US20060037893A1 - Single-use long-life faucet-mounted water filtration devices - Google Patents

Single-use long-life faucet-mounted water filtration devices Download PDF

Info

Publication number
US20060037893A1
US20060037893A1 US11/255,670 US25567005A US2006037893A1 US 20060037893 A1 US20060037893 A1 US 20060037893A1 US 25567005 A US25567005 A US 25567005A US 2006037893 A1 US2006037893 A1 US 2006037893A1
Authority
US
United States
Prior art keywords
filter
housing
water filtration
water
filtration device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/255,670
Inventor
William Warren
Gordon Lewis
Robert Rizzari
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US11/255,670 priority Critical patent/US20060037893A1/en
Publication of US20060037893A1 publication Critical patent/US20060037893A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D27/00Cartridge filters of the throw-away type
    • B01D27/005Making filter elements not provided for elsewhere
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D27/00Cartridge filters of the throw-away type
    • B01D27/08Construction of the casing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D27/00Cartridge filters of the throw-away type
    • B01D27/10Safety devices, e.g. by-passes
    • B01D27/101Filter condition indicators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/04Plug, tap, or cock filters filtering elements mounted in or on a faucet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/143Filter condition indicators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30Filter housing constructions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/44Time
    • C02F2209/445Filter life
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00Location of water treatment or water treatment device
    • C02F2307/06Mounted on or being part of a faucet, shower handle or showerhead

Definitions

  • the field of the invention is water filtration devices.
  • Water is supplied from municipal water systems (many of which are aging), private water systems and wells in the United States. Frequently, this water has poor taste, particulates, unwanted odors and in many cases contaminants contained in it. Municipal water is commonly treated with chlorine to eliminate bacterial contaminants. Chlorine adds what most people feel is an unpleasant taste and odor. Water conditions vary greatly according to the geographic area and therefore travelers may also experience these problems as they visit hotel and motel rooms around the country. It is desirous to remove bad tastes, odors, sediment and contaminants before ingesting the water or using it for cooking food.
  • Water treatment devices of many varieties have proven effective in accomplishing water purification. Generally these devices work through chemical and mechanical actions that remove contaminants and impurities from water. These filters have a finite life. Sediment can eventually clog a filter and chemical reactions realized through adsorption (carbon media) and ion exchange (cation resin) have a limited capacity.
  • U.S. Pat. No. 5,989,425 to Yonezawa et al. discloses a multi-way valve and water purifier.
  • the multi-way valve is disclosed as a small-sized one which may be used with a small-sized water purifier.
  • the device disclosed in the '425 patent is a faucet mounted filter and it is designed for removing and exchanging valve bodies.
  • U.S. Pat. No. 5,017,286 toezeman and U.S. Pat. No. Re. 35667 to Heiligman disclose a vertical filter enclosed in a housing and the housing is supported by a duct.
  • the vertical filter may be permanently secured to the filter by hot melt adhesive which renders the filter non-removable. Further, the vertical filter may be pre-wrapped with a porous paper pre-filter.
  • the device disclosed in the '286 patent is a faucet mounted filter. If the filter is glued to the filter housing the filter housing must be removed and discarded together with the filter. A new filter housing (and filter) must then be mounted onto the duct of the diverter valve each time the filter housing is replaced.
  • the filter housing is secured by a retaining clip.
  • the male duct of the filter housing is press-fit into an opening in the diverter valve.
  • the male duct of the filter housing may be affixed to the diverter valve by a U-clip, cotter pin or the like.
  • the filter housing as disclosed in the '286 patent is disclosed as residing vertically in front of the faucet. In short, it is not a simple matter to change the filter housing of the device disclosed in the '286 patent.
  • U.S. Pat. No. 5,527,451 to Husinee et al. discloses a faucet mounted filter utilizing a replacement filter cartridge.
  • the replacement filter cartridge resides within a larger rotatable housing which channels water flow either into the filter or through the diverter valve assembly.
  • Husinee et al. also discloses a very complicated flow totalization mechanism which includes porting water to a turbine driven mechanism prior to filtering thereof.
  • U.S. Pat. No. 6,571,960 B2 to Williamson et al. discloses a faucet-mounted water filtration device whose filter housing includes a valve therein and whose filter housing extends longitudinally rearwardly from the point of attachment to the faucet.
  • the filters in Williamson et al. are replaceable filter cartridges.
  • U.S. Pat. No. 6,284,129 B1 to Giordano et al. discloses a rotating a magnetized impeller actuating a reed switch.
  • the devices disclosed therein are designed for disassembly of some sort as a matter of maintenance of the filtration device. This requires labor and attendant time. Complex flow totalization mechanisms such as the one disclosed in Husinee et al. '451 present maintenance problems. The need to change the filter and/or the filter housing and/or the diverter valve all require labor and attendant time.
  • the devices disclosed therein are designed for disassembly of some sort as a matter of maintenance of the filtration device.
  • Filtration devices customarily employ replaceable filter cartridges of some type. These arrangements require either a coupling arrangement for attaching and detaching a replacement filter cartridge or a large chamber to entirely enclose the replacement filter cartridge. Both approaches require additional components and materials that add to the manufactured cost and complexity of the device.
  • each of the foregoing disclosures by requiring the replacement of the filter element, cause great inconvenience to the user by having him search for and procure replacement filter elements at considerable cost. This arrangement, while lucrative for the manufacturer, is a well documented nuisance for the consumer.
  • a single-use faucet-mounted water filtration device is provided.
  • the device is of uni-body construction and has no removable or replaceable parts yet provides long life operation. This arrangement makes the device more convenient to use compared with other devices that require frequent replacement of filter cartridges.
  • the device is constructed with a minimum of components making it relatively small in size and less costly to manufacture. While compact, the device is able to hold enough filter media to allow for long life operation.
  • the life of the water filtration device is dependent upon the type of filter media used, sizing and geometry of the filter media, and the sizing and geometry of water flow paths. For instance, water filtration devices having a useful life of 300 gallons or more can be made utilizing the teachings of the instant invention. Water filtration devices having useful lives smaller than 300 gallons may also be made utilizing the teachings of the instant invention. Performance indications as a function of integrated flow are indicated by a light emitting diode.
  • a single-use device is provided for use in a kitchen sink and a device is provided for use in a bathroom sink.
  • the bathroom embodiment of the single-use faucet filter is scaled to the small size of bathroom sinks and therefore practical for use in bathrooms.
  • the bathroom filter device allows residential users to have the benefit of filtered water in close proximity to the bedroom avoiding the inconvenience of going to a kitchen sink for water during the night.
  • the bathroom device is small and disposable it may be taken with a traveler and installed in a hotel or motel room. Further, as travelers readily discern the differences between water and its tastes from one place to another it is highly desirable that the water filter be portable.
  • the invention includes a front housing connectable to a water faucet and a filter housing having an inlet and an outlet. An end cap of the filter housing completes the filter housing.
  • the front housing is non-removably affixed to the filter housing and the water filter is non-removably contained within the water filter housing.
  • the water filter housing includes a chamber in communication with the water filter.
  • the filter is preferably activated carbon and includes a filter pre-wrap. Other filter media may be used.
  • the outlet resides in the chamber. Alternatively, a second outlet may also reside in the chamber in the embodiment of the bathroom filter.
  • the single use water filtration device is small.
  • the embodiment designed for bathroom use has a filter diameter less than or equal to 1.6 inches.
  • the embodiment designed for kitchen use has a filter diameter less than or equal to 2.2 inches.
  • the water filtration devices disclosed herein, namely the bathroom and kitchen embodiments, reside substantially rearwardly with respect to the water faucet. Other diameters and sizes of the water filtration devices disclosed herein may be made using the teachings hereof.
  • the filter includes ends thereof each secured to an end cap.
  • the end caps have peripheral seal portions which seal against the interior of the filter housing.
  • a housing end cap is ultrasonically welded to the filter housing.
  • Other welding methods such as microwave, radio frequency (RF), heat and induction welding may be employed to weld various portions of the water filtration devices disclosed herein together.
  • RF radio frequency
  • the second outlet includes a valve seat and a valve interposed in the filter housing being operable against the valve seat of the second outlet for controlling the flow out of the second outlet.
  • the valve includes a plunger having a foot and an elastomeric ball valve or boot residing over the foot. The foot of the plunger and the elastomeric ball valve reside within the housing.
  • a handle is pivotally connected to the end cap of the filter housing and engages the plunger such that when the plunger is depressed the elastomeric ball valve moves inwardly toward the center of the housing and away from the seat of the second outlet.
  • a fountain head is rotatably secured in the plunger and lever for communication with a passageway in the plunger.
  • a spring is interposed between the plunger and the filter housing urging the elastomeric ball valve against the valve seat of the second outlet.
  • a front housing having first and second passageways is non-removably affixed to the filter housing.
  • the front housing includes a directional valve residing within the front housing and movable therein for directing water into the filter for filtering or through the front housing for direct use of the unfiltered water.
  • the filter housing includes three protrusions which interengage corresponding apertures in the front housing.
  • the front housing also includes a continuous periphery welded to the filter housing by one of the aforementioned methods.
  • the filter housing includes a recess whose shape is the reciprocal of the continuous periphery of the front housing and the continuous periphery of the front housing fits snugly within the recess in the filter housing.
  • the end cap of the filter housing is welded to the filter housing. Three parts or pieces, the filter housing, the front housing and the end cap of the filter housing are welded together to provide a unibody or integral construction.
  • a gate having a magnet affixed therein resides in the chamber and swings between a first position and a second position. Spacers extending from the end cap serve to ensure that the gate remains in alignment with respect to the earth. These spacers also serve to ensure that the filter subassembly remains in proper position.
  • the first end cap of the filter includes a first hinge member and the gate includes a second hinge member which coacts with the first hinge member to enable the gate to swing between first and second positions.
  • a gate position sensor resides in a dry portion of the end cap of the water filter housing and is actuated when the gate swings to the second position and the magnet is in proximity to the sensor.
  • An electronic package and a light emitting diode reside in the dry portion of the end cap of the water filter housing.
  • the electronic package outputs a signal to the light emitting diode which indicates the performance of the water filtration device.
  • the electronic package outputs three discrete signals to the light emitting diode to indicate three performance levels of the filter.
  • a method of making a water filtration device comprises the steps of: attaching end caps to the filter; inserting the filter within a filter housing; aligning the filter within the filter housing; inserting a portion of a gate into corresponding receptacles on one end of one of the end caps previously affixed to the filter; inserting a sensor and electronic package into an open end of a filter housing end cap; affixing the filter housing end cap to the filter housing forming a chamber between a closed end of the filter housing end cap and the one end of one of the end caps; and, affixing a front housing to the filter housing.
  • the step of attaching end caps to said filter may be performed with adhesive.
  • the steps of affixing the end cap of the filter housing, affixing the filter housing end cap to the filter housing and affixing the front housing to the filter housing may be performed by an ultrasonic welding process or one of the other welding processes identified herein.
  • FIG. 1 is an exploded assembly view of a first embodiment of the water filtration device.
  • FIG. 2 is a perspective view of a first embodiment of the water filtration device.
  • FIG. 2A is a perspective view of a first embodiment of the water filtration device with the handle of the valve pulled forward.
  • FIG. 3 is a cross-sectional view of the first embodiment of the water filtration device taken along the lines 3 - 3 of FIG. 2 .
  • the filter is not operating as no water is being directed into it.
  • FIG. 3A is an enlargement of a portion of FIG. 3 .
  • FIG. 3B is a cross-sectional view of the first embodiment of the water filtration device with the fountain lever depressed and with water flowing through the filter.
  • FIG. 3C is an enlargement of a portion of FIG. 3B .
  • FIG. 3D is a cross-sectional view of the first embodiment of the water filtration device similar to FIG. 3 with an O-ring used as an additional seal for the filter subassembly.
  • FIG. 4 is an enlargement of the front housing of the first embodiment of the water filtration device.
  • FIG. 4A is a cross-sectional view of the front housing taken along the lines 4 A- 4 A of FIG. 4 .
  • FIG. 4B is a cross-sectional view of the front housing taken along the lines 4 B- 4 B of FIG. 4 .
  • FIG. 4C is a top view of the front housing of the first embodiment.
  • FIG. 4D is an enlarged rear perspective view of the front housing of the first embodiment.
  • FIG. 4E is a cross-sectional view of the rotatable collar (faucet adapter) and the lock collar which is secured to the front housing.
  • FIG. 4F is a cross-sectional view of the aerator mounted into the front housing.
  • FIG. 4G is a cross-sectional view taken along the lines 4 G- 4 G of FIG. 2 with the flow diverter valve inserted in the front housing in a first position, bypass position.
  • FIG. 4H is a cross-sectional view taken along the lines 4 H- 4 H of FIG. 2A with the flow diverter valve inserted in the front housing in a second position which directs flow into the filter.
  • FIG. 5 is a front perspective view of the filter housing of the first embodiment of the water filtration device.
  • FIG. 5A is a front view of the filter housing of the first embodiment of the water filtration device.
  • FIG. 5B is a cross-sectional view of the filter housing taken along the lines 5 B- 5 B of FIG. 5A .
  • FIG. 5C is a cross-sectional view of the filter housing taken along the lines 5 C- 5 C of FIG. 5A .
  • FIG. 5D is a cross-sectional view of the filter housing taken along the lines 5 D- 5 D of FIG. 5A .
  • FIG. 5E is a bottom view of the filter housing of the first embodiment of the water filtration device.
  • FIG. 5F is a left side view, the open end view, of the filter housing of the first embodiment of the water filtration device.
  • FIG. 6 is a perspective view of the valve and its handle which are used in both the first embodiment and the second embodiment of the water filtration device.
  • FIG. 6A is a perspective view of the other side of the valve and its handle of FIG. 6 .
  • FIG. 7 is a perspective view of the electronic package (electric circuit), sensor and light emitting diode used in the first and second embodiments of the water filtration device.
  • FIG. 7A is a side view of the electronic package (electric circuit), sensor and light emitting diode package of FIG. 7 .
  • FIG. 8 is a side view of the housing end cap.
  • FIG. 8A is a perspective view of the other side, i.e., the wetted side, of the housing end cap illustrated in FIG. 8 .
  • FIG. 9 is a front view of the gate of the first embodiment.
  • FIG. 9A is a cross-sectional view taken along the lines 9 A- 9 A of FIG. 9 .
  • FIG. 10 is a front view of the left end cap of the filter.
  • FIG. 10A is cross-sectional view of the left end cap of the filter taken along the lines 10 A- 10 A of FIG. 10 .
  • FIG. 11 is a perspective view of the plunger used in conjunction with the lever and elastomeric ball valve.
  • FIG. 11A is a another perspective view of the plunger used in conjunction with the lever and elastomeric ball valve.
  • FIG. 11B is a top view of the plunger.
  • FIG. 11C is a cross-sectional view of the plunger taken along the lines 11 C- 11 C of FIG. 11B .
  • FIG. 11D is a cross-sectional view taken along the lines 11 D- 11 D of FIG. 11B .
  • FIG. 12 is a front view of the ball valve.
  • FIG. 12A is a cross-sectional view taken along the lines 12 A- 12 A of FIG. 12 .
  • FIG. 13 is a top view of the lever used to operate the plunger of the first embodiment.
  • FIG. 13A is a cross-sectional view of the lever taken along the lines 13 A- 13 A of FIG. 13 .
  • FIG. 13B is a perspective view of the underside of the lever of FIG. 13 .
  • FIG. 14 is a front view of the fountain head.
  • FIG. 14A is a cross-sectional view taken along the lines 14 A- 14 A of the fountain head of FIG. 14 .
  • FIG. 15 is an exploded perspective view of a second embodiment of the invention.
  • FIG. 16 is a perspective view of a second embodiment of the water filtration device.
  • FIG. 16A is a perspective view of a second embodiment of the water filtration device with the valve handle pulled forward.
  • FIG. 17 is a cross-sectional view of the second embodiment of the water filtration device taken along the lines 17 - 17 of FIG. 16 .
  • FIG. 17A is a cross-sectional view of the second embodiment of the water filtration device similar to FIG. 17 except the gate is shown rotated clockwise in the flow condition.
  • FIG. 18 is a perspective view of the front housing of the second embodiment.
  • FIG. 18A is a cross-sectional view taken along the lines 18 A- 18 A of FIG. 18 .
  • FIG. 18B is a cross-sectional view taken along the lines 18 B- 19 B of FIG. 18 .
  • FIG. 18C is a top view of the front housing of the second embodiment.
  • FIG. 18D is a rear perspective view of the front housing of the second embodiment of the water filtration device.
  • FIG. 18E is a cross-sectional taken along the lines 18 E- 18 E of FIG. 16 with the flow diverter valve inserted in the front housing in a first position, bypass position.
  • FIG. 18F is a cross-sectional view taken along the lines 18 F- 18 F of FIG. 16A with the flow diverter valve inserted in the front housing in a second position which directs flow into the filter.
  • FIG. 19 is a front perspective view of the filter housing of the second embodiment of the water filtration device.
  • FIG. 19A is a bottom view of the of the filter housing of the second embodiment of the water filtration device.
  • FIG. 19B is a cross-sectional view taken along the lines 19 B- 19 B of FIG. 19A .
  • FIG. 19C is a cross-sectional view taken along the lines 19 C- 19 C of FIG. 19C .
  • FIG. 19D is a left side view, the open end view, of the filter housing of the second embodiment of the water filtration device.
  • FIG. 20 is a front side view of the end cap of the housing of the second embodiment of the water filtration device.
  • FIG. 20A is a right side view of the end cap of FIG. 20 .
  • FIG. 20B is a perspective view of the end cap of FIG. 20 .
  • FIG. 20C is a view of the left side of the end cap of FIG. 20 .
  • FIG. 20D is another perspective view of the end cap.
  • FIG. 1 an exploded assembly view of a first embodiment of the water filtration device 100 , the various components of the single-use faucet mounted water filter are shown.
  • Filter 113 is illustrated having a longitudinal bore 129 therethrough.
  • Filter 113 is illustrated without a filter pre-wrap in this view but such a pre-wrap 495 is specifically within the scope of this invention and is illustrated in FIGS. 4G and 4H .
  • the filter is preferably a carbon block but may be a fiber bundle or granular activated carbon. Further, the carbon block may include bacteriastic materials, ion exchange resins and zeolites to assist in its filtration activity.
  • End caps 114 and 115 are affixed to said filter with a hot melt adhesive applied to the entire mating surfaces of end caps 114 and 115 including but not limited to the dowel portions thereof such as dowel 130 A on right end cap 130 .
  • a hot melt adhesive applied to the entire mating surfaces of end caps 114 and 115 including but not limited to the dowel portions thereof such as dowel 130 A on right end cap 130 .
  • gate hinges 132 , 132 A To ensure that the subassembly is properly oriented, gate hinges 132 , 132 A must be aligned in relation to a mark 160 on the filter housing as the subassembly is inserted into the filter housing 101 . Gate hinges 132 , 132 A are properly positioned when their axis is parallel to the earth or parallel to a tangent of the earth's surface.
  • the left side view (open end view) of the filter housing 101 of the first embodiment of the water filtration device, the concave right side wall 508 of the filter housing 101 is illustrated along with molded ribs 515 .
  • the diameter of the filter housing 101 is approximately 1.6 inches and the length of the filter housing as viewed, for example, in FIGS. 5 and 5 A, is approximately 4.2 inches.
  • Other dimensions may be utilized in the construction of water filtration devices as taught herein without departing from the spirit and scope of the invention.
  • Gate 118 is rotatably affixed to gate hinges 132 , 132 A by inserting prongs or knobs 133 , 133 A in the hinges. Knobs or prongs 133 , 133 A are snap-fit into apertures in the hinges 132 , 132 A enabling rotation of the gate 118 when water pushes against it as it exits the filter. As will be explained in more detail hereinafter, gate 118 swings (rotates) in a clockwise direction about its axis of rotation (see FIGS. 3B and 3C ) upon the application of pressure caused by water flow through the filter 113 and the longitudinal bore 129 therein.
  • gate 118 includes a magnet 117 which is press fit into a recess 134 in the gate and hermetically sealed with either hot melt adhesive or potting compound.
  • FIG. 3 is a cross-sectional view 300 of the first embodiment of the water filtration device taken along the lines 3 - 3 of FIG. 2 . Presence or absence of magnet 117 is sensed by reed switch (reed relay) 135 . Housing end cap 102 includes spacers 142 and 143 . See FIG. 8A , a perspective view of the end cap to best view the spacer 142 which is not well illustrated in the exploded assembly view of FIG. 1 .
  • Spacers 142 , 143 assist in correctly spacing the housing end cap 102 with respect to the left end cap 114 of the filter. Once housing end cap 102 is inserted into the filter housing 101 , spacers 142 , 143 ensure that the filter subassembly comprising the filter 113 , left end cap 114 and right end cap 115 does not migrate leftwardly (See FIG. 3 ) too far and remains in proximity to the mold ribs 515 of the interior of the housing. Housing end cap 102 includes a tapered portion 190 for insertion into the filter housing 101 . A chamber is formed between the end cap 114 and the closed end 803 A of the housing end cap 102 . See, FIG. 3 .
  • Water is expelled from passageway 141 in the left end cap 114 of the filter housing and exerts a force against gate 118 causing it to rotate in a clockwise direction.
  • gate 118 rotates in the clockwise direction the magnet 117 is urged toward the reed switch 135 (reed relay) causing it to effectively close which starts the electronic timer within electronic package 112 to continuously measure the time when the magnet 117 is in proximity to the switch.
  • the electronic package (electric circuit or integrated circuit) measures the cumulative time of flow through the filter and outputs signals to the light emitting diode (LED) indicating filter performance.
  • the LED indicates three colors representative of cumulative filter usage one of which indicates that the water filtration device should be discarded.
  • the electric circuit outputs three discrete signals to the light emitting diode.
  • the electronic package is secured in a dry well 170 which in turn is secured and closed by end plate 116 .
  • the housing end cap 102 After the housing end cap 102 is installed it is welded to the filter housing 101 .
  • the end plate 116 is glued or ultrasonically welded to the housing end cap 102 . That is, the housing end cap 102 is welded to the filter housing and the end plate 116 is welded or glued to the housing end cap 102 .
  • Reference numeral 139 represents the raised portions of the end plate 116 which are ultrasonically welded or glued to the housing end cap 102 .
  • reference numerals 302 , 303 , 130 , 131 signify peripheral edges or portions of the end caps 114 , 115 of the filter which slidingly engage and seal against the interior walls of the filter housing 101 .
  • elastomeric seal 375 acts as an additional optional seal which resides between peripheral edge portions 302 and 131 and elastomeric seal 376 acts as an additional optional seal which resides between peripheral edge portions 303 and 130 .
  • aperture 137 permits light emitting diode 136 which stems from the electronic package 112 to pass therethrough.
  • a small amount of potting compound may be used around the light emitting diode to seal any space between the diode and the aperture 137 when the light emitting diode is installed in place.
  • the electronic package 112 and the substrate upon which the electronics are mounted are housed in a dry space in the housing end cap 102 .
  • Filtered outlet 107 A always expels filtered water whenever water enters the filter housing inlet 125 . See, FIG. 4H .
  • Inlet 125 is generally cylindrically shaped and includes a recess 126 for receiving an O-ring seal 502 and a passageway 505 for conducting unfiltered water to the interior of the filter housing so that it can be filtered by filter 113 .
  • Filter 113 is a carbon block filter and it is necessary that the water to be filtered have a certain residence time in contact with the filter so that impurities therein can be removed.
  • the preferred materials of the front housing 103 , filter housing 101 and housing end cap 102 are ABS (acrylonitrile butadiene styrene) plastic although other plastics may be used.
  • the preferred adhesive to be used for securing the end caps 114 , 115 to the filter is a hot melt adhesive.
  • the gate material is HDPE (high density polyethylene). End caps 114 , 115 are also HDPE and the material used for sealing.
  • Lever 122 is preferably an acetyl material.
  • FIG. 5 is a front perspective view 500 of the filter housing 101 of the first embodiment of the water filtration device, i.e., a bathroom filter.
  • FIG. 5 illustrates an inlet surface 504 adapted to receive a corresponding mating surface 190 from the housing end cap 102 . See, FIG. 1 to identify the corresponding mating surface 190 on the housing end cap 102 .
  • the filter housing 101 includes a recessed region 501 for receiving the front housing 103 as best seen in FIGS. 1, 2 and 4 G.
  • Engagement pins 127 , 128 assist in positioning the front housing 103 with respect to the recessed region 501 for ultrasonic welding thereto. It is the ultrasonic welding of the front housing 103 to the filter housing which secures the parts together and makes them into an integral unit.
  • FIG. 4D a rear perspective view 400 D of the front housing of the first embodiment (bathroom filter) is illustrated along with the receptacles 420 , 419 .
  • Reference numerals 415 , 417 and 418 indicate mold cavities which are formed as a part of the molding process of the front housing 103 .
  • Joint 421 is welded to the filter housing 101 .
  • O-ring seal 502 which resides in recess 126 mates with cylindrical recess 410 in the front housing 103 as illustrated in FIG. 4D to prevent leakage of water as it is being directed into the filter housing as will be explained hereinbelow.
  • FIG. 5A is a front view 500 A of the filter housing 101 of the first embodiment of the water filtration device.
  • the right end 508 is closed and is convexly shaped when viewed from the outside of the filter housing. Viewing the interior of the right end 508 as in FIG. 5F , it is shaped concavely.
  • the water filter 113 with end caps attached thereto is inserted from the left side, the open side, of the filter housing 101 .
  • FIG. 5B is a cross-sectional view 500 B of the filter housing taken along the lines 5 B- 5 B of FIG. 5A .
  • FIG. 5B provides a good illustration of recess 126 in inlet 125 and of pin 128 .
  • Outlets 180 and 107 A are also illustrated in FIG. 5B .
  • FIG. 5C is a cross-sectional view 500 C of the filter housing taken along the lines 5 C- 5 C of FIG. 5A .
  • Outlet port 180 is illustrated in cross-section as having two diametrical sections 503 and 506 .
  • outlet port 107 A is illustrated as having two diametrical sections 519 and 507 .
  • FIG. 5D is a cross-sectional view 500 D of the filter housing taken along the lines 5 D- 5 D of FIG. 5A .
  • FIG. 5D illustrates the recessed region 501 in filter housing 101 .
  • Also illustrated in FIG. 5D is the inlet 125 having passageway 505 therein.
  • FIG. 5E is a bottom view 500 E of the filter housing of the first embodiment of the water filtration device illustrating diametrical portions 507 , 519 of outlet 107 A.
  • FIG. 5E illustrates that outlet 107 A resides generally forwardly in the filter housing.
  • Outlet 107 A includes spout 107 which is affixed through an ultrasonic weld or by gluing same to the filter housing 101 . See, FIG. 1 .
  • FIG. 2 is a perspective view 200 of a first embodiment of the water filtration device.
  • collar lock 105 is inserted within collar 104 and is welded to surface 401 of front housing 103 .
  • FIG. 4 is an enlargement 400 of the front housing of the first embodiment of the water filtration device.
  • FIG. 4E is a cross-sectional view 400 E of the collar 104 , collar lock 105 and screen 110 .
  • Screen 110 includes an elastomeric generally circular periphery and a convexly shaped screen portion 110 A.
  • Collar 104 may rotate with respect to collar lock 105 in the connection and disconnection process with a faucet.
  • the faucet (not shown) seals on the elastomeric portion of the screen 110 .
  • Screen 110 assists in removing large particulate matter.
  • FIG. 4G is a cross-sectional view 400 G taken along the lines 4 G- 4 G of FIG. 2 with the flow diverter valve 108 inserted in the front housing in a first position, bypass position.
  • Flow arrow 470 indicates the path flow will take through the front housing when the water bypasses the filter.
  • FIG. 4H is a cross-sectional view 400 H taken along the lines 4 H- 4 H of FIG. 2A with the flow diverter valve 108 inserted in the front housing in a second position which directs flow into the filter.
  • Flow arrow 471 indicates the path of flow through the front housing when the diverter valve 108 is rotated counterclockwise when viewing FIG. 4H to a second position. Referring to FIG. 2A , valve and valve handle 108 are pulled forward to the second position when it is desired to filter the water.
  • elastomeric seal 450 is illustrated as sealing passageways 603 and 610 in valve 108 .
  • Passageway 610 is formed by wall 611 and passageway 603 is formed by wall 605 which is horn shaped.
  • FIG. 6 a perspective view 600 of the valve and its handle 108 which are used in both the first embodiment and the second embodiment of the water filtration device.
  • the handle portion of the valve includes an insert 109 which may glued to a corresponding recess 109 A in the handle. See, FIG. 1 .
  • FIG. 4A is a cross-sectional view 400 A taken along the lines 4 A- 4 A of FIG. 4 illustrating the generally cylindrical wall 401 to which the collar lock 105 is welded.
  • FIG. 4E is a cross-sectional view 400 E illustrating the collar lock 105 secured to the wall 401 with the collar 104 being rotatable and movable slightly vertically for engagement with a faucet. Screen 110 is also illustrated in FIG. 4A .
  • valve 108 is not shown therein so as to view the valve stop 407 which controls the rotation of the valve between its first (bypass position) and its second (filter) position.
  • Valve cavity 430 is tapered as it extends inwardly as indicated by circular lines 412 and 431 . See, FIGS. 4A and 4B .
  • Ports 403 and 408 join to form a water inlet to the valve cavity 430 .
  • Water outlet 409 conveys water to be filtered when the front housing is nonremovably affixed to the filter housing 101 and the valve 108 is in its second position.
  • FIG. 4B is a cross-sectional view 400 B taken along the lines 4 B- 4 B of FIG. 4 and also illustrates the taper of valve cavity 430 .
  • FIGS. 4A and 4B recess 416 is illustrated for receiving a seal 640 on the valve 108 illustrated in FIG. 6 .
  • Bypass port or passageway 414 is illustrated in FIGS. 4A and 4B .
  • Stop 407 is also illustrated in FIG. 4B as is recess 410 for receiving inlet 125 of the filter housing 101 .
  • mold aperture 415 from the molding process is illustrated in cross section.
  • FIG. 4C is a top view 400 C of the front housing 103 of the first embodiment and also illustrates the ports 403 and 408 .
  • FIG. 4 is an enlargement 400 of the front housing 103 of the first embodiment of the water filtration device illustrating wall 401 to which the collar lock 105 is welded. Ports. 403 , 408 in floor 404 are shown in the top of the housing as are mold openings 402 . Recess 416 in valve cavity 431 is shown as is rim 406 which is welded to the filter housing 101 . Recess 416 receives seal 640 on valve 108 so as to prevent leakage about valve 108 .
  • bottom portion 103 A of the front housing is illustrated along with bore 422 having stepped portions 429 and 413 .
  • Bore 422 receives aerator assembly 111 / 111 A and spout 106 secures the aerator assembly in place as it is welded to the bottom portion 103 A of the housing 103 .
  • FIG. 4F a cross-sectional view 400 F of the aerator assembly 111 / 111 A mounted into the front housing.
  • reference numerals 302 , 303 , 131 , and 130 indicate sliding engagement of the filter end caps 114 , 115 with the filter housing 101 .
  • second outlet 180 in the filter housing 101 is disclosed.
  • Alignment mark 160 is also illustrated well in FIG. 1 and it is this mark which is used during assembly to ensure that the left filter end cap 114 and hinges 132 / 132 A are positioned such that the axis of the hinges are parallel to the earth enabling gate 118 to swing freely upon the application of pressure thereto and not to bind.
  • Plunger 120 having a passageway 120 A therein fits somewhat snugly within second outlet 180 and is slidingly movable therein.
  • Lever 122 resides in engagement with the plunger 120 such that the plunger 120 and lever 122 move together.
  • lever 122 is hinged and pivotal on prongs or protrusions 138 of the housing end cap 102 .
  • lever 122 has a decorative insert 123 which resides in a corresponding recess.
  • Fountain head 119 resides in and through passageway 122 A in lever 122 .
  • Fountain 119 includes a passageway 119 A in communication with passageway 120 A in plunger 120 . Passageway 120 A is exposed to fluid under pressure in chamber 350 when the plunger is depressed by lever 122 .
  • Plunger 120 includes a shoe portion 1104 .
  • FIG. 11 is a perspective view 1100 of the plunger 120 used in conjunction with the lever 122 and elastomeric ball valve 121 .
  • Plunger 120 includes a cylindrical portion 1103 and a shaft 1105 with a shoe 1104 on the end thereof.
  • a flat extending portion 1101 of the plunger resides against a corresponding surface of the lever 122 .
  • a taper 1102 leads to passageway 120 A.
  • FIG. 11A is a another perspective view 1100 A of the bottom side of the plunger 120 used in conjunction with the lever 122 and elastomeric ball valve 121 .
  • Contoured side edge portion 1150 of plunger 120 engages lever 122 .
  • Passageway 120 A and bottom side 1106 of the flat extending portion 1101 are best viewed in FIG. 11A .
  • Spring 124 is operable between the bottom side 1106 of plunger and a lip 570 of the filter housing. See FIG. 3 , a cross-sectional view 300 of the first embodiment of the water filtration device taken along the lines 3 - 3 of FIG. 2 .
  • the filter is not operating meaning that the diverter valve 108 is in the bypass (first) position.
  • FIG. 11B is a top view 1100 B of the plunger 120 illustrating the passageway 120 A.
  • FIG. 11C is a cross-sectional view 1100 C of the plunger 120 taken along the lines 11 C- 11 C of FIG. 11B .
  • FIG. 11D is a cross-sectional view 1100 D taken along the lines 11 D- 11 D of FIG. 11B .
  • FIG. 12 is a front view 1200 of the ball valve 121 .
  • FIG. 12A is a cross sectional view 1200 A taken along the lines 12 A- 12 A of FIG. 12 .
  • Shoe 1104 is covered by elastomeric valve 121 which includes a cavity which is substantially reciprocally shaped to the shape of the shoe.
  • Elastomeric valve of boot 121 includes a surface 1202 which engages the interior of the filter housing around passageway 506 . See, FIGS. 5C and 3 .
  • FIG. 3A is an enlargement 300 A of a portion of FIG. 3 illustrating the valve 121 engaged with the inner wall of housing 101 .
  • Spring 124 is operable between filter housing 101 and plunger 120 and urges the plunger and the lever upwardly when viewing FIGS. 3 and 3 A.
  • annular space 301 between the filter 113 and the filter housing 101 is illustrated. Water occupies this annular space 301 during operation of the filter. Water resides in this annulus and flows through filter 113 into passageway 129 and out port 141 impinging upon gate 118 rotating it clockwise.
  • water filtration device of the first embodiment When the water filtration device of the first embodiment is operable, water will be expelled from both outlets 107 A and 180 if lever 122 is depressed. If the lever is not depressed then elastomeric valve 121 is seated against the curved inner surface of the filter housing 101 and water will be expelled just from the outlet 107 A.
  • Valve 121 is preferably elastomeric but may be made of other materials such as metal.
  • FIG. 3 illustrates spacer 142 extending from the closed end 803 A of housing end cap 102 near the filter left end cap 114 .
  • FIG. 8 is a side view 800 of housing end cap 102 .
  • Closed end 803 is a wall or boundary between the wetted chamber 350 and the electronic package 112 and sensor 135 .
  • Guide ribs 801 , 802 and 810 enable placement of the generally-rectangularly shaped electronic package within the drywell 811 of the housing end cap 102 .
  • End plate 116 fits over the opening 811 of the end cap and is either welded or glued 139 to the end cap for hermetic sealing thereof.
  • FIG. 8A is a perspective view 800 A of the other side, i.e., the wetted side, of the end illustrated in FIG. 8 . Sloped surface 190 which is welded to filter housing 101 is illustrated in FIG. 8A .
  • FIG. 3B is a cross-sectional view 300 B of the first embodiment of the water filtration device with the fountain lever 122 depressed and valve 121 off its seat. It will be noticed that plunger 120 bends slightly when lever 122 is depressed. This bending tends to seal the passageway denoted by reference numeral 506 .
  • Gate 118 is shown rotated clockwise due to water flow out of passageway 141 . In this position, gate 118 and magnet 117 are in proximity to reed switch 135 .
  • FIG. 3C is an enlargement 300 C of a portion of FIG. 3B and illustrates the flow path 391 of water past valve 121 , through passageway 120 A of plunger 120 and through passageway 199 A of fountain 119 . It will be noticed in FIGS. 3, 3A , 3 B and 3 C that outlet 107 A is not shown therein as it is located fore (ahead) with respect to the cross-section of these drawing figures.
  • FIG. 6 is a perspective view 600 of the valve 108 and its handle which are used in both the first embodiment and the second embodiment of the water filtration device.
  • FIG. 6 illustrates the underside (the side that is not exposed) when viewing FIG. 2 .
  • Reference numeral 612 illustrates a cavity from the molding process.
  • Reference numeral 609 indicates the handle portion of the valve 108 and reference numeral 608 indicates the other or second end of the valve 108 .
  • Ridges 602 engage stop 407 to limit the rotation of the valve between its first bypass position and its second filter position.
  • a horn shaped passageway 603 is formed by wall 605 .
  • Wall 606 creates an annulus 604 in which a seal (not shown in FIG. 6 ) is positioned.
  • a seal 450 is positioned in annulus 604 as indicated in FIGS. 4G and 4H .
  • a groove 607 resides in the valve 108 for receiving a seal (not shown in FIG. 6 ) which prevents leakage of water from the valve 108 when it inserted in the front housing 103 .
  • FIG. 6A is a perspective view 600 A of the exposed side of the valve and its handle 108 as viewed in FIG. 2 .
  • FIG. 6A illustrates seal 640 in groove 607 for sealing the valve 108 which is snap fit in the front housing.
  • FIG. 7 is a perspective view 700 of the electronic package 112 , battery 701 , sensor 135 , leads 702 , 703 and light emitting diode 136 used in the first and second embodiments of the water filtration device.
  • sensor 135 is a reed switch also known as a reed relay.
  • FIG. 7A is a side view 700 A of the electronic package illustrated in FIG. 7 .
  • FIG. 9 is a front view 900 of gate 118 of the first embodiment.
  • Recess 134 receives magnet 117 which actuates reed switch 135 when in proximity therewith. Prongs or knobs 134 interengage corresponding hinges 134 as illustrated in FIGS. 1 and 3 .
  • FIG. 9A is a cross-sectional view 900 taken along the lines 9 A- 9 A of FIG. 9 .
  • FIG. 9A illustrates the contour of the gate 118 which includes front 903 and rear 902 surfaces. Sloping surface 904 diverges to body 905 having recess 134 in which magnet 117 is housed.
  • Locks 901 secure magnet 117 in place. The magnet is installed by simply pushing on the magnet to orient it past the locks 901 which are plastic and somewhat malleable enabling insertion of the magnet into the plastic. The magnet is then hermetically sealed with potting compound.
  • FIG. 10 is a front view 1000 of the left end cap 114 of the filter 113 .
  • Hinges 132 / 132 A are illustrated in FIGS. 10 and 10 A.
  • FIG. 10A is cross-sectional view 1000 A of the left end cap of the filter taken along the lines 10 A- 10 A of FIG. 10 illustrating the hinges 132 / 132 A, passageway 141 , dowel 1001 , and protrusions 1002 and 1003 which slidingly seal with respect to the filter housing.
  • Peripheral end portion such as the one denoted by reference numeral 131 are relatively soft and seal against the interior of the filter housing.
  • FIG. 13 is a top view 1300 of the lever 122 used to operate the plunger 120 of the first embodiment.
  • Reference numeral 1301 indicates a recess in which insert 123 is secured by adhesive.
  • Apertures or hinges 140 / 140 A engage prongs or protrusions 138 for pivoting as previously described.
  • FIG. 13A is a cross-sectional view of the lever 122 taken along the lines 13 A- 13 A of FIG. 13 also illustrates the aperture 140 A.
  • Cavities 1302 and 1303 are illustrated in FIG. 13A . Cavity 1303 fits over flat portion 1101 of plunger 120 . See, FIG. 11 .
  • FIG. 13B is a perspective view 1300 B which illustrates the underside of the lever 122 of FIG. 13 . Cavity 1303 and wall 1304 of cavity 1303 are illustrated. Flat portion 1101 of plunger 120 fits into cavity 1303 .
  • FIG. 14 is a front view 1400 of the fountain head 119 illustrating flanges 1401 and 1402 .
  • FIG. 14A is a cross-sectional view 1400 A taken along the lines 14 A- 14 A of the fountain head 119 of FIG. 14 .
  • Flange 1402 is snap-fit into place in lever 122 as is best seen in FIG. 3 .
  • Fountain head 119 is made of plastic.
  • Spring 124 is illustrated in FIG. 1 as operable between seat 570 and surface 1106 . See, FIGS. 3, 5C and 11 C.
  • FIG. 3 illustrates valve 121 seated against seat 330 .
  • FIGS. 1-14 are directed toward the first embodiment of the invention. Some of the uses of the first embodiment of the invention are in bathrooms, hotel and motel rooms. The device disclosed is small and convenient for storage on vacations and business trips.
  • FIGS. 15-20 are directed toward the second embodiment of the invention. Use of the second embodiment include kitchen and bar uses. Both embodiments are designed such that the filter sits rearwardly with respect to the faucet so that access to the faucet and the filter is permitted.
  • FIG. 15 correspond generally to the reference numerals used in FIG. 1 such that for example reference numerals 101 and 1501 both indicate filter housings.
  • FIG. 15 is an exploded perspective view 1500 of a second embodiment of the invention.
  • Filter housing 1501 may have, for example, a diameter of 2.40 inches and a length of approximately 3.90 inches.
  • One of the principal differences in the kitchen filter of the second embodiment is that it has only one filtered outlet 1507 A whereas the bathroom unit has two filtered outlets 107 A and 180 .
  • Filters 1513 and 113 may be pre-wrapped 495 using a hot seal method. See, FIGS. 4G and 4H .
  • Adhesive is applied to the filter end caps 1514 , 1515 , then attached to the filter after which the subassembly is inserted into the filter housing. Peripheral seal portions of end caps 1514 , 1515 seal the filter.
  • O-rings 375 , 376 may be used to seal the filter so as to prevent unfiltered water from entering chamber 1750 . See, FIG. 17 .
  • the aerator assembly 1511 and spout 1506 are affixed in the front housing 1503 as previously illustrated.
  • the collar lock 1505 is welded to the front housing 1503 and collar 1504 is permitted to rotate with respect to the collar lock.
  • the screen assembly is inserted into the assembly atop the collar lock.
  • Gate 1518 is slightly dimensionally different than the gate 118 previously described but it functions in the same way as gate 118 .
  • Spacers 1542 and 1543 extend from end cap 1502 and serve to ensure that gate 1518 remains in alignment.
  • Electronic package 112 is the same package used in the first embodiment.
  • Reed switch 135 (or reed relay as it sometimes known) senses the proximity of magnet 1517 and the electronic package measures the total time of flow.
  • a reed switch which is a magnetically coupled device
  • a capacitance based device or a pressure-sensitive device may be used instead.
  • the pressure sensitive device would have to mounted in the closed end of the housing end cap 1502 .
  • Valve 108 illustrated in FIG. 15 is the same valve used in the bathroom filter of the first embodiment.
  • Spacers 1542 , 1543 of the housing end cap 1502 assist in ensuring that the filter subassembly is in place.
  • a gap (unnumbered) exists between the spacer 1543 and the end cap 1514 of the filter. Spacer limits the movement of the filter subassembly such that it cannot move leftwardly too far before engaging the spacers.
  • End plate 1516 is glued or welded to the housing end cap 102 .
  • Housing end cap 102 is glued or welded to the filter housing 1501 .
  • FIG. 16 is a perspective view 1600 of the second embodiment of the water filtration device.
  • FIG. 17 is a cross-sectional view 1700 of the second embodiment of the water filtration device taken along the lines 17 - 17 of FIG. 16 .
  • FIG. 17A is a cross-sectional view 1700 A of the second embodiment of the water filtration device similar to FIG. 17 except the gate 1518 is shown rotated clockwise in the flow condition.
  • Annulus 1701 is illustrated in FIG. 17A . Water resides in this annulus and flow thru filter 1513 into passageway 1529 and out port 1541 impinging upon gate 1518 rotating it clockwise.
  • filter end caps 1514 and 1515 have peripheral end portions (i.e., 1531 and 1530 ) which are seals which seal against the interior diameter of the filter housing 1501 .
  • peripheral end portions i.e., 1531 and 1530
  • optional elastomeric O-ring seals similar to 375 , 376 may be used between the peripheral end seals as illustrated in FIG. 3D .
  • FIG. 18 is a perspective view 1800 of the front housing of the second embodiment.
  • FIG. 18 employs reference numerals like FIG. 4 .
  • FIG. 18A is a cross-sectional view taken along the lines 18 A- 18 A of FIG. 18 .
  • Reference numeral 1801 indicates the wall to which the collar lock 1505 is welded and reference numeral 1804 indicates the floor upon which the collar lock 1804 sits at the time it is welded.
  • Mold recesses 1802 are from the molding process. Groove or recess 1816 receives the seal from the valve 108 . Cavity 1831 receives the valve 108 .
  • stop 1807 A is illustrated which engages ridges 602 on valve 108 .
  • Stop 1807 A is also illustrated in FIG. 18B , a cross-sectional view taken along the lines 18 B- 18 B of FIG. 18 .
  • Tapered bore 1812 is illustrated by the circular lines in FIG. 18A .
  • Bore 1822 includes stepped portions 1813 and 1829 .
  • Inlet 1808 is shown leading to valve cavity 1831 .
  • Outlet 1814 and outlet 1809 are also shown in FIG. 18A .
  • inlet 1808 is connected to outlet 1814 and the water passes through front housing 1503 and is expelled unfiltered.
  • Flow arrow 1870 depicts the path of flow through front housing 1503 .
  • FIG. 18F inlet 1808 is connected to outlet 1809 where it is directed into the filter by inlet 1525 of the filter housing 1501 . See, FIG. 16A a perspective view of a second embodiment of the water filtration device with the valve handle pulled forward.
  • Flow arrow 1871 depicts the path of flow through front housing 1503 and into inlet 1525 of the filter housing.
  • valve cavity 1831 is illustrated as is stop 1807 A and the cross-sectional portion 1807 of the stop. Unfiltered outlet 1814 is also depicted.
  • FIG. 18C is a top view 1800 C of the front housing 1503 of the second embodiment.
  • FIG. 18D is a rear perspective view 1800 D of the front housing of the second embodiment of the water filtration device.
  • FIG. 18D illustrates receptacles 1819 and 1820 of the front housing which engage pins 1528 and 1527 respectively. Mold recesses from the molding process are indicated by reference numerals 1817 , 1818 , 1823 , 1824 and 1825 .
  • Joint 1821 is welded to the filter housing.
  • FIG. 19 is a front perspective view 1900 of the filter housing of the second embodiment of the water filtration device.
  • Surface 1904 engages the corresponding surface on the housing end cap 1502 .
  • Recess 1901 engages the perimeter of the front housing.
  • FIG. 19A is a bottom view 1900 A of the of the filter housing 1501 of the second embodiment of the water filtration device.
  • FIG. 19B is a cross-sectional view 1900 B taken along the lines 19 B- 19 B of FIG. 19A illustrating port 1907 from which filtered water is expelled.
  • FIG. 19C is a cross-sectional view 1900 C taken along the lines 19 C- 19 C of FIG. 19C illustrating passageway 1905 in inlet 1525 of the filter housing 1501 .
  • FIG. 19D is a left side view 1900 D, the open end view, of the filter housing 1501 of the second embodiment of the water filtration device illustrating mold prongs in the end housing. These prongs or ribs 1906 restrict the insertion depth of the filter sub assembly.
  • FIG. 20 is a front side view 2000 of the end cap of the housing 1502 of the second embodiment of the water filtration device. Surface 2007 of the housing end cap engages surface 1904 of the filter housing and is welded or glued thereto.
  • FIG. 20A is a right side view 2000 A of the end cap of FIG. 20 illustrating the closed end 2003 .
  • FIG. 20B is a perspective view 2000 B of the end cap of FIG. 20 illustrating the closed end and spacers 1543 , 1542 .
  • FIG. 20C is a view 2000 C of the left side of the end cap of FIG. 20 illustrating supports 2001 , 2002 and 2010 which restrict the movement of the electronic package in place.
  • FIG. 20D is another perspective view 2000 D of the end cap illustrating the housing 2011 in which the electronic package resides.
  • a prefilter may be wrapped around the filter and sealed using the hot seal method.
  • the left and right end caps with adhesive applied to the contact surfaces thereof are inserted in the filter.
  • Uniform pressure is applied to the left and right filter end caps 114 , 115 , 1514 , 1515 to spread the adhesive and allow it to set.
  • Approximate time for applying pressure is 2-5 seconds.
  • the magnet is installed into the gate under the pressure of a person's finger or a tool such as pliers or the equivalent then hermetically sealed in place.
  • the gate 118 , 1518 is snapped into the hinges with the magnet facing outwardly.
  • Indicia on the left end cap of the filter subassembly is aligned with a mark or other indicia on the filter housing and the filter subassembly is inserted into the filter housing.
  • Indicia on the housing end cap 102 , 1502 is aligned with indicia on the filter housing and inserted therein.
  • the lever is installed by snapping it into place in the valve cavity.
  • the light emitting diode is inserted into and through the aperture 137 .
  • adhesive may be used when installing the diode in the aperture 137 to secure it into position and to ensure that the diode is hermetically sealed.
  • the electronic package is installed into the reservoir in the open end of the housing end cap with the glass reed switch facing inwardly.
  • End plate 116 , 1516 is next snap-fit into place to hermetically seal the electronic package.
  • adhesive may be used around the perimeter of the end plate to ensure a hermetic seal. Or, the end plates may be welded to the housing end caps.
  • the materials which are ultrasonically welded should be amenable to welding such as ABS or other plastics.

Abstract

Single-use long-life faucet mounted water filtration devices are disclosed. A bathroom water filtration device having two outlets for filtered water is disclosed. Additionally, a fountain head is included for use in the bathroom water filtration device. The water filtration device is of unibody construction formed by ultrasonically welding certain parts thereof together. Since the devices disclosed are disposable, no filter replacement or other maintenance is performed. A gate, magnet, sensor and electronics provide an indication of filter performance enabling disposal of the water filtration device and installation of a new device. A kitchen water filtration device is larger than the bathroom device. Both the kitchen and bathroom water filtration devices are small and are mounted behind the faucet connection so as to facilitate full utilization of the sink or wash basin.

Description

  • This patent application claims priority of provisional patent application Ser. No. 60/438,457 filed Jan. 8, 2003 and provisional patent application No. 60/409,042 filed Sep. 9, 2002.
  • FIELD OF INVENTION
  • The field of the invention is water filtration devices.
  • BACKGROUND OF THE INVENTION
  • The demand for pure water continues to grow rapidly due to increasing concerns about the quality and safety of tap water, the popularity of water as a beverage (instead of soda and alcohol) and the growing awareness that most people do not drink enough water as prescribed by the medical community.
  • Water is supplied from municipal water systems (many of which are aging), private water systems and wells in the United States. Frequently, this water has poor taste, particulates, unwanted odors and in many cases contaminants contained in it. Municipal water is commonly treated with chlorine to eliminate bacterial contaminants. Chlorine adds what most people feel is an unpleasant taste and odor. Water conditions vary greatly according to the geographic area and therefore travelers may also experience these problems as they visit hotel and motel rooms around the country. It is desirous to remove bad tastes, odors, sediment and contaminants before ingesting the water or using it for cooking food.
  • Water treatment devices of many varieties have proven effective in accomplishing water purification. Generally these devices work through chemical and mechanical actions that remove contaminants and impurities from water. These filters have a finite life. Sediment can eventually clog a filter and chemical reactions realized through adsorption (carbon media) and ion exchange (cation resin) have a limited capacity.
  • U.S. Pat. No. 5,989,425 to Yonezawa et al. discloses a multi-way valve and water purifier. The multi-way valve is disclosed as a small-sized one which may be used with a small-sized water purifier. The device disclosed in the '425 patent is a faucet mounted filter and it is designed for removing and exchanging valve bodies.
  • U.S. Pat. No. 5,017,286 to Heiligman and U.S. Pat. No. Re. 35667 to Heiligman disclose a vertical filter enclosed in a housing and the housing is supported by a duct. The vertical filter may be permanently secured to the filter by hot melt adhesive which renders the filter non-removable. Further, the vertical filter may be pre-wrapped with a porous paper pre-filter. The device disclosed in the '286 patent is a faucet mounted filter. If the filter is glued to the filter housing the filter housing must be removed and discarded together with the filter. A new filter housing (and filter) must then be mounted onto the duct of the diverter valve each time the filter housing is replaced. This involves time consuming labor in the case of each embodiment disclosed in the '286 patent. In one embodiment of the '286 patent, the filter housing is secured by a retaining clip. In another embodiment disclosed in the '286 patent, the male duct of the filter housing is press-fit into an opening in the diverter valve. Alternatively, the male duct of the filter housing may be affixed to the diverter valve by a U-clip, cotter pin or the like. The filter housing as disclosed in the '286 patent is disclosed as residing vertically in front of the faucet. In short, it is not a simple matter to change the filter housing of the device disclosed in the '286 patent.
  • U.S. Pat. No. 5,527,451 to Hembree et al. discloses a faucet mounted filter utilizing a replacement filter cartridge. The replacement filter cartridge resides within a larger rotatable housing which channels water flow either into the filter or through the diverter valve assembly. Hembree et al. also discloses a very complicated flow totalization mechanism which includes porting water to a turbine driven mechanism prior to filtering thereof.
  • U.S. Pat. No. 6,571,960 B2 to Williamson et al. discloses a faucet-mounted water filtration device whose filter housing includes a valve therein and whose filter housing extends longitudinally rearwardly from the point of attachment to the faucet. The filters in Williamson et al. are replaceable filter cartridges.
  • U.S. Pat. No. 6,284,129 B1 to Giordano et al. discloses a rotating a magnetized impeller actuating a reed switch.
  • In each of the foregoing disclosures, the devices disclosed therein are designed for disassembly of some sort as a matter of maintenance of the filtration device. This requires labor and attendant time. Complex flow totalization mechanisms such as the one disclosed in Hembree et al. '451 present maintenance problems. The need to change the filter and/or the filter housing and/or the diverter valve all require labor and attendant time.
  • In each of the foregoing disclosures, the devices disclosed therein are designed for disassembly of some sort as a matter of maintenance of the filtration device. Filtration devices customarily employ replaceable filter cartridges of some type. These arrangements require either a coupling arrangement for attaching and detaching a replacement filter cartridge or a large chamber to entirely enclose the replacement filter cartridge. Both approaches require additional components and materials that add to the manufactured cost and complexity of the device. Furthermore, each of the foregoing disclosures, by requiring the replacement of the filter element, cause great inconvenience to the user by having him search for and procure replacement filter elements at considerable cost. This arrangement, while lucrative for the manufacturer, is a well documented nuisance for the consumer. In addition, most of the devices in the related art, owing to their need for easy access and maintenance are relatively large and obtrusive partially blocking the sink basin. Finally, the devices noted above and most others despite the availability of high capacity filter media are not designed for long life so as to maximize the frequency with which users must purchase replacement filter elements.
  • It is therefore desirable to have a small faucet-mounted water filtration device which is a single-use, long-life water filtration device which includes an indicator of filter performance. By single use it is meant that it is discarded when its performance indicator reveals that the efficacy of the filter has been diminished. It is also desirable to have the filter housing of the water filtration device mounted behind the connection to the faucet to enable full access to the sink basin beneath the faucet.
  • SUMMARY OF THE INVENTION
  • A single-use faucet-mounted water filtration device is provided. The device is of uni-body construction and has no removable or replaceable parts yet provides long life operation. This arrangement makes the device more convenient to use compared with other devices that require frequent replacement of filter cartridges. The device is constructed with a minimum of components making it relatively small in size and less costly to manufacture. While compact, the device is able to hold enough filter media to allow for long life operation. The life of the water filtration device is dependent upon the type of filter media used, sizing and geometry of the filter media, and the sizing and geometry of water flow paths. For instance, water filtration devices having a useful life of 300 gallons or more can be made utilizing the teachings of the instant invention. Water filtration devices having useful lives smaller than 300 gallons may also be made utilizing the teachings of the instant invention. Performance indications as a function of integrated flow are indicated by a light emitting diode.
  • The main housing of the devices resides beneath the faucet neck and rearward of the water discharge point thus not obstructing the sink basin. A single-use device is provided for use in a kitchen sink and a device is provided for use in a bathroom sink. Unlike devices in the related art the bathroom embodiment of the single-use faucet filter is scaled to the small size of bathroom sinks and therefore practical for use in bathrooms. The bathroom filter device allows residential users to have the benefit of filtered water in close proximity to the bedroom avoiding the inconvenience of going to a kitchen sink for water during the night. In addition, because the bathroom device is small and disposable it may be taken with a traveler and installed in a hotel or motel room. Further, as travelers readily discern the differences between water and its tastes from one place to another it is highly desirable that the water filter be portable.
  • The invention includes a front housing connectable to a water faucet and a filter housing having an inlet and an outlet. An end cap of the filter housing completes the filter housing. The front housing is non-removably affixed to the filter housing and the water filter is non-removably contained within the water filter housing. The water filter housing includes a chamber in communication with the water filter. The filter is preferably activated carbon and includes a filter pre-wrap. Other filter media may be used. The outlet resides in the chamber. Alternatively, a second outlet may also reside in the chamber in the embodiment of the bathroom filter.
  • The single use water filtration device is small. The embodiment designed for bathroom use has a filter diameter less than or equal to 1.6 inches. The embodiment designed for kitchen use has a filter diameter less than or equal to 2.2 inches. The water filtration devices disclosed herein, namely the bathroom and kitchen embodiments, reside substantially rearwardly with respect to the water faucet. Other diameters and sizes of the water filtration devices disclosed herein may be made using the teachings hereof.
  • The filter includes ends thereof each secured to an end cap. The end caps have peripheral seal portions which seal against the interior of the filter housing.
  • A housing end cap is ultrasonically welded to the filter housing. Other welding methods such as microwave, radio frequency (RF), heat and induction welding may be employed to weld various portions of the water filtration devices disclosed herein together.
  • The second outlet includes a valve seat and a valve interposed in the filter housing being operable against the valve seat of the second outlet for controlling the flow out of the second outlet. The valve includes a plunger having a foot and an elastomeric ball valve or boot residing over the foot. The foot of the plunger and the elastomeric ball valve reside within the housing. A handle is pivotally connected to the end cap of the filter housing and engages the plunger such that when the plunger is depressed the elastomeric ball valve moves inwardly toward the center of the housing and away from the seat of the second outlet. A fountain head is rotatably secured in the plunger and lever for communication with a passageway in the plunger.
  • A spring is interposed between the plunger and the filter housing urging the elastomeric ball valve against the valve seat of the second outlet.
  • A front housing having first and second passageways is non-removably affixed to the filter housing. The front housing includes a directional valve residing within the front housing and movable therein for directing water into the filter for filtering or through the front housing for direct use of the unfiltered water. The filter housing includes three protrusions which interengage corresponding apertures in the front housing. The front housing also includes a continuous periphery welded to the filter housing by one of the aforementioned methods. The filter housing includes a recess whose shape is the reciprocal of the continuous periphery of the front housing and the continuous periphery of the front housing fits snugly within the recess in the filter housing. The end cap of the filter housing is welded to the filter housing. Three parts or pieces, the filter housing, the front housing and the end cap of the filter housing are welded together to provide a unibody or integral construction.
  • A gate having a magnet affixed therein resides in the chamber and swings between a first position and a second position. Spacers extending from the end cap serve to ensure that the gate remains in alignment with respect to the earth. These spacers also serve to ensure that the filter subassembly remains in proper position. The first end cap of the filter includes a first hinge member and the gate includes a second hinge member which coacts with the first hinge member to enable the gate to swing between first and second positions. A gate position sensor resides in a dry portion of the end cap of the water filter housing and is actuated when the gate swings to the second position and the magnet is in proximity to the sensor.
  • An electronic package and a light emitting diode reside in the dry portion of the end cap of the water filter housing. The electronic package outputs a signal to the light emitting diode which indicates the performance of the water filtration device. The electronic package outputs three discrete signals to the light emitting diode to indicate three performance levels of the filter.
  • A method of making a water filtration device is also disclosed and comprises the steps of: attaching end caps to the filter; inserting the filter within a filter housing; aligning the filter within the filter housing; inserting a portion of a gate into corresponding receptacles on one end of one of the end caps previously affixed to the filter; inserting a sensor and electronic package into an open end of a filter housing end cap; affixing the filter housing end cap to the filter housing forming a chamber between a closed end of the filter housing end cap and the one end of one of the end caps; and, affixing a front housing to the filter housing. The step of attaching end caps to said filter may be performed with adhesive. And, the steps of affixing the end cap of the filter housing, affixing the filter housing end cap to the filter housing and affixing the front housing to the filter housing may be performed by an ultrasonic welding process or one of the other welding processes identified herein.
  • It is an object of the present invention to provide a water filtration device which is disposable and provides an indication as to when the filter should be disposed.
  • It is a further object of the present invention to provide a water filtration device which is small in size and which resides substantially rearwardly with respect to the faucet to which it is mounted.
  • It is a further object of the present invention to provide a water filtration device which is self-contained and which does not require maintenance and, in fact, which cannot be maintained because the parts thereof are non-removably affixed together or non-removably contained therein.
  • It is an object of the present invention to provide a water filtration device at reasonable cost which is disposable and which is faucet mounted.
  • It is an object of the present invention to provide a water filtration device which includes a swinging gate having a magnet therein which in combination with a sensor and an electronic package provides a visual indication as to the status or performance of the filter.
  • It is an object of the present invention to provide a water filtration device which includes two filtered outlets.
  • It is an object of the present invention to provide a water filtration device which includes a valved outlet with the valve operated by a lever.
  • It is an object of the present invention to provide a water filtration device which includes an outlet having a rotatably mounted fountain head.
  • It is an object of the present invention to provide a water filtration device which includes a lever actuated fountain.
  • These and additional objects will become apparent when reference is made to the Brief Description of the Drawings, Description of the Invention and Claims which follow hereinbelow.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is an exploded assembly view of a first embodiment of the water filtration device.
  • FIG. 2 is a perspective view of a first embodiment of the water filtration device.
  • FIG. 2A is a perspective view of a first embodiment of the water filtration device with the handle of the valve pulled forward.
  • FIG. 3 is a cross-sectional view of the first embodiment of the water filtration device taken along the lines 3-3 of FIG. 2. In FIG. 3 the filter is not operating as no water is being directed into it.
  • FIG. 3A is an enlargement of a portion of FIG. 3.
  • FIG. 3B is a cross-sectional view of the first embodiment of the water filtration device with the fountain lever depressed and with water flowing through the filter.
  • FIG. 3C is an enlargement of a portion of FIG. 3B.
  • FIG. 3D is a cross-sectional view of the first embodiment of the water filtration device similar to FIG. 3 with an O-ring used as an additional seal for the filter subassembly.
  • FIG. 4 is an enlargement of the front housing of the first embodiment of the water filtration device.
  • FIG. 4A is a cross-sectional view of the front housing taken along the lines 4A-4A of FIG. 4.
  • FIG. 4B is a cross-sectional view of the front housing taken along the lines 4B-4B of FIG. 4.
  • FIG. 4C is a top view of the front housing of the first embodiment.
  • FIG. 4D is an enlarged rear perspective view of the front housing of the first embodiment.
  • FIG. 4E is a cross-sectional view of the rotatable collar (faucet adapter) and the lock collar which is secured to the front housing.
  • FIG. 4F is a cross-sectional view of the aerator mounted into the front housing.
  • FIG. 4G is a cross-sectional view taken along the lines 4G-4G of FIG. 2 with the flow diverter valve inserted in the front housing in a first position, bypass position.
  • FIG. 4H is a cross-sectional view taken along the lines 4H-4H of FIG. 2A with the flow diverter valve inserted in the front housing in a second position which directs flow into the filter.
  • FIG. 5 is a front perspective view of the filter housing of the first embodiment of the water filtration device.
  • FIG. 5A is a front view of the filter housing of the first embodiment of the water filtration device.
  • FIG. 5B is a cross-sectional view of the filter housing taken along the lines 5B-5B of FIG. 5A.
  • FIG. 5C is a cross-sectional view of the filter housing taken along the lines 5C-5C of FIG. 5A.
  • FIG. 5D is a cross-sectional view of the filter housing taken along the lines 5D-5D of FIG. 5A.
  • FIG. 5E is a bottom view of the filter housing of the first embodiment of the water filtration device.
  • FIG. 5F is a left side view, the open end view, of the filter housing of the first embodiment of the water filtration device.
  • FIG. 6 is a perspective view of the valve and its handle which are used in both the first embodiment and the second embodiment of the water filtration device.
  • FIG. 6A is a perspective view of the other side of the valve and its handle of FIG. 6.
  • FIG. 7 is a perspective view of the electronic package (electric circuit), sensor and light emitting diode used in the first and second embodiments of the water filtration device.
  • FIG. 7A is a side view of the electronic package (electric circuit), sensor and light emitting diode package of FIG. 7.
  • FIG. 8 is a side view of the housing end cap.
  • FIG. 8A is a perspective view of the other side, i.e., the wetted side, of the housing end cap illustrated in FIG. 8.
  • FIG. 9 is a front view of the gate of the first embodiment.
  • FIG. 9A is a cross-sectional view taken along the lines 9A-9A of FIG. 9.
  • FIG. 10 is a front view of the left end cap of the filter.
  • FIG. 10A is cross-sectional view of the left end cap of the filter taken along the lines 10A-10A of FIG. 10.
  • FIG. 11 is a perspective view of the plunger used in conjunction with the lever and elastomeric ball valve.
  • FIG. 11A is a another perspective view of the plunger used in conjunction with the lever and elastomeric ball valve.
  • FIG. 11B is a top view of the plunger.
  • FIG. 11C is a cross-sectional view of the plunger taken along the lines 11C-11C of FIG. 11B.
  • FIG. 11D is a cross-sectional view taken along the lines 11D-11D of FIG. 11B.
  • FIG. 12 is a front view of the ball valve.
  • FIG. 12A is a cross-sectional view taken along the lines 12A-12A of FIG. 12.
  • FIG. 13 is a top view of the lever used to operate the plunger of the first embodiment.
  • FIG. 13A is a cross-sectional view of the lever taken along the lines 13A-13A of FIG. 13.
  • FIG. 13B is a perspective view of the underside of the lever of FIG. 13.
  • FIG. 14 is a front view of the fountain head.
  • FIG. 14A is a cross-sectional view taken along the lines 14A-14A of the fountain head of FIG. 14.
  • FIG. 15 is an exploded perspective view of a second embodiment of the invention.
  • FIG. 16 is a perspective view of a second embodiment of the water filtration device.
  • FIG. 16A is a perspective view of a second embodiment of the water filtration device with the valve handle pulled forward.
  • FIG. 17 is a cross-sectional view of the second embodiment of the water filtration device taken along the lines 17-17 of FIG. 16.
  • FIG. 17A is a cross-sectional view of the second embodiment of the water filtration device similar to FIG. 17 except the gate is shown rotated clockwise in the flow condition.
  • FIG. 18 is a perspective view of the front housing of the second embodiment.
  • FIG. 18A is a cross-sectional view taken along the lines 18A-18A of FIG. 18.
  • FIG. 18B is a cross-sectional view taken along the lines 18B-19B of FIG. 18.
  • FIG. 18C is a top view of the front housing of the second embodiment.
  • FIG. 18D is a rear perspective view of the front housing of the second embodiment of the water filtration device.
  • FIG. 18E is a cross-sectional taken along the lines 18E-18E of FIG. 16 with the flow diverter valve inserted in the front housing in a first position, bypass position.
  • FIG. 18F is a cross-sectional view taken along the lines 18F-18F of FIG. 16A with the flow diverter valve inserted in the front housing in a second position which directs flow into the filter.
  • FIG. 19 is a front perspective view of the filter housing of the second embodiment of the water filtration device.
  • FIG. 19A is a bottom view of the of the filter housing of the second embodiment of the water filtration device.
  • FIG. 19B is a cross-sectional view taken along the lines 19B-19B of FIG. 19A.
  • FIG. 19C is a cross-sectional view taken along the lines 19C-19C of FIG. 19C.
  • FIG. 19D is a left side view, the open end view, of the filter housing of the second embodiment of the water filtration device.
  • FIG. 20 is a front side view of the end cap of the housing of the second embodiment of the water filtration device.
  • FIG. 20A is a right side view of the end cap of FIG. 20.
  • FIG. 20B is a perspective view of the end cap of FIG. 20.
  • FIG. 20C is a view of the left side of the end cap of FIG. 20.
  • FIG. 20D is another perspective view of the end cap.
  • A better understanding of the drawings will be had when reference is made to the Description of the Invention and Claims which follow hereinbelow.
  • DESCRIPTION OF THE INVENTION
  • Referring to FIG. 1, an exploded assembly view of a first embodiment of the water filtration device 100, the various components of the single-use faucet mounted water filter are shown. Filter 113 is illustrated having a longitudinal bore 129 therethrough. Filter 113 is illustrated without a filter pre-wrap in this view but such a pre-wrap 495 is specifically within the scope of this invention and is illustrated in FIGS. 4G and 4H. The filter is preferably a carbon block but may be a fiber bundle or granular activated carbon. Further, the carbon block may include bacteriastic materials, ion exchange resins and zeolites to assist in its filtration activity. End caps 114 and 115 are affixed to said filter with a hot melt adhesive applied to the entire mating surfaces of end caps 114 and 115 including but not limited to the dowel portions thereof such as dowel 130A on right end cap 130. Once filter 113 is affixed to end caps of filter 114, 115, the subassembly is inserted into the filter housing 101. End caps 114, 115 include peripheral seal portions which seal annulus 301. See FIG. 3 for example. O- rings 375, 376 ensure that water entering annulus 301 flow through filter 113 and does not bypass the end caps 114, 115 and migrate into chamber 350. See, FIG. 3D. To ensure that the subassembly is properly oriented, gate hinges 132, 132A must be aligned in relation to a mark 160 on the filter housing as the subassembly is inserted into the filter housing 101. Gate hinges 132, 132A are properly positioned when their axis is parallel to the earth or parallel to a tangent of the earth's surface.
  • Referring to FIG. 5F, the left side view (open end view) of the filter housing 101 of the first embodiment of the water filtration device, the concave right side wall 508 of the filter housing 101 is illustrated along with molded ribs 515. In this the first embodiment the diameter of the filter housing 101 is approximately 1.6 inches and the length of the filter housing as viewed, for example, in FIGS. 5 and 5A, is approximately 4.2 inches. Other dimensions may be utilized in the construction of water filtration devices as taught herein without departing from the spirit and scope of the invention. When the filter subassembly is inserted into the filter housing the right end cap abuts ribs 515.
  • Gate 118 is rotatably affixed to gate hinges 132, 132A by inserting prongs or knobs 133, 133A in the hinges. Knobs or prongs 133, 133A are snap-fit into apertures in the hinges 132, 132A enabling rotation of the gate 118 when water pushes against it as it exits the filter. As will be explained in more detail hereinafter, gate 118 swings (rotates) in a clockwise direction about its axis of rotation (see FIGS. 3B and 3C) upon the application of pressure caused by water flow through the filter 113 and the longitudinal bore 129 therein.
  • Referring to FIGS. 1 and 3, gate 118 includes a magnet 117 which is press fit into a recess 134 in the gate and hermetically sealed with either hot melt adhesive or potting compound. FIG. 3 is a cross-sectional view 300 of the first embodiment of the water filtration device taken along the lines 3-3 of FIG. 2. Presence or absence of magnet 117 is sensed by reed switch (reed relay) 135. Housing end cap 102 includes spacers 142 and 143. See FIG. 8A, a perspective view of the end cap to best view the spacer 142 which is not well illustrated in the exploded assembly view of FIG. 1. Spacers 142, 143 assist in correctly spacing the housing end cap 102 with respect to the left end cap 114 of the filter. Once housing end cap 102 is inserted into the filter housing 101, spacers 142, 143 ensure that the filter subassembly comprising the filter 113, left end cap 114 and right end cap 115 does not migrate leftwardly (See FIG. 3) too far and remains in proximity to the mold ribs 515 of the interior of the housing. Housing end cap 102 includes a tapered portion 190 for insertion into the filter housing 101. A chamber is formed between the end cap 114 and the closed end 803A of the housing end cap 102. See, FIG. 3. Water is expelled from passageway 141 in the left end cap 114 of the filter housing and exerts a force against gate 118 causing it to rotate in a clockwise direction. As gate 118 rotates in the clockwise direction the magnet 117 is urged toward the reed switch 135 (reed relay) causing it to effectively close which starts the electronic timer within electronic package 112 to continuously measure the time when the magnet 117 is in proximity to the switch. The electronic package (electric circuit or integrated circuit) measures the cumulative time of flow through the filter and outputs signals to the light emitting diode (LED) indicating filter performance. The LED indicates three colors representative of cumulative filter usage one of which indicates that the water filtration device should be discarded. The electric circuit outputs three discrete signals to the light emitting diode.
  • The electronic package is secured in a dry well 170 which in turn is secured and closed by end plate 116. After the housing end cap 102 is installed it is welded to the filter housing 101. The end plate 116 is glued or ultrasonically welded to the housing end cap 102. That is, the housing end cap 102 is welded to the filter housing and the end plate 116 is welded or glued to the housing end cap 102. Reference numeral 139 represents the raised portions of the end plate 116 which are ultrasonically welded or glued to the housing end cap 102.
  • Referring to FIG. 3 again, reference numerals 302, 303, 130, 131 signify peripheral edges or portions of the end caps 114, 115 of the filter which slidingly engage and seal against the interior walls of the filter housing 101. Referring to FIG. 3D, elastomeric seal 375 acts as an additional optional seal which resides between peripheral edge portions 302 and 131 and elastomeric seal 376 acts as an additional optional seal which resides between peripheral edge portions 303 and 130.
  • Still referring to FIG. 1, aperture 137 permits light emitting diode 136 which stems from the electronic package 112 to pass therethrough. A small amount of potting compound may be used around the light emitting diode to seal any space between the diode and the aperture 137 when the light emitting diode is installed in place. The electronic package 112 and the substrate upon which the electronics are mounted are housed in a dry space in the housing end cap 102.
  • Referring to FIGS. 1 and 5, the filter housing 101 including its inlet 125, filtered outlet 107A, and filtered outlet 180 are illustrated. Filtered outlet 107A always expels filtered water whenever water enters the filter housing inlet 125. See, FIG. 4H. Inlet 125 is generally cylindrically shaped and includes a recess 126 for receiving an O-ring seal 502 and a passageway 505 for conducting unfiltered water to the interior of the filter housing so that it can be filtered by filter 113. Filter 113 is a carbon block filter and it is necessary that the water to be filtered have a certain residence time in contact with the filter so that impurities therein can be removed.
  • The preferred materials of the front housing 103, filter housing 101 and housing end cap 102 are ABS (acrylonitrile butadiene styrene) plastic although other plastics may be used. The preferred adhesive to be used for securing the end caps 114, 115 to the filter is a hot melt adhesive. The gate material is HDPE (high density polyethylene). End caps 114, 115 are also HDPE and the material used for sealing. Lever 122 is preferably an acetyl material.
  • FIG. 5 is a front perspective view 500 of the filter housing 101 of the first embodiment of the water filtration device, i.e., a bathroom filter. FIG. 5 illustrates an inlet surface 504 adapted to receive a corresponding mating surface 190 from the housing end cap 102. See, FIG. 1 to identify the corresponding mating surface 190 on the housing end cap 102.
  • Referring again to FIG. 5, the filter housing 101 includes a recessed region 501 for receiving the front housing 103 as best seen in FIGS. 1, 2 and 4G. Engagement pins 127, 128 assist in positioning the front housing 103 with respect to the recessed region 501 for ultrasonic welding thereto. It is the ultrasonic welding of the front housing 103 to the filter housing which secures the parts together and makes them into an integral unit.
  • Pins 127, 128 fit snugly into corresponding receptacles 420, 419 in the front housing. Referring to FIG. 4D, a rear perspective view 400D of the front housing of the first embodiment (bathroom filter) is illustrated along with the receptacles 420, 419. Reference numerals 415, 417 and 418 indicate mold cavities which are formed as a part of the molding process of the front housing 103. Joint 421 is welded to the filter housing 101. Further, referring to FIGS. 4G and 5, O-ring seal 502 which resides in recess 126 mates with cylindrical recess 410 in the front housing 103 as illustrated in FIG. 4D to prevent leakage of water as it is being directed into the filter housing as will be explained hereinbelow.
  • FIG. 5A is a front view 500A of the filter housing 101 of the first embodiment of the water filtration device. The right end 508 is closed and is convexly shaped when viewed from the outside of the filter housing. Viewing the interior of the right end 508 as in FIG. 5F, it is shaped concavely. During assembly of the device, the water filter 113 with end caps attached thereto is inserted from the left side, the open side, of the filter housing 101.
  • FIG. 5B is a cross-sectional view 500B of the filter housing taken along the lines 5B-5B of FIG. 5A. FIG. 5B provides a good illustration of recess 126 in inlet 125 and of pin 128. Outlets 180 and 107A are also illustrated in FIG. 5B.
  • FIG. 5C is a cross-sectional view 500C of the filter housing taken along the lines 5C-5C of FIG. 5A. Outlet port 180 is illustrated in cross-section as having two diametrical sections 503 and 506. Likewise, outlet port 107A is illustrated as having two diametrical sections 519 and 507.
  • FIG. 5D is a cross-sectional view 500D of the filter housing taken along the lines 5D-5D of FIG. 5A. FIG. 5D illustrates the recessed region 501 in filter housing 101. Also illustrated in FIG. 5D is the inlet 125 having passageway 505 therein.
  • FIG. 5E is a bottom view 500E of the filter housing of the first embodiment of the water filtration device illustrating diametrical portions 507, 519 of outlet 107A. FIG. 5E illustrates that outlet 107A resides generally forwardly in the filter housing. Outlet 107A includes spout 107 which is affixed through an ultrasonic weld or by gluing same to the filter housing 101. See, FIG. 1.
  • FIG. 2 is a perspective view 200 of a first embodiment of the water filtration device. Referring to FIGS. 1, 2, 4, and 4E, collar lock 105 is inserted within collar 104 and is welded to surface 401 of front housing 103. FIG. 4 is an enlargement 400 of the front housing of the first embodiment of the water filtration device. FIG. 4E is a cross-sectional view 400E of the collar 104, collar lock 105 and screen 110. Screen 110 includes an elastomeric generally circular periphery and a convexly shaped screen portion 110A. Collar 104 may rotate with respect to collar lock 105 in the connection and disconnection process with a faucet. The faucet (not shown) seals on the elastomeric portion of the screen 110. Screen 110 assists in removing large particulate matter.
  • Referring still to FIG. 2, front housing 103 is illustrated in its assembled condition welded to the filter housing 101. Valve and valve handle 108 are illustrated in the first or bypass position. FIG. 4G is a cross-sectional view 400G taken along the lines 4G-4G of FIG. 2 with the flow diverter valve 108 inserted in the front housing in a first position, bypass position. Flow arrow 470 indicates the path flow will take through the front housing when the water bypasses the filter. FIG. 4H is a cross-sectional view 400H taken along the lines 4H-4H of FIG. 2A with the flow diverter valve 108 inserted in the front housing in a second position which directs flow into the filter. Flow arrow 471 indicates the path of flow through the front housing when the diverter valve 108 is rotated counterclockwise when viewing FIG. 4H to a second position. Referring to FIG. 2A, valve and valve handle 108 are pulled forward to the second position when it is desired to filter the water.
  • Referring again to FIGS. 4G and H, elastomeric seal 450 is illustrated as sealing passageways 603 and 610 in valve 108. Passageway 610 is formed by wall 611 and passageway 603 is formed by wall 605 which is horn shaped. See, FIG. 6, a perspective view 600 of the valve and its handle 108 which are used in both the first embodiment and the second embodiment of the water filtration device. The handle portion of the valve includes an insert 109 which may glued to a corresponding recess 109A in the handle. See, FIG. 1.
  • FIG. 4A is a cross-sectional view 400A taken along the lines 4A-4A of FIG. 4 illustrating the generally cylindrical wall 401 to which the collar lock 105 is welded. FIG. 4E is a cross-sectional view 400E illustrating the collar lock 105 secured to the wall 401 with the collar 104 being rotatable and movable slightly vertically for engagement with a faucet. Screen 110 is also illustrated in FIG. 4A.
  • Referring again to FIG. 4A, valve 108 is not shown therein so as to view the valve stop 407 which controls the rotation of the valve between its first (bypass position) and its second (filter) position. Valve cavity 430 is tapered as it extends inwardly as indicated by circular lines 412 and 431. See, FIGS. 4A and 4B. Ports 403 and 408 join to form a water inlet to the valve cavity 430. Water outlet 409 conveys water to be filtered when the front housing is nonremovably affixed to the filter housing 101 and the valve 108 is in its second position. FIG. 4B is a cross-sectional view 400B taken along the lines 4B-4B of FIG. 4 and also illustrates the taper of valve cavity 430.
  • Referring again to FIGS. 4A and 4B, recess 416 is illustrated for receiving a seal 640 on the valve 108 illustrated in FIG. 6. Bypass port or passageway 414 is illustrated in FIGS. 4A and 4B. Stop 407 is also illustrated in FIG. 4B as is recess 410 for receiving inlet 125 of the filter housing 101. Referring to FIG. 4A mold aperture 415 from the molding process is illustrated in cross section. FIG. 4C is a top view 400C of the front housing 103 of the first embodiment and also illustrates the ports 403 and 408.
  • FIG. 4 is an enlargement 400 of the front housing 103 of the first embodiment of the water filtration device illustrating wall 401 to which the collar lock 105 is welded. Ports. 403, 408 in floor 404 are shown in the top of the housing as are mold openings 402. Recess 416 in valve cavity 431 is shown as is rim 406 which is welded to the filter housing 101. Recess 416 receives seal 640 on valve 108 so as to prevent leakage about valve 108.
  • Referring again to FIGS. 1 and 4A, bottom portion 103A of the front housing is illustrated along with bore 422 having stepped portions 429 and 413. Bore 422 receives aerator assembly 111/111A and spout 106 secures the aerator assembly in place as it is welded to the bottom portion 103A of the housing 103. See, FIG. 4F, a cross-sectional view 400F of the aerator assembly 111/111A mounted into the front housing.
  • Referring to FIGS. 3-3D, reference numerals 302, 303, 131, and 130 indicate sliding engagement of the filter end caps 114, 115 with the filter housing 101. Referring again to FIGS. 1 and 3, second outlet 180 in the filter housing 101 is disclosed. Alignment mark 160 is also illustrated well in FIG. 1 and it is this mark which is used during assembly to ensure that the left filter end cap 114 and hinges 132/132A are positioned such that the axis of the hinges are parallel to the earth enabling gate 118 to swing freely upon the application of pressure thereto and not to bind. Plunger 120 having a passageway 120A therein fits somewhat snugly within second outlet 180 and is slidingly movable therein. Lever 122 resides in engagement with the plunger 120 such that the plunger 120 and lever 122 move together. Referring to FIG. 2, lever 122 is hinged and pivotal on prongs or protrusions 138 of the housing end cap 102. Like lever 108, lever 122 has a decorative insert 123 which resides in a corresponding recess. Fountain head 119 resides in and through passageway 122A in lever 122. Fountain 119 includes a passageway 119A in communication with passageway 120A in plunger 120. Passageway 120A is exposed to fluid under pressure in chamber 350 when the plunger is depressed by lever 122.
  • Plunger 120 includes a shoe portion 1104. FIG. 11 is a perspective view 1100 of the plunger 120 used in conjunction with the lever 122 and elastomeric ball valve 121. Plunger 120 includes a cylindrical portion 1103 and a shaft 1105 with a shoe 1104 on the end thereof. A flat extending portion 1101 of the plunger resides against a corresponding surface of the lever 122. A taper 1102 leads to passageway 120A.
  • FIG. 11A is a another perspective view 1100A of the bottom side of the plunger 120 used in conjunction with the lever 122 and elastomeric ball valve 121. Contoured side edge portion 1150 of plunger 120 engages lever 122. Passageway 120A and bottom side 1106 of the flat extending portion 1101 are best viewed in FIG. 11A. Spring 124 is operable between the bottom side 1106 of plunger and a lip 570 of the filter housing. See FIG. 3, a cross-sectional view 300 of the first embodiment of the water filtration device taken along the lines 3-3 of FIG. 2. In FIG. 3, the filter is not operating meaning that the diverter valve 108 is in the bypass (first) position.
  • FIG. 11B is a top view 1100B of the plunger 120 illustrating the passageway 120A. FIG. 11C is a cross-sectional view 1100C of the plunger 120 taken along the lines 11C-11C of FIG. 11B. FIG. 11D is a cross-sectional view 1100D taken along the lines 11D-11D of FIG. 11B.
  • FIG. 12 is a front view 1200 of the ball valve 121. FIG. 12A is a cross sectional view 1200A taken along the lines 12A-12A of FIG. 12. Shoe 1104 is covered by elastomeric valve 121 which includes a cavity which is substantially reciprocally shaped to the shape of the shoe. Elastomeric valve of boot 121 includes a surface 1202 which engages the interior of the filter housing around passageway 506. See, FIGS. 5C and 3.
  • FIG. 3A is an enlargement 300A of a portion of FIG. 3 illustrating the valve 121 engaged with the inner wall of housing 101. Spring 124 is operable between filter housing 101 and plunger 120 and urges the plunger and the lever upwardly when viewing FIGS. 3 and 3A.
  • Still referring to FIG. 3, an annular space 301 between the filter 113 and the filter housing 101 is illustrated. Water occupies this annular space 301 during operation of the filter. Water resides in this annulus and flows through filter 113 into passageway 129 and out port 141 impinging upon gate 118 rotating it clockwise. When the water filtration device of the first embodiment is operable, water will be expelled from both outlets 107A and 180 if lever 122 is depressed. If the lever is not depressed then elastomeric valve 121 is seated against the curved inner surface of the filter housing 101 and water will be expelled just from the outlet 107A. Valve 121 is preferably elastomeric but may be made of other materials such as metal. Similarly, the filter housing may be made of metal if desired and the valve can be made of metal as well. FIG. 3 illustrates spacer 142 extending from the closed end 803A of housing end cap 102 near the filter left end cap 114. FIG. 8 is a side view 800 of housing end cap 102. Closed end 803 is a wall or boundary between the wetted chamber 350 and the electronic package 112 and sensor 135. Guide ribs 801, 802 and 810 enable placement of the generally-rectangularly shaped electronic package within the drywell 811 of the housing end cap 102. End plate 116 fits over the opening 811 of the end cap and is either welded or glued 139 to the end cap for hermetic sealing thereof. During assembly the light emitting diode 136 is carefully placed within the aperture 137 first followed by the electronic package 112 which is placed within opening 811. FIG. 8A is a perspective view 800A of the other side, i.e., the wetted side, of the end illustrated in FIG. 8. Sloped surface 190 which is welded to filter housing 101 is illustrated in FIG. 8A.
  • FIG. 3B is a cross-sectional view 300B of the first embodiment of the water filtration device with the fountain lever 122 depressed and valve 121 off its seat. It will be noticed that plunger 120 bends slightly when lever 122 is depressed. This bending tends to seal the passageway denoted by reference numeral 506. Gate 118 is shown rotated clockwise due to water flow out of passageway 141. In this position, gate 118 and magnet 117 are in proximity to reed switch 135. FIG. 3C is an enlargement 300C of a portion of FIG. 3B and illustrates the flow path 391 of water past valve 121, through passageway 120A of plunger 120 and through passageway 199A of fountain 119. It will be noticed in FIGS. 3, 3A, 3B and 3C that outlet 107A is not shown therein as it is located fore (ahead) with respect to the cross-section of these drawing figures.
  • FIG. 6 is a perspective view 600 of the valve 108 and its handle which are used in both the first embodiment and the second embodiment of the water filtration device. FIG. 6 illustrates the underside (the side that is not exposed) when viewing FIG. 2. Reference numeral 612 illustrates a cavity from the molding process. Reference numeral 609 indicates the handle portion of the valve 108 and reference numeral 608 indicates the other or second end of the valve 108. Ridges 602 engage stop 407 to limit the rotation of the valve between its first bypass position and its second filter position. A horn shaped passageway 603 is formed by wall 605. Wall 606 creates an annulus 604 in which a seal (not shown in FIG. 6) is positioned. A seal 450 is positioned in annulus 604 as indicated in FIGS. 4G and 4H. A groove 607 resides in the valve 108 for receiving a seal (not shown in FIG. 6) which prevents leakage of water from the valve 108 when it inserted in the front housing 103. FIG. 6A is a perspective view 600A of the exposed side of the valve and its handle 108 as viewed in FIG. 2. FIG. 6A illustrates seal 640 in groove 607 for sealing the valve 108 which is snap fit in the front housing.
  • FIG. 7 is a perspective view 700 of the electronic package 112, battery 701, sensor 135, leads 702, 703 and light emitting diode 136 used in the first and second embodiments of the water filtration device. In the preferred embodiment sensor 135 is a reed switch also known as a reed relay. However, those skilled in the art will readily recognize that different, sensors based on capacitance principles, piezoelectric principles, or induction principles may be employed with some modifications. FIG. 7A is a side view 700A of the electronic package illustrated in FIG. 7.
  • FIG. 9 is a front view 900 of gate 118 of the first embodiment. Recess 134 receives magnet 117 which actuates reed switch 135 when in proximity therewith. Prongs or knobs 134 interengage corresponding hinges 134 as illustrated in FIGS. 1 and 3. FIG. 9A is a cross-sectional view 900 taken along the lines 9A-9A of FIG. 9. FIG. 9A illustrates the contour of the gate 118 which includes front 903 and rear 902 surfaces. Sloping surface 904 diverges to body 905 having recess 134 in which magnet 117 is housed. Locks 901 secure magnet 117 in place. The magnet is installed by simply pushing on the magnet to orient it past the locks 901 which are plastic and somewhat malleable enabling insertion of the magnet into the plastic. The magnet is then hermetically sealed with potting compound.
  • FIG. 10 is a front view 1000 of the left end cap 114 of the filter 113. Hinges 132/132A are illustrated in FIGS. 10 and 10A. FIG. 10A is cross-sectional view 1000A of the left end cap of the filter taken along the lines 10A-10A of FIG. 10 illustrating the hinges 132/132A, passageway 141, dowel 1001, and protrusions 1002 and 1003 which slidingly seal with respect to the filter housing. Peripheral end portion such as the one denoted by reference numeral 131 are relatively soft and seal against the interior of the filter housing.
  • FIG. 13 is a top view 1300 of the lever 122 used to operate the plunger 120 of the first embodiment. Reference numeral 1301 indicates a recess in which insert 123 is secured by adhesive. Apertures or hinges 140/140A engage prongs or protrusions 138 for pivoting as previously described. FIG. 13A is a cross-sectional view of the lever 122 taken along the lines 13A-13A of FIG. 13 also illustrates the aperture 140A. Cavities 1302 and 1303 are illustrated in FIG. 13A. Cavity 1303 fits over flat portion 1101 of plunger 120. See, FIG. 11.
  • FIG. 13B is a perspective view 1300B which illustrates the underside of the lever 122 of FIG. 13. Cavity 1303 and wall 1304 of cavity 1303 are illustrated. Flat portion 1101 of plunger 120 fits into cavity 1303.
  • FIG. 14 is a front view 1400 of the fountain head 119 illustrating flanges 1401 and 1402. FIG. 14A is a cross-sectional view 1400A taken along the lines 14A-14A of the fountain head 119 of FIG. 14. Flange 1402 is snap-fit into place in lever 122 as is best seen in FIG. 3. Fountain head 119 is made of plastic. Spring 124 is illustrated in FIG. 1 as operable between seat 570 and surface 1106. See, FIGS. 3, 5C and 11C. FIG. 3 illustrates valve 121 seated against seat 330.
  • FIGS. 1-14 are directed toward the first embodiment of the invention. Some of the uses of the first embodiment of the invention are in bathrooms, hotel and motel rooms. The device disclosed is small and convenient for storage on vacations and business trips. FIGS. 15-20 are directed toward the second embodiment of the invention. Use of the second embodiment include kitchen and bar uses. Both embodiments are designed such that the filter sits rearwardly with respect to the faucet so that access to the faucet and the filter is permitted.
  • The reference numerals used in FIG. 15 correspond generally to the reference numerals used in FIG. 1 such that for example reference numerals 101 and 1501 both indicate filter housings.
  • FIG. 15 is an exploded perspective view 1500 of a second embodiment of the invention. Filter housing 1501 may have, for example, a diameter of 2.40 inches and a length of approximately 3.90 inches. One of the principal differences in the kitchen filter of the second embodiment is that it has only one filtered outlet 1507A whereas the bathroom unit has two filtered outlets 107A and 180. Filters 1513 and 113 may be pre-wrapped 495 using a hot seal method. See, FIGS. 4G and 4H. Adhesive is applied to the filter end caps 1514, 1515, then attached to the filter after which the subassembly is inserted into the filter housing. Peripheral seal portions of end caps 1514, 1515 seal the filter. Optionally, O- rings 375, 376 may be used to seal the filter so as to prevent unfiltered water from entering chamber 1750. See, FIG. 17. As in the case of the bathroom filter, the aerator assembly 1511 and spout 1506 are affixed in the front housing 1503 as previously illustrated. As also in the case of the bathroom filter, the collar lock 1505 is welded to the front housing 1503 and collar 1504 is permitted to rotate with respect to the collar lock. The screen assembly is inserted into the assembly atop the collar lock. Gate 1518 is slightly dimensionally different than the gate 118 previously described but it functions in the same way as gate 118. Spacers 1542 and 1543 extend from end cap 1502 and serve to ensure that gate 1518 remains in alignment.
  • Electronic package 112 is the same package used in the first embodiment. Reed switch 135 (or reed relay as it sometimes known) senses the proximity of magnet 1517 and the electronic package measures the total time of flow. Instead of a reed switch which is a magnetically coupled device, a capacitance based device or a pressure-sensitive device may be used instead. The pressure sensitive device would have to mounted in the closed end of the housing end cap 1502.
  • Valve 108 illustrated in FIG. 15 is the same valve used in the bathroom filter of the first embodiment. Spacers 1542, 1543 of the housing end cap 1502 assist in ensuring that the filter subassembly is in place. Referring to FIG. 17, a gap (unnumbered) exists between the spacer 1543 and the end cap 1514 of the filter. Spacer limits the movement of the filter subassembly such that it cannot move leftwardly too far before engaging the spacers. End plate 1516 is glued or welded to the housing end cap 102. Housing end cap 102 is glued or welded to the filter housing 1501.
  • FIG. 16 is a perspective view 1600 of the second embodiment of the water filtration device. FIG. 17 is a cross-sectional view 1700 of the second embodiment of the water filtration device taken along the lines 17-17 of FIG. 16. FIG. 17A is a cross-sectional view 1700A of the second embodiment of the water filtration device similar to FIG. 17 except the gate 1518 is shown rotated clockwise in the flow condition. Annulus 1701 is illustrated in FIG. 17A. Water resides in this annulus and flow thru filter 1513 into passageway 1529 and out port 1541 impinging upon gate 1518 rotating it clockwise.
  • Referring to FIGS. 15 and 17, filter end caps 1514 and 1515 have peripheral end portions (i.e., 1531 and 1530) which are seals which seal against the interior diameter of the filter housing 1501. Although not shown in FIG. 17, optional elastomeric O-ring seals similar to 375, 376 may be used between the peripheral end seals as illustrated in FIG. 3D.
  • FIG. 18 is a perspective view 1800 of the front housing of the second embodiment. FIG. 18 employs reference numerals like FIG. 4. FIG. 18A is a cross-sectional view taken along the lines 18A-18A of FIG. 18. Reference numeral 1801 indicates the wall to which the collar lock 1505 is welded and reference numeral 1804 indicates the floor upon which the collar lock 1804 sits at the time it is welded. Mold recesses 1802 are from the molding process. Groove or recess 1816 receives the seal from the valve 108. Cavity 1831 receives the valve 108. Referring to FIG. 18A, stop 1807A is illustrated which engages ridges 602 on valve 108. Stop 1807A is also illustrated in FIG. 18B, a cross-sectional view taken along the lines 18B-18B of FIG. 18. Tapered bore 1812 is illustrated by the circular lines in FIG. 18A.
  • Bore 1822 includes stepped portions 1813 and 1829. Inlet 1808 is shown leading to valve cavity 1831. Outlet 1814 and outlet 1809 are also shown in FIG. 18A. When valve 108 is positioned as illustrated in FIG. 18E inlet 1808 is connected to outlet 1814 and the water passes through front housing 1503 and is expelled unfiltered. Flow arrow 1870 depicts the path of flow through front housing 1503. When the valve 108 is positioned as illustrated in FIG. 18F inlet 1808 is connected to outlet 1809 where it is directed into the filter by inlet 1525 of the filter housing 1501. See, FIG. 16A a perspective view of a second embodiment of the water filtration device with the valve handle pulled forward. Flow arrow 1871 depicts the path of flow through front housing 1503 and into inlet 1525 of the filter housing.
  • Referring to FIG. 18B, valve cavity 1831 is illustrated as is stop 1807A and the cross-sectional portion 1807 of the stop. Unfiltered outlet 1814 is also depicted. FIG. 18C is a top view 1800C of the front housing 1503 of the second embodiment. FIG. 18D is a rear perspective view 1800D of the front housing of the second embodiment of the water filtration device. FIG. 18D illustrates receptacles 1819 and 1820 of the front housing which engage pins 1528 and 1527 respectively. Mold recesses from the molding process are indicated by reference numerals 1817, 1818, 1823, 1824 and 1825. Joint 1821 is welded to the filter housing.
  • FIG. 19 is a front perspective view 1900 of the filter housing of the second embodiment of the water filtration device. Surface 1904 engages the corresponding surface on the housing end cap 1502. Recess 1901 engages the perimeter of the front housing. FIG. 19A is a bottom view 1900A of the of the filter housing 1501 of the second embodiment of the water filtration device. FIG. 19B is a cross-sectional view 1900B taken along the lines 19B-19B of FIG. 19A illustrating port 1907 from which filtered water is expelled.
  • FIG. 19C is a cross-sectional view 1900C taken along the lines 19C-19C of FIG. 19C illustrating passageway 1905 in inlet 1525 of the filter housing 1501. FIG. 19D is a left side view 1900D, the open end view, of the filter housing 1501 of the second embodiment of the water filtration device illustrating mold prongs in the end housing. These prongs or ribs 1906 restrict the insertion depth of the filter sub assembly.
  • FIG. 20 is a front side view 2000 of the end cap of the housing 1502 of the second embodiment of the water filtration device. Surface 2007 of the housing end cap engages surface 1904 of the filter housing and is welded or glued thereto. FIG. 20A is a right side view 2000A of the end cap of FIG. 20 illustrating the closed end 2003. FIG. 20B is a perspective view 2000B of the end cap of FIG. 20 illustrating the closed end and spacers 1543, 1542. FIG. 20C is a view 2000C of the left side of the end cap of FIG. 20 illustrating supports 2001, 2002 and 2010 which restrict the movement of the electronic package in place. FIG. 20D is another perspective view 2000D of the end cap illustrating the housing 2011 in which the electronic package resides.
  • To assemble the water filtration devices, insert the aerator into the through spout and then insert the through spout and ultrasonically weld the aerator/spout assembly to the front housing. Place the threaded collar into the seat on top of the front housing and press the lock collar through the threaded collar and seat the lock collar into the housing. Clamp and ultrasonically weld the lock collar to the front housing.
  • Insert the filtered spout into the filter housing and clamp and weld it to the filter housing. Insert the front housing into position with respect to the filter housing and then clamp and ultrasonically weld it to the filter housing.
  • A prefilter may be wrapped around the filter and sealed using the hot seal method. Next, the left and right end caps with adhesive applied to the contact surfaces thereof are inserted in the filter. Uniform pressure is applied to the left and right filter end caps 114, 115, 1514, 1515 to spread the adhesive and allow it to set. Approximate time for applying pressure is 2-5 seconds. The magnet is installed into the gate under the pressure of a person's finger or a tool such as pliers or the equivalent then hermetically sealed in place.
  • Next, the gate 118, 1518 is snapped into the hinges with the magnet facing outwardly. Indicia on the left end cap of the filter subassembly is aligned with a mark or other indicia on the filter housing and the filter subassembly is inserted into the filter housing. Indicia on the housing end cap 102, 1502 is aligned with indicia on the filter housing and inserted therein. Once the housing end cap is in place it is clamped and ultrasonically welded to the filter housing non-removably retaining the filter within the filter housing.
  • The lever is installed by snapping it into place in the valve cavity. To install the end of life electronic package, the light emitting diode is inserted into and through the aperture 137. Optionally, adhesive may be used when installing the diode in the aperture 137 to secure it into position and to ensure that the diode is hermetically sealed. The electronic package is installed into the reservoir in the open end of the housing end cap with the glass reed switch facing inwardly. End plate 116, 1516 is next snap-fit into place to hermetically seal the electronic package. Optionally, adhesive may be used around the perimeter of the end plate to ensure a hermetic seal. Or, the end plates may be welded to the housing end caps.
  • The materials which are ultrasonically welded should be amenable to welding such as ABS or other plastics.
  • The invention has been described herein by way of example only. Those skilled in the art will readily recognize that changes and modifications may be made to the invention without departing from the spirit and scope of the appended claims which follow hereinbelow.

Claims (8)

1.-22. (canceled)
23. A single use water filtration device comprising; a filter housing having an inlet and an outlet; a water filter non-removably contained within said housing; said filter housing includes a chamber in communication with said water filter; said outlet residing in said chamber; a front housing having first and second passageways non-removably affixed to said filter housing; a directional valve residing within said front housing and movable therein for directing water into said filter or through said front housing.
24. A single use water filtration device as claimed in claim 23 wherein said front housing is ultrasonically welded to said filter housing.
25. A single use water filtration device as claimed in claim 24 wherein said front housing is welded by a welding device selected from the group of microwave, radio frequency (RF), heat and induction welding devices.
26.-54. (canceled)
55. A single-use faucet-mounted water filtration device comprising: a filter housing having an outlet for expelling filtered water therefrom; a front housing ultrasonically and non-removably affixed and welded to said filter housing; said filter housing residing rearwardly with respect to said faucet; a filter non-removably contained within said filter housing; said front housing includes an inlet and an adapter for connecting said inlet of said front housing of said water filtration device to said faucet for use of said filter and for disconnecting said water filtration device from said faucet for disposal when said filter is spent; said front housing includes a diverter for directing water into said filter or bypassing said filter; and, a gate, sensor and electronics, in combination, for measuring and indicating totalized flow through said water filtration devices.
56. A single-use faucet-mounted water filtration device as claimed in claim 55 wherein said filter housing includes a second outlet having a fountain for expelling filtered water therefrom; and, further comprising, a valve for controlling flow from said second outlet having a fountain.
57.-63. (canceled)
US11/255,670 2003-07-03 2005-10-21 Single-use long-life faucet-mounted water filtration devices Abandoned US20060037893A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/255,670 US20060037893A1 (en) 2003-07-03 2005-10-21 Single-use long-life faucet-mounted water filtration devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/613,950 US7258781B2 (en) 2002-09-09 2003-07-03 Single-use long-life faucet-mounted water filtration devices
US11/255,670 US20060037893A1 (en) 2003-07-03 2005-10-21 Single-use long-life faucet-mounted water filtration devices

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/613,950 Division US7258781B2 (en) 2002-09-09 2003-07-03 Single-use long-life faucet-mounted water filtration devices

Publications (1)

Publication Number Publication Date
US20060037893A1 true US20060037893A1 (en) 2006-02-23

Family

ID=34079624

Family Applications (7)

Application Number Title Priority Date Filing Date
US10/613,950 Expired - Fee Related US7258781B2 (en) 2002-09-09 2003-07-03 Single-use long-life faucet-mounted water filtration devices
US11/256,132 Abandoned US20060032793A1 (en) 2002-09-09 2005-10-21 Single-use long-life faucet-mounted water filtration devices
US11/256,403 Abandoned US20060032795A1 (en) 2002-09-09 2005-10-21 Single-use long-life faucet-mounted water filtration devices
US11/255,670 Abandoned US20060037893A1 (en) 2003-07-03 2005-10-21 Single-use long-life faucet-mounted water filtration devices
US11/256,064 Abandoned US20060032792A1 (en) 2002-09-09 2005-10-21 Single-use long-life faucet-mounted water filtration devices
US11/256,133 Abandoned US20060032794A1 (en) 2002-09-09 2005-10-21 Single-use long-life faucet-mounted water filtration devices
US11/255,715 Abandoned US20060076280A1 (en) 2002-09-09 2005-10-21 Single-use long-life faucet-mounted water filtration devices

Family Applications Before (3)

Application Number Title Priority Date Filing Date
US10/613,950 Expired - Fee Related US7258781B2 (en) 2002-09-09 2003-07-03 Single-use long-life faucet-mounted water filtration devices
US11/256,132 Abandoned US20060032793A1 (en) 2002-09-09 2005-10-21 Single-use long-life faucet-mounted water filtration devices
US11/256,403 Abandoned US20060032795A1 (en) 2002-09-09 2005-10-21 Single-use long-life faucet-mounted water filtration devices

Family Applications After (3)

Application Number Title Priority Date Filing Date
US11/256,064 Abandoned US20060032792A1 (en) 2002-09-09 2005-10-21 Single-use long-life faucet-mounted water filtration devices
US11/256,133 Abandoned US20060032794A1 (en) 2002-09-09 2005-10-21 Single-use long-life faucet-mounted water filtration devices
US11/255,715 Abandoned US20060076280A1 (en) 2002-09-09 2005-10-21 Single-use long-life faucet-mounted water filtration devices

Country Status (7)

Country Link
US (7) US7258781B2 (en)
EP (1) EP1697019A4 (en)
JP (1) JP2007523736A (en)
CN (1) CN1798597A (en)
AU (1) AU2004257651A1 (en)
CA (2) CA2624257A1 (en)
WO (1) WO2005007268A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060032794A1 (en) * 2002-09-09 2006-02-16 William Warren Single-use long-life faucet-mounted water filtration devices
WO2009033048A2 (en) * 2007-09-05 2009-03-12 Pur Water Purification Products, Inc. Apparatus and methods for faucet-mounted water filtration systems
USD665048S1 (en) 2008-04-17 2012-08-07 Pur Water Purification Products, Inc. Connector for a faucet mounted water filter
USD969964S1 (en) 2020-03-06 2022-11-15 Pentair Residential Filtration, Llc Filtration system
USD1018771S1 (en) 2022-11-15 2024-03-19 Pentair Residential Filtration, Llc Filtration system

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7252757B2 (en) * 2002-09-09 2007-08-07 Clarity Filters Llc Faucet-mounted water filtration device including gate position sensor
US7094334B1 (en) * 2003-05-21 2006-08-22 H2O International Inc. Water filter having a filter use time indicator
US20060108267A1 (en) * 2003-07-03 2006-05-25 William Warren Single-use long-life faucet-mounted water filtration devices
DE102005031232B4 (en) * 2005-07-01 2007-08-02 Aquacarat Gmbh Device and method for cleaning and / or disinfecting filters
EP1917435A4 (en) * 2005-08-01 2013-02-20 Chief R Davis Sewer line power generating system
GB2441981A (en) * 2006-09-22 2008-03-26 Naseem Bari An indicator assembly for a filter
USD592729S1 (en) 2006-11-17 2009-05-19 Pur Water Purification Products, Inc. Dispenser cartridge
USD586880S1 (en) 2006-11-17 2009-02-17 Pur Water Purification Products Inc. Faucet mount housing
US7892471B2 (en) * 2006-12-08 2011-02-22 Millipore Corporation Wireless enabled device
JP5500767B2 (en) * 2007-06-05 2014-05-21 三菱レイヨン株式会社 Water purifier
WO2009010742A1 (en) * 2007-07-18 2009-01-22 Dlp Limited Pipe coupling with integrated filter and flow detector
WO2010048412A1 (en) * 2008-10-22 2010-04-29 Glenn Cueman Reusable water filter systems and methods
CN101544442B (en) * 2009-04-30 2011-12-07 陕西科光电器有限公司 Water treatment method and high-efficiency magnetic carbon ultrasonic return secondary filter
US20120031511A1 (en) * 2010-08-06 2012-02-09 David Aaron Farley Transverse Mounted In-Line Shower Filter
US20120258156A1 (en) 2011-04-06 2012-10-11 Evan Rumberger Shaped compositions for uniform delivery of a functional agent
US9074357B2 (en) 2011-04-25 2015-07-07 Delta Faucet Company Mounting bracket for electronic kitchen faucet
EP2540957A1 (en) 2011-06-30 2013-01-02 Welltec A/S Downhole tool for determining laterals
US9057184B2 (en) 2011-10-19 2015-06-16 Delta Faucet Company Insulator base for electronic faucet
USD740411S1 (en) * 2012-09-21 2015-10-06 Femasys Inc. Device for pressure control
CN103028284B (en) * 2012-12-12 2014-09-03 江西洪都航空工业集团有限责任公司 Agricultural aircraft spraying operation filtering device
US9333698B2 (en) 2013-03-15 2016-05-10 Delta Faucet Company Faucet base ring
US9956511B2 (en) 2014-03-14 2018-05-01 Protect Plus, Llc Reusable water filter cartridge device
WO2017011213A1 (en) * 2015-07-13 2017-01-19 3M Innovative Properties Company A translating treatment cartridge, fluid dispensing system, and method of using
US10563908B2 (en) 2015-07-13 2020-02-18 3M Innovative Properties Company Translating treatment cartridge, fluid dispensing system, and method of using
CN106669263A (en) * 2016-11-23 2017-05-17 盐城市星火阀业制造有限公司 Pressurized strainer valve
US10393363B2 (en) 2017-04-25 2019-08-27 Delta Faucet Company Illumination device for a fluid delivery apparatus
US20190186649A1 (en) * 2017-12-15 2019-06-20 William J. Warren Liquid Flow Control Attachment with Wireless Connection
DE102018200530A1 (en) * 2018-01-15 2019-07-18 Hansgrohe Se Fluid conduit insert
US11173433B2 (en) * 2019-11-20 2021-11-16 Shenzhen Shenlan Electric Appliance Co., Ltd Service life reminding system for water bottle filter element
CN114307315A (en) * 2021-12-31 2022-04-12 武昌船舶重工集团有限公司 Filter element device

Citations (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US533849A (en) * 1895-02-05 William l
US597668A (en) * 1898-01-18 James e
US2568181A (en) * 1947-11-28 1951-09-18 Fram Corp Quickly removable filter casing cover
US3420266A (en) * 1963-09-20 1969-01-07 Aero Flow Dynamics Inc Combination magnetic bypass valve and indicator
US3443753A (en) * 1967-12-14 1969-05-13 Thomas M Mcdonnell Fountain attachment for faucets
US3746171A (en) * 1971-07-21 1973-07-17 J Thomsen Filter assembly
US4107046A (en) * 1975-09-29 1978-08-15 Teledyne Industries, Inc. Water purifier
US4147631A (en) * 1977-09-23 1979-04-03 Teledyne Industries, Inc. Water control and distribution apparatus
USD256944S (en) * 1978-04-24 1980-09-16 Brunswick Corporation Water filter
US4264036A (en) * 1979-10-31 1981-04-28 Moore Roger S Valve unit with drinking faucet
US4379053A (en) * 1981-06-12 1983-04-05 Brane Earl P Filter bypass valve assembly
US4504389A (en) * 1983-01-17 1985-03-12 Associated Mills, Inc. Water filter
US4656873A (en) * 1985-08-19 1987-04-14 Stewart David A Flow measuring device
US4681677A (en) * 1978-02-17 1987-07-21 Olin Corporation Water processor having automatic shutoff and bypass means
US4686037A (en) * 1985-03-27 1987-08-11 Teledyne Industries, Inc. Water filter apparatus
US4732674A (en) * 1984-12-06 1988-03-22 Hitachi, Ltd. Water purifier
US4735716A (en) * 1986-01-27 1988-04-05 Cuno Corporated Quick-change filter cartridge and head therefor
USD296925S (en) * 1986-05-30 1988-07-26 Caterpillar Inc. Twist on disposable filter
US4769135A (en) * 1987-03-02 1988-09-06 Culligan International Company Automatic metering system
US4770768A (en) * 1985-03-27 1988-09-13 Teledyne Industries, Inc. Water filter apparatus and aerator assembly
US4772386A (en) * 1986-05-30 1988-09-20 Autotrol Corporation Filter with liquid meter
US4806240A (en) * 1987-06-12 1989-02-21 Cuno, Incorporated Adapter and cartridge assembly
US4848164A (en) * 1988-05-27 1989-07-18 Graco Inc. Liquid flow meter
USD306755S (en) * 1987-12-03 1990-03-20 Cuno, Incorporated Head for a quick-change filter cartridge
USD306754S (en) * 1987-12-03 1990-03-20 Cuno, Incorporated Combined quick-change filter cartridge and head
US4918426A (en) * 1988-05-02 1990-04-17 Amway Corporation Method and apparatus for sensing fluid flow volume to indicate end of filter life
US4934597A (en) * 1989-04-07 1990-06-19 Crutcher William C Fountain attachment for a faucet
US4948505A (en) * 1986-01-27 1990-08-14 Cuno, Inc. Quick-change filter cartridge and head therefor
USD313832S (en) * 1989-09-26 1991-01-15 Cuno Incorporated Combined quick-change filter cartridge and head
USD314809S (en) * 1989-09-26 1991-02-19 Cuono, Incorporated Head for a quick-change filter cartridge
USD315013S (en) * 1989-09-26 1991-02-26 Cuno Incorporated Head for a quick-change filter cartridge
US5017286A (en) * 1990-03-05 1991-05-21 Heiligman Randy B Faucet-mounted water filter with wall inlet and annular chamber
USD317040S (en) * 1989-09-27 1991-05-21 Cuno, Incorporated Combined quick-change filter cartridge and head
USD320256S (en) * 1989-10-04 1991-09-24 Cuno, Incorporated Combined water filter and stand therefor or similar article
US5050772A (en) * 1990-04-09 1991-09-24 Brane Earl P Apparatus for monitoring a flow of fluid through a filter medium
US5089144A (en) * 1989-12-08 1992-02-18 Nartron Corporation Filter condition indicator having moveable sensor and aggregate flow counter
US5099870A (en) * 1990-02-09 1992-03-31 Dover Corporation Emergency shut-off valves
US5108606A (en) * 1991-03-27 1992-04-28 Engelhard Corporation Water purification device
US5126041A (en) * 1991-01-18 1992-06-30 Emerson Electric Co. Faucet with removable filter for a water distiller
US5126043A (en) * 1989-10-17 1992-06-30 Cuno, Incorporated Radial and axial flow filter device
USD328333S (en) * 1990-10-30 1992-07-28 Olin Corporation Container for swimming pool chemical tablets for use in skimmers, floaters or feeders
USD328942S (en) * 1990-06-22 1992-08-25 Mitsubishi Rayon Co., Ltd. Water purifier
US5151180A (en) * 1989-10-17 1992-09-29 Cuno, Incorporated Radial and axial flow stage filter device
US5151179A (en) * 1992-04-20 1992-09-29 Northland Aluminum Products, Inc. Faucet connected water filter
US5192436A (en) * 1990-11-21 1993-03-09 Tsutomi Sasaki Tap water purifier to be directly coupled to faucet pipe
US5248417A (en) * 1992-11-02 1993-09-28 Reid Roger P Double flow-through filtration apparatus
US5279748A (en) * 1992-08-28 1994-01-18 Richard Hackett Pool filter with electrolytic action
US5328609A (en) * 1992-11-16 1994-07-12 Magnusson Jon H Multi-stage radial flow filtration system
US5337956A (en) * 1993-02-10 1994-08-16 Crutcher William C Combination toy and faucet fountain
US5340478A (en) * 1992-08-07 1994-08-23 International Purity Corp. Dual chamber water filter
US5525214A (en) * 1994-03-08 1996-06-11 Recovery Engineering, Inc. Filter cartridge for water treatment device
US5527451A (en) * 1994-03-08 1996-06-18 Recovery Engineering, Inc. Water treatment device with volume totalization valve
US5536395A (en) * 1993-03-22 1996-07-16 Amway Corporation Home water purification system with automatic disconnecting of radiant energy source
US5536394A (en) * 1994-11-17 1996-07-16 Recovery Engineering, Inc. End of life mechanism for water treatment cartridge
US5540107A (en) * 1991-09-23 1996-07-30 Futureflo Systems, Inc. Liquid flow meter
USD377515S (en) * 1994-05-13 1997-01-21 Recovery Engineering, Inc. Water filter cartridge
US5622618A (en) * 1995-05-31 1997-04-22 Brane; Earl P. Apparatus for monitoring cumulative flow of fluid through a filter medium
US5652008A (en) * 1993-05-26 1997-07-29 Ultrapure Systems, Inc. Universal water filtration device and method of filtering water
US5653868A (en) * 1994-04-06 1997-08-05 Mitsubishi Rayon Company Ltd. Diverter and water purifier having same
US5705067A (en) * 1995-07-28 1998-01-06 Kitamuragokin Ind. Co., Ltd. Mixing faucet with water purifier
US5721383A (en) * 1995-11-20 1998-02-24 Water Savers, Inc. Flow meter system and method of using same
US5753118A (en) * 1996-12-16 1998-05-19 Yang; Tsai Chen Faucet and filter assembly
USD398369S (en) * 1997-09-09 1998-09-15 The Clorox Company Faucet mounted water treatment device
USD398703S (en) * 1997-09-09 1998-09-22 The Clorox Company Faucet mounted water treatment apparatus
US5876610A (en) * 1997-03-19 1999-03-02 Clack Corporation Method and apparatus for monitoring liquid flow through an enclosed stream
US5888381A (en) * 1997-05-16 1999-03-30 United States Filter Corporation Water filter with pressure actuated flow monitor
USD410728S (en) * 1998-07-30 1999-06-08 Omni Corporation Faucet mount water filter unit
US5935426A (en) * 1997-08-08 1999-08-10 Teledyne Industries, Inc., A California Corporation Water treatment device with volumetric and time monitoring features
US6024867A (en) * 1994-12-28 2000-02-15 Water Safety Corp. Of America Counter top water filter with replaceable electronic display monitor
US6093313A (en) * 1996-12-06 2000-07-25 Moen Incorporated Multiple discharge water faucet with self-contained filter
USD438592S1 (en) * 2000-01-27 2001-03-06 Recovery Engineering, Inc. Faucet-mounted water treatment device
USD441834S1 (en) * 1999-06-29 2001-05-08 Kimberly-Clark Worldwide, Inc. Sink sprayer
US6241880B1 (en) * 1999-09-13 2001-06-05 James Yahr Self-cleaning faucet filter
US6251274B1 (en) * 1999-03-16 2001-06-26 Envirogard Products Limited Faucet attachment for treating water
US6258266B1 (en) * 1999-04-21 2001-07-10 Sta-Rite Industries, Inc. Faucet mount water filtration device
US6338279B1 (en) * 1999-11-23 2002-01-15 Eddie J. Tsataros Flow detector to monitor a number of flow events or duration
US20020005379A1 (en) * 2000-05-01 2002-01-17 Kimberly-Clark Worldwide, Inc. Faucet-mounted water filtration device
US20020017947A1 (en) * 1998-11-17 2002-02-14 Mitsubishi Denki Kabushiki Kaisha Semiconductor circuit device having hierarchical power supply structure
USD453952S1 (en) * 2000-11-17 2002-02-26 Pur Water Purification Products, Inc. Faucet-mounted water treatment device
US20020060175A1 (en) * 2000-11-22 2002-05-23 Wayne Conrad Sensor for a water treatment apparatus
US6517720B1 (en) * 1998-03-04 2003-02-11 Jeffrey K. Aldred Escutcheon-mounted filter with above counter access for cartridge renewal
US20030070968A1 (en) * 2001-10-13 2003-04-17 Professional Dental Manufacturing Water filtering apparatus
US20030116495A1 (en) * 2001-12-21 2003-06-26 Chau Yiu Chau Faucet water treatment
US20040026302A1 (en) * 2002-08-12 2004-02-12 Jack Lee Water filter assembly
US20040069696A1 (en) * 2002-09-09 2004-04-15 William Warren Single-use long-life faucet-mounted water filtration devices
US20050009485A1 (en) * 2003-07-08 2005-01-13 Nec Corporation High-frequency amplification circuit
US20050035054A1 (en) * 2003-08-12 2005-02-17 Yi-Chin Chu Skincare device for filtering tapwater
US20050040097A1 (en) * 2002-04-18 2005-02-24 Bassett Laurence W. Dual-flow filter cartridge
US20050092661A1 (en) * 2002-09-09 2005-05-05 William Warren Single-use long-life faucet-mounted water filtration devices
US20060060512A1 (en) * 2002-02-15 2006-03-23 3M Innovative Properties System for monitoring the performance of fluid treatment cartridges

Family Cites Families (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US92661A (en) * 1869-07-13 Improvement in lamps
US527451A (en) * 1894-10-16 Traveling-grate furnace
US4386A (en) * 1846-02-20 jennison
US1401970A (en) * 1920-08-23 1922-01-03 Egle William Water filter
US2955712A (en) * 1958-05-08 1960-10-11 Parmatic Engineering Ltd High pressure oil filter unit having threaded bowl assembly valve actuating means
US3000505A (en) * 1958-05-22 1961-09-19 Purolator Products Inc Filter unit
US3420268A (en) * 1967-01-10 1969-01-07 Lily Tulip Cup Corp Apparatus for flowing pressure-flowable food products into a container
US3787149A (en) * 1971-03-24 1974-01-22 G Levey Pump for zinc-rich materials or the like
US3857277A (en) * 1972-12-29 1974-12-31 Laval Turbine Flow indicator
US3853761A (en) 1973-05-25 1974-12-10 Aqua Chem Inc Filter
US4172796A (en) 1975-09-29 1979-10-30 Teledyne Industries, Inc. Water purifier apparatus
US4151092A (en) 1977-07-11 1979-04-24 Teledyne Industries, Inc. Portable water filter
US4359384A (en) 1980-12-08 1982-11-16 Brane Earl P Self-locking filter valve
US4552306A (en) * 1982-10-26 1985-11-12 Litwak Alfred A Drinking fountain device and combination sink and drinking fountain device
US4489616A (en) 1983-05-16 1984-12-25 Priddy Jerry L Digital fluid flow meter
US4885081A (en) 1985-02-19 1989-12-05 Aquest, Inc. Drinking water delivery system with purity indicator
US4698164A (en) * 1985-07-29 1987-10-06 Kinetico, Inc. Filter apparatus
US4877521A (en) * 1987-04-30 1989-10-31 Cuno, Incorporated Quick-change filter cartridge and head therefor
US4863103A (en) * 1986-07-08 1989-09-05 Gannaway Richard M Combination sink spray and water filter apparatus
USD322836S (en) 1987-12-03 1991-12-31 Cuno Incorporated Top cap of a quick-change filter cartridge
US4824565A (en) * 1988-02-01 1989-04-25 Middleton Glen H Personal, portable, disposable tap water filter
WO1991010622A1 (en) * 1988-06-28 1991-07-25 Ube Industries, Ltd. Water purifier
US4980073A (en) 1988-07-06 1990-12-25 The Clorox Company Valve stem for a filter device
US5078176A (en) * 1988-07-06 1992-01-07 Woodruff Keith F Valve assembly for a filter device
USD321394S (en) * 1989-11-27 1991-11-05 Cuno, Incorporate Quick-change filter cartridge
US5065901A (en) * 1990-04-09 1991-11-19 Brane Earl P Apparatus for monitoring a flow of fluid through a filter medium
GB9101772D0 (en) * 1991-01-28 1991-03-13 Philips Electronic Associated A water cleaning device
US5580447A (en) 1991-04-09 1996-12-03 Sweetwater, Inc. Biocide filter
US5164082A (en) * 1991-12-17 1992-11-17 Lin Tzu Fu Water filter having lever controlled plunger
JPH0663548A (en) * 1992-08-14 1994-03-08 Mitsubishi Rayon Co Ltd Water purifier with filter change time display function
US5256287A (en) * 1992-11-12 1993-10-26 Ametek, Inc., Plymouth Products Division Cartridge filter for faucet attachment
US5273650A (en) 1992-12-17 1993-12-28 Wtc Industries, Inc. Ceramic filter
US5989425A (en) 1995-11-17 1999-11-23 Toray Industries, Inc. Multi-way valve and water purifier using the same
US5685981A (en) 1996-02-28 1997-11-11 Kx Industries, L.P. Water filter
US6099729A (en) * 1996-03-01 2000-08-08 Parker-Hannifin Corporation Coreless non-metallic filter element
US5820767A (en) 1996-07-29 1998-10-13 Pall Corporation Method for quantitation of microorganism contamination of liquids
US5976432A (en) 1996-09-09 1999-11-02 Plymouth Products, Inc. Method and apparatus for the continuous extrusion of block elements
US6135154A (en) * 1996-11-12 2000-10-24 Chen; Wei Fu Water faucet
US5833849A (en) 1997-04-28 1998-11-10 Everpure, Inc. Spout mounted water filter and extension
US6001249A (en) 1997-11-06 1999-12-14 Dart Industries Inc. Multi-stage water filter system
US5976362A (en) 1998-04-01 1999-11-02 The Clorox Company Faucet mounted water filter
AU2234399A (en) * 1998-01-21 1999-08-09 Clorox Company, The Faucet mounted water filter
US5993648A (en) 1998-03-17 1999-11-30 American Standard, Inc. Water filtration device with a water fountain outlet and a faucet outlet with flow viewing apparatus
EP1113859B1 (en) * 1998-09-09 2007-01-03 Pall Corporation Methods for treating fluids
US6451202B1 (en) * 1999-06-21 2002-09-17 Access Business Group International Llc Point-of-use water treatment system
US6830686B2 (en) * 2000-01-12 2004-12-14 Rct Technologies, Llc Filter cartridge support
US6953526B1 (en) * 2000-03-22 2005-10-11 Cuno Incorporated Filter assembly
JP2001276816A (en) * 2000-03-30 2001-10-09 Mitsubishi Rayon Co Ltd Water purifier
US6464871B1 (en) * 2000-07-21 2002-10-15 Globe Union Industrial Corp. Faucet assembly with a filtering device disposed in a faucet body
US20060108267A1 (en) * 2003-07-03 2006-05-25 William Warren Single-use long-life faucet-mounted water filtration devices
USD541372S1 (en) * 2005-11-01 2007-04-24 Clarity Filters Llc Water filter

Patent Citations (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US533849A (en) * 1895-02-05 William l
US597668A (en) * 1898-01-18 James e
US2568181A (en) * 1947-11-28 1951-09-18 Fram Corp Quickly removable filter casing cover
US3420266A (en) * 1963-09-20 1969-01-07 Aero Flow Dynamics Inc Combination magnetic bypass valve and indicator
US3443753A (en) * 1967-12-14 1969-05-13 Thomas M Mcdonnell Fountain attachment for faucets
US3746171A (en) * 1971-07-21 1973-07-17 J Thomsen Filter assembly
US4107046A (en) * 1975-09-29 1978-08-15 Teledyne Industries, Inc. Water purifier
US4147631A (en) * 1977-09-23 1979-04-03 Teledyne Industries, Inc. Water control and distribution apparatus
US4681677A (en) * 1978-02-17 1987-07-21 Olin Corporation Water processor having automatic shutoff and bypass means
USD256944S (en) * 1978-04-24 1980-09-16 Brunswick Corporation Water filter
US4264036A (en) * 1979-10-31 1981-04-28 Moore Roger S Valve unit with drinking faucet
US4379053A (en) * 1981-06-12 1983-04-05 Brane Earl P Filter bypass valve assembly
US4504389A (en) * 1983-01-17 1985-03-12 Associated Mills, Inc. Water filter
US4732674A (en) * 1984-12-06 1988-03-22 Hitachi, Ltd. Water purifier
US4770768A (en) * 1985-03-27 1988-09-13 Teledyne Industries, Inc. Water filter apparatus and aerator assembly
US4686037A (en) * 1985-03-27 1987-08-11 Teledyne Industries, Inc. Water filter apparatus
US4656873A (en) * 1985-08-19 1987-04-14 Stewart David A Flow measuring device
US4735716A (en) * 1986-01-27 1988-04-05 Cuno Corporated Quick-change filter cartridge and head therefor
US4948505A (en) * 1986-01-27 1990-08-14 Cuno, Inc. Quick-change filter cartridge and head therefor
USD296925S (en) * 1986-05-30 1988-07-26 Caterpillar Inc. Twist on disposable filter
US4772386A (en) * 1986-05-30 1988-09-20 Autotrol Corporation Filter with liquid meter
US4769135A (en) * 1987-03-02 1988-09-06 Culligan International Company Automatic metering system
US4806240A (en) * 1987-06-12 1989-02-21 Cuno, Incorporated Adapter and cartridge assembly
USD306755S (en) * 1987-12-03 1990-03-20 Cuno, Incorporated Head for a quick-change filter cartridge
USD306754S (en) * 1987-12-03 1990-03-20 Cuno, Incorporated Combined quick-change filter cartridge and head
US4918426A (en) * 1988-05-02 1990-04-17 Amway Corporation Method and apparatus for sensing fluid flow volume to indicate end of filter life
US4848164A (en) * 1988-05-27 1989-07-18 Graco Inc. Liquid flow meter
US4934597A (en) * 1989-04-07 1990-06-19 Crutcher William C Fountain attachment for a faucet
USD313832S (en) * 1989-09-26 1991-01-15 Cuno Incorporated Combined quick-change filter cartridge and head
USD314809S (en) * 1989-09-26 1991-02-19 Cuono, Incorporated Head for a quick-change filter cartridge
USD315013S (en) * 1989-09-26 1991-02-26 Cuno Incorporated Head for a quick-change filter cartridge
USD317040S (en) * 1989-09-27 1991-05-21 Cuno, Incorporated Combined quick-change filter cartridge and head
USD320256S (en) * 1989-10-04 1991-09-24 Cuno, Incorporated Combined water filter and stand therefor or similar article
US5151180A (en) * 1989-10-17 1992-09-29 Cuno, Incorporated Radial and axial flow stage filter device
US5126043A (en) * 1989-10-17 1992-06-30 Cuno, Incorporated Radial and axial flow filter device
US5089144A (en) * 1989-12-08 1992-02-18 Nartron Corporation Filter condition indicator having moveable sensor and aggregate flow counter
US5089144B1 (en) * 1989-12-08 1996-11-12 Nartron Corp Filter condition indicator having moveable sensor and aggregate flow counter
US5099870A (en) * 1990-02-09 1992-03-31 Dover Corporation Emergency shut-off valves
US5017286A (en) * 1990-03-05 1991-05-21 Heiligman Randy B Faucet-mounted water filter with wall inlet and annular chamber
US5050772A (en) * 1990-04-09 1991-09-24 Brane Earl P Apparatus for monitoring a flow of fluid through a filter medium
USD328942S (en) * 1990-06-22 1992-08-25 Mitsubishi Rayon Co., Ltd. Water purifier
USD328333S (en) * 1990-10-30 1992-07-28 Olin Corporation Container for swimming pool chemical tablets for use in skimmers, floaters or feeders
US5192436A (en) * 1990-11-21 1993-03-09 Tsutomi Sasaki Tap water purifier to be directly coupled to faucet pipe
US5126041A (en) * 1991-01-18 1992-06-30 Emerson Electric Co. Faucet with removable filter for a water distiller
US5108606A (en) * 1991-03-27 1992-04-28 Engelhard Corporation Water purification device
US5540107A (en) * 1991-09-23 1996-07-30 Futureflo Systems, Inc. Liquid flow meter
US5151179A (en) * 1992-04-20 1992-09-29 Northland Aluminum Products, Inc. Faucet connected water filter
US5340478A (en) * 1992-08-07 1994-08-23 International Purity Corp. Dual chamber water filter
US5279748A (en) * 1992-08-28 1994-01-18 Richard Hackett Pool filter with electrolytic action
US5248417A (en) * 1992-11-02 1993-09-28 Reid Roger P Double flow-through filtration apparatus
US5328609A (en) * 1992-11-16 1994-07-12 Magnusson Jon H Multi-stage radial flow filtration system
US5337956A (en) * 1993-02-10 1994-08-16 Crutcher William C Combination toy and faucet fountain
US5536395A (en) * 1993-03-22 1996-07-16 Amway Corporation Home water purification system with automatic disconnecting of radiant energy source
US5652008A (en) * 1993-05-26 1997-07-29 Ultrapure Systems, Inc. Universal water filtration device and method of filtering water
US20030034285A1 (en) * 1994-03-01 2003-02-20 Pur Water Purification Products Filter cartridge for water treatment device
US5525214A (en) * 1994-03-08 1996-06-11 Recovery Engineering, Inc. Filter cartridge for water treatment device
US6241103B1 (en) * 1994-03-08 2001-06-05 Recovery Engineering, Inc. Filter cartridge for water treatment device
US5928504A (en) * 1994-03-08 1999-07-27 Recovery Engineering, Inc. Faucet-mounted water treatment device
US5527451A (en) * 1994-03-08 1996-06-18 Recovery Engineering, Inc. Water treatment device with volume totalization valve
US5653868A (en) * 1994-04-06 1997-08-05 Mitsubishi Rayon Company Ltd. Diverter and water purifier having same
USD377515S (en) * 1994-05-13 1997-01-21 Recovery Engineering, Inc. Water filter cartridge
US5785844A (en) * 1994-11-17 1998-07-28 Recovery Engineering, Inc. End of life mechanism for water treatment cartridge
US5536394A (en) * 1994-11-17 1996-07-16 Recovery Engineering, Inc. End of life mechanism for water treatment cartridge
US6024867A (en) * 1994-12-28 2000-02-15 Water Safety Corp. Of America Counter top water filter with replaceable electronic display monitor
US5622618A (en) * 1995-05-31 1997-04-22 Brane; Earl P. Apparatus for monitoring cumulative flow of fluid through a filter medium
US5705067A (en) * 1995-07-28 1998-01-06 Kitamuragokin Ind. Co., Ltd. Mixing faucet with water purifier
US5721383A (en) * 1995-11-20 1998-02-24 Water Savers, Inc. Flow meter system and method of using same
US6093313A (en) * 1996-12-06 2000-07-25 Moen Incorporated Multiple discharge water faucet with self-contained filter
US5753118A (en) * 1996-12-16 1998-05-19 Yang; Tsai Chen Faucet and filter assembly
US5876610A (en) * 1997-03-19 1999-03-02 Clack Corporation Method and apparatus for monitoring liquid flow through an enclosed stream
US5888381A (en) * 1997-05-16 1999-03-30 United States Filter Corporation Water filter with pressure actuated flow monitor
US6926821B2 (en) * 1997-08-08 2005-08-09 Water Pik, Inc. Water treatment device with volumetric and time monitoring features
US5935426A (en) * 1997-08-08 1999-08-10 Teledyne Industries, Inc., A California Corporation Water treatment device with volumetric and time monitoring features
US6106705A (en) * 1997-08-08 2000-08-22 Teledyne Industries, Inc. Water treatment device with volumetric and time monitoring features
US6517707B2 (en) * 1997-08-08 2003-02-11 Water Pik, Inc. Water treatment device with volumetric and time monitoring features
USD398703S (en) * 1997-09-09 1998-09-22 The Clorox Company Faucet mounted water treatment apparatus
USD398369S (en) * 1997-09-09 1998-09-15 The Clorox Company Faucet mounted water treatment device
US6517720B1 (en) * 1998-03-04 2003-02-11 Jeffrey K. Aldred Escutcheon-mounted filter with above counter access for cartridge renewal
USD410728S (en) * 1998-07-30 1999-06-08 Omni Corporation Faucet mount water filter unit
US20020017947A1 (en) * 1998-11-17 2002-02-14 Mitsubishi Denki Kabushiki Kaisha Semiconductor circuit device having hierarchical power supply structure
US6251274B1 (en) * 1999-03-16 2001-06-26 Envirogard Products Limited Faucet attachment for treating water
US6258266B1 (en) * 1999-04-21 2001-07-10 Sta-Rite Industries, Inc. Faucet mount water filtration device
USD441834S1 (en) * 1999-06-29 2001-05-08 Kimberly-Clark Worldwide, Inc. Sink sprayer
US6241880B1 (en) * 1999-09-13 2001-06-05 James Yahr Self-cleaning faucet filter
US6338279B1 (en) * 1999-11-23 2002-01-15 Eddie J. Tsataros Flow detector to monitor a number of flow events or duration
USD438592S1 (en) * 2000-01-27 2001-03-06 Recovery Engineering, Inc. Faucet-mounted water treatment device
US6571960B2 (en) * 2000-05-01 2003-06-03 Kimberly-Clark Worldwide, Inc. Faucet-mounted water filtration device
US20020005379A1 (en) * 2000-05-01 2002-01-17 Kimberly-Clark Worldwide, Inc. Faucet-mounted water filtration device
USD453952S1 (en) * 2000-11-17 2002-02-26 Pur Water Purification Products, Inc. Faucet-mounted water treatment device
US20020060175A1 (en) * 2000-11-22 2002-05-23 Wayne Conrad Sensor for a water treatment apparatus
US6780316B2 (en) * 2001-10-13 2004-08-24 Professional Dental Manufacturing Water filtering apparatus with element support
US20030070968A1 (en) * 2001-10-13 2003-04-17 Professional Dental Manufacturing Water filtering apparatus
US20030116495A1 (en) * 2001-12-21 2003-06-26 Chau Yiu Chau Faucet water treatment
US20060060512A1 (en) * 2002-02-15 2006-03-23 3M Innovative Properties System for monitoring the performance of fluid treatment cartridges
US20050040097A1 (en) * 2002-04-18 2005-02-24 Bassett Laurence W. Dual-flow filter cartridge
US20040026302A1 (en) * 2002-08-12 2004-02-12 Jack Lee Water filter assembly
US20040069696A1 (en) * 2002-09-09 2004-04-15 William Warren Single-use long-life faucet-mounted water filtration devices
US20050092661A1 (en) * 2002-09-09 2005-05-05 William Warren Single-use long-life faucet-mounted water filtration devices
US20050009485A1 (en) * 2003-07-08 2005-01-13 Nec Corporation High-frequency amplification circuit
US20050035054A1 (en) * 2003-08-12 2005-02-17 Yi-Chin Chu Skincare device for filtering tapwater

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060032794A1 (en) * 2002-09-09 2006-02-16 William Warren Single-use long-life faucet-mounted water filtration devices
US20090090661A1 (en) * 2006-06-02 2009-04-09 Pur Water Purification Products, Inc. Apparatus and methods for faucet-mounted water filtration systems
US9004290B2 (en) 2006-06-02 2015-04-14 Pur Water Purification Products, Inc. Apparatus and methods for faucet-mounted water filtration systems
US10125026B2 (en) 2006-06-02 2018-11-13 Helen Of Troy Limited Apparatus and methods for faucet-mounted water filtration systems
WO2009033048A2 (en) * 2007-09-05 2009-03-12 Pur Water Purification Products, Inc. Apparatus and methods for faucet-mounted water filtration systems
WO2009033048A3 (en) * 2007-09-05 2009-05-22 Pur Water Purification Prod Apparatus and methods for faucet-mounted water filtration systems
RU2456245C2 (en) * 2007-09-05 2012-07-20 Пюр Уотер Пьюрификейшн Продактс, Инк. Devices and method of configuring filtars on water taps
AU2008296109B2 (en) * 2007-09-05 2013-01-10 Helen Of Troy Limited Apparatus and methods for faucet-mounted water filtration systems
US11440813B2 (en) 2007-09-05 2022-09-13 Helen Of Troy Limited Apparatus and methods for faucet-mounted water filtration systems
USD665048S1 (en) 2008-04-17 2012-08-07 Pur Water Purification Products, Inc. Connector for a faucet mounted water filter
USD969964S1 (en) 2020-03-06 2022-11-15 Pentair Residential Filtration, Llc Filtration system
USD1018771S1 (en) 2022-11-15 2024-03-19 Pentair Residential Filtration, Llc Filtration system

Also Published As

Publication number Publication date
US7258781B2 (en) 2007-08-21
CA2624257A1 (en) 2005-01-27
CA2509813A1 (en) 2005-01-27
CA2509813C (en) 2009-01-06
EP1697019A1 (en) 2006-09-06
US20060076280A1 (en) 2006-04-13
AU2004257651A1 (en) 2005-01-27
US20060032795A1 (en) 2006-02-16
EP1697019A4 (en) 2007-03-14
US20060032793A1 (en) 2006-02-16
WO2005007268A1 (en) 2005-01-27
US20060032792A1 (en) 2006-02-16
US20040069696A1 (en) 2004-04-15
US20060032794A1 (en) 2006-02-16
CN1798597A (en) 2006-07-05
JP2007523736A (en) 2007-08-23

Similar Documents

Publication Publication Date Title
US7258781B2 (en) Single-use long-life faucet-mounted water filtration devices
US20060108267A1 (en) Single-use long-life faucet-mounted water filtration devices
US7252757B2 (en) Faucet-mounted water filtration device including gate position sensor
US6517720B1 (en) Escutcheon-mounted filter with above counter access for cartridge renewal
US5277805A (en) Rechargeable water filter
EP1453585B1 (en) Low spillage replaceable water filter assembly
US4980073A (en) Valve stem for a filter device
JP5090593B2 (en) Water purification cartridge
US4968440A (en) Coupling element for a filter device
KR100499804B1 (en) Apparatus for connecting filter in water purifier
JPH0533120B2 (en)
EP1675668A1 (en) Water filter manifold with integral valve
CA2555752A1 (en) Single-use long-life faucet-mounted water filtration devices
JPH0235985A (en) Filter
JPH11253936A (en) Water purifier
US5078176A (en) Valve assembly for a filter device
MXPA05014111A (en) Single-use long-life faucet-mounted water filtration devices
CN219048097U (en) Water purifying and drinking machine
CN213271115U (en) Faucet with water purification integrated structure
JP2569491Y2 (en) Water purifier
JP2600199Y2 (en) Water purifier
MXPA06010392A (en) Single-use long-life faucet-mounted water filtration devices
JPH06102189B2 (en) Water purification cartridge
JP2002361234A (en) Cartridge for purifying city water
KR20000024061A (en) The water purifier

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION