US20170143865A1 - Dispenser, and refill - Google Patents
Dispenser, and refill Download PDFInfo
- Publication number
- US20170143865A1 US20170143865A1 US15/427,931 US201715427931A US2017143865A1 US 20170143865 A1 US20170143865 A1 US 20170143865A1 US 201715427931 A US201715427931 A US 201715427931A US 2017143865 A1 US2017143865 A1 US 2017143865A1
- Authority
- US
- United States
- Prior art keywords
- refill
- reservoir
- fluid
- dispensing
- outlet
- 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
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
- A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
- A61L9/12—Apparatus, e.g. holders, therefor
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/20—Poisoning, narcotising, or burning insects
- A01M1/2022—Poisoning or narcotising insects by vaporising an insecticide
- A01M1/2027—Poisoning or narcotising insects by vaporising an insecticide without heating
- A01M1/2044—Holders or dispensers for liquid insecticide, e.g. using wicks
- A01M1/205—Holders or dispensers for liquid insecticide, e.g. using wicks using vibrations, e.g. ultrasonic or piezoelectric atomizers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0638—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
- B05B17/0646—Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0653—Details
- B05B17/0676—Feeding means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0653—Details
- B05B17/0676—Feeding means
- B05B17/0684—Wicks or the like
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/13—Dispensing or storing means for active compounds
- A61L2209/132—Piezo or ultrasonic elements for dispensing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/13—Dispensing or storing means for active compounds
- A61L2209/133—Replaceable cartridges, refills
Definitions
- the present invention relates to a dispenser, and its associated refills.
- The can be used to dispense any of a variety of materials into an aerosol form, such as (but not limited to) air freshening compositions or other chemicals requiring automatic dosing.
- Dispensers are commonly provided in washrooms and similar facilities, in order to improve their overall environmental condition.
- various solid materials were utilized which sublimated, thereby dispersing a substitute odour for the odour found in public facilities.
- powered fan devices which assisted in the dispersal of the sublimated material.
- Such devices are well known in the art, and an example is shown in U.S. Pat. No. 4,830,791 entitled “Odor Control Device”, which discloses a solid dispensing device.
- Aerosol-type dispensing devices typically include a battery-powered motor that actuates the nozzle on the aerosol container on a periodic basis.
- VOCs volatile organic compounds
- propanol propanol
- isobutanes volatile organic compounds
- the piezo must be mounted in a horizontal disposition. This is acceptable for home use, where the device will be mounted at a low location within the room. Thus, the fragrance is dispensed upwards into the room. However, it is unsuitable for use in corporate or communal washrooms, where the dispenser must be fitted high up to limit vandalism or other tampering.
- the use of a Wisp-type device in such a location would not result in an effective dispensing of the fragrance into the room, as most of the fragrance would be captured by the ceiling panel above the device.
- the present invention therefore provides a dispensing apparatus, comprising a reservoir containing a fluid to be dispensed, an outlet at a base portion of the reservoir, leading to a dispensing port that comprises a piezo element drivable to vibrate and thereby dispense fluid from the dispensing port, a bleed tube communicating at one end with the dispensing port, extending therefrom to a location above the dispensing port, and including a selectively closeable valve, and a source of below-atmospheric pressure to the portion of the reservoir above the fluid.
- the piezo element is preferably porous, thereby to permit dispensing from a front side of the element of fluid contacting the element on a rear side. In this way, the piezo element can be located at the end of a conduit and dispense fluid from the conduit.
- piezo elements are sensitive to the pressure of fluid behind them; too high, and the piezo element will be too heavily damped to be able to vibrate in the correct manner.
- the above-defined arrangement of a bleed tube with selectively closeable valve, and source of below-atmospheric pressure ensures that an acceptable pressure is maintained in combination with a useful flow rate.
- the source of below-atmospheric pressure can be a piston. This can be arranged to withdraw air or otherwise expand the volume above the fluid in the reservoir, thereby creating a zone of reduced air pressure.
- Most dispensing apparatus have an openable cover concealing at least part of the apparatus. This provides a neat external appearance for the device and hinders unauthorised tampering.
- the cover is opened to allow access by service staff who can then replace the refill (etc).
- the piston is operatively connected to the cover so as to impose the below-atmospheric pressure to the reservoir as a result of the action of closing the cover. This ensures that the reduced pressure is consistently applied.
- the plunger of the piston can be acted on by the cover as it closes.
- such a cover can also be operatively connected to the selectively closeable valve so as to close the valve on closing the cover.
- the present invention also relates to a dispenser as set out above, but with just the bleed tube, and to a dispenser as set out above, but with just the source of below-atmospheric pressure.
- the present invention relates to a refill, suitable for a dispensing apparatus such as that defined above.
- the refill comprises an internal reservoir containing a fluid to be dispensed and having an outlet at a lower extremity, and an upwardly-extending fluid conduit, separate from the reservoir.
- a port can be provided at an upper extremity of the reservoir, for application of a below-atmospheric pressure. Further, a port can be provided at a lower extremity of the fluid conduit, for connection to the dispensing apparatus. A port can also be provided at an upper extremity of the fluid conduit, for connection to a selectively closeable valve.
- the refill can thus comprise a total of four ports, two at a lower extremity and two at an upper extremity.
- refill may be possible, co-operating of course with the design of the dispenser.
- more or less of the dispenser apparatus may be integrated into the refill; the selectively closeable valve could be included or (alternatively) the fluid conduit could be omitted from the refill and made a permanent part of the dispenser.
- a refill for a dispensing apparatus comprising a reservoir containing a fluid to be dispensed with an outlet at a lower extremity of the reservoir and a port at an upper extremity of the reservoir for application of a below-atmospheric pressure.
- FIG. 1 illustrates the principle of operation of the device
- FIG. 2 shows a dispenser being an embodiment of the present invention, with its lid open;
- FIG. 3 shows the dispenser of FIG. 2 , with the refill cartridge removed
- FIG. 4 shows a vertical section through the dispenser of FIG. 2 ;
- FIG. 5 shows the refill cartridge
- FIG. 6 shows a semi-transparent view of the refill cartridge.
- FIG. 1 illustrates the principle involved in the device.
- a reservoir 10 contains an amount of fluid 12 which is to be dispensed into the surrounding room.
- An outlet 14 at the base of the reservoir 10 allows the fluid to flow under gravity out of the reservoir 10 and along a conduit 16 to a dispensing zone 18 .
- This consists of an end to the outlet conduit 16 , over which is secured a disc-shaped porous ultrasonic piezo element 20 , held in place over the end of the conduit 16 by a flexible seal 22 .
- the piezo element When powered by an electrical signal, the piezo element vibrates with a high resonant frequency of about 100-120 kHz. Fluid adsorbed into the rear of the porous disc of the element is then atomised and finely dispersed into the air in front of the element.
- the first is a source of below-atmospheric pressure that is applied to the volume above the fluid 12 within the reservoir 10 .
- This comprises a syringe 24 in which moves a piston 26 , and which is connected to a port 28 at the top of the reservoir 10 via a low pressure conduit 30 .
- the piston 26 As the piston 26 is withdrawn, it will expand any air in the syringe, together with the air in the conduit 30 and any air in the reservoir 10 above the level of the fluid 12 . This will create a low pressure zone above the fluid 12 and assist in reducing the pressure behind the piezo element 20 .
- the second is a bleed tube 32 , disposed alongside the reservoir 10 .
- This is generally vertical, and extends from a junction 34 with the outlet conduit 16 just behind the dispensing zone 18 , upwards to a point above the dispensing zone 18 and proximate the top of the reservoir 10 .
- a valve 36 at the upper end of the bleed tube 32 is selectively closeable.
- the valve 36 is left open during filling or replacement of the reservoir 10 .
- fluid 12 can flow into the bleed tube 32 via the outlet conduit 16 and the junction 34 , expelling air via the valve 36 .
- the valve 36 is closed (and the piston 26 is withdrawn). The result is that as fluid is dispensed via the piezo element 20 , the fluid level in the reservoir 10 will fall. This will seek to draw down the fluid level in the bleed tube, reducing the pressure of the air in the bleed tube above the fluid level. This will assist further in reducing the fluid pressure behind the piezo element 20 and thus control the flow of fluid onto the rear of the piezo element.
- the syringe does not need to achieve an exceptionally low pressure; it can thus be primed by the force of (for example) the dispenser door being closed, and does not meet significant leakage problems during a typical service interval.
- the bleed tube does not need to be particularly long, and can thus fit into the approximate size of the reservoir and can be filled by flowback from the reservoir without other assistance.
- FIG. 1 shows a dotted outline 38 which encompasses the reservoir 10 and the bleed tube 32 .
- This could form a suitable delineation between the fixed section of the dispenser and a removable refill.
- Suitable seals could be provided at the top and bottom of the bleed tube, and at the outlet 14 and port 28 of the reservoir, enabling a single removable item to be defined that includes the reservoir and bleed tube. Once the reservoir is exhausted, this item could be removed and replaced with a fresh item (or a recycled and refilled item).
- a smaller refill unit 40 could be defined, including only the reservoir 10 and not the bleed tube 32 .
- the larger refill 38 has the advantage that the bleed tube 32 can be placed in front of the reservoir 10 , placing the junction 34 proximate the dispensing zone 18 without the bleed tube 32 obstructing removal of the refill.
- FIGS. 2 to 6 show a practical implementation of the principle shown in FIG. 1 , adopting the larger refill 38 .
- the dispenser 100 comprises a backplate 102 that can be attached to an upright wall or the like at a suitable elevated location so as to deter tampering (etc). Typically, this is approximately 6 feet (2 metres) from the ground, or higher.
- the backplate 102 carries a cover 104 , shown in an open position, which is hinged to the backplate 102 at its upper edge.
- an operative can lift the cover (after disengaging a suitable latch or lock) to expose the interior of the dispenser.
- FIGS. 2 and 4 show the refill 108 in place
- FIG. 3 shows the dispenser 100 with the refill unit 108 removed.
- Below the shelf 106 are a pattern of outlet conduits 110 a, 110 b; these lead from a pair of lower bayonet fixings 112 , 114 (respectively) to a dispensing zone 118 in the form of a cavity closed at its front face by a piezo disc 120 .
- Each of the bayonet fixings 112 , 114 engage with a corresponding outlet 122 , 124 on the base of the refill unit as will be described.
- the outlets 122 , 124 are closed with septum-type seals to prevent leakage prior to installation.
- a clamp bar 126 is provided which can be raised or lowered as necessary. In its lowered position it is spaced above the lower shelf 106 so as to retain the refill 108 in a snug grip. In its raised position, it allows the refill to be disengaged from the lower bayonet fixings 112 , 114 and removed from the dispenser 100 .
- On the underside of the clamp bar 126 there are a pair of upper bayonet fixings 128 , 130 which engage with corresponding ports 132 , 134 on the upper face of the refill 108 .
- the upper bayonet fixing 128 leads to a valve 136 which is normally open but pressed into a closed state when the cover 104 is closed.
- Upper bayonet fixing 130 leads to the interior of a piston chamber 138 ; a piston 140 is withdrawn in the piston chamber 138 by levers 142 which extend rearwardly from the piston 140 and then outwardly. Thus, as the cover 104 is pressed shut, it presses on the levers 142 urging them towards the backplate 102 , against a spring bias (not shown). This draws the piston 140 back within the piston chamber 138 .
- a tube 144 is fitted to the outlet 124 (at one end) and to the port 132 at the other. This acts as the bleed tube, extending from the dispensing zone 118 upwards to the valve 136 .
- the space within the refill 108 around the tube 144 acts as the reservoir and is filled with a fluid to be dispensed.
- the dispenser is prepared for use by opening the cover 104 , which opens the valve 136 and allows the piston to move forward (away from the backplate 102 ) under the force of the spring bias.
- the clamp bar 126 is lifted and any refill 108 that is present is removed.
- a fresh refill 108 is obtained, and is placed over the lower bayonet fixings 112 , 114 .
- the clamp bar 126 is then lowered, forcing the bayonet fixings into place and allowing fluid to flow from the reservoir within the refill 108 into the dispensing zone 118 and the bleed tube 144 .
- the cover 104 is then closed, closing the valve 136 and withdrawing the piston 140 thereby creating a low pressure zone above the fluid in the reservoir.
- Batteries 146 are provided either side of the refill 108 and provide electrical power to a control unit 148 located above the clamp bar 126 .
- This provides power to the piezo element 120 according to a predetermined program which may be (for example) as described in our earlier patent applications GB 2392438, GB 2392439 and GB 2392440.
- these provide for periodic activation of the dispenser as required to provide sufficient fragrance to a room over a period of (typically) between 30 and 90 days.
- it will send a suitable drive signal to the piezo element 120 as and when a dispensing event is required.
- FIGS. 5 and 6 show the refill 108 , FIG. 6 in a part-transparent style so as to illustrate the bleed tube 144 in the interior, linking the outlet 124 with the port 132 .
- Outlet 122 allows fluid to be drained from the interior of the refill 108 around the tube 144
- port 134 allows access to the air space above the fluid, permitting the below-atmospheric pressure to be applied.
- All four outlets and ports are sealed with septum seals which close in the absence of a bayonet fixing thereby preventing leakage, and open when pierced by a bayonet fixing to allow passage of the relevant fluid or gas.
- Each is also provided with an external O-ring seal 146 to provide additional sealing.
- the present invention provides a dispenser able to dispense a low-VOX fluid that is not aerosol-based, from an elevated location.
Abstract
A dispenser capable of dispensing a fluid via a vertically-oriented piezo device comprises a reservoir containing a fluid to be dispensed, an outlet at a base portion of the reservoir, leading to a dispensing port that comprises a piezo element drivable to vibrate and thereby dispense fluid from the dispensing port, a bleed tube communicating at one end with the dispensing port, extending therefrom to a location above the dispensing port, and including a selectively closeable valve, and a source of below-atmospheric pressure to the portion of the reservoir above the fluid. Embodiments of refills suitable for such a dispensing apparatus are also described.
Description
- The present invention relates to a dispenser, and its associated refills. The can be used to dispense any of a variety of materials into an aerosol form, such as (but not limited to) air freshening compositions or other chemicals requiring automatic dosing.
- Dispensers are commonly provided in washrooms and similar facilities, in order to improve their overall environmental condition. In the past, various solid materials were utilized which sublimated, thereby dispersing a substitute odour for the odour found in public facilities. In order to enhance the dispersion of such sublimating materials, many suppliers developed powered fan devices which assisted in the dispersal of the sublimated material. Such devices are well known in the art, and an example is shown in U.S. Pat. No. 4,830,791 entitled “Odor Control Device”, which discloses a solid dispensing device.
- More recently, odour control devices where a pressurized aerosol container is utilized have become well known in the art. Aerosol-type dispensing devices typically include a battery-powered motor that actuates the nozzle on the aerosol container on a periodic basis. These conventional dispensing devices have significant disadvantages. Aerosol cans require propellant gases, and whilst CFC-free propellants have been identified, these tend to require volatile organic compounds (VOCs), propanol, isobutanes and the like which are coming under increasing scrutiny. Several jurisdictions have introduced legislation aimed at reducing or elimination the unnecessary use of such chemicals.
- It would therefore be desirable to deliver the scent directly, i.e. by evaporation or other dispersion of the scent composition itself, avoiding the need for carrier and propellant chemicals. This has been achieved for the home environment by SC Johnson, Inc. with the Glade® Wisp device, which uses a piezo element to disperse a scent formulation into the air by vibrating at high frequency while in contact with a small volume of the formulation. This aerosolises the formulation, dispersing it as required. However, such devices are problematic in that the volume of formulation that is in contact with the piezo must be closely controlled; if too large, the piezo does not resonate and the formulation is not dispensed. This requires the formulation to be delivered to a horizontally-disposed piezo element via a wick.
- As a result of this limitation, the piezo must be mounted in a horizontal disposition. This is acceptable for home use, where the device will be mounted at a low location within the room. Thus, the fragrance is dispensed upwards into the room. However, it is unsuitable for use in corporate or communal washrooms, where the dispenser must be fitted high up to limit vandalism or other tampering. The use of a Wisp-type device in such a location would not result in an effective dispensing of the fragrance into the room, as most of the fragrance would be captured by the ceiling panel above the device.
- There still remains, therefore, a need for an effective fragrance dispenser that can be mounted in an elevated location (typically more than 6 feet or 2 metres from the floor) and that can dispense a fragrance without the use of excessive propellant compositions and the like. For corporate and communal use, it would also be preferable for the device to be battery-operated, rather than a plug-in device requiring a mains electrical supply, as there is rarely a mains electrical supply at the required location.
- We have succeeded in creating a device which controls the rate of flow of a fragrance formulation onto a vertically-oriented piezo device. This therefore allows a piezo-based dispenser to be used in corporate and communal environments, avoiding all propellant gases and reducing the VOC usage dramatically. Some solvents will be needed in order to set the viscosity of the fragrance at the correct level, but this will be small in comparison with existing aerosol devices.
- In its first aspect, the present invention therefore provides a dispensing apparatus, comprising a reservoir containing a fluid to be dispensed, an outlet at a base portion of the reservoir, leading to a dispensing port that comprises a piezo element drivable to vibrate and thereby dispense fluid from the dispensing port, a bleed tube communicating at one end with the dispensing port, extending therefrom to a location above the dispensing port, and including a selectively closeable valve, and a source of below-atmospheric pressure to the portion of the reservoir above the fluid.
- The piezo element is preferably porous, thereby to permit dispensing from a front side of the element of fluid contacting the element on a rear side. In this way, the piezo element can be located at the end of a conduit and dispense fluid from the conduit. However, we have found that such piezo elements are sensitive to the pressure of fluid behind them; too high, and the piezo element will be too heavily damped to be able to vibrate in the correct manner. The above-defined arrangement of a bleed tube with selectively closeable valve, and source of below-atmospheric pressure, ensures that an acceptable pressure is maintained in combination with a useful flow rate.
- The source of below-atmospheric pressure can be a piston. This can be arranged to withdraw air or otherwise expand the volume above the fluid in the reservoir, thereby creating a zone of reduced air pressure.
- Most dispensing apparatus have an openable cover concealing at least part of the apparatus. This provides a neat external appearance for the device and hinders unauthorised tampering. The cover is opened to allow access by service staff who can then replace the refill (etc). Ideally, the piston is operatively connected to the cover so as to impose the below-atmospheric pressure to the reservoir as a result of the action of closing the cover. This ensures that the reduced pressure is consistently applied. Where a piston is used, the plunger of the piston can be acted on by the cover as it closes.
- In a similar manner, such a cover can also be operatively connected to the selectively closeable valve so as to close the valve on closing the cover.
- We prefer that both the bleed tube and the source of below-atmospheric pressure are provided, for reasons set out herein. However, the present invention also relates to a dispenser as set out above, but with just the bleed tube, and to a dispenser as set out above, but with just the source of below-atmospheric pressure.
- In a second aspect, the present invention relates to a refill, suitable for a dispensing apparatus such as that defined above. The refill comprises an internal reservoir containing a fluid to be dispensed and having an outlet at a lower extremity, and an upwardly-extending fluid conduit, separate from the reservoir.
- A port can be provided at an upper extremity of the reservoir, for application of a below-atmospheric pressure. Further, a port can be provided at a lower extremity of the fluid conduit, for connection to the dispensing apparatus. A port can also be provided at an upper extremity of the fluid conduit, for connection to a selectively closeable valve. The refill can thus comprise a total of four ports, two at a lower extremity and two at an upper extremity.
- Other designs of refill may be possible, co-operating of course with the design of the dispenser. For example, more or less of the dispenser apparatus may be integrated into the refill; the selectively closeable valve could be included or (alternatively) the fluid conduit could be omitted from the refill and made a permanent part of the dispenser.
- Thus, in a third aspect of the invention, we propose a refill for a dispensing apparatus, comprising a reservoir containing a fluid to be dispensed with an outlet at a lower extremity of the reservoir and a port at an upper extremity of the reservoir for application of a below-atmospheric pressure.
- An embodiment of the present invention will now be described by way of example, with reference to the accompanying figures in which;
-
FIG. 1 illustrates the principle of operation of the device; -
FIG. 2 shows a dispenser being an embodiment of the present invention, with its lid open; -
FIG. 3 shows the dispenser ofFIG. 2 , with the refill cartridge removed; -
FIG. 4 shows a vertical section through the dispenser ofFIG. 2 ; -
FIG. 5 shows the refill cartridge; and -
FIG. 6 shows a semi-transparent view of the refill cartridge. -
FIG. 1 illustrates the principle involved in the device. Areservoir 10 contains an amount offluid 12 which is to be dispensed into the surrounding room. Anoutlet 14 at the base of thereservoir 10 allows the fluid to flow under gravity out of thereservoir 10 and along aconduit 16 to a dispensingzone 18. This consists of an end to theoutlet conduit 16, over which is secured a disc-shaped porous ultrasonicpiezo element 20, held in place over the end of theconduit 16 by aflexible seal 22. - When powered by an electrical signal, the piezo element vibrates with a high resonant frequency of about 100-120 kHz. Fluid adsorbed into the rear of the porous disc of the element is then atomised and finely dispersed into the air in front of the element.
- We have found, however, that a simple arrangement as described above does not work satisfactorily. Allowing the fluid to flow under gravity to the rear of the piezo element creates too high a pressure behind the element, overloading it and preventing satisfactory resonance. As a result, there is little or no atomisation of the liquid and very little is dispensed.
- Two further aspects of the device work together to control the fluid pressure behind the piezo element and ensure that the fluid pressure behind the piezo element is controlled. The first is a source of below-atmospheric pressure that is applied to the volume above the fluid 12 within the
reservoir 10. This comprises asyringe 24 in which moves apiston 26, and which is connected to aport 28 at the top of thereservoir 10 via alow pressure conduit 30. As thepiston 26 is withdrawn, it will expand any air in the syringe, together with the air in theconduit 30 and any air in thereservoir 10 above the level of the fluid 12. This will create a low pressure zone above the fluid 12 and assist in reducing the pressure behind thepiezo element 20. - The second is a
bleed tube 32, disposed alongside thereservoir 10. This is generally vertical, and extends from ajunction 34 with theoutlet conduit 16 just behind the dispensingzone 18, upwards to a point above the dispensingzone 18 and proximate the top of thereservoir 10. Avalve 36 at the upper end of thebleed tube 32 is selectively closeable. - The
valve 36 is left open during filling or replacement of thereservoir 10. As a result, fluid 12 can flow into thebleed tube 32 via theoutlet conduit 16 and thejunction 34, expelling air via thevalve 36. Before bringing the dispenser into service, thevalve 36 is closed (and thepiston 26 is withdrawn). The result is that as fluid is dispensed via thepiezo element 20, the fluid level in thereservoir 10 will fall. This will seek to draw down the fluid level in the bleed tube, reducing the pressure of the air in the bleed tube above the fluid level. This will assist further in reducing the fluid pressure behind thepiezo element 20 and thus control the flow of fluid onto the rear of the piezo element. - Together, these two measures allow sufficient control of the fluid pressure to the rear of the piezo element to allow dispensing of the fluid in the reservoir over a typical service cycle of 30, 60 or 90 days. Whilst both serve to reduce the air pressure above the fluid in the period before and/or during dispensing, and thus either could be used independently, we find that the combination of both has advantages in that neither needs to be particularly aggressive. In other words, the syringe does not need to achieve an exceptionally low pressure; it can thus be primed by the force of (for example) the dispenser door being closed, and does not meet significant leakage problems during a typical service interval. Likewise, the bleed tube does not need to be particularly long, and can thus fit into the approximate size of the reservoir and can be filled by flowback from the reservoir without other assistance.
-
FIG. 1 shows a dottedoutline 38 which encompasses thereservoir 10 and thebleed tube 32. This could form a suitable delineation between the fixed section of the dispenser and a removable refill. Suitable seals could be provided at the top and bottom of the bleed tube, and at theoutlet 14 andport 28 of the reservoir, enabling a single removable item to be defined that includes the reservoir and bleed tube. Once the reservoir is exhausted, this item could be removed and replaced with a fresh item (or a recycled and refilled item). - Alternatively, a
smaller refill unit 40 could be defined, including only thereservoir 10 and not thebleed tube 32. Thus would have the advantage that the (potentially disposable) refill would cost slightly less, but thelarger refill 38 has the advantage that thebleed tube 32 can be placed in front of thereservoir 10, placing thejunction 34 proximate the dispensingzone 18 without thebleed tube 32 obstructing removal of the refill. -
FIGS. 2 to 6 show a practical implementation of the principle shown inFIG. 1 , adopting thelarger refill 38. Thus, referring toFIGS. 2, 3 and 4 , thedispenser 100 comprises abackplate 102 that can be attached to an upright wall or the like at a suitable elevated location so as to deter tampering (etc). Typically, this is approximately 6 feet (2 metres) from the ground, or higher. Thebackplate 102 carries acover 104, shown in an open position, which is hinged to thebackplate 102 at its upper edge. Thus, to install or service the dispenser, an operative can lift the cover (after disengaging a suitable latch or lock) to expose the interior of the dispenser. - Within the
dispenser 100, there is alower shelf 106 onto which arefill unit 108 can be placed.FIGS. 2 and 4 show therefill 108 in place,FIG. 3 shows thedispenser 100 with therefill unit 108 removed. Below theshelf 106 are a pattern ofoutlet conduits lower bayonet fixings 112, 114 (respectively) to adispensing zone 118 in the form of a cavity closed at its front face by apiezo disc 120. Each of thebayonet fixings corresponding outlet outlets - At the upper end of the
dispenser 100, aclamp bar 126 is provided which can be raised or lowered as necessary. In its lowered position it is spaced above thelower shelf 106 so as to retain therefill 108 in a snug grip. In its raised position, it allows the refill to be disengaged from thelower bayonet fixings dispenser 100. On the underside of theclamp bar 126, there are a pair ofupper bayonet fixings corresponding ports refill 108. The upper bayonet fixing 128 leads to avalve 136 which is normally open but pressed into a closed state when thecover 104 is closed. Upper bayonet fixing 130 leads to the interior of apiston chamber 138; apiston 140 is withdrawn in thepiston chamber 138 bylevers 142 which extend rearwardly from thepiston 140 and then outwardly. Thus, as thecover 104 is pressed shut, it presses on thelevers 142 urging them towards thebackplate 102, against a spring bias (not shown). This draws thepiston 140 back within thepiston chamber 138. - Within the
refill 108, atube 144 is fitted to the outlet 124 (at one end) and to theport 132 at the other. This acts as the bleed tube, extending from the dispensingzone 118 upwards to thevalve 136. The space within therefill 108 around the tube 144 (but not including the interior of the tube 144) acts as the reservoir and is filled with a fluid to be dispensed. - Thus, as described with reference to
FIG. 1 , the dispenser is prepared for use by opening thecover 104, which opens thevalve 136 and allows the piston to move forward (away from the backplate 102) under the force of the spring bias. Theclamp bar 126 is lifted and anyrefill 108 that is present is removed. Afresh refill 108 is obtained, and is placed over thelower bayonet fixings clamp bar 126 is then lowered, forcing the bayonet fixings into place and allowing fluid to flow from the reservoir within therefill 108 into the dispensingzone 118 and thebleed tube 144. Thecover 104 is then closed, closing thevalve 136 and withdrawing thepiston 140 thereby creating a low pressure zone above the fluid in the reservoir. -
Batteries 146 are provided either side of therefill 108 and provide electrical power to acontrol unit 148 located above theclamp bar 126. This provides power to thepiezo element 120 according to a predetermined program which may be (for example) as described in our earlier patent applications GB 2392438, GB 2392439 and GB 2392440. In outline, these provide for periodic activation of the dispenser as required to provide sufficient fragrance to a room over a period of (typically) between 30 and 90 days. In this embodiment, it will send a suitable drive signal to thepiezo element 120 as and when a dispensing event is required. -
FIGS. 5 and 6 show therefill 108,FIG. 6 in a part-transparent style so as to illustrate thebleed tube 144 in the interior, linking theoutlet 124 with theport 132.Outlet 122 allows fluid to be drained from the interior of therefill 108 around thetube 144, andport 134 allows access to the air space above the fluid, permitting the below-atmospheric pressure to be applied. All four outlets and ports are sealed with septum seals which close in the absence of a bayonet fixing thereby preventing leakage, and open when pierced by a bayonet fixing to allow passage of the relevant fluid or gas. Each is also provided with an external O-ring seal 146 to provide additional sealing. - Thus, the present invention provides a dispenser able to dispense a low-VOX fluid that is not aerosol-based, from an elevated location.
- It will of course be understood that many variations may be made to the above-described embodiment without departing from the scope of the present invention.
Claims (15)
1. A refill for removably fitting to a dispensing apparatus for dispensing a fluid in an aerosol form from a dispensing outlet, the refill comprising an internal reservoir containing the fluid to be dispensed and having an outlet at a lower extremity, and an upwardly-extending fluid conduit, separate from the reservoir, which, when the refill is in use in the dispensing apparatus, extends upwardly above the dispensing outlet.
2. The refill according to claim 1 further comprising a port at an upper extremity of the reservoir, for application of a below-atmospheric pressure.
3. The refill according to claim 1 further comprising a port at a lower extremity of the fluid conduit, for connection to the dispensing apparatus.
4. The refill according to claim 1 further comprising a port at an upper extremity of the fluid conduit, for connection to a selectively closeable valve.
5. A refill for removably fitting to a dispensing apparatus for dispensing a fluid in an aerosol form from a dispensing outlet, the refill comprising a reservoir containing the fluid to be dispensed, with an outlet at a lower extremity of the reservoir for connection to the dispensing outlet, when the refill is in use in the dispensing apparatus, and a port at an upper extremity of the reservoir for application of a below-atmospheric pressure.
6. The refill according to claim 1 further comprising a septum type seal to close the outlet at the lower extremity of the reservoir.
7. The refill according to claim 2 further comprising a septum type seal to close the port at the upper extremity of the reservoir.
8. The refill according to claim 3 further comprising a septum type seal to close the outlet at the lower extremity of the fluid conduit.
9. The refill according to claim 4 further comprising a septum type seal to close the outlet at the upper extremity of the fluid conduit.
10. The refill according to claim 1 wherein the fluid conduit extends outside and alongside the reservoir.
11. The refill according to claim 1 wherein the fluid conduit extends through the reservoir.
12. The refill according to claim 1 wherein the upper extremity of the fluid conduit is proximate a top surface of the reservoir.
13. The refill according to claim 1 wherein the fluid is an air freshening composition.
14. The refill according to claim 5 further comprising septum type seals to close the outlet and the port.
15. The refill according to claim 5 wherein the fluid is an air freshening composition.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/427,931 US20170143865A1 (en) | 2011-09-01 | 2017-02-08 | Dispenser, and refill |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1115123.0 | 2011-09-01 | ||
GB1115123.0A GB2494173A (en) | 2011-09-01 | 2011-09-01 | Dispensing apparatus |
US13/591,965 US9636431B2 (en) | 2011-09-01 | 2012-08-22 | Dispenser, and refill |
US15/427,931 US20170143865A1 (en) | 2011-09-01 | 2017-02-08 | Dispenser, and refill |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/591,965 Division US9636431B2 (en) | 2011-09-01 | 2012-08-22 | Dispenser, and refill |
Publications (1)
Publication Number | Publication Date |
---|---|
US20170143865A1 true US20170143865A1 (en) | 2017-05-25 |
Family
ID=44882074
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/591,965 Active 2033-07-21 US9636431B2 (en) | 2011-09-01 | 2012-08-22 | Dispenser, and refill |
US15/427,931 Abandoned US20170143865A1 (en) | 2011-09-01 | 2017-02-08 | Dispenser, and refill |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/591,965 Active 2033-07-21 US9636431B2 (en) | 2011-09-01 | 2012-08-22 | Dispenser, and refill |
Country Status (5)
Country | Link |
---|---|
US (2) | US9636431B2 (en) |
EP (1) | EP2564878B1 (en) |
CA (1) | CA2788204A1 (en) |
ES (1) | ES2593280T3 (en) |
GB (1) | GB2494173A (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9453330B2 (en) | 2012-10-29 | 2016-09-27 | Xela Innovations, Llc | Fixture cleaning and deodorizing apparatus and method of use |
US9663932B2 (en) | 2012-10-29 | 2017-05-30 | Xela Innovations, Llc | Fixture cleaning and deodorizing apparatus and method of use |
US8889082B2 (en) * | 2013-03-15 | 2014-11-18 | San Jamar, Inc. | Apparatus for metered dose of odor control substance |
US11818956B2 (en) | 2019-04-01 | 2023-11-14 | Anya L. Getman | Piezoelectric adaptive mesh |
WO2016019074A1 (en) | 2014-07-30 | 2016-02-04 | Georgia-Pacific Consumer Products Lp | Air freshener dispensers, cartridges therefor, systems, and methods |
EP3349803A2 (en) * | 2015-09-16 | 2018-07-25 | Good Air AG | Air-freshener device |
GB2578127B (en) | 2018-10-17 | 2022-11-23 | Vectair Systems Ltd | Fluid dispenser |
WO2020232285A1 (en) | 2019-05-16 | 2020-11-19 | Dispensing Dynamics International, Inc. | Fragrance dispensers and methods |
USD936195S1 (en) | 2019-10-25 | 2021-11-16 | Xela Innovations, Llc | Dispenser |
US11089915B2 (en) | 2019-10-25 | 2021-08-17 | Xela Innovations, Llc | Dispenser for use with refill cartridge |
US11897008B2 (en) | 2020-03-19 | 2024-02-13 | Nch Corporation | Composition, system, and method for automatic dosing of a urinal cleaner |
US11709084B2 (en) * | 2020-06-29 | 2023-07-25 | Delaware Capital Formation, Inc. | Multi-reservoir liquid dispenser and associated methods |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5297734A (en) * | 1990-10-11 | 1994-03-29 | Toda Koji | Ultrasonic vibrating device |
US6062425A (en) * | 1993-03-01 | 2000-05-16 | Fresh Products, Inc. | Dual dispenser, supply unit, and method |
US6659364B1 (en) * | 1999-02-15 | 2003-12-09 | The Technology Partnership, Plc | Droplet generation method and device |
WO2007062698A1 (en) * | 2005-11-30 | 2007-06-07 | Microflow Engineering S.A. | Volatile liquid droplet dispenser device |
US20080265067A1 (en) * | 2004-07-29 | 2008-10-30 | Aerstream Technology Limited | Replaceable Reservoir |
US20100001090A1 (en) * | 2008-07-03 | 2010-01-07 | Arthur Hampton Neergaard | Liquid Particle Emitting Device |
US20100108780A1 (en) * | 2008-10-31 | 2010-05-06 | Joshi Ashok V | Liquid atomization device and method |
US20100206306A1 (en) * | 2009-02-10 | 2010-08-19 | Ep Systems Sa | Self-sensing dispensing device |
WO2012114230A1 (en) * | 2011-02-25 | 2012-08-30 | Koninklijke Philips Electronics N.V. | An aerosol generating device for nebulizing a liquid and a method of temperature control of a liquid to be nebulized |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59222246A (en) * | 1983-05-27 | 1984-12-13 | Matsushita Electric Ind Co Ltd | Atomizing apparatus |
JPS6197066A (en) * | 1984-10-18 | 1986-05-15 | Matsushita Electric Ind Co Ltd | Spray device |
US4830791A (en) | 1988-02-29 | 1989-05-16 | Scentex, Inc. | Odor control device |
CA2393640C (en) * | 1999-12-10 | 2006-09-05 | Pfizer Products Inc. | Pyrrolo[2,3-d]pyrimidine compounds |
GB2392439B (en) | 2002-08-30 | 2004-11-03 | Vectair Systems Ltd | Dispenser |
GB2392440B (en) | 2002-08-30 | 2004-11-03 | Vectair Systems Ltd | Programmable dispenser |
GB2392438B (en) | 2002-08-30 | 2006-11-15 | Vectair Systems Ltd | Programmable dispenser |
US20080314930A1 (en) * | 2006-04-26 | 2008-12-25 | Green Theodore A | Liquid container valve system |
-
2011
- 2011-09-01 GB GB1115123.0A patent/GB2494173A/en not_active Withdrawn
-
2012
- 2012-08-22 US US13/591,965 patent/US9636431B2/en active Active
- 2012-08-28 EP EP12181952.8A patent/EP2564878B1/en not_active Not-in-force
- 2012-08-28 ES ES12181952.8T patent/ES2593280T3/en active Active
- 2012-08-31 CA CA2788204A patent/CA2788204A1/en not_active Abandoned
-
2017
- 2017-02-08 US US15/427,931 patent/US20170143865A1/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5297734A (en) * | 1990-10-11 | 1994-03-29 | Toda Koji | Ultrasonic vibrating device |
US6062425A (en) * | 1993-03-01 | 2000-05-16 | Fresh Products, Inc. | Dual dispenser, supply unit, and method |
US6659364B1 (en) * | 1999-02-15 | 2003-12-09 | The Technology Partnership, Plc | Droplet generation method and device |
US20080265067A1 (en) * | 2004-07-29 | 2008-10-30 | Aerstream Technology Limited | Replaceable Reservoir |
WO2007062698A1 (en) * | 2005-11-30 | 2007-06-07 | Microflow Engineering S.A. | Volatile liquid droplet dispenser device |
US9604242B2 (en) * | 2005-11-30 | 2017-03-28 | Aptar France Sas | Volatile liquid droplet dispenser device |
US20100001090A1 (en) * | 2008-07-03 | 2010-01-07 | Arthur Hampton Neergaard | Liquid Particle Emitting Device |
US20100108780A1 (en) * | 2008-10-31 | 2010-05-06 | Joshi Ashok V | Liquid atomization device and method |
US20100206306A1 (en) * | 2009-02-10 | 2010-08-19 | Ep Systems Sa | Self-sensing dispensing device |
WO2012114230A1 (en) * | 2011-02-25 | 2012-08-30 | Koninklijke Philips Electronics N.V. | An aerosol generating device for nebulizing a liquid and a method of temperature control of a liquid to be nebulized |
Also Published As
Publication number | Publication date |
---|---|
US9636431B2 (en) | 2017-05-02 |
GB201115123D0 (en) | 2011-10-19 |
CA2788204A1 (en) | 2013-03-01 |
GB2494173A (en) | 2013-03-06 |
EP2564878B1 (en) | 2016-09-14 |
EP2564878A1 (en) | 2013-03-06 |
US20130056552A1 (en) | 2013-03-07 |
ES2593280T3 (en) | 2016-12-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20170143865A1 (en) | Dispenser, and refill | |
RU2585957C2 (en) | Method for dispensing fluids | |
AU2002343237B2 (en) | Foam dispenser, housing and storage holder therefor | |
US6533145B2 (en) | Self-contained viscous liquid dispenser | |
RU2479694C2 (en) | Flushing device with capability to control amount of reactant | |
US20100205731A1 (en) | Toilet flusher with the time-offset release of two substances | |
CA2429358C (en) | Self-contained viscous liquid dispenser | |
US8091738B2 (en) | Manual skin-care product dispenser | |
US9687122B2 (en) | Mini pump with compressible air inlet chamber for providing residual suck-back | |
US8510872B2 (en) | Toilet flusher having a low-viscosity substance | |
RU2613598C2 (en) | Portable refillable cream dispenser | |
WO2006004819A3 (en) | Delivery system | |
US9072411B2 (en) | Air-vented liquid dispensers and refill units therefor | |
RU2013104178A (en) | DEVICES AND METHODS FOR IMPROVED DELIVERY OF VOLATILE FLUIDS | |
US20130019992A1 (en) | Filling system for filling a travel dispenser | |
JP2022508893A (en) | Fluid distributor | |
FR2784358B1 (en) | PERIPHERAL DELIVERY MODE DISPENSER | |
US20100205730A1 (en) | Toilet Cleaner Dispenser with Directed Substance Release | |
KR100896433B1 (en) | A deodorant humidifier | |
JP2009297098A (en) | Fragrance apparatus | |
KR200166312Y1 (en) | Perfume injection Appratus | |
KR200453718Y1 (en) | Sprsy apparatus of Many function an aromatic | |
KR20090013850A (en) | A scent diffusion apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: VECTAIR SYSTEMS LIMITED, UNITED KINGDOM Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TEELING, MATTHEW;WONNACOTT, PAUL;REEL/FRAME:041400/0187 Effective date: 20120821 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |