WO1991005731A1 - Cartridge system for dispensing predetermined ratios of semi-liquid materials - Google Patents

Cartridge system for dispensing predetermined ratios of semi-liquid materials Download PDF

Info

Publication number
WO1991005731A1
WO1991005731A1 PCT/US1990/005889 US9005889W WO9105731A1 WO 1991005731 A1 WO1991005731 A1 WO 1991005731A1 US 9005889 W US9005889 W US 9005889W WO 9105731 A1 WO9105731 A1 WO 9105731A1
Authority
WO
WIPO (PCT)
Prior art keywords
cartridge
seal
cartridges
lip
semi
Prior art date
Application number
PCT/US1990/005889
Other languages
French (fr)
Inventor
George J. Duckworth
Richard W. Clemens
Original Assignee
Plas-Pak Industries, Inc.
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 Plas-Pak Industries, Inc. filed Critical Plas-Pak Industries, Inc.
Publication of WO1991005731A1 publication Critical patent/WO1991005731A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
    • B05C17/00579—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container comprising means for allowing entrapped air to escape to the atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/325—Containers having parallel or coaxial compartments, provided with a piston or a movable bottom for discharging contents

Definitions

  • the present invention relates to means for dispensing semi-liquid materials generally and, more particularly, to a novel system for dispensing two such materials simultaneously and in a predetermined ratio .
  • the materials may include reactive, two-component adhesives, sealants, coatings, or potting compounds, in which adhesive one material may comprise a resin compound and the other material a catalyst.
  • the chemical families of such materials include epoxies, acrylics, silicones , polyesters, urethanes, polyurethane foams, and hybrid and reactive elastomers and adhesives.
  • the seals thereof do not provide thorough wiping of the bore of the cartridges and, therefore, the seals may freeze in place, due to hardening of the materials that leak past them, or hazardous materials may be released into the surrounding environment from leakage around the seals. Also, in known such cartridges, there is no satisfactory provision for venting air from the cartridges as the seals are inserted therein after filing of the cartridges.
  • Another object of the invention is to provide a seal for a cartridge for dispensing semi-liquid material which seal includes means for ensuring thorough wiping of the inner surface of the cartridge.
  • An additional object of the invention is to provide a cartridge for dispensing semi-liquid material which cartridge includes means for venting air from the cartridge as a seal is inserted into the cartridge after filling of the cartridge.
  • a further object of the invention is to provide a system for dispensing semi-liquid materials in predetermined ratios which system is economically manufactured and has easily changed ratios.
  • the present invention accomplishes the above objects, among others, and substantially overcomes the disadvantages of conventional devices by providing, in a preferred embodiment, a system for dispensing semi- liquid materials in predetermined ratios, which system includes two cartridges having the same or selected different diameters, but proportional to the ratio of the materials to be dispensed, the cartridges being rigidly snapped together by means of interfitting male and female elements.
  • a seal for a cartridge for dispensing semi-liquid material which seal includes a resilient wiping lip formed around the outer periphery of the seal.
  • a cartridge for dispensing semi-liquid material which cartridge includes grooves formed in the inner wall thereof extending inwardly a distance from the edge of the filling end thereof s that air may readily be expelled from the cartridge as the seal is inserted after filling of the cartridge.
  • Figure 1 is a perspective view of the system of the present invention fitted with a motionless mixer and inserted in a cartridge gun.
  • Figure 2 is a partially cross-sectional view of the system of Figure 1.
  • Figure 3 is a side elevation view, in cross- section, of a seal with a wiping lip, according to the present invention.
  • Figure 4 is a partial front elevation view, in cross-section, showing the means by which the filling ends of the cartridge tubes are snapped together, according to the present invention.
  • Figure 5 is a front elevation view, partially in cross-section, showing the means by which the dispensing ends of the cartridge tube are snapped together, according to the present invention.
  • Figure 6 is a perspective view of the filling end of a cartridge showing venting means, according to the present invention.
  • Figure 1 shows the system of the present invention, generally indicated by the reference numeral 10, mounted in a cartridge gun, generally indicated by the reference numeral 12.
  • System 10 is shown as being fitted with a motionless mixer 28, the function of which will be discussed below.
  • system 10 is shown mounted in a manual, trigger-activated cartridge gun 12, the system may be used as well with conventional pneumatic or screw- advance cartridge guns or it may be used as well with various types of conventional bench-mounted metering systems.
  • system 10 includes cartridges 14 and 16 snap fitted together as will be described in more detail below. It can be seen that the respective -diameters of cartridges 14 and 16 have been selected so that the cross-sectional area of cartridge 14 is about twice that of cartridge 16, the result of that selection being that twice as much material will be dispensed from cartridge 14 than will be dispensed from cartridge 16 when system 10 is placed in gun 12 ( Figure 1) having parallel, coacting plungers.
  • Cartridge 14 includes a seal 18 for insertion in the filling end of the cartridge and, at the dispensing end of the cartridge, there is formed an outlet nozzle 20.
  • cartridge 16 includes a seal 22 for insertion in the filling end of the cartridge and an outlet nozzle 24 formed at the dispensing end of the cartridge. It can be seen that outlet nozzles 20 and 24 each form one-half of a threaded structure over which a bonnet 26 may be threadedly advanced to secure motionless mixer 28 to the dispensing ends of cartridges 14 and 16.
  • Motionless mixer 28 when used, provides thorough mixing of the materials dispensed from cartridges 14 and 16 and is preferably disposable. Motionless mixer 28 need not be used with system 10, however, and, when not so used, the materials will be dispensed directly from outlet nozzles 20 and 24 and will require a separate mixing step . When system 10 is not in use, outlet nozzles 20 and 24 may be sealed, respectively, by means of removable end plugs 30 and 32 inserted thereinto.
  • Figure 3 is a side elevation view, in cross- section, of a seal 38 which may be used in system 10 or may be used in any cartridge.
  • Seal 38 includes a cylindrical shell 40, a flat end portion 42 which bears against the material being dispensed (not shown), a reinforcing structure 44, integral with end portion 42, against which may bear, for example, a piston of a cartridge gun (not shown), and an open end 46 into which the piston may be inserted.
  • the outer surface of cylindrical shell 40 is not of uniform diameter , but the portion thereof adjacent end 42 flares outwardly to form a circumferential resilient lip 48 extending beyond the straight portion of the shell when the lip is in its natural position shown on Figure 3, with the outer portion of the lip terminating in a pointed annular ridge 50 facing outwardly from the central axis of seal 38.
  • seal 38 When seal 38 is inserted in a cartridge, such as seal 18 on Figure 2 inserted in cartridge 14, the lip would be compressed inward with ridge 50 contacting the inner surface of the cartridge and thoroughly wiping the inner surface as material is dispensed from the cartridge.
  • Lip 48 is given resilience, in part, by means of a trough 52 defined in seal 38 between the lip and end portion 42.
  • material in the tube is substantially prevented from flowing past seal 38 as material is dispensed from the cartridge, by virtue of lip 48 and ridge 50.
  • the contact between ridge 50 and the inner surface of the cartridge in which seal 38 is inserted also aids in preventing solvent in the material from evaporating.
  • Reference to Figures 2 and 4 will illustrate how the filling ends of cartridges 14 and 16 are snapped together.
  • a rectangular male pin 60 having a head portion larger than the base portion, formed on the outer wall of cartridge 14 can fit into a female receptacle 62, having a complementary shape, defined in cartridge 16, by means of temporary deformation of the pin as elements 60 and 62 are joined. It will be understood that the tapers of elements 60 and 62 are shown somewhat exaggerated for clarity .
  • FIG. 5 will illustrate how the dispensing ends of cartridges 14 and 16 are snapped together.
  • mating bosses 64 and 66 are formed, respectively, on outlet nozzles 20 and 24.
  • a round male pin 68 having a head portion larger than its base portion, formed on boss 64, can fit grippingly into a complementary female receptacle 70 defined in boss 66.
  • a round male pin 72 having a head portion larger than its base portion, formed on boss 66, can fit grippingly into a complementary female receptacle 74 defined in boss 64.
  • Pins 68 and 72 are inserted into receptacles 70 and 74, respectively, by means of temporary deformation of the pins.
  • the tapers of elements 68, 70, 72, and 74 are shown somewhat exaggerated for clarity.
  • a cartridge 82 has a plurality of slots, as at 84, defined in the inner surface thereof. Slots 84 extend from the edge 86 of the filling end of cartridge 82 a distance inwardly from the filling end, the distance being approximately equal to the distance a seal (not shown) is to be inserted therein. It will be understood that, after cartridge 82 is filled with semi-liquid material (not shown), the seal would be inserted into the filling end thereof and air would be expelled from the cartridge through slots 84 as the seal is inserted.
  • This arrangement allows the use of a closely fitting seal, such as seal 38 on Figure 3, and also prevents the trapping of air within a cartridge which would tend to dry out or, in come cases, catalyze the hardening of, the material in the cartridge.
  • system 10 may be conveniently and economically manufactured by injection molding and preferably are manufactured by injection molding of high density polyethylene.

Abstract

The present invention relates to a system for dispensing semi-liquid materials simultaneously and in a predetermined ratio while preventing hazardous leakage to the environment. The present invention overcomes the disadvantages of conventional devices by providing a system which includes two cartridges (14, 16) having the same or selected different diameters, the cartridges being rigidly snapped together by interfitting male and female elements (60, 62, 68, 70, 72, 74). A seal (38) is also provided for each of the cartridges which includes a resilient wiping lip (48) formed around the outer periphery of the seal. Venting grooves are also provided in the inner wall of the cartridge so that air may readily be expelled from the cartridge as the seal is inserted.

Description

Description
Cartridge System for Dispensing Predetermined Ratios of Semi-Liquid Materials
Technical Field
The present invention relates to means for dispensing semi-liquid materials generally and, more particularly, to a novel system for dispensing two such materials simultaneously and in a predetermined ratio .
Background Art
There are a number of circumstances in which it is desirable to dispense semi-liquid materials in a predetermined ratio. The materials may include reactive, two-component adhesives, sealants, coatings, or potting compounds, in which adhesive one material may comprise a resin compound and the other material a catalyst. The chemical families of such materials include epoxies, acrylics, silicones , polyesters, urethanes, polyurethane foams, and hybrid and reactive elastomers and adhesives.
In some cases, particularly in the past, it was necessary to separately dispense one of two materials and then the other and then to mix them. Various devices have been developed to simultaneously dispense the materials in preselected ratios. These devices generally comprise two cylindrical cartridges, or a single cartridge having two cylindrical bores, for insertion in a cartridge gun which typically has two plungers which move together against seals in one end of the cartridges to dispense the materials from nozzles in the other end of the cartridges. The latter type of cartridge has the disadvantage that the manufacturer must inventory a supply of cartridges for each ratio of materials. Some of the former types provide for the use of different size cartridges, but the cartridges thereof are poorly joined together.
In all known such cartridges, the seals thereof do not provide thorough wiping of the bore of the cartridges and, therefore, the seals may freeze in place, due to hardening of the materials that leak past them, or hazardous materials may be released into the surrounding environment from leakage around the seals. Also, in known such cartridges, there is no satisfactory provision for venting air from the cartridges as the seals are inserted therein after filing of the cartridges.
Accordingly, it is a principal object of the present invention to provide a cartridge system for the dispensing of semi-liquid materials in predetermined ratios which system includes two cartridges of selected diameters rigidly fastened together.
Another object of the invention is to provide a seal for a cartridge for dispensing semi-liquid material which seal includes means for ensuring thorough wiping of the inner surface of the cartridge. An additional object of the invention is to provide a cartridge for dispensing semi-liquid material which cartridge includes means for venting air from the cartridge as a seal is inserted into the cartridge after filling of the cartridge.
A further object of the invention is to provide a system for dispensing semi-liquid materials in predetermined ratios which system is economically manufactured and has easily changed ratios. Other objects of the present invention, as well as particular features and advantages thereof, will be elucidated in, or apparent from, the following description and the accompanying drawing figures.
Disclosure of Invention
The present invention accomplishes the above objects, among others, and substantially overcomes the disadvantages of conventional devices by providing, in a preferred embodiment, a system for dispensing semi- liquid materials in predetermined ratios, which system includes two cartridges having the same or selected different diameters, but proportional to the ratio of the materials to be dispensed, the cartridges being rigidly snapped together by means of interfitting male and female elements. In another aspect of the invention, there is provided a seal for a cartridge for dispensing semi-liquid material which seal includes a resilient wiping lip formed around the outer periphery of the seal. In a further aspect of the invention, there is provided a cartridge for dispensing semi-liquid material which cartridge includes grooves formed in the inner wall thereof extending inwardly a distance from the edge of the filling end thereof s that air may readily be expelled from the cartridge as the seal is inserted after filling of the cartridge.
Brief Description of Drawings Figure 1 is a perspective view of the system of the present invention fitted with a motionless mixer and inserted in a cartridge gun.
Figure 2 is a partially cross-sectional view of the system of Figure 1. Figure 3 is a side elevation view, in cross- section, of a seal with a wiping lip, according to the present invention.
Figure 4 is a partial front elevation view, in cross-section, showing the means by which the filling ends of the cartridge tubes are snapped together, according to the present invention.
Figure 5 is a front elevation view, partially in cross-section, showing the means by which the dispensing ends of the cartridge tube are snapped together, according to the present invention.
Figure 6 is a perspective view of the filling end of a cartridge showing venting means, according to the present invention.
Best Mode for Carrying Out the Invention
Referring now to the Drawing, in which the same elements have consistent identifying numerals throughout the various figures, reference should first be made to Figure 1 which shows the system of the present invention, generally indicated by the reference numeral 10, mounted in a cartridge gun, generally indicated by the reference numeral 12. System 10 is shown as being fitted with a motionless mixer 28, the function of which will be discussed below.
While system 10 is shown mounted in a manual, trigger-activated cartridge gun 12, the system may be used as well with conventional pneumatic or screw- advance cartridge guns or it may be used as well with various types of conventional bench-mounted metering systems. Referring now also to Figure 2, system 10 includes cartridges 14 and 16 snap fitted together as will be described in more detail below. It can be seen that the respective -diameters of cartridges 14 and 16 have been selected so that the cross-sectional area of cartridge 14 is about twice that of cartridge 16, the result of that selection being that twice as much material will be dispensed from cartridge 14 than will be dispensed from cartridge 16 when system 10 is placed in gun 12 (Figure 1) having parallel, coacting plungers. It will be understood that any desired ratio of cross-sectional areas may be chosen and that, regardless of the ratio chosen, the function of the various elements of system 10 will be unchanged. Cartridge 14 includes a seal 18 for insertion in the filling end of the cartridge and, at the dispensing end of the cartridge, there is formed an outlet nozzle 20. Likewise, cartridge 16 includes a seal 22 for insertion in the filling end of the cartridge and an outlet nozzle 24 formed at the dispensing end of the cartridge. It can be seen that outlet nozzles 20 and 24 each form one-half of a threaded structure over which a bonnet 26 may be threadedly advanced to secure motionless mixer 28 to the dispensing ends of cartridges 14 and 16.
Motionless mixer 28, when used, provides thorough mixing of the materials dispensed from cartridges 14 and 16 and is preferably disposable. Motionless mixer 28 need not be used with system 10, however, and, when not so used, the materials will be dispensed directly from outlet nozzles 20 and 24 and will require a separate mixing step . When system 10 is not in use, outlet nozzles 20 and 24 may be sealed, respectively, by means of removable end plugs 30 and 32 inserted thereinto. Figure 3 is a side elevation view, in cross- section, of a seal 38 which may be used in system 10 or may be used in any cartridge. Seal 38 includes a cylindrical shell 40, a flat end portion 42 which bears against the material being dispensed (not shown), a reinforcing structure 44, integral with end portion 42, against which may bear, for example, a piston of a cartridge gun (not shown), and an open end 46 into which the piston may be inserted. It can be seen that the outer surface of cylindrical shell 40 is not of uniform diameter , but the portion thereof adjacent end 42 flares outwardly to form a circumferential resilient lip 48 extending beyond the straight portion of the shell when the lip is in its natural position shown on Figure 3, with the outer portion of the lip terminating in a pointed annular ridge 50 facing outwardly from the central axis of seal 38. When seal 38 is inserted in a cartridge, such as seal 18 on Figure 2 inserted in cartridge 14, the lip would be compressed inward with ridge 50 contacting the inner surface of the cartridge and thoroughly wiping the inner surface as material is dispensed from the cartridge. Lip 48 is given resilience, in part, by means of a trough 52 defined in seal 38 between the lip and end portion 42. Thus, material in the tube is substantially prevented from flowing past seal 38 as material is dispensed from the cartridge, by virtue of lip 48 and ridge 50. The contact between ridge 50 and the inner surface of the cartridge in which seal 38 is inserted also aids in preventing solvent in the material from evaporating. Reference to Figures 2 and 4 will illustrate how the filling ends of cartridges 14 and 16 are snapped together. Here, it can be seen that a rectangular male pin 60, having a head portion larger than the base portion, formed on the outer wall of cartridge 14 can fit into a female receptacle 62, having a complementary shape, defined in cartridge 16, by means of temporary deformation of the pin as elements 60 and 62 are joined. It will be understood that the tapers of elements 60 and 62 are shown somewhat exaggerated for clarity .
Reference to Figure 5 will illustrate how the dispensing ends of cartridges 14 and 16 are snapped together. Here, it can be seen that mating bosses 64 and 66 are formed, respectively, on outlet nozzles 20 and 24. A round male pin 68, having a head portion larger than its base portion, formed on boss 64, can fit grippingly into a complementary female receptacle 70 defined in boss 66. Likewise, a round male pin 72, having a head portion larger than its base portion, formed on boss 66, can fit grippingly into a complementary female receptacle 74 defined in boss 64. Pins 68 and 72 are inserted into receptacles 70 and 74, respectively, by means of temporary deformation of the pins. Again, it will be understood that the tapers of elements 68, 70, 72, and 74 are shown somewhat exaggerated for clarity.
Thus, having three points of attachment between cartridges 14 and 16, with one point of attachment in the plane common to the central axes of the cartridges and two points of attachment perpendicular to and spaced apart from the common plane, secures the cartridges against relative axial movement, relative rotational movement, and relative twisting movement. The respective elements which allow the snapping together of cartridges according to the present invention have identical dimensions for all sizes of cartridges to permit any selected ratio of sizes thereof to be chosen within the range of cartridges provided. A pair of joined cartridges may also be separated relatively easily, if desired, without damage thereto, and the cartridges may then be joined to other cartridges. Figure 6 shows the means of venting a cartridge after filling. Here, a cartridge 82, of the type described above, has a plurality of slots, as at 84, defined in the inner surface thereof. Slots 84 extend from the edge 86 of the filling end of cartridge 82 a distance inwardly from the filling end, the distance being approximately equal to the distance a seal (not shown) is to be inserted therein. It will be understood that, after cartridge 82 is filled with semi-liquid material (not shown), the seal would be inserted into the filling end thereof and air would be expelled from the cartridge through slots 84 as the seal is inserted. This arrangement allows the use of a closely fitting seal, such as seal 38 on Figure 3, and also prevents the trapping of air within a cartridge which would tend to dry out or, in come cases, catalyze the hardening of, the material in the cartridge.
The various elements of system 10 may be conveniently and economically manufactured by injection molding and preferably are manufactured by injection molding of high density polyethylene.
It will thus be seen that the objects set forth above, among those made apparent from the preceding description, are efficiently attained and, since certain changes may be made in the above construction without departing from the scope of the invention, it is intended that all matter contained in the above description or shown on the accompanying drawing figures shall be interpreted as illustrative only and not in a limiting sense.
It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

Claims

Claims
1. A cartridge system for use in simultaneously dispensing a predetermined ratio of semi-liquid materials, comprising:
(a) two cylindrical cartridges having selected cross-sectional areas in proportion to said predetermined ratio, each said cartridge having a first, open, filling end and a second, closed, dispensing end with an outlet nozzle formed therein;
(b) each said cartridge having a seal slidingly disposed in the bore thereof to cause a semi- liquid material to be dispensed from said outlet nozzle when force is applied to said seal; and
(c) attachment means to rigidly snap together said two cartridges.
2. A system, as defined in Claim 1, wherein said attachment means comprises a plurality of male pins and female receptacles disposed in opposing pairs, each said opposing pair comprising one said male pin protruding from one of two mating surfaces of said two cartridges and one said female receptacle defined in the other of said two mating surfaces of said two cartridges, such that, when said surfaces are mated, said male pin is grippingly held within said female receptacle.
3. A system, as defined in Claim 2, wherein said male pins have head portions larger than their base portions and said female receptacles have dimensions complementary to the dimensions of said male pins, such that said male pins may be snappingly inserted into said female receptacles my means of temporary deformation of said male pins as said male pins are being inserted into said female receptacles.
4. A system, as defined in Claim 2, wherein one of said opposing pairs is disposed in proximity to said first ends of said cartridges and at least one of said opposing pairs is disposed in proximity to said second ends of said cartridges.
5. A system, as defined in Claim 4, further comprising :
(a) said mating surfaces include surfaces of bosses formed at said second ends; and (b) two pairs of said opposing pairs connect said bosses, such that said two pairs of said opposing pairs lie spaced apart substantially on a plane orthogonal to a plane on which the longitudinal axes of said cartridges lie.
6. A system, as defined in Claim 1, wherein each of said seals comprises:
(a) a generally hollow, cylindrical shell portion having an open, first end and a closed, second end having a flat portion orthogonal to the major axis of said cylindrical shell portion; and
(b) said cylindrical shell portion having an outwardly facing lip formed around, and extending beyond, the outer periphery thereof .
7. A system, as defined in Claim 6, wherein the outer periphery of said lip terminates in an outwardly facing, pointed ridge.
8. A system, as defined in Claim 6, wherein said lip is in proximity to said second end of said seal.
9. A system, as defined in Claim 8, further comprising an annular trough defined between said lip and said flat portion.
10. A system, as defined in Claim 6, further comprising a reinforcing structure formed integrally with said flat portion within said cylindrical portion.
11. A system, as defined in Claim 1, further comprising at least one venting channel defined in the inner periphery of each said cartridge, said at least one venting channel extending inwardly from the edge of said filling end.
12. A system, as defined in Claim 11, wherein said at least one venting channel extends inwardly a distance approximately equal to the distance said seal would be inserted in said each said cartridge.
13. A seal for axial movement within a cartridge to dispense a semi-liquid material from said cartridge when force is applied to said seal, comprising: (a) a generally hollow, cylindrical shell portion having an open, first end and a closed, second end having a flat portion orthogonal to the major axis of said cylindrical shell portion; and (b) said cylindrical shell portion having an outwardly facing lip formed around, and extending beyond, the outer periphery thereof .
14. A seal, as defined in Claim 13, wherein the outer periphery of seid lip terminates in an outwardly facing, pointed ridge.
15. A seal, as defined in Claim 13, wherein said lip is disposed in proximity to said second end of said seal.
16. A seal, as defined in Claim 15, further comprising an annular trough defined between said lip and said flat portion.
17. A seal, as defined in Claim 13, further comprising a reinforcing structure formed integrally with said flat portion within said cylindrical portion.
18. A self-venting cartridge for expelling air therefrom when a seal is inserted therein after filling of said cartridge with a semi-liquid material, said cartridge comprising: (a) a cylindrical body having an open filling end; and (b) at least one channel defined in the inner surface of said cylindrical body, said channel extending inwardly from the edge of said filling end.
19. A self-venting cartridge, as defined in Claim 18, wherein said channel extends inwardly a distance approximately equal to the distance said seal would be inserted after said filling of said cartridge.
20. Every novel system, apparatus, method, or article disclosed herein.
PCT/US1990/005889 1989-10-16 1990-10-15 Cartridge system for dispensing predetermined ratios of semi-liquid materials WO1991005731A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42223589A 1989-10-16 1989-10-16
US422,235 1989-10-16

Publications (1)

Publication Number Publication Date
WO1991005731A1 true WO1991005731A1 (en) 1991-05-02

Family

ID=23673965

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/005889 WO1991005731A1 (en) 1989-10-16 1990-10-15 Cartridge system for dispensing predetermined ratios of semi-liquid materials

Country Status (1)

Country Link
WO (1) WO1991005731A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5318203A (en) * 1993-07-01 1994-06-07 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Dual chamber dispenser
EP0607102A1 (en) * 1993-01-15 1994-07-20 Wilhelm A. Keller Dispensing appliance for at least two components
US5386928A (en) * 1993-11-15 1995-02-07 Minnesota Mining And Manufacturing Company Dual collapsible tube dispensing assembly
US5577637A (en) * 1994-09-01 1996-11-26 Vosschemie Gmbh Cutting-off device for stock materials packed in can-like containers, more particularly filler materials and putties and hardener pastes
US5823391A (en) * 1996-09-04 1998-10-20 Owens-Brockway Plastic Products Inc. Dual chamber flexible tube dispensing package and method of making
EP1208918A1 (en) 2000-09-25 2002-05-29 Ernst Mühlbauer Kg Device for discharging two substances at constant proportion, particularly for dental purposes
WO2002094683A1 (en) * 2001-05-22 2002-11-28 Dentsply International Inc. A package for a dental material
US6612465B2 (en) 2000-10-13 2003-09-02 Dentsply Research & Development Corp. Multi-component mixing storage and dispensing device
WO2006060628A1 (en) * 2004-12-03 2006-06-08 Dentsply International Inc. Package and dispensing system
EP1728560A1 (en) * 2005-06-03 2006-12-06 3M Innovative Properties Company System for storing and dispensing of a substance
WO2010145932A1 (en) * 2009-06-18 2010-12-23 Sulzer Mixpac Ag Multi-component cartridge having a ventilation device
EP2546166A1 (en) 2011-07-15 2013-01-16 Sulzer Mixpac AG Slack rope valve
EP2868395A3 (en) * 2013-10-31 2015-07-29 Nordson Corporation Side by side cartridge assemblies and related methods
US9844796B2 (en) 2005-10-14 2017-12-19 3M Innovative Properties Company Plunger and plunger assembly for a cartridge, system for storing a substance, and method of filling and sealing a substance in a delivery system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366265A (en) * 1966-05-09 1968-01-30 Best Plastics Inc Multiple unit package
US4169547A (en) * 1976-10-26 1979-10-02 Glaxo Laboratories Limited Ointment container with finger actuated piston
US4260077A (en) * 1979-10-04 1981-04-07 Aelco Corporation Dual separable dispenser
US4560352A (en) * 1982-11-04 1985-12-24 Espe Fabrik Pharmazeutischer Praparate Gmbh Dispenser for metering dental compositions
US4830229A (en) * 1986-07-16 1989-05-16 Metal Box P.L.C. Pump chamber dispenser
US4836423A (en) * 1988-04-26 1989-06-06 Anchor Hocking Corporation Pump dispenser package

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366265A (en) * 1966-05-09 1968-01-30 Best Plastics Inc Multiple unit package
US4169547A (en) * 1976-10-26 1979-10-02 Glaxo Laboratories Limited Ointment container with finger actuated piston
US4260077A (en) * 1979-10-04 1981-04-07 Aelco Corporation Dual separable dispenser
US4560352A (en) * 1982-11-04 1985-12-24 Espe Fabrik Pharmazeutischer Praparate Gmbh Dispenser for metering dental compositions
US4830229A (en) * 1986-07-16 1989-05-16 Metal Box P.L.C. Pump chamber dispenser
US4836423A (en) * 1988-04-26 1989-06-06 Anchor Hocking Corporation Pump dispenser package

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607102A1 (en) * 1993-01-15 1994-07-20 Wilhelm A. Keller Dispensing appliance for at least two components
US5477987A (en) * 1993-01-15 1995-12-26 Keller; Wilhelm A. Dispensing appliance for at least two components
US5318203A (en) * 1993-07-01 1994-06-07 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Dual chamber dispenser
US5386928A (en) * 1993-11-15 1995-02-07 Minnesota Mining And Manufacturing Company Dual collapsible tube dispensing assembly
EP0653247B1 (en) * 1993-11-15 2000-09-20 Minnesota Mining And Manufacturing Company Dual collapsible tube dispensing assembly
US5577637A (en) * 1994-09-01 1996-11-26 Vosschemie Gmbh Cutting-off device for stock materials packed in can-like containers, more particularly filler materials and putties and hardener pastes
US5823391A (en) * 1996-09-04 1998-10-20 Owens-Brockway Plastic Products Inc. Dual chamber flexible tube dispensing package and method of making
US6063223A (en) * 1996-09-04 2000-05-16 Owens-Brockway Plastic Products Inc. Dual chamber flexible tube dispensing package and method of making
EP1208918A1 (en) 2000-09-25 2002-05-29 Ernst Mühlbauer Kg Device for discharging two substances at constant proportion, particularly for dental purposes
US6612465B2 (en) 2000-10-13 2003-09-02 Dentsply Research & Development Corp. Multi-component mixing storage and dispensing device
WO2002094683A1 (en) * 2001-05-22 2002-11-28 Dentsply International Inc. A package for a dental material
JP2008521572A (en) * 2004-12-03 2008-06-26 デンツプライ インターナショナル インコーポレーテッド Package and distribution device
WO2006060628A1 (en) * 2004-12-03 2006-06-08 Dentsply International Inc. Package and dispensing system
EP2080714A1 (en) * 2004-12-03 2009-07-22 Dentsply International Inc. Package and dispensing system
EP1728560A1 (en) * 2005-06-03 2006-12-06 3M Innovative Properties Company System for storing and dispensing of a substance
WO2006132932A1 (en) * 2005-06-03 2006-12-14 3M Innovative Properties Company System for storing and dispensing of a substance
US10279935B2 (en) 2005-10-14 2019-05-07 3M Innovative Properties Company Plunger and plunger assembly for a cartridge, system for storing a substance, and method of filing and sealing a substance in a delivery system
US9844796B2 (en) 2005-10-14 2017-12-19 3M Innovative Properties Company Plunger and plunger assembly for a cartridge, system for storing a substance, and method of filling and sealing a substance in a delivery system
US8640922B2 (en) 2009-06-18 2014-02-04 Sulzer Mixpac Ag Multicomponent cartridge with venting apparatus
JP2012530022A (en) * 2009-06-18 2012-11-29 ズルツァー ミックスパック アーゲー Composite cartridge with venting device
AU2010261996B2 (en) * 2009-06-18 2014-07-17 Sulzer Mixpac Ag Multi-component cartridge having a ventilation device
AU2010261996C1 (en) * 2009-06-18 2014-12-11 Sulzer Mixpac Ag Multi-component cartridge having a ventilation device
CN102482024A (en) * 2009-06-18 2012-05-30 苏舍米克斯帕克有限公司 Multicomponent cartridge with venting apparatus
WO2010145932A1 (en) * 2009-06-18 2010-12-23 Sulzer Mixpac Ag Multi-component cartridge having a ventilation device
EP2546166A1 (en) 2011-07-15 2013-01-16 Sulzer Mixpac AG Slack rope valve
US8925764B2 (en) 2011-07-15 2015-01-06 Sulzer Mixpac Ag Piston securing device
EP2868395A3 (en) * 2013-10-31 2015-07-29 Nordson Corporation Side by side cartridge assemblies and related methods
US9757763B2 (en) 2013-10-31 2017-09-12 Nordson Corporation Side by side cartridge assemblies and related methods

Similar Documents

Publication Publication Date Title
US5249709A (en) Cartridge system for dispensing predetermined ratios of semi-liquid materials
WO1991005731A1 (en) Cartridge system for dispensing predetermined ratios of semi-liquid materials
EP1205196B1 (en) A prefilled telescoping multiple chamber ampoule device
US5333760A (en) Dispensing and mixing apparatus
CA2081760C (en) A container for flowable substances
CA1122927A (en) Composite cartridge and device for metering extrusion of contents
EP0666823B1 (en) Multiple component metering and relative proportioning device with collapsible cartridge
US6536687B1 (en) Mixing cup adapting assembly
US6613021B2 (en) Ampoule for dispensing a substance or a mixture of a plurality of substances
US6705756B2 (en) Apparatus and method for mixing and dispensing components of a composition
US3188056A (en) Cartridge type plural component mixing and dispensing device
AU720194B2 (en) Dispensing cartridge
KR20020063493A (en) Cartridge for hair dye dispenser and corresponding method
EP1355827B1 (en) Container, sealing cap and method for sealing a nozzle tip of a curable liquid dispensing container
US7028869B2 (en) Device and method for packaging at least one product and method for mixing at least two products
US5330079A (en) Dispensing cartridge with reinforced retaining flange
CN109153033B (en) Side-by-side cartridge assembly for dispensing a first fluid and a second fluid
CA3155033A1 (en) Cartridge for a dispensing device
JP7465270B2 (en) Coaxial cartridge for multi-component materials and method for assembling the same - Patents.com
US5961005A (en) Receptacle for semi-solid substances and having a non-round follower piston
KR20010031166A (en) Unit dose dispense package
JP2002255208A (en) Vessel

Legal Events

Date Code Title Description
AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LU NL SE