EP0151881B1 - Plastic dispensing container - Google Patents

Plastic dispensing container Download PDF

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Publication number
EP0151881B1
EP0151881B1 EP84308902A EP84308902A EP0151881B1 EP 0151881 B1 EP0151881 B1 EP 0151881B1 EP 84308902 A EP84308902 A EP 84308902A EP 84308902 A EP84308902 A EP 84308902A EP 0151881 B1 EP0151881 B1 EP 0151881B1
Authority
EP
European Patent Office
Prior art keywords
container
fluid
valve
lower portion
chamber
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.)
Expired
Application number
EP84308902A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0151881A2 (en
EP0151881A3 (en
Inventor
David J. Magid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CCL Industries Inc
Original Assignee
GROW VENTURES CORP
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 GROW VENTURES CORP filed Critical GROW VENTURES CORP
Priority to AT84308902T priority Critical patent/ATE40332T1/de
Publication of EP0151881A2 publication Critical patent/EP0151881A2/en
Publication of EP0151881A3 publication Critical patent/EP0151881A3/en
Application granted granted Critical
Publication of EP0151881B1 publication Critical patent/EP0151881B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/60—Contents and propellant separated
    • B65D83/62—Contents and propellant separated by membrane, bag, 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents

Definitions

  • the present invention relates to the field of containers for dispensing fluids under pressure. More particularly, the invention relates to a plastic container for dispensing fluids under pressure which is adapted to employ an expandable bag to generate the expulsion pressure within the container.
  • Containers for dispensing fluids under pressure have traditionally fit into two categories: (1) pressurized containers, such as the common aerosol container, in which constant pressure is exerted on the fluid to be expelled both during use and non-use; and (2) pump-type containers in which the user creates the expulsion pressure during use by manual actuation of a pump apparatus.
  • pressurized containers such as the common aerosol container, in which constant pressure is exerted on the fluid to be expelled both during use and non-use
  • pump-type containers in which the user creates the expulsion pressure during use by manual actuation of a pump apparatus.
  • Commercially suitable pump-type containers have been constructed from a variety of materials, including metals, glass, ceramics and plastics, among others. Since the expulsion pressure is only developed during times of actual use in these containers, complete gas impermeability has not been a design requirement.
  • Metal dispensing containers do possess disadvantages, however, not the least of which are high material costs and manufacturing complexity. Further, such mefal containers generally employ mounting cups in which the valve assembly is mounted and which must be crimped to the top portion of the container. Consequently, efforts have been made to produce pressurized dispensing containers made from other materials, especially plastics. To date, however, these efforts have not resulted in an entirely satisfactory alternative to the pressurized metal container.
  • U.S. Patent No. 3,140,802 discloses a pressurized dispensing container which includes a collapsible bag and a separate compartment into which an expandable fluid, such as "Freon" is placed.
  • the bag is seated securely in a container which may be constructed of plastic, and attached to the side wall of the container by an adhesive or by heat sealings, (Col. 3, lines 4-7).
  • the lower surface of the bag is adjacent to a "cradle" which forms one wall of the Freon- containing compartment. Holes are formed in the cradle so that the expanding gas can exert pressure on the exterior surface of the bag and cause its contents to be expelled when the valve of the container is actuated.
  • This arrangement represents an attempt to separate the fluid contents to be expelled from the container from the pressure-producing gas propellant and thus reduce the number of sealing locations where the gas can escape.
  • U.S. Patent Nos. 3,698,595 and 3,791,557 are representative of an alternative approach to the solution of the gas permeability problems which have heretofore been endemic to pressurized plastic dispensing containers. Both of these patents disclose pressurized dispensing containers in which the pressure is developed on the fluid to be expelled by the contraction of an elastic bladder in which the fluid is contained.
  • the former patent states that one of the advantages of a bladder-type container such as the one disclosed therein is that the container assembly can be made of plastic, (Col. 1, lines 34-38). Bladder-type containers thus solve the gas permeability problem by eliminating gas as a propellant altogether. Quite obviously, the structural integrity and contrasting characteristics of the bladder material are limiting factors on the suitability of this type of container for commercial use.
  • British Patent Publication No. 2,101,225 discloses a plastic dispensing container which, like the common metal aerosol container, uses a gas propellant mixed in with the fluid to be expelled to create the requisite expulsion pressure.
  • a gas propellant mixed in with the fluid to be expelled to create the requisite expulsion pressure.
  • a metal valve cup is used in the preferred embodiment and sealing is accomplished by crimping the metal over the plastic rim or "bead" of the vessel portion of the container.
  • US-A-4376500 discloses an aerosol-type liquid dispensing container in which internal pressure for expelling the contents of the container upon actuation of the valve is provided by an expandable bag located within the chamber in which the liquid to be expelled is retained.
  • the bag contains compositions which when reacted together generate a gas, thereby inflating the bag and causing the bag to exert pressure upon the contents to be expelled from the container.
  • a tube may be included within the chamber to provide a clear passage for expulsion of the last remaining fluid within the container as the bag reaches its fully expanded condition.
  • EP-A-0091306 discloses a similar dispensing system and in which the container has an open upper end closed and sealed by a cover screwed on to the container and having a central valve controlled outlet. No provision is made for protecting the valve from being enveloped by the expandable bag and thereby blocked.
  • This invention provides a container for dispensing fluid contained therein which comprises: a lower portion formed of a pressure-resistant fluid-impermeable synthetic plastic material, said lower portion having a bottom closed end, and side walls extending upwardly from said closed end and terminating to form a substantially fully open end; expandable bag means adapted to be inserted into the open end of said lower portion of said container without any substantial crushing thereof; an upper portion formed of a pressure-resistant fluid-impermeable synthetic plastic material, said upper portion having a top end, side walls extending downwardly from said top end and terminating to form a substantially fully open end sized for mating with said open end of said lower portion; sealing means for joining said lower portion and said upper portion to form a single fluid-impermeable chamber; dispensing valve means for releasing fluid from said chamber; receptacle means molded in said top end of said upper portion adapted to receive said dispensing valve means; and closure means for retaining said valve means in said receptacle means and including openings therein to permit the fluid to
  • the invention provides an improved plastic pressurized dispensing container in which the need for the cumbersome bag and bladder arrangements and the relatively complex and costly sealing arrangements shown in the prior art is eliminated.
  • the present container is made entirely of plastic aside from the valve components and possesses a minimal number of component parts, thus simplifying manufacture.
  • the reduced cost and simplicity of the container of the invention makes it much more suitable for large-scale commercial use than both metal and plastic containers in the prior art.
  • the plastic container of the invention includes two essential component parts, an upper portion which house the valve mechanism necessary for dispensing of the fluid product, and a lower portion which when sealed to the top means forms the chamber in which the fluid to be dispensed is retained.
  • the dispensing valve is housed in the upper portion of the container in a receptacle formed preferably by injection molding, thus eliminating the need to seat the valve assembly within a mounting cup and crimp the cup to the top of the container in manufacture.
  • each of the structural components of the container are shaped such that they will nest together in cup fashion.
  • a cup-like bottom means from a nested stack is fed onto the assembly line and conveyed to a station where the fluid to be dispensed is poured into it and then conveyed to a further station where the expandable bag is dropped into the open mouth of that bottom means.
  • the lower portion of the container into which the expandable bag is inserted is formed with an unobstructed or generally full opening. In this manner, the expandable bag may be inserted without any sideways crushing necessary to facilitate insertion into conventional aerosol containers having narrow openings.
  • the top means of the container is first seated onto the open mouth of the bottom means and then welded to the bottom means by a suitable plastic welding process, such as ultrasonic welding, spin welding or friction welding. Once the top means is sealed to the bottom means, assembly is complete.
  • a suitable plastic welding process such as ultrasonic welding, spin welding or friction welding.
  • the container which may further include rib means integrally formed along the interior side wall of said lower portion for preventing said fluid from becoming trapped within said chamber by said expandable bag means as said bag means expands.
  • said lower portion may have a rounded closed end and said container may further include base cup means into which said rounded closed end of said lower portion is disposed, for supporting said lower portion in an upright position.
  • Said receptacle means may comprise an upwardly extending generally cylindrical housing adapted to conform to the body of said valve means, said valve means may have an upwardly extending valve stem, said cylindrical housing may have an aperture in the upper end thereof to facilitate passing of the valve stem therethrough.
  • the latter construction may further include resilient means disposed between said closure means and said valve means for urging said valve means into a sealing relation with an upper end of said cylindrical housing.
  • said depending guard means extending downwardly into said chamber from said receptacle means may be molded in said top end of said upper portion and forming a lower edge, and said cap means may be secured to said lower edge of said guard means.
  • Figs. 1-4 show various views of container 10 in its fully-assembled condition while Fig. 6 shows an exploded view of the structural components of container 10.
  • Container 10 includes two basic structural components, top means 12 and bottom means 14.
  • Top means 12 generally takes the form of a tapered cap, having a wide open lower portion 16 and a narrower upper portion 18.
  • Lower portion 16 tapers outwardly to form the widest dimension of the top means 12, and terminates in a depending flange 20 whose purpose will be hereinafter described.
  • Upper portion 18 of top means 12 includes a wide transverse groove, or recess, 22 having a substantially flat bottom wall 24.
  • Bottom wall 24 includes a cylindrical housing 26 in the center thereof having an aperture 28 therein.
  • Cylindrical housing 26 which forms a receptacle for the valve assembly, is integrally molded with the bottom wall 24 of the top 12 and extends upward therefrom.
  • the interior of cylindrical housing 26 is sized to receive a conventional valve assembly which may be either of the male or female type.
  • Extending downward from an integrally molded with bottom wall 24 is a cylindrical guard 27 encircling the valve assembly and which includes, as described in greater detail below, a holding means for retaining the valve assembly within the receptacle 26.
  • valve stem 32 Mounted within housing 26 is a spring-loaded aerosol spray valve assembly 30, including valve stem 32, which as mentioned may be either male or female. Any suitable spray head (not shown) may be mounted on valve stem 32 to impart flow characteristics which are appropriate for the fluid being dispensed and the end use to which the fluid is being put.
  • the width dimension of recess 22 is chosen so that the finger of any user of the container may easily gain access to the valve means 30. Recess 22 provides protection for valve means 30 when the container is not in actual use, and also insures that the fluid being expelled from the containerwill nottravel in a direction which the user does not intend.
  • valve assembly 30 is retained within the cylindrical housing 26 and guard 27 with the stem 32 aligned to extend through aperture 28 and the seal 29 which abuts againstthe inside of the top wall of receptacle 26.
  • Valve stem 32 includes a hole 32a, so thatwhen the valve stem is depressed by a user, the hole will be disposed belowseal 29, allowing fluid to enter the holeto be dispensed.
  • Valve assembly 30 is urged into an abutting sealing relation with receptacle 26 by means of a compression spring 31 which engages the bottom of valve assembly body30b.
  • Cap 33 Locking of the valve assembly 30 within the receptacle 26 is accomplished by means of a cap 33 which is fastened to the guard or skirt 27 and which holds compression spring 31 against valve assembly 30.
  • Cap 33 includes a cylindrical ridge 33a which serves to center spring 31.
  • apertures 62 are provided in guard 27.
  • Cap 33 may be bonded to the depending skirt 27 by means of spin or sonic welding as will be described below.
  • An alternative mounting of cap 33 to skirt 27 is depicted in Fig. 9.
  • Ears 33c are positioned about the periphery of cap 33 and include grooves 33d which engage and mate with the rib 27a extending about the periphery of skirt 27.
  • An alternative frictional mounting of the cap is depicted in Fig. 9a.
  • a plurality offrictional gripping members 33e are positioned on the upwardly extending wall 33f of cap 33. Gripping members 33e, which are preferably metal, engage and bite into the outer surface of skirt 27 and thus hold spring 31 against valve assembly 30.
  • Cap 33 and wall 33f thereof may further be provided with holes 33g to allow for material flow from the container into the valve assembly.
  • guard 27 could be formed integrally with cap 33 and suitable mounting means could be provided on the top means 12, such as those already discussed or variations thereof.
  • valve assembly Utilization of the valve assembly and its mounting within the integrally molded receptacle 26 eliminates the need for the valve mounting cups used in the prior art. Further, the assembly described herein eliminates the step of crimping the mounting cup to the container which has heretofore created numerous problems associated with leakage particularly when the container has been dropped.
  • Bottom means 14 comprises a generally cup- shaped vessel which is tapered from a relatively wide open end 38 to a narrower closed end 40.
  • closed end 40 is rounded to seat within a base cup means 42 which will be hereinafter described.
  • closed end 40 may in the alternative have a flat bottom wall or other configuration that will enable bottom means 14 to stand upright without support.
  • bottom means 14 includes near its open end 38 a laterally extending shoulder 44 which surrounds the outer periphery of bottom means 14.
  • shoulder 44 is located at a distance below the rim 46 of the open end of bottom means 14 which is approximately equal to the distance which flange 20 of top means 12 extends below rim 48 of top means 12.
  • Located at the edge of rim 46 of bottom means 14 is a bead 50.
  • bead 50 is partially melted to form a weld between rim 48 of top means 12 and rim 46 of bottom means 14.
  • the width dimension of shoulder 44 is chosen to match the width of flange 20 so that a smooth junction is formed when the top and bottom means are welded together.
  • Effective joining of the top and bottom portions of container 10 may be obtained by spin welding in which the top portion 12 is rotated while bearing against the bottom portion 14. In this manner, an effective seal may be achieved quickly having a tensile strength virtually equal to that of the plastic material. Alternatively, sonic or ultrasonic welding may be employed. In any case, excessive flashing should be trimmed. In a container of the type described utilizing an expandable bag, the sealing of the component parts should be sufficient to withstand an internal fluid pressure of at least 172.3x10- 3 N/mm 2 (25 pounds per square inch). Such systems have been found to exert pressures in the range of 172.3x10- 3 to 1551.4x10- 3 N/mm 2 (25 to 90 pounds per square inch).
  • top means 12 to bottom means 14 thus forms within the container a fluid impermeable chamber 53.
  • Fluid 54 is shown located within chamber 53 in Fig. 2, as well as an expandable bag 56 such as that described in detail in the aforementioned U.S. Patent No. 4,376,500.
  • the expandable bag of the above- mentioned patent includes a first group of compartments which are releasably sealed to the internal side wall of the bag and which contain a substance such as citric acid in powdered form or in aqueous solution.
  • a substance such as citric acid in powdered form or in aqueous solution.
  • a second substance such as sodium bicarbonate, which when reacted in the solution with the citric acid component will generate carbon dioxide gas.
  • the solvent medium water for example, for the aforesaid reaction is contained in a separate rupturable compartment inside the bag.
  • a time release capsule of the citric acid component is located in the bag adjacent to the second component, such that it can be dissolved in the solvent medium when desired to initially activate the gas generating system, i.e., at the point of final assembly of the bag into the dispensing container 10.
  • the first group of compartments is successively unsealed from the side wall thereof, thereby discharging their contents into the solvent containing the second component and maintaining generation of the gas until the bag reaches its fully expanded condition.
  • valve mechanism 30 Succeeding actuations of the valve mechanism 30 will permit fluid 54 to be expelled from chamber 53 under the pressure exerted by the expanding bag 56 until bag 56 displaces the entire volume of chamber 53 occupied by ftuid 54 and all of the fluid has been expelled.
  • the preferred embodiment of container 10 includes along the interior side wall of bottom portion 14 a longitudinal rib 58. Rib 58 will prevent bag 56 from expanding completely to the side walls of bottom portion 14, thereby creating an escape passage for any fluid in the lower portion of chamber 53.
  • the function of rib 58 may also be served by a tube placed within the bottom portion 14 of the container 10 during manufacture. Such a tube is shown and described in the above-mentioned U.S. Patent No. 4,376,500.
  • cylindrical guard 27 which is integrally formed with top means 12 further serves to prevent the expanding bag 56 from obstructing the valve assembly 30.
  • Cylindrical guard 27 includes a plurality of grooves 62 therein to provide passage for fluid 54 to reach the valve assembly 30.
  • the bottom means 14 of the preferred embodiment of container 10 has a rounded lower portion 40 which seats within a base cup means 42 as shown in Fig. 2.
  • Base cup means 42 includes a bevelled interior wall 64 which is formed to snugly fit against the tapered side walls of bottom means 14.
  • the lower portion of base cup means 42 forms an annular inwardJy sloping seat 66 which supports the rounded bottom portion 40 of bottom means 14.
  • Bevelled wall 64 and annular seat 66 cooperate to position bottom cup means 14 in an upright position.
  • All of the structural components of container 10 hereinbefore described are formed of any one of a number of synthetic plastics which are both fluid impermeable and strong enough to withstand the pressure developed within the container.
  • plastics from which the container of the invention may be formed are polyethylene terephthalate, polyvinyl chloride and the polyacronitriles.
  • the structural components of the container may be made by any one of a number of processes for forming plastic parts, such as blow molding, extrusion or injection molding.
  • top means 12, bottom means 14 and base cup means 42 of the preferred embodiment of container 10 are each shaped so as to be stored in nested stacks.
  • the nestable shapes of top means 12, bottom means 14 and base cup means 42 permit storage of those components prior to manufacture in relatively small areas, thus efficiently utilizing the space available for storage and lowering warehousing costs.
  • the nestable shapes also promote easier feeding of the components on the assembly line during manufacture.
  • Bottom cup means 42 is first fed from a nested stack onto a moving belt or other conveying device, and then delivered to Station (1).
  • Station (1) a bottom means 14 is fed from a nested stack and seated in base cup means 42.
  • the resulting subassembly is then delivered to Station (2), where bottom means 14 is filled with fluid which is to be dispensed.
  • Station (3) After being filled with fluid, the subassembly is conveyed to Station (3), where an expandable bag 56 is inserted from a magazine into bottom means 14. Since the bottom means 14 has a wide opening extending for its entire inner diameter, insertion of the expandable bag 56 is accomplished without requiring crushing.
  • top means 12 is fed from a magazine containing a nested stack of that component onto the open end of bottom means 14.
  • top means 12 is welded to bottom means 14 by one of a number of suitable plastic welding techniques, such as ultrasonic welding, friction welding or spin welding.
  • suitable plastic welding techniques such as ultrasonic welding, friction welding or spin welding.
  • the completed container 10 is then conveyed to a packing station and then prepared for shipment.
  • bottom means 14 may have a flat bottom wall enabling it to stand upright without base cup means 42, thereby eliminating base cup means 42 from the assembly sequence.
  • bottom means 14 or top means 12 may have non-nestable shapes which would require them to be placed or fed onto the assembly line by a different method than that shown in Fig. 13.
  • top means 12 of the container 10 herein may readily be adapted for use in association with a refill pouch.
  • the top means 92 of container 90 is generally of the same construction as that previously described except that a different manner of sealing the two basic components of the container together is provided.
  • the lower portion of top means 92 of container 90 includes an extended depending flange 96 which is provided with screw threads on its interior wall. Mating screw threads are provided on the exterior surface of the upper portion of bottom means 94.
  • An o-ring seal may be utilized in association with the threads, to secure an appropriate seal.
  • the bottom means 94 again includes the expandable bag. 95, depicted in Fig. 14 in a partially expanded state, including pressure generating means 98 and rupturable compartment 100 for initiating gas generation.
  • a tube 101 may be provided so that material to be dispensed at the bottom of bottom means 94 is not “pinched off” by the expandable bag 95.
  • the material to be dispensed is housed within an outer pouch 97, as is also the expandable bag 95.
  • Outer pouch 97 preferably conforms to the shape of bottom means 94 and top means 92, as shown.
  • the top of outer pouch 97 is open to allow fluid material to be dispensed to be in communication with the valve assembly. Such an opening may be made by removal of a tear strip or by an appropriate puncturing of the outer pouch 97. Once all of the material has been dispensed, container 90 may be opened by removal of the top means 92 and a new refill inserted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Packages (AREA)
  • Tubes (AREA)
  • Nozzles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
EP84308902A 1984-02-09 1984-12-19 Plastic dispensing container Expired EP0151881B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84308902T ATE40332T1 (de) 1984-02-09 1984-12-19 Kunststoff-abgabebehaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57853684A 1984-02-09 1984-02-09
US578536 2000-05-24

Publications (3)

Publication Number Publication Date
EP0151881A2 EP0151881A2 (en) 1985-08-21
EP0151881A3 EP0151881A3 (en) 1986-10-29
EP0151881B1 true EP0151881B1 (en) 1989-01-25

Family

ID=24313290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84308902A Expired EP0151881B1 (en) 1984-02-09 1984-12-19 Plastic dispensing container

Country Status (12)

Country Link
EP (1) EP0151881B1 (pt)
JP (1) JPS60216859A (pt)
KR (1) KR850005815A (pt)
AT (1) ATE40332T1 (pt)
AU (1) AU575103B2 (pt)
BR (1) BR8500093A (pt)
CA (1) CA1277293C (pt)
DE (1) DE3476372D1 (pt)
ES (3) ES8700624A1 (pt)
IE (1) IE57047B1 (pt)
IL (1) IL73814A (pt)
MX (1) MX161959A (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005279A1 (en) * 1986-03-03 1987-09-11 Precision Valve Australia Pty. Limited Plastic valve mounting cup

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018358B (de) * 1956-03-19 1957-10-24 Roto Werke A G Sich selbst entleerender Druckbehaelter fuer Wirkstoffe aller Art
US3140802A (en) * 1962-06-25 1964-07-14 John W Everett Pressure container with rigid band
US3698595A (en) * 1969-12-22 1972-10-17 Norman Gortz Pressurized dispenser
US3992003A (en) * 1975-10-24 1976-11-16 Visceglia Marco P Aerosol container having sealed propellant means
US4376500A (en) * 1980-07-25 1983-03-15 Enviro-Spray Systems, Inc. Expandable bag
US4513884A (en) * 1982-04-05 1985-04-30 Enviro-Spray Systems, Inc. Dispensing system and a refill pouch

Also Published As

Publication number Publication date
ES296695U (es) 1988-01-01
JPS60216859A (ja) 1985-10-30
IE57047B1 (en) 1992-04-08
EP0151881A2 (en) 1985-08-21
IE850314L (en) 1985-08-09
MX161959A (es) 1991-03-08
IL73814A (en) 1988-08-31
ES296696U (es) 1988-01-01
AU3706584A (en) 1985-08-15
EP0151881A3 (en) 1986-10-29
ES296696Y (es) 1988-07-16
ES296695Y (es) 1988-07-16
KR850005815A (ko) 1985-09-26
ATE40332T1 (de) 1989-02-15
IL73814A0 (en) 1985-03-31
AU575103B2 (en) 1988-07-21
ES540244A0 (es) 1986-10-16
ES8700624A1 (es) 1986-10-16
DE3476372D1 (en) 1989-03-02
BR8500093A (pt) 1985-09-24
CA1277293C (en) 1990-12-04
JPH0331103B2 (pt) 1991-05-02

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