US3784064A - Pressurized fluid dispensing devices - Google Patents

Pressurized fluid dispensing devices Download PDF

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Publication number
US3784064A
US3784064A US00264156A US3784064DA US3784064A US 3784064 A US3784064 A US 3784064A US 00264156 A US00264156 A US 00264156A US 3784064D A US3784064D A US 3784064DA US 3784064 A US3784064 A US 3784064A
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US
United States
Prior art keywords
valve
cap member
deformable
pressure
actuator
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 - Lifetime
Application number
US00264156A
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English (en)
Inventor
J Hardt
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.)
Alcan Holdings Switzerland AG
Original Assignee
Alusuisse Holdings AG
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 Alusuisse Holdings AG filed Critical Alusuisse Holdings AG
Application granted granted Critical
Publication of US3784064A publication Critical patent/US3784064A/en
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Expired - Lifetime 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
    • B65D83/38—Details of the container body
    • 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
    • B65D83/16—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 characterised by the actuating means
    • B65D83/20—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 characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
    • B65D83/205—Actuator caps, or peripheral actuator skirts, attachable to the aerosol container
    • 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
    • B65D83/70—Pressure relief devices

Definitions

  • An aerosol dispenser comprises a can closed by a cuplike cap member, a valve body supported on the cap member, and a manually operable push button adapted when depressed to dispense the aerosol.
  • Outward movement of the push button is limited by means such as a cover, and one of the can and cap member include a part which when subjected to an internal pressure above a safe value deforms and moves outwards together with the valve body, thereby depressing the push button to dispense the aerosol as for normal operation.
  • the invention relates to high-pressure fluid dispensing devices, for example aerosol cans.
  • Aerosol and similar cans adapted to contain a fluid under pressure may be submitted to relatively high inner pressures.
  • the inner pressure varies between about 2.5 and 6.6 kg/cm
  • This pressure rises rapidly with temperature and at 50C reaches values between about 6 and I2 kg/cm
  • Such an increase in pressure is accompanied by a danger of bursting or explosion of the can.
  • the pressure that such cans must be able to support without visible deformation should be equal to at least kg/cm, or 50 percent greater than the pressure in the can at a temperature of 50C, i.e. up to a maximum of 18 kglcm
  • the explosion pressure should be percent greater than this value.
  • the dispensing devices already include a member/for controlling the outlet of the pressurized fluid or aerosol, namely the valve.
  • the above mentioned difficulties may therefore be avoided by arranging for the valve to act as a safety vent when the internal pressure exceeds a given value.
  • U.S. Pat. No. 2,757,964 has already disclosed a high pressure fluid dispensing devicein which, in case the stored fluid exceeds a certain pressure, a valve is caused to open as a result of deformation of part of a cup-like cap member supporting the valve.
  • this device employs a special type of valve incorporating a deformable diaphragmand, when it acts as a safety vent, the valve opens in a special manner by distension and unseating of the diaphragm, whereas in normal operation the valve is opened by depressing a push button.
  • An aim of the invention is to provide a fluid dispensing device in which a valve can act as a safety member, and in which the valve operates in the same manner both when used as a safety member and in normal use, by depression of a push button relative to a valve body.
  • a fluid dispensing device comprising a can, a cup-like cap member closing the can, a fluid dispensing valve including a valve body supported on the cap member and a manually operable push button or actuator accessible from exteriorly of the can, which valve may be actuated to dispense a pressurized fluid in the can by a generally axial inward movement of the push button towards the valve body, one of the can and cup member including a part which when subjected to an inner pressure above a certain value deforms and moves together with the valve body generally axially outwards from a main portion of the can, and means for limiting axial outward movement of the push button relative to the main portion of the can for actuating the valve when said part and the valve body move outwards.
  • FIG. 1 is partial cross-section of a first embodiment
  • FIG. 2 is a partial perspective view of the first embodiment
  • FIG. 3 is a partial cross-section of a variation of the first embodiment
  • FIGS. 4, 5 and 6 are partial cross-sections of second, third and fourth embodiments.
  • FIG. 7 shows a variation of the fourth embodiment.
  • the aerosol can shown in FIGS. 1 and 2 has a cylindrical wall 1 extended at its upper end by a frustoconical part 2 which tapers inwardly to an annular groove 4 forming a neck and an outwardly directed bulge 3 forming a collar, itself extended by an inwardly protruding part 5 terminating with a rolled edge 6 forming an opening in the can.
  • a cup-like cap member 7 is fixed onto edge 6 by means of a bulge 8 engaging under edge 6, this cap member carries a valve body 9 at its centre.
  • the valve body 9 engages a tubular conduit 10 leading to a dispensing nozzle 11 integral with a push button 12.
  • a cover 13 of synthetic material having a cylindrical skirt 13 terminated by one or several inwardlydirected protuberances 15 is secured to the can by clipping of the protuberance(s) 15 into the groove 4.
  • Cover 13 has a central opening 16 for the button 12 which is accessible from the exterior and can be manually depressed, opening has side edges 17 and 18 located above the button or valve actuator 12 so as to limit upper axial movement thereof.
  • Part 5 of the can is approximately trunco-conical and has a certain elasticity so that it behaves substantially like a bent metal blade fixed at its two ends, i.e. it has two stable states on either side of a plane through the upper edge of bulge 3.
  • the part 5 is lifted and as soon as it moves past said plane it tips into its second stable state, indicated by 5.
  • the part 5 also lifts the cap member 7 and valve body 9. Since button 12 is prevented from moving upwardly by abutment against edges 17 and 18 of cap 13, the valve opens and the nozzle 11 delivers the pressurized fluid in the can, this operation being the same as that obtained during normal use of the can, i.e. by manually depressing button 12. Since state 5 is a stable state, the can remains in this configuration after venting of the pressurized fluid to remove the overpressure, so that it is possible to observe when there has been an overpressure.
  • the upper part of the can instead of being formed in one piece, could have a substantially dome-like piece fixed onto a cylindrical can body.
  • the dome would carry the cup-like cap member and would include the substantially trunco-conical deformable part 5, the cover 13 being secured onto the can by clipping over a rib joining the can body and the dome.
  • the cover 13 is secured to the rolled edge 6 at the joint of wall 1 and a cap member 19.
  • the deformable part is formed by an annular undulation 20 in the bottom of cap member 19 which allows the central part of cap member 19, together with valve body 9, to be raised in the case of an internal overpressure.
  • the can has a deformable part in the form of an annular accordion-like fold 21 on a cylindrical portion 22 of the can between a rolled edge 23 to which cap member 24 is fixed and a cylindrical wall 25 of the can.
  • An inwardly protruding edge 27 of a cover 28, analogous to cover 13 of FIG. 1, is adapted to clip into an annular groove 26 in wall 25.
  • Cover 28 has a central opening 29 to enable manual depression of push button 30 the upward axial movement of which is limited by the edges of opening 29. If the pressure inside the can exceeds a given value, the fold 21 deforms by expansion, lifting up the cap member 24 so that button 30, which comes to abut against the cover 28, is pressed towards the valve body 31.
  • the fold 21 is made so that the valve does not outlet until fold 21 has deformed by an amount exceeding the elastic limit of its material, in such a manner that a permanent deformation is provided.
  • the can does not have a cover fixed to the can body, but a rolled edge 32 of the cap member forms an abutment for control button 33 which, for this purpose, has an outwardly protruding flange 34 of slightly greater diameter than the inner diameter of the opening in the cap member in such a manner that the button 33 may be introduced by forcing it through the opening of the cap member, and may only be removed by exerting a pressure far greater than the normal pressure involved in depressing the button 33 to actuate the valve.
  • the cup-like cap member is fixed in a known manner to a rolled edge 35 of the can neck by means of an annular bulge 36 formed by an expansion process known as dudgeonning" or clinching, said bulge 36 forming a re-entrant groove in the cap member in which flange 34 is free to move downwardly.
  • Part 37 of the cap member is deformable by an inner pressure above a given value to cause raising of the bottom 38 of the cap member, as indicated at 38', the bottom 38 raising valve body 39 and pressing it towards push button 33, which is retained by its flange 34 against the edge 32 of the cap member, so as to open the valve which cutlets by the nozzle 40.
  • Part 38 behaves in the same manner as part of FIG. 1.
  • FIG. 6 shows a fourth embodiment in which a cap member 41 is secured by dudgeonning or clinching to a rolled edge 42 of the can.
  • the wall of the can includes a bent-over deformable part 48 adjacent to edge 42, this part being deformed in the case of an internal overpressure to lift the cap member to the position indicated by 41', lifting valve body 43 with it. Since control button 44 is retained by a cover 45 engaged in a peripheral groove 46 of the can, the valve is actuated by the button 44 and outlets by a conduit 47 passing through the button 44.
  • FIG. 7 shows a variation of the preceding embodiment in which cap member 41 is fixed onto a dome-like piece 49 secured to the edge of a cylindrical wall of the can at 50.
  • Dome 49 includes a curved section 490 which is able to deform and, as indicated in broken lines, axially lift up cap member 41 and valve body 43 in the case of an internal overpressure.
  • An aerosol dispenser comprising, a can, a valve on said can having a manually operable actuator accessible from exteriorly of said can to dispense a pressurized pressure fluid in the can, a cap member mounting said valve on said can, pressure-responsive deformable means on said can and deformable in a direction outwardly of the can and for moving said valve relative to said can and actuating it when a predetermined pressure in said can is exceeded, a can cover secured on said can having means engaged by said actuator when said deformable means moves said valve to actuate said valve to dispense said pressure fluid, and said deformable means comprising a part of said can intermediate a region where said cover is secured to said can and said cap member is secured to said can.
  • said deformable means is generally tubular and comprises at least one flexible peripheral fold.
  • An aerosol dispenser comprising, a can, a valve on said can having a manually depressable actuator accessible from exteriorly of said can to dispense a pressurized fluid in the can, a cap member mounting said valve on said can, said can having a neck and an opening in said neck, said cap member having a protruding circumferential bulge defining a re-entrant groove and holding said cap member in said neck fluidtightly, said cap member having a pressure-responsive, deformable part deformable in a direction outwardly of the can for moving said valve relative to said can and actuating it when a predetermined pressure in said can is exceeded, said actuator comprising a flange disposed in said reentrant groove limiting travel of said valve and actuating said depressable actuator when said deformable part moves said valve and said actuator flange engages a boundary of said re-entrant groove thereby dispensing said pressure fluid.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Closures For Containers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US00264156A 1971-06-22 1972-06-19 Pressurized fluid dispensing devices Expired - Lifetime US3784064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH909771A CH539816A (fr) 1971-06-22 1971-06-22 Récipient destiné à contenir un fluide sous pression

Publications (1)

Publication Number Publication Date
US3784064A true US3784064A (en) 1974-01-08

Family

ID=4348282

Family Applications (1)

Application Number Title Priority Date Filing Date
US00264156A Expired - Lifetime US3784064A (en) 1971-06-22 1972-06-19 Pressurized fluid dispensing devices

Country Status (9)

Country Link
US (1) US3784064A (fr)
JP (1) JPS5330165B1 (fr)
CA (1) CA996074A (fr)
CH (1) CH539816A (fr)
DE (1) DE2229961A1 (fr)
FI (1) FI55318C (fr)
FR (1) FR2143135B1 (fr)
GB (1) GB1360565A (fr)
NL (1) NL171251C (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4407432A (en) * 1980-12-22 1983-10-04 United States Surgical Corporation Pressure relief system for pressurized gas containers
US4722461A (en) * 1984-03-23 1988-02-02 Symmank William D Pressure relief liquid spray dispenser apparatus
FR2836455A1 (fr) * 2002-02-27 2003-08-29 Marie Noelle Marroncles Boitier empilable, machine de conditionnement de tels boitiers et conteneur traite par une telle machine
US20070034649A1 (en) * 2005-08-15 2007-02-15 Smith Scott E Ergonomic dispenser

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4775071A (en) * 1983-09-12 1988-10-04 Continental Can Company, Inc. Strength aerosol dome
JPS6397725U (fr) * 1986-12-16 1988-06-24

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659755A (en) * 1970-03-02 1972-05-02 Dart Ind Inc Automatic pressure relieving aerosol product

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659755A (en) * 1970-03-02 1972-05-02 Dart Ind Inc Automatic pressure relieving aerosol product

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4407432A (en) * 1980-12-22 1983-10-04 United States Surgical Corporation Pressure relief system for pressurized gas containers
US4722461A (en) * 1984-03-23 1988-02-02 Symmank William D Pressure relief liquid spray dispenser apparatus
FR2836455A1 (fr) * 2002-02-27 2003-08-29 Marie Noelle Marroncles Boitier empilable, machine de conditionnement de tels boitiers et conteneur traite par une telle machine
WO2003072445A1 (fr) * 2002-02-27 2003-09-04 Marroncles Marie-Noelle Boitier empilable et machine de conditionnement de tels boitiers
US20050150803A1 (en) * 2002-02-27 2005-07-14 Marroncles Marie-Noelle Stackable box and machine for packing such boxes
US20070034649A1 (en) * 2005-08-15 2007-02-15 Smith Scott E Ergonomic dispenser

Also Published As

Publication number Publication date
NL171251C (nl) 1983-03-01
CH539816A (fr) 1973-07-31
NL171251B (nl) 1982-10-01
GB1360565A (en) 1974-07-17
JPS5330165B1 (fr) 1978-08-25
CA996074A (en) 1976-08-31
DE2229961A1 (de) 1973-01-11
FR2143135B1 (fr) 1975-11-28
FI55318C (fi) 1979-07-10
FI55318B (fi) 1979-03-30
NL7208378A (fr) 1972-12-28
FR2143135A1 (fr) 1973-02-02

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