US3912130A - Pressure release mechanism - Google Patents

Pressure release mechanism Download PDF

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Publication number
US3912130A
US3912130A US498012A US49801274A US3912130A US 3912130 A US3912130 A US 3912130A US 498012 A US498012 A US 498012A US 49801274 A US49801274 A US 49801274A US 3912130 A US3912130 A US 3912130A
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US
United States
Prior art keywords
container
seam
openings
end unit
venting
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
US498012A
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English (en)
Inventor
Peter G Pelton
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.)
Continental Can Co Inc
Original Assignee
Continental Can Co 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 Continental Can Co Inc filed Critical Continental Can Co Inc
Priority to US498012A priority Critical patent/US3912130A/en
Priority to ZA00748194A priority patent/ZA748194B/xx
Priority to CA220,155A priority patent/CA1040118A/en
Priority to FR7516099A priority patent/FR2282077A1/fr
Application granted granted Critical
Publication of US3912130A publication Critical patent/US3912130A/en
Assigned to SECURITY PACIFIC BUSINESS CREDIT INC., A DE. CORP. reassignment SECURITY PACIFIC BUSINESS CREDIT INC., A DE. CORP. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UNITED STATES CAN COMPANY, A DE. CORP.
Assigned to SECURITY PACIFIC NATIONAL BANK reassignment SECURITY PACIFIC NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UNITED STATES CAN COMPANY
Anticipated expiration legal-status Critical
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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/70—Pressure relief devices

Definitions

  • 222/396 nal pressure threatens to blow an end off the con- [51] Int. Cl. B651) 83/14 tainer.
  • the venting system comprises a plurality of [58] Field of Search 222/396, 397, 541; 220/67, vents formed in the body flange area which are buried 220/207; 137/525 in the double seam which joins the container body and end closure.
  • the end closure will UNITED STATES PATENTS buckle outwardly exposing the vents and thereby per- 3,786.967 1 1974 Giocomo et al.
  • the present invention relates generally to a metal or plastic aerosol container having a pressure relief system whereby the internal contents of the container may be vented therefrom when the internal pressure rises to a level sufficient to threaten blowing an end off the container. More particularly, this invention relates to a two or three piece metal or plastic aerosol container having a simple venting system to prevent the explosion of a filled container when the internal pressure rises considerably, as may occur during excessive heating of the container.
  • pressurized aerosol containers have been marketed to the general public. These container usually comprise a three-piece metal container having therein a product to be dispensed; together with a propellant which provides the internal pressure necessary to dispense the product through a valve mounted on the container top.
  • FIG. 1 is a fragmentary perspective view of an aerosol container constructed in accordance with this invention, illustrating a plurality of vents formed in portions of the end unit defining a part of the double seam structure.
  • FIG. 2 is a fragmentary perspective view of an aerosol container body prior to assembly, illustrating vents formed in the body flange.
  • FIG. 3 is an enlarged fragmentary sectional view taken generally along line 11 of FIG. 1, illustrating a vent formed in the body flange.
  • FIG. 4 is a fragmentary sectional view similar to FIG. 3 in which the end unit has buckled outward, illustrating the manner in which the vents are exposed by the rotation of the chuck wall, thereby allowing escape of the container contents.
  • a conventional two or three-piece aerosol container inside of which is housed a pressurized product (not shown).
  • the container 10 includes a typical dispensing button and/or nozzle 11 which is united to a conventional dispensing valve (not shown) such that upon depression of the nozzle 11 or angulating the same in non-parallel relationship to the container axis the product within the container 10 is dispensed through the valve and nozzle 11 to atmosphere.
  • Most aerosol containers 10 include an end unit 12 having a domed portion 13 which is crimped at 14 to a conventional valved cup 15.
  • Such conventional end units 12 further include a chuck wall radius 16 which joins the central domed portion 13 at a chuck wall 17.
  • the chuck wall 17 in turn merges with a seaming panel 18 through a seaming wall radius 21 which in turn in joined to a seaming wall 22 merging with an end hook radius 23 which in turn merges with an end hook 24.
  • the container body 25 of the aerosol container 10 includes a body wall 26 merging with a body hook radius 27 which in turn merges with a body hook 28.
  • the body hook 28 is sandwiched and crimped or clamped between the body wall 26, and the seaming wall 22.
  • a sealing compound 29 may be employed to insure the integrity of this crimped seal.
  • vents 30 in the body hook radius 27, said vents 30 being equally spaced about the periphery of said container body 25. Spacing of vents at 30 intervals is preferred although other spacing is also effective. Experience indicates that vents should not be placed within one-half inch of the body wall side seam and should not extend more than 0.09 inches inward from the flange periphery.
  • venting ports 30 are made in the body flange area 28a such that they will be buried in the double seam. Actually, they are covered by the seaming panel 18 of the end unit 12. During an overpressure condition, the end unit will buckle outward with the seaming panel 18 rotating about This highly reliable mechanical phenomenon then becomes the opening action essentially it is a popper valve. With a large enough hole, the compound 29 remaining is forced out of the way, allowing the high pressure gasses or product to exit between the body wall 26 and the end hook 24.
  • This developed double seam looseness is usually adequate for venting, yet is such that a heavy jetting and subsequent rocketing effect is prevented.
  • the discharge is actually a series of fine streams or sprays and rather well dispersed.
  • venting rate will actually be increased.
  • the pressure on the end unit 12 increases, there is a pronounced tendency of the double seam to unfold. As this tendency develops, the effect is to move the end hook 24 out away from the body 25 thus further opening the vents 30 as an outer poppet valve.
  • Safety venting means for a double seam structure of the type securing an end unit to a flanged container body comprising openings buried in said double seam, said openings being uncoverable upon the deflection of said end unit consequent to internal overpressurization of the container.
  • Safety venting means for a double seam structure of the type securing an end unit to a flanged container body comprising a plurality of openings in the body of the container, said openings being buried in said double seam and being uncoverable upon the deflection of said end unit consequent to internal overpressurization of the container.
  • said body comprises a radially outwardly directed flange and said openings disposed at the juncture of said flange and said body and being folded over into said seam.
  • Safety venting means for a double seam structure of the type securing an end unit to a flanged container body wherein said body has a flange at said seam and said venting means comprises at least one opening in said flange; said opening being buried in said double seam and being uncoverable upon the deflection of said end unit consequent to internal overpressurization of the container.
  • said end unit comprises a central domed portion and a peripheral relatively rigid portion including a seaming panel extending alongside said container body to said seam, said peripheral portion and said domed portion being deformable under greater stress loads than said seam wall whereby upon overpressurization said seam wall is caused to deform thereby opening said vent means.
  • a method of making a safety vent in a pressurized container comprising the steps of providing a container having an outwardly directed flange at one end, forming opening means in the flange, providing a distendable end closure, connecting the end closure to the body by double seaming the flange to said end closure an extent to bury the opening means in the seam in a location whereat upon said end closure becoming distended said seam will open and expose said opening means to evacuate the container.
  • a safety venting system for a double seam structure of the type securing an end unit to a flanged container body said container body including a body wall terminating at an outwardly directed body hook radius followed by a body hook, said end unit including a chuck wall merging with a securing panel which in turn merges with a seaming wall which in turn merges with an end hook, said body hook being sandwiched between said seaming wall and said end hook, said venting system comprising a plurality of openings in said body hook radius, said openings normally being covered by said securing panel, said openings being uncovered upon the deflection of said end unit consequent to internal overpressurization thereby controllably venting the interior of said container to the atmosphere.
  • a double seam structure of the type securing an end unit to a flanged container body said container body including a body wall terminating at an outwardly directed body hook radius followed by a body hook, said end unit including a chuck wall merging with a securing panel which in turn merges with a seaming wall which in turn merges with an end hook, said body hook being sandwiched between said seaming wall and said end hook, said venting system comprising a plurality of openings in said securing panel, said openings normally being covered by said body hook radius, said openings being uncovered upon the deflection of said end unit consequent to internal overpressurization thereby controllably venting the interior of said container to the atmosphere.

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  • 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)
US498012A 1974-08-16 1974-08-16 Pressure release mechanism Expired - Lifetime US3912130A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US498012A US3912130A (en) 1974-08-16 1974-08-16 Pressure release mechanism
ZA00748194A ZA748194B (en) 1974-08-16 1974-12-23 Pressure release mechanism
CA220,155A CA1040118A (en) 1974-08-16 1975-02-14 Pressure release mechanism
FR7516099A FR2282077A1 (fr) 1974-08-16 1975-05-23 Perfectionnements aux recipients pour aerosols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US498012A US3912130A (en) 1974-08-16 1974-08-16 Pressure release mechanism

Publications (1)

Publication Number Publication Date
US3912130A true US3912130A (en) 1975-10-14

Family

ID=23979256

Family Applications (1)

Application Number Title Priority Date Filing Date
US498012A Expired - Lifetime US3912130A (en) 1974-08-16 1974-08-16 Pressure release mechanism

Country Status (4)

Country Link
US (1) US3912130A (enExample)
CA (1) CA1040118A (enExample)
FR (1) FR2282077A1 (enExample)
ZA (1) ZA748194B (enExample)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5479789A (en) * 1977-12-06 1979-06-26 Nippon Light Metal Co Aluminiummmade container of high pressure resistance and method of making said container
US4730752A (en) * 1986-05-19 1988-03-15 S. C. Johnson & Son Inc. Anti-seating valve cup
WO1990006889A1 (en) * 1987-06-11 1990-06-28 Lmg Fibrenyle Limited Aerosol
US4993602A (en) * 1989-06-07 1991-02-19 Prd, Inc. Pressure relief device for a pressurized container
US5772083A (en) * 1995-09-26 1998-06-30 L'oreal Pressure relief system for pressurized container
EP0781712A4 (en) * 1995-08-10 1998-12-09 Osaka Shipbuilding LID ASSEMBLY FOR PRESSURE TANKS
DE19906576A1 (de) * 1999-02-17 2000-08-24 Wella Ag Aerosolbehälter
CN109689528A (zh) * 2016-09-14 2019-04-26 皇冠包装技术公司 紧凑型气溶胶容器
US20190135530A1 (en) * 2017-11-06 2019-05-09 The Procter & Gamble Company Aerosol dispenser with vented valve cup and valve cup therefor
US20190202625A1 (en) * 2018-01-03 2019-07-04 The Procter & Gamble Company Divergently vented aerosol dispenser outer container therefor and preform therefor
US10414568B2 (en) 2017-11-20 2019-09-17 The Procter & Gamble Company Aerosol dispenser with polygonal crimp ring outer container therefor and preform therefor
US10518961B2 (en) 2017-11-06 2019-12-31 The Procter & Gamble Company Aerosol dispenser with improved neck geometry outer container therefor and preform therefor
US10526133B2 (en) 2017-02-28 2020-01-07 The Procter & Gamble Company Aerosol dispenser having a safety valve
US10589921B2 (en) 2017-11-06 2020-03-17 The Procter & Gamble Company Aerosol dispenser with integral vent outer container therefor and preform therefor
US10836561B2 (en) * 2018-10-08 2020-11-17 The Procter & Gamble Company Aerosol dispenser
US10961043B1 (en) * 2020-03-05 2021-03-30 The Procter & Gamble Company Aerosol container with spaced sealing beads
US11814239B2 (en) 2011-05-16 2023-11-14 The Procter & Gamble Company Heating of products in an aerosol dispenser and aerosol dispenser containing such heated products

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2671600B1 (fr) * 1991-01-10 1993-04-23 Poclain Hydraulics Sa Carter de mecanisme muni de dispositifs particuliers de purge.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786967A (en) * 1970-09-25 1974-01-22 American Can Co Pressure relief system for an aerosol container

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786967A (en) * 1970-09-25 1974-01-22 American Can Co Pressure relief system for an aerosol container

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5479789A (en) * 1977-12-06 1979-06-26 Nippon Light Metal Co Aluminiummmade container of high pressure resistance and method of making said container
US4730752A (en) * 1986-05-19 1988-03-15 S. C. Johnson & Son Inc. Anti-seating valve cup
WO1990006889A1 (en) * 1987-06-11 1990-06-28 Lmg Fibrenyle Limited Aerosol
US5199615A (en) * 1987-06-11 1993-04-06 Lawson Mardon Group Uk Limited Dispenser with pressure release mechanism
US4993602A (en) * 1989-06-07 1991-02-19 Prd, Inc. Pressure relief device for a pressurized container
EP0781712A4 (en) * 1995-08-10 1998-12-09 Osaka Shipbuilding LID ASSEMBLY FOR PRESSURE TANKS
US5772083A (en) * 1995-09-26 1998-06-30 L'oreal Pressure relief system for pressurized container
DE19906576A1 (de) * 1999-02-17 2000-08-24 Wella Ag Aerosolbehälter
DE19906576B4 (de) * 1999-02-17 2007-08-02 Wella Ag Aerosolbehälter
US11814239B2 (en) 2011-05-16 2023-11-14 The Procter & Gamble Company Heating of products in an aerosol dispenser and aerosol dispenser containing such heated products
CN109689528A (zh) * 2016-09-14 2019-04-26 皇冠包装技术公司 紧凑型气溶胶容器
US10526133B2 (en) 2017-02-28 2020-01-07 The Procter & Gamble Company Aerosol dispenser having a safety valve
CN111295346A (zh) * 2017-11-06 2020-06-16 宝洁公司 具有通气阀座的气溶胶分配器及其阀座
US10518961B2 (en) 2017-11-06 2019-12-31 The Procter & Gamble Company Aerosol dispenser with improved neck geometry outer container therefor and preform therefor
US10589921B2 (en) 2017-11-06 2020-03-17 The Procter & Gamble Company Aerosol dispenser with integral vent outer container therefor and preform therefor
US10640284B2 (en) * 2017-11-06 2020-05-05 The Procter & Gamble Company Aerosol dispenser with vented valve cup and valve cup therefor
WO2019090281A1 (en) * 2017-11-06 2019-05-09 The Procter & Gamble Company Aerosol dispenser with vented valve cup and valve cup therefor
CN111295346B (zh) * 2017-11-06 2022-04-19 宝洁公司 具有通气阀座的气溶胶分配器及其阀座
US20190135530A1 (en) * 2017-11-06 2019-05-09 The Procter & Gamble Company Aerosol dispenser with vented valve cup and valve cup therefor
US10414568B2 (en) 2017-11-20 2019-09-17 The Procter & Gamble Company Aerosol dispenser with polygonal crimp ring outer container therefor and preform therefor
US20190202625A1 (en) * 2018-01-03 2019-07-04 The Procter & Gamble Company Divergently vented aerosol dispenser outer container therefor and preform therefor
US10894657B2 (en) * 2018-01-03 2021-01-19 The Procter & Gamble Company Divergently vented aerosol dispenser outer container therefor and preform therefor
US10836561B2 (en) * 2018-10-08 2020-11-17 The Procter & Gamble Company Aerosol dispenser
US10961043B1 (en) * 2020-03-05 2021-03-30 The Procter & Gamble Company Aerosol container with spaced sealing beads

Also Published As

Publication number Publication date
FR2282077A1 (fr) 1976-03-12
FR2282077B1 (enExample) 1981-10-09
ZA748194B (en) 1976-07-28
CA1040118A (en) 1978-10-10

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SECURITY PACIFIC BUSINESS CREDIT INC., A DE. CORP.

Free format text: SECURITY INTEREST;ASSIGNOR:UNITED STATES CAN COMPANY, A DE. CORP.;REEL/FRAME:004811/0856

Effective date: 19870925

AS Assignment

Owner name: SECURITY PACIFIC NATIONAL BANK, CALIFORNIA

Free format text: SECURITY INTEREST;ASSIGNOR:UNITED STATES CAN COMPANY;REEL/FRAME:005252/0579

Effective date: 19900123