EP0328582A4 - Improved aerosol container closure - Google Patents
Improved aerosol container closureInfo
- Publication number
- EP0328582A4 EP0328582A4 EP19880906571 EP88906571A EP0328582A4 EP 0328582 A4 EP0328582 A4 EP 0328582A4 EP 19880906571 EP19880906571 EP 19880906571 EP 88906571 A EP88906571 A EP 88906571A EP 0328582 A4 EP0328582 A4 EP 0328582A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- mounting cup
- indent
- channel
- gasket
- container
- 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.)
- Withdrawn
Links
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
- B65D83/38—Details of the container body
Definitions
- Aerosol dispensing containers have found widespread use in the packaging of fluid materials including a variety of both liquid and powdered particulate products. Such containers are provided with a valve-controlled discharge orifice and operate by the action of a volatile propellant which is confined within the container together with the product to be dispensed. Because the propellant has an appreciable vapor pressure at room temperature, the product in the closed container is maintained under super-atmospheric pressure.
- a typical aerosol unit comprises a hollow cylindrical container which is tightly closed at one end and is provided with an opening at its opposite end for receiving a dispensing valve assembly.
- a closure commonly referred to as a mounting cup, serves as the closure for the container and as a support for the valve assembly.
- the mounting cup comprises a pedestal portion for mounting the valve unit, a panel portion extending from the pedestal portion, a skirt portion depending from the periphery of the panel, and an annular channel portion extending outwardly from the skirt.
- mounting cup seals have been formed by disposing a so-called "cut 11 gasket in the channel.
- This type of gasket has the disadvantage of not being stationary relative to the mounting cup during propellant filling or other valve unit assembly operations with the undesirable consequence that when the mounting cup and container are clinched to effect the seal, the gasket is often disposed at an angled position, and thus, the seal may be less effective.
- Another commercial method for disposing the gasket onto the mounting cup consists in forming the gaskets in situ from liquid gasket-forming compositions comprising an elastomer dispersed or dissolved in volatile liquid vehicles, so called “flowed-in" gasket.
- the liquid composition is deposited in the desired configuration in the channel of the cup while the cup is rotated beneath a metering nozzle through which the gasket composition flows. The deposit is then converted into a dry solid sealing mass by expelling the liquid vehicle at elevated temperatures.
- 4,546,525 and 4,547,948 comprises passing a tubular sleeve of gasket material onto a compressible mandrel; initially positioning and aligning the skirt of the mounting cup and the contiguous end of the mandrel such that the sleeve of gasket material may pass onto the skirt, said mandrel having fixed and moveable portions with respect to each other and to their movement toward and away from the mounting cup; urging the moveable portion of the gasket material bearing mandrel toward the mounting cup such that the gasket material passes onto the skirt of the cup; causing the moveable portion of the mandrel to retract to its initial position, cutting the sleeve at a point between the mounting cup and the mandrel to leave a band of gasket material; and subsequently, advancing the mounting cup to a station whereat the band of the gasket material is urged further onto the skirt of the mounting cup, whereby, the band of gasket material does not extend beyond the skirt of the mounting cups.
- the gasket is advanced to the ultimately desired position on the mounting cup.
- a recent commercial system involves laminating a plastic material to a sheet of the metal and subsequently forming the laminated plastic sheet into a mounting cup.
- the thickness of the plastic laminate is usually on the order of .008- 010", thinner than the sleeve gasket and substantially thinner than the cut or flowed-in gasket.
- This modification of the mounting cup comprises a channel portion for sealing with the bead of the container.
- the channel portion having an inner region contour being substantially different in shape from the inner surface contour of the annular bead of the container.
- the difference in the shape of the inner region contour of the channel portion from the shape of the inner surface contour of the annular bead allows only a portion of the inner region contour of the peripheral rim to contact the inner surface contour of the annular bead when the mounting cup is disposed on the container.
- the shape of the inner region contour of the peripheral rim is deformed when the mounting cup is crimped to the annular bead of the container.
- the deformation of the inner region contour reforms the shape of the inner region contour to be substantially the same shape as the inner surface contour of the annular bead to provide a sealing engagement between the mounting cup and the container.”
- this invention comprises a gasketed mounting cup having a rigid, substantially non-deformable, annular indent or depression in the outer wall of the channel portion of the mounting cup.
- the annular indent is offset from the midpoint (deepest point) of the channel, and more preferably the indent is offset on the channel portion nearer to the skirt portion of the mounting cup.
- Figure 1 is an elevated sectional view of a mounting cup of this invention having a laminated gasket on the surface thereof.
- Figure 2 is an enlarged, partial elevated sectional view of that portion of the mounting cup within the circular dotted line of Figure 1.
- Figure 3 is an enlarged partial elevated sectional view of the mounting cup of this invention shown clinched onto a partial section of the bead of a container.
- the mounting cup generally designated as 10, has a pedestal portion 12 for receiving and retaining a valve unit (not shown) , a panel portion 14, a skirt portion 16, and a channel portion 18 extending from the skirt portion 16.
- a gasket material 20 Laminated to the under surface of the mounting cup 10 is a gasket material 20.
- an annular indent 24 Disposed interiorly of the midpoint of 22 of the channel portion 18 is an annular indent 24, said indent 24 forming a corresponding protuberance 26 in the gasket material 20.
- the mounting cup generally designated as 10, is shown clinched about the bead 28 of a container (not shown) by outwardly deforming the skirt portion 16 of the mounting cup 10, as shown at 30, said clinching operation being conducted utilizing conventional methods and apparatus familiar to the aerosol industry.
- Clinching of the mounting cup and the bead of the container shown effects a compression of the gasket material and thus a sealing force at three zones, namely, the usual seal immediately contiguous to the clinch zone, designated as Zone A in Figure 3; and on each side of the indent/protuberance, designated as Zones B&C.
- Zones B&C shown as dotted areas in Figure 3, are generated by the movement of the gasket material during the clinching operation; the nature of the gasket material being such that it retains the volume occupied prior to clinching through movement of the gasket into the space contiguous to the indent/protuberance zone.
- the indent/protuberance of the gasketed mounting cup of the invention essentially retains the indent/protuberance configuration following the clinching of the mounting cup and container bead.
- Metal found suitable for use in forming the mounting cup of the subject invention is that currently used in the aerosol industry, namely, tinplate and aluminum, wherein metal thicknesses of .010" & .016", respectively are commonly employed.
- Suitable gasket materials are those currently utilized commercially in the cut, flowed-in, sleeve and laminated gasket systems.
- the annular indent/protuberance of the mounting cup may be formed by conventional tooling.
- the dimensions of the annular indent in the mounting cup necessary to retaining the integrity of the indent subsequent to the clinching of the mounting cup and container bead, are the depth and width of the indent. It has been found that an annular indent having a depth of .007" - .010" and a width having a radius of curvature of .020" is satisfactory when utilizing tinplate and aluminum as the metal of the mounting cup and when using a "hold down" force of 100 lbs./sq.in. for tinplate and 125 Ibs./sq.in. for aluminum.
- the narrower the width of the indent should be to retain the integrity of the indent during the clinching of the cup to the container bead.
- the depth of the indent should not exceed the thickness of the gasket material and preferably should be less than the thickness of the gasket material.
- the indent in the mounting cup be disposed interiorly of the midpoint of the wall of the channel portion. Disposing the indent at the midpoint of the channel, may result in the deformation of the indent as the clinching head is brought to bear against the mounting cup. Disposing the indent interiorly, that is, nearer to the skirt portion of the mounting cup, as shown in the drawings, is preferable to exteriorly disposing the indent. It has been found that disposing the indent interiorly at 45° from the midpoint of the wall of the channel provides a satisfactory seal.
- the cross-sectional shape of the indent is preferably curvilinear, however, other shapes may be employed.
- a plurality of concentric annular indents may be employed, disposing an indent at the clinch point and the other 30° apart on the radius of curvature of the channel portion.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7614787A | 1987-07-21 | 1987-07-21 | |
US76147 | 1987-07-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0328582A1 EP0328582A1 (en) | 1989-08-23 |
EP0328582A4 true EP0328582A4 (en) | 1990-10-10 |
Family
ID=22130207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19880906571 Withdrawn EP0328582A4 (en) | 1987-07-21 | 1988-07-21 | Improved aerosol container closure |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP0328582A4 (en) |
JP (1) | JPH02500825A (en) |
KR (1) | KR890701450A (en) |
AR (1) | AR240159A1 (en) |
AU (1) | AU2134088A (en) |
BR (1) | BR8807138A (en) |
DK (1) | DK138389A (en) |
ES (1) | ES2011667A6 (en) |
FI (1) | FI891326A0 (en) |
GB (1) | GB2208308A (en) |
NZ (1) | NZ225486A (en) |
PT (1) | PT88065A (en) |
WO (1) | WO1989000538A1 (en) |
ZA (1) | ZA885239B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0561777B1 (en) * | 1989-06-30 | 1996-03-27 | Precision Valve Corporation | Method of forming improved gasket configuration for an aerosol container closure |
US5820841A (en) * | 1996-09-19 | 1998-10-13 | Ethicon, Inc. | Hydrogen peroxide complexes of inorganic salts and synthesis thereof |
FR2993249B1 (en) * | 2012-07-11 | 2015-03-20 | Aptar France Sas | JOINT SUPPORT ELEMENT AND FLUID PRODUCT DISPENSING DEVICE HAVING SUCH A SUPPORT ELEMENT. |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3512685A (en) * | 1968-04-25 | 1970-05-19 | Seaquist Valve Co | Aerosol container |
DE2021643A1 (en) * | 1970-05-02 | 1972-05-18 | Thomas Gmbh | Valve plate for spray cans |
DE2042931A1 (en) * | 1970-08-29 | 1972-03-02 | Schickedanz, Gerhard, 6070 Langen | Valve disc for spray cans |
US4150522A (en) * | 1977-03-07 | 1979-04-24 | Nicholas A. Mardesich | Method for undercap filling of a barrier pack aerosol container |
GB2145775B (en) * | 1983-08-31 | 1987-08-05 | Metal Box Plc | Pressurisable containers |
ES295932Y (en) * | 1984-07-02 | 1988-01-01 | Aeroclo Corporation | CLOSURE FOR AEROSOL CONTAINER |
US4792067B1 (en) * | 1985-05-13 | 1999-02-16 | Aptargroup Inc | Mounting cup |
-
1988
- 1988-07-20 NZ NZ225486A patent/NZ225486A/en unknown
- 1988-07-20 GB GB8817300A patent/GB2208308A/en not_active Withdrawn
- 1988-07-20 ZA ZA885239A patent/ZA885239B/en unknown
- 1988-07-20 ES ES8802295A patent/ES2011667A6/en not_active Expired - Fee Related
- 1988-07-20 AR AR311461A patent/AR240159A1/en active
- 1988-07-21 WO PCT/US1988/002489 patent/WO1989000538A1/en not_active Application Discontinuation
- 1988-07-21 JP JP63506453A patent/JPH02500825A/en active Pending
- 1988-07-21 KR KR1019890700499A patent/KR890701450A/en not_active Application Discontinuation
- 1988-07-21 EP EP19880906571 patent/EP0328582A4/en not_active Withdrawn
- 1988-07-21 PT PT88065A patent/PT88065A/en not_active Application Discontinuation
- 1988-07-21 BR BR888807138A patent/BR8807138A/en unknown
- 1988-07-21 AU AU21340/88A patent/AU2134088A/en not_active Abandoned
-
1989
- 1989-03-21 DK DK138389A patent/DK138389A/en unknown
- 1989-03-21 FI FI891326A patent/FI891326A0/en not_active IP Right Cessation
Non-Patent Citations (2)
Title |
---|
No further relevant documents have been disclosed. * |
See also references of WO8900538A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2134088A (en) | 1989-02-13 |
WO1989000538A1 (en) | 1989-01-26 |
DK138389A (en) | 1989-05-19 |
FI891326A (en) | 1989-03-21 |
KR890701450A (en) | 1989-12-20 |
GB8817300D0 (en) | 1988-08-24 |
GB2208308A (en) | 1989-03-22 |
ES2011667A6 (en) | 1990-02-01 |
NZ225486A (en) | 1990-03-27 |
ZA885239B (en) | 1989-04-26 |
DK138389D0 (en) | 1989-03-21 |
PT88065A (en) | 1989-06-30 |
JPH02500825A (en) | 1990-03-22 |
AR240159A1 (en) | 1990-02-28 |
EP0328582A1 (en) | 1989-08-23 |
BR8807138A (en) | 1989-10-17 |
FI891326A0 (en) | 1989-03-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19890511 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 19900822 |
|
AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
DA4 | Supplementary search report drawn up and despatched (deleted) | ||
RA4 | Supplementary search report drawn up and despatched (corrected) |
Effective date: 19900926 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19920303 |