US3589506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastics containers and packages
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1968-08-01
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Granted: 1971-06-29
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Expires: 1988-08-01
Abstract
Abstract Plastics film container for contents under superatmospheric pressure, closed by a bunched neck provided with a sealable material forming an internal gasket, and an external mechanical closure, and with a releasably sealed tube passing through the bunched neck.
Inventors
- 👤 Andrew George Ford
- 👤 Ronald Augustus Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:33
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/1616; B65D81/00; B65D81/18; B65D81/20; B65D81/2046; B65D81/2061
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
129 words
A package comprising a plastics film container and contents under superatmospheric pressure, the said container comprising a length of oriented, seamless tubular film which is closed at both of its ends by a bunched neck gripped by an encircling mechanical closure thereon, a length of substantially rigid tubing passing through a said bunched neck into the container and a gasket disposed between the film and the tubing where the film is gripped by the closure, said gasket being effective to seal any capillaries leading from inside the container to the atmosphere and thereby seal the said container and rigid tubing from the atmosphere, said gasket comprising a flexible tape coated on both sides with adhesive and applied around the inner surface of the neck of the container before bunching.
Claim 2
Dependent Claim
129 words
A package comprising a plastics film container and contents under superatmospheric pressure, the said container comprising a length of oriented, seamless tubular film which is closed at both of its ends by a bunched neck gripped by an encircling mechanical closure thereon, a length of substantially rigid tubing passing through a said bunched neck into the container and a gasket disposed between the film and the tubing where the film is gripped by the closure, said gasket being effective to seal any capillaries leading from inside the container to the atmosphere and thereby seal the said container and rigid tubing from the atmosphere, said gasket comprising a flexible tape coated on both sides with adhesive and applied around the inner surface of the neck of the container before bunching.
Claim 3
Dependent Claim
19 words
A package as claimed in claim 1 in which the plastics film is biaxially oriented film of polyethylene terephthalate.
Claim 4
Dependent Claim
21 words
A package as claimed in claim 1 in which the film bears a coating of a vinylidene chloride polymer or copolymer.
Claim 5
Dependent Claim
12 words
A package a claimed in claim 1, formed of double-walled plastics tubing.
Claim 6
Dependent Claim
24 words
A package as claimed in claim 1, provided with a tubular supporting sleeve around substantially the whole of the cylindrical part of the container.
Claim 7
Dependent Claim
23 words
A package as claimed in claim 1 in which the wall of the substantially rigid tubing is indented by the encircling mechanical closure.
Claim 8
Dependent Claim
23 words
A package as claimed in claim 1 in which the container has a length of substantially rigid tubing passing through each bunched neck.
Claim 9
Dependent Claim
59 words
A package as claimed in claim 1 in which the container material is formed from polyethylene terephthalate film that has been biaxially oriented to draw ratios such that, where the circumferential draw ratio is x:1 and the longitudinal draw ratio y:1, then the product xy is from 12 to 15 and the ratio x/y is from 1.3 to 1.8.
Claim 10
Dependent Claim
15 words
A package as claimed in claim 1 which contains a liquid and an aerosol propellant.
Claim 11
Dependent Claim
14 words
A package claimed in claim 1, with contents including a gas under superatmospheric pressure.
Claim 12
Dependent Claim
18 words
A package as claimed in claim 1 in which the substantially rigid tubing is of a plastics material.
Claim 13
Dependent Claim
23 words
A package as claimed in claim 11 in which the plastics material is selected from the group consisting of polythene, polypropylene and nylon.
Claim 14
Dependent Claim
59 words
A package as claimed in claim 1 in which the container material is formed from polyethylene terephthalate film that has been biaxially oriented to draw ratios such that, where the circumferential draw ratio is x:1 and the longitudinal draw ratio y:1, then the product xy is from 7 to 16 and the ratio x/y is from 1.2 to 2.5.
Claim 15
Dependent Claim
29 words
A package as claimed in claim 13 in which the container is provided with a tubular supporting sleeve around substantially the whole of the cylindrical part of the container.
Claim 16
Dependent Claim
33 words
A package as claimed in claim 14 in which the tubular supporting sleeve is extended at least to the level of the lowermost part of the container, to provide a free standing support.
References Cited (Backward Citations)
BE520561A
Cited
GB900753A
Cited
GB957509A
Cited
GB926159A
Cited
IT649849A
Cited
FR1447945A
Cited
US3358821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |