US3620774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastics containers and packages
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1968-08-01
•
Granted: 1971-11-16
•
Expires: 1988-08-01
Abstract
Abstract A plastics film container containing a gas under superatmospheric pressure, e.g. beer or a soft drink, closed by a ligature applied to the sealed, bunched neck below a thickened region thereof.
Inventors
- 👤 Andrew George Ford
- 👤 Ronald Augustus Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:27
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/40; B65D75/44; B65D75/48
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
19 words
A package as claimed in claim 1 in which the plastic film is biaxially oriented film of polyethylene terephthalate.
Claim 2
Dependent Claim
21 words
A package as claimed in claim 2 having a coating of vinylidene chloride polymer or copolymer on the outer surface thereof.
Claim 3
Dependent Claim
32 words
A package as claimed in claim 1, having a tubular sleeve of the same or a different plastic film disposed substantially around the whole of the cylindrical portion of the tubular film.
Claim 4
Dependent Claim
29 words
A package as claimed in claim 1 in which the said thickened region comprises additional material disposed at the inner surface of the end portion of the tubular film.
Claim 5
Dependent Claim
36 words
A package as claimed in claim 5 in which said additional material is a flexible tape coated on both sides with adhesive and applied around the inner surface of the end portion of the tubular film.
Claim 6
Dependent Claim
29 words
A package as claimed in claim 1 in which the said thickened region comprises additional material applied to the outer surface of the end portion of the tubular film.
Claim 7
Dependent Claim
23 words
A package as claimed in claim 7 in which the additional layers of material are sealed to the surface of the tubular film.
Claim 8
Dependent Claim
37 words
A package as claimed in claim 7 in which the thickened region comprises the end of the flattened tubular film being folded over upon itself and all the layers of the folded over portion being sealed together.
Claim 9
Dependent Claim
22 words
A package as claimed in claim 7 in which the additional material is coated upon the outer walls of the tubular film.
Claim 10
Dependent Claim
31 words
A package as claimed in claim 1 in which the thickened region comprises the walls of the tubular film which are bunched and sealed together by a crimped or embossed seal.
Claim 11
Dependent Claim
28 words
A package as claimed in claim 1, closed at each end by a bunched neck and provided with a filling aperture in the wall of the tubular film.
Claim 12
Dependent Claim
32 words
A package as claimed in claim 1, in which a continuous seal is provided between the walls of the neck of the tubular film to seal all capillaries through the bunched neck.
Claim 13
Dependent Claim
58 words
A package as claimed in claim 1 in which the tubular film is closed at each end by the said bunched neck and a tubular sleeve of flexible material is disposed around substantially the whole of the cylindrical portion of the tubular film, said flexible material being sealed or adhered to the tubular film by heat or adhesive.
Claim 14
Dependent Claim
56 words
A package as claimed in claim 1 in which the opposed inner walls at both ends of the tubular film are sealed together in flat contact and are gathered together to form a bunched neck, said neck being closely held by an encircling closure device located between the said seal and contents within the tubular film.
Claim 15
Dependent Claim
34 words
A package as claimed in claim 1, having a filling aperture in the cylindrical wall thereof sealed by a patch of flexible sheet material adhered to the wall of the container around the aperture.
Claim 16
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 17
Dependent Claim
28 words
A package as claimed in claim 1 in which the package is formed of double walled tubing, the two walls being of the same or different plastics materials.
Claim 18
Dependent Claim
20 words
A package as claimed in claim 1 in which the encircling closure is a ligature formed of plastics coated wire.
Claim 19
Dependent Claim
12 words
A package as claimed in claim 1 which contains a carbonated drink.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |