US3924008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible pouches for carbonated beverages
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1972-06-21
•
Granted: 1975-12-02
•
Expires: 1992-06-21
Abstract
Abstract A package comprising a plastics-film tubular pouch with liquid contents at superatmospheric pressure, cylindrical and with a supporting sleeve over the major part of its length, but with saddle-shaped ends, one of which is provided with an emptying port.
Inventors
- 👤 Andrew George Ford
- 👤 Dennis Ridley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:00
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/02; B65D33/16; B65D33/1691; B65D75/00; B65D75/38; B65D75/52; B65D75/58; B65D75/5894; B65D75/40; B65D75/44; B65D75/48
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
142 words
A POUCH FOR FORMING A PRESSURIZED PACKAGE COMPRISING A LENGTH OF FLATTENED TUBULAR PLASTICS FILM SEALED AT EACH END BY A TRANSVERSE LINEAR SEAL, SUCH THAT THE POUNCH ON INFLATION ASSUMES A SUBSTANTIALLY CYLINDRICAL SHAPE OVER THE MAJOR PART OF ITS LENGTH WITH APPROXIMATELY SADDLE-SHAPED ENDS, AND HAVING AN EMPTYING PORT IN EACH WALL IN AN END PART OF THE POUNCH, EACH PORT COMPRISING A PLURALITY OF SMALL HOLES IN THE WALL OF THE POUCH AND EACH PORT BEING SEALED BY A REMOVABLY-ADHERED STRIP OF GAS-TIGHT FLEXIBLE MATERIAL EXTENDING ACROSS THE END OF THE POUCH, ADHERED ACROSS AND AROUND EACH EMPTYING PORT TO SEAL THE HOLES BUT REMAINING SUBSTANTIALLY UNATTACHED TO THE POUCH ACROSS THE END THEREOF AND THE POUCH HAVING A FILLING APERTUE IN ITS WALL, IN THE PART THEREOF THAT ASSUMES A SUBSTANTIALLY CYLINDRICAL SHAPE WHEN THE POUCH IS INFLATED.
Claim 2
Dependent Claim
142 words
A POUCH FOR FORMING A PRESSURIZED PACKAGE COMPRISING A LENGTH OF FLATTENED TUBULAR PLASTICS FILM SEALED AT EACH END BY A TRANSVERSE LINEAR SEAL, SUCH THAT THE POUNCH ON INFLATION ASSUMES A SUBSTANTIALLY CYLINDRICAL SHAPE OVER THE MAJOR PART OF ITS LENGTH WITH APPROXIMATELY SADDLE-SHAPED ENDS, AND HAVING AN EMPTYING PORT IN EACH WALL IN AN END PART OF THE POUNCH, EACH PORT COMPRISING A PLURALITY OF SMALL HOLES IN THE WALL OF THE POUCH AND EACH PORT BEING SEALED BY A REMOVABLY-ADHERED STRIP OF GAS-TIGHT FLEXIBLE MATERIAL EXTENDING ACROSS THE END OF THE POUCH, ADHERED ACROSS AND AROUND EACH EMPTYING PORT TO SEAL THE HOLES BUT REMAINING SUBSTANTIALLY UNATTACHED TO THE POUCH ACROSS THE END THEREOF AND THE POUCH HAVING A FILLING APERTUE IN ITS WALL, IN THE PART THEREOF THAT ASSUMES A SUBSTANTIALLY CYLINDRICAL SHAPE WHEN THE POUCH IS INFLATED.
Claim 3
Dependent Claim
97 words
A pouch as claimed in claim 1 having its end portions reinforced by a band of flexible sheet material bonded to and extending over the end of the pouch from one side to the other, the ends of the band extending to the portion of the pouch that assumes a substantially cylindrical shape on inflation, the side edges of the band extending beyond the sides of the pouch, and here being bonded together, and the emptying ports in the end part of the pouch being formed through both the wall of the pouch and the reinforcing band.
Claim 4
Dependent Claim
52 words
A package that comprises a pouch according to claim 1 with contents at sustained super-atmospheric pressure, the pressurized pouch thus being of substantially cylindrical shape over the major part of its length with approximately saddle-shaped ends and the package having a supporting sleeve surrounding the substantially cylindrical part of the pressurized pouch.
Claim 5
Dependent Claim
81 words
A package as claimed in claim 3 having its end portions reinforced each by a band of flexible sheet material extending over the saddle end from one side of the package to the other, the ends of the band extending into the supporting sleeve, the side edges of the band extending beyond the sides of the pouch, and here being bonded together, said apertures and said emptying ports being formed through both the wall of the pouch and the reinforcing band.
Claim 6
Dependent Claim
49 words
A package as claimed in claim 3 in which the strip of gas-tight flexible material extends into the supporting sleeve at each side of the pack, but at least one of its ends is turned back to project from the sleeve to form an opening tag for the package.
References Cited (Backward Citations)
US1916854A
Cited
US2218670A
Cited
US2757855A
Cited
US3106329A
Cited
US3166226A
Cited
US3282411A
Cited
US3240327A
Cited
US3208640A
Cited
US3228585A
Cited
US3281009A
Cited
US3620774A
Cited
US3567111A
Cited
US3650458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |