US4762246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Containers
Assignee: Crown Packaging UK Ltd
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Filing: 1987-08-20
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Granted: 1988-08-09
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Expires: 2007-08-20
Abstract
Abstract A container for foodstuffs and beverages comprising a vessel having a mouth surrounded by a rim presenting an upper surface of plastics material, and a lid, comprising a diaphragm secured by an endless weld to the upper surface and covering the mouth. The diaphragm has a perforation consisting of at least one through hole and a peel strip sealingly but peelably secured over the perforation. The peel strip has a pull tab formed by a portion of the peel strip folded back on itself and situated outside the perforation. Further, the peel strip has a transverse cut across part of its width at the junction of the pull tab with the remainder of the peel strip on the side of the pull tab remote from the perforation.
Inventors
- 👤 Robert J. Ashley
- 👤 John D. Miller
- 👤 Maurice F. Ring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:11
CPC Classifications
B; B32; B32B; B32B1/00; B65; B65B; B65B7/00; B65B7/01; B32B15/00; B32B15/04; B32B27/00; B32B27/06; B32B27/32; B32B7/00; B32B7/04; B32B7/12; B65D; B65D77/00; B65D77/10; B65D77/20; B65D77/2024; B65D77/2028; B65D77/2032; B65D77/2044; B65D77/2048; B65D77/2056; B65D77/206; B32B2307/00; B32B2307/40; B32B2307/412; B32B2311/00; B32B2323/00; B32B2323/10; B32B2439/00; B32B2439/40
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
126 words
A container for foodstuffs and beverages, comprisng a vessel having a mouth surrounded by a rim presenting an upper surface of plastics material, and a lid, comprising a diaphragm secured by an endless weld to said upper surface and covering the mouth, the diaphragm having a perforation consisting of at least one through hole, and a peel strip sealingly but peelably secured over the perforation, the peel strip having a pull tab, formed by a portion of the peel strip folded back on itself and situated outside the perforation, the peel strip having a transverse cut across part of its width at the junction of the pull tab with the remainder of the peel strip on the side of the pull tab remote from the perforation.
Claim 2
Dependent Claim
126 words
A container for foodstuffs and beverages, comprisng a vessel having a mouth surrounded by a rim presenting an upper surface of plastics material, and a lid, comprising a diaphragm secured by an endless weld to said upper surface and covering the mouth, the diaphragm having a perforation consisting of at least one through hole, and a peel strip sealingly but peelably secured over the perforation, the peel strip having a pull tab, formed by a portion of the peel strip folded back on itself and situated outside the perforation, the peel strip having a transverse cut across part of its width at the junction of the pull tab with the remainder of the peel strip on the side of the pull tab remote from the perforation.
Claim 3
Dependent Claim
33 words
A container according to claim 1, wherein the diaphragm and peel strip are each of laminated construction having barrier properties substantially similar to those of the vessel, whereby the container is hermetically sealed.
Claim 4
Dependent Claim
32 words
A container according to claim 2, wherein the peel strip is in the form of a strip extending across the diaphragm from one side of the diaphragm to the opposite side thereof.
Claim 5
Dependent Claim
42 words
A container according to claim 3, wherein the pull tab is located at an intermediate position on the peel strip, the peel strip being secured to the diaphragm at the ends of the peel strip and at least locally of the perforation.
Claim 6
Dependent Claim
36 words
A container according to claim 1, wherein the diaphragm is of laminated construction including an outer layer of a lacquer heat sealed to the underside of the peel strip to form a sealable but peelable interface.
Claim 7
Dependent Claim
21 words
A container according to claim 5, wherein the lacquer comprises a blend of epoxy resin with a maleic anhydride modified polypropylene.
Claim 8
Dependent Claim
31 words
A container according to claim 1, wherein the diaphragm is of laminated construction including an inner layer of the same material as the vessel or a material having substantially similar characteristics.
Claim 9
Dependent Claim
25 words
A container according to claim 1, wherein the diaphragm is of laminated construction including an intermediate layer of metal foil or a polymeric barrier material.
Claim 10
Dependent Claim
25 words
A container according to claim 1, wherein the peel strip is of laminated construction including a barrier layer of metal foil or a polymeric material.
Claim 11
Dependent Claim
24 words
A container according to claim 1, wherein the peel strip is of laminated construction including a lower layer adjacent the diaphragm of polymeric material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-09 | 1992-02-08 | 1992-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-09 | 1996-02-08 | 1996-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-09 | 2000-02-08 | 2000-08-09 | $7700.00 | Window Closed / Lapsed |