US3743131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure for open-mouthed containers or tubular vessels
Assignee: Dart Industries Inc
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Filing: 1970-06-22
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Granted: 1973-07-03
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Expires: 1990-06-22
Abstract
Abstract A closure suitable for insertion over the opening of a tubular or similarly constructed member and adapted to hermetically seal that opening. The closure construction includes a conical central wall that peculiarly adapts it for placement upon the tubular member by the application of pressure to the approximate center of the central wall.
Inventors
- 👤 J Croyle
- 👤 J Swett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:03
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0214; B65D43/022; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00342; B65D2543/0037; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00509; B65D2543/00537; B65D2543/00546; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00629; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00796
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
84 words
A locally distortable plastic closure contractably and distensibly constructed and having an elastic memory such that it is adapted to hermetically seal an open-mouthed member and comprising: a downwardly disposed conical means emanating from a center portion to a peripherally positioned integral wall and adapted for the application of pressure to the approximate center thereof in such a manner that said means tends to collapse upon itself and substantially uniformly displace said integral wall until said closure is easily positionable on an open-mouthed member.
Claim 2
Dependent Claim
84 words
A locally distortable plastic closure contractably and distensibly constructed and having an elastic memory such that it is adapted to hermetically seal an open-mouthed member and comprising: a downwardly disposed conical means emanating from a center portion to a peripherally positioned integral wall and adapted for the application of pressure to the approximate center thereof in such a manner that said means tends to collapse upon itself and substantially uniformly displace said integral wall until said closure is easily positionable on an open-mouthed member.
Claim 3
Dependent Claim
63 words
A plastic closure according to claim 1 wherein said integral wall is an extended sealing means positioned around said conical means and is displaceable such that at least a portion thereof is closely engageable with and sealable against the walls of an open-mouthed member due to the resiliency and elastic memory of said closure upon the discontinuance of applied pressure to said means.
Claim 4
Dependent Claim
155 words
A locally distortable injection molded thermoplastic closure contractably and distensibly constructed and having an elastic memory such that it is adapted to hermetically seal an open-mouthed member and comprising: a. conical means emanating from a center portion of said closure toward a peripheral wall and being adaPted for the application of pressure to the approximate center thereof in such manner that said conical means tends to collapse upon itself and substantially uniformly displace said peripheral wall until said closure is easily positionable on an open-mouthed member; and, b. integral extended sealing means positioned around said peripheral wall of the conical means, said sealing means being displaceable in like manner with said peripheral wall such that at least a portion of said sealing means is closely engageable with sealable against the walls of an open-mouthed member due to the resiliency and elastic memory of said closure upon the discontinuance of applied pressure to said central wall.
Claim 5
Dependent Claim
155 words
A locally distortable injection molded thermoplastic closure contractably and distensibly constructed and having an elastic memory such that it is adapted to hermetically seal an open-mouthed member and comprising: a. conical means emanating from a center portion of said closure toward a peripheral wall and being adaPted for the application of pressure to the approximate center thereof in such manner that said conical means tends to collapse upon itself and substantially uniformly displace said peripheral wall until said closure is easily positionable on an open-mouthed member; and, b. integral extended sealing means positioned around said peripheral wall of the conical means, said sealing means being displaceable in like manner with said peripheral wall such that at least a portion of said sealing means is closely engageable with sealable against the walls of an open-mouthed member due to the resiliency and elastic memory of said closure upon the discontinuance of applied pressure to said central wall.
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |