US4754892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure for a container
Assignee: Individual
•
Filing: 1987-01-21
•
Granted: 1988-07-05
•
Expires: 2007-01-21
Abstract
Abstract A closure for a container which includes a cap comprising an end panel wall, and a cylindrical skirt wall extending from the peripheral edge of the end panel wall. A container opening sealing member is located inside the cap on the inside of the cylindrical skirt wall and adjacent the end panel wall, the sealing member having been formed inside the cylindrical skirt wall against the end panel wall.
Inventors
- 👤 Charles T. Retief
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:26
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/16; B29C45/1635; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; B65D41/045; B65D53/00; B65D53/04; B29C2045/167; B29L; B29L2031/00; B29L2031/26; B29L2031/265; B29L2031/56; B29L2031/565
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
A closure for a container, said closure comprising (a) a cap comprising a disc-shaped end panel wall, and a cylindrical skirt wall extending from the peripheral edge of the end panel wall; (b) an injection molded sealing member for sealing a container opening, said sealing member being located inside the cap on the inside of the cylindrical skirt wall and adjacent the end panel wall; and (c) a passage in the cap through which the material that forms the sealing member is injection molded into the cap and which is at least partially filled with the material that forms the sealing member.
Claim 2
Dependent Claim
102 words
A closure for a container, said closure comprising (a) a cap comprising a disc-shaped end panel wall, and a cylindrical skirt wall extending from the peripheral edge of the end panel wall; (b) an injection molded sealing member for sealing a container opening, said sealing member being located inside the cap on the inside of the cylindrical skirt wall and adjacent the end panel wall; and (c) a passage in the cap through which the material that forms the sealing member is injection molded into the cap and which is at least partially filled with the material that forms the sealing member.
Claim 3
Dependent Claim
19 words
A closure as claimed in claim 1, in which the passage is located in the disc-shaped end panel wall.
Claim 4
Dependent Claim
16 words
A closure as claimed in claim 1, in which the passage is of truncated conical shape.
Claim 5
Dependent Claim
32 words
A closure as claimed in claim 1, in which an annular groove is provided in the cylindrical skirt wall adjacent the end panel wall, in which groove the sealing member is located.
Claim 6
Dependent Claim
25 words
A closure as claimed in claim 1, in which the annular groove has an inclined annular wall which is widest at the end panel wall.
Claim 7
Dependent Claim
43 words
A closure as claimed in claim 1, in which an internal thread is provided on the inner surface of the cylindrical skirt wall, the internal thread being adapted to engage with a complimentary external thread on a mouth neck portion of a container.
Claim 8
Dependent Claim
35 words
A closure as claimed in claim 1, in which the cap and the sealing member are constituted by different synthetic plastics materials, the cap being made of a more rigid material than the sealing member.
References Cited (Backward Citations)
US2072536A
Cited
GB500388A
Cited
CH464721A
Cited
US3458077A
Cited
US4374796A
Cited
US4485065A
Cited
US4489844A
Cited
US4674642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-05 | 1992-01-04 | 1992-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-05 | 1996-01-04 | 1996-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-05 | 2000-01-04 | 2000-07-05 | $7700.00 | Window Closed / Lapsed |