Patent US4585135A successfully refreshed from Google Patents.
US4585135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw closure
Assignee: WR Grace and Co Conn
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Filing: 1985-02-27
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Granted: 1986-04-29
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Expires: 2005-02-27
Abstract
Abstract A bottle closure comprises a cap moulded of a first plastics material includes a skirt having a step between a first inner surface portion and a second inner surface portion of the skirt, and a gasket of a second plastics composition covering a radially outer part of the inner surface of the cap end panel and also the first inner surface portion of the skirt and preferbly at least a part of the second inner surface portion, to achieve a combined side seal and top seal upon application of the closure to a bottle neck.
Inventors
- 👤 Kenneth M. Sinnott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:07
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; B65D41/0442; B29; B29C; B29C45/00; B29C45/16; B29C45/1676
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
188 words
A closure for a container comprising a molded cap comprising a first plastics material, said cap having an end panel and a skirt downwardly depending from the end panel, the skirt having a radially inwardly facing surface stepped to define a first and a second inner surface portion of which the second inner surface portion is further from the end panel, and the first inner surface portion has a diameter smaller than the second inner surface portion, the skirt being internally threaded for engagement with external threading on a neck of the container the internal threads of the skirt being separated from the first and second inner surface portions and the end panel by a substantially planar surface; and a gasket formed in situ on the end panel near its junction with the skirt, the gasket comprising a second plastics material which is softer than the first plastics material, said gasket extending over the first inner surface portion and at least a part of the second inner surface portion such that when the closure is driven downwardly onto the neck of the container a side seal is formed.
Claim 2
Dependent Claim
188 words
A closure for a container comprising a molded cap comprising a first plastics material, said cap having an end panel and a skirt downwardly depending from the end panel, the skirt having a radially inwardly facing surface stepped to define a first and a second inner surface portion of which the second inner surface portion is further from the end panel, and the first inner surface portion has a diameter smaller than the second inner surface portion, the skirt being internally threaded for engagement with external threading on a neck of the container the internal threads of the skirt being separated from the first and second inner surface portions and the end panel by a substantially planar surface; and a gasket formed in situ on the end panel near its junction with the skirt, the gasket comprising a second plastics material which is softer than the first plastics material, said gasket extending over the first inner surface portion and at least a part of the second inner surface portion such that when the closure is driven downwardly onto the neck of the container a side seal is formed.
Claim 3
Dependent Claim
97 words
A closure for a container comprising a molded cap of a first plastic material, the cap having an end panel and an internally threaded skirt extending downwardly from the end panel, the end panel being substantially planar the skirt having a substantially thickened area adjacent the end panel and a substantially planar area between the substantially thickened area and the internal threads, and a gasket formed in situ on the end panel and extending over the substantially thickened area onto the skirt, the gasket comprising a second plastic material which is softer than the first plastic material.
Claim 4
Dependent Claim
97 words
A closure for a container comprising a molded cap of a first plastic material, the cap having an end panel and an internally threaded skirt extending downwardly from the end panel, the end panel being substantially planar the skirt having a substantially thickened area adjacent the end panel and a substantially planar area between the substantially thickened area and the internal threads, and a gasket formed in situ on the end panel and extending over the substantially thickened area onto the skirt, the gasket comprising a second plastic material which is softer than the first plastic material.
Claim 5
Dependent Claim
93 words
A closure for a container comprising a molded cap having an end panel and a skirt depending downwardly from the end panel and having internal threads, a shoulder formed at a junction between the end panel and the skirt, the skirt having a substantially planar surface extending downwardly on a side of the skirt opposite the end panel from the shoulder to the internal threads and a gasket formed in situ on the end panel and extending over the shoulder and at least a part of the substantially planar surface of the skirt.
Claim 6
Dependent Claim
93 words
A closure for a container comprising a molded cap having an end panel and a skirt depending downwardly from the end panel and having internal threads, a shoulder formed at a junction between the end panel and the skirt, the skirt having a substantially planar surface extending downwardly on a side of the skirt opposite the end panel from the shoulder to the internal threads and a gasket formed in situ on the end panel and extending over the shoulder and at least a part of the substantially planar surface of the skirt.
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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) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |