Patent US3979004A successfully refreshed from Google Patents.
US3979004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottle cap
Assignee: ALLUMINIO MAUCERI BORGHETTO SpA
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Filing: 1974-12-11
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Granted: 1976-09-07
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Expires: 1994-12-11
Abstract
Abstract A cap and stopper assembly for bottles is disclosed, in which the stopper is capable of being engaged by the top portion of the cap permanently and is so shaped as to cooperate with an undercut formed in the inner wall of the bottle mouth so as to ensure a tight seal, the stopper being bodily removed with the cap as the latter is unscrewed from the screw-threaded outer wall of the bottle mouth.
Inventors
- 👤 Luigi Bertario
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:18
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/58
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
141 words
A cap-and-stopper assembly for closing a bottle having an exteriorly threaded mouth, comprising a screw cap and a resilient stopper located inside the cap, the cap being formed by an end wall and by a lateral wall provided with internal threads and the stopper including a twin-conical wall tapered toward opposite ends and adapted to engage the inner wall of the bottle mouth and a peripheral bead coaxial with the twin-conical wall and held between the end wall of the cap and an annular inner ledge of the lateral wall of the cap so that the stopper will be removed from the bottle mouth when the cap is unscrewed from the bottle, said stopper further includes a central cylindrical closed body, from which the twin-conical wall coaxially extends, and an annular flange which connects said twin-conical wall to the peripheral bead.
Claim 2
Dependent Claim
141 words
A cap-and-stopper assembly for closing a bottle having an exteriorly threaded mouth, comprising a screw cap and a resilient stopper located inside the cap, the cap being formed by an end wall and by a lateral wall provided with internal threads and the stopper including a twin-conical wall tapered toward opposite ends and adapted to engage the inner wall of the bottle mouth and a peripheral bead coaxial with the twin-conical wall and held between the end wall of the cap and an annular inner ledge of the lateral wall of the cap so that the stopper will be removed from the bottle mouth when the cap is unscrewed from the bottle, said stopper further includes a central cylindrical closed body, from which the twin-conical wall coaxially extends, and an annular flange which connects said twin-conical wall to the peripheral bead.
Claim 3
Dependent Claim
20 words
An assembly as in claim 1 wherein the peripheral bead of the stopper is resiliently stressed to a flared outline.
Claim 4
Dependent Claim
21 words
An assembly as in claim 1 wherein the cap comprises a guaranty strip connected to the lateral wall by rupturable joints.
References Cited (Backward Citations)
BE504063A
Cited
FR1112159A
Cited
FR1159427A
Cited
US3057501A
Cited
FR1372671A
Cited
US3318496A
Cited
US3317069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |