Patent US3869059A successfully refreshed from Google Patents.
US3869059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stoppers
Assignee: SURGICAL EQUIPMENT SUPPLIES Ltd
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Filing: 1973-06-21
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Granted: 1975-03-04
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Expires: 1993-06-21
Abstract
Abstract A stopper having a body with a sealing surface to engage the inside of a bottle neck, and an integral flexible lip extending from the body to an edge which is to engage the inside of the neck in substantial line contact, the outer surface of the lip being concave when unstressed.
Inventors
- 👤 Gerard Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:24
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/16; B65D41/18; B65D41/185; Y; Y10; Y10S; Y10S215/00; Y10S215/01; Y10S215/03
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
127 words
A stopper of rubber or rubber-like material suitable for use in in-bottle sterilization, comprising a body having an external generally cylindrical sealing surface for engaging the inside of the neck of a bottle, the body having an internal cavity extending inside the sealing surface and adapted to be exposed in use to the pressure within the bottle; and an integral flexible lip extending from said body to an edge substantially co-axial with said sealing surface for engaging the inside of the neck in substantial line contact, the configuraTion of said stopper being such that, in the unstressed state, the edge is of greater diameter than the sealing surface, and the lip has an outer surface which is concave and an inner surface which merges into the cavity.
Claim 2
Dependent Claim
127 words
A stopper of rubber or rubber-like material suitable for use in in-bottle sterilization, comprising a body having an external generally cylindrical sealing surface for engaging the inside of the neck of a bottle, the body having an internal cavity extending inside the sealing surface and adapted to be exposed in use to the pressure within the bottle; and an integral flexible lip extending from said body to an edge substantially co-axial with said sealing surface for engaging the inside of the neck in substantial line contact, the configuraTion of said stopper being such that, in the unstressed state, the edge is of greater diameter than the sealing surface, and the lip has an outer surface which is concave and an inner surface which merges into the cavity.
Claim 3
Dependent Claim
45 words
A stopper as claimed in claim 1, wherein the body has a further sealing surface for engaging the outer surface of a bottle neck, the said sealing surfaces together defining a deep annular groove in the body for receiving the wall of the bottle neck.
Claim 4
Dependent Claim
26 words
A stopper as claimed in claim 2, wherein said groove terminates in an annular cavity for receiving a flange on the rim of the bottle neck.
Claim 5
Dependent Claim
135 words
The combination of a bottle having a neck, and a stopper of rubber or rubber-like material suitable for use in in-bottle sterilization, the stopper comprising a body having an external generally cylindrical sealing surface for engaging the inside of said neck, the body having an internal cavity extending inside the sealing surface and adapted to be exposed in use to the pressure within the bottle, and an integral flexible lip extending from said body to an edge substantially co-axial with said sealing surface for engaging the inside of said neck in substantial line contact, the configuration of said stopper being such that, in the unstressed state, the edge is of greater diameter than the sealing surface, and the lip has an outer surface which is concave and an inner surface which merges into the cavity.
Claim 6
Dependent Claim
135 words
The combination of a bottle having a neck, and a stopper of rubber or rubber-like material suitable for use in in-bottle sterilization, the stopper comprising a body having an external generally cylindrical sealing surface for engaging the inside of said neck, the body having an internal cavity extending inside the sealing surface and adapted to be exposed in use to the pressure within the bottle, and an integral flexible lip extending from said body to an edge substantially co-axial with said sealing surface for engaging the inside of said neck in substantial line contact, the configuration of said stopper being such that, in the unstressed state, the edge is of greater diameter than the sealing surface, and the lip has an outer surface which is concave and an inner surface which merges into the cavity.
References Cited (Backward Citations)
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Cited
US1706249A
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US1946981A
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US2393578A
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US3455500A
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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) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |