Patent US3831950A successfully refreshed from Google Patents.
US3831950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasket for closure seal
Assignee: Chicago Bridge and Iron Co
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Filing: 1971-11-10
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Granted: 1974-08-27
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Expires: 1991-11-10
Abstract
Abstract A sealing gasket in the form of a strip of resilient material having sealing faces on two opposing sides, a pair of longitudinal spaced apart protuberances on each sealing face defining a longitudinal trough therebetween and each protuberance having a pair of ridges defining a groove therebetween, said groove being shallower than the trough on the same sealing face.
Inventors
- 👤 R Bentley
- 👤 J Stubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:35
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3232; F16J15/3236; F16J15/46; Y; Y10; Y10S; Y10S277/00; Y10S277/921
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
146 words
In a closure construction, a sealing means between a first member and a second member having opposed matching surfaces, comprising: a channel provided in said surface of said first member; an integral resilient sealing gasket mounted in said channel of said first member; said sealing gasket comprising an elongated strip of resilient material having sealing faces on two opposing sides of the strip with one of said sealing faces in contact with the channel bottom; a pair of longitudinal spaced apart protuberances on each of the sealing faces defining a longitudinal trough therebetween; fluid conduit means communicating with a trough of said sealing gasket for fluid flow between the trough and the outside of the adjacent first or second member; and each of said protuberances having a pair of ridges defining a groove therebetween, said groove being shallower than the trough on the same sealing face.
Claim 2
Dependent Claim
146 words
In a closure construction, a sealing means between a first member and a second member having opposed matching surfaces, comprising: a channel provided in said surface of said first member; an integral resilient sealing gasket mounted in said channel of said first member; said sealing gasket comprising an elongated strip of resilient material having sealing faces on two opposing sides of the strip with one of said sealing faces in contact with the channel bottom; a pair of longitudinal spaced apart protuberances on each of the sealing faces defining a longitudinal trough therebetween; fluid conduit means communicating with a trough of said sealing gasket for fluid flow between the trough and the outside of the adjacent first or second member; and each of said protuberances having a pair of ridges defining a groove therebetween, said groove being shallower than the trough on the same sealing face.
Claim 3
Dependent Claim
30 words
A closure construction sealing means according to claim 1 in which a fluid conduit communicated from each of said troughs to the outside of the adjacent first or second member.
References Cited (Backward Citations)
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US2330220A
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US2684262A
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US2841429A
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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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |