Patent US3209659A successfully refreshed from Google Patents.
US3209659A
Expired / Lapsed
US
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Cylinder sleeve seal
Assignee: Fel Pro Inc
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Filing: 1962-12-31
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Granted: 1965-10-05
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Colwell Otha Leroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:57
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/08; F16J15/0887; F02; F02F; F02F11/00; F02F11/002; F16J15/0881
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A CYLINDER SLEEVE SEAL COMPRISING AN ANNULAR GASKET HAVING AN ARCUATE CROSS SECTIONAL CONFIGURATION, SAID GASKET HAVING AN INNER EDGE ADAPTED TO SEAT ON A SURFACE, AN OUTER EDGE ADAPTED TO SEAT ON A SURFACE IN A DIFFERENT PLANE, AND AN ARCUATE CROWNED SURFACE ENGAGEABLE WITH A MEMBER ADAPTED TO EXERT COMPRESSIVE FORCE AGAINST SAID GASKET TO URGE EACH OF SAID EDGES AGAINST THE SURFACE ON WHICH IT IS SEATED.
Claim 2
Dependent Claim
70 words
A CYLINDER SLEEVE SEAL COMPRISING AN ANNULAR GASKET HAVING AN ARCUATE CROSS SECTIONAL CONFIGURATION, SAID GASKET HAVING AN INNER EDGE ADAPTED TO SEAT ON A SURFACE, AN OUTER EDGE ADAPTED TO SEAT ON A SURFACE IN A DIFFERENT PLANE, AND AN ARCUATE CROWNED SURFACE ENGAGEABLE WITH A MEMBER ADAPTED TO EXERT COMPRESSIVE FORCE AGAINST SAID GASKET TO URGE EACH OF SAID EDGES AGAINST THE SURFACE ON WHICH IT IS SEATED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |