US3269695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve construction
Assignee: Individual
•
Filing: 1965-05-05
•
Granted: 1966-08-30
•
Expires: 1985-05-05
Abstract
No abstract record available.
Inventors
- 👤 Marvin H Grove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:01
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/0227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
IN A VALVE CONSTRUCTION, A BODY PART HAVING FLOW PASSAGES THERETHROUGH, A VALVE PART DISPOSED WITHIN THE BODY PART AND MOVABLE BETWEEN OPEN AND CLOSED POSITIONS, THE VALVE PART HAVING A VALVE WORKING SURFACE, AND ANNULAR SEALING MEANS SURROUNDING ONE OF THE BODY PASSAGES AND CARRIED BY THE BODY PART, SAID SEALING MEANS INCLUDING AN ANNULAR SEAL MEMBER OF RELATIVELY HARD RESILIENT NYLON CARRIED BY THE BODY, ONE END PORTION OF SAID SEAL MEMBER NORMALLY CONTACTING SAID VALVE WORKING SURFACE, A RECESS FORMED IN SAID ONE END OF THE SEAL MEMBER, SAID RECESS BEING DEFINED BY OUTER AND INNER SIDES AND A BOTTOM SURFACE, SAID SEAL MEMBER HAVING CONCENTRIC ANNULAR PORTIONS FORMED INTEGRAL THEREWITH AND LOCATED AT THE INNER AND OUTER SIDES OF SAID RECESS AND FORMING SAID END PORTION OF THE ANNULAR SEAL MEMBER, AND AN INSERT OF SOFTER RESILIENT NON-METALLIC MATERIAL OF DUROMETER
Claim 2
Dependent Claim
145 words
IN A VALVE CONSTRUCTION, A BODY PART HAVING FLOW PASSAGES THERETHROUGH, A VALVE PART DISPOSED WITHIN THE BODY PART AND MOVABLE BETWEEN OPEN AND CLOSED POSITIONS, THE VALVE PART HAVING A VALVE WORKING SURFACE, AND ANNULAR SEALING MEANS SURROUNDING ONE OF THE BODY PASSAGES AND CARRIED BY THE BODY PART, SAID SEALING MEANS INCLUDING AN ANNULAR SEAL MEMBER OF RELATIVELY HARD RESILIENT NYLON CARRIED BY THE BODY, ONE END PORTION OF SAID SEAL MEMBER NORMALLY CONTACTING SAID VALVE WORKING SURFACE, A RECESS FORMED IN SAID ONE END OF THE SEAL MEMBER, SAID RECESS BEING DEFINED BY OUTER AND INNER SIDES AND A BOTTOM SURFACE, SAID SEAL MEMBER HAVING CONCENTRIC ANNULAR PORTIONS FORMED INTEGRAL THEREWITH AND LOCATED AT THE INNER AND OUTER SIDES OF SAID RECESS AND FORMING SAID END PORTION OF THE ANNULAR SEAL MEMBER, AND AN INSERT OF SOFTER RESILIENT NON-METALLIC MATERIAL OF DUROMETER
References Cited (Backward Citations)
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US2815187A
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US2905197A
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US2985422A
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US3033517A
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US3132837A
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US3131906A
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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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |