US3173647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid valve having pressure responsive bonnet seals
Assignee: Grove Valve and Regulator Co
•
Filing: 1961-04-21
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Granted: 1965-03-16
•
Expires: 1981-04-21
Abstract
No abstract record available.
Inventors
- 👤 Austin U Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:25
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0663; F16K5/0694; F16K5/0647; F16K5/0673
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A STRUCTURE OF THE ROTATABLE VALUE TYPE COMPRISING: AN OUTER BODY MEMBER HAVING INLET AND OUTLET OPENINGS, AN INNER MEMBER ROTATABLE IN SAID BODY MEMBER AND HAVING SURFACES THEREON ALIGNABLE WITH SAID INLET AND SAID OUTLET OPENINGS, A FLAT CIRCULAR SEALING SURFACE ONONE OF SAID OUTER AND INNER MEMBERS, AN OUTER CYLINDRICAL SEALING SURFACE ON THE OTHER OF SAID OUTER AND INNER MEMBERS, SAID SEALING SURFACES BEING CONCENRIC WITH THE AXIS OF ROTATION OF SAID INNER MEMBER, AN ANNULAR SEAT RING HAVING AN ANNULAR WORKING FACE AND A CYLINDRICAL WORKING FACE IN COOPERATIVE ASSOCIATION WITH SAID CIRCULAR AND CYLINDRICAL SEALING SURFACES, RESPECTIVELY, A CIRCULAR RECESS IN EACH OF SAID ANNULAR AND CYLINDRICAL WORKING FACES, RESILIENT SEAL RINGS DISPOSED IN SAID RECESSES IN SEALING ENGAGEMENT WITH SAID CYLINDRICAL AND FLAT CIRCULAR SEALING SURFACE,
Claim 2
Dependent Claim
132 words
A STRUCTURE OF THE ROTATABLE VALUE TYPE COMPRISING: AN OUTER BODY MEMBER HAVING INLET AND OUTLET OPENINGS, AN INNER MEMBER ROTATABLE IN SAID BODY MEMBER AND HAVING SURFACES THEREON ALIGNABLE WITH SAID INLET AND SAID OUTLET OPENINGS, A FLAT CIRCULAR SEALING SURFACE ONONE OF SAID OUTER AND INNER MEMBERS, AN OUTER CYLINDRICAL SEALING SURFACE ON THE OTHER OF SAID OUTER AND INNER MEMBERS, SAID SEALING SURFACES BEING CONCENRIC WITH THE AXIS OF ROTATION OF SAID INNER MEMBER, AN ANNULAR SEAT RING HAVING AN ANNULAR WORKING FACE AND A CYLINDRICAL WORKING FACE IN COOPERATIVE ASSOCIATION WITH SAID CIRCULAR AND CYLINDRICAL SEALING SURFACES, RESPECTIVELY, A CIRCULAR RECESS IN EACH OF SAID ANNULAR AND CYLINDRICAL WORKING FACES, RESILIENT SEAL RINGS DISPOSED IN SAID RECESSES IN SEALING ENGAGEMENT WITH SAID CYLINDRICAL AND FLAT CIRCULAR SEALING SURFACE,
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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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |