Patent US3260496A successfully refreshed from Google Patents.
US3260496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal responsive high pressure butterfly valve seal means
Assignee: B H HADLEY Inc
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Filing: 1963-09-16
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Granted: 1966-07-12
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Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 Walter O Borcherdt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:19
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/16; F16K31/163; F16K31/1635; F16K1/00; F16K1/16; F16K1/18; F16K1/22; F16K1/226; F16K1/2263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A SEAL MEANS FOR A VALVE MEANS INCLUDING A STATIONARY VALVE BODY HAVING A PASSAGEWAY FOR FLUID AND A MOVABLE VALVE MEMBER ADAPTED TO CLOSE SAID PASSAGEWAY, COMPRISING: RECESS MEANS IN THE VALVE BODY OPENING TOWARD SAID PASSAGEWAY; A SEALING RING MEMBER HAVING L-SHAPED CROSS SECTION PROVIDING A RADIALLY INWARDLY DIRECTED SEALING PORTION EXTENDING INTO SAID PASSAGEWAY AND AN ANNULAR SUPPORT PORTION FOR SAID SEALING PORTION, SAID SUPPORT AND SEALING PORTIONS BEING RADIALLY INWARDLY MOVABLE, AND SPRING MEANS CARRIED BY SAID VALVE BODY FOR APPLYING RADIALLY INWARDLY DIRECTED PRESSURE TO SAID SUPPORT PORTION ABOVE SAID SEALING PORTION FOR URGING SAID SEALING PORTION TOWARD SAID PASSAGEWAY, SAID SPRING MEANS COMPRISING A METAL RESPONSIVE TO TEMPERATURE DECREASES FOR THERMALLY AUGMENTING SELECTED SEALING PRESSURE.
Claim 2
Dependent Claim
121 words
A SEAL MEANS FOR A VALVE MEANS INCLUDING A STATIONARY VALVE BODY HAVING A PASSAGEWAY FOR FLUID AND A MOVABLE VALVE MEMBER ADAPTED TO CLOSE SAID PASSAGEWAY, COMPRISING: RECESS MEANS IN THE VALVE BODY OPENING TOWARD SAID PASSAGEWAY; A SEALING RING MEMBER HAVING L-SHAPED CROSS SECTION PROVIDING A RADIALLY INWARDLY DIRECTED SEALING PORTION EXTENDING INTO SAID PASSAGEWAY AND AN ANNULAR SUPPORT PORTION FOR SAID SEALING PORTION, SAID SUPPORT AND SEALING PORTIONS BEING RADIALLY INWARDLY MOVABLE, AND SPRING MEANS CARRIED BY SAID VALVE BODY FOR APPLYING RADIALLY INWARDLY DIRECTED PRESSURE TO SAID SUPPORT PORTION ABOVE SAID SEALING PORTION FOR URGING SAID SEALING PORTION TOWARD SAID PASSAGEWAY, SAID SPRING MEANS COMPRISING A METAL RESPONSIVE TO TEMPERATURE DECREASES FOR THERMALLY AUGMENTING SELECTED SEALING PRESSURE.
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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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |