Patent US3276471A successfully refreshed from Google Patents.
US3276471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shut-off valve
Assignee: Individual
•
Filing: 1963-06-17
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Granted: 1966-10-04
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Walter W Hagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:26
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/0446; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7898
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A SHUT-OFF VALVE COMPRISING A FLUID SUPPLY CONDUIT HAVING AN ENLARGED SOCKET PORTION AND A SEALING FACE AT ONE END THEREOF, AN EXHAUST CONDUIT ATTACHED TO SAID SOCKET PORTION, A CARRIER CONDUIT SLIDABLE WITHIN SAID EXHAUST CONDUIT, A VALVE DISC PIVOTALLY MOUNTED WITHIN SAID CARRIER CONDUIT AND NORMALLY IN A CLOSED POSITION ENGAGING SAID SEALING FACE, SAID CARRIER CONDUIT BEING MOVABLE BY AN INCREASE IN FLUID PRESSURE WITHIN SAID FLUID SUPPLY CONDUIT TO DISENGAGE SAID VALVE PLATE FROM SAID SEALING FACE, AND CAM MEANS WITHIN SAID SOCKET AND ATTACHED TO SAID VALVE DISK AND SAID CARRIER CONDUIT FOR PIVOTING SAID VALVE DISK TO OPEN POSITION UPON MOVEMENT OF SAID CARRIER CONDUIT WHEREBY THE INCREASE IN FLUID PRESSURE WITHIN SAID FLUID SUPPLY CONDUIT WILL BE RELIEVED.
Claim 2
Dependent Claim
125 words
A SHUT-OFF VALVE COMPRISING A FLUID SUPPLY CONDUIT HAVING AN ENLARGED SOCKET PORTION AND A SEALING FACE AT ONE END THEREOF, AN EXHAUST CONDUIT ATTACHED TO SAID SOCKET PORTION, A CARRIER CONDUIT SLIDABLE WITHIN SAID EXHAUST CONDUIT, A VALVE DISC PIVOTALLY MOUNTED WITHIN SAID CARRIER CONDUIT AND NORMALLY IN A CLOSED POSITION ENGAGING SAID SEALING FACE, SAID CARRIER CONDUIT BEING MOVABLE BY AN INCREASE IN FLUID PRESSURE WITHIN SAID FLUID SUPPLY CONDUIT TO DISENGAGE SAID VALVE PLATE FROM SAID SEALING FACE, AND CAM MEANS WITHIN SAID SOCKET AND ATTACHED TO SAID VALVE DISK AND SAID CARRIER CONDUIT FOR PIVOTING SAID VALVE DISK TO OPEN POSITION UPON MOVEMENT OF SAID CARRIER CONDUIT WHEREBY THE INCREASE IN FLUID PRESSURE WITHIN SAID FLUID SUPPLY CONDUIT WILL BE RELIEVED.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |