US3071153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves
Assignee: Stewart Warner Corp
•
Filing: 1959-07-17
•
Granted: 1963-01-01
•
Expires: 1979-07-17
Abstract
No abstract record available.
Inventors
- 👤 Richard T Cornelius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:28
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/46; F16K15/00; F16K15/18; F16K15/182; F16K17/00; F16K17/02; F16K17/04; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7866; Y10T137/7867; Y10T137/7868; Y10T137/7876; Y10T137/7877
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A RELIEF VALVE FOR A PRESSURE VESSEL, COMPRISING IN COMBINATION, A TUBULAR BODY HAVING AN INTERNAL TAPERED VALVE SEAT TERMINATING AT A CENTRAL INLET OPENING ADAPTED TO COMMUNICATE WITH THE PRESSURE VESSEL, A VALVE MEMBER GUIDED BY MEANS INCLUDING THE TUBULAR BODY TO MOVE TOWARD AND AWAY FROM THE INLET OPENING, THE END OF THE VALVE MEMBER ADJACENT THE VALVE SEAT HAVING A HEAD INCLUDING AN EXTERNAL TAPERED SURFACE OF MORE ACUTE ANGLE THAN SAID VALVE SEAT, SAID HEAD HAVING A SOCKET OPEN TO THE INLET OPENING DEFINED RADIALLY AT ITS EDGE PROXIMATE THE VALVE SEAT BY A SHARP-CORNERED ANNULAR RIM DISPOSED ON SAID EXTERNAL SURFACE AND ADAPTED IN THE VALVE CLOSED POSITION TO SEAT ON THE VALVE SEAT ON AN ANNULAR SUBSTANTIALLY LINE CONTACT, AND A RESILIENT SEALING MEMBER SNUGLY RE-
Claim 2
Dependent Claim
132 words
A RELIEF VALVE FOR A PRESSURE VESSEL, COMPRISING IN COMBINATION, A TUBULAR BODY HAVING AN INTERNAL TAPERED VALVE SEAT TERMINATING AT A CENTRAL INLET OPENING ADAPTED TO COMMUNICATE WITH THE PRESSURE VESSEL, A VALVE MEMBER GUIDED BY MEANS INCLUDING THE TUBULAR BODY TO MOVE TOWARD AND AWAY FROM THE INLET OPENING, THE END OF THE VALVE MEMBER ADJACENT THE VALVE SEAT HAVING A HEAD INCLUDING AN EXTERNAL TAPERED SURFACE OF MORE ACUTE ANGLE THAN SAID VALVE SEAT, SAID HEAD HAVING A SOCKET OPEN TO THE INLET OPENING DEFINED RADIALLY AT ITS EDGE PROXIMATE THE VALVE SEAT BY A SHARP-CORNERED ANNULAR RIM DISPOSED ON SAID EXTERNAL SURFACE AND ADAPTED IN THE VALVE CLOSED POSITION TO SEAT ON THE VALVE SEAT ON AN ANNULAR SUBSTANTIALLY LINE CONTACT, AND A RESILIENT SEALING MEMBER SNUGLY RE-
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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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |