US3123092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure relief valve
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:51
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/42; F22B37/44; F22B37/446; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K17/00; F16K17/02; F16K17/04; F16K17/0486; F16K2200/00; F16K2200/20; F16K2200/202; F16K2200/30; F16K2200/302; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7738; Y10T137/7837; Y10T137/7876; Y10T137/7904; Y10T137/7922; Y10T137/7923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
211 words
A PRESSURE RELIEF VALVE FOR BOILERS OR THE LIKE COMPRISING A VALVE HOUSING HAVING A LIQUID INLET, AN OUTLET, AND A MAIN VALVE SEAT BETWEEN SAID LIQUID INLET AND SAID OUTLET, A SPRING HOUSING MOUNTED ON SAID VALVE HOUSING, RIGID PLATE MEANS EXTENDING BETWEEN AND SEPARATING SAID VALVE AND SPRING HOUSINGS FROM EACH OTHER, AN OPENING IN SAID PLATE MEANS, A PLATE VALVE SEAT SURROUNDING SAID OPENING, A MAIN VALVE ASSEMBLY IN SAID HOUSING COMPRISING A STEM MEMBER, A HUDDLING MEMBER MOUNTED ON SAID STEM MEMBER AND HAVING A CLOSED END AND AN OPEN END SURROUNDED BY AN ANNULAR FLANGE DEPENDING FROM SAID CLOSED END, A MAIN VALVE WITHIN SAID HUDDLING MEMBER FOR SEATING ON SAID MAIN VALVE SEAT, AND A PLATE VALVE AT SAID CLOSED END OF SAID HUDDLING MEMBER FOR SEATING ON SAID PLATE VALVE SEAT, SAID PLATE VALVE AND SAID PLATE VALVE SEAT BEING SUBSTANTIALLY OF THE SAME DIAMETER AS THE CLOSED END OF SAID HUDDLING MEMBER, SAID VALVE HOUSING UPON CONNECTION OF SAID INLET AND SAID OUTLET THROUGH SAID MAIN VALVE SEAT AT PREDETERMINED PRESSURE AND TEMPERATURE CONDITIONS OF LIQUID AT SAID INLET FOR CONVERTING THE LIQUID TO A GASEOUS MEDIUM PROVIDING FOR EXPANSION OF THE GASEOUS MEDIUM TO EFFECT A BACK PRESSURE CONDITION IN SAID VALVE
Claim 2
Dependent Claim
211 words
A PRESSURE RELIEF VALVE FOR BOILERS OR THE LIKE COMPRISING A VALVE HOUSING HAVING A LIQUID INLET, AN OUTLET, AND A MAIN VALVE SEAT BETWEEN SAID LIQUID INLET AND SAID OUTLET, A SPRING HOUSING MOUNTED ON SAID VALVE HOUSING, RIGID PLATE MEANS EXTENDING BETWEEN AND SEPARATING SAID VALVE AND SPRING HOUSINGS FROM EACH OTHER, AN OPENING IN SAID PLATE MEANS, A PLATE VALVE SEAT SURROUNDING SAID OPENING, A MAIN VALVE ASSEMBLY IN SAID HOUSING COMPRISING A STEM MEMBER, A HUDDLING MEMBER MOUNTED ON SAID STEM MEMBER AND HAVING A CLOSED END AND AN OPEN END SURROUNDED BY AN ANNULAR FLANGE DEPENDING FROM SAID CLOSED END, A MAIN VALVE WITHIN SAID HUDDLING MEMBER FOR SEATING ON SAID MAIN VALVE SEAT, AND A PLATE VALVE AT SAID CLOSED END OF SAID HUDDLING MEMBER FOR SEATING ON SAID PLATE VALVE SEAT, SAID PLATE VALVE AND SAID PLATE VALVE SEAT BEING SUBSTANTIALLY OF THE SAME DIAMETER AS THE CLOSED END OF SAID HUDDLING MEMBER, SAID VALVE HOUSING UPON CONNECTION OF SAID INLET AND SAID OUTLET THROUGH SAID MAIN VALVE SEAT AT PREDETERMINED PRESSURE AND TEMPERATURE CONDITIONS OF LIQUID AT SAID INLET FOR CONVERTING THE LIQUID TO A GASEOUS MEDIUM PROVIDING FOR EXPANSION OF THE GASEOUS MEDIUM TO EFFECT A BACK PRESSURE CONDITION IN SAID VALVE
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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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |