US3074425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap acting safety valve
Assignee: Individual
•
Filing: 1959-03-20
•
Granted: 1963-01-22
•
Expires: 1979-03-20
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Kikendall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:12
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/08; F16K17/082; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7738; Y10T137/7744; Y10T137/7745; Y10T137/7746
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A VALVE, THE COMBINATION OF A HOUSING HAVING AN INLET PORT, A VALVE SEAT, AN OUTLET PORT, A CYLINDRICAL POPPET GUIDE, AND AN ANNULAR GROOVE AROUND SAID SEAT, WITH SAID POPPET GUIDE POSITIONED ABOUT SAID SEAT AND GROOVE AND HAVING AT LEAST ONE OUTLET PORT SUBSTANTIALLY IN LATERAL ALIGNMENT WITH SAID SEAT FOR PERMITTING FLUID FLOW THROUGH THE VALVE; A POPPET SLIDABLY CARRIED IN SAID POPPET GUIDE FOR MOVEMENT TOWARD AND AWAY FROM SAID SEAT, SAID POPPET INCLUDING A CYLINDRICAL SLEEVE SLIDINGLY ENGAGING SAID GUIDE AND PROJECTING INTO SAID GROOVE FOR AT LEAST PARTIALLY BLOCKING SAID GUIDE OUTLET PORT WHEN SAID POPPET ENGAGES SAID SEAT; AND MEANS FOR URGING SAID POPPET INTO ENGAGEMENT WITH SAID SEAT TO BLOCK FLUID FLOW THROUGH THE VALVE, SAID POPPET HAVING A WORKING AREA EXPOSED TO THE INLET FLUID PRESSURE FOR URGING SAID POPPET OUT OF ENGAGEMENT WITH SAID SEAT.
Claim 2
Dependent Claim
146 words
IN A VALVE, THE COMBINATION OF A HOUSING HAVING AN INLET PORT, A VALVE SEAT, AN OUTLET PORT, A CYLINDRICAL POPPET GUIDE, AND AN ANNULAR GROOVE AROUND SAID SEAT, WITH SAID POPPET GUIDE POSITIONED ABOUT SAID SEAT AND GROOVE AND HAVING AT LEAST ONE OUTLET PORT SUBSTANTIALLY IN LATERAL ALIGNMENT WITH SAID SEAT FOR PERMITTING FLUID FLOW THROUGH THE VALVE; A POPPET SLIDABLY CARRIED IN SAID POPPET GUIDE FOR MOVEMENT TOWARD AND AWAY FROM SAID SEAT, SAID POPPET INCLUDING A CYLINDRICAL SLEEVE SLIDINGLY ENGAGING SAID GUIDE AND PROJECTING INTO SAID GROOVE FOR AT LEAST PARTIALLY BLOCKING SAID GUIDE OUTLET PORT WHEN SAID POPPET ENGAGES SAID SEAT; AND MEANS FOR URGING SAID POPPET INTO ENGAGEMENT WITH SAID SEAT TO BLOCK FLUID FLOW THROUGH THE VALVE, SAID POPPET HAVING A WORKING AREA EXPOSED TO THE INLET FLUID PRESSURE FOR URGING SAID POPPET OUT OF ENGAGEMENT WITH SAID SEAT.
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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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |