US3154940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well tool with pressure responsive valve
Assignee: Individual
•
Filing: 1962-06-12
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Granted: 1964-11-03
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Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Glenn L Loomis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:18
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/08; F; F16; F16K; F16K15/00; F16K15/14; F16K15/1401; F16K15/144; F16K15/145; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7842; Y10T137/7879; Y10T137/7888; Y10T137/7889
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A PRESSURE RESPONSIVE VALVE MECHANISM COMPRISING A BODY MEMBER HAVING A BORE THEREIN AND A FLOW PASSAGE FOR FLUID UNDER PRESSURE, SAID BORE HAVING AT LEAST TWO ENDS WITH AT LEAST ONE OF THE ENDS OPEN, SAID FLOW PASSAGE EXTENDING IN SAID BODY MEMBER TRANSVERSELY OF SAID BORE AND OPENING TO SAID BORE INTERMEDIATE THE ENDS OF SAID BORE, SAID BORE HAVING WALLS ON EACH SIDE OF THE OPENING OF SAID PASSAGE THERETO DEFINING SPACED ANNULAR VALVE SEATS, A CYLINDRICALLY SHAPED VALVE ELEMENT CARRIED IN SAID BORE WITH ITS ENDS SUPPORTED IN SEALING ENGAGEMENT IN SAID SPACED ANNULAR VALVE SEATS, SAID CYLINDRICALLY SHAPED VALVE ELEMENT BEING MADE FROM A RESILIENT MATERIAL HAVING AN ELASTIC MEMORY WHEREBY A PREDETERMINED PRESSURE OF FLUID IN SAID FLOW PASSAGE DEFORMS THE VALVE ELEMENT OFF OF AT LEAST ONE OF SAID VALVE SEATS AND PERMITS FLOW FROM SAID PASSAGE BETWEEN SAID VALVE ELEMENT AND THE VALVE SEAT OUTWARDLY OF SAID BORE.
Claim 2
Dependent Claim
156 words
A PRESSURE RESPONSIVE VALVE MECHANISM COMPRISING A BODY MEMBER HAVING A BORE THEREIN AND A FLOW PASSAGE FOR FLUID UNDER PRESSURE, SAID BORE HAVING AT LEAST TWO ENDS WITH AT LEAST ONE OF THE ENDS OPEN, SAID FLOW PASSAGE EXTENDING IN SAID BODY MEMBER TRANSVERSELY OF SAID BORE AND OPENING TO SAID BORE INTERMEDIATE THE ENDS OF SAID BORE, SAID BORE HAVING WALLS ON EACH SIDE OF THE OPENING OF SAID PASSAGE THERETO DEFINING SPACED ANNULAR VALVE SEATS, A CYLINDRICALLY SHAPED VALVE ELEMENT CARRIED IN SAID BORE WITH ITS ENDS SUPPORTED IN SEALING ENGAGEMENT IN SAID SPACED ANNULAR VALVE SEATS, SAID CYLINDRICALLY SHAPED VALVE ELEMENT BEING MADE FROM A RESILIENT MATERIAL HAVING AN ELASTIC MEMORY WHEREBY A PREDETERMINED PRESSURE OF FLUID IN SAID FLOW PASSAGE DEFORMS THE VALVE ELEMENT OFF OF AT LEAST ONE OF SAID VALVE SEATS AND PERMITS FLOW FROM SAID PASSAGE BETWEEN SAID VALVE ELEMENT AND THE VALVE SEAT OUTWARDLY OF SAID BORE.
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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |