US3150683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm operated pressure retaining valve
Assignee: Puritan Compressed Gas Corp
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Filing: 1963-05-31
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Granted: 1964-09-29
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Expires: 1983-05-31
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Carolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:13
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/18; F16K17/19; G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/0611; G05D16/0613; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7837; Y10T137/7847; Y10T137/7849; Y10T137/7866; Y10T137/7879; Y10T137/7888; Y10T137/789
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
CONTROL APPARATUS FOR RETAINING A FLUID AT A SELECTED PRESSURE IN FLUID-RECEIVING STRUCTURE, SAID APPARATUS COMPRISING: A HOUSING ADAPTED TO BE SECURED TO SAID STRUCTURE AND HAVING A FLUID PASSAGE THERETHROUGH COMMUNICATING WITH THE STRUCTURE; A FLEXIBLE MEMBER CARRIED BY THE HOUSING IN NORMAL FLUID BLOCKING RELATIONSHIP TO THE PASSAGE; AND AN ELONGATED ELEMENT IN THE PASSAGE, THE MEMBER HAVING AN OPENING THERETHROUGH RECEIVING THE ELEMENT, THE EDGE OF THE MEMBER DEFINING THE OPENING NORMALLY IN FLUID-SEALING DISPOSITION AROUND THE OUTER SURFACE OF THE ELEMENT, SAID MEMBER BEING STRETCHABLE UNDER FLUID PRESSURE TO SHIFT SAID EDGE INTO A DEFLECTED LOCATION TO PERMIT FLOW OF FLUID THROUGH THE PASSAGE WHEN THE DIFFERENCE IN FLUID PRESSURE ON OPPOSITE SIDES OF THE MEMBER EXCEEDS SAID SELECTED PRESSURE; AND A CIRCUMFERENTIALLY EXTENDING ENLARGEMENT ON THE ELEMENT AND DISPOSED TO BE ENGAGED BY SAID EDGE FOR CLOSING SAID OPENING TO STOP THE FLOW OF FLUID WHEN SAID PRESSURE DIFFERENCE REACHES A PREDETERMINED AMOUNT.
Claim 2
Dependent Claim
158 words
CONTROL APPARATUS FOR RETAINING A FLUID AT A SELECTED PRESSURE IN FLUID-RECEIVING STRUCTURE, SAID APPARATUS COMPRISING: A HOUSING ADAPTED TO BE SECURED TO SAID STRUCTURE AND HAVING A FLUID PASSAGE THERETHROUGH COMMUNICATING WITH THE STRUCTURE; A FLEXIBLE MEMBER CARRIED BY THE HOUSING IN NORMAL FLUID BLOCKING RELATIONSHIP TO THE PASSAGE; AND AN ELONGATED ELEMENT IN THE PASSAGE, THE MEMBER HAVING AN OPENING THERETHROUGH RECEIVING THE ELEMENT, THE EDGE OF THE MEMBER DEFINING THE OPENING NORMALLY IN FLUID-SEALING DISPOSITION AROUND THE OUTER SURFACE OF THE ELEMENT, SAID MEMBER BEING STRETCHABLE UNDER FLUID PRESSURE TO SHIFT SAID EDGE INTO A DEFLECTED LOCATION TO PERMIT FLOW OF FLUID THROUGH THE PASSAGE WHEN THE DIFFERENCE IN FLUID PRESSURE ON OPPOSITE SIDES OF THE MEMBER EXCEEDS SAID SELECTED PRESSURE; AND A CIRCUMFERENTIALLY EXTENDING ENLARGEMENT ON THE ELEMENT AND DISPOSED TO BE ENGAGED BY SAID EDGE FOR CLOSING SAID OPENING TO STOP THE FLOW OF FLUID WHEN SAID PRESSURE DIFFERENCE REACHES A PREDETERMINED AMOUNT.
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) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |