Patent US3357677A successfully refreshed from Google Patents.
US3357677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve with detent lock
Assignee: Crawford Fitting Co
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Filing: 1964-03-20
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Granted: 1967-12-12
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Expires: 1984-03-20
Abstract
No abstract record available.
Inventors
- 👤 Tasker Jonathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:52
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A POSITIVE ACTING ON-OFF VALVE COMPRISING BODY MEANS HAVING AN INLET PORT AND AN OUTLET PORT COMMUNICATED BY A FLOW PASSAGE, A WALL PORTION OF SAID BODY MEANS DEFINING AN ELONGATED CYLINDRICAL VALVE SEAT PORTION IN SAID FLOW PASSAGE, BORE MEANS IN SAID BODY MEANS INTERSECTING SAID FLOW PASSAGE ADJACENT SAID VALVE SEAT AT A FIRST END OF SAID BORE MEANS, ELONGATED STEM MEANS SLIDABLY MOUNTED IN SAID BORE MEANS AND SAID FLOW PASSAGE WITH AN END OF SAID STEM MEANS PROJECTING FROM A SECOND END OF SAID BORE MEANS TO RECEIVE FORCES FOR MOVING SAID STEM MEANS TO OPEN AND CLOSED POSITIONS, FIRST SEALING MEANS SLIDABLY SEALING SAID STEM MEANS AND SAID VALVE SEAT WHEN SAID STEM MEANS IS IN SAID CLOSED POSITION AND PERMITTING FLOW THROUGH SAID FLOW PASSAGE BETWEEN SAID STEM MEANS AND SAID VALVE SEAT WHEN SAID STEM MEANS IS IN SAID OPEN POSITION, SECOND SEALING MEANS SLIDABLY SEALING SAID STEM MEANS AND SAID BORE MEANS, DETENT MEANS FOR SELECTIVELY LOCKING SAID STEM MEANS IN CLOSED POSITION AND A SLEEVE MEANS SLIDABLY MOUNTED ON SAID BODY MEANS TO INTERACT WITH SAID DETENT MEANS TO ALTERNATELY RELEASE AND LOCK SAID DETENT MEANS.
Claim 2
Dependent Claim
195 words
A POSITIVE ACTING ON-OFF VALVE COMPRISING BODY MEANS HAVING AN INLET PORT AND AN OUTLET PORT COMMUNICATED BY A FLOW PASSAGE, A WALL PORTION OF SAID BODY MEANS DEFINING AN ELONGATED CYLINDRICAL VALVE SEAT PORTION IN SAID FLOW PASSAGE, BORE MEANS IN SAID BODY MEANS INTERSECTING SAID FLOW PASSAGE ADJACENT SAID VALVE SEAT AT A FIRST END OF SAID BORE MEANS, ELONGATED STEM MEANS SLIDABLY MOUNTED IN SAID BORE MEANS AND SAID FLOW PASSAGE WITH AN END OF SAID STEM MEANS PROJECTING FROM A SECOND END OF SAID BORE MEANS TO RECEIVE FORCES FOR MOVING SAID STEM MEANS TO OPEN AND CLOSED POSITIONS, FIRST SEALING MEANS SLIDABLY SEALING SAID STEM MEANS AND SAID VALVE SEAT WHEN SAID STEM MEANS IS IN SAID CLOSED POSITION AND PERMITTING FLOW THROUGH SAID FLOW PASSAGE BETWEEN SAID STEM MEANS AND SAID VALVE SEAT WHEN SAID STEM MEANS IS IN SAID OPEN POSITION, SECOND SEALING MEANS SLIDABLY SEALING SAID STEM MEANS AND SAID BORE MEANS, DETENT MEANS FOR SELECTIVELY LOCKING SAID STEM MEANS IN CLOSED POSITION AND A SLEEVE MEANS SLIDABLY MOUNTED ON SAID BODY MEANS TO INTERACT WITH SAID DETENT MEANS TO ALTERNATELY RELEASE AND LOCK SAID DETENT MEANS.
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |