US3164365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm sealed valve
Assignee: Taco Inc
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Filing: 1962-06-22
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Granted: 1965-01-05
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Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 John H White
- 👤 William B Drury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:55
CPC Classifications
F; F16; F16K; F16K41/00; F16K41/10; F16K41/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN A POPPET VALVE HAVING A VALVE STEM AND A SLEEVE OF SUBSTANTIALLY GREATER DIAMETER TO RECEIVE THE STEM, A SEAL FOR THE STEM INCLUDING A FLEXIBLE DIAPHRAGM SEALING THE SLEEVE AND STEM, AN ANNULAR FLEXIBLE SEAL MEMBER IN THE GENERAL SHAPE OF A WASHER FRICTIONALLY RECEIVED IN THE SLEEVE ABOUT THE STEM AND HAVING A LOOSE FIT ON THE STEM, AND A PLUG MEMBER HAVING AN ANNULAR SURFACE ON THE STEM IN THE SPACE BETWEEN THE DIAPHRAGM AND SEAL MEMBER, THE SEAL MEMBER BEING DIMENSIONED SO AS TO PROVIDE A LEAKAGE PATH FOR LIMITED FLUID FLOW TO AND FROM SAID SPACE WHEN THE DIAPHRAGM IS INTACT AND TO SEAT AGAINST SAID SURFACE TO SEAL THE SLEEVE WHEN THE DIAPHRAGM IS RUPTURED.
Claim 2
Dependent Claim
122 words
IN A POPPET VALVE HAVING A VALVE STEM AND A SLEEVE OF SUBSTANTIALLY GREATER DIAMETER TO RECEIVE THE STEM, A SEAL FOR THE STEM INCLUDING A FLEXIBLE DIAPHRAGM SEALING THE SLEEVE AND STEM, AN ANNULAR FLEXIBLE SEAL MEMBER IN THE GENERAL SHAPE OF A WASHER FRICTIONALLY RECEIVED IN THE SLEEVE ABOUT THE STEM AND HAVING A LOOSE FIT ON THE STEM, AND A PLUG MEMBER HAVING AN ANNULAR SURFACE ON THE STEM IN THE SPACE BETWEEN THE DIAPHRAGM AND SEAL MEMBER, THE SEAL MEMBER BEING DIMENSIONED SO AS TO PROVIDE A LEAKAGE PATH FOR LIMITED FLUID FLOW TO AND FROM SAID SPACE WHEN THE DIAPHRAGM IS INTACT AND TO SEAT AGAINST SAID SURFACE TO SEAL THE SLEEVE WHEN THE DIAPHRAGM IS RUPTURED.
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) | 1968-01-05 | 1968-07-06 | 1969-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-05 | 1972-07-06 | 1973-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-05 | 1976-07-06 | 1977-01-05 | $7700.00 | Window Closed / Lapsed |