US3079125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve closure means
Assignee: Union Tank Car Co
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Filing: 1961-07-25
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Granted: 1963-02-26
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Expires: 1981-07-25
Abstract
No abstract record available.
Inventors
- 👤 Edward J Tischler
- 👤 Thomas J Schoenecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:07
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6991; Y10T137/6995; Y10T137/701; Y10T137/7287; Y10T137/7303
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
VALVE CLOSURE MEANS ADAPTED TO CLOSE AGAINST A RADIALLY EXTENDING ANNULAR SEAT SURROUNDING A FLOW PASSAGE COMPRISING, AN ANNULAR BODY OF RESILIENT COMPRESSIBLE MATERIAL HAVING A PERIPHERAL ANNULAR RIDGE PROJECTING FROM A SEAT CONTACT FACE OF SAID BODY FOR SEALING CONTACT WITH AN ANNULAR ZONE OF SAID SEAT WHICH IS RADIALLY OUTWARDLY SPACED FROM SAID PASSAGE, A SECOND AND OPPOSITELY DISPOSED FACE OF SAID ANNULAR BODY HAVING A PROJECTING CENTRAL PORTION AND A SUBSTANTIALLY CONICAL SURFACE EXTENDING RADIALLY AND OBLIQUELY FROM SAID CENTRAL PORTION TOWARD THE PLANE OF SAID SEAT CONTACT FACE OF SAID BODY, A COMPRESSIBLE WASHER OF DIAMETER NOT SUBSTANTIALLY LESS THAN THE DIAMETER OF SAID ANNULAR BODY OVERLYING SAID RELATIVELY THICK CENTRAL PORTION OF SAID BODY IN NORMALLY SPACED RELATION TO SAID SUBSTANTIALLY CONICAL SURFACE, AND MEANS FOR GUIDING SAID BODY FOR MOVEMENT TO AND FROM SAID SEAT, SAID RESILIENT BODY BEING SUFFICIENTLY FLEXIBLE AND COMPRESSIBLE TO BE DEFORMED TO CONTACT SUBSTANTIALLY THE ENTIRE RADIALLY EXTENDING SURFACE OF SAID SEAT BY PRESSURE APPLIED TO SAID SECOND FACE AND WASHER.
Claim 2
Dependent Claim
172 words
VALVE CLOSURE MEANS ADAPTED TO CLOSE AGAINST A RADIALLY EXTENDING ANNULAR SEAT SURROUNDING A FLOW PASSAGE COMPRISING, AN ANNULAR BODY OF RESILIENT COMPRESSIBLE MATERIAL HAVING A PERIPHERAL ANNULAR RIDGE PROJECTING FROM A SEAT CONTACT FACE OF SAID BODY FOR SEALING CONTACT WITH AN ANNULAR ZONE OF SAID SEAT WHICH IS RADIALLY OUTWARDLY SPACED FROM SAID PASSAGE, A SECOND AND OPPOSITELY DISPOSED FACE OF SAID ANNULAR BODY HAVING A PROJECTING CENTRAL PORTION AND A SUBSTANTIALLY CONICAL SURFACE EXTENDING RADIALLY AND OBLIQUELY FROM SAID CENTRAL PORTION TOWARD THE PLANE OF SAID SEAT CONTACT FACE OF SAID BODY, A COMPRESSIBLE WASHER OF DIAMETER NOT SUBSTANTIALLY LESS THAN THE DIAMETER OF SAID ANNULAR BODY OVERLYING SAID RELATIVELY THICK CENTRAL PORTION OF SAID BODY IN NORMALLY SPACED RELATION TO SAID SUBSTANTIALLY CONICAL SURFACE, AND MEANS FOR GUIDING SAID BODY FOR MOVEMENT TO AND FROM SAID SEAT, SAID RESILIENT BODY BEING SUFFICIENTLY FLEXIBLE AND COMPRESSIBLE TO BE DEFORMED TO CONTACT SUBSTANTIALLY THE ENTIRE RADIALLY EXTENDING SURFACE OF SAID SEAT BY PRESSURE APPLIED TO SAID SECOND FACE AND WASHER.
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |