US3095903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Stewart Warner Corp
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Filing: 1960-05-05
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Granted: 1963-07-02
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Expires: 1980-05-05
Abstract
No abstract record available.
Inventors
- 👤 William G Jennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:48
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/53; F16K31/54; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/86702; Y10T137/86839; Y10T137/86879
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A VALVE, COMPRISING A VALVE BODY HAVING AN ELONGATED BORE, ABUTMENTS AT OPPOSITE ENDS OF THE BORE, A PISTON MATABLY DISPOSED IN THE BORE AND HAVING A THROUGHBORE TERMINATING AT OPPOSED END SURFACES OF EQUAL AREAS PROJECTED NORMAL TO THE LONGITUDINAL AXIS OF THE BORE, SAID PISTON BEING AXIALLY TRANSLATABLE WITHIN THE BORE BETWEEN TWO EXTREME POSITIONS WHEREAT A PORTION OF THE END SURFACE OF SAID PISTON IS IN CONTACT WITH ITS ADJACENT ABUTMENT, EACH ABUTMENT AND END SURFACE CONSTITUTED AND ARRANGED IN SAID EXTREME POSITIONS TO DEFINE WITH SAID BORE AN ANNULAR CAVITY, MEANS FOR PROVIDING FLUID COMMUNICATION BETWEEN EACH DEFINED ANNULAR CAVITY AND THE THROUGHBORE OF THE PISTON, SAID VALVE BODY HAVING A FLUID INLET COMMUNICATING WITH THE BORE AND THETHROUGH-BORE, SAID VALVE BODY ALSO HAVING A PAIR OF AXIALLY SPACED FLUID OUTLETS COMMUNICATING WITH THE BORE BETWEEN THE ABUTMENTS, EACH OF SAID OUTLETS BEING SPACED FROM ITS ADJACENT ABUTMENT AND ITS REMOTE ABUTMENT RESPECTIVELY, A DISTANCE LESS THAN AND GREATER THAN THE LENGTH OF THE PISTON, AND MEANS FOR TRANSLATING THE PISTON WITHIN THE BORE.
Claim 2
Dependent Claim
178 words
A VALVE, COMPRISING A VALVE BODY HAVING AN ELONGATED BORE, ABUTMENTS AT OPPOSITE ENDS OF THE BORE, A PISTON MATABLY DISPOSED IN THE BORE AND HAVING A THROUGHBORE TERMINATING AT OPPOSED END SURFACES OF EQUAL AREAS PROJECTED NORMAL TO THE LONGITUDINAL AXIS OF THE BORE, SAID PISTON BEING AXIALLY TRANSLATABLE WITHIN THE BORE BETWEEN TWO EXTREME POSITIONS WHEREAT A PORTION OF THE END SURFACE OF SAID PISTON IS IN CONTACT WITH ITS ADJACENT ABUTMENT, EACH ABUTMENT AND END SURFACE CONSTITUTED AND ARRANGED IN SAID EXTREME POSITIONS TO DEFINE WITH SAID BORE AN ANNULAR CAVITY, MEANS FOR PROVIDING FLUID COMMUNICATION BETWEEN EACH DEFINED ANNULAR CAVITY AND THE THROUGHBORE OF THE PISTON, SAID VALVE BODY HAVING A FLUID INLET COMMUNICATING WITH THE BORE AND THETHROUGH-BORE, SAID VALVE BODY ALSO HAVING A PAIR OF AXIALLY SPACED FLUID OUTLETS COMMUNICATING WITH THE BORE BETWEEN THE ABUTMENTS, EACH OF SAID OUTLETS BEING SPACED FROM ITS ADJACENT ABUTMENT AND ITS REMOTE ABUTMENT RESPECTIVELY, A DISTANCE LESS THAN AND GREATER THAN THE LENGTH OF THE PISTON, AND MEANS FOR TRANSLATING THE PISTON WITHIN THE 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) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |