US3135293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary control valve
Assignee: Individual
•
Filing: 1962-08-28
•
Granted: 1964-06-02
•
Expires: 1982-08-28
Abstract
No abstract record available.
Inventors
- 👤 Eldon E Hulsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:55
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/0421; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86734; Y10T137/86743; Y10T137/86863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A ROTARY SLEEVE VALVE, THE COMBINATION OF A TUBULAR VALVE BODY PROVIDED WITH A PAIR OF LONGITUDINALLY ALIGNED BUT SPACED VALVE PORTS, A TRANSVERSE PARTITION PROVIDED IN SAID BODY BETWEEN SAID PORTS, A TUBULAR SLEEVE ROTATABLY POSITIONED ON SAID BODY AND PROVIDED WITH A PAIR OF LONGITUDINALLY ALIGNED BUT SPACED PORT OPENINGS REGISTRABLE WITH THE RESPECTIVE VALVE PORTS WHEN THE SLEEVE IS ROTATED TO A PREDETERMINED POSITION RELATIVE TO SAID BODY, AND A HOUSING SURROUNDING SAID SLEEVE IN COAXIAL SPACED RELATION TO FORM AN ANNULAR CHAMBER AROUND SAID SLEEVE, ONE END OF SAID HOUSING ROTATABLY RECEIVING THEREIN ONE
Claim 2
Dependent Claim
98 words
A ROTARY SLEEVE VALVE, THE COMBINATION OF A TUBULAR VALVE BODY PROVIDED WITH A PAIR OF LONGITUDINALLY ALIGNED BUT SPACED VALVE PORTS, A TRANSVERSE PARTITION PROVIDED IN SAID BODY BETWEEN SAID PORTS, A TUBULAR SLEEVE ROTATABLY POSITIONED ON SAID BODY AND PROVIDED WITH A PAIR OF LONGITUDINALLY ALIGNED BUT SPACED PORT OPENINGS REGISTRABLE WITH THE RESPECTIVE VALVE PORTS WHEN THE SLEEVE IS ROTATED TO A PREDETERMINED POSITION RELATIVE TO SAID BODY, AND A HOUSING SURROUNDING SAID SLEEVE IN COAXIAL SPACED RELATION TO FORM AN ANNULAR CHAMBER AROUND SAID SLEEVE, ONE END OF SAID HOUSING ROTATABLY RECEIVING THEREIN ONE
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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |