US3208719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary sleeve valves
Assignee: Drilling Tools Inc
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Filing: 1964-02-20
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Granted: 1965-09-28
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Expires: 1984-02-20
Abstract
No abstract record available.
Inventors
- 👤 Eldon E Hulsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:20
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/0421; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86743; Y10T137/86751
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
IN A ROTARY SLEEVE VALVE, THE COMBINATION OF A TUBULAR VALVE BODY HAVING INLET AND OUTLET ENDS, A TRANSVERSE PARTITION PROVIDED INTERMEDIATE THE ENDS OF SAID BODY AND SEPARATING THE INLET END THEREOF FROM THE OUTLET END, A TUBULAR SLEEVE ROTATABLY POSITION ON SAID VALVE BODY, A HOUSING SURROUNDING SAID SLEEVE IN COAXIAL SPACED RELATION FOR FORMING AN ANNULAR CHAMBER AROUND SAID SLEEVE, ONE END PORTION OF SAID HOUSING ROTATABLY RECEIVING THEREIN ONE END PORTION OF SAID SLEEVE AND THE OTHER END PORTION OF SAID HOUSING EXTENDING LONGITUDINALLY BEYOND THE OTHER END OF THE SLEEVE AND BEING SEALINGLY SECURED TO SAID BODY, ONE END PORTION OF SAID BODY AND A REGION OF SAID SLEEVE SURROUNDING THE SAME BEING PROVIDED WITH A COACTING PORT MEANS OF DIFFERENT SIZES SELECTIVELY USABLE TO COMMUNICATE SAID LAST MENTIONED ONE END PORTION OF THE BODY WITH SAID CHAMBER UPON ROTATION OF SAID SLEEVE TO A PREDETERMINED POSITION RELATIVE TO SAID BODY, AND PASSAGE MEANS COMMUNICATING SAID CHAMBER WITH THE OTHER END PORTION OF SAID BODY.
Claim 2
Dependent Claim
170 words
IN A ROTARY SLEEVE VALVE, THE COMBINATION OF A TUBULAR VALVE BODY HAVING INLET AND OUTLET ENDS, A TRANSVERSE PARTITION PROVIDED INTERMEDIATE THE ENDS OF SAID BODY AND SEPARATING THE INLET END THEREOF FROM THE OUTLET END, A TUBULAR SLEEVE ROTATABLY POSITION ON SAID VALVE BODY, A HOUSING SURROUNDING SAID SLEEVE IN COAXIAL SPACED RELATION FOR FORMING AN ANNULAR CHAMBER AROUND SAID SLEEVE, ONE END PORTION OF SAID HOUSING ROTATABLY RECEIVING THEREIN ONE END PORTION OF SAID SLEEVE AND THE OTHER END PORTION OF SAID HOUSING EXTENDING LONGITUDINALLY BEYOND THE OTHER END OF THE SLEEVE AND BEING SEALINGLY SECURED TO SAID BODY, ONE END PORTION OF SAID BODY AND A REGION OF SAID SLEEVE SURROUNDING THE SAME BEING PROVIDED WITH A COACTING PORT MEANS OF DIFFERENT SIZES SELECTIVELY USABLE TO COMMUNICATE SAID LAST MENTIONED ONE END PORTION OF THE BODY WITH SAID CHAMBER UPON ROTATION OF SAID SLEEVE TO A PREDETERMINED POSITION RELATIVE TO SAID BODY, AND PASSAGE MEANS COMMUNICATING SAID CHAMBER WITH THE OTHER END PORTION OF SAID BODY.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |