US3273593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timer mechanism
Assignee: —
•
Filing: —
•
Granted: 1966-09-20
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:12
CPC Classifications
C; C03; C03B; C03B9/00; C03B9/30; C03B9/40; C03B9/403; C03B9/406; F; F15; F15B; F15B21/00; F15B21/10; G; G01; G01B; G01B21/00; G01B21/10; G01B21/14; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86421; Y10T137/86437; Y10T137/86445; Y10T137/86461; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/8667; Y10T137/86694; Y10T137/8671
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
FOR USE WITH A FLUID-ACTUATED DEVICE HAVING A FIRST PORT AND A SECOND PORT, TIMED PILOT VALVE MEANS FOR CONTROLLING FLUID FLOW TO AND FROM SAID PORTS COMPRISING A FIRST PILOT VALVE INCLUDING A PORTLESS ROTOR AND SHIFTABLE MEANS CONCENTRIC WITH AND NON-ROTATABLY DRIVEN BY SAID ROTOR BETWEEN A POSITION CONNECTING SAID FIRST PORT WITH A SOURCE OF FLUID UNDER PRESSURE AND A POSITION CONNECTING SAID FIRST PORT WITH EXHAUST, AND MEANS OPERABLE DURING ROTATION OF SAID ROTOR TO ADJUST THE PHASE RELATION OF SAID SHIFTABLE MEANS TO SAID ROTOR BY ROTATIVE ADJUSTMENT OF SAID SHIFTABLE MEANS ABOUT THE AXIS OF SAID ROTOR, A SECOND PILOT VALVE INCLUDING A SECOND PORTLESS ROTOR AND SECOND SHIFTABLE MEANS CONCENTRIC WITH AND NON-ROTATABLY DRIVEN BY SAID SECOND ROTOR BETWEEN A POSITION CONNECTING SAID SECOND PORT WITH A SOURCE OF FLUID UNDER PRESSURE AND A POSITION CONNECTING SAID SECOND PORT WITH EXHAUST, AND MEANS OPERABLE DURING ROTATION OF SAID SECOND ROTOR TO ADJUST THE PHASE RELATION OF SAID SECOND SHIFTABLE MEANS TO SAID SECOND ROTOR BY ROTATIVE ADJUSTMENT OF SAID SECOND SHIFTABLE MEANS ABOUT THE AXIS OF SAID SECOND ROTOR, AND MEANS FOR DRIVING SAID ROTORS AT A FIXED RATIO OF ANGULAR VELOCITIES.
Claim 2
Dependent Claim
199 words
FOR USE WITH A FLUID-ACTUATED DEVICE HAVING A FIRST PORT AND A SECOND PORT, TIMED PILOT VALVE MEANS FOR CONTROLLING FLUID FLOW TO AND FROM SAID PORTS COMPRISING A FIRST PILOT VALVE INCLUDING A PORTLESS ROTOR AND SHIFTABLE MEANS CONCENTRIC WITH AND NON-ROTATABLY DRIVEN BY SAID ROTOR BETWEEN A POSITION CONNECTING SAID FIRST PORT WITH A SOURCE OF FLUID UNDER PRESSURE AND A POSITION CONNECTING SAID FIRST PORT WITH EXHAUST, AND MEANS OPERABLE DURING ROTATION OF SAID ROTOR TO ADJUST THE PHASE RELATION OF SAID SHIFTABLE MEANS TO SAID ROTOR BY ROTATIVE ADJUSTMENT OF SAID SHIFTABLE MEANS ABOUT THE AXIS OF SAID ROTOR, A SECOND PILOT VALVE INCLUDING A SECOND PORTLESS ROTOR AND SECOND SHIFTABLE MEANS CONCENTRIC WITH AND NON-ROTATABLY DRIVEN BY SAID SECOND ROTOR BETWEEN A POSITION CONNECTING SAID SECOND PORT WITH A SOURCE OF FLUID UNDER PRESSURE AND A POSITION CONNECTING SAID SECOND PORT WITH EXHAUST, AND MEANS OPERABLE DURING ROTATION OF SAID SECOND ROTOR TO ADJUST THE PHASE RELATION OF SAID SECOND SHIFTABLE MEANS TO SAID SECOND ROTOR BY ROTATIVE ADJUSTMENT OF SAID SECOND SHIFTABLE MEANS ABOUT THE AXIS OF SAID SECOND ROTOR, AND MEANS FOR DRIVING SAID ROTORS AT A FIXED RATIO OF ANGULAR VELOCITIES.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |