US3094041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servomechanism
Assignee: De Laval Steam Turbine Co
•
Filing: 1960-10-07
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Granted: 1963-06-18
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Expires: 1980-10-07
Abstract
No abstract record available.
Inventors
- 👤 Vincent S Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:12
CPC Classifications
F; F01; F01D; F01D21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A SERVOMECHANISM COMPRISING A CYLINDER, A DISPLACEABLE MEMBER WITHIN SAID CYLINDER, A SOURCE OF HYDRAULIC PRESSURE FOR DRIVING SAID MEMBER, AN OUTPUT MEMBER CONNECTED TO SAID DISPLACEABLE MEMBER FOR TRANSMITTING MOVEMENT THEREOF, A PILOT VALVE MEMBER HAVING MEANS FOR THE HYDRAULIC CONTROL OF THE OPERATION OF SAID DISPLACEABLE MEMBER BY SAID HYDRAULIC PRESSURE, SAID DISPLACEABLE MEMBER CONSTITUTING A FOLLOWER DRIVEN IN DIRECT RELATION TO THE MOVEMENT OF SAID VALVE MEMBER, INTERMESHING LUGS ON SAID OUTPUT MEMBER AND VALVE MEMBER, THE LUGS ON SAID OUTPUT MEMBER NORMALLY BEING DISENGAGED FROM AND FOLLOWING THE LUGS ON SAID VALVE MEMBER, MEANS FOR OPERATING SAID VALVE MEMBER, MEANS NORMALLY PREVENTING MOVEMENT OF SAID VALVE MEMBER TO AN EXTENT THAT THE LUGS ON THE VALVE MEMBER ENGAGE AND DRIVE THE LUGS ON THE OUTPUT MEMBER, AND MEANS OPERABLE TO RENDER INOPERATIVE THE LAST-MENTIONED MEANS, WHEREBY THE SAID OUTPUT MEMBER MAY BE DRIVEN DIRECTLY BY SAID VALVE MEMBER.
Claim 2
Dependent Claim
152 words
A SERVOMECHANISM COMPRISING A CYLINDER, A DISPLACEABLE MEMBER WITHIN SAID CYLINDER, A SOURCE OF HYDRAULIC PRESSURE FOR DRIVING SAID MEMBER, AN OUTPUT MEMBER CONNECTED TO SAID DISPLACEABLE MEMBER FOR TRANSMITTING MOVEMENT THEREOF, A PILOT VALVE MEMBER HAVING MEANS FOR THE HYDRAULIC CONTROL OF THE OPERATION OF SAID DISPLACEABLE MEMBER BY SAID HYDRAULIC PRESSURE, SAID DISPLACEABLE MEMBER CONSTITUTING A FOLLOWER DRIVEN IN DIRECT RELATION TO THE MOVEMENT OF SAID VALVE MEMBER, INTERMESHING LUGS ON SAID OUTPUT MEMBER AND VALVE MEMBER, THE LUGS ON SAID OUTPUT MEMBER NORMALLY BEING DISENGAGED FROM AND FOLLOWING THE LUGS ON SAID VALVE MEMBER, MEANS FOR OPERATING SAID VALVE MEMBER, MEANS NORMALLY PREVENTING MOVEMENT OF SAID VALVE MEMBER TO AN EXTENT THAT THE LUGS ON THE VALVE MEMBER ENGAGE AND DRIVE THE LUGS ON THE OUTPUT MEMBER, AND MEANS OPERABLE TO RENDER INOPERATIVE THE LAST-MENTIONED MEANS, WHEREBY THE SAID OUTPUT MEMBER MAY BE DRIVEN DIRECTLY BY SAID VALVE MEMBER.
References Cited (Backward Citations)
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US1947991A
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US2091669A
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US2261462A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |