Patent US3139893A successfully refreshed from Google Patents.
US3139893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo governor having emergency control means
Assignee: Bendix Corp
•
Filing: 1957-09-05
•
Granted: 1964-07-07
•
Expires: 1977-09-05
Abstract
No abstract record available.
Inventors
- 👤 Andrew A Kuzmitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:49
CPC Classifications
G; G05; G05D; G05D13/00; G05D13/08; G05D13/10; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2579
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
AN ENGINE SPEED GOVERNOR COMPRISING MOTIVE FLUID FLOW REGULATING VALVE MEANS, A CHAMBER ADJACENT SAID VALVE MEANS ADAPTED TO RECEIVE FLUID UNDER PRESSURE, SAID PRESSURE FLUID URGING SAID VALVE MEANS TOWARDS CLOSED POSITION, SERVO-MECHANISM FOR VARYING THE PRESSURE OF THE FLUID IN SAID CHAMBER AS A FUNCTION OF A PRESELECTED ENGINE SPEED INCLUDING MANUALLY CONTROLLED MEANS FOR SELECTING THE SPEED OF THE ENGINE TO BE CONTROLLED BY THE GOVERNOR, AND MEANS URGING SAID VALVE MEANS TOWARDS OPEN POSITION AND BECOMING EFFECTIVE TO ESTABLISH A MECHANICAL CONNECTION BETWEEN SAID MANUAL MEANS AND SAID VALVE MEANS IN THE EVENT OF LOSS OF FLUID PRESSURE IN SAID CHAMBER.
Claim 2
Dependent Claim
105 words
AN ENGINE SPEED GOVERNOR COMPRISING MOTIVE FLUID FLOW REGULATING VALVE MEANS, A CHAMBER ADJACENT SAID VALVE MEANS ADAPTED TO RECEIVE FLUID UNDER PRESSURE, SAID PRESSURE FLUID URGING SAID VALVE MEANS TOWARDS CLOSED POSITION, SERVO-MECHANISM FOR VARYING THE PRESSURE OF THE FLUID IN SAID CHAMBER AS A FUNCTION OF A PRESELECTED ENGINE SPEED INCLUDING MANUALLY CONTROLLED MEANS FOR SELECTING THE SPEED OF THE ENGINE TO BE CONTROLLED BY THE GOVERNOR, AND MEANS URGING SAID VALVE MEANS TOWARDS OPEN POSITION AND BECOMING EFFECTIVE TO ESTABLISH A MECHANICAL CONNECTION BETWEEN SAID MANUAL MEANS AND SAID VALVE MEANS IN THE EVENT OF LOSS OF FLUID PRESSURE IN SAID CHAMBER.
References Cited (Backward Citations)
US1339939A
Cited
FR516144A
Cited
US2371793A
Cited
US2616397A
Cited
US2702560A
Cited
US2646813A
Cited
US2705047A
Cited
US2669973A
Cited
US2711158A
Cited
US2847020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |