Patent US3129686A successfully refreshed from Google Patents.
US3129686A
Expired / Lapsed
US
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Marine autopilot
Assignee: General Precision Inc
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Filing: 1962-07-19
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Granted: 1964-04-21
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Expires: 1982-07-19
Abstract
No abstract record available.
Inventors
- 👤 Paul J Sakson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:10
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/02; G05D1/0206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
AN AUTOPILOT FOR A VEHICLE INCLUDING A PROPULSION ENGINE AND A RUDDER COMPRISING, COMPASS MEANS FOR DETERMINING THE DIRECTION OF NORTH RELATIVE TO THE LONGITUDINAL AXIS OF SAID VEHICLE, MEANS DEVELOPING A HEADING ANGLE SIGNAL FROM SAID COMPASS MEANS, MEANS FOR GENERATING A COURSE ANGLE SIGNAL, MEANS FOR SUBTRACTING SAID HEADING AND COURSE SIGNALS TO GENERATE AN ERROR SIGNAL, A MOTOR CONNECTED TO SAID RUDDER TO STEER THE VEHICLE, MEANS APPLYING SAID CORRECTION SIGNAL TO SAID MOTOR, MEANS DERIVING A TELLTALE SIGNAL FROM THE POSITION OF SAID RUDDER HAVING AN AMPLITUDE AND SENSE DIRECTLY REPRESENTING THE AMPLITUDE AND SENSE OF RUDDER ANGLE, MEANS COMBINING SAID TELLTALE SIGNAL WITH SAID CORRECTION SIGNAL, AN ENGINE TIMER OPERATED BY SAID ENGINE AT A RATE PROPORTIONAL TO THE SPEED THEREOF, MEANS FOR DERIVING A SIGNAL FROM SAID ENGINE TIMER HAVING AN AMPLITUDE PROPORTIONAL TO THE SPEED OF SAID MOTOR. AND MEANS COMBINING SAID SIGNAL WITH SAID CORRECTION SIGNAL.
Claim 2
Dependent Claim
154 words
AN AUTOPILOT FOR A VEHICLE INCLUDING A PROPULSION ENGINE AND A RUDDER COMPRISING, COMPASS MEANS FOR DETERMINING THE DIRECTION OF NORTH RELATIVE TO THE LONGITUDINAL AXIS OF SAID VEHICLE, MEANS DEVELOPING A HEADING ANGLE SIGNAL FROM SAID COMPASS MEANS, MEANS FOR GENERATING A COURSE ANGLE SIGNAL, MEANS FOR SUBTRACTING SAID HEADING AND COURSE SIGNALS TO GENERATE AN ERROR SIGNAL, A MOTOR CONNECTED TO SAID RUDDER TO STEER THE VEHICLE, MEANS APPLYING SAID CORRECTION SIGNAL TO SAID MOTOR, MEANS DERIVING A TELLTALE SIGNAL FROM THE POSITION OF SAID RUDDER HAVING AN AMPLITUDE AND SENSE DIRECTLY REPRESENTING THE AMPLITUDE AND SENSE OF RUDDER ANGLE, MEANS COMBINING SAID TELLTALE SIGNAL WITH SAID CORRECTION SIGNAL, AN ENGINE TIMER OPERATED BY SAID ENGINE AT A RATE PROPORTIONAL TO THE SPEED THEREOF, MEANS FOR DERIVING A SIGNAL FROM SAID ENGINE TIMER HAVING AN AMPLITUDE PROPORTIONAL TO THE SPEED OF SAID MOTOR. AND MEANS COMBINING SAID SIGNAL WITH SAID CORRECTION SIGNAL.
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |