Patent US3211974A successfully refreshed from Google Patents.
US3211974A
Expired / Lapsed
US
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Servo system with rate feedback
Assignee: Collins Radio Co
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Filing: 1963-08-29
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Granted: 1965-10-12
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Expires: 1983-08-29
Abstract
No abstract record available.
Inventors
- 👤 Melvin H Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:49
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/02; G05D1/0206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A SERVO SYSTEM WHICH ELIMINATES THE REQUIREMENTS FOR A RATE GENERATOR COMPRISING A SERVO MOTOR WITH AN ENERGIZING WINDING AND A REFERENCE WINDING, A COMMAND SIGNAL COMPUTER, A FIRST SWITCH CONNECTED BETWEEN THE COMMAND COMPUTER AND THE ENERGIZING WINDING OF THE SERVO MOTOR, A POWER SUPPLY CONNECTED TO THE REFERENCE WINDING OF THE SERVO MOTOR AND THE COMMAND SIGNAL COMPUTER, A SECOND SWITCH CONNECTED TO THE ENERGIZING WINDING, A MEMORY CIRCUIT CONNECTED TO THE OUTPUT OF THE SECOND SWITCH, THE OUTPUT OF THE MEMORY DEVICE CONNECTED TO THE
Claim 2
Dependent Claim
88 words
A SERVO SYSTEM WHICH ELIMINATES THE REQUIREMENTS FOR A RATE GENERATOR COMPRISING A SERVO MOTOR WITH AN ENERGIZING WINDING AND A REFERENCE WINDING, A COMMAND SIGNAL COMPUTER, A FIRST SWITCH CONNECTED BETWEEN THE COMMAND COMPUTER AND THE ENERGIZING WINDING OF THE SERVO MOTOR, A POWER SUPPLY CONNECTED TO THE REFERENCE WINDING OF THE SERVO MOTOR AND THE COMMAND SIGNAL COMPUTER, A SECOND SWITCH CONNECTED TO THE ENERGIZING WINDING, A MEMORY CIRCUIT CONNECTED TO THE OUTPUT OF THE SECOND SWITCH, THE OUTPUT OF THE MEMORY DEVICE CONNECTED TO THE
References Cited (Backward Citations)
US2471422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |