US3251982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo computer circuit particularly adapted to compute angle of attack
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1961-04-17
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Granted: 1966-05-17
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Expires: 1981-04-17
Abstract
No abstract record available.
Inventors
- 👤 Kemmer John Paul
- 👤 Robert E Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:22
CPC Classifications
B; B64; B64D; B64D43/00; B64D43/02; G; G06; G06G; G06G7/00; G06G7/48; G06G7/78
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
IN COMBINATION, A SYNCHRO TRANSFORMER, A SUMMING CIRCUIT, A SERVO AMPLIFIER AND A SERVO MOTOR CONNECTED TO THE OUTPUT OF THE SUMMING CIRCUIT, MEANS FOR PROVIDING ELECTRICAL SIGNALS DEPENDENT UPON BOTH THE POSITION OF THE SERVO MOTOR AND AN INDEPENDENT VARIABLE AND FOR COUPLING THESE SIGNALS TO AN INPUT OF SUMMING CIRCUIT, MEANS FOR MECHANICALLY COUPLING THE SERVO MOTOR TO THE SYNCHRO TRANSFORMER, AND MEANS FOR CONNECTING THE SYNCHRO CONTROL TRANSFORMER OUTPUT TO ANOTHER INPUT OF THE SUMMING CIRCUIT.
References Cited (Backward Citations)
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Cited
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US2832021A
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US2913180A
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US2915247A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |