Patent US1390596A successfully refreshed from Google Patents.
US3113749A
Expired / Lapsed
US
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Aircraft automatic control apparatus
Assignee: Honeywell Inc
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Filing: 1960-12-15
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Granted: 1963-12-10
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Expires: 1980-12-15
Abstract
No abstract record available.
Inventors
- 👤 Robert C K Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:35
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/08; G05D1/0808; G05D1/0816; G05D1/0825
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN CONDITION CONTROL APPARATUS HAVING A CONDITION CHANGING MEANS, IN COMBINATION: A MODEL SIMULATING AN IDEAL APPARATUS AS TO OPERATING CONDITIONS AND HAVING AN OUTPUT SIGNAL REPRESENTING THE DESIRED RESPONSE FUNCTION OF THE APPARATUS TO THE CHANGE OF THE CONDITION; A CONDITION CHANGE RATE SIGNAL PROVIDING DEVICE; FURTHER MEANS COMBINING THE SIGNAL FROM THE MODEL AND THE RATE DEVICE TO PROVIDE A CONTROL SIGNAL; A VARIABLE GAIN LINEAR AMPLIFIER HAVING AS ITS INPUT SAID CONTROL SIGNAL; A SERVOMOTOR OPERATED BY SAID AMPLIFIER AND POSITIONING SAID CONDITION CHANGING MEANS TO PROVIDE AN OUTER LOOP CONTROLLING THE CONDITION; ADDITIONAL MEANS FORMING AN INNER LOOP INCLUDING MEANS ADJUSTING THE GAIN OF THE AMPLIFIER RESPONSIVE TO A SECOND FUNCTION OF THE CONDITION AND THE CONTROL SIGNAL.
Claim 2
Dependent Claim
122 words
IN CONDITION CONTROL APPARATUS HAVING A CONDITION CHANGING MEANS, IN COMBINATION: A MODEL SIMULATING AN IDEAL APPARATUS AS TO OPERATING CONDITIONS AND HAVING AN OUTPUT SIGNAL REPRESENTING THE DESIRED RESPONSE FUNCTION OF THE APPARATUS TO THE CHANGE OF THE CONDITION; A CONDITION CHANGE RATE SIGNAL PROVIDING DEVICE; FURTHER MEANS COMBINING THE SIGNAL FROM THE MODEL AND THE RATE DEVICE TO PROVIDE A CONTROL SIGNAL; A VARIABLE GAIN LINEAR AMPLIFIER HAVING AS ITS INPUT SAID CONTROL SIGNAL; A SERVOMOTOR OPERATED BY SAID AMPLIFIER AND POSITIONING SAID CONDITION CHANGING MEANS TO PROVIDE AN OUTER LOOP CONTROLLING THE CONDITION; ADDITIONAL MEANS FORMING AN INNER LOOP INCLUDING MEANS ADJUSTING THE GAIN OF THE AMPLIFIER RESPONSIVE TO A SECOND FUNCTION OF THE CONDITION AND THE CONTROL SIGNAL.
References Cited (Backward Citations)
GB624201A
Cited
US2948494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |