US3109970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-adaptive servo system
Assignee: North American Aviation Corp
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Filing: 1959-12-09
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Granted: 1963-11-05
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Expires: 1979-12-09
Abstract
No abstract record available.
Inventors
- 👤 Richard K Smyth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:27
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/1445; G05D3/1454; G05D1/00; G05D1/08; G05D1/0808; G05D1/0816
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A SELF-ADAPTIVE SERVO SYSTEM FOR CONTROLLING A DEVICE IN RESPONSE TO INPUT COMMAND SIGNAL COMPRISING MEANS FOR SENSING RESPONSE OF THE CONTROLLED DEVICE AND PRODUCING AN ELECTRICAL OUTPUT PROPORTIONAL THERETO, MEANS FOR GENERATING AN OSCILLATORY TEST SIGNAL, MEANS FOR COMBINING IN THE SAME CHANNEL THE OUTPUT OF SAID TEST SIGNAL GENERATING MEANS AND SAID INPUT COMMAND, SIGNAL FORWARD LOOP MEANS RESPONSIVE TO THE OUTPUT OF SAID COMBINING MEANS FOR ACTUATING SAID DEVICE, A BANDPASS FILTER TUNED TO THE FREQUENCY OF SAID TEST SIGNAL GENERATING
Claim 2
Dependent Claim
84 words
A SELF-ADAPTIVE SERVO SYSTEM FOR CONTROLLING A DEVICE IN RESPONSE TO INPUT COMMAND SIGNAL COMPRISING MEANS FOR SENSING RESPONSE OF THE CONTROLLED DEVICE AND PRODUCING AN ELECTRICAL OUTPUT PROPORTIONAL THERETO, MEANS FOR GENERATING AN OSCILLATORY TEST SIGNAL, MEANS FOR COMBINING IN THE SAME CHANNEL THE OUTPUT OF SAID TEST SIGNAL GENERATING MEANS AND SAID INPUT COMMAND, SIGNAL FORWARD LOOP MEANS RESPONSIVE TO THE OUTPUT OF SAID COMBINING MEANS FOR ACTUATING SAID DEVICE, A BANDPASS FILTER TUNED TO THE FREQUENCY OF SAID TEST SIGNAL GENERATING
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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |