US3116042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic stability control device
Assignee: Lockheed Martin Corp
•
Filing: 1960-09-15
•
Granted: 1963-12-31
•
Expires: 1980-09-15
Abstract
No abstract record available.
Inventors
- 👤 Heinz K Richter
- 👤 Ralph R Heppe
- 👤 Celniker Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:18
CPC Classifications
B; B64; B64C; B64C13/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
AN AUTOMATIC STABILITY CONTROL DEVICE FOR AIRCRAFT HAVING STEERING MEANS COMPRISING, TRANSDUCER MEANS DETECTING THE RATE OF CHANGE OF AIRCRAFT ATTITUDE AND PROVIDING AN OUTPUT SIGNAL PROPORTIONAL THERETO, CONTROL MEANS CONNECTING WITH SAID TRANSDUCER MEANS AND PROVIDING A DIRECT CURRENT CONTROL VOLTAGE THE POLARITY OF WHICH REVERSES AT THE MAGNITUDE OF THE TRANSDUCER OUTPUT SIGNAL REPRESENTING THE THRESHOLD TO INSTABILITY, AND AN ACTUATOR RESPONSIVE TO THE DIRECT CURRENT CONTROL VOLTAGE OF ONLY ONE POLARITY FOR URGING THE STEERING MEANS IN A DIRECTION TO DECREASE THE MAGNITUDE OF THE OUTPUT 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) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |