US3219295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triple safety control system
Assignee: Lockheed Martin Corp
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Filing: 1963-07-10
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Granted: 1965-11-23
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Expires: 1983-07-10
Abstract
No abstract record available.
Inventors
- 👤 James A Hastings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:14
CPC Classifications
B; B64; B64C; B64C13/00; B64C13/24; B64C13/38; B64C13/40; B64C13/42; B64C13/26; B64C13/28; B64C13/341
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A TRIPLE SAFETY CONTROL SYSTEM FOR AUTOMATIC PILOTCONTROLLED AIRCRAFT COMPRISING: (A) A PAIR OF DUAL CONTROL MEANS CONNECTED TO EACH CONTROL SURFACE UPON AN AIRCRAFT AND ADAPTED TO CONTROL THEIR POSITIONS RESPONSIVE TO AUTOMATIC PILOT INPUTS THERETO; (B) THREE AUTOMATIC PILOT CHANNELS CONNECTED IN PARALLEL SO AS TO PROVIDE IDENTICAL CONTROL OUTPUTS, EACH OF TWO OF SAID CHANNELS BEING CONNECTED TO ONE PORTION ONLY OF OPPOSITE ONES OF SAID DUAL CONTROL MEANS, A THIRD ONE OF SAID CHANNELS BEING CONNECTED TO THE OTHER PORTION OF EACH SAID PAIR OF CONTROL MEANS; (C) SIGNAL MEANS CONNECTED TO EACH SAID CONTROL MEANS PORTION FOR PROVIDING SIGNALS RESPONSIVE AND PROPORTIONAL TO THE MOVEMENTS OF SAID CONTROL MEANS PORTIONS; (D) A SIGNAL MONITOR CONNECTED TO SAID SIGNAL MEANS FOR RECEIVING AND COMPARING SUCH SIGNALS, DETERMINING FAULTY OPERATION AND PROVIDING AN OUTPUT SIGNAL TO INDICATE THE EXISTANCE OF FAULT; AND (E) INSOLATION MEANS FOR ISOLATING FAULTY OPERATING SYSTEM PORTIONS RESPONSIVE TO SIGNALS FROM SAID MONITOR.
Claim 2
Dependent Claim
160 words
A TRIPLE SAFETY CONTROL SYSTEM FOR AUTOMATIC PILOTCONTROLLED AIRCRAFT COMPRISING: (A) A PAIR OF DUAL CONTROL MEANS CONNECTED TO EACH CONTROL SURFACE UPON AN AIRCRAFT AND ADAPTED TO CONTROL THEIR POSITIONS RESPONSIVE TO AUTOMATIC PILOT INPUTS THERETO; (B) THREE AUTOMATIC PILOT CHANNELS CONNECTED IN PARALLEL SO AS TO PROVIDE IDENTICAL CONTROL OUTPUTS, EACH OF TWO OF SAID CHANNELS BEING CONNECTED TO ONE PORTION ONLY OF OPPOSITE ONES OF SAID DUAL CONTROL MEANS, A THIRD ONE OF SAID CHANNELS BEING CONNECTED TO THE OTHER PORTION OF EACH SAID PAIR OF CONTROL MEANS; (C) SIGNAL MEANS CONNECTED TO EACH SAID CONTROL MEANS PORTION FOR PROVIDING SIGNALS RESPONSIVE AND PROPORTIONAL TO THE MOVEMENTS OF SAID CONTROL MEANS PORTIONS; (D) A SIGNAL MONITOR CONNECTED TO SAID SIGNAL MEANS FOR RECEIVING AND COMPARING SUCH SIGNALS, DETERMINING FAULTY OPERATION AND PROVIDING AN OUTPUT SIGNAL TO INDICATE THE EXISTANCE OF FAULT; AND (E) INSOLATION MEANS FOR ISOLATING FAULTY OPERATING SYSTEM PORTIONS RESPONSIVE TO SIGNALS FROM SAID MONITOR.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |