Patent US3322939A successfully refreshed from Google Patents.
US3322939A
Expired / Lapsed
US
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Flight aid system for indicating failure of the stabilizing system
Assignee: Ferranti International PLC
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Filing: 1963-04-08
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Granted: 1967-05-30
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Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 Curties Maurice Cecil
- 👤 John Oliver Beauchamp St
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:30
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/82; B64C13/00; B64C13/24; G; G05; G05D; G05D1/00; G05D1/08; G05D1/0808; G05D1/0816; G05D1/0833
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A FLIGHT AID SYSTEM FOR AN AIRCRAFT HAVING A MEMBER TO BE CONTROLLED WHILE THE AIRCRAFT IS IN FLIGHT INCLUDING A LIMITED AUTHORITY AUTOSTABILIZER, AN AUTOSTABILIZER, COMPUTER FOR CONTROLLING THE OPERATION OF SAID AUTOSTABILIZER, AN OUTPUT CONTROL MEMBER OPERTIVELY CONNECTED TO THE MEMBER TO BE CONTROLLED AND ACTUATED BY SAID AUTOSTABILIZER, A FLIGHT DIRECTOR DISPLAY, A FLIGHT DIRECTOR COMPUTER FOR CONTROLLING SAID FLIGHT DIRECTOR DISPLAY, SAID FLIGHT DIRECTOR COMPUTER BEING DESIGNED TO INCORPORATE STABILIZING CONTROL EQUATIONS SIMILAR TO THOSE OF SAID AUTOSTABILIZER
Claim 2
Dependent Claim
82 words
A FLIGHT AID SYSTEM FOR AN AIRCRAFT HAVING A MEMBER TO BE CONTROLLED WHILE THE AIRCRAFT IS IN FLIGHT INCLUDING A LIMITED AUTHORITY AUTOSTABILIZER, AN AUTOSTABILIZER, COMPUTER FOR CONTROLLING THE OPERATION OF SAID AUTOSTABILIZER, AN OUTPUT CONTROL MEMBER OPERTIVELY CONNECTED TO THE MEMBER TO BE CONTROLLED AND ACTUATED BY SAID AUTOSTABILIZER, A FLIGHT DIRECTOR DISPLAY, A FLIGHT DIRECTOR COMPUTER FOR CONTROLLING SAID FLIGHT DIRECTOR DISPLAY, SAID FLIGHT DIRECTOR COMPUTER BEING DESIGNED TO INCORPORATE STABILIZING CONTROL EQUATIONS SIMILAR TO THOSE OF SAID AUTOSTABILIZER
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |