Patent US3184667A successfully refreshed from Google Patents.
US3184667A
Expired / Lapsed
US
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Altitude selector system for automatic pilot
Assignee: Bendix Corp
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Filing: 1962-10-26
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Granted: 1965-05-18
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Expires: 1982-10-26
Abstract
No abstract record available.
Inventors
- 👤 Kufert Larry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:57
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/04; G05D1/06; G05D1/0607
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN AN ELEVATOR CONTROLLING AUTOMATIC PILOT INCLUDING MEANS OPERABLE TO ADJUST THE ELEVATOR SO AS TO MAINTAIN A SELECTED ALTITUDE CONDITION, A PITCH CONTROLLER OPERABLE IN OPPOSITE SENSES FROM A NULL POSITION TO CAUSE THE AUTOMATIC PILOT TO POSITION THE ELEVATOR SO AS TO VARY THE FLIGHT ALTITUDE OF THE AIRCRAFT, OPERATOR-OPERATIVE MEANS FOR GRADUALLY RENDERING THE PITCH CONTROLLER INOPERATIVE, AND MEANS RESPONSIVE TO OPERATION OF SAID OPERATOR-OPERATIVE MEANS FOR RETURNING THE SAID PITCH CONTROLLER TO THE NULL POSITION UPON THE PITCH CONTROLLER BEING RENDERED INOPERATIVE.
Claim 2
Dependent Claim
86 words
IN AN ELEVATOR CONTROLLING AUTOMATIC PILOT INCLUDING MEANS OPERABLE TO ADJUST THE ELEVATOR SO AS TO MAINTAIN A SELECTED ALTITUDE CONDITION, A PITCH CONTROLLER OPERABLE IN OPPOSITE SENSES FROM A NULL POSITION TO CAUSE THE AUTOMATIC PILOT TO POSITION THE ELEVATOR SO AS TO VARY THE FLIGHT ALTITUDE OF THE AIRCRAFT, OPERATOR-OPERATIVE MEANS FOR GRADUALLY RENDERING THE PITCH CONTROLLER INOPERATIVE, AND MEANS RESPONSIVE TO OPERATION OF SAID OPERATOR-OPERATIVE MEANS FOR RETURNING THE SAID PITCH CONTROLLER TO THE NULL POSITION UPON THE PITCH CONTROLLER BEING RENDERED INOPERATIVE.
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) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |