US3168265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for aircraft with slow flight or hovering characteristics, in particular for vertically starting and landing aircraft
Assignee: Dornier Werke GmbH
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Filing: 1963-09-12
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Granted: 1965-02-02
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Expires: 1983-09-12
Abstract
No abstract record available.
Inventors
- 👤 Pfaff Klaus
- 👤 Riedel Erhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:30
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0091; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20207
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A AIRCRAFT ADAPTED FOR SLOW HORIZONTAL FLIGHT AND FOR HOVERING AND VERTICAL FLIGHT; FIRST ATTITUDE CONTROL MEANS FOR CONTROLLING THE ATTITUDE OF THE AIRCRAFT DURING HORIZONTAL FLIGHT, SECOND ATTITUDE CONTROL MEANS FOR CONTROLLING THE ATTITUDE OF THE AIRCRAFT DURING HOVERING AND VERTICAL FLIGHT, REGULATING MEANS OPERATIVELY CONNECTED TO SAID ATTITUDE CONTROL MEANS, ACTUATING MEANS CONNECTED TO SAID REGULATING MEANS FOR ACTUATING SAID REGULATING MEANS, SAID REGULATING MEANS INCLUDING ADJUSTABLE TRANSMISSION MEANS FOR ADJUSTING THE RELATIVE EFFECT OF SAID ACTUATING MEANS ON SAID FIRST AND SAID SECOND ATTITUDE CONTROL MEANS, AND MEANS RESPONSIVE TO THE HORIZONTAL FLIGHT SPEED OF THE AIRCRAFT, SAID SPEED RESPONSIVE MEANS BEING OPERATIVELY CONNECTED TO SAID TRANSMISSION MEANS FOR DECREASING THE EFFECT OF SAID ACTUATING MEANS ON SAID SECOND ATTITUDE CONTROL MEANS UPON INCREASING HORIZONTAL FLIGHT SPEED, AND CONVERSELY.
Claim 2
Dependent Claim
133 words
IN A AIRCRAFT ADAPTED FOR SLOW HORIZONTAL FLIGHT AND FOR HOVERING AND VERTICAL FLIGHT; FIRST ATTITUDE CONTROL MEANS FOR CONTROLLING THE ATTITUDE OF THE AIRCRAFT DURING HORIZONTAL FLIGHT, SECOND ATTITUDE CONTROL MEANS FOR CONTROLLING THE ATTITUDE OF THE AIRCRAFT DURING HOVERING AND VERTICAL FLIGHT, REGULATING MEANS OPERATIVELY CONNECTED TO SAID ATTITUDE CONTROL MEANS, ACTUATING MEANS CONNECTED TO SAID REGULATING MEANS FOR ACTUATING SAID REGULATING MEANS, SAID REGULATING MEANS INCLUDING ADJUSTABLE TRANSMISSION MEANS FOR ADJUSTING THE RELATIVE EFFECT OF SAID ACTUATING MEANS ON SAID FIRST AND SAID SECOND ATTITUDE CONTROL MEANS, AND MEANS RESPONSIVE TO THE HORIZONTAL FLIGHT SPEED OF THE AIRCRAFT, SAID SPEED RESPONSIVE MEANS BEING OPERATIVELY CONNECTED TO SAID TRANSMISSION MEANS FOR DECREASING THE EFFECT OF SAID ACTUATING MEANS ON SAID SECOND ATTITUDE CONTROL MEANS UPON INCREASING HORIZONTAL FLIGHT SPEED, AND CONVERSELY.
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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |