US3333793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced lift yaw control system for vtol aircraft
Assignee: Teledyne Ryan Aeronautical Corp
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Filing: 1965-08-06
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Granted: 1967-08-01
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Expires: 1985-08-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Waldo Virgil Opfer
- 👤 Priestley Richard Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:18
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C29/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN AN AIRCRAFT, A YAW CONTROL SYSTEM, COMPRISING: A SOURCE OF GAS FLOW HAVING A SUBSTANTIALLY DOWNWARDLY DIRECTED OUTLET; FLOW GUIDING MEANS MOUNTED AT SAID OUTLET AND HAVING GUIDING ELEMENTS DIVIDING THE FLOW INTO SEPARATE STREAMS; SAID GUIDING ELEMENTS HAVING A NEUTRAL POSITION AT WHICH THE STREAMS OF GAS FLOW ARE DIRECTED SYMMETRICALLY DIVERGENTLY DOWNWARDLY; AND SAID GUIDING ELEMENTS BEING MOVABLE TO DEFLECT ONE STREAM OF THE GAS FLOW MORE LATERALLY WHILE SIMUTANEOUSLY DEFLECTING THE OTHER STREAM MORE NEARLY VERTICALLY DOWNWARDLY, WHEREBY THE TOTAL EFFECTIVE LIFT FORCE OF THE GAS FLOW IS SUBSTANTIALLY CONSTANT.
Claim 2
Dependent Claim
94 words
IN AN AIRCRAFT, A YAW CONTROL SYSTEM, COMPRISING: A SOURCE OF GAS FLOW HAVING A SUBSTANTIALLY DOWNWARDLY DIRECTED OUTLET; FLOW GUIDING MEANS MOUNTED AT SAID OUTLET AND HAVING GUIDING ELEMENTS DIVIDING THE FLOW INTO SEPARATE STREAMS; SAID GUIDING ELEMENTS HAVING A NEUTRAL POSITION AT WHICH THE STREAMS OF GAS FLOW ARE DIRECTED SYMMETRICALLY DIVERGENTLY DOWNWARDLY; AND SAID GUIDING ELEMENTS BEING MOVABLE TO DEFLECT ONE STREAM OF THE GAS FLOW MORE LATERALLY WHILE SIMUTANEOUSLY DEFLECTING THE OTHER STREAM MORE NEARLY VERTICALLY DOWNWARDLY, WHEREBY THE TOTAL EFFECTIVE LIFT FORCE OF THE GAS FLOW IS SUBSTANTIALLY CONSTANT.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |