Patent US3146970A successfully refreshed from Google Patents.
US3146970A
Expired / Lapsed
US
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Heliplane
Assignee: Teledyne Ryan Aeronautical Corp
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Filing: 1963-07-01
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Granted: 1964-09-01
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Peter F Girard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:17
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/22; B64C27/26; B64C27/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
AN AIRCRAFT, COMPRISING: AN AIRFRAME; A WING HAVING A CENTER SECTION AND AT LEAST THREE RADIALLY EXTENDING ARMS; SAID WING BEING MOUNTED ON SAID AIRFRAME FOR ROTATION ABOUT AN AXIS PERPENDICULAR TO THE CENTER OF SYMMETRY OF THE WING; A SOURCE OF POWER CONNECTED TO ROTATE SAID WING; THE TIP PORTIONS OF SAID ARMS BEING PIVOTALLY MOUNTED ON SUBSTANTIALLY RADIAL AXES FOR INCLINATION RELATIVE TO THE CHORD PLANE OF THE WING AND COMPRISING LIFTING ROTOR PORTIONS; PITCH, ROLL AND COLLECTIVE CONTROL MEANS OPERATIVELY CONNECTED TO SAID TIP PORTIONS TO VARY THE INCLINATION THEREOF CYCLICALLY AND COLLECTIVELY AS SAID WING ROTATES; LOCKING MEANS TO HOLD SAID WING STATIONARY WITH ONE OF SAID ARMS EXTENDING FORWARDLY ON THE AIRCRAFT;
Claim 2
Dependent Claim
117 words
AN AIRCRAFT, COMPRISING: AN AIRFRAME; A WING HAVING A CENTER SECTION AND AT LEAST THREE RADIALLY EXTENDING ARMS; SAID WING BEING MOUNTED ON SAID AIRFRAME FOR ROTATION ABOUT AN AXIS PERPENDICULAR TO THE CENTER OF SYMMETRY OF THE WING; A SOURCE OF POWER CONNECTED TO ROTATE SAID WING; THE TIP PORTIONS OF SAID ARMS BEING PIVOTALLY MOUNTED ON SUBSTANTIALLY RADIAL AXES FOR INCLINATION RELATIVE TO THE CHORD PLANE OF THE WING AND COMPRISING LIFTING ROTOR PORTIONS; PITCH, ROLL AND COLLECTIVE CONTROL MEANS OPERATIVELY CONNECTED TO SAID TIP PORTIONS TO VARY THE INCLINATION THEREOF CYCLICALLY AND COLLECTIVELY AS SAID WING ROTATES; LOCKING MEANS TO HOLD SAID WING STATIONARY WITH ONE OF SAID ARMS EXTENDING FORWARDLY ON THE AIRCRAFT;
References Cited (Backward Citations)
US2899149A
Cited
US3025022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |