Patent US747641A successfully refreshed from Google Patents.
Patent US3135484A successfully refreshed from Google Patents.
US3135484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for annular wing aircraft
Assignee: Lockheed Martin Corp
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Filing: 1959-11-18
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Granted: 1964-06-02
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Expires: 1979-11-18
Abstract
No abstract record available.
Inventors
- 👤 Werner E Herrmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:17
CPC Classifications
B; B64; B64C; B64C39/00; B64C39/06; B64C39/062; B64U; B64U10/00; B64U10/10; B64U10/13; B64U50/00; B64U50/10; B64U50/13; B64U50/14; B64U2201/00; B64U2201/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
AN AIRCRAFT HAVING A CENTRAL FORE AND AFT AXIS AND A MAIN BODY, AN ANNULAR WING HAVING ITS AXIS COINCIDENTAL WITH SAID CENTRAL AXIS, CANTED VANES EXTENDING RADIALLY FROM SAID MAIN BODY TO SAID ANNULAR WING AND FIXED TO SAID MAIN BODY AND SAID ANNULAR WING TO CAUSE ROTATION AROUND SAID CENTRAL AXIS WHEN INFLUENCED BY RELATIVELY MOVING AIR PARALLEL TO SAID CENTRAL AXIS, A SHAFT EXTENDING FROM AND FIXED TO SAID MAIN BODY ON SAID CENTRAL AXIS, A PENDULUM BODY MOUNTED FOR FREE ROTATION ON SAID SHAFT AND HAVING ITS CENTER OF GRAVITY BELOW SAID SHAFT, A VERTICAL FIN ON SAID PENDULUM BODY BELOW SAID CENTER OF GRAVITY, A CANTED CONTROL SURFACE MOUNTED RADIALLY FOR FREE ROTATION ON SAID PENDULUM BODY SO THAT RELATIVELY MOVING AIR PARALLEL TO THE CENTRAL AXIS WILL CAUSE SAID CANTED CONTROL SURFACE TO ROTATE ABOUT SAID PENDULUM BODY, MEANS TO PRESELECT A COURSE AND ALTITUDE, MEANS TO DETECT DEVIATIONS FROM SAID PRESELECTED COURSE AND ALTITUDE TO STOP SAID CANTED CONTROL SURFACE IN THE PLANE OF MOVEMENT REQUIRED OF SAID CENTRAL AXIS TO RETURN SAID AIRCRAFT TO SAID PRESELECTED COURSE AND ALTITUDE AND MEANS FOR EXTENDING SAID FIN INTO THE RELATIVELY MOVING AIR.
Claim 2
Dependent Claim
198 words
AN AIRCRAFT HAVING A CENTRAL FORE AND AFT AXIS AND A MAIN BODY, AN ANNULAR WING HAVING ITS AXIS COINCIDENTAL WITH SAID CENTRAL AXIS, CANTED VANES EXTENDING RADIALLY FROM SAID MAIN BODY TO SAID ANNULAR WING AND FIXED TO SAID MAIN BODY AND SAID ANNULAR WING TO CAUSE ROTATION AROUND SAID CENTRAL AXIS WHEN INFLUENCED BY RELATIVELY MOVING AIR PARALLEL TO SAID CENTRAL AXIS, A SHAFT EXTENDING FROM AND FIXED TO SAID MAIN BODY ON SAID CENTRAL AXIS, A PENDULUM BODY MOUNTED FOR FREE ROTATION ON SAID SHAFT AND HAVING ITS CENTER OF GRAVITY BELOW SAID SHAFT, A VERTICAL FIN ON SAID PENDULUM BODY BELOW SAID CENTER OF GRAVITY, A CANTED CONTROL SURFACE MOUNTED RADIALLY FOR FREE ROTATION ON SAID PENDULUM BODY SO THAT RELATIVELY MOVING AIR PARALLEL TO THE CENTRAL AXIS WILL CAUSE SAID CANTED CONTROL SURFACE TO ROTATE ABOUT SAID PENDULUM BODY, MEANS TO PRESELECT A COURSE AND ALTITUDE, MEANS TO DETECT DEVIATIONS FROM SAID PRESELECTED COURSE AND ALTITUDE TO STOP SAID CANTED CONTROL SURFACE IN THE PLANE OF MOVEMENT REQUIRED OF SAID CENTRAL AXIS TO RETURN SAID AIRCRAFT TO SAID PRESELECTED COURSE AND ALTITUDE AND MEANS FOR EXTENDING SAID FIN INTO THE RELATIVELY MOVING AIR.
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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |