Patent US3153877A successfully refreshed from Google Patents.
US3153877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soaring and gliding aircraft
Assignee: AC Gilbert Co
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Filing: 1962-11-14
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Granted: 1964-10-27
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Expires: 1982-11-14
Abstract
No abstract record available.
Inventors
- 👤 Jr William L Effinger
- 👤 Struck Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:58
CPC Classifications
A; A63; A63H; A63H27/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
226 words
AN AUTOMOTIVE GLIDABLE MODEL AIRCRAFT OF THE FLEXIBLE WING TYPE HAVING AN AIR ENTERING NOSE AND COMPRISING, A MAIN STIFF SPAR EXTENDING REARWARD FROM THE NOSE OF THE AIRCRAFT, A WEIGHT AFFORDING SUBSTRUCTURE DEPENDING FROM AND RIGID WITH SAID MAIN SPAR INCLUDING AN AERODYNAMIC PRIME MOVER FIXED IN A POSITION RELATIVE TO SAID MAIN SPAR TO REACT ON AMBIENT AIR IN A DIRECTION TO IMPEL SAID MAIN SPAR NOSE FOREMOST, TWO LATERAL SPARS FREE FROM WEIGHT SUSTAINING CONNECTION TO SAID SUBSTRUCTURE ON RESPECTIVELY OPPOSITE SIDES OF SAID MAIN SPAR MUTUALLY CONVERGING TOWARD SAID NOSE OF THE AIRCRAFT TO FORM TAPERING SPACES BETWEEN SAID MAIN SPAR AND SAID LATERAL SPARS, A FLEXIBLE WING SHEET FREE FROM WEIGHT SUSTAINING CONNECTION TO SAID SUBSTRUCTURE SPANNING EACH OF SAID TAPERING SPACES AND CONNECTING SAID MAIN SPAR WITH EACH OF SAID LATERAL SPARS AND HAVING AN AREAL EXPANSE SUFFICIENTLY EXCEEDING THAT OF SAID TAPERING SPACES TO ARCH UPWARD OVER SAID SPACES WITH RESPECT TO ALL OF SAID SPARS WHEN THE CRAFT IS AIRBORNE, AND SPAR BRACING MEANS FREE FROM WEIGHT SUSTAINING CONNECTION TO SAID SUBSTRUCTURE EXTENDING CROSSWISE SAID MAIN SPAR AND ENGAGED WITH SAID LATERAL SPARS IN A MANNER TO HOLD THE LATTER IN ANGULARLY SPREAD RELATION TO SAID MAIN SPAR, TOGETHER WITH A STABILIZER COMPRISING AN AIRFOIL SUPPORTED ON AND ABOVE SAID MAIN SPAR NEAR SAID NOSE OF THE AIRCRAFT.
Claim 2
Dependent Claim
226 words
AN AUTOMOTIVE GLIDABLE MODEL AIRCRAFT OF THE FLEXIBLE WING TYPE HAVING AN AIR ENTERING NOSE AND COMPRISING, A MAIN STIFF SPAR EXTENDING REARWARD FROM THE NOSE OF THE AIRCRAFT, A WEIGHT AFFORDING SUBSTRUCTURE DEPENDING FROM AND RIGID WITH SAID MAIN SPAR INCLUDING AN AERODYNAMIC PRIME MOVER FIXED IN A POSITION RELATIVE TO SAID MAIN SPAR TO REACT ON AMBIENT AIR IN A DIRECTION TO IMPEL SAID MAIN SPAR NOSE FOREMOST, TWO LATERAL SPARS FREE FROM WEIGHT SUSTAINING CONNECTION TO SAID SUBSTRUCTURE ON RESPECTIVELY OPPOSITE SIDES OF SAID MAIN SPAR MUTUALLY CONVERGING TOWARD SAID NOSE OF THE AIRCRAFT TO FORM TAPERING SPACES BETWEEN SAID MAIN SPAR AND SAID LATERAL SPARS, A FLEXIBLE WING SHEET FREE FROM WEIGHT SUSTAINING CONNECTION TO SAID SUBSTRUCTURE SPANNING EACH OF SAID TAPERING SPACES AND CONNECTING SAID MAIN SPAR WITH EACH OF SAID LATERAL SPARS AND HAVING AN AREAL EXPANSE SUFFICIENTLY EXCEEDING THAT OF SAID TAPERING SPACES TO ARCH UPWARD OVER SAID SPACES WITH RESPECT TO ALL OF SAID SPARS WHEN THE CRAFT IS AIRBORNE, AND SPAR BRACING MEANS FREE FROM WEIGHT SUSTAINING CONNECTION TO SAID SUBSTRUCTURE EXTENDING CROSSWISE SAID MAIN SPAR AND ENGAGED WITH SAID LATERAL SPARS IN A MANNER TO HOLD THE LATTER IN ANGULARLY SPREAD RELATION TO SAID MAIN SPAR, TOGETHER WITH A STABILIZER COMPRISING AN AIRFOIL SUPPORTED ON AND ABOVE SAID MAIN SPAR NEAR SAID NOSE OF THE AIRCRAFT.
References Cited (Backward Citations)
US2537560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |