US3260481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable effective span airplane
Assignee: Ling Temco Vought Inc
•
Filing: 1964-06-29
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Granted: 1966-07-12
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Byron R Winborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:29
CPC Classifications
B; B64; B64C; B64C9/00; B64C9/14; B64C9/16; B64C9/18; B64C3/00; Y; Y02; Y02T; Y02T50/00; Y02T50/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
APPARATUS FOR VARYING THE EFFECTIVE WING SPAN OF AN AIRPLANE, SAID APPARATUS COMPRISING: A FUSELAGE, WING MEANS MOUNTED IN FIXED RELATION WITH SAID FUSELAGE, BOOM MEANS MOUNTED OUTBOARD OF SAID WING MEANS, TAIL SURFACES, DISPOSED AT A POSITIVE ANGLE OF ATTACK DURING UNACCELERATED FLIGHT, EXTENDING OUTWARD FROM SAID BOOM MEANS AND FIXEDLY POSITIONED TO LOCATED THE CENTER OF GRAVITY OF SAID AIRPLANE TO CAUSE SUBSTANTIAL LIFT LOADING OF SAID TAIL SURFACES, AND MEANS FOR INCREASING THE LIFT OF SAID WING MEANS AND FOR ESTABLISHING A NOSE DOWN MOMENT ABOUT SAID CENTER OF GRAVITY TO REDUCE THE ANGLE OF ATTACK AND THEREBY RELIEVE THE LIFT LOADING OF SAID TAIL SURFACES DURING ACCELERATED FLIGHT CONDITIONS.
Claim 2
Dependent Claim
113 words
APPARATUS FOR VARYING THE EFFECTIVE WING SPAN OF AN AIRPLANE, SAID APPARATUS COMPRISING: A FUSELAGE, WING MEANS MOUNTED IN FIXED RELATION WITH SAID FUSELAGE, BOOM MEANS MOUNTED OUTBOARD OF SAID WING MEANS, TAIL SURFACES, DISPOSED AT A POSITIVE ANGLE OF ATTACK DURING UNACCELERATED FLIGHT, EXTENDING OUTWARD FROM SAID BOOM MEANS AND FIXEDLY POSITIONED TO LOCATED THE CENTER OF GRAVITY OF SAID AIRPLANE TO CAUSE SUBSTANTIAL LIFT LOADING OF SAID TAIL SURFACES, AND MEANS FOR INCREASING THE LIFT OF SAID WING MEANS AND FOR ESTABLISHING A NOSE DOWN MOMENT ABOUT SAID CENTER OF GRAVITY TO REDUCE THE ANGLE OF ATTACK AND THEREBY RELIEVE THE LIFT LOADING OF SAID TAIL SURFACES DURING ACCELERATED FLIGHT CONDITIONS.
References Cited (Backward Citations)
FR878604A
Cited
US2555862A
Cited
US2568021A
Cited
US2576294A
Cited
DE1056482B
Cited
US3064928A
Cited
US3139248A
Cited
US3188022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |