Patent US3260477A successfully refreshed from Google Patents.
US3260477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flap assembly for aircraft
Assignee: Individual
•
Filing: 1964-01-31
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Granted: 1966-07-12
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Expires: 1984-01-31
Abstract
No abstract record available.
Inventors
- 👤 William E Grahame
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:06
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C29/0025; B64C23/00; B64C23/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
IN A VERTICAL TAKE-OFF AND LANDING AIRCRAFT HAVING A LIFT FAN HOUSED WITHIN A WING SECTION TO IMPART VERTICAL THRUST TO THE AIRCRAFT, A FLAP DISPOSED IN A RECESS ALONG THE TRAILING EDGE OF THE WING REARWARDLY OF SAID LIFT ALONG A MOVABLE COVER PLATE BEING PIVOTALLY CONNECTED TO THE WING SECTION AND BEING NORMALLY DISPOSED TO OVERLIE THE GAP FORMED BETWEEN SAID FLAP AND THE WING SECTION, TILTING MEANS FOR DEFLECTING SAID FLAP ABOUT AN AXIS OF ROTATION THROUGH SAID FLAP, PLATE ELEVATING MEANS FOR RAISING SAID COVER PLATE ABOVE THE WING SECTION, AND FLAP ELEVATING MEANS FOR RAISING SAID FLAP INTO AN ELEVATED POSITION REARWARDLY AND ABOVE SAID LIFT FAN WHEN SAID COVER PLATE IS IN THE RAISED POSITION.
References Cited (Backward Citations)
GB577779A
Cited
FR51663E
Cited
US2254196A
Cited
US2723091A
Cited
US3080137A
Cited
US3161374A
Cited
US3131873A
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 |