Patent US3131873A successfully refreshed from Google Patents.
US3131873A
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Ejector flap system for aircraft wing with ducted fan
Assignee: Teledyne Ryan Aeronautical Corp
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Filing: 1963-07-29
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Granted: 1964-05-05
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Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 Karl L Sanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:50
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C29/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN COMBINATION WITH AN AIRCRAFT WING HAVING A DUCT THERETHROUGH FORWARDLY OF THE TRAILING EDGE OF THE WING AND A LIFTING FAN OPERATIVELY MOUNTED IN SAID DUCT, AN EJECTOR FLAP SYSTEM, COMPRISING: A LOWER FLAP PIVOTALLY ATTACHED TO THE LOWER SURFACE OF SAID WING TO SWING DOWNWARDLY THEREFROM IMMEDIATELY REARWARDLY OF SAID DUCT; A PRIMARY FLAP IN THE TRAILING EDGE OF SAID WING, SPACED REARWARDLY OF SAID DUCT, AND HINGED TO SWING DOWNWARDLY AND DEFINE A SLOT THROUGH THE WING BETWEEN THE DUCT AND SAID PRIMARY FLAP.
Claim 2
Dependent Claim
87 words
IN COMBINATION WITH AN AIRCRAFT WING HAVING A DUCT THERETHROUGH FORWARDLY OF THE TRAILING EDGE OF THE WING AND A LIFTING FAN OPERATIVELY MOUNTED IN SAID DUCT, AN EJECTOR FLAP SYSTEM, COMPRISING: A LOWER FLAP PIVOTALLY ATTACHED TO THE LOWER SURFACE OF SAID WING TO SWING DOWNWARDLY THEREFROM IMMEDIATELY REARWARDLY OF SAID DUCT; A PRIMARY FLAP IN THE TRAILING EDGE OF SAID WING, SPACED REARWARDLY OF SAID DUCT, AND HINGED TO SWING DOWNWARDLY AND DEFINE A SLOT THROUGH THE WING BETWEEN THE DUCT AND SAID PRIMARY FLAP.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |