US3716209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid dynamic lift generating or control force generating structures
Assignee: MINI OF TECHNOLOGY
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Filing: 1970-06-01
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Granted: 1973-02-13
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Expires: 1990-06-01
Abstract
Abstract In a fluid dynamic structure having an outer wall or skin defining a fluid dynamic profile part of the outer wall is flexible and has movable support apparatus and power apparatus are provided for effecting movement of the support apparatus and the flexible part whereby the fluid dynamic profile of the structure is changed. The invention is applicable to the leading edge of an aircraft wing and also to auxiliary control surfaces such as flaps and ailerons.
Inventors
- 👤 D Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:13
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/38; B64C3/44; B64C3/48
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
155 words
A fluid dynamic structure comprising a primary outer wall defining part of a fluid dynamic profile, a rigid internal first structure supporting said primary outer wall, a control surface structure having a secondary outer wall which is flexible in at least one region thereof, an internal secondary structure supporting said secondary outer wall, connecting means movably connecting said secondary structure to said rigid internal first structure, and power means operably connected between said rigid internal first structure and said secondary structure operative to apply a control force to effect flexure of said at least one flexible region of said control surface secondary outer wall, said secondary structure comprising a plurality of swinging arms connected at their one ends by said connecting means to said rigid internal first structure and at their other ends to said secondary outer wall, at least some of the connections between said swinging arms and said secondary outer wall being pivotal.
Claim 2
Dependent Claim
155 words
A fluid dynamic structure comprising a primary outer wall defining part of a fluid dynamic profile, a rigid internal first structure supporting said primary outer wall, a control surface structure having a secondary outer wall which is flexible in at least one region thereof, an internal secondary structure supporting said secondary outer wall, connecting means movably connecting said secondary structure to said rigid internal first structure, and power means operably connected between said rigid internal first structure and said secondary structure operative to apply a control force to effect flexure of said at least one flexible region of said control surface secondary outer wall, said secondary structure comprising a plurality of swinging arms connected at their one ends by said connecting means to said rigid internal first structure and at their other ends to said secondary outer wall, at least some of the connections between said swinging arms and said secondary outer wall being pivotal.
Claim 3
Dependent Claim
155 words
A fluid dynamic structure comprising a primary outer wall defining part of a fluid dynamic profile, a rigid internal first structure supporting said primary outer wall, a control surface structure having a secondary outer wall which is flexible in at least one region thereof, an internal secondary structure supporting said secondary outer wall, connecting means movably connecting said secondary structure to said rigid internal first structure, and power means operably connected between said rigid internal first structure and said secondary structure operative to apply a control force to effect flexure of said at least one flexible region of said control surface secondary outer wall, said secondary structure comprising a plurality of swinging arms connected at their one ends by said connecting means to said rigid internal first structure and at their other ends to said secondary outer wall, at least some of the connections between said swinging arms and said secondary outer wall being pivotal.
Claim 4
Dependent Claim
155 words
A fluid dynamic structure comprising a primary outer wall defining part of a fluid dynamic profile, a rigid internal first structure supporting said primary outer wall, a control surface structure having a secondary outer wall which is flexible in at least one region thereof, an internal secondary structure supporting said secondary outer wall, connecting means movably connecting said secondary structure to said rigid internal first structure, and power means operably connected between said rigid internal first structure and said secondary structure operative to apply a control force to effect flexure of said at least one flexible region of said control surface secondary outer wall, said secondary structure comprising a plurality of swinging arms connected at their one ends by said connecting means to said rigid internal first structure and at their other ends to said secondary outer wall, at least some of the connections between said swinging arms and said secondary outer wall being pivotal.
Claim 5
Dependent Claim
55 words
A fluid dynamic structure as claimed in claim 1 wherein said secondary struCture and said power means together comprise an extensible power actuator which has pivot connections pivotally securing said actuator at its one end to the rigid internal first structure and at its other end to the flexible part of said secondary outer wall.
Claim 6
Dependent Claim
32 words
A fluid dynamic structure as claimed in claim 1 wherein at least one region of said control surface secondary outer wall is in sliding relationship with part of the primary outer wall.
Claim 7
Dependent Claim
68 words
A structure as claimed in claim 3 wherein said connecting means also comprises a carrier member movably mounted on said rigid internal first structure and to which said internal secondary structure is pivotally attached, and said power means comprises first power means operably connected between said secondary structure and said carrier member and secondary power means operably connected between said carrier member and said rigid internal first structure.
Claim 8
Dependent Claim
17 words
A fluid dynamic structure as claimed in claim 1 wherein the power means comprises an hydraulic jack.
Claim 9
Dependent Claim
70 words
A structure as claimed in claim 1 wherein said internal secondary structure comprises a primary swinging arm supporting a non-flexible region of said control surface secondary outer wall, and a plurality of secondary swinging arms pivotally connected at their one ends by said connecting means to said rigid internal first structure and at their other ends to said at least one flexible region of said control surface secondary outer wall.
Claim 10
Dependent Claim
25 words
A structure as claimed in claim 6 wherein said power means is operably connected between said rigid internal first structure and said primary swinging arm.
Claim 11
Dependent Claim
31 words
A structure as claimed in claim 6 wherein said primary swinging arm is attached at its one end to an extremity of maximum curvature of said control surface secondary outer wall.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |