US3179357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable shaped airfoil
Assignee: Individual
•
Filing: 1962-02-27
•
Granted: 1965-04-20
•
Expires: 1982-02-27
Abstract
No abstract record available.
Inventors
- 👤 Donald G Lyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:12
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/38; B64C3/44; B64C3/48; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
AN AIRFOIL ASSEMBLY FOR AIRCRAFT COMPRISING, A RIGID SUPPORTING FRAME, A DEFORMABLE RIB FORMING CONTINUOUS AND VARIABLE AIRFOIL CONTOUR ENCLOSING SAID RIGID SUPPORTING FRAME HAVING LEADING AND TRAILING EDGE PORTIONS DISPLACEABLE RELATIVE TO THE FRAME IN CHORDAL RELATION THERETO, SAID RIB INCLUDING RELATIVELY MOVABLE ENDS WHICH FORM SAID TRAILING EDGE PORTION, ELASTICALLY BIASED LINKAGE MEANS OPERATIVELY CONNECTED TO THE RIB FOR VARIABLY RESISTING DEFORMATION OF THE RIB FROM A SELECTED AIRFOIL CONTOUR, YEILDABLE OPERATING MEANS MOUNTED BY THE FRAME AND OPERATIVELY CONNECTED TO THE LINKAGE MEANS FOR PRESELECTING THE SELECTED AIRFOIL CONTOUR BY CHANGING THE CURVATURE OF THE LEADING EDGE PORTION, SAID OPERATING MEANS INCLUDING MEANS FOR REGULATING THE VARIABLE RESISTANCE TO DEFORMATION OF THE RIB FROM SAID SELECTED AIRFOIL CONTOUR, AND MEANS OPERATIVELY CONNECTED TO THE RIB INTERMEDIATE THE LEADING AND TRAILING EDGE PORTIONS FOR EFFECTING RELATIVE MOVEMENT BETWEEN SAID ENDS OF THE RIB IN RESPONSE TO DEFOMATION THEREOF FROM ONE OF THE SELECTED AIRFOIL CONTOURS.
Claim 2
Dependent Claim
157 words
AN AIRFOIL ASSEMBLY FOR AIRCRAFT COMPRISING, A RIGID SUPPORTING FRAME, A DEFORMABLE RIB FORMING CONTINUOUS AND VARIABLE AIRFOIL CONTOUR ENCLOSING SAID RIGID SUPPORTING FRAME HAVING LEADING AND TRAILING EDGE PORTIONS DISPLACEABLE RELATIVE TO THE FRAME IN CHORDAL RELATION THERETO, SAID RIB INCLUDING RELATIVELY MOVABLE ENDS WHICH FORM SAID TRAILING EDGE PORTION, ELASTICALLY BIASED LINKAGE MEANS OPERATIVELY CONNECTED TO THE RIB FOR VARIABLY RESISTING DEFORMATION OF THE RIB FROM A SELECTED AIRFOIL CONTOUR, YEILDABLE OPERATING MEANS MOUNTED BY THE FRAME AND OPERATIVELY CONNECTED TO THE LINKAGE MEANS FOR PRESELECTING THE SELECTED AIRFOIL CONTOUR BY CHANGING THE CURVATURE OF THE LEADING EDGE PORTION, SAID OPERATING MEANS INCLUDING MEANS FOR REGULATING THE VARIABLE RESISTANCE TO DEFORMATION OF THE RIB FROM SAID SELECTED AIRFOIL CONTOUR, AND MEANS OPERATIVELY CONNECTED TO THE RIB INTERMEDIATE THE LEADING AND TRAILING EDGE PORTIONS FOR EFFECTING RELATIVE MOVEMENT BETWEEN SAID ENDS OF THE RIB IN RESPONSE TO DEFOMATION THEREOF FROM ONE OF THE SELECTED AIRFOIL CONTOURS.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
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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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |