Patent US2039975A successfully refreshed from Google Patents.
US3095010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine engine having adjustable guide vanes
Assignee: Rolls Royce PLC
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Filing: 1960-04-21
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Granted: 1963-06-25
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Expires: 1980-04-21
Abstract
No abstract record available.
Inventors
- 👤 Mclean Donald
- 👤 Kent Nelson Hector
- 👤 Steel Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:19
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D17/162; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/8741; Y10T137/87442; Y10T137/87458; Y10T74/00; Y10T74/20; Y10T74/20012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN A VANE ACTUATING MECHANISM FOR USE IN A GAS TURBINE ENGINE OF A TYPE HAVING A PLURALITY OF PIVOTALLY ADJUSTABLE, ANGULARLY SPACED, RADIALLY EXTENDING GUIDE VANES SUPPORTED IN AN ANNULAR GAS DUCT BETWEEN COAXIAL INNER AND OUTER CASINGS OF THE ENGINE, SAID VANE ACTUATING MECHANISM COMPRISING: A ROTATABLY MOUNTED VANE OPERATING RING DISPOSED WITHIN THE INNER CASING AND ROTATABLE ABOUT THE AXIS OF THE DUCT FOR EFFECTING PIVOTING MOVEMENT TO THE GUIDE VANES ABOUT THEIR RADIAL AXES, A LEVER PIVOTALLY MOUNTED ABOUT AN AXIS EXTENDING RADIALLY RELATIVE TO THE AXIS OF THE DUCT, A SUBSTANTIALLY CYLINDRICAL BUSHING MOUNTED IN SAID VANE OPERATING RING WITH ITS AXIS EXTENDING
Claim 2
Dependent Claim
108 words
IN A VANE ACTUATING MECHANISM FOR USE IN A GAS TURBINE ENGINE OF A TYPE HAVING A PLURALITY OF PIVOTALLY ADJUSTABLE, ANGULARLY SPACED, RADIALLY EXTENDING GUIDE VANES SUPPORTED IN AN ANNULAR GAS DUCT BETWEEN COAXIAL INNER AND OUTER CASINGS OF THE ENGINE, SAID VANE ACTUATING MECHANISM COMPRISING: A ROTATABLY MOUNTED VANE OPERATING RING DISPOSED WITHIN THE INNER CASING AND ROTATABLE ABOUT THE AXIS OF THE DUCT FOR EFFECTING PIVOTING MOVEMENT TO THE GUIDE VANES ABOUT THEIR RADIAL AXES, A LEVER PIVOTALLY MOUNTED ABOUT AN AXIS EXTENDING RADIALLY RELATIVE TO THE AXIS OF THE DUCT, A SUBSTANTIALLY CYLINDRICAL BUSHING MOUNTED IN SAID VANE OPERATING RING WITH ITS AXIS EXTENDING
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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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |