US3360240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vane operating mechanism
Assignee: Rolls Royce PLC
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Filing: 1966-12-19
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Granted: 1967-12-26
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Expires: 1986-12-19
Abstract
No abstract record available.
Inventors
- 👤 Williamson Douglas Herbert
- 👤 Petrie James Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:23
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D17/162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A VANE OPERATING MECHANISM COMPRISING: AXIALLY SPACED RINGS ROTATABLE IN OPPOSITE DIRECTIONS ABOUT ARRANGED ABOUT SAID AXIS; A LEVER FIXEDLY SECURED TO EACH OF SAID VANES FOR EFFECTING PIVOTAL MOVEMENT THEREOF; BALL-SHAPED PORTIONS ON OPPOSITE ENDS OF EACH OF SAID LEVERS, EACH OF SAID BALL-SHAPED PORTIONS HAVING AN AXIS COINCIDING WITH THE LONGITUDINAL AXIS OF THE RESPECTIVE LEVER TO WHIHC IT IS ATTACHED; PART-SPHERICAL RECESSES IN FACING SURFACES OF SAID RINGS FOR ROTATABLY RECEIVING THE RESPECTIVE BALL-SHAPED PORTIONS ON THE OPPOSITE ENDS OF THE RESPECTIVE LEVERS; AND MEANS FOR ROTTING SAID RINGS SIMULTANEOUSLY IN OPPOSITE DIRECTIONS TO APPLY COUPLES TO THE LEVERS SO AS TO EFFECT PIVOTAL MOVEMENT OF THE VANES WITHOUT SUBJECTING SAID BALL-SHAPED PORTIONS TO A BENDING MOVEMENT ABOUT THE LONGITUDINAL AXIS OF THE LEVERS.
Claim 2
Dependent Claim
127 words
A VANE OPERATING MECHANISM COMPRISING: AXIALLY SPACED RINGS ROTATABLE IN OPPOSITE DIRECTIONS ABOUT ARRANGED ABOUT SAID AXIS; A LEVER FIXEDLY SECURED TO EACH OF SAID VANES FOR EFFECTING PIVOTAL MOVEMENT THEREOF; BALL-SHAPED PORTIONS ON OPPOSITE ENDS OF EACH OF SAID LEVERS, EACH OF SAID BALL-SHAPED PORTIONS HAVING AN AXIS COINCIDING WITH THE LONGITUDINAL AXIS OF THE RESPECTIVE LEVER TO WHIHC IT IS ATTACHED; PART-SPHERICAL RECESSES IN FACING SURFACES OF SAID RINGS FOR ROTATABLY RECEIVING THE RESPECTIVE BALL-SHAPED PORTIONS ON THE OPPOSITE ENDS OF THE RESPECTIVE LEVERS; AND MEANS FOR ROTTING SAID RINGS SIMULTANEOUSLY IN OPPOSITE DIRECTIONS TO APPLY COUPLES TO THE LEVERS SO AS TO EFFECT PIVOTAL MOVEMENT OF THE VANES WITHOUT SUBJECTING SAID BALL-SHAPED PORTIONS TO A BENDING MOVEMENT ABOUT THE LONGITUDINAL AXIS OF THE LEVERS.
References Cited (Backward Citations)
US2455251A
Cited
DE1136350B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |