US3294365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade for use in a fluid-flow machine
Assignee: Rolls Royce PLC
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Filing: 1965-11-24
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Granted: 1966-12-27
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Expires: 1985-11-24
Abstract
No abstract record available.
Inventors
- 👤 Wilde Geoffrey Light
- 👤 Poucher Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:08
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/3007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A ROTOR FOR USE IN A GAS TURBINE ENGINE COMPRISING: A ROW OF ANGULARLY SPACED APART BLADES, EACH OF SAID BLADES HAVING A ROOT PORTION, A SHANK PORTION, AND AN AEROFOIL-SHAPED PORTION, SAID SHANK PORTION INTERCONNECTING THE ROOT PORTION WITH SAID AEROFOIL-SHAPED PORTION AND SAID AEROFOIL-SHAPED PORTION AND SAID ROOT PORTION OF EACH BLADE HAVING SUBSTANTIALLY RADIALLY EXTENDING CENTERLINES AXIALLY DISPLACED FROM EACH OTHER; AND A PLURALITY OF AXIALLY SPACED PARTS IN WHICH THE ROOT PORTION OF SAID BLADES ARE MOUNTED, SAID BLADES BEING ARRANGED SO THAT ALL OF THE AEROFOIL-SHAPED PORTIONS TRAVERSE THE SAME PATH WHEN THE ROTOR IS ROTATED.
Claim 2
Dependent Claim
101 words
A ROTOR FOR USE IN A GAS TURBINE ENGINE COMPRISING: A ROW OF ANGULARLY SPACED APART BLADES, EACH OF SAID BLADES HAVING A ROOT PORTION, A SHANK PORTION, AND AN AEROFOIL-SHAPED PORTION, SAID SHANK PORTION INTERCONNECTING THE ROOT PORTION WITH SAID AEROFOIL-SHAPED PORTION AND SAID AEROFOIL-SHAPED PORTION AND SAID ROOT PORTION OF EACH BLADE HAVING SUBSTANTIALLY RADIALLY EXTENDING CENTERLINES AXIALLY DISPLACED FROM EACH OTHER; AND A PLURALITY OF AXIALLY SPACED PARTS IN WHICH THE ROOT PORTION OF SAID BLADES ARE MOUNTED, SAID BLADES BEING ARRANGED SO THAT ALL OF THE AEROFOIL-SHAPED PORTIONS TRAVERSE THE SAME PATH WHEN THE ROTOR IS ROTATED.
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |