Patent US3309058A successfully refreshed from Google Patents.
US3309058A
Expired / Lapsed
US
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Bladed rotor
Assignee: Rolls Royce PLC
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Filing: 1966-06-08
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Granted: 1967-03-14
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Expires: 1986-06-08
Abstract
No abstract record available.
Inventors
- 👤 Blackhurst Robert Vaughan
- 👤 Harrison Harold James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:58
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/32; F01D5/326; F01D11/00; F01D11/005; F01D11/006; F01D11/008; F01D5/3007; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A ROTOR COMPRISING A ROTOR DISC HAVING A PERIPHERAL ANNULAR GROOVE AND A PLURALITY OF ANGULARLY SPACED APARAT SLOTS WHICH INTERSECT SAID GROOVE AND EACH OF WHICH EXTENDS RADIALLY INWARDLY FROM THE PERIPHERY OF THE ROTOR DISC; A PLURALITY OF ANGULARLY SPACED APART AEROFOIL-SHAPED BLADES EACH OF WHICH HAS A ROOT PORTION WHICH IS LOCATEDD IN ONE OF SAID SLOTS, EACH OF SAID SLOTS HAVING WALLS WHICH SLIDABLY ENGAGE THE RESPECTIVE ROOT PORTION AND WHICH PREVENT BOTH ANGULAR AND RADIAL MOVEMENT OF THE RESPECTIVE BLADE WITH RESPECT TO THE ROTOR DISC; A PLURALITY OF SPACER MEMBERS EACH OF WHICH IS MOUNTED AND RETAINED IN SAID GROOVE AND EXTENDS BETWEEN THE ROOT PORTIONS OF ADJA-
Claim 2
Dependent Claim
114 words
A ROTOR COMPRISING A ROTOR DISC HAVING A PERIPHERAL ANNULAR GROOVE AND A PLURALITY OF ANGULARLY SPACED APARAT SLOTS WHICH INTERSECT SAID GROOVE AND EACH OF WHICH EXTENDS RADIALLY INWARDLY FROM THE PERIPHERY OF THE ROTOR DISC; A PLURALITY OF ANGULARLY SPACED APART AEROFOIL-SHAPED BLADES EACH OF WHICH HAS A ROOT PORTION WHICH IS LOCATEDD IN ONE OF SAID SLOTS, EACH OF SAID SLOTS HAVING WALLS WHICH SLIDABLY ENGAGE THE RESPECTIVE ROOT PORTION AND WHICH PREVENT BOTH ANGULAR AND RADIAL MOVEMENT OF THE RESPECTIVE BLADE WITH RESPECT TO THE ROTOR DISC; A PLURALITY OF SPACER MEMBERS EACH OF WHICH IS MOUNTED AND RETAINED IN SAID GROOVE AND EXTENDS BETWEEN THE ROOT PORTIONS OF ADJA-
References Cited (Backward Citations)
US2751189A
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CH317345A
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US2843356A
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US2949278A
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US2994507A
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US3219263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |