US3307775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressors for gas turbine jet propulsion engines
Assignee: Rolls Royce PLC
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Filing: 1965-08-25
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Granted: 1967-03-07
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Expires: 1985-08-25
Abstract
No abstract record available.
Inventors
- 👤 Petrie James Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:57
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/04; F01D9/042; F01D5/00; F01D5/12; F01D5/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN AXIAL FLOW COMPRESSOR FOR A GAS TURBINE JET PROPULSION ENGINE COMPRISING AN EXTERNAL CASING, A ROTOR ROTATABLY MOUNTED IN SAID CASING, FIRST STAGE STATOR BLADES HAVING RADIALLY INNER AND OUTER ENDS, THE RADIALLY OUTER ENDS BEING ATTACHED TO THE CASING, A COMMON ANNULAR ABUTMENT INTERCONNECTING SAID RADIALLY INNER ENDS, AND A FURTHER ABUTMENT ROTATABLY MOUNTED ON SAID ROTOR AND DISPOSED ADJACENT SAID COMMON ANNULAR ABUTMENT WHEREBY AXIAL MOVEMENT OF SAID STATOR BLADES IS RESTRICTED.
Claim 2
Dependent Claim
75 words
AN AXIAL FLOW COMPRESSOR FOR A GAS TURBINE JET PROPULSION ENGINE COMPRISING AN EXTERNAL CASING, A ROTOR ROTATABLY MOUNTED IN SAID CASING, FIRST STAGE STATOR BLADES HAVING RADIALLY INNER AND OUTER ENDS, THE RADIALLY OUTER ENDS BEING ATTACHED TO THE CASING, A COMMON ANNULAR ABUTMENT INTERCONNECTING SAID RADIALLY INNER ENDS, AND A FURTHER ABUTMENT ROTATABLY MOUNTED ON SAID ROTOR AND DISPOSED ADJACENT SAID COMMON ANNULAR ABUTMENT WHEREBY AXIAL MOVEMENT OF SAID STATOR BLADES IS RESTRICTED.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |