US3565547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbomachine rotor construction
Assignee: Elliott Turbomachinery Co Inc
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Filing: 1969-02-24
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Granted: 1971-02-23
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Expires: 1989-02-24
Abstract
Abstract A ROTOR WHEEL FOR USE IN A TURBOMACHINE WHEREIN THE CIRCUMFERENTIALLY ARRANGED BLADES ARE PROVIDED WITH EXTERNALLY THREADED SHANK PORTIONS FOR MATING WITH INTERNALLY THREADED OPENINGS PROVIDED WITHIN THE SUPPORTING DISC. INTERMEDIATE PORTIONS OF ALL BUT TWO BLADES HAVE AT LEAST ONE PERIPHERAL SECTION REMOVED WHILE ONE OF THE REMAINING TWO HAS NO REMOVED SECTION AND THE OTHER HAS TWO SHANK SECTIONS REMOVED SO AS TO PERMIT SEQUENTIAL ASSEM- BLY OF THE BLADE IN A CIRCUMFERENTIAL PATH ABOUT THE DISC IN A PREDETERMINED MANNER.
Inventors
- 👤 Raymond E Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:03
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/3023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |