Patent US3567337A successfully refreshed from Google Patents.
US3567337A
Expired / Lapsed
US
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Rotor for turboengines
Assignee: Sulzer AG
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Filing: 1968-11-27
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Granted: 1971-03-02
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Expires: 1988-11-27
Abstract
Abstract THE ROTOR BODY IS PROVIDED WITH A CONTINUOUS UNINTERRUPTED SLOT WHICH RECEIVES THE BLADES IN COMPLEMENTARY LOCKING MANNER. SPACERS FORMED OF INDIVIDUAL PLATES SPACE THE BLADES AND INTERMEDIARY LOCKING LAYERS FILL IN THE LAST SPACES TO LOCK THE BLADES IN PLACE. THE BLADES ARE ALSO SPRING BIASED AGAINST THE LATERAL SURFACES OF THE SLOT.
Inventors
- 👤 Ferdinand Zerlauth Herb Flegel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:51
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/32; F01D5/3023; F01D5/303; F01D5/3038
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |