US3561886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine bucket erosion shield attachment
Assignee: General Electric Co
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Filing: 1969-02-07
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Granted: 1971-02-09
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Expires: 1989-02-07
Abstract
Abstract AN EROSION RESISTANT SHIELD IS ATTACHED TO THE LEADING EDGE OF A STEAM TURBINE BUCKET AT THE RADIALLY OUTER PORTION THEREOF BY MEANS OF AN INTERMEDIATE SHIM USING SELECTED MATERIALS TO PROVIDE A DUCTILE COMPOSITE WELDED STRUCTURE. CONTROLLED REDUCTION OF STRESS AT THE POINT WHERE THE SHIELD COMMENCES ON THE BUCKET IS ACCOMPLISHED BY LOCAL ENLARGEMENT OF THE BUCKET CROSS-SECTION.
Inventors
- 👤 Charles H Kreischer Jr
- 👤 Victor S Musick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:42
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/28
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |