Patent US3616508A successfully refreshed from Google Patents.
US3616508A
Expired / Lapsed
US
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Method of making compressor or turbine rotor or stator blades
Assignee: Rolls Royce PLC
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Filing: 1969-01-27
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Granted: 1971-11-02
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Expires: 1989-01-27
Abstract
Abstract A METHOD OF MAKING AN ANNULUS OF BLADES FOR A GAS TURBINE ENGINE IS PROPOSED IN WHICH BLADE ROW IS FORMED FROM AN ANNULAR ARRAY OF PIECES, EACH COMPRISING A BLADE FLANK, AN INTERCONNECTING PORTION, AND AN OPPOSING FLANK OF AN ADJACENT BLADE. THE PIECES ARE MADE FROM FIBER REINFORCED MATERIAL AND PREFERRED METHOD OF MANUFACTURE OF THE PIECES USING FILAMENT WINDING TECHNIQUES ARE UTILIZED IN MAKING THE INDIVIDUAL PIECES.
Inventors
- 👤 John Stanley Wallett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:22
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/28; F01D5/282; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49321
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |