Patent US3196526A successfully refreshed from Google Patents.
US3196526A
Expired / Lapsed
US
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Method of making turbine blades
Assignee: Bristol Siddeley Engines Ltd
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Filing: 1962-06-12
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Granted: 1965-07-27
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Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Amos Frederick Walter
- 👤 Wheatley Frank Thomas
- 👤 Wickens Leonard William
- 👤 Mangles Arthur William Steward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:56
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/78; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336; Y10T29/49339
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD OF MAKING A HOLLOW METAL BLADE FOR AN ELASTIC FLUID MACHINE INCLUDING THE STEPS OF FORMING A JOINTLESS METAL TUBE FROM BLANK FLAT SHEET MATERIAL, FORMING THE END OF THE LENGTH OF THE TUBE INTO A BLADE PLATFORM, FORMING THE OTHER PART OF THE LENGTH OF THE TUBE INTO A BLADE SECTION, AND SWAGING THE EDGE OF THE PLATFORM OVER A PART OF A SEPARATELY MADE METAL BLADE ROOT OF FINISHED SHAPE SUCH THAT THE REST OF THE BLADE ROOT MAY BE ATTACHED TO A TURBINE WHEEL.
Claim 2
Independent Claim
89 words
A METHOD OF MAKING A HOLLOW METAL BLADE FOR AN ELASTIC FLUID MACHINE INCLUDING THE STEPS OF FORMING A JOINTLESS METAL TUBE FROM BLANK FLAT SHEET MATERIAL, FORMING THE END OF THE LENGTH OF THE TUBE INTO A BLADE PLATFORM, FORMING THE OTHER PART OF THE LENGTH OF THE TUBE INTO A BLADE SECTION, AND SWAGING THE EDGE OF THE PLATFORM OVER A PART OF A SEPARATELY MADE METAL BLADE ROOT OF FINISHED SHAPE SUCH THAT THE REST OF THE BLADE ROOT MAY BE ATTACHED TO A TURBINE WHEEL.
References Cited (Backward Citations)
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US2823894A
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US2979809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |