US3122823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine wheel and method of making same
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1959-04-22
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Granted: 1964-03-03
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Expires: 1979-04-22
Abstract
No abstract record available.
Inventors
- 👤 John L Lazar
- 👤 Richard A Whitaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:31
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/006; B21; B21K; B21K1/00; B21K1/28; B21K1/36; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A METHOD OF FORMING TURBINE WHEELS AND THE LIKE WHICH COMPRISES: SUPPORTING A PLURALITY OF BLADE SHAPING MEMBERS AGAINST A SUPPORTING SURFACE TO PROVIDE A PLURALITY OF CIRCUMFERENTIALLY SPACED BLADE SHAPING CAVITIES AND A FEMALE DIE MEMBER CAVITY WITH OPEN ENDS OF THE BLADE SHAPING CAVITIES FACING THE FEMALE DIE MEMBER CAVITY, INSERTING A METAL BLANK INTO THE FEMALE DIE CAVITY SPACED FROM THE BLADE SHAPING CAVITIES AND IN CONTACTING RELATIONSHIP WITH THE SIDE WALLS OF THE SHAPING MEMBERS TO COVER THE OPEN ENDS OF THE BLADE SHAPING CAVITIES, APPLYING FORGING PRESSURE TO THE END PORTION OF THE METAL BLANK TO MOVE THE PERIPHERAL PORTION OF THE METAL BLANK RADIALLY OUTWARDLY INTO THE BLADE SHAPING CAVITIES TO FILL THE BLADE SHAPING CAVITIES TO ASSUME THE SHAPE OF THE CAVITIES AND THEREBY FORM A PLURALITY OF TURBINE BLADES INTEGRAL WITH A SUPPORTING STRUCTURE THEREFOR.
Claim 2
Independent Claim
143 words
A METHOD OF FORMING TURBINE WHEELS AND THE LIKE WHICH COMPRISES: SUPPORTING A PLURALITY OF BLADE SHAPING MEMBERS AGAINST A SUPPORTING SURFACE TO PROVIDE A PLURALITY OF CIRCUMFERENTIALLY SPACED BLADE SHAPING CAVITIES AND A FEMALE DIE MEMBER CAVITY WITH OPEN ENDS OF THE BLADE SHAPING CAVITIES FACING THE FEMALE DIE MEMBER CAVITY, INSERTING A METAL BLANK INTO THE FEMALE DIE CAVITY SPACED FROM THE BLADE SHAPING CAVITIES AND IN CONTACTING RELATIONSHIP WITH THE SIDE WALLS OF THE SHAPING MEMBERS TO COVER THE OPEN ENDS OF THE BLADE SHAPING CAVITIES, APPLYING FORGING PRESSURE TO THE END PORTION OF THE METAL BLANK TO MOVE THE PERIPHERAL PORTION OF THE METAL BLANK RADIALLY OUTWARDLY INTO THE BLADE SHAPING CAVITIES TO FILL THE BLADE SHAPING CAVITIES TO ASSUME THE SHAPE OF THE CAVITIES AND THEREBY FORM A PLURALITY OF TURBINE BLADES INTEGRAL WITH A SUPPORTING STRUCTURE THEREFOR.
References Cited (Backward Citations)
CA472601A
Cited
US1150394A
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US1854411A
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US2389876A
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US2709568A
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US2755926A
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US2757901A
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US2835960A
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US2950817A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |