Patent US3142475A successfully refreshed from Google Patents.
US3142475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stator assembly
Assignee: General Electric Co
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Filing: 1962-12-28
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Granted: 1964-07-28
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Expires: 1982-12-28
Abstract
No abstract record available.
Inventors
- 👤 Bobo Melvin
- 👤 Martin Jack Reid
- 👤 Smuland Robert John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:27
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/04; F01D9/041; F01D9/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
FOR USE IN A GAS TURBINE ENGINE HAVING A CASING AND A TURBINE WHEEL ROTATABLY MOUNTED ABOUT AN AXIS THEREIN, A SEGMENTED ANNULAR NOZZLE DIAPHRAGM FOR SUPPLYING HOT GASES TO SAID TURBINE WHEEL, SAID DIAPHRAGM COMPRISED OF A PLURALITY OF ARCUATE DIAPHRAGM SEGMENTS EACH HAVING AN ARCUATE INNER SHROUD MEMBER, AN ARCUATE OUTER SHROUD MEMBER, A PLURALITY OF VANES RADIALLY POSITIONED BETWEEN SAID SHROUD MEMBERS AND SECURED THERETO, SAID VANES BEING EQUALLY SPACED CIRCUMFERENTIALLY SO AS TO DEFINE EQUAL FLOW AREAS BETWEEN ADJACENT ONES OF SAID VANES, A FIRST ARCUATE MOUNTING FLANGE EXTENDING RADIALLY INWARD FROM SAID INNER SHROUD MEMBER, AND A SECOND ARCUATE MOUNTING FLANGE EXTENDING RADIALLY OUTWARD FROM SAID OUTER SHROUD MEMBER, SAID INNER AND OUTER SHROUD MEMBERS EXTENDING CIRCUMFERENTIALLY BEYOND THE END VANES OF SAID SEGMENTS, THE CIRCUMFERENTIAL LENGTHS OF SAID EXTENSION BEING SUCH THAT THE FLOW AREA BETWEEN THE END VANES OF TWO ABUTTING SEGMENTS IS EQUAL TO THE FLOW AREAS BETWEEN ADJACENT VANES OF EACH OF SAID SEGMENTS AT ANY TEMPERATURE, FIRST SUPPORT MEANS ENGAGING SAID FIRST AND SECOND MOUNTING FLANGE OF EACH OF SAID SEGMENTS TO
Claim 2
Dependent Claim
182 words
FOR USE IN A GAS TURBINE ENGINE HAVING A CASING AND A TURBINE WHEEL ROTATABLY MOUNTED ABOUT AN AXIS THEREIN, A SEGMENTED ANNULAR NOZZLE DIAPHRAGM FOR SUPPLYING HOT GASES TO SAID TURBINE WHEEL, SAID DIAPHRAGM COMPRISED OF A PLURALITY OF ARCUATE DIAPHRAGM SEGMENTS EACH HAVING AN ARCUATE INNER SHROUD MEMBER, AN ARCUATE OUTER SHROUD MEMBER, A PLURALITY OF VANES RADIALLY POSITIONED BETWEEN SAID SHROUD MEMBERS AND SECURED THERETO, SAID VANES BEING EQUALLY SPACED CIRCUMFERENTIALLY SO AS TO DEFINE EQUAL FLOW AREAS BETWEEN ADJACENT ONES OF SAID VANES, A FIRST ARCUATE MOUNTING FLANGE EXTENDING RADIALLY INWARD FROM SAID INNER SHROUD MEMBER, AND A SECOND ARCUATE MOUNTING FLANGE EXTENDING RADIALLY OUTWARD FROM SAID OUTER SHROUD MEMBER, SAID INNER AND OUTER SHROUD MEMBERS EXTENDING CIRCUMFERENTIALLY BEYOND THE END VANES OF SAID SEGMENTS, THE CIRCUMFERENTIAL LENGTHS OF SAID EXTENSION BEING SUCH THAT THE FLOW AREA BETWEEN THE END VANES OF TWO ABUTTING SEGMENTS IS EQUAL TO THE FLOW AREAS BETWEEN ADJACENT VANES OF EACH OF SAID SEGMENTS AT ANY TEMPERATURE, FIRST SUPPORT MEANS ENGAGING SAID FIRST AND SECOND MOUNTING FLANGE OF EACH OF SAID SEGMENTS TO
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |