Patent US3146992A successfully refreshed from Google Patents.
US3146992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine shroud support structure
Assignee: General Electric Co
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Filing: 1962-12-10
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Granted: 1964-09-01
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Expires: 1982-12-10
Abstract
No abstract record available.
Inventors
- 👤 Farrell William Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:07
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/44; F16J15/445; F01; F01D; F01D11/00; F01D11/08; F01D11/14; F01D11/16; F01D11/18; F05; F05D; F05D2300/00; F05D2300/50; F05D2300/502; F05D2300/5021; F05D2300/50212; Y; Y10; Y10S; Y10S277/00; Y10S277/931; Y10S277/932
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A TURBOMACHINE, A CYLINDRICAL CASING, A TURBINE WHEEL ROTATABLY MOUNTED IN SAID CASING, A ROW OF RADIALLY EXTENDING TURBINE BUCKETS PERIPHERALLY MOUNTED ABOUT SAID TURBINE WHEEL, A SHROUD RING CIRCUMFERENTIALLY SURROUNDING SAID ROW OF TURBINE BUCKETS IN SPACED RELATION THERETO, SAID SHROD RING COMPRISED OF A PLURALITY OF SEPARATE CIRCUMFERENTIALLY EXTENDING ARCUATE SEGMENTS, A PLURALITY OF BIMETALLIC SUPPORT STRIPS MOUNTED IN SAID CASING, SAID BIMETALLIC SUPPORT STRIPS EACH COMPRISED OF TWO LAYERS HAVING DIFFERENT COEFFICIENTS OF THERMAL EXPANSION, MEANS CONNECTING THE CENTER PORTION OF EACH OF SAID BIMETALLIC SUPPORT STRIPS TO A RESPECTIVE ONE OF SAID ARCUATE SHROUD SEGMENTS, SAID BIMETALLIC SUPPORT STRIPS DISPOSED SO AS TO DEFLECT WITH TEMPERATURE CHANGES TO MOVE SAID ARCUATE SHROUD SEGMENTS INWARDLY RELATIVE TO SAID CASING WITH INCREASING TURBINE OPERATING TEMPERATURE AND OUTWARDLY WITH DECREASING TEMPERATURE.
Claim 2
Dependent Claim
133 words
IN A TURBOMACHINE, A CYLINDRICAL CASING, A TURBINE WHEEL ROTATABLY MOUNTED IN SAID CASING, A ROW OF RADIALLY EXTENDING TURBINE BUCKETS PERIPHERALLY MOUNTED ABOUT SAID TURBINE WHEEL, A SHROUD RING CIRCUMFERENTIALLY SURROUNDING SAID ROW OF TURBINE BUCKETS IN SPACED RELATION THERETO, SAID SHROD RING COMPRISED OF A PLURALITY OF SEPARATE CIRCUMFERENTIALLY EXTENDING ARCUATE SEGMENTS, A PLURALITY OF BIMETALLIC SUPPORT STRIPS MOUNTED IN SAID CASING, SAID BIMETALLIC SUPPORT STRIPS EACH COMPRISED OF TWO LAYERS HAVING DIFFERENT COEFFICIENTS OF THERMAL EXPANSION, MEANS CONNECTING THE CENTER PORTION OF EACH OF SAID BIMETALLIC SUPPORT STRIPS TO A RESPECTIVE ONE OF SAID ARCUATE SHROUD SEGMENTS, SAID BIMETALLIC SUPPORT STRIPS DISPOSED SO AS TO DEFLECT WITH TEMPERATURE CHANGES TO MOVE SAID ARCUATE SHROUD SEGMENTS INWARDLY RELATIVE TO SAID CASING WITH INCREASING TURBINE OPERATING TEMPERATURE AND OUTWARDLY WITH DECREASING TEMPERATURE.
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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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |