Patent US3561882A successfully refreshed from Google Patents.
US3561882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine blade cooling
Assignee: Westinghouse Electric Corp
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Filing: 1952-07-15
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Granted: 1971-02-09
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Expires: 1972-07-15
Abstract
Abstract 1. THE GAS TURBINE BLADE COOLING, A ROW OF NOZZLE BLADES FOLLOWED BY A ROW OF MOVING BLADES, THE TAIL PORTIONS OF THE NOZZLE BLADES HAVING LONGTUDINAL PASSAGES THROUGH THEREIN, ADAPTED TO BE SUPPLIED WITH LIQUID AND HAVING PORTS THROUGH WHICH LIQUID MAY SPRAYED INTO THE NOZZLE PASSAGES FROM THE TAIL PORTION PASSAGES, AND EACH OF SAID NOZZLE BLADES BEING HOLLOW BETWEEN THE INLET EDGE THEREOF AND THE TAIL PORTION TO REDUCE THE HEAT CONDUCTIVE AREA BETWEEN THE INLET EDGE AND THE TAIL PORTION.
Inventors
- 👤 Edward V Somers
- 👤 Edward Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:11
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/185
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |