US3623318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine nozzle cooling
Assignee: Avco Corp
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Filing: 1970-06-29
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Granted: 1971-11-30
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Expires: 1990-06-29
Abstract
Abstract THE DISCLOSURE ILLUSTRATES AN AIR-COOLED NOZZLE ASSEMBLY FOR USE WITH A CENTRIPETAL TURBINE. A SIMIPLIFED ONE-PIECE INSERT BAFFLE COMPRISE FOLDED SHEETS DEFINING A SLOT AT THEIR FREE ENDS TO PROVIDE IMPINGEMENT COOLING OF AN OPENING THROUGH A SERIES OF VANES THAT MAKE UP THE NOZZLE ASSEMBLY. THE BAFFLE WITH POSITIONING WASHERS DEFINES A THROUGH PASSAGE FOR THE NOZZLE VANES WHICH IS SO POSITIONED THAT AIR PASSES THROUGH THE NOZZLES AND COOLS A PORTION OF A DUCT CONNECTED TO THE TURBINE NOZZLE ASSEMBLY.
Inventors
- 👤 Wayne C Shank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:43
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; F01D5/188; F01D5/189
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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |