US3533711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooled vane structure for high temperature turbines
Assignee: General Electric Co
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Filing: 1966-02-26
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Granted: 1970-10-13
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Expires: 1986-02-26
Abstract
No abstract record available.
Inventors
- 👤 David M Kercher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:16
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; F05; F05D; F05D2260/00; F05D2260/20; F05D2260/201; F05D2260/60; F05D2260/607
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN AN AXIAL FLOW TURBOMACHINE, A VANE COMPRISING: A RADIALLY EXTENDING VANE BODY HAVING EXTERIOR WALL SURFACES INCLUDING CONVEX AND CONCAVE SIDE WALL SURFACES INTERCONNECTING AXIALLY SPACED LEADING AND TRAILING EDGES, INTERIOR WALL SURFACES FORMING A RADIALLY EXTENDING PASSAGE ADJACENT THE LEADING EDGE, A RADIALLY EXTENDING PASSAGE ADJACENT THE TRAILING EDGE, A FIRST SERPENTINE PASSAGE ADJACENT SAID LEADING EDGE PASSAGE, AND A SECOND SERPENTINE PASSAGE ADJACENT SAID TRAILING EDGE PASSAGE, MEANS FORMING A PLURALITY OF RADIALLY SPACED PASSAGES INTERCONNECTING SAID FIRST SERPENTINE PASSAGE AND SAID LEADING EDGE PASSAGE, MEANS FORMING A PLURALITY OF RADIALLY SPACED PASSAGES INTERCONNECTING SAID SECOND SERPENTINE PASSAGE AND SAID TRAILING EDGE PASSAGE,
Claim 2
Dependent Claim
106 words
IN AN AXIAL FLOW TURBOMACHINE, A VANE COMPRISING: A RADIALLY EXTENDING VANE BODY HAVING EXTERIOR WALL SURFACES INCLUDING CONVEX AND CONCAVE SIDE WALL SURFACES INTERCONNECTING AXIALLY SPACED LEADING AND TRAILING EDGES, INTERIOR WALL SURFACES FORMING A RADIALLY EXTENDING PASSAGE ADJACENT THE LEADING EDGE, A RADIALLY EXTENDING PASSAGE ADJACENT THE TRAILING EDGE, A FIRST SERPENTINE PASSAGE ADJACENT SAID LEADING EDGE PASSAGE, AND A SECOND SERPENTINE PASSAGE ADJACENT SAID TRAILING EDGE PASSAGE, MEANS FORMING A PLURALITY OF RADIALLY SPACED PASSAGES INTERCONNECTING SAID FIRST SERPENTINE PASSAGE AND SAID LEADING EDGE PASSAGE, MEANS FORMING A PLURALITY OF RADIALLY SPACED PASSAGES INTERCONNECTING SAID SECOND SERPENTINE PASSAGE AND SAID TRAILING EDGE PASSAGE,
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) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |