US3164367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine blade
Assignee: General Electric Co
•
Filing: 1962-11-21
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Granted: 1965-01-05
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Expires: 1982-11-21
Abstract
No abstract record available.
Inventors
- 👤 Henry E Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:05
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/3007; F01D5/12; F01D5/14; F01D5/18; F01D5/181; F01D5/187; F05; F05D; F05D2250/00; F05D2250/20; F05D2250/25; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A ROTOR BLADE FOR A HOT GAS TURBOMACHINE: AN AIRFOIL PORTION HAVING LEADING AND TRAILING EDGES AND A TIP PORTION; A BLADE ROOT PORTION HAVING A CAVITY SUBSTANTIALLY ENCLOSED THEREBY, SAID CAVITY HAVING AN OPENING THEREIN FOR THE SUPPLY OF A FIRST HEAT EXCHANGE MEDIUM THERETO; A FIRST PLURALITY OF PASSAGES IN SAID AIRFOIL PORTION IN FLOW COMMUNICATION WITH SAID CAVITY; A SECOND PLURALITY OF PASSAGES LOCATED IN SAID LEADING AND TRAILING EDGES OF SAID AIRFOIL PORTION; AND HEAT EXCHANGER MEANS IN SAID CAVITY, SAID HEAT EXCHANGER MEANS CONTAINING A SECOND HEAT EXCHANGE MEDIUM IN FLOW COMMUNICATION WITH SAID SECOND PLURALITY OF PASSAGES, WHEREIN AT LEAST A PORTION OF SAID FIRST HEAT EXCHANGE MEDIUM IS IN A HEAT EXCHANGE RE-
Claim 2
Dependent Claim
121 words
IN A ROTOR BLADE FOR A HOT GAS TURBOMACHINE: AN AIRFOIL PORTION HAVING LEADING AND TRAILING EDGES AND A TIP PORTION; A BLADE ROOT PORTION HAVING A CAVITY SUBSTANTIALLY ENCLOSED THEREBY, SAID CAVITY HAVING AN OPENING THEREIN FOR THE SUPPLY OF A FIRST HEAT EXCHANGE MEDIUM THERETO; A FIRST PLURALITY OF PASSAGES IN SAID AIRFOIL PORTION IN FLOW COMMUNICATION WITH SAID CAVITY; A SECOND PLURALITY OF PASSAGES LOCATED IN SAID LEADING AND TRAILING EDGES OF SAID AIRFOIL PORTION; AND HEAT EXCHANGER MEANS IN SAID CAVITY, SAID HEAT EXCHANGER MEANS CONTAINING A SECOND HEAT EXCHANGE MEDIUM IN FLOW COMMUNICATION WITH SAID SECOND PLURALITY OF PASSAGES, WHEREIN AT LEAST A PORTION OF SAID FIRST HEAT EXCHANGE MEDIUM IS IN A HEAT EXCHANGE RE-
References Cited (Backward Citations)
FR999820A
Cited
GB610737A
Cited
US2699917A
Cited
US2565594A
Cited
US2780435A
Cited
US2888241A
Cited
US3014692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-05 | 1968-07-06 | 1969-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-05 | 1972-07-06 | 1973-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-05 | 1976-07-06 | 1977-01-05 | $7700.00 | Window Closed / Lapsed |