Patent US2720479A successfully refreshed from Google Patents.
US2824359A
Expired / Lapsed
US
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Fabricated gas turbine structures
Assignee: Huntington Alloys Corp
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Filing: 1953-05-20
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Granted: 1958-02-25
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Expires: 1973-05-20
Abstract
No abstract record available.
Inventors
- 👤 Rhodes Edwin Clements
- 👤 Rhys David Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:50
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/28; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12778; Y10T428/12806; Y10T428/12826; Y10T428/12847; Y10T428/12861; Y10T428/12875; Y10T428/12931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
AN IMPROVED FABRICATED HOLLOW GAS TURBINE BLADE MADE OF A PLURALITY OF STRUCTURAL MEMBERS OF A HEAT RESISTANT CHROMIUM-CONTAINING ALLOY SELECTED FROM THE GROUP CONSISTING OF NICKEL-CHROMIUM AND NICKEL-CHROMIUM-IRON ALLOYS UNITED BY AT LEAST ONE SOLDER JOINT AND ADAPTED TO BE SUBJECTED TO CORROSIVE CONDITIONS PREVAILING IN GAS TURBINES AT HIGH SERVICE TEMPERATURES OF THE ORDER OF ABOUT 600*C. TO 850*C. AND CHARACTERIZED WITHIN SAID TEMPERATURE RANGE BY HIGH MECHANICAL STRENGTH AND HIGH RESISTANCE TO CREEP, TO OXIDATION AND TO SCALING, SAID SOLDER JOINT COMPRISING A PALLADIUM-BASE JOINING ALLOY CONTAINING ABOUT 6.5% TO 7.9% ALUMINUM AND THE BALANCE ESSENTIALLY PALLADIUM, SAID JOINING ALLOY HAVING A MELTING TEMPERATURE OF NOT LESS THAN ABOUT 900*C. NOR MORE THAN ABOUT 1250*C.
Claim 2
Dependent Claim
118 words
AN IMPROVED FABRICATED HOLLOW GAS TURBINE BLADE MADE OF A PLURALITY OF STRUCTURAL MEMBERS OF A HEAT RESISTANT CHROMIUM-CONTAINING ALLOY SELECTED FROM THE GROUP CONSISTING OF NICKEL-CHROMIUM AND NICKEL-CHROMIUM-IRON ALLOYS UNITED BY AT LEAST ONE SOLDER JOINT AND ADAPTED TO BE SUBJECTED TO CORROSIVE CONDITIONS PREVAILING IN GAS TURBINES AT HIGH SERVICE TEMPERATURES OF THE ORDER OF ABOUT 600*C. TO 850*C. AND CHARACTERIZED WITHIN SAID TEMPERATURE RANGE BY HIGH MECHANICAL STRENGTH AND HIGH RESISTANCE TO CREEP, TO OXIDATION AND TO SCALING, SAID SOLDER JOINT COMPRISING A PALLADIUM-BASE JOINING ALLOY CONTAINING ABOUT 6.5% TO 7.9% ALUMINUM AND THE BALANCE ESSENTIALLY PALLADIUM, SAID JOINING ALLOY HAVING A MELTING TEMPERATURE OF NOT LESS THAN ABOUT 900*C. NOR MORE THAN ABOUT 1250*C.
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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) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |