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US2994947A
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US
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Aluminum base alloy powder product
Assignee: Alcoa Corp
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Filing: 1958-11-12
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Granted: 1961-08-08
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Expires: 1978-11-12
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Towner
- 👤 Jr John P Lyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:46
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/0408; C22C1/0416; Y; Y10; Y10S; Y10S75/00; Y10S75/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A HOT WORKED ALUMINUM BASE ALLOY POWDER ARTICLE FREE FROM ALUMINUM OXIDE EXCEPT AS AN INCIDENTAL IMPURITY AND HAVING A MAXIMUM IRON CONTENT OF 1%, SAID HOT WORKED ALLOY POWDER ARTICLE BEING FORMED FROM ATOMIZED POWDER OF AN ALUMINUM BASE ALLOY CONTAINING AT LEAST 50% BY WEIGHT OF ALUMINUM AND FROM 4 TO 40% BY WEIGHT OF BERYLLIUM AS THE ESSENTIAL COMPONENT, THE AMOUNT OF SAID COMPONENT EXCEEDING THE TOTAL QUANTITY OF ANY HARDENING ELEMENTS PRESENT IN THE ALLOY, SAID ALLOY BEING SUBSTANTIALLY FREE FROM ELEMENTS WHICH FORM A SOLID SOLUTION WITH ALUMINUM, EXCEPT AS THEY OCCUR AS IMPURITIES, SAID HOT WORKED ARTICLE BEING CHARACTERIZED IN THE AS-WORKED CONDITION BY A TENSILE STRENGTH AT 600*F. AFTER A 100-HOUR EXPOSURE OF NOT LESS THAN 8000 P.S.I. AND A YIELD STRENGTH OF NOT LESS THAN 7000 P.S.I.
Claim 2
Dependent Claim
135 words
A HOT WORKED ALUMINUM BASE ALLOY POWDER ARTICLE FREE FROM ALUMINUM OXIDE EXCEPT AS AN INCIDENTAL IMPURITY AND HAVING A MAXIMUM IRON CONTENT OF 1%, SAID HOT WORKED ALLOY POWDER ARTICLE BEING FORMED FROM ATOMIZED POWDER OF AN ALUMINUM BASE ALLOY CONTAINING AT LEAST 50% BY WEIGHT OF ALUMINUM AND FROM 4 TO 40% BY WEIGHT OF BERYLLIUM AS THE ESSENTIAL COMPONENT, THE AMOUNT OF SAID COMPONENT EXCEEDING THE TOTAL QUANTITY OF ANY HARDENING ELEMENTS PRESENT IN THE ALLOY, SAID ALLOY BEING SUBSTANTIALLY FREE FROM ELEMENTS WHICH FORM A SOLID SOLUTION WITH ALUMINUM, EXCEPT AS THEY OCCUR AS IMPURITIES, SAID HOT WORKED ARTICLE BEING CHARACTERIZED IN THE AS-WORKED CONDITION BY A TENSILE STRENGTH AT 600*F. AFTER A 100-HOUR EXPOSURE OF NOT LESS THAN 8000 P.S.I. AND A YIELD STRENGTH OF NOT LESS THAN 7000 P.S.I.
References Cited (Backward Citations)
US2796660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |