Metal treatment – Stock – Age or precipitation hardened or strengthened
Reexamination Certificate
2006-08-08
2006-08-08
Wyszomierski, George (Department: 1742)
Metal treatment
Stock
Age or precipitation hardened or strengthened
C420S532000
Reexamination Certificate
active
07087125
ABSTRACT:
An aluminum alloy for shaped castings, the alloy having the following composition ranges in weight percent: about 6.0–8.5% silicon, less than 0.4% magnesium, less than 0.1% cerium, less than 0.2% iron, copper in a range from about 0.1% to about 0.5% and/or zinc in a range from about 1% to about 4%, the alloy being particularly suited for T5 heat treatment.
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patent: 6783869 (2004-08-01), Humer et al.
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patent: 2003/0178106 (2003-09-01), DasGupta
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“Aluminum and Aluminum Alloys”, ASM International, 1993, pp. 26, 41, 91-93, 104, 718-721.
Brandt Michael K.
Glazoff Michael V.
Grasmo Geir
Jacobsen Pål S.
Johnsen Terje
Alcoa Inc.
Greenberg & Traurig, LLP
Hild, Jr. Harry A.
Morillo Janelle
Wyszomierski George
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