The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 2006
Filed:
Nov. 17, 2003
Gary H. Bray, Murrysville, PA (US);
John Liu, Murrysville, PA (US);
Lynn Eugene Oswald, Bettendorf, IA (US);
Gary H. Bray, Murrysville, PA (US);
John Liu, Murrysville, PA (US);
Lynn Eugene Oswald, Bettendorf, IA (US);
Alcoa Inc., Pittsburgh, PA (US);
Abstract
An alloy product having improved fatigue failure resistance, comprising about, by weight, 7.6 to about 8.4% zinc, about 2.0 to about 2.6% copper, about 1.8 to about 2.3% magnesium, about 0.088 to about 0.25.% Zr, about 0.01 to about 0.09.% Fe, and about 0.01 to about 0.06 w % Si the balance substantially aluminum and incidental elements and impurities The alloy product, suitable for aerospace applications, exhibits improved fatigue failure resistance than its 7055 counterpart of similar size, shape, thickness and temper.