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:
Mar. 07, 2017
Filed:
Feb. 08, 2012
Edward L. Colvin, West Lafayette, IN (US);
Roberto J. Rioja, Murrysville, PA (US);
Les A. Yocum, West Lafayette, IN (US);
Diana K. Denzer, Lower Burrell, PA (US);
Todd K. Cogswell, Lafayette, IN (US);
Gary H. Bray, Murrysville, PA (US);
Ralph R. Sawtell, Gibsonia, PA (US);
Andre L. Wilson, Bettendorf, IA (US);
Edward L. Colvin, West Lafayette, IN (US);
Roberto J. Rioja, Murrysville, PA (US);
Les A. Yocum, West Lafayette, IN (US);
Diana K. Denzer, Lower Burrell, PA (US);
Todd K. Cogswell, Lafayette, IN (US);
Gary H. Bray, Murrysville, PA (US);
Ralph R. Sawtell, Gibsonia, PA (US);
Andre L. Wilson, Bettendorf, IA (US);
ARCONIC INC., Pittsburgh, PA (US);
Abstract
Improved aluminum-copper-lithium alloys are disclosed. The alloys may include 3.4-4.2 wt. % Cu, 0.9-1.4 wt. % Li, 0.3-0.7 wt. % Ag, 0.1-0.6 wt. % Mg, 0.2-0.8 wt. % Zn, 0.1-0.6 wt. % Mn, and 0.01-0.6 wt. % of at least one grain structure control element, the balance being aluminum and incidental elements and impurities. The alloys achieve an improved combination of properties over prior art alloys.