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. 09, 1993
Filed:
Nov. 13, 1990
Roger D Doherty, Wynnewood, PA (US);
John Liu, Lower Burrell, PA (US);
Robert E Sanders, Jr, New Kensington, PA (US);
Aluminum Company of America, Pittsburgh, PA (US);
Abstract
Disclosed is a method for making an aluminum alloy sheet having controlled levels of strength properties for forming into a container panel. A body of an aluminum alloy consisting essentially of 0.45 to 0.60 wt. % Cu, 1.1 to 1.7 wt. % Mg, 0.3 to 0.6 wt. % Si, 0.3 to 0.55 wt. % Fe, 0.5 to 1.2 wt. % Mn, the remainder aluminum, incidental elements and impurities, is hot rolled to a gauge in the range of 0.12 to 0.16 inch to provide a hot rolled product. The hot rolled product is cold rolled to provide a reduction of 50 to 80% in thickness, then solution heat treated in a range of 850.degree. to 110.degree. F. and rapidly cooled before cold rollign to a final sheet gauge by providing a reduction of 30 to 90% in thickness.