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:
Jan. 25, 1977
Filed:
Jul. 18, 1975
Applicant:
Inventors:
Yoshio Baba, Nagoya, JA;
Akira Takashima, Nagoya, JA;
Assignee:
Sumitomo Light Metal Industries, Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428469 ; 75140 ; 148 315 ; 148 325 ; 204 / ; 204 / ; 204 58 ;
Abstract
An aluminum alloy with freely-machinable or free-cutting properties and corrosion resistance consists essentially of aluminum, copper, magnesium, tin, lead, and silicon and optionally further contains small amounts of any one or more of the elements selected from chromium, manganese, titanium, vanadium and zirconium. This alloy has the property for preventing peeling-off of an anodically oxidized surface layer after being heated at an elevated temperature.