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. 04, 2003
Filed:
Jul. 05, 2001
Applicant:
Inventors:
Ronan Dif, Saint-Etienne de Saint-Geoirs, FR;
Bernard Bes, Seyssins, FR;
Philippe Lassince, Issoire, FR;
Herve Ribes, Issoire, FR;
Assignee:
Pechiney Rhenalu, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/520 ; C22F 1/04 ;
U.S. Cl.
CPC ...
B32B 1/520 ; C22F 1/04 ;
Abstract
Clad sheet made up of a core sheet and a cladding layer on one or two core sheet surfaces. The core sheet is formed of an alloy having the composition (% by weight) Si: 0.7-1.3, Mg: 0.6-1.2, Cu: 0.5-1.1, Mn: 0.15-1.0, Zn<0.5, Fe<0.5, Zr<0.2, Cr<0.25, other elements <0.05 each and <0.15 total, the remainder aluminum. The cladding is formed of an AlZn alloy having a thickness of between 1 and 15% of the clad sheet thickness, having the composition (% by weight) Zn: 0.25-0.7, Fe<0.40, Si<0.40, Cu, Mn, Mg, V or Ti <0.10, other elements <0.05 each and 0.15 total.