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. 17, 2004
Filed:
Apr. 24, 2002
Applicant:
Inventors:
Frédéric Catteau, Issoire, FR;
David Godard, Montreuil-Juigne, FR;
Assignee:
Pechiney Rhenalu, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/501 ; B32B 3/104 ;
U.S. Cl.
CPC ...
B32B 1/501 ; B32B 3/104 ;
Abstract
The present invention is directed to a metal block suitable for machining, the metal block comprising at least two superimposed metal plates, each having a thickness of at least 12.5 mm, wherein the yield strength of the block is at least 75% of the yield strength of the initial metal plate(s). The present invention is further directed to methods for manufacturing such blocks from two or more thick metal plates by explosive welding and other methods. Blocks according to the present invention are useful, for example, for manufacturing aircraft structural components or injection molds for plastics or rubber.