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. 29, 2000
Filed:
Feb. 18, 1999
Applicant:
Inventor:
William A Groll, McMurray, PA (US);
Assignee:
Clad Metals LLC, Canonsburg, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
B23K / ; B23K / ; B23K / ; A47J / ;
U.S. Cl.
CPC ...
228107 ; 228193 ; 2282353 ;
Abstract
A composite griddle plate is provided having a heavy copper core which is diffusion bonded to one or more outer plates of stainless steel, carbon steel or titanium. The copper cored composite is made by explosion bonding the outer metal plates to the copper core to achieve diffusion bonding followed by multi-pass, small, incremental reduction passes in a hot rolling mill conducted within a narrowly controlled temperature range falling within the overlapping hot working range of the copper core and the dissimilar metal of the outer layers.