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. 18, 1997
Filed:
Oct. 07, 1994
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ; B23K / ;
U.S. Cl.
CPC ...
219119 ;
Abstract
A resistance welding electrode for supplying a current to metal workpieces to weld the workpieces to each other has an electrode matrix of a copper alloy and a plurality of members disposed in the electrode matrix and having portions exposed on a surface of a tip end of the electrode matrix. The members are made of a material having an electric conductivity different from that of the electrode matrix. The exposed portions of the members have a total area which is in the range of 40 to 82% of the entire area of the tip end of the electrode matrix.