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:
Jul. 14, 1981
Filed:
Apr. 16, 1979
Applicant:
Inventors:
Hiroyuki Watanabe, Toyotashi, JP;
Eiji Miyoshi, Suitashi, JP;
Haruo Kojima, Toyotashi, JP;
Takeshi Yoshida, Nagoyashi, JP;
Masaaki Kato, Toyotashi, JP;
Shizuo Miyazaki, Toyotashi, JP;
Assignee:
Nippon Stud Welding Co. Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
219 99 ; 219 75 ;
Abstract
A stud welding method uses an inert mixed gas as arc shield in performing stud welding on a base metal, such as, vehicle body, by utilizing the stud, e.g. a T-stud, as an electrode, the stud serving as the positive pole while the base metal serves as the negative pole to thereby prevent formation of oxide film on the base metal surface during the welding, the inert mixed gas comprising carbon dioxide gas and argon gas.