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:
Nov. 02, 1976
Filed:
Mar. 28, 1974
Applicant:
Inventors:
Atsushi Ohi, Fujisawa, JA;
Toshio Arai, Kamakura, JA;
Akihiko Ihochi, Odawara, JA;
Hironosuke Kada, Kamakura, JA;
Teruyoshi Sekino, Fujisawa, JA;
Kenichi Akahori, Kamakura, JA;
Assignee:
Kobe Steel Ltd., Kobe, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
2191 / ; 2191 / ;
Abstract
A method and an apparatus for non-consumable electrode type automatic arc welding in which the length of an arc produced between a non-consumable electrode and a workpiece which is being welded, is automatically controlled to an optimum value by means of an electric drive motor for driving an electrode according to a signal obtained by proportionally integrating or multiplying the voltage difference between the arc voltage detected by using an integrating element and the set reference voltage.