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. 13, 1984
Filed:
May. 12, 1981
Applicant:
Inventors:
Norbert Pache, Augsburg, DE;
Karel Mazac, Friedberg, DE;
Assignee:
Industrie-Werke Karlsruhe Augsburg Aktiengesellschaft, Augsburg, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
219123 ; 336 60 ;
Abstract
An electrical arc welding device for two workpieces to be welded together along an annular weld seam, e.g. ends of pipe sections, and in which a magnet arrangement surrounds the welding-seam path. According to the invention, a magnetizable ring is formed by the inwardly extending poles of a plurality of magnets having flat cores and surrounded by coils for electromagnetically energizing the cores.