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:
Apr. 05, 2005
Filed:
Jun. 02, 2003
Applicants:
Kay Sichtermann, Herdecke, DE;
Klaus E. Jost, Hagen, DE;
Inventors:
Kay Sichtermann, Herdecke, DE;
Klaus E. Jost, Hagen, DE;
Assignee:
Nelson Stud Welding, Inc., Elyria, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K011/04 ; B23K009/00 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to a method of manufacturing a welding stud from a wire by cold-working and by hardening and tempering. The welding stud particularly serves to be welded to a workpiece by means of an electric stud welding method and consists of a mounting portion and a welding portion. According to the invention, the wire is first pre-treated by hardening and tempering and is then cold-worked in such a way that the mounting portion and the welding portion have different strengths.