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. 16, 2002
Filed:
Jan. 25, 2001
Applicant:
Inventors:
Pei-Chung Wang, Troy, MI (US);
Ningjian Huang, Rochester Hills, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 9/28 ; B23K 1/100 ;
U.S. Cl.
CPC ...
B23K 9/28 ; B23K 1/100 ;
Abstract
A method for forming an electrical resistance weld between a metal tube and a metal sheet is disclosed. In the method, a plurality of generally circular protrusions having generally triangular cross sections is formed upon the sheet. Thereafter, electrodes are utilized to flex the tube, while an electrical current is generated for electric resistance welding the sheet to the tube.