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. 20, 2004
Filed:
Feb. 28, 2003
Applicant:
Inventors:
James Franklin Hengel, Romeo, MI (US);
David P. Kelly, Durand, MI (US);
Pei-Chung Wang, Troy, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 1/114 ;
U.S. Cl.
CPC ...
B23K 1/114 ;
Abstract
This invention provides a method of welding a flange nut to a workpiece surface using an improved design of a welding electrode. The electrode comprises a parts-receiving recess adapted to receive a stem portion of the nut, while maintaining a clearance between the recess and the stem. This clearance allows electrical current to be directed toward the flange portion of the nut. As a result, electrical contact between the workpiece and projections underlying the flange is greatly improved, thereby produce higher quality spot welds and increasing the life of the electrode tip.