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. 20, 2021
Filed:
May. 10, 2018
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
David R. Sigler, Shelby Township, MI (US);
Blair E. Carlson, Ann Arbor, MI (US);
Yelena Myasnikova, West Bloomfield, MI (US);
Michael J. Karagoulis, Okemos, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 11/20 (2006.01); B23K 11/11 (2006.01); B23K 103/20 (2006.01);
U.S. Cl.
CPC ...
B23K 11/20 (2013.01); B23K 11/115 (2013.01); B23K 2103/20 (2018.08);
Abstract
A workpiece stack-up that includes at least a steel workpiece and an aluminum-based workpiece can be resistance spot welded by employing a multi-stage spot welding method in which the passage of electrical current is controlled to perform multiple stages of weld joint development.