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. 06, 2004
Filed:
Aug. 22, 2002
Venkatasubramanian Ananthanarayanan, Beavercreek, OH (US);
Dharmendra M. Ramachandra, Centerville, OH (US);
Johnny R. Gentry, Kettering, OH (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A method for metallurgically attaching together two tubes. A first tube is obtained having a far wall portion with a first through hole and a near wall portion with a second through hole. A second tube is obtained including first and second outward folds. The tubes are positioned with the first fold passed through the second through hole and contacting the far wall portion surrounding the first through hole and with the second fold located outside the near wall portion. A first resistance welding current path is created proximate the first fold and the far wall portion and the first fold is relatively moved deformingly against the far wall portion creating a first weld zone. A second resistance welding current path is created proximate the second fold and the near wall portion and the second fold is relatively moved deformingly against the near wall portion creating a second weld zone.