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:
Dec. 12, 2006
Filed:
Feb. 12, 2004
Thomas Beisswenger, Stuttgart, DE;
Arnold Lamm, Elchingen, DE;
Thomas Poschmann, Ulm, DE;
Bernhard Vogel, Stuttgart, DE;
Wolfgang Weger, Hochdorf, DE;
Norbert Wiesheu, Guenzburg, DE;
Thomas Beisswenger, Stuttgart, DE;
Arnold Lamm, Elchingen, DE;
Thomas Poschmann, Ulm, DE;
Bernhard Vogel, Stuttgart, DE;
Wolfgang Weger, Hochdorf, DE;
Norbert Wiesheu, Guenzburg, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
A method and a system for resistance seam welding of a foil and at least one foil support of a fuel cell system. During welding, the thin foil, together with the thicker foil support, is moved relative to the roller electrode while resting on a flat support element. In a suitable welding system, a counter-electrode is designed as a flat support element, such as a welding strip, that is displaceable relative to the roller electrode, the roller electrode being in rolling contact with the foil support, but not with the foil. Depending on whether one foil is to be welded to one or two foil frames, the support element may be designed having a high or a low specific electric resistance.