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. 04, 2006
Filed:
Jan. 30, 2003
Shoji Shiba, Higashimurayama, JP;
Toyoaki Matsuzaki, Shizuoka-Ken, JP;
Shoji Shiba, Higashimurayama, JP;
Toyoaki Matsuzaki, Shizuoka-Ken, JP;
Xenesys Inc., , JP;
Dengensha Mfg., Co., Ltd., , JP;
Abstract
A seam welding apparatus enables, even when metallic sheets are arranged in a line in a short distance, the welding electrodes to come into contact only with the metallic sheet to be welded, so as to provide a reliable welding of the metallic sheets to form connected portions having high strength. The roller electrode, which has on its outer peripheral portion the conical electrode surface, is supported by the central axis inclined relative to the surface of the metallic sheetto be welded, and there is provided the stationary electrodein which the portion including the flat electrode surfacehas the smaller thickness. The electrode surfaceof the roller electrodeis brought into contact with the surface of one of the metallic sheetsto be welded, while bringing the electrode surfaceof the stationary electrodeinto contact with the surface of the other metallic sheet. It is possible to prevent interference of the roller electrodeand the stationary electrodewith the metallic sheet, which is not currently subjected to the welding, and to hold firmly the metallic sheetto be welded by the roller electrodeand the stationary electrodeto perform the seam welding.