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:
May. 11, 1982
Filed:
Jul. 03, 1980
Tomomi Kishi, Toyota, JP;
Yoshitaka Yamamoto, Toyota, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
In effecting resistance welding, fluid pressure is applied to a piston in a cylinder to drive the piston rod ahead so that work being welded is clamped between an electrode provided at the end of the rod and another electrode carried by an arm to apply a suitable welding pressure to the work. As the piston is further moved ahead, a collector ring is expanded radially outwardly to make electrical contact with the power feeding liner, so that welding current fed from a feeder cable is supplied to the electrode through the cylinder, feeding liner, collector ring, collector plate and the rod, thereby to effect the welding while applying a suitable pressure to the work.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile