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:
Nov. 07, 1989
Filed:
Aug. 19, 1988
Shigeru Umeda, Kanagawa, JP;
Obara Corporation, Tokyo, JP;
Abstract
A welding gun comprises a fixed arm having an electrode at an end thereof and integrated with a cylinder at the other end thereof and a pin at the middle portion of the fixed arm for swingably mounting the fixed arm on a base, the cylinder having a piston provided with a rod at the distal end thereof; a movable arm having an electrode at an end thereof opposite to the electrode of the fixed arm, a pin at the other end thereof for connecting the movable arm to the rod of the piston, and a pin at the middle portion of the movable arm; and a link connecting the pins respectively provided at the middle portions of the fixed arm and the mocable arm for pivotally connecting the fixed arm to the movable arm.