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. 29, 2009
Filed:
Mar. 03, 2009
Harry Wong, South Pasadena, CA (US);
Qiang LI, Malu, Jiading, Shanghai, CN;
Harry Wong, South Pasadena, CA (US);
Qiang Li, Malu, Jiading, Shanghai, CN;
Other;
Abstract
A clamping device utilizing the mechanism of conventional vise-grip or locking pliers comprises a L-shape fixed arm and a L-shape movable arm, an insulating U-shape clamping jaw which is connected to the ground cable of an arc welding system; and a floating pad attached to a threaded rod so that the effective clamping size of the clamping device is adjustable. With the U-shape clamping jaw, the clamping device is capable of clamping firmly flat workpieces of various thicknesses as well as workpieces with curved or angled surfaces and providing a good electrical contact between the ground cable of the arc welding system and the workpiece.