Ground clamp
US7637753B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 3, 2009 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Mar 3, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R4/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.