Patents in subclass Electric Heating/By Force Balancing

Parent class: Electric Heating

Number	Patent title	Issue Date
06911616	Weld gun assembly A weld gun for performing a welding operation on a workpiece includes a pair of opposing arms, at least one arm movable relative to the opposing arm to apply pressure to the workpiece during a welding operation. A pair of identical or...	06/28/2005
06720517	Resistance welding head and resistance welding apparatus and method using the head A resistance welding head carries out resistance welding while clamping spots are being welded by a pair of electrodes. The head is floated in a direction Y perpendicular to a direction X of juxtaposing the spots being welded. The pair of...	04/13/2004
06337456	Welding machine and method for assembling same In a resistance welding machine, an arm including one electrode tip, a drive unit including a linear guide for driving another electrode tip corresponding to the one electrode tip, and a welding unit including a welding transformer for...	01/08/2002
06204467	Method and apparatus for resistive welding A method and apparatus for resistive welding using an electrode holder having an elongated cylinder. The cylinder has a closed end and an open end. The cylinder contains a moveable piston. The piston includes a compression surface and an...	03/20/2001
06201206	Method of detecting abrasion quantity of welding gun electrode and welding method A plate-shaped jig (9) is fixed between a fixed-side electrode (5) and a moving-side electrode (6). The end of an arm is set to move by an external force in the direction the moving-side electrode (6) moves, and then the moving-side...	03/13/2001
5988486	Method of controlling electrode force of spot welding gun In a spot welding gun which is made up of a gun main body which is operated for equalization by a driving source, a stationary electrode tip which is immovable relative to the gun main body, and a movable electrode tip which is connected...	11/23/1999