Patents in subclass Electric Heating/Butt Bonding (E.G., Welding)

Number	Patent title	Issue Date
06639170	Wire changing in an armature winder Methods and apparatus for replacing an old wire threaded through a flyer winder with a new wire are provided. A first end of the old wire is connected to a first end of the new wire. The wires may be connected by twining, clamping,...	10/28/2003
06373017	Continuous hot rolling mill with metal block conveying apparatus A continuous hot rolling mill with a metal block conveying apparatus and a metal block joining apparatus which moves with the metal blocks along the metal block conveying apparatus to conform a joining operation. The metal block conveying...	04/16/2002
06252211	Method of joining metal pieces A method and apparatus for joining metal pieces wherein the rear end of a preceding metal piece and a front end of a metal piece are heated and then pressed together prior to hot finished rolling. The temperature the ends of the metal...	06/26/2001
5674412	Butt splicer for copper based tapes Apparatus and method for butt-splicing hard-rolled and.backslash.or wide copper and copper alloy tapes employs a rolling electrode and varies the contact angle of the tape ends during soldering.	10/07/1997