| Patents for B23K 11 - Resistance welding; Severing by resistance heating (12,828) |
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| 12/26/1989 | US4889967 Plural welding rod welding apparatus |
| 12/26/1989 | US4889773 Metal phosphide pigment in binder |
| 12/20/1989 | CN1006131B Technology for welding dental drills |
| 12/20/1989 | CN1006130B Method and apparatus for constant current control of spot-, projection- and seam-welding |
| 12/20/1989 | CN1006129B Control circuit for current of welding transformer |
| 12/14/1989 | WO1989011933A1 Grid welding machine operating on the electrical resistance principle |
| 12/13/1989 | EP0345473A2 Circuit for measuring the voltage difference between the welding electrodes of a resistance-welding machine |
| 12/12/1989 | US4887014 Industrial robot control device |
| 12/12/1989 | US4886953 Electrode wire for a roller seam welding machine |
| 12/05/1989 | US4885451 Automatic stepper for resistance welding |
| 12/05/1989 | US4885450 Machine for resistance butt welding of pipes |
| 12/05/1989 | CA1263715A1 Flash-butt resistance welding process |
| 11/30/1989 | WO1989011358A1 Process and installation for producing two-layered welded network bodies |
| 11/29/1989 | EP0344034A1 Resistance-welding process and device for carrying it out |
| 11/29/1989 | EP0343375A1 Method for cancelling of conductive-path interruptions |
| 11/28/1989 | CA1263453A1 Welding apparatus for motorcar body |
| 11/22/1989 | CN1037292A Welding apparatus |
| 11/16/1989 | DE3815069A1 Method of producing a corrosion-resistant joint between metallic structural elements by spot welding |
| 11/15/1989 | CN2047612U Electroic self-control wire butt welding |
| 11/14/1989 | US4880131 Ringless paint container |
| 11/07/1989 | US4879447 Piston actuated welding gun with pivoting arm |
| 11/07/1989 | US4879445 Seam welding apparatus with edge detection |
| 11/02/1989 | EP0340164A1 Device for redistributing food discs from a first onto a second transport organ |
| 11/02/1989 | EP0339551A2 Control apparatus of resistance welders and control method thereof |
| 11/01/1989 | CN2046789U Magnetic positioning and circle fixing instrument for cutting gun |
| 11/01/1989 | CN1005619B Work piece feeding device for wire welding machine |
| 10/24/1989 | US4876431 Microprocessor welder controller |
| 10/24/1989 | US4876430 Preweld test method |
| 10/10/1989 | US4873412 Automatic feed apparatus, for fusion welding machine, and electrode holder therefor |
| 10/10/1989 | US4873411 Method of spot-welding flat-type electrical wires to metal terminals |
| 10/10/1989 | US4873410 Parallel gap welder |
| 10/04/1989 | EP0335858A2 Multi-spot welding machine |
| 10/04/1989 | EP0334969A1 Method of contact-type flash-butt welding of group of identical parts by pairs |
| 10/03/1989 | US4871894 Methods and apparatus for manufacturing piston rods |
| 09/26/1989 | US4870241 Conveyor device for can bodies in a can welding machine |
| 09/26/1989 | US4870240 Apparatus for contacting wires with resistance welding |
| 09/26/1989 | US4869616 Universal joint cross |
| 09/26/1989 | CA1260552A1 Electrode roll |
| 09/21/1989 | WO1989008931A1 Resistance welding method and resistance welding circuit device in lead acid battery |
| 09/20/1989 | CN1035694A Flash butt welding machine and method for welding, particularly two butt joint of rail bar on track |
| 09/19/1989 | US4868364 Seam welder with feedback control to compensate for varying welding speed |
| 09/19/1989 | US4868348 Welding cable |
| 09/12/1989 | US4866237 Method of discharge coating and an apparatus therefor |
| 09/12/1989 | US4865498 Electrode dressing tool |
| 09/12/1989 | US4865243 Sizing tool for a machine for the longitudinal seam welding of rounded can bodies |
| 09/12/1989 | US4864706 Fabrication of dual alloy integrally bladed rotors |
| 09/08/1989 | WO1989008001A1 Process for joint welding of small components |
| 09/08/1989 | WO1989007999A1 Process for resistance diffusion junction |
| 09/06/1989 | EP0330862A1 Controlled pressure butt welding and apparatus therefor |
| 09/05/1989 | US4864095 Apparatus for assembling a mesh ring for a catalytic converter |
| 09/05/1989 | CA1259108A1 Continuous motion circumferential seam welder |
| 08/31/1989 | DE3805404A1 Method of butt welding a journal or the like to a plate |
| 08/29/1989 | US4861959 Resistance spot welding gun and transformer assembly |
| 08/23/1989 | EP0329066A2 Procedure for the fabrication of a thinwalled metal vessel with a welded on handle and weldingdevice for carrying out the procedure |
| 08/23/1989 | EP0328695A1 Process for producing welded joints between metals with the same or different fusion temperatures |
| 08/22/1989 | US4859825 Spot welding electrode and method for making it |
| 08/16/1989 | CN1034772A Rail pulling and shifting plant |
| 08/15/1989 | US4856949 Rotative tool for repairing electrodes for spot welding |
| 08/15/1989 | US4856312 Rounding apparatus for a can welding machine |
| 08/10/1989 | DE3809420C1 Machine for producing reinforcing cages for reinforced-concrete pipes in vertical type of fabrication |
| 08/09/1989 | EP0326794A1 Method for the electric butt-welding of the two reciprocally contacting ends in the gap region of a laid railway track |
| 08/09/1989 | EP0326793A1 Apparatus for the electric butt-welding of the two reciprocally contacting ends in the gap region of a laid railway track |
| 08/08/1989 | US4855561 Resistance weld pin and method of welding |
| 08/08/1989 | US4855560 Welding robot |
| 08/08/1989 | US4855532 Welding cable |
| 08/03/1989 | DE3832977C1 Welding tongs for electric resistance welding |
| 08/02/1989 | CN2041989U Heater for pressed butt welding |
| 08/01/1989 | US4853511 Apparatus for the feeding of transverse wires to the welding line of a grid welding machine |
| 08/01/1989 | CA1258083A1 Robot arms |
| 07/27/1989 | DE3801538A1 Vorrichtung zum elektrofunken-auftragschweissen auf die stirnflaeche von rotationskoerpern Apparatus for electro-spark welding job on the stirnflaeche of rotationskoerpern |
| 07/26/1989 | EP0325123A2 Method of making a cylindrical metal container |
| 07/25/1989 | US4851635 Method and apparatus for determining the power factor of a circuit |
| 07/25/1989 | US4850776 Decorative capped wheel nut and method of making same |
| 07/25/1989 | US4850214 Method of fabricating a projection for resistance welding |
| 07/19/1989 | CN2041227U Multifunctional energy-saving high-speed soldering set |
| 07/19/1989 | CN2041226U Energy storaging-type spot welder |
| 07/19/1989 | CN2041224U Dual-purpose electric welding machine for spot and arc weldings |
| 07/18/1989 | US4849601 Current-loop feedback of spot welding machines |
| 07/18/1989 | US4849600 Constant temperature welding method |
| 07/18/1989 | US4849596 Electrical terminals, terminating methods and assemblies |
| 07/11/1989 | US4847230 Multilayer corrugated and smooth metal sheets |
| 07/11/1989 | CA1257318A1 Method of preventing sag of panel and apparatus therefor |
| 07/04/1989 | US4845333 Welding method and apparatus |
| 07/04/1989 | US4844326 Method of and system for assembling vehicle bodies |
| 06/29/1989 | DE3743341A1 Means for actuating the welding electrode or welding tongs of resistance-welding equipment |
| 06/29/1989 | DE3742461A1 Switching and control arrangement on electric resistance-welding machines |
| 06/27/1989 | US4843206 Resistance welding electrode chip |
| 06/27/1989 | US4843205 Resistance weld joining of high electrical conductivity copper foil |
| 06/27/1989 | US4842456 Forming unit for electrode chip of welder |
| 06/27/1989 | CA1256513A1 Method and arrangement for regulating the welding operation in a resistance welding machine |
| 06/27/1989 | CA1256512A1 Welding machine for welding tongues onto sheet-metal parts |
| 06/22/1989 | DE3803415C1 Method of electrically welding angular shaped parts deviating from 90@ |
| 06/22/1989 | DE3741534A1 Heating element having a heating filament |
| 06/20/1989 | US4841210 Industrial robot control device |
| 06/20/1989 | US4841113 Welding control apparatus and method |
| 06/15/1989 | WO1989005202A1 Process and apparatus for producing spirally-seamed metal tubing |
| 06/14/1989 | EP0320396A1 Double milling cutter to repair welding electrodes |
| 06/14/1989 | EP0319950A1 Crosswire feeding device for a grid-welding machine |
| 06/14/1989 | EP0203170B1 Flexible manufacturing system for the processing and production of multiple-component assemblies, in particular unfinished coachwork assemblies |
| 06/13/1989 | US4839491 Method for forming a metal cylindrical container |