| Patents for B23K 11 - Resistance welding; Severing by resistance heating (12,828) |
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| 11/06/1991 | EP0454667A1 Power control and line voltage monitor/compensator for resistance spot welding machines |
| 11/05/1991 | US5063279 Methods and apparatus for fusing armature and stator wires |
| 11/05/1991 | US5063278 Method and apparatus for supplying electric power to resistance welding gun |
| 11/05/1991 | US5062189 Device for profiling an electrode roller |
| 10/31/1991 | DE4012968A1 Pneumatically-operated linear drive for automatic point welding device - has piston-cylinder device with successive cylinder spaces between tandem pistons |
| 10/30/1991 | EP0454573A1 Automatic device for spot welding wafers on turbine blades and method therefor |
| 10/29/1991 | US5061837 Method and apparatus for selectively demetallizing a metallized film |
| 10/29/1991 | CA1291323C Method for assembling three dimensional metal structures, machine for the manufacturing thereof, and structures obtained with such a method |
| 10/23/1991 | EP0452440A1 Process and device for automatic determination of parameters for process control systems with unknown transfer behaviour, in particular for process control systems for resistance spot welding. |
| 10/23/1991 | CN2087116U Automatic control decice for charge and discharge of single-point welding |
| 10/23/1991 | CN2087115U Seam welder for reinforced steel frame of concrete drain pipe |
| 10/22/1991 | US5059326 Resistance spot welding of multilayers of metal wire mesh; shaping plate structure; catalytic exhaust systems |
| 10/17/1991 | WO1991015317A1 Double-point welding machine |
| 10/17/1991 | DE4110539A1 Titanium nitride or carbonitride coated copper component - used esp. in resistance or arc welding or in electrical switches |
| 10/03/1991 | WO1991015092A1 Heat controller and method for heat treatment of metal |
| 10/03/1991 | WO1991015091A1 Heat controller and method for heat treatment of metal |
| 10/01/1991 | US5053599 Welding gun assembly with transformers |
| 10/01/1991 | US5053597 Method and apparatus for fabricating double-layer, welded grid bodies |
| 09/10/1991 | US5047608 Method and apparatus for resistance welding wherein the electrode axis is included with respect to the electrode forcing axis |
| 09/10/1991 | US5046706 Power clamp |
| 09/10/1991 | CA1288641C Method for forming a metal cylindrical container |
| 09/05/1991 | DE4006448A1 Hand spot-welding device - is operated by cylinder unit which moves tongs and feeds current to work tops via flexible leads |
| 09/04/1991 | EP0444271A2 Disc for a centrifugal separator |
| 09/04/1991 | CN1054209A Supply apparatus for part with hole |
| 08/28/1991 | CN2083525U Micro soldering and spot welding machine |
| 08/22/1991 | DE4003251A1 Secondary cable connection for e.g. welding electrodes - comprises copper strands encircled by compressed copper sheet with interlocking longitudinal edges |
| 08/21/1991 | EP0283492B1 Welding electrode arrangement |
| 08/21/1991 | CN2083094U Small electrode holder for soldering and point-welding |
| 08/20/1991 | US5041711 Spot welding electrode |
| 08/20/1991 | CA1287752C Method for forming a titantium lined electrochemical cell |
| 08/13/1991 | CA1287510C Conveying and guiding of sheets for butt-welding |
| 08/07/1991 | WO1991012107A1 Welding apparatus and transformer therefor |
| 08/07/1991 | EP0439665A1 Welding machine for flat bars |
| 08/07/1991 | CA2050581A1 Welding apparatus and transformer therefor |
| 08/06/1991 | US5038010 Apparatus for welding leads to the electrodes of an ultrahigh voltage mercury vapor lamp |
| 07/30/1991 | US5036175 Welding gun having equalizing function |
| 07/30/1991 | CA1287121C Forming unit for electrode chip of welder |
| 07/25/1991 | WO1991010532A1 Process and device for forming electrodes in a spot welding gun or the like |
| 07/24/1991 | EP0438204A1 Resistance welding apparatus |
| 07/24/1991 | EP0437798A2 Installation for manufacturing and welding of earhandles on plate for can bodies |
| 07/24/1991 | EP0437797A2 Installation for welding ear handles on plate for can bodies |
| 07/24/1991 | EP0437659A1 Procedure and device for resistance welding of leads or the like |
| 07/16/1991 | US5032704 Multi-pressure control system |
| 07/16/1991 | US5032358 Thermo and electroconductive |
| 07/16/1991 | CA1286370C Ultrasonic method and apparatus for spot weld control |
| 07/11/1991 | DE4020924C1 Method of deburring welded tube - has burr removed from tube surface and cut intermittently within tube |
| 07/10/1991 | EP0214199B1 Process and device for automatic assembly and working |
| 07/10/1991 | EP0208708B1 A method for heating metal elements to be joined |
| 07/09/1991 | US5030816 Joining two metals |
| 07/09/1991 | US5030814 Indirect spot welding method |
| 07/09/1991 | US5030813 Welding apparatus and transformer therefor |
| 07/09/1991 | CA1285884C Wound metallic exhaust gas catalyst carrier body having a geometrically complex cross-sectional shape, and method, apparatus and blank for producing the body |
| 07/02/1991 | US5027909 Tool holding apparatus |
| 06/26/1991 | EP0434637A2 An articulated coupling for supplying electrical energy and cooling liquid to a welding gun |
| 06/26/1991 | EP0434350A2 Automatic feed system for parts to be welded |
| 06/25/1991 | US5026963 C-type welding gun |
| 06/25/1991 | US5026612 Surface treatment aluminum sheet; applying adhesive; press lubricant |
| 06/22/1991 | CA2006842A1 Method of flash-butt contact welding of a pair of workpieces |
| 06/18/1991 | CA1285006C Feed device, particularly for can bodies |
| 06/12/1991 | EP0431562A1 Welding tool for welding with multi-axis manipulator |
| 06/05/1991 | EP0430483A1 Electrical connectors |
| 06/05/1991 | EP0429606A1 Process and machine for making wire grids. |
| 06/05/1991 | CN1051875A Apparatus for rounding and conveying onwards sheet-metal blanks for can bodies |
| 06/04/1991 | US5021627 Electrode for resistance welding surface-treated sheets of steel and method of manufacturing such electrodes |
| 06/04/1991 | US5021626 Resistance welding apparatus |
| 06/04/1991 | US5021625 Pre-resistance-welding resistance check |
| 05/29/1991 | CN1012671B Electrode wire for roller seam welding machine |
| 05/22/1991 | EP0428496A1 Connection for construction elements of different materials |
| 05/22/1991 | EP0428190A1 Method for producing a cylindrical metal container |
| 05/21/1991 | US5017749 Resistance welding apparatus |
| 05/16/1991 | WO1991006392A1 Process and device for automatic determination of parameters for process control systems with unknown transfer behaviour, in particular for process control systems for resistance spot welding |
| 05/16/1991 | WO1991006391A1 Method for connection of parts by electric contact projection welding |
| 05/16/1991 | DE3937643A1 Pincer welding electrode holders - uses slotted link transmission between cylinder and moving arm to increase opening and closing speeds |
| 05/15/1991 | EP0426689A1 Device for actuating the welding electrode or tongs of resistance welding machines |
| 05/15/1991 | EP0296151B1 Device with lifting frame for the machining of workpieces |
| 05/14/1991 | US5015816 Resistance welding electrode and process |
| 05/14/1991 | US5015815 Process and device for regulation of resistance or arc welding processes |
| 05/14/1991 | CA2029814A1 Connecting assembly and method for parts of different materials |
| 05/08/1991 | EP0426454A2 A method of bonding a composite abrasive compact to a metal containing support |
| 05/08/1991 | DE4031825A1 Guidance system ensures cylindrical shape of welded can bodies - by using Z=shaped grooves and rollers to overlap longitudinal edges of body prior to welding |
| 05/07/1991 | US5013879 Mechanism for feeding transverse reinforcement rod to a welding machine |
| 05/07/1991 | CA1283882C Conveyor device for can bodies in a can welding machine |
| 05/02/1991 | WO1991005632A1 A device for attachment to an object of a piece of wire of a weldable material |
| 05/01/1991 | CN2076004U Spot welder for repairing subside of automobile's body |
| 04/24/1991 | EP0424230A1 Improved robot |
| 04/24/1991 | EP0424190A1 Tool outfit comprising a pair of articulated tongs with an undercut system |
| 04/23/1991 | US5010228 Tool changer for welding robot |
| 04/23/1991 | US5010226 Automatic seam welding apparatus |
| 04/11/1991 | DE3932532A1 Hydraulically operated tool-holder and actuator - has double-acting cylinders with opposed strokes for generating symmetrical thrust during riveting or welding operations |
| 04/09/1991 | CA1282842C Method and device for the orientation and longitudinal movement of rounded can bodies in relation to a welding apparatus |
| 04/03/1991 | EP0419849A1 Methods and apparatus for fusing armature and stator wires |
| 04/03/1991 | CN2074223U Metal corrugation packing storage spot welder |
| 04/03/1991 | CN1050347A Resistance seam wilding machine |
| 03/27/1991 | EP0418547A2 Resistance seam welding machine |
| 03/27/1991 | EP0418395A1 Variable pitch spot welding gun device for welding robot |
| 03/26/1991 | US5002500 Quick connect/disconnector for high amperage current |
| 03/26/1991 | CA1281918C Machine for flash butt welding of pipes |
| 03/21/1991 | CA2025694A1 Tooling comprising tongs with two pivoted arms, with a release system |
| 03/21/1991 | CA2023806A1 Resistance seam welding machine |
| 03/20/1991 | EP0417687A1 Welding gun for industrial robot |