| Patents for B23K 11 - Resistance welding; Severing by resistance heating (12,828) |
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| 03/20/1991 | EP0417533A2 Welding method and device |
| 03/20/1991 | EP0417468A1 Welding apparatus coated with spatter-resistant and electrically conductive film |
| 03/13/1991 | CN1011952B Welding apparatus |
| 03/12/1991 | US4999477 Resistance measuring mechanism in a resistance welding machine |
| 03/12/1991 | US4999476 Machine for pressure welding workpieces heated with arc moving in magnetic field |
| 03/12/1991 | US4999475 Detecting system of electrode tips for a spot welder |
| 03/12/1991 | CA1281260C Water shut-off valve |
| 03/06/1991 | EP0415274A2 Diodes arrangement for resistance welding machines |
| 02/27/1991 | EP0414030A2 Weld-through adhesive sealant |
| 02/27/1991 | EP0413955A2 Device for rounding and conveying on sheet blanks for can shells |
| 02/27/1991 | EP0413821A1 Method of flash-butt contact welding of a pair of parts |
| 02/26/1991 | US4996408 Proximity switch for use in welding facilities |
| 02/26/1991 | US4995919 Applying heating current to ribbon under tension |
| 02/21/1991 | DE3927435A1 Balance control of welding tongs which open linearly or rotationally - magnetic or friction brake is used to provide accurate balance in all positions of tongs |
| 02/20/1991 | CN1011719B Rail pulling and shifting plant |
| 02/13/1991 | EP0412735A1 Welded can body |
| 02/12/1991 | US4991765 Push rod manufacturing method |
| 02/07/1991 | DE4023393A1 Welding together sheet sections to form closed box section - using interlocking edges to produce edge flange which does not protrude |
| 02/06/1991 | EP0411421A1 Process for the production of a filter and filter produced thereby |
| 02/05/1991 | CA1279842C Method of fabricating structures from aluminium sheet and structures comprising aluminium components |
| 02/03/1991 | CA2021723A1 Process for the manufacture of a filter and the filter then manufactured |
| 01/29/1991 | US4988843 Electrical flash butt welding apparatus |
| 01/24/1991 | DE3938563A1 Robotic welding unit to facilitate access - has on rotatable upper part arresting unit with lever mechanism to clamp it to conducting ring on fixed lower part |
| 01/23/1991 | EP0379596A4 Installation for pressure welding of parts heated by an arc moving in a magnetic field |
| 01/15/1991 | US4985612 Master computer controlled modular welder, weld control, and power unit apparatus and method |
| 01/15/1991 | US4985611 Welding equipment |
| 01/09/1991 | CN2068880U Noble gas processing device for electric resistance value cutting machine |
| 01/08/1991 | US4984171 Control method and apparatus for automatic welding machine |
| 01/08/1991 | US4983805 Flashless D.C. butt welding electrodes |
| 01/08/1991 | US4983801 Rail tensioning apparatus |
| 12/27/1990 | WO1990015689A1 Clamping device for fixing parts during contact butt welding |
| 12/23/1990 | WO1990015677A1 Process and machine for making wire grids |
| 12/23/1990 | CA2035041A1 Process and machine for making wire grids |
| 12/13/1990 | WO1990014920A1 Device for actuating the welding electrode or tongs of resistance welding machines |
| 12/11/1990 | US4976484 Work positioning device for assembly line |
| 12/04/1990 | US4975556 Butt welding machine |
| 11/29/1990 | WO1990014194A1 Rack mountable weld controller |
| 11/29/1990 | WO1990014181A1 Welding machine for manufacturing wire nets |
| 11/28/1990 | EP0399996A1 Machine for welding wire mesh |
| 11/28/1990 | EP0399992A2 Gridwelding machine |
| 11/27/1990 | US4973815 Resistance welder using an inverter |
| 11/27/1990 | US4973814 Controller for resistance welding machine |
| 11/27/1990 | US4973813 System for monitoring weld parameters |
| 11/20/1990 | US4972047 Spot welding, protective coatings |
| 11/15/1990 | WO1990013387A1 Method and apparatus for selectively demetallizing a metallized film |
| 11/14/1990 | EP0397061A1 Copper alloy to be used as resistance welding electrode |
| 11/13/1990 | US4970361 Opening-degree detecting apparatus for welding gun |
| 11/13/1990 | US4969247 Cryogenic electrode replacement |
| 11/06/1990 | US4968971 Method of spot welding parts of an electromagnetic bell unit |
| 10/31/1990 | EP0395421A1 Feed device of welding bolt |
| 10/31/1990 | EP0394282A1 Z-bar for forming can material. |
| 10/31/1990 | DE4011485A1 Measuring temp. during coupler welding to solar cell - irradiating solar cell with light, measuring idle voltage, and deriving solar cell temp. |
| 10/30/1990 | US4966506 Welding tip dresser |
| 10/30/1990 | US4966504 Electrode tip dresser and holder assembly |
| 10/23/1990 | US4965860 Capacitor type welding power unit |
| 10/23/1990 | CA1275454C Method and apparatus for connecting a hollow member to an inner member |
| 10/16/1990 | US4963712 Spot welder |
| 10/16/1990 | US4963707 Resistance welding control system |
| 10/10/1990 | EP0391551A1 Composite weld gun and method of making same |
| 10/05/1990 | CA2012454A1 Tool holding apparatus |
| 10/04/1990 | DE3910055A1 Method for connecting wire ends to connecting elements |
| 10/03/1990 | EP0389704A1 Welder apparatus |
| 10/03/1990 | EP0389625A1 Process for resistance diffusion junction |
| 10/03/1990 | EP0389558A1 Process and apparatus for producing spirally-seamed metal tubing |
| 10/02/1990 | US4960968 Bonding method of binding strap end portions by spot-welding |
| 10/02/1990 | US4959989 Force multiplying press |
| 09/27/1990 | DE4008088A1 Robotic welding unit with pincer electrode arms - has piston-cylinder or mechanical means to compensate for force exerted by electrodes on workpiece |
| 09/26/1990 | EP0389260A1 Pressure-applying device for resistance welding |
| 09/26/1990 | CN2062668U Tri-phase powered butt-welding machine |
| 09/25/1990 | US4959519 Controlled pressure butt welding process and apparatus for carrying it out |
| 09/25/1990 | US4958972 Breakable composite drill screw |
| 09/24/1990 | CA2012575A1 Pressure applying device for resistance welding |
| 09/21/1990 | WO1990011160A1 Variable pitch spot welding gun device for welding robot |
| 09/21/1990 | CA2028812A1 Variable-pitch spot welding gun assembly for a welding robot |
| 09/20/1990 | DE3840637A1 Method and apparatus for dehumidifying a line system as well as an actuating element to be dehumidified according to the method |
| 09/18/1990 | US4958056 Electrode holder |
| 09/18/1990 | US4956912 Universal tool holder |
| 09/11/1990 | US4956536 Device for pre-calibrating hollow cylindrical bodies in seam welding machines |
| 09/11/1990 | US4955773 Decorative capped wheel nut and method of making same |
| 09/07/1990 | WO1990009861A1 Method of flash-butt contact welding of a pair of parts |
| 09/04/1990 | US4954690 Modular welding gun |
| 09/04/1990 | US4954687 Resistance welding electrode and process |
| 09/04/1990 | US4954686 High speed RMS control apparatus for resistance welders and high speed RMS control method thereof |
| 08/29/1990 | EP0384485A1 Process for resistance welding wires, crossing one another, together, especially in the production of orthodontic holding and supporting elements, and welding apparatus for carrying out such a process |
| 08/29/1990 | EP0384464A1 Method and apparatus for resistance welding |
| 08/23/1990 | DE3920715A1 Verfahren zum kontinuierlichen schweissen von zylindrischen gehaeusekoerpern und die entsprechende maschine zur durchfuehrung Method for continuous welding of cylindrical gehaeusekoerpern and the corresponding machine for carrying out |
| 08/22/1990 | EP0383060A1 Electrode for the resistance welding of coated steel sheets, and method for its production |
| 08/22/1990 | CN1009280B Method of preventing sag of panel and apparatus therefor |
| 08/21/1990 | US4950865 Method and apparatus for forming thermocouple junctions |
| 08/21/1990 | US4950348 Method for joining structural elements by heating of a binder |
| 08/15/1990 | CN2060381U Eccentric wheel type reinforcing bar butt-welder mould clamps |
| 08/15/1990 | CN1009172B Conveyor device for can bodies in can welding machine |
| 08/15/1990 | CN1009171B Rounding apparatus for can welding machine |
| 08/09/1990 | WO1990008722A1 Feeder for punched parts |
| 08/08/1990 | EP0381312A1 Resistance welding apparatus |
| 08/07/1990 | US4947024 Welding apparatus coated with spatter-resistant and electrically conductive film |
| 08/07/1990 | US4947019 Composite electrode for resistance welding |
| 08/07/1990 | US4947018 Retracting rocker unit |
| 08/07/1990 | US4947017 High strength, lightweight |
| 08/01/1990 | EP0379596A1 Installation for pressure welding of parts heated by an arc moving in a magnetic field |