| Patents for B23K 9 - Arc welding or cutting (32,679) |
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| 12/13/1989 | CN2049165U Electricity-saving controller during no-load of a.c. arc welder |
| 12/13/1989 | CN1006045B Torch for welding |
| 12/12/1989 | US4887046 Apparatus for linearizing the output of an amplifier without using feedback |
| 12/07/1989 | DE3817833A1 Apparatus for the automatic manipulation of tools |
| 12/06/1989 | EP0344528A2 Apparatus for welding an end plug of a burnable neutronsabsorber rod with a reduced diameter trailing shoulder to a tube. |
| 12/06/1989 | EP0344527A2 Nuclear fuel rod end plug welding apparatus and method |
| 12/06/1989 | CN2048806U Automatic no-load breaker of three-phase silicon rectified welder |
| 12/05/1989 | US4885455 Process for terminating closed through-hole plasma arc welding |
| 12/05/1989 | US4885453 Brake for welding machine |
| 12/05/1989 | US4885044 Reducing embrittlement by reducing cooling rate |
| 11/29/1989 | EP0343587A1 Device for measuring the energy of an electrical arc |
| 11/29/1989 | CN2048411U Power supply controller for screw collume welding machine |
| 11/29/1989 | CN2048410U Power saving silicon rectifier arc welding machine |
| 11/29/1989 | CN2048409U Rectifier for field effect tube arc welding |
| 11/29/1989 | CN1037475A Improved turbine system having more failure resistant rotors and repair welding of low alloy ferrous turbine components by controlled weld build-up |
| 11/28/1989 | US4883939 Automatic tool changer for workpiece processing machines |
| 11/28/1989 | US4883938 Method and apparatus for automatically performing work on an object along a desired path |
| 11/23/1989 | EP0342691A2 Pulse arc discharge welding apparatus |
| 11/22/1989 | CN2048002U High efficiency air plasma metal cutting apparatus |
| 11/22/1989 | CN2048001U 自动碳弧气刨机 Automatic Gouging Machine |
| 11/21/1989 | US4881678 Process for the remote-controlled semi-automatic welding of two rotationally symmetrical components |
| 11/14/1989 | US4880958 Torch support for plasma cutting system |
| 11/14/1989 | US4880956 Device for radial machining and welding element |
| 11/09/1989 | DE3813291A1 Method for controlling and monitoring a number of identical or different bolt welding devices |
| 11/08/1989 | EP0340946A2 Heat insulating ceramic articles for use in exhaust channels in internal combustion engines and a process for producing the same |
| 11/08/1989 | EP0340939A1 Cooling workpieces being manufactured by shape melting |
| 11/08/1989 | CN1005694B Cored tubular electrode and method for electric-arc cutting of metals |
| 11/08/1989 | CN1005693B Cored tubular electrode and method for electric-arc cutting of metals |
| 11/07/1989 | US4879446 Internal wire guide for GTAW welding |
| 11/07/1989 | US4878953 Method of refurbishing cast gas turbine engine components and refurbished component |
| 11/01/1989 | CN2046788U Electric saver for electric welding machine |
| 11/01/1989 | CN2046787U 150 hz high-efficient, energy-saving arc welding machine |
| 10/31/1989 | US4877941 Power supply system for consumable electrode arc welding and method of controlling the same |
| 10/25/1989 | EP0338583A2 Procedure of and device for pulsating feeding of endless welding wire |
| 10/25/1989 | EP0338563A2 Stud welding pistol |
| 10/25/1989 | EP0338449A2 Anti-collision protective device for a torch |
| 10/25/1989 | EP0338078A1 Weaving welding with welding robot |
| 10/25/1989 | CN2046418U Cutting torch of air plasma cutter |
| 10/25/1989 | CN2046417U Controll equipment for teaching type pulse welding |
| 10/25/1989 | CN2046416U Three phase silicon rectifier welding set |
| 10/25/1989 | CN1036525A Connection method for usein strengthened of leakage magnetism type arc welders |
| 10/24/1989 | US4876433 Inverter controlled-type power source for arc welding |
| 10/24/1989 | US4876432 Method for controlling a penetration bead |
| 10/24/1989 | US4875615 Vapor plug for temporarily sealing or plugging a pipeline |
| 10/18/1989 | CN2046055U Labour-saving tin soldering set with flame-closing device |
| 10/18/1989 | CN2046054U Automatic stop energy-saving apparatus of non-load electric welding machine |
| 10/17/1989 | CA1262376A1 Cored tubular electrode and method for the electric- arc cutting of metals |
| 10/12/1989 | DE3810759A1 Method of welding pipes and webs to form a gas-tight pipe wall |
| 10/11/1989 | EP0336518A2 Portable smoke and gas dispeller |
| 10/11/1989 | EP0336174A2 A method and apparatus for controlling a manipulator |
| 10/11/1989 | EP0336161A1 Method for improving the fatigue strength of welded high strength steels |
| 10/11/1989 | EP0211852B1 Device for welding a cylindrical pipe |
| 10/11/1989 | CN2045677U Teleswitch for electric welder |
| 10/10/1989 | US4873419 Automatic welding apparatus for weld build-up and method of achieving weld build-up |
| 10/10/1989 | US4873412 Automatic feed apparatus, for fusion welding machine, and electrode holder therefor |
| 10/05/1989 | WO1989009110A1 Plasma-arc cutting machine and a method of controlling the same |
| 10/04/1989 | EP0335305A1 Closed enclosure forming device inside two metal pipe works to be connected by shielding gas arc welding |
| 10/04/1989 | CN2045344U Arc welding inverter with high frequency pulse |
| 10/04/1989 | CN1035974A Outer monitoring automatic welding machine for inner ring seam welding of container |
| 10/03/1989 | US4871898 Using shielding gas mixture of carbon dioxide, helium, and argon |
| 10/03/1989 | US4871895 Method and apparatus for welding a new stud on to the end of a broken off stud and new stud |
| 10/03/1989 | US4871624 Multilayer; magnetic base fused to thin metallic film |
| 10/03/1989 | US4870732 Stainless steel weld clad cylinder roller interconnected by a groove and gap also weld covered by stainless steel |
| 09/28/1989 | DE3808597A1 Device for guiding and directing spraying wires in electric-arc spray guns |
| 09/27/1989 | CN1035790A Touching welding holder of argon-arc welding of self-consuming electrode type |
| 09/26/1989 | US4870248 Arc welder with improved arc striking capability |
| 09/26/1989 | US4870247 Method and apparatus for controlling a welding robot forming a nonuniform weld satisfying predetermined criteria related to an interspace between elements being welded |
| 09/26/1989 | US4869417 Automatic build-up welding machine for track rollers |
| 09/26/1989 | US4869367 Welding wire container |
| 09/26/1989 | CA1261925A1 Shielding apparatus for metal processing operations |
| 09/26/1989 | CA1261006A1 Hybrid non-transferred-arc plasma torch system and method of operating same |
| 09/26/1989 | CA1260736A1 Robotic welding head cleaning apparatus |
| 09/21/1989 | WO1989008528A1 Arc cutting method and apparatus |
| 09/20/1989 | EP0333195A1 Method and Apparatus for Automatic Welding Control |
| 09/20/1989 | EP0332905A1 Welding electrode holding device with quick ejection of the worn out electrode |
| 09/20/1989 | EP0332875A2 More creep resistant turbine rotor, and procedures for repair welding of low alloy ferrous turbine components |
| 09/19/1989 | US4868649 Apparatus for the televisual monitoring of an arc welding operation |
| 09/19/1989 | US4868488 Use of a dielectric microwave resonator and sensor circuit for determining the position of a body |
| 09/19/1989 | US4868366 Arc welding capable of multi-mode welding |
| 09/19/1989 | US4867368 Apparatus for centering and clamping pipe workpieces to be welded to one another |
| 09/14/1989 | DE3824223C1 Device for feeding cold wire |
| 09/14/1989 | DE3807104A1 Contact nozzle |
| 09/14/1989 | DE3807103A1 Ignition method in MIG/MAG welding |
| 09/14/1989 | DE3739726A1 Building site electrical power generator for electrical loads and welding tasks |
| 09/14/1989 | DE3448124C2 Method of producing several surface sections |
| 09/13/1989 | EP0332220A2 Stud-welding gun |
| 09/13/1989 | EP0331947A1 Collet for electrodes in torches, especially in TIG torches |
| 09/13/1989 | CN2044201U 等离子割炬 Plasma torch |
| 09/12/1989 | US4866247 Apparatus and method of short circuiting arc welding |
| 09/12/1989 | US4866246 High rate deposition gas-metal-arc welding process |
| 09/12/1989 | US4866236 Flexible extendable backing shield for welding reactive metals |
| 09/08/1989 | WO1989008000A1 Vertical strip clad welding method and apparatus |
| 09/07/1989 | DE3805732A1 Plasma burner |
| 09/06/1989 | CN1005098B Gas-shielded arc welding apparatus |
| 09/05/1989 | US4864099 Water cooled semi-automatic welding gun |
| 09/05/1989 | US4864094 Process of fabricating a cutting edge on a tool and a cutting tool made thereby |
| 09/05/1989 | US4863214 Spacer tube matrix |
| 08/30/1989 | EP0330557A2 Frame for motorcycles |
| 08/29/1989 | US4861965 Method and apparatus for TIG welding |
| 08/24/1989 | WO1989007507A1 Weaving welding method |