| Patents for B23K 9 - Arc welding or cutting (32,679) |
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| 05/11/1999 | US5902150 Connector for a power supply |
| 05/11/1999 | US5901988 Structure for coupling pipe with breeches pipe |
| 05/11/1999 | CA2160936C Underbead weld shield method and apparatus |
| 05/06/1999 | WO1999021677A1 Process for keyhole welding |
| 05/06/1999 | WO1998059164A8 Lng fuel storage and delivery systems for natural gas powered vehicles |
| 05/06/1999 | EP0912287A1 Welding torch with a contact socket and a feed device |
| 05/06/1999 | DE19834609A1 Torch for a compact welding unit |
| 05/05/1999 | CN2317039Y Magnetic earthing device for electric welder negative electrode electric welding handle wire |
| 05/05/1999 | CN2317038Y Current indicator |
| 05/05/1999 | CN2317037Y Electrode holders |
| 05/05/1999 | CN2317036Y Carbon dioxide welding and air plasma arc cutting dual-purpose machine |
| 05/05/1999 | CN2317035Y Carbon dioxide and d. c. tungsten argon arc welding dual-purpose machine |
| 05/05/1999 | CN2317034Y Multifunctional cutting-welding machine |
| 05/05/1999 | CN1215641A Automatic carbon dioxide gas arc double-filament short transition narrow gap all position welding equipment |
| 05/05/1999 | CN1043197C Method for on-line synchronouslly deposition of laser welding seam surface of coated steel sheet |
| 05/04/1999 | US5900722 For producing a signal simulating a desired ac waveform |
| 05/04/1999 | US5900167 Narrow prep MIG welding |
| 05/04/1999 | US5899537 Wheel for an automobile and a manufacturing method therefor |
| 05/04/1999 | US5898994 Method for repairing a nickel base superalloy article |
| 04/29/1999 | WO1999020426A1 Torch |
| 04/28/1999 | EP0911107A2 Control apparatus of arc welding robot |
| 04/28/1999 | EP0911106A1 Protective lining for pressure equipment which can be used in processes for the synthesis of urea |
| 04/28/1999 | CN2316080Y 焊接机 Welding machine |
| 04/27/1999 | US5897801 Cleaning, heating at stress relieving temperature, adjusting temperature, welding in inert atmosphere, heating a second time |
| 04/27/1999 | US5896960 Welded rod fitting damper manufacture |
| 04/21/1999 | EP0909604A1 Modulated MIG spray welding method and apparatus |
| 04/21/1999 | EP0797490B1 Welding method, and welding device for use therein, and method of analysis for evaluating welds |
| 04/21/1999 | CN2314884Y Electric welding holder |
| 04/21/1999 | CN2314883Y Leakage and shock-proof protector for combined arc welder |
| 04/21/1999 | CN2314882Y Mold repairing machine for inert gas protection welding of micro pulse rotary melting electrode |
| 04/21/1999 | CN2314881Y Reversible combined multiple head DC welding machine |
| 04/21/1999 | CN1214285A Energy-saving welding rod |
| 04/21/1999 | CN1043018C Welding deformation reducing method for one-side strap joint welding |
| 04/16/1999 | CA2250506A1 Modulated spray mig welding process and device |
| 04/14/1999 | EP0908261A1 Welding head |
| 04/14/1999 | CN2313699Y Multifunctional oscillator of welder |
| 04/14/1999 | CN2313698Y Electrode |
| 04/14/1999 | CN2313697Y Multi-winding electric welder |
| 04/13/1999 | CA2160866C Method and apparatus for receiving a universal input voltage in a welding power source |
| 04/08/1999 | WO1999016571A1 Improved induction heating apparatus and method for pipeline welding operations |
| 04/07/1999 | EP0907118A2 Method and devices for the standardisation of the control functions of welding machines and welders fitted with the said devices |
| 04/07/1999 | EP0906803A2 Engine driven arc welder |
| 04/07/1999 | CN1212925A Sheet having multilayer structure, called sandwich sheet |
| 04/07/1999 | CN1212918A Automatic welding equipment with non-uniform compression medical corn welding wire electric arc narrow space |
| 04/06/1999 | US5892199 GTA welding |
| 04/01/1999 | DE19738785A1 Electronic welding energy source |
| 03/31/1999 | EP0904885A2 Method for hardening nickel alloy welding |
| 03/31/1999 | EP0904883A2 Method for initiating an arc between a workpiece and a melting electrode |
| 03/31/1999 | EP0904173A1 Improved welding apparatus and method |
| 03/31/1999 | CN2312093Y Arc welding machine with medium frequency electric generating and rectification |
| 03/31/1999 | CN1042707C Continuous welding electrode |
| 03/31/1999 | CN1042706C Method for manufacturing continuous coiled tubing and coiled tube |
| 03/30/1999 | US5889251 Apparatus for narrow groove welding |
| 03/30/1999 | CA2047703C Distributed processing control system for automatic welding operation |
| 03/25/1999 | DE19739895A1 Device for removing oxide layer from cut surface of thin- walled strip metal blanks |
| 03/24/1999 | EP0903422A1 Coating parent bore metal of engine blocks |
| 03/24/1999 | EP0903196A1 Welding wire supplying method and apparatus for TIG welding |
| 03/24/1999 | EP0903195A1 System for the remote setting, regulation and control of the functions of welding machines |
| 03/24/1999 | EP0640023B1 Turbine blade repair |
| 03/24/1999 | CN1042604C CO2 protecting welding stick for repairing defect on machined plane of iron casting |
| 03/24/1999 | CN1042601C Method for controlling inverse arc-welding power source time-varying output characteristics for carbon dioxide welding |
| 03/23/1999 | US5887122 Tracking control method for robot with weaving action |
| 03/23/1999 | US5886504 Throttle controlled generator system |
| 03/18/1999 | WO1999012691A1 Arrangement with transfer of measured values |
| 03/18/1999 | WO1999012690A1 Arc ignition arrangement |
| 03/18/1999 | WO1998059205A3 Improved process for liquefaction of natural gas |
| 03/18/1999 | WO1998059195A3 Systems for vehicular, land-based distribution of liquefied natural gas |
| 03/18/1999 | DE19757051C1 Recovery of shield gases used in welding and other processes |
| 03/18/1999 | DE19738453A1 Inverter current source |
| 03/17/1999 | EP0901865A2 Welding control method and apparatus |
| 03/17/1999 | EP0740591B1 Two or multi-phase coating |
| 03/17/1999 | CN1042569C Hard-face welding-patching transport steel pipe and its producing method and equipment |
| 03/11/1999 | WO1999012060A1 Apparatus and method for protecting eyes from ultraviolet and bright visible light |
| 03/11/1999 | WO1999011967A1 Support arm |
| 03/11/1999 | WO1999011417A1 Flow nozzle |
| 03/11/1999 | WO1998059164A3 Lng fuel storage and delivery systems for natural gas powered vehicles |
| 03/11/1999 | DE19837410A1 Apparatus for mechanical testing of the joint quality of a bolt welded onto a sheet-metal component |
| 03/11/1999 | DE19739217A1 Unit for welding under protective gas |
| 03/11/1999 | CA2247215A1 Process and device for removing oxide skin from metal strips |
| 03/10/1999 | EP0900621A2 Power supply unit |
| 03/10/1999 | EP0900620A1 Arc start ancillary apparatus |
| 03/10/1999 | CN2310413Y Multi-function power supply equipment |
| 03/10/1999 | CN1210048A Method for welding 0.5mm cadmium plate by dot argon arc welding |
| 03/10/1999 | CN1210047A Arc welding apparatus for constant current and voltage characteristics cost and weight of which being reduced |
| 03/10/1999 | CN1210046A Multifunctional system for plasma cutting and electrical welding with gasoline and hydrogen-oxygen sources |
| 03/09/1999 | US5879132 Stainless steel type 13Cr5Ni having high toughness, and usage of the same |
| 03/02/1999 | US5877960 Method and apparatus for monitoring and positioning a beam or jet for operating on a workpiece |
| 03/02/1999 | US5877952 Power supply apparatus with initial arcing sustaining circuit |
| 03/02/1999 | US5877468 Method and system for welding railroad rails |
| 03/02/1999 | US5875830 Metallic articles having heat transfer channels and method of making |
| 02/25/1999 | WO1999009424A1 Electric arc monitoring systems |
| 02/25/1999 | WO1999009422A1 Electric arc monitoring systems |
| 02/25/1999 | WO1999008827A1 Apparatus for amorphous bonding of tubulars |
| 02/25/1999 | DE19753156C1 Metal material soldering process |
| 02/25/1999 | DE19733638A1 Method and apparatus for controlling a welding unit |
| 02/24/1999 | EP0897775A1 Machining vehicle |
| 02/24/1999 | CN2308468Y Dual-head rotating electric welding tongs |
| 02/24/1999 | CN2308467Y Four-fork welding handle |
| 02/24/1999 | CN1208775A Nickel-based alloy and welding electrode made of nickel-based alloy |
| 02/24/1999 | CN1208679A Arc start ancillary apparatus |