| Patents for B23K 9 - Arc welding or cutting (32,679) |
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| 12/31/2008 | CN100446920C Pipe end seal method |
| 12/31/2008 | CN100446910C Boxing joint with excellent fatigue strength, method of manufacturing the boxing joint, and welded structure |
| 12/31/2008 | CN100446907C Device for cleaning the gas nozzle of a welding torch |
| 12/30/2008 | CA2509322C Dissimilar material weld joint formed by joining iron type material and aluminum type material, and weld joining method |
| 12/30/2008 | CA2476005C Mig welding machine having 115v inverter |
| 12/30/2008 | CA2336907C Device for plasma incision of matter with a specifically tuned radiofrequency electromagnetic field generator |
| 12/25/2008 | US20080318078 Alloy-Coated Boiler Part and Method of Welding Self-Fluxing Alloy-Coated Boiler Part |
| 12/25/2008 | US20080314887 Welding Method and Welding System With Determination of the Position of the Welding Torch |
| 12/25/2008 | US20080314885 System and Method for Battery-Assisted, Engine-Driven Welding-Type Process |
| 12/25/2008 | US20080314884 Method of Controlling Arc Welding and Welding Apparatus |
| 12/25/2008 | US20080314877 Plasma Keyhole Welding of Hardenable Steel |
| 12/25/2008 | US20080314876 Welding system and method having controlled liner contour and welding wire curvature |
| 12/24/2008 | WO2008156946A1 System and method for battery-assisted, engine-driven welding-type process |
| 12/24/2008 | WO2008155036A2 Base frame or engine rocker for a transmission-engine unit, and method |
| 12/24/2008 | WO2008137371A3 Welding system and method with improved waveform |
| 12/24/2008 | WO2008103508A3 Tig welding system and method |
| 12/24/2008 | EP2006045A2 Apparatus for preserving of welded joint portion and method therefor |
| 12/24/2008 | EP2004358A1 Apparatus and method for welding |
| 12/24/2008 | EP1744847A4 Cutting blade hard-facing method and apparatus |
| 12/24/2008 | DE102007028956A1 Method for weld pool manipulation, particularly for vertical weld seams with weld gap, involves creating magnetic field during welding of root seam in area around weld pool |
| 12/24/2008 | CN201168854Y Butt weld elbow welding machine |
| 12/24/2008 | CN201168849Y Apparatus for protecting welding gun joint |
| 12/24/2008 | CN201168848Y Multifunctional full-digitalized contravariant welding machine |
| 12/24/2008 | CN201168847Y Striking apparatus suitable for welding and cutting equipment |
| 12/24/2008 | CN101331000A Welding torch and end piece and also contact tube for a welding torch |
| 12/24/2008 | CN101330137A Apparatus for automatically spot-welding battery set electrode |
| 12/24/2008 | CN101327560A Method for producing two-stage type non-joint-cutting crystallizer sheathed tube for soft-contact electromagnetic continuous casting |
| 12/24/2008 | CN101327545A Real time technique for tracking weld joints of gas metal arc welding by magnetic controlled electric arc sensor |
| 12/24/2008 | CN101327544A AC output coordinating control method and control device |
| 12/24/2008 | CN101327543A Control method and system for terminal characteristics of CO2/MAG gas shielded welding power supply |
| 12/24/2008 | CN101327542A Control method and apparatus for processing striking and sticking thread of welding |
| 12/24/2008 | CN100445021C Welding repair method for specific steel and its welding wire |
| 12/24/2008 | CN100445020C Welded joint made of an austenitic steel |
| 12/24/2008 | CN100445012C Welding wire storage device |
| 12/24/2008 | CN100445011C Electrogas arc welding method for vertical line of large-scale floating roof tank reverse construction |
| 12/23/2008 | US7468494 Reaction enhancing gas feed for injecting gas into a plasma chamber |
| 12/23/2008 | CA2481969C Systems and methods for controlling pilot arc current in an arc cutting or welding machine |
| 12/23/2008 | CA2444365C Gas lens assembly for a gas shielded arc welding torch |
| 12/23/2008 | CA2400308C Methods and systems for fabricating spiral welded cylinders |
| 12/18/2008 | WO2008153007A1 Welded joint, steel floor plate and process for manufacturing steel floor plate |
| 12/18/2008 | WO2008152220A2 Method of making a liner for a pool, tank or containment enclosure |
| 12/18/2008 | WO2008151681A1 Method and device for controlling a power source and power source having such a device |
| 12/18/2008 | WO2008151393A1 Apparatus and method for monitoring welding |
| 12/18/2008 | WO2008130754A3 Synchronized multiple drive wire feed welding system and method |
| 12/18/2008 | US20080311413 Insulation Coating Composition for electrical steel |
| 12/18/2008 | US20080308541 Engine driven welding machine |
| 12/18/2008 | US20080308540 Engine driven welding machine |
| 12/18/2008 | US20080308539 Tandem welding carriage with changeable wheel configuration and modular construction |
| 12/18/2008 | DE102007028160A1 Verfahren und Vorrichtung zur Steuerung einer Stromquelle sowie Stromquelle mit einer derartigen Vorrichtung Method and apparatus for controlling a current source and current source with such a device |
| 12/17/2008 | EP2002917A1 Engine driven welding machine |
| 12/17/2008 | EP2001630A1 Method of cleaning a contact tube of a welding torch, and a welding torch and contact tube |
| 12/17/2008 | EP2001629A1 Method and apparatus for pulse welding |
| 12/17/2008 | EP1737607A4 Laser-hybrid welding with beam oscillation |
| 12/17/2008 | EP1575734B1 Protective cap for a contact pipe in a welding torch in addition to a welding torch equipped with said cap |
| 12/17/2008 | EP1027951B2 Arc welding monitoring device |
| 12/17/2008 | CN201164926Y Inner hole weld torch |
| 12/17/2008 | CN201164925Y Water-cooling conducting ring structure used on pipe-pipe welding head |
| 12/17/2008 | CN201164924Y Welding nail for electric arc stud welding |
| 12/17/2008 | CN201164923Y Maximum output current automatic control circuit for welder |
| 12/17/2008 | CN201164922Y Case type inverter welding power source |
| 12/17/2008 | CN201164921Y Continuance self-control fusion welding apparatus for solar energy heat collection plate |
| 12/17/2008 | CN101326029A Method of controlling arc welding |
| 12/17/2008 | CN101326028A Tandem arc welding device |
| 12/17/2008 | CN101323045A Welding gun for narrow cap gas-shield metal arc welding |
| 12/17/2008 | CN101323044A Thick-wall red copper and austenitic stainless steel non-prewarming arc melting and welding method |
| 12/17/2008 | CN101323043A Iron white copper and austenitic stainless steel arc melting and welding method |
| 12/17/2008 | CN101323042A Iron white copper and low-carbon steel dissimilar metal material arc melting and welding method |
| 12/17/2008 | CN101323041A Petroleum grief stem narrow cap pulse gas metal arc automatic welding method |
| 12/17/2008 | CN101323040A Steel finned tubular radiator nozzle and header automatic soldering technique as well as fixture |
| 12/17/2008 | CN101323039A Non-prewarming welding method for thick-wall red copper and low-carbon steel dissimilar metal material |
| 12/17/2008 | CN101323038A Engine driven welding machine |
| 12/17/2008 | CN101323037A Method for depositing a metallic substrate on a wall |
| 12/17/2008 | CN101323036A Method of in situ synthesizing ZrC composite coating for argon arc deposited ceramic stick |
| 12/17/2008 | CN100443242C Welding and deformation control method of large scale bulb tubular set and base |
| 12/17/2008 | CN100443233C Electric capacity energy storage direct discharge type movable nut welding machine and its special welding gun and technology |
| 12/17/2008 | CN100443232C Method for restoring slurry pump casing used for river and sea dredger |
| 12/17/2008 | CN100443231C Methods for installing and welding three-facet rubber tiles on liquidized natural gas ship |
| 12/16/2008 | US7465902 Wire feed control assembly |
| 12/16/2008 | US7465901 Power cord system for welding-type devices |
| 12/16/2008 | CA2454810C Removable panels for a welding-type machine enclosure |
| 12/13/2008 | CA2634859A1 Method for depositing a metallic substrate on a wall |
| 12/11/2008 | WO2008150639A1 Welding-type power source with interated open-circuit voltage controller |
| 12/11/2008 | WO2008150274A1 Gas less process and system including liquefied gas storage tanks |
| 12/11/2008 | WO2008109649A3 Fracture resistant friction stir welding tool |
| 12/11/2008 | US20080302773 Arc Welding Robot |
| 12/10/2008 | EP2000246A1 Welding apparatus |
| 12/10/2008 | EP2000245A2 Welding method |
| 12/10/2008 | EP1622737B1 Process for coating different parts of a welding torch with an artificial Patina-oxide layer |
| 12/10/2008 | EP1379355B1 Welding torch |
| 12/10/2008 | EP1294526B1 Weld spatter removal device and a method of removig spatter from an arc welding torch nozzle |
| 12/10/2008 | CN201161335Y Preload rotary electrode soldering bench |
| 12/10/2008 | CN201161332Y Numerical control case type integrated machine for installing and welding beam |
| 12/10/2008 | CN201161328Y Weight empty power-off controller of electric welder |
| 12/10/2008 | CN201161327Y Energy conservation control device of submerged arc welding machine |
| 12/10/2008 | CN201161326Y Control circuit of gas-protecting welding machine |
| 12/10/2008 | CN101319323A Broadband electrical arc powder melting gun |
| 12/10/2008 | CN101318254A Thick steel plate buried arc welding method for high-strength bridge |
| 12/10/2008 | CN101318253A Inside-tube gas flushing device for gas shielded arc welding |
| 12/10/2008 | CN101318252A Corrugated plate welding machine |
| 12/10/2008 | CN101318251A Negative feedback inversion type direct-current welding machine |