| Patents for B23K 9 - Arc welding or cutting (32,679) |
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| 08/17/1991 | WO1991012922A2 Alternative current source for welding |
| 08/14/1991 | EP0441337A2 Apparatus and method of controlling a welding cycle |
| 08/14/1991 | EP0441262A1 Titanium carbide modified hardfacing for use on bearing surfaces of earth boring bits |
| 08/14/1991 | DE4003885A1 Arc cutting torch - designed to avoid overheating of and oxygen leakage to current contact nozzle |
| 08/14/1991 | DE4003883A1 Arc cutting torch - designed to avoid overheating of and oxygen leakage to electrode wire current contact region |
| 08/14/1991 | CN2082654U Electricity-saving device for ac/dc dual-purpose electric welder |
| 08/14/1991 | CN1053829A Process for manufacturing or repairing large bush |
| 08/14/1991 | CN1053760A Electric arc spraying of reactive metals |
| 08/13/1991 | US5040125 Positional information detecting method in arc welding |
| 08/13/1991 | US5040124 Positional information detecting method in arc welding |
| 08/13/1991 | US5039835 Electric stud-welding device |
| 08/13/1991 | US5038640 Titanium carbide modified hardfacing for use on bearing surfaces of earth boring bits |
| 08/13/1991 | CA2032064A1 Stud welding system |
| 08/09/1991 | CA2035285A1 Titanium carbide modified hardfacing for use on bearing surfaces of earth boring bits |
| 08/08/1991 | WO1991011290A1 Imaging device |
| 08/08/1991 | WO1991011286A1 Weld shroud |
| 08/07/1991 | EP0439975A1 Mechanic system for automatically guiding one or several burners of an arc welding appliance |
| 08/06/1991 | US5038292 Positional information detecting method in arc welding |
| 08/06/1991 | US5037024 Method of splicing metal webs |
| 08/06/1991 | US5036754 Autotracking fume extraction exhaust hood |
| 08/01/1991 | WO1991011271A1 Device and method for ventilation |
| 08/01/1991 | DE4002808A1 Plasma torch with hollow rotating electrode |
| 08/01/1991 | CA2050474A1 Device and method for ventilation |
| 07/31/1991 | EP0439179A1 Method of improving qualities of materials and wires used therefor |
| 07/31/1991 | EP0439031A1 Method of welding clad steel |
| 07/31/1991 | CN2081774U High-frequency impulse welder with fet |
| 07/31/1991 | CN1053380A Electrode for plasma arc torch |
| 07/31/1991 | CN1013379B Rare earth tungsten electrode material and its production method |
| 07/30/1991 | US5036176 Plasma arc cutter and method of controlling the same |
| 07/30/1991 | US5035579 Vanes Made Of Rolled Steel Plates; Hydroelectric Power Generation |
| 07/30/1991 | US5035355 Method for the production of a warp beam, and warp beam so produced |
| 07/30/1991 | CA1287120C High frequency arc stabilizer |
| 07/30/1991 | CA1287073C Repair of a member having a projection |
| 07/25/1991 | WO1991010531A1 Method for determining location of a sheet edge |
| 07/25/1991 | DE4032095A1 Electric welding appts. - comprises cube frame to support components in easily-assembled unit |
| 07/25/1991 | DE4001825A1 Anticorrosion coated steel pipe welding |
| 07/24/1991 | EP0437915A2 Electrode for plasma ARC torch |
| 07/24/1991 | EP0437573A1 Stud welding machine with a plurality of welding outputs for welding guns of different polarity for various welding operations. |
| 07/24/1991 | CN2081592U High-capacity one-phase power supply connecting plug and socket |
| 07/24/1991 | CN2081328U Tapping carbon arc gouging machine |
| 07/23/1991 | US5034593 Carbon, graphite and ceramic fibers with silicon nitride, silicon carbide, boron nitride and/or sialon coatings |
| 07/23/1991 | US5034592 Process and apparatus for reducing slag build-up on chute surfaces |
| 07/23/1991 | US5033555 Fluid cylinder powered tool |
| 07/17/1991 | CN2080885U Light rod-like full-position welding tongs |
| 07/17/1991 | CN2080884U Multipurpose welding gun with inert gas |
| 07/17/1991 | CN2080883U Remote-regulating apparatus for current of electric welder |
| 07/16/1991 | US5031816 Control rod canopy seal positioning and welding system |
| 07/11/1991 | WO1991009980A1 Production of anticorrosive and antiwearing alloy |
| 07/11/1991 | DE4024309A1 Welding scale inhibitors for resistance or arc welding - contains reaction prod. of tetra:alkyl silicate and water, or tetra:alkyl silicate, tri:alkyl borate and water |
| 07/10/1991 | EP0436021A1 Plasma-arc cutting machine and a method of controlling the same |
| 07/10/1991 | CN2080438U Energe-saving multipurpose electric welder |
| 07/10/1991 | CN2080437U 空气等离子切割机 Air Plasma Cutting Machine |
| 07/10/1991 | CN1013084B Method of welding inside groove machined in solid steel part, and utilization of the method for repairing cracked rotor |
| 07/10/1991 | CA2032957A1 Quick setting angle device for a welding torch |
| 07/09/1991 | US5030817 Apparatus for overhead submerged arc welding |
| 07/09/1991 | US5030815 Apparatus for controlling a welding tool |
| 07/09/1991 | US5030812 Method for one-side root pass welding of a pipe joint |
| 07/09/1991 | CA1285987C Switching mode power supply |
| 07/09/1991 | CA1285782C Cylindrical freezing drum for slice ice making machines and a method of producing the drum |
| 07/05/1991 | WO1991010201A1 Distributed processing control system for automatic welding operation |
| 07/05/1991 | WO1991009700A1 Method of operation for high speed automatic welding |
| 07/04/1991 | DE3942271A1 Repair method for gas turbine flame tubes - involves cutting away damaged part and welding on new ring |
| 07/03/1991 | EP0435673A2 Power source apparatus for alternating-current arc welding, capable of supplying an alternating-current welding current having any waveform |
| 07/03/1991 | CN2080010U Energy-saving electric arc welding machine |
| 07/03/1991 | CN2080009U Plasma arch cutting machine with automatic protecting function |
| 06/27/1991 | WO1991008859A1 Alignment apparatus for pipe welding |
| 06/27/1991 | DE3941980A1 Flame cutter thermal protection - has integrated coolant flow round jet |
| 06/26/1991 | EP0434637A2 An articulated coupling for supplying electrical energy and cooling liquid to a welding gun |
| 06/26/1991 | EP0434246A2 Method and apparatus for producing tape superconductors |
| 06/26/1991 | EP0434127A2 Bearings |
| 06/26/1991 | EP0433747A1 Wire electrode for spark-erosive cutting and method for his fabrication |
| 06/26/1991 | CN2079553U Portable light-gauge rectification arc welding machine |
| 06/25/1991 | US5026968 Welding electrode tip cracking apparatus and method |
| 06/25/1991 | CA1285127C Methods for weld repairing hollow, air cooled turbine blades and vanes |
| 06/21/1991 | WO1991008857A1 Weakening wire supplied through a wire bonder |
| 06/21/1991 | WO1991008856A1 An electric welding robot and a method for welding by using the robot |
| 06/21/1991 | CA2071219A1 Weakening wire supplied through a wire bonder |
| 06/21/1991 | CA2045482A1 Electric welding robot and a method for welding by using the robot |
| 06/19/1991 | EP0433179A1 Procedure for replacing a heater of a pressurizer in a nuclear reactor and device used in such a procedure |
| 06/19/1991 | CN2079099U Dc arc voltage controlled wire feeding machine for weldering |
| 06/19/1991 | CN1012885B Welding agent and its use for reparing cast-iron part |
| 06/19/1991 | CA2025254A1 Method and apparatus for producing tape superconductors |
| 06/18/1991 | US5025127 Electronic welding station with AC and reversible polarity DC outputs |
| 06/18/1991 | US5025126 Articulated support arm |
| 06/18/1991 | US5024582 Steam turbine rotor having graded weldments |
| 06/18/1991 | US5024371 Welding process |
| 06/13/1991 | CA2005430A1 Method for pressure welding of parts heated with an arc moving in magnetic field |
| 06/12/1991 | CN2078669U Anti-electricshocking protection of ac arc welder |
| 06/12/1991 | CN1052168A High-low temp. rotor for turbines |
| 06/11/1991 | US5023425 Alloy with high thermoconductivity, oxidation resistance, melting point and work function |
| 06/11/1991 | US5022581 Welding parts having different thermal expansions |
| 06/11/1991 | CA1284825C Welding together of planar lengths of metal |
| 06/05/1991 | EP0429900A2 Method for manufacturing hollow valves of piston motors |
| 06/05/1991 | CN1051876A Three phases sysmetrical taps rectifying are welder |
| 06/04/1991 | US5021624 Cutting tools for conventional and MIG electric welders |
| 06/04/1991 | US5021149 Process and device for processing granulated materials |
| 05/30/1991 | WO1991007249A1 Nozzle structure in welding gun |
| 05/29/1991 | EP0428755A1 Profile control method for welding line |
| 05/28/1991 | US5019687 Welding system and apparatus |
| 05/28/1991 | US5018705 Break away torch holder for cutting machines |