| Patents for B23K 5 - Gas flame welding (1,229) |
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| 01/27/1999 | CN1205925A Centralized oil gasifier and its application in industrial mass hot cutting |
| 12/29/1998 | US5853655 Magnetic wheel guided carriage with positioning arm |
| 12/16/1998 | CN2300470Y 氢氧焊割机 Hydrogen welding machine |
| 11/25/1998 | CN2298094Y Oxyhydrogen plasma welding cut machine |
| 11/18/1998 | CN2297272Y Hydrolytic oxyhydrogen cutting and welding machine |
| 11/18/1998 | CN2297271Y Fully automatic oil-vapor-oxygen vaporization cutting and welding machine |
| 11/11/1998 | CN2296793Y Electrolyzing water hydrogen oxygen welding cutting machine |
| 11/11/1998 | CN2296792Y Cutting welder |
| 11/11/1998 | CN2296791Y Gasoline cutting welder |
| 10/28/1998 | CN2295553Y Gasoline cutting apparatus |
| 10/28/1998 | CN2295552Y Water cooling hydrogen-oxygen welding and cutting apparatus |
| 10/22/1998 | WO1998046367A1 Lance for heating or ceramic welding |
| 10/22/1998 | CA2286295A1 Lance for heating or ceramic welding |
| 10/07/1998 | CN2293412Y Gasoline & oxygen cutting & welding apparatus |
| 10/07/1998 | CN2293411Y Multiple oil & gas oxygenation cutting & welding equipment |
| 09/23/1998 | EP0865340A1 Method for attaching a first element of a first material to a second element of a second material by a welding process |
| 09/23/1998 | CN2291988Y Improved hydrogen-oxygen gas cutting, welding machine |
| 09/16/1998 | CN1192951A Multi-oil-gas oxygen-added cutting welding apparatus |
| 08/26/1998 | CN2288810Y Hydraulic fixture for reinforcing bar pressure welding |
| 08/12/1998 | CN2287533Y Single movement quantitative burning and heating decive for gas welder |
| 08/12/1998 | CN1190045A Gasoline-oxygen cutting welder |
| 07/29/1998 | CN2286657Y Water electrolytic hydrogen-oxygen welding cut machine |
| 07/22/1998 | CN1039206C Spraying welding cut device |
| 07/15/1998 | CN2286085Y Arm type profiling flame cutting machine |
| 06/17/1998 | CN1184727A Oxygen-propane flame welding tech. and the nozzle therefor |
| 05/13/1998 | CN2281234Y Energy saving gas cutting apparatus |
| 05/13/1998 | CN2281233Y Automatic CO2 gas protection welder for bend pipe and flange angular joint |
| 03/04/1998 | CN1174772A Technology for finishing surface defect on iron casting |
| 02/25/1998 | CN2275000Y Water electrolytic hydrogen oxygen gas welding cutter |
| 02/11/1998 | CN2274112Y Gas mixer for welding |
| 02/11/1998 | CN2274111Y Porous flame-welding heater |
| 02/11/1998 | CN2274110Y Welding-cut dvice of propane, natural gas and liquified gas |
| 01/28/1998 | EP0758283B1 Fabrication of tubular wall thrust chambers for rocket engines using laser powder injection |
| 01/07/1998 | CN2271943Y Safety flame retardant means for oxy-hydrogen welding cutter |
| 12/17/1997 | CN2270589Y Ultrasonic microspotwelding transducer |
| 12/10/1997 | CN2269918Y Efficient energy-saving oxygen cutting or welding device using oil gas |
| 10/15/1997 | CN2264633Y Pneumatic cart type torch-cutting machine |
| 10/01/1997 | EP0746441A4 Method and apparatus for torch working materials |
| 09/18/1997 | DE19609848A1 Oxy-propane welding torch for steel welding |
| 09/03/1997 | CN2261309Y Adjustable safety and energy saving acetylene generator |
| 08/13/1997 | CN2259253Y Special cutting welding baking tip for liquefied petroleum welding and cutting gas |
| 07/09/1997 | CN2257508Y 多功能喷枪 Multifunction gun |
| 06/18/1997 | CN2256357Y Hydroxygen source welding and cutting machine |
| 06/04/1997 | CN2255328Y Hydrogen-energy welding cut machine |
| 05/21/1997 | CN2254387Y Oxyhydrogen gas cutting, gas welder |
| 05/14/1997 | CN2254019Y 汽油氧气焊炬 Gasoline oxygen torch |
| 05/07/1997 | CN2253682Y Hydrogen-oxygen cutting-welding machine |
| 05/01/1997 | WO1997015418A1 Method for attaching a first element of a first material to a second element of a second material by a welding process |
| 04/08/1997 | US5618456 Black copper oxide layer formed on surface of nozzle by chemical conversion treatment inhibits sticking of splatters |
| 02/19/1997 | EP0758283A1 Fabrication of tubular wall thrust chambers for rocket engines using laser powder injection |
| 02/12/1997 | CN2247181Y Controller for hydrogen oxygen welding and cutting machine |
| 02/12/1997 | CN1142793A Method and apparatus for torch working materials |
| 01/22/1997 | CN2245512Y Gas cylinder portable welding equipment |
| 01/15/1997 | CN2244978Y Oxyhydrogen welding and cutting machine |
| 01/08/1997 | CN2244450Y Oxyhydrogen welding, cutting and welding equipment |
| 12/25/1996 | CN2243363Y Oxyhydrogen cutting machine |
| 12/18/1996 | CN2242755Y Moving-type gas-pressure welding apparatus for steel rail |
| 12/11/1996 | EP0746441A1 Method and apparatus for torch working materials |
| 11/20/1996 | CN2240414Y Multi-function temp.-control fusion-welding machine |
| 11/13/1996 | CN1135395A Method for welding mending local defect of gold-tungsten bush |
| 11/06/1996 | CN2239316Y Portable welding automatic mixer |
| 10/23/1996 | CN2238106Y Steel pipe welder with porous flame |
| 10/16/1996 | CN1133619A Improvements in electrolysis systems |
| 10/02/1996 | EP0734782A2 Shock-stabilized supersonic flame-jet method and apparatus |
| 10/02/1996 | CN2236379Y Bidirectional observating controlling box |
| 09/04/1996 | CN2234326Y Electronic oxyhydrogen welding cutting machine |
| 08/28/1996 | CN2233809Y Magnetic gas-welding cutting machine |
| 08/21/1996 | CN2233299Y Autoignition welding gun |
| 08/21/1996 | CN1129161A Bead-welding technology for repairing large gear |
| 08/10/1996 | CA2142167A1 Mounting drill buttons |
| 07/31/1996 | CN2231955Y hydrogen energy welding cutting machine |
| 07/02/1996 | US5531590 Shock-stabilized supersonic flame-jet method and apparatus |
| 06/19/1996 | CN2229322Y Oxyhydrogen electrolytic-welding cutter |
| 06/12/1996 | CN2228818Y Multifunctional electric and gas welder |
| 04/30/1996 | US5511764 Self-exhausting welding station |
| 03/13/1996 | CN2222027Y Mixed gas welder |
| 12/20/1995 | CN2215372Y Multi-function hydrogen-oxygen source flame arc-welding machine |
| 12/06/1995 | CN1030438C Method for soldering aluminium-copper heterogenous metal |
| 11/30/1995 | DE19515996A1 Improving surface properties of nozzle or end piece of gas welding device |
| 11/09/1995 | WO1995029785A1 Fabrication of tubular wall thrust chambers for rocket engines using laser powder injection |
| 10/11/1995 | EP0676255A1 A system for controlling fusion welding with filler material |
| 09/20/1995 | CN2208243Y Controlling circuits for hydrogen-oxygen cutting welder |
| 09/20/1995 | CN1029796C Technology for making or repairing large bush |
| 09/13/1995 | CN2207257Y Integral electrolytic welding cutter |
| 08/16/1995 | CN2205273Y High efficiency safety hydroelectrolytic hydrogen-oxygen welding and cutting machine |
| 08/09/1995 | CN2204678Y Multifunctional cutting machine |
| 08/09/1995 | CN2204677Y Multifunctional welder |
| 07/26/1995 | CN2203910Y Gas flame welding and cutting machine with water electrolytic means with no pump |
| 07/12/1995 | CN2203201Y Controllable oxyhydrogen welding and cutting machine |
| 06/28/1995 | CN1104140A Babbit fusion plating technology |
| 06/22/1995 | WO1995016539A1 Method and apparatus for torch working materials |
| 05/17/1995 | CN2197161Y Gas generator for petroleum welder |
| 05/10/1995 | CN1028355C Method for gas welding with water resolved into hydrogen and oxygen |
| 04/26/1995 | CN2195402Y Electric and gas welding two-purpose machine |
| 04/05/1995 | CN2193785Y Gas welding and cutting device for liquid fuel |
| 03/29/1995 | CN2193221Y Hydrogen/oxygen flame welding and cutting machine |
| 03/08/1995 | CN2191056Y 氢氧焊割机 Hydrogen welding machine |
| 02/08/1995 | CN2189025Y Automatic oxygen-hydrogen flame cutting machine |
| 02/01/1995 | CN2188444Y 氢氧焊割机 Hydrogen welding machine |
| 01/31/1995 | US5385336 Method and apparatus for torch working materials |