| Patents for B23K 7 - Cutting, scarfing, or desurfacing by applying flames (3,809) |
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| 04/18/1990 | CN2056107U Air-flow pulsating cutting torch for cast iron |
| 04/10/1990 | US4915618 Igniter for thermal lance |
| 04/04/1990 | CN2055430U Multipurpose cutting torch auxilliary device |
| 03/21/1990 | CN1040532A Cuting method by using liquid oxygen |
| 03/14/1990 | EP0357806A1 In case of need changeable flame cutting machine for steel continuous casting plants |
| 03/14/1990 | CN2054387U Natural gas-oxygen cutting blowpipe |
| 03/14/1990 | CN2054386U Miniature acetylene welding and cutting unit |
| 03/13/1990 | US4908070 Heating to ignition temperature, cutting with high pressure jet of liquid oxygen, wherein stationary cutting tip is mounted downstream from casting installation; casting is preheated prior to cutting |
| 02/28/1990 | CN2053558U Emanation-suction type cutting welding tip |
| 02/21/1990 | CN2053126U Fluxing device for travelling gas cutting |
| 02/21/1990 | CN2053125U Automatic cutter for saddle groove |
| 02/21/1990 | CN1006867B Exothermic cutting electrode |
| 02/14/1990 | EP0354350A2 Process for autogenous cutting with liquid oxygen |
| 02/13/1990 | US4900891 Laser ice removal system |
| 02/13/1990 | US4899993 Breakaway tool assembly |
| 02/13/1990 | CA1265738A1 Thermal cutting torch |
| 01/30/1990 | CA1265209A1 Process to remove contaminants, particularly rust/from metallic surfaces |
| 01/17/1990 | EP0350645A2 Process and device for flame cutting by machine, or welding a tube |
| 01/10/1990 | CN1038607A Metal-cutting technique by use of propane liquefied gas flame |
| 01/03/1990 | CN2050358U Inner expanding form cutting tip |
| 12/19/1989 | US4887797 Slag flushing and water level control system for a metal cutting apparatus |
| 12/06/1989 | EP0344637A1 Method and apparatus for determining the tangent or the line of penetration between a main body and at least one auxiliary body for flame cutting |
| 12/06/1989 | EP0344636A2 Procedure and device for determining the contacting line respectively penetration line between a main body and at least one adjoining body for oxygen cutting |
| 12/05/1989 | CA1263523A1 Xy table |
| 10/26/1989 | DE3812367A1 Apparatus for the working, in particular the thermal cutting, of workpieces in production lines |
| 10/25/1989 | EP0338211A2 Procedure and device for cutting metallic workpieces |
| 10/17/1989 | US4874274 Apparatus for removing dross ridges from the sides and ends of a metal workpiece |
| 10/11/1989 | EP0336807A1 Gas burner with visual observation device |
| 10/05/1989 | WO1989009109A1 Gas blow-torch equipped with a visual observation device |
| 10/04/1989 | EP0211024B1 Steering mechanism for autogenous cutting torch |
| 09/28/1989 | DE3807464A1 Appliance for preparing welded joints |
| 09/27/1989 | EP0334036A2 Liquid jet cutting torch |
| 09/27/1989 | EP0334009A1 Igniting device for a thermal lance |
| 09/14/1989 | DE3448124C2 Method of producing several surface sections |
| 09/13/1989 | EP0331766A1 Limiting of scarfing puddle width by means of granulation |
| 09/05/1989 | CA1259107A1 Method of cutting sheet material |
| 08/23/1989 | CN2043150U Electronic-igniting torch (cutting torch) |
| 08/22/1989 | US4859126 Apparatus and method for removing dross ridges from a metal workpiece |
| 08/16/1989 | CN2042768U Portable petrol welding tool |
| 08/08/1989 | US4854551 Device for controlling operating gap of cutting head and method of using same |
| 07/26/1989 | EP0324935A2 Torch-guiding machine |
| 07/13/1989 | DE3842087A1 Arrangement for moving a work base, in particular for a flame-cutting apparatus |
| 07/12/1989 | EP0216828B1 Device for the treatment of work pieces |
| 06/22/1989 | DE3546656C2 Device for securing the cutting positions for sections such as bulb sections, I-sections and similar bar-shaped workpieces |
| 06/21/1989 | EP0320611A2 Device for cutting UTLI or beaded profiles |
| 06/14/1989 | CN2039243U Annular-tube tipless torch |
| 06/14/1989 | CN2039242U Supersonic cutting tip |
| 06/14/1989 | CN1004474B Machine for removing burrs from slabs |
| 06/07/1989 | EP0159978B1 Cutting tool attachment |
| 05/31/1989 | EP0318153A2 Method and apparatus for remote under water torch cutting |
| 05/31/1989 | CN2038430U Portable gripping block container for welding-cutting |
| 05/31/1989 | CN2038429U Torch running gear for gas cutting |
| 05/24/1989 | CN2038044U Magnetic profile modeling welding-cutting expansion roller |
| 05/24/1989 | CN2038043U Multipurpose igniter |
| 05/17/1989 | CN2037657U Gas-cutting torch |
| 05/16/1989 | US4830681 Oxygen cutting method and nozzle |
| 05/10/1989 | CN2037286U Coning adaption-adjustable ring type cutting mouth |
| 05/02/1989 | US4826541 Two stage combustion |
| 04/26/1989 | EP0312861A1 Procedure and device for automatically changing of cutting nozzles |
| 04/20/1989 | DE3732884A1 Flame-cutting apparatus |
| 04/13/1989 | DE3803444C1 Gas-cutting or heating torch |
| 04/12/1989 | EP0310665A1 Device for thermal removal of barbs from parts |
| 04/11/1989 | US4819917 Apparatus for deburring workpieces by gas detonation |
| 04/06/1989 | DE3732083A1 Device for the thermal cutting of thin workpieces of iron, steel or the like |
| 04/05/1989 | CN2035293U Oxyacetylene cutting device for stainless steel |
| 03/28/1989 | CA1251626A1 Machine for removing burrs from slabs |
| 03/15/1989 | EP0306789A1 Procedure and device for longitudinal partition of billets |
| 03/15/1989 | EP0306788A2 Method and apparatus for the production of slabs and the like from cast strands |
| 03/15/1989 | EP0306688A1 Device for controlling the working gap of a torch, and method for its use |
| 03/15/1989 | EP0211848B1 Installation for the treatment of parts by means of an explosive gas mixture, particularly thermal deburring machine |
| 03/07/1989 | US4809956 Gas torch with articulated and extendable body |
| 03/02/1989 | DE3731977A1 Flame-cutting machine, in particular a flame-cutting machine for cutting continuous castings |
| 02/07/1989 | US4802654 Thermopulse apparatus for deburring parts |
| 02/01/1989 | CN2031733U Magnet-wheel changing gas cutting machine |
| 01/19/1989 | DE3722467A1 Method and arrangement for separating continuously cast slabs lengthwise |
| 01/18/1989 | EP0299210A1 Flame-cutting machine for cutting work pieces |
| 01/10/1989 | US4796868 Apparatus for thermal deburring of parts |
| 01/10/1989 | US4796867 Apparatus for thermal deburring of parts |
| 01/04/1989 | EP0297491A1 Apparatus for flame cutting in continuous strip-casting machines |
| 01/04/1989 | CN2030126U Magnetically positioning gas-cutting multipurpose compasses |
| 12/28/1988 | EP0296368A2 Process for torch-cutting work pieces |
| 12/28/1988 | EP0296299A1 Device for cutting a tube |
| 12/22/1988 | DE3718658A1 Device for supplementary powder feeding, in particular in the flame cutting of workpieces |
| 12/13/1988 | US4790886 Method and apparatus for remote under water torch cutting |
| 11/16/1988 | CN87216089U Self-energizing oxyacetylene flame cutting machine |
| 11/10/1988 | DE3712682A1 Severing apparatus and method of producing and cutting off workpieces |
| 10/19/1988 | EP0287420A1 Process and nozzle for oxy-cutting |
| 10/19/1988 | EP0286696A1 Flame cutting machine with a fettling device |
| 10/12/1988 | EP0285746A1 Device for fixing the cutting positions for profiles, such as bulge profiles, I-profiles and similar bar-shaped work pieces |
| 10/11/1988 | US4776571 Material handling system |
| 09/29/1988 | DE3808132A1 Device for controlling mobile welding and cutting units by a laser guide beam |
| 09/29/1988 | DE3708448A1 Machine tool |
| 09/27/1988 | US4773946 Cutters, feelers, passageways |
| 09/22/1988 | DE3731976C1 Flame-cutting machine, equipped with a water cooling system, for cutting workpieces, in particular continuous castings |
| 08/30/1988 | US4767102 Thermal cutting torch |
| 08/30/1988 | US4767049 Annealing metal substrate to give oxide, then reduction to produce irregular surface |
| 08/23/1988 | US4765846 Process for autogenic flame cutting with oxygen |
| 08/23/1988 | US4765597 Scarfing nozzle |
| 08/17/1988 | EP0214165B1 Chamber for explosive treatment of work pieces, especially for thermal deburring |
| 08/17/1988 | CN88201260U Welding/cutting appliance carried on the back |