| Patents for B23K 7 - Cutting, scarfing, or desurfacing by applying flames (3,809) |
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| 09/25/1991 | EP0214295B1 Apparatus for controlling tapering operation of wire-cutting electric discharge processing machine |
| 09/25/1991 | CN2085276U Magnetic positioning cutting gauge |
| 09/18/1991 | EP0446811A1 Method and apparatus for grinding diamond and diamond product using the same |
| 09/18/1991 | CN2084855U Gas cutter |
| 09/17/1991 | US5048742 Solder-desolder modular station |
| 09/03/1991 | CA1288232C Apparatus for removing dross ridges from the sides and ends of a metalworkpiece |
| 08/28/1991 | EP0264451B1 Thermopulse installation for removal of barbs from parts |
| 08/28/1991 | CN2083528U Multi-direction hole cutting clamp |
| 08/24/1991 | CA2036850A1 Liquid jet cutting process and device |
| 08/22/1991 | DE4005125A1 Thermal torch producing countersunk screw holes in metal sheet - has torch holder connected to upper of two counter rotating discs with intermediary roller bearing |
| 08/14/1991 | DE4024832C1 Metallic object thermal processing device - sends EM energy via optical fibre, to light-electrical energy converters or spectral analyser |
| 08/14/1991 | CN2082653U One-step formation low-loss steel pipe cutting-off device |
| 08/14/1991 | CN2082652U Dual purpose torch for cutting and welding |
| 08/08/1991 | DE4003424A1 Protective plate for use of flame jet burner on rough ground - in which resistance is improved if conical burner has outer flame sprayed layer of tungsten carbide |
| 08/06/1991 | CA2009407A1 Method for optoelectronic control of metal oxygen cutting and device thereof |
| 07/31/1991 | CN2081773U Metal cutter using oxygen and gasoline |
| 07/31/1991 | CN2081772U Cutting blowpipe and welding torch using electronic ignition |
| 07/30/1991 | CA1286977C Oxy-acetylene cutting nozzle and method |
| 07/24/1991 | CN2081321U Hand valve type oxygen-blowing apparatus |
| 07/17/1991 | CN2080882U Portable torch-cutting machine |
| 07/03/1991 | EP0272323B1 Device for thermal removal of barbs from parts |
| 07/03/1991 | EP0264450B1 Method of thermal removal of barbs from metallic parts |
| 07/03/1991 | CN2080008U Steel tube gas cutting machine |
| 06/26/1991 | CN2079552U Hydrogen and oxygen generator |
| 06/11/1991 | US5023424 Shock wave particle removal method and apparatus |
| 06/04/1991 | US5021624 Cutting tools for conventional and MIG electric welders |
| 05/29/1991 | EP0428841A1 Flame-cutting machine water table with underwater-plasmacutting installation, especially for aluminium processing |
| 05/23/1991 | DE3921455C1 Flame cutting machine - has two or more torches with adjustment for height above workpiece and oxygen supply lines |
| 05/22/1991 | CN2077344U Welding blowpipe |
| 05/22/1991 | CN2077343U 便携式焊接装置 Portable welding equipment |
| 05/07/1991 | US5013884 Water table for a thermal-cutting machine, especially for processing aluminum, with an underwater plasma-based cutting system |
| 05/01/1991 | CN2076002U Filled propane cylinder for oxygen-gas welding and cutting |
| 04/24/1991 | EP0423389A1 Flame cutting machine with stub support rollers for continuous casting |
| 04/17/1991 | EP0422610A2 Process and use of an apparatus for shaping the upper surface of articles, in particular stones, through burning or scabbling |
| 04/11/1991 | DE3932853A1 Burner cutting workpieces with curved edges - using wide strip to accelerate heating up process at burner beam contact area |
| 03/27/1991 | CN2073784U Oxygen lance for cutting waste steel of electric furnace |
| 03/26/1991 | US5002263 Compact lance |
| 03/26/1991 | US5002261 Cutting torch for iron and steel metallurgy |
| 03/20/1991 | EP0417409A2 System for the opto-electrical command of a flame cutting machine |
| 03/13/1991 | EP0416341A1 Thermic cutting machine necessitating little operating effort |
| 03/13/1991 | EP0416296A1 Procedure of making workpieces embossed or forged in a die |
| 02/26/1991 | US4995918 Using high pressure supercooled jet from adjustable nozzle improves speed, quality |
| 02/20/1991 | EP0413101A1 Procedure and apparatus for transversely dividing of metallic work pieces |
| 02/13/1991 | CN1049121A Spiral welded pipe fly cutting machine |
| 02/06/1991 | CN2070654U Multipurpose cutting torch |
| 01/23/1991 | EP0408846A1 Method for automatic adjustment of gas and oxygen or air mixtures in heating-or cutting torches |
| 01/23/1991 | EP0408755A1 Method and device for optoelectronic control of oxygen cutting |
| 01/22/1991 | US4986664 System and process for controlled removal of material to produce a desired surface contour |
| 01/22/1991 | US4986515 Burning machine |
| 01/16/1991 | CN2069327U Welding gun for welding titanium alloy material |
| 01/15/1991 | US4985610 Cutting torch |
| 01/03/1991 | DE4018720A1 Cutting rotating concasting leaving rotating mould - by arranging burner so that rotation of casting is opposite to direction of the burner beam |
| 12/26/1990 | CN1047994A Portable multi-purpose welding gun |
| 12/19/1990 | CN2067625U Cutting nozzle with whirl flame |
| 12/19/1990 | CN2067623U Auto-lighting welding and cutting blowpipe |
| 12/13/1990 | DE3918760A1 Preventing damage to cutting or heating torch - using radiation sensor detection flame failure and turning gas off after delay |
| 12/12/1990 | CN2067202U Seat stand for circle-torch cutting |
| 12/05/1990 | CN2066783U Special torch for gas flame welidng, cutting |
| 11/14/1990 | EP0397561A1 Cutting head with oxygen jet |
| 11/14/1990 | CN2065531U Electronic ignited welding and cutting torch |
| 11/12/1990 | CA2016471A1 Oxygen cutting tip |
| 10/24/1990 | EP0393209A1 Automatic oxygen-cutting device for moving steel strands and strip |
| 10/17/1990 | EP0392043A1 Continuous casting machine with an oxygen flame cutting apparatus |
| 10/16/1990 | CA1275239C Exothermic cutting electrode |
| 10/10/1990 | CN2063475U Concrete cutter |
| 10/10/1990 | CN2063457U High efficiency quick cutting-off nozzle |
| 10/03/1990 | CN1009809B Method for continuous casting and cutting into square, round and hexagonal blanks and special-shaped plate blanks crystallizer |
| 09/26/1990 | CN2062682U Oxozone cutter for concrete |
| 09/26/1990 | CN2062667U Electronically automatic igniting cutting torch |
| 09/12/1990 | CN2061883U Multi-function hand gas-cutting guiding device |
| 09/11/1990 | US4955126 Process for fusing steel slabs in longitudinal direction thereof |
| 08/30/1990 | DE3906151A1 Method of reducing the gas consumption during flame cutting |
| 08/22/1990 | CN2060710U Portable dual-purpose gun for spraying and welding |
| 08/14/1990 | US4948937 Apparatus and method for heat cleaning semiconductor material |
| 08/14/1990 | US4948101 Apparatus for making divergent cuts chamfered relative to a cutting surface by means of torch cutting |
| 08/07/1990 | US4946575 Metallic anodes manufactured from molten copper |
| 08/02/1990 | DE4001625A1 Synchronisation device for travelling carriages - incorporates two cables running round portals |
| 07/26/1990 | DE4000754A1 Hard deposit removal for vehicle support - is carried out by laser directed at interface defined by sensing unit |
| 07/25/1990 | CN2059612U Dry backfire arrestor for tail end of spary welding torch |
| 07/18/1990 | EP0378461A1 Cutting nozzle for iron and steel processing |
| 07/18/1990 | CN1008799B Apparatus and method for removing dross ridges from a metal workpiece |
| 07/04/1990 | CN1043459A Liquid jet cutting burner |
| 07/03/1990 | US4938455 Liquid-jet cutting torch |
| 06/28/1990 | DE3843771A1 Method of reducing the running time of flame-cutting machines |
| 06/27/1990 | EP0374741A2 Processing of metal articles |
| 06/26/1990 | CA1270731A1 Method of thermal deburring of metal parts |
| 06/21/1990 | CA2005936A1 Processing of metal articles |
| 06/13/1990 | EP0372099A1 Compact lance with a safety device against the rotation of tubes |
| 06/13/1990 | DE3841484A1 Method and device for the improved lifting of thermally cut components from a blank plate |
| 06/05/1990 | US4930756 For supporting a workpiece beneath a cutting machine |
| 05/30/1990 | CN1008152B Back-fire preventive unit in a gas cutting torch |
| 05/29/1990 | US4928932 Band casting-setting-burn-cutting machine in a line-like layout |
| 05/23/1990 | EP0369883A1 Device for cleaning both edges of a metallic sheet prior to welding |
| 05/17/1990 | DE3838494A1 Arrangement for longitudinally dividing bent slabs |
| 05/17/1990 | DE3838212A1 Arrangement for the longitudinal dividing of slabs |
| 05/17/1990 | DE3826530A1 Machine tool |
| 05/09/1990 | CN2056882U Welding blowpipe with explosion-proof self-sealing connector |
| 05/08/1990 | US4923527 Apparatus and method for slag-free cutting of billets and the like |
| 05/03/1990 | WO1990004482A1 Method and device for optoelectronic control of oxygen cutting |
| 04/25/1990 | CN2056371U Ultrasonic flame cutter |