| Patents for B23K 9 - Arc welding or cutting (32,679) |
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| 08/14/1990 | US4948935 Apparatus for use with a carbon arc torch to retain short electrodes |
| 08/14/1990 | US4948933 Apparatus for cutting precision notches in work surfaces |
| 08/14/1990 | CA1272765A1 Method/apparatus for applying weld bead to thin section |
| 08/09/1990 | WO1990008617A1 Method for press-welding of parts with heating by electric arc moving in a magnetic field |
| 08/08/1990 | EP0381115A1 Method and apparatus for splicing metal webs |
| 08/08/1990 | CN2060099U Silicon control one-phase direct current three-phase alternating current dual-purpose arc welding machine |
| 08/08/1990 | CN1044426A Transistorized arch welding inverter |
| 08/07/1990 | US4947024 Welding apparatus coated with spatter-resistant and electrically conductive film |
| 08/07/1990 | US4947021 Method and apparatus for TIG welding |
| 08/07/1990 | US4946304 Glass coated article |
| 08/07/1990 | CA1272512A1 Process for the production of a member by shaping build-up welding |
| 08/02/1990 | DE3938222A1 Ceramic ring for stud welding - with specified concave shape of contact end with gas vents |
| 08/01/1990 | EP0379596A1 Installation for pressure welding of parts heated by an arc moving in a magnetic field |
| 07/31/1990 | US4945209 Welding gun swivel |
| 07/31/1990 | US4945208 Carbon dioxide welding gun |
| 07/31/1990 | US4945201 Rack mountable weld controller |
| 07/26/1990 | DE3901022A1 Clamping, centring and internal-flushing device for pipe pieces |
| 07/25/1990 | CN1008893B Rotary ring used for mounting welder head other and automatic welding set of mounting welder head other on rotary ring |
| 07/24/1990 | US4943904 D.C. power unit assembly including unitized single-phase D.C. power units |
| 07/24/1990 | US4943702 Apparatus and methods for controlling a welding process |
| 07/24/1990 | US4943701 Apparatus for and method of detecting arc length, apparatus for and method of controlling welding torch height, and automatic welder and automatic welding method |
| 07/24/1990 | US4943699 System for supplying power |
| 07/24/1990 | US4943492 Welding aluminium alloys |
| 07/24/1990 | US4943001 Tube-type vessel having crevice-free joints and method for manufacturing the same |
| 07/24/1990 | US4942922 Welded corrosion-resistant ferritic stainless steel tubing having high resistance to hydrogen embrittlement and a cathodically protected heat exchanger containing the same |
| 07/19/1990 | DE3931791A1 Stud arc welding gun - combining with its cylinder a guide function and an advance function |
| 07/19/1990 | DE3901202A1 Welding and cutting device |
| 07/19/1990 | DE3901120A1 Verfahren und vorrichtung zur steuerung von transformator-schweissstromquellen Method and apparatus for control of transformers welding power sources |
| 07/18/1990 | EP0377755A1 Visual control robot system |
| 07/18/1990 | CN2059386U Automatic telecontrol welder for welding internal and external cylindric bodies |
| 07/18/1990 | CN2059385U Electricity saver for ac arc welder |
| 07/18/1990 | CN1043898A Argon arc welding for red copper pipe and steel pipe plate |
| 07/18/1990 | CN1008800B Method of controlling rootage melding path |
| 07/17/1990 | US4942283 Stud welding apparatus |
| 07/17/1990 | US4942281 Multi-torch interface assembly for inert gas welding |
| 07/17/1990 | US4942280 Device for welding the end of a tubular piece fastened inside a bore opening onto a face of a plate, such as a tube plate of a steam generator |
| 07/17/1990 | CA1271814A1 Control circuit for the welding of components |
| 07/14/1990 | WO1990008006A1 Welding method and apparatus |
| 07/14/1990 | CA2045140A1 Welding method and apparatus |
| 07/11/1990 | WO1990008007A1 Arc sensor having object transmission window with anti-fouling structure |
| 07/11/1990 | CN2059116U Power saving device for electric welder |
| 07/11/1990 | CN1043770A Method of modifying turbine rotor discs |
| 07/11/1990 | CA2024104A1 Arc sensor provided with a transparent objective window having a contamination preventing construction |
| 07/10/1990 | US4940390 Machining steeples from weld build-up |
| 07/10/1990 | CA1271348A1 Method of cladding a steel cylindrical core |
| 07/10/1990 | CA1271315A1 Process of replacing a sleeve mounted within a pipe, and devices for carrying out that process |
| 07/05/1990 | DE3843173A1 Verschleissfeste oberflaechenpanzerung fuer die walzen von walzenmaschinen, insbesondere hochdruck-walzenpressen Wear-oberflaechenpanzerung for the rolling of rolling machines, especially high-pressure roller press |
| 07/04/1990 | EP0376161A1 Method and auxiliary device for making butt welds at gas pipes |
| 07/04/1990 | EP0376015A2 Welding torch with a shielding gas for arc welding with a consumable electrode |
| 07/04/1990 | CN1043458A Method for improving arcing initiation success rate |
| 07/04/1990 | CN1008611B High-speed rotary arc welding equipment |
| 07/04/1990 | CN1008610B Method for arc welding |
| 07/03/1990 | US4939339 Apparatus for quick disconnect of an arc welder torch |
| 07/03/1990 | US4939338 Welded article and method of manufacture |
| 07/03/1990 | US4939337 Apparatus for the storage and handling of at least one elongate flexible element, such as a feeder and signal transmission cable, for an automatic orbital welding machine |
| 07/03/1990 | CA1271227A1 Remotely controlled semi-automatic welding process of two symetrical round workpieces |
| 06/28/1990 | WO1990006830A1 Method and consumable electrode for electric arc welding of metal parts |
| 06/28/1990 | WO1990006811A1 Abrasion-resistant steel cladding for the roller surfaces of roller machines, in particular high-pressure roller presses |
| 06/27/1990 | EP0375114A1 Building workpieces by deposit welding |
| 06/26/1990 | US4937428 Core of phosphor bronze |
| 06/26/1990 | US4937427 Apparatus and method for automatically welding a T-junction connector to a main pipe |
| 06/26/1990 | US4937426 Automatic groove tracing method for an arc welding robot |
| 06/26/1990 | US4936500 Bolt-type boiler wall tube tool |
| 06/21/1990 | DE3911851C1 Metallurgical connection between heating conductor and cable - using intermediate piece of large cross-section and low resistance |
| 06/20/1990 | EP0373295A1 Process for the manufacture of a warp beam, and warp beam made by this process |
| 06/20/1990 | EP0233904B1 Apparatus for underwater working |
| 06/20/1990 | CN2058359U Dual-purpose machine for electric generating and welding |
| 06/19/1990 | US4935598 Automatic arc welding with filler wire |
| 06/19/1990 | US4935597 Process and a device for finding and following a hollow weld in shielded arc welding |
| 06/19/1990 | US4935596 Shutoff detector for unstable plasma or combustion flame |
| 06/19/1990 | US4934641 Curved surface suction mounting apparatus |
| 06/19/1990 | US4934627 De-reeler |
| 06/19/1990 | US4934576 Planetary wire-feeding mechanism |
| 06/19/1990 | US4934231 Rotary die-cutting apparatus |
| 06/14/1990 | WO1990006205A1 Method and tool for the welding of pipes |
| 06/13/1990 | EP0372533A2 Production process for metal work pieces |
| 06/13/1990 | EP0372529A2 Protective gas nozzle for a gas-shielded welding torch with an insulating sheath at the current-contacting tube |
| 06/13/1990 | EP0372275A2 Method of modifying turbine rotor discs |
| 06/13/1990 | EP0372054A1 Focussed ventilation procedure for a work spot and apparatus used in the procedure. |
| 06/13/1990 | EP0222768B1 Method and apparatus for accomplishing an underwater weld joint |
| 06/13/1990 | DE3841325A1 Inert-gas nozzle, designed as a flat nozzle, for inert-gas welding torches |
| 06/13/1990 | CN2058121U Forming welder with gas-shield |
| 06/13/1990 | CN2058120U Electricity-proof kemote-control a.c.welder |
| 06/13/1990 | CN1042856A Energy-saving and all-powerful electric welding machine |
| 06/12/1990 | US4933541 Method and apparatus for active vision image enhancement with wavelength matching |
| 06/08/1990 | CA2004851A1 Method of modifying turbine rotor discs |
| 06/07/1990 | CA2004737A1 Method for producing workpieces of metal |
| 06/06/1990 | EP0371128A1 Cathode structure of a plasma torch |
| 06/06/1990 | EP0190359B1 Nozzle for gas-shielded arc welding |
| 06/06/1990 | CN1008246B Method for cleaing dirt estp. rust from metal surface |
| 06/05/1990 | US4931617 Electrically conductive coating for cover of industrial robot |
| 06/05/1990 | US4931612 Device for forming a closed chamber inside two metal pipes to be connected together by arc welding under a protective gas |
| 06/05/1990 | US4931611 Method and apparatus for joining electrical wires |
| 06/05/1990 | CA1269872A1 Welding apparatus assembled together with grinding device |
| 05/30/1990 | EP0370183A2 Procedure for welding an underground pipeline conduit to a following pipe |
| 05/30/1990 | CN1042588A Water turbine |
| 05/29/1990 | US4929812 Method for electrical arc spot welding with consumable electrode |
| 05/29/1990 | US4928372 Process for manufacturing stamp formed mufflers |
| 05/29/1990 | CA1269722A1 Adapter for control of gas flow to a gas-constricted arc nozzle or the like |
| 05/23/1990 | EP0369367A1 Device and process for short circuit arc welding |