| Patents for B23K 9 - Arc welding or cutting (32,679) |
|---|
| 05/23/1990 | EP0369349A1 Cutting torch |
| 05/23/1990 | EP0369114A1 Process for manufacturing alloyed tungsten rods |
| 05/23/1990 | CN1042324A Automatic carbon arc type gas gouging machine |
| 05/17/1990 | WO1990005397A1 Method and apparatus for joining electrical wires |
| 05/17/1990 | DE3838315A1 Process for treating a cylinder block |
| 05/16/1990 | EP0368642A2 Method of forming a joint between a Ti-Al alloy member and a steel structural member |
| 05/16/1990 | EP0368487A1 Welded corrosion-resistant ferritic stainless steel tubing and a cathodically protected heat exchanger containing the same |
| 05/16/1990 | EP0367861A1 Apparatus for automatically fillet-welding object to be welded comprising rectangular bottom plate and four side plates tack-welded substantially vertically to said bottom plate |
| 05/16/1990 | EP0367850A1 Apparatus for automatically fillet-welding object to be welded comprising rectangular bottom plate and four side plates tack-welded substantially vertically to said bottom plate |
| 05/16/1990 | EP0190436B1 Planetary wire feeding device |
| 05/15/1990 | US4926024 Welding gun cable saddle |
| 05/15/1990 | US4926023 High-speed rotative arc welding device |
| 05/15/1990 | US4924967 Exhaust manifold |
| 05/15/1990 | CA1268968A1 Automatic tab plate welding apparatus |
| 05/10/1990 | DE3936993A1 Under powder arc welding using consumable electrode - with pulsed high and low energy supply corresp. to feeding or non-feeding phases in electrode feeding cycle |
| 05/10/1990 | DE3936532A1 Welding wire feeding device - with flexible wire feed tube connected to coupling with induction change sensing coil to Adjust feed speed when tube moves longitudinally |
| 05/09/1990 | EP0367414A1 Stud welding apparatus |
| 05/09/1990 | CN2056883U Three-phase ac arc welder |
| 05/09/1990 | CN1041899A Apparatus for automatically welding cylindrical vessel |
| 05/09/1990 | CN1041898A Method for induction built-up welding |
| 05/08/1990 | US4924066 Cooling device |
| 05/08/1990 | US4924065 Welding electrode holding device with quick ejection of the worn out electrode |
| 05/08/1990 | US4924060 Cap for an arc torch and torch provided with said cap |
| 05/08/1990 | US4924056 Dent puller and method of use |
| 05/08/1990 | US4924053 Electrode carrying wire for GTAW welding |
| 05/08/1990 | US4923673 Compaction and sintering with lanthanum oxide; low energy; workability |
| 05/03/1990 | WO1990004484A1 Method and device for checking working capacity of plasmatron electrode |
| 05/03/1990 | WO1990004483A1 Method and apparatus for making an underwater weld seam |
| 05/03/1990 | DE3936205A1 Arc welding lance - with cooling sleeve acting as heat exchanger and air blasting unit to remove smoke from welding area |
| 05/03/1990 | DE3842643C1 Method and arrangement for transporting loads |
| 05/03/1990 | DE3837044A1 Method of fabricating longitudinally seam-welded pipes |
| 05/03/1990 | DE3836633A1 Einrichtung zur schweissbogenzuendung und -stabilisierung Means for schweissbogenzuendung and stabilization |
| 05/02/1990 | EP0366218A1 Automatic build up welding apparatus |
| 05/01/1990 | US4922174 Seam tracking between mating parts |
| 05/01/1990 | US4922073 Thick tube welder |
| 05/01/1990 | CA1268433A1 Composite metal-plastic containers assembled by welding, and their manufacture |
| 04/25/1990 | CN2056373U Hydrolysis oxygen gas flame cutting and electric welding device |
| 04/25/1990 | CN2056372U Non-intermission electric welding machine |
| 04/25/1990 | CN1041556A Rare earth tungsten electrode material and its production method |
| 04/24/1990 | US4920249 Weld bead wetting angle detection and control |
| 04/24/1990 | US4920248 ARC sensing welding apparatus controlled by program |
| 04/24/1990 | CA1268219A1 Ac power supply with improved cooling means |
| 04/19/1990 | DE3834827A1 Inert-gas welding process, apparatus for carrying out the process and pipeline fabricated according to the process |
| 04/18/1990 | CN2056109U Convenient switch and current regulcttor for electrode holders |
| 04/18/1990 | CN2056108U Current regulator for welding controlled by electrode holders |
| 04/18/1990 | CN1041305A Casting technology of copperwelding rod |
| 04/18/1990 | CN1007595B Welding machine |
| 04/17/1990 | US4918517 System and process for video monitoring a welding operation |
| 04/17/1990 | US4918287 Apparatus and method for producing multi-level heat input for weld formation using a single current level power supply |
| 04/17/1990 | US4918286 Method and apparatus for cleaning and lubricating a metal inert gas welding gun |
| 04/17/1990 | US4918285 System for supplying power |
| 04/17/1990 | US4918283 Method of and apparatus for conducting plasma welding |
| 04/17/1990 | US4918280 Clamping sleeve for burner electrodes, especially for tig burners |
| 04/17/1990 | US4918278 Joinable arc gouging electrodes with indicator for indicating, during use, when arc is a predetermined distance from end of electrode; and method of using same |
| 04/17/1990 | US4917619 Tool changer for welding robot |
| 04/17/1990 | CA1267939A1 Welding apparatus and method for depositing wear surfacing material and a substrate having a weld bead thereon |
| 04/11/1990 | EP0362421A1 Apparatus for automatically welding cylindrical vessel |
| 04/11/1990 | EP0277140B1 Process and device for seeking and following a fillet weld during inert gas arc welding |
| 04/11/1990 | CA2000488A1 Carbon dioxide welding gun |
| 04/10/1990 | US4916599 Switching power supply |
| 04/10/1990 | US4916286 Method and an apparatus for controlling work performed by an automatic work processing machine |
| 04/10/1990 | US4916281 Gas back-purging during welding of pipe |
| 04/10/1990 | US4916270 Mig welder cutting head attachment |
| 04/05/1990 | WO1990003243A1 Apparatus and process for cooling a plasma arc electrode |
| 04/04/1990 | EP0361966A2 Stud welding apparatus and process |
| 04/04/1990 | EP0361172A1 Wear-resistant roller coating for roller crushers, and method for building up said coating |
| 04/04/1990 | EP0360796A1 Current nozzle for mig- and mag-welding burner. |
| 04/04/1990 | EP0277233B1 Device for plasma-arc cutting of biological tissues |
| 04/04/1990 | CN2055427U Adiabatic electrode holders |
| 04/04/1990 | CN2055426U High power factor energy saver for ac arc welding machihe |
| 04/04/1990 | CN2055425U High-efficient energy-saving silicon controlled invertor electric welder |
| 04/04/1990 | CN2055424U Multifunction controller for electric welder |
| 04/04/1990 | CN2055423U Thyristor tap transformer type electric welder |
| 04/04/1990 | CN2055422U Three phase balanced and energy saving ac welding machine |
| 04/04/1990 | CN2055421U Electrical arc welding and butt welding double use hand machine |
| 04/04/1990 | CN1040944A Plasma cutting-torch |
| 04/04/1990 | CN1040943A Apparatus for detecting a shape of a groove |
| 04/04/1990 | CN1040942A Close-cycle controlled thin-plate welder |
| 04/03/1990 | US4914271 Arc working torch and machine, and cartridge for said torch |
| 04/03/1990 | CA1267451A1 Swivel-head welding torch for gas shielded nonconsumable-electrode arc welding |
| 03/29/1990 | DE3835707C1 Inert-gas feed |
| 03/29/1990 | DE3832156A1 Shaped jaw and device for welding railway rails and superstructure sections using rod or wire electrodes |
| 03/28/1990 | CN2055078U No-load current-limiter for electric welding machine |
| 03/28/1990 | CN1040754A Tapped transformer type arc welding machine |
| 03/27/1990 | US4912299 Gas metal arc welding of aluminum-based workpieces |
| 03/27/1990 | US4912296 Rotatable plasma torch |
| 03/27/1990 | US4912293 method and apparatus for forming a partial protective-gas atmosphere |
| 03/27/1990 | US4911209 Method and apparatus for forming wire mesh cages |
| 03/21/1990 | EP0358794A1 Apparatus for detecting a shape of a groove |
| 03/21/1990 | EP0358661A1 Method and system for determining surface profile information. |
| 03/21/1990 | CN1040534A Copper-saving and heat-insulating electrode holders |
| 03/21/1990 | CN1040533A Double-balance method for welding cast irons |
| 03/21/1990 | CN1007219B Method for controlling bead |
| 03/20/1990 | US4910635 Apparatus for protecting an integrated circuit from reverse voltages caused by a relay |
| 03/20/1990 | US4910379 Modified mig welding nozzle for stud welder |
| 03/20/1990 | US4909807 Battery; welding cylindrical enclosure and backing ring |
| 03/20/1990 | CA1266892A1 Method of igniting arcs |
| 03/15/1990 | DE3830148A1 Protective gas welding method for connecting wires, which are varnish-insulated in a heat-resistant manner, to connecting elements |
| 03/14/1990 | EP0357884A1 Electric welding apparatus |
| 03/14/1990 | EP0357757A1 Vertical strip clad welding method and apparatus |