| Patents for B23K 9 - Arc welding or cutting (32,679) |
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| 02/10/1988 | CN86201529U Elastic arc-extinguishing plate |
| 02/10/1988 | CN86200722U Energy-saving ac arc welder using l-c resonance circuit to raise open-circuit voltage |
| 02/09/1988 | US4724302 Bead process control with profiler |
| 02/09/1988 | US4724301 Apparatus utilizing light stripe image for detecting portion to be welded prior to welding thereof |
| 02/09/1988 | US4724293 Method of making a pressure vessel |
| 02/04/1988 | DE3626300A1 Method for the application of a deposition weld to castings and an apparatus |
| 02/04/1988 | DE3625920A1 Tube plate (sheet) for heat exchangers, and method for producing it |
| 02/04/1988 | DE3625394A1 Device and process for metal pulse arc welding |
| 02/03/1988 | EP0183812B1 Apparatus for cleaning the gas nozzle of a welding torch |
| 02/03/1988 | CN87202921U Automatic controlling attachment of welder vapour remover |
| 02/03/1988 | CN87200278U Remote current controlling attachment of welder |
| 02/02/1988 | US4723064 Purge gas system for welding pipes |
| 02/02/1988 | US4723060 for use in welding |
| 02/02/1988 | CA1232334A1 Apparatus for use in welding |
| 02/02/1988 | CA1232333A1 Measuring proximity of metal to an arc welding torch |
| 01/28/1988 | WO1988000508A1 Method of detecting position data in arc welding |
| 01/28/1988 | DE3623623A1 Process for the reworking of tools |
| 01/27/1988 | EP0254159A1 Device for packaging radioactive materials |
| 01/27/1988 | CN87203420U Screw fasten type electrical welder handle of combined material |
| 01/26/1988 | US4721947 Welding monitor |
| 01/26/1988 | US4721906 For determining the root mean square value or a pulsatile signal |
| 01/26/1988 | US4721844 Electric arc welding process for filling a weld groove to a predetermined extent |
| 01/26/1988 | US4721843 Method and apparatus for controlling an arc welding energy source during an arc welding operation |
| 01/26/1988 | US4721837 Cored tubular electrode and method for the electric-arc cutting of metals |
| 01/26/1988 | US4721536 Method for making steel tubes or pipes of increased acidic gas resistance |
| 01/26/1988 | CA1232029A1 Remotely controllable arc welder and combined auxiliary power unit |
| 01/20/1988 | EP0253320A1 Stud feeder for stud welding tools |
| 01/19/1988 | CA1231562A1 Bolt holder for a bolt-welding machine |
| 01/13/1988 | CN87201729U Tricoordinates hydraulic welding machine tool |
| 01/13/1988 | CN86104601A Technology for copper alloy plasma-avc welding on the surface of cast iron |
| 01/07/1988 | EP0252047A2 Procedure for single-fillet arc welding |
| 01/07/1988 | EP0251846A1 Rotative electrode machine for arc welding under inert gas, and its use |
| 01/07/1988 | EP0251423A2 Improvements relating to welding |
| 01/07/1988 | EP0250511A1 High-current electrode |
| 01/07/1988 | EP0124612B1 Welding method using an automatic welding machine |
| 01/06/1988 | CN86104447A Electric welding machine electricity saving security switch |
| 01/05/1988 | US4717814 Slotted autoregulating heater |
| 01/05/1988 | US4717807 Method and device for controlling a short circuiting type welding system |
| 01/05/1988 | CA1231143A1 Welding electrode holder |
| 12/30/1987 | CN87203419U Wholly clamping electric weld handle made from new type complex material |
| 12/29/1987 | US4716274 Distributed station welding system |
| 12/29/1987 | US4716273 Electric-arc trainer for welders |
| 12/29/1987 | US4716269 Plasma arc torch having supplemental electrode cooling mechanisms |
| 12/29/1987 | US4715524 Assembly of parts to be formed into a T-joint weld |
| 12/29/1987 | CA1230936A1 Image sensing and welding arrangement for manipulator welding apparatus |
| 12/29/1987 | CA1230935A2 Constant potential/constant current automatic control system for air-carbon arc metal removal |
| 12/23/1987 | EP0249774A1 Guiding machine |
| 12/23/1987 | DE3620668A1 Device for remote controlling the forward feed of the wire in welding devices with a progressively melting electrode |
| 12/23/1987 | CN86210538U Dc arc weld electric source |
| 12/22/1987 | US4714818 Magnetic control device for arc welding |
| 12/22/1987 | CA1230650A1 Stud welding apparatus with two wire control |
| 12/17/1987 | DE3619761A1 Method and device for burning off rod electrodes by machine |
| 12/16/1987 | EP0249079A1 Device for centering and clamping pipe parts to be welded together |
| 12/16/1987 | CN86205756U High efficient manual arc welding machine |
| 12/16/1987 | CN86204304U Multi-head dc and ac welder |
| 12/15/1987 | US4713521 Electronic potentiometer simulator |
| 12/15/1987 | US4712722 Concurrent ultrasonic weld evaluation system |
| 12/15/1987 | US4712720 Device for mutually centering and clamping two pipe bodies to be welded to one another |
| 12/15/1987 | CA1230388A1 Consumable spacer chill ring |
| 12/15/1987 | CA1230298A1 Pipe termination |
| 12/15/1987 | CA1230247A1 Internal pipe welding apparatus |
| 12/12/1987 | CN86208666U Multipurpose electric-arc welding machine |
| 12/12/1987 | CN86202785U Spotlight for electric-arc welding |
| 12/09/1987 | EP0248654A2 Pulsed arc welding |
| 12/09/1987 | CN86206805U Multi-function light ac welder |
| 12/09/1987 | CN86204995U Refractory guard ring for welding steel stud |
| 12/09/1987 | CN86202599U Current adjustable electric welder controlled by magnetic-current ratio |
| 12/08/1987 | US4711986 Method and apparatus for measuring weld penetration in an arc welding process |
| 12/08/1987 | CA1230166A1 Constant potential/constant current automatic control system for air-carbon arc metal removal systems |
| 12/03/1987 | DE3617979A1 Method and device for reworking props and the like |
| 12/02/1987 | EP0247628A2 Method of control and apparatus for hot-wire welding |
| 12/02/1987 | EP0247433A2 Device for measuring the welding advancement speed |
| 12/02/1987 | EP0247072A1 Treatment of internal faces of pipe bends |
| 12/02/1987 | EP0247064A1 Apparatus for conducting current to an electrode in arc welding, arc cutting or the like operations |
| 12/01/1987 | US4710608 Fixture for welding long workpieces |
| 12/01/1987 | US4710103 Method for fastening blades on the periphery of the rotor body of a steam turbine and the turbo-machine produced by the method |
| 11/26/1987 | DE3717710A1 Automated arc fusion welding process by root-side fusion control by means of arc tracer diagnostics |
| 11/25/1987 | EP0246725A2 Plasma-arc torch with sliding gas valve interlock |
| 11/25/1987 | CN87101022A Power supply for high speed non-contactor anti-electric shock alternating arc welder |
| 11/24/1987 | US4709133 Welding apparatus for simultaneously applying parallel welds to workpieces |
| 11/24/1987 | US4708279 Internal alignment clamp |
| 11/19/1987 | EP0245625A1 Process for manufacturing a body by way of shaped build-up welding |
| 11/19/1987 | DE3616219A1 Handle (welding-shield handle, interchangeable with electrode holder) |
| 11/18/1987 | CN87104155A Diaphragm pressure sensor for flowing medium with high-temp. and high-pressure |
| 11/18/1987 | CN86206296U Improved ac arc welder |
| 11/17/1987 | US4707581 Apparatus for the electroslag surfacing of rolling mill rolls |
| 11/11/1987 | EP0244436A1 Root insert and method for welding |
| 11/11/1987 | CN87102481A Tube-fixing method between tube sockets |
| 11/11/1987 | CN86210048U Current adjusting rod for telecontrol electric welder |
| 11/10/1987 | US4706000 Tool posture control system |
| 11/10/1987 | US4705934 Arc welder |
| 11/10/1987 | US4705424 Stud system for securing abrasion resistant members |
| 11/07/1987 | CN86206543U Submarine locally dry welding apparatus |
| 11/05/1987 | WO1987006514A1 Welding arc initiator |
| 11/05/1987 | DE3615011A1 Apparatus for electric arc welding with magnetically moved arc |
| 11/04/1987 | EP0243623A2 Device for attaching tubes between tube plates |
| 11/03/1987 | US4704513 Groove tracing control method for high-speed rotating arc fillet welding |
| 11/03/1987 | CA1228896A1 Welding system for tig-welding |
| 10/31/1987 | CN86209927U Energy saving apparatus for rotary dc arc weiding machines |
| 10/29/1987 | DE3614271A1 Portable bolt welding apparatus |