| Patents for B23K 13 - Welding by high-frequency current heating (1,807) |
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| 08/26/1986 | US4608471 Impeder with aggregate ferromagnetic core |
| 07/17/1986 | WO1986004005A1 A method for heating metal elements to be joined |
| 06/24/1986 | US4596913 Impeder for electric resistance tube welding |
| 06/19/1986 | WO1986003443A1 Apparatus for automatically controlling heat input by a high-frequency power supply for welding |
| 06/10/1986 | US4593550 Strip preparation rollers |
| 05/16/1986 | EP0163654A4 Apparatus and method for fusing battery terminals. |
| 04/22/1986 | US4584453 Method and an apparatus for inductively welding a front fork of bicycle |
| 02/18/1986 | US4571472 Device for induction welding |
| 01/21/1986 | CA1199684A1 Production of electrical resistance welded steel tubes with welds having improved toughness |
| 01/15/1986 | EP0168314A1 Process and apparatus for induction-welding thick metal work |
| 12/24/1985 | CA1198267A1 Method of manufacturing bimetallic tubes |
| 12/11/1985 | EP0163654A1 Apparatus and method for fusing battery terminals. |
| 11/10/1985 | CN85103615A The technology and equipment of vacuum induction powder surfacing |
| 10/30/1985 | EP0159693A2 Process for the multiple use of a copper wire as an electrode wire in electric-resistance longitudinal seam welding |
| 10/23/1985 | EP0158979A1 Continuous weld tube mill |
| 09/17/1985 | US4542267 Automated closure system for nuclear reactor fuel assemblies |
| 08/13/1985 | US4535215 Method and device for controlling the welding process in the manufacturing of pipes with longitudinal seams |
| 08/06/1985 | US4533806 Method of manufacturing bimetallic tubes |
| 07/31/1985 | EP0150165A2 A device for induction welding |
| 07/30/1985 | EP0138887A4 Method for reshaping a gas turbine engine combustor part. |
| 07/23/1985 | US4531035 For welding a seam on metal tubing |
| 06/11/1985 | US4523072 Production of electrical resistance welded steel tubes with welds having improved toughness |
| 06/11/1985 | US4523068 Apparatus and method for fusing battery terminals |
| 05/02/1985 | EP0138887A1 Method for reshaping a gas turbine engine combustor part. |
| 04/02/1985 | US4508949 Method and apparatus for welding tapered metal poles |
| 03/28/1985 | WO1985001413A1 Apparatus and method for fusing battery terminals |
| 03/27/1985 | EP0135133A2 Method of and apparatus for continuously hot-rolling steel pieces |
| 02/26/1985 | US4501943 Apparatus and method for fusing battery terminals with improved induction heating power control |
| 02/12/1985 | US4498617 Method for reshaping a gas turbine engine combustor part |
| 12/05/1984 | EP0126795A1 Method for manufacturing welded pipes |
| 10/23/1984 | US4479043 Controlling the zone of longitudinally seam-welding split tubes |
| 10/23/1984 | US4478669 Adhesive bonded gun assembly for applying fastener |
| 10/11/1984 | WO1984003851A1 Method for reshaping a gas turbine engine combustor part |
| 10/09/1984 | US4476370 Method and apparatus for shaping beads of welded steel section |
| 09/11/1984 | US4471204 Method for joining of articles by energy beam and apparatus for controlling said method |
| 09/11/1984 | CA1174294A1 Impeder for electric resistance tube welding |
| 06/26/1984 | US4456803 Method and apparatus for making an electric resistance welded tube |
| 05/23/1984 | EP0108871A1 Method and device for monitoring and/or controlling the welding current in the high frequency resistance pressure welding of pipes with a straight bead |
| 05/22/1984 | US4449281 Method of producing multiple-wall, composite tubular structures |
| 05/09/1984 | EP0045764B1 Method for interconnecting pipes |
| 04/25/1984 | EP0106061A1 Method for controlling the welding process in the production of pipes with a longitudinal seam |
| 04/17/1984 | US4443677 Induction welding impeder apparatus with fluid cooling |
| 03/06/1984 | CA1163330A1 Method of high-frequency welding and apparatus for effecting the same |
| 02/28/1984 | CA1162765A1 Pipe seam welding apparatus |
| 02/21/1984 | US4433227 Method of inductively heating workpieces to a uniform temperature |
| 02/07/1984 | US4430543 Inductor for induction welding and a method for the manufacture of the same |
| 11/15/1983 | CA1157106A1 Progressive welding and forging of overlapped seams in tubular bodies |
| 08/30/1983 | CA1153073A1 Method and apparatus of making an electric welded tube with controlled current distribution |
| 07/12/1983 | CA1149884A1 Apparatus for continuous manufacture of butt-welded pipe |
| 07/06/1983 | EP0083091A2 Process and apparatus for coating articles with molten metal |
| 06/07/1983 | US4387288 Method for welding automatic brake shoes |
| 03/15/1983 | CA1143017A1 Inductor for induction welding and a method for the manufacture of the same |
| 11/02/1982 | US4357512 Apparatus for continuous manufacture of butt-welded pipe |
| 10/19/1982 | US4355222 Induction heater and apparatus for use with stud mounted hot melt fasteners |
| 10/12/1982 | US4354085 Pipe welder with improved seam spreader |
| 10/12/1982 | CA1133589A1 High frequency current welding of metal strip to a metal part |
| 10/05/1982 | CA1133072A1 High frequency induction welding with return current paths on surfaces to be heated |
| 07/13/1982 | US4339654 Methods for the manufacture of heat exchanger panels |
| 06/16/1982 | EP0053769A1 Impeder for electric resistance tube welding |
| 06/15/1982 | CA1125862A1 Radio frequency beam welding of battery terminals |
| 06/01/1982 | US4332998 Apparatus for welding automotive brake shoes |
| 06/01/1982 | US4332997 Apparatus for delivery of valves and melting rings to an inductor heater for hard facing |
| 05/25/1982 | US4331286 Method for pressure bonding metal members by utilizing eutectic reaction |
| 05/25/1982 | CA1124335A1 Electrical contact apparatus for high frequency welding |
| 04/27/1982 | CA1122661A1 Embedment of hard particles in a metal surface |
| 03/16/1982 | CA1119898A1 Method of producing areas of alloy metal on a metal part using electric currents |
| 02/17/1982 | EP0045764A1 Method for interconnecting pipes. |
| 02/02/1982 | US4314125 Electric seam welding device in the production equipment of hot-dip metal-coated steel tubes |
| 12/01/1981 | US4303883 Apparatus for detecting the center of a welded seam in accordance with fundamental harmonic component suppression |
| 12/01/1981 | CA1113549A1 Device for induction welding with accessible cooling medium passage |
| 11/10/1981 | US4300031 Method for induction butt-welding metal parts, in particular parts of irregular cross-section |
| 10/20/1981 | US4296293 Progressive welding and forging of overlapped seams in tubular bodies |
| 09/03/1981 | WO1981002405A1 Method for interconnecting pipes |
| 09/02/1981 | EP0034902A2 Welding apparatus and method |
| 05/19/1981 | US4268736 Induction welding apparatus for manufacture of tubing |
| 12/23/1980 | US4241284 Electrical contact apparatus for high frequency welding |
| 12/09/1980 | US4238658 Method of assembly of nonmagnetic current-conducting components |
| 11/18/1980 | US4234776 Method of producing areas of alloy metal on a metal part using electric currents |
| 11/11/1980 | US4233484 High frequency current welding of metal strip to a metal part |
| 10/28/1980 | US4230923 Device for induction welding |
| 10/07/1980 | US4227061 Method and apparatus for cladding a metal rod with another metal |
| 09/16/1980 | US4223196 Welded tubular articles and method for making the same |
| 08/19/1980 | CA1084123A1 Process and device for britt welding of metal rods |
| 07/22/1980 | US4214139 Apparatus for surfacing internal combustion engines valves |
| 04/08/1980 | US4197441 High frequency induction welding with return current paths on surfaces to be heated |
| 03/11/1980 | US4192984 Embedment of hard particles in a metal surface |
| 01/23/1980 | EP0007129A1 Method for joining body and bottoms of metal containers and containers so obtained |
| 11/20/1979 | CA1066783A1 Method and apparatus for pipeline induction heating |
| 10/31/1979 | EP0004989A1 Induction welding installation for manufacturing tubes |
| 06/05/1979 | CA1056021A1 Fin to tube welding by high frequency current source |
| 03/13/1979 | US4144494 Method of magnetically testing tubes during welding wherein the same magnetic field is used both for heating and testing |
| 03/13/1979 | US4144433 Method for metal bonding |
| 03/13/1979 | US4144432 Apparatus for surfacing valves for internal combustion engines |
| 01/23/1979 | US4136272 Method of manufacturing heat exchange panels |
| 12/12/1978 | US4129771 Method for butt-welding cylindrical metallic rods |
| 11/28/1978 | CA1043292A1 Container subassembly having a membrane-type closure, and method of assembling the subassembly |
| 09/26/1978 | US4116375 Apparatus for hard facing of valves for internal combustion engines |
| 08/15/1978 | US4107506 Soldering method |
| 03/28/1978 | US4081648 High frequency in-line, electrical welding apparatus for small diameter metal tubing |
| 08/02/1977 | US4039700 High frequency heating of metal powders |