| Patents for B23K 33 - Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby (3,169) |
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| 02/25/1992 | US5090611 Method of making a cross joint between pipes |
| 02/18/1992 | US5088638 Method for making sucker rods |
| 02/18/1992 | CA1295957C Welded metal-plastic composite storage tanks and manufacture process |
| 01/23/1992 | WO1992000829A1 Process and device for the preparation of two metal sheets to be butt-welded |
| 01/02/1992 | DE4118977A1 New cathodic protection of metal sheeting esp. for vehicle body - involves locating protective material esp. zinc in surface depressions with intermediary sheet surface supporting welding electrodes |
| 12/25/1991 | CN1015219B Process for fixing pipes to thick-wall assemblies e.g.vessels of pressurized-water reactor by means of welding |
| 12/11/1991 | EP0459988A1 Method for manufacturing of square pipes from coated steel strips. |
| 10/29/1991 | US5060739 Cutter assemblies for rotary drill bits, and method of manufacturing same |
| 10/15/1991 | US5056704 Tube fitting having a saddle bead with conforming pilot |
| 10/15/1991 | US5056703 Method of splicing webs |
| 09/12/1991 | DE4111625A1 Soldering zone of collectors for heated vehicle windows - is screened zone with structured screen size |
| 09/11/1991 | EP0445633A1 Method to weld metallic beams and metallic beams thus produced |
| 08/13/1991 | US5038857 Method of diffusion bonding and laminated heat exchanger formed thereby |
| 06/18/1991 | US5024074 Apparatus and method for selectively forming a thickened edge on a plate of formable material |
| 06/13/1991 | DE4000897C1 Erect border with integrated gas guide - used for safe welding of stainless steel sheets |
| 06/12/1991 | CN1052168A High-low temp. rotor for turbines |
| 06/11/1991 | US5022581 Welding parts having different thermal expansions |
| 06/06/1991 | DE4037508A1 Heat exchanger mfr. process - involves two=part deflection chamber with bent connection edges |
| 05/15/1991 | EP0426950A2 Profiled parts for a sheet metal canal |
| 05/02/1991 | EP0424731A2 Method to realize a soldering joint for a rotating coupling between a sleeve and a nut, for connecting pipes in the air conditioning and cold fields |
| 04/25/1991 | DE4031837A1 Connection flange for pipes - is designed to compensate for weed distortion and maintain air tight joints |
| 04/17/1991 | EP0422763A1 A method of welding aluminium based workpieces |
| 04/10/1991 | EP0421091A1 Lap-weld- or web joint-weld for galvanized sheet-irons |
| 04/09/1991 | US5006917 Thermocompression bonding in integrated circuit packaging |
| 04/02/1991 | US5004884 Forming grooves, using flux |
| 03/07/1991 | DE3928469A1 Bevel welding aluminium sections - pre-stamped with longitudinal protrusions on inside surfaces inside which hairline cracks appear and can be easily removed |
| 02/27/1991 | EP0413937A2 Thermocompression bonding in integrated circuit packaging |
| 02/19/1991 | US4993619 Joint and method for single side welding and self-fixturing of closed steel sections |
| 02/07/1991 | DE4023393A1 Welding together sheet sections to form closed box section - using interlocking edges to produce edge flange which does not protrude |
| 01/29/1991 | US4988033 Repair of flight bars |
| 01/22/1991 | CA1279228C Process for producing a folded rim |
| 01/08/1991 | US4983241 Method of splicing webs |
| 01/03/1991 | DE4019098A1 Sinter material prepn. for welding to other sinter workpiece, or steel - by compacting area of weld joint to reduce porosity |
| 01/03/1991 | DE4018880A1 Method of welding two members |
| 12/19/1990 | EP0403037A1 Compression fitting |
| 12/12/1990 | EP0401569A1 Process for welding branch pipes onto a container wall provided with bores |
| 11/29/1990 | WO1990014178A1 Apparatus and method for selectively forming a thickened edge on a plate of formable material |
| 11/19/1990 | CA2016338A1 Apparatus and method for selectively forming a thickened edge on a plate of formable material |
| 11/08/1990 | CA2000484A1 Method of making hemmed joints utilizing laser welding |
| 10/16/1990 | US4962586 Method of making a high temperature - low temperature rotor for turbines |
| 10/04/1990 | WO1990011161A1 Arrangement for welding coated workpieces using a laser beam |
| 09/27/1990 | DE3909471A1 Arrangement for welding coated workpieces by means of laser irradiation |
| 09/20/1990 | WO1990010521A1 Soldering connection and process for making it |
| 09/05/1990 | CN1009471B Method of manufacturing control wheel for high-pressure rotor of steam turbine |
| 08/22/1990 | EP0383040A1 Procedure for additional welding of a fold of a vessel |
| 08/14/1990 | US4948938 Process for fastening a pipe by welding to a thick wall member such as a pipe-carrying shell of a nuclear reactor vessel |
| 08/14/1990 | CA1272690A1 High-pressure structure made of rings with peripheral weldments of reduced thickness |
| 08/07/1990 | US4946304 Glass coated article |
| 07/26/1990 | DE3900166A1 Hollow panels |
| 07/26/1990 | CA2008411A1 Method of and apparatus for the formation of containers |
| 07/24/1990 | US4943001 Tube-type vessel having crevice-free joints and method for manufacturing the same |
| 07/04/1990 | WO1990007392A1 Method for manufacturing of square pipes from coated steel strips |
| 07/04/1990 | CA2045127A1 Method for manufacturing of square pipes from coated strips |
| 06/28/1990 | DE3902163A1 Method and apparatus for strengthening a container seam |
| 06/27/1990 | EP0375591A2 Inertia weld improvements through the use of staggered wall geometry |
| 06/21/1990 | DE3842452A1 Aus blech bestehender behaelter From sheet Vessels consisting |
| 06/13/1990 | EP0372663A1 Method for fastening a discoid rotation-symmetrical structural body to a shaft |
| 05/02/1990 | EP0366172A1 Hole weld member |
| 04/11/1990 | EP0363312A2 Metallic connection with a tubular body |
| 04/10/1990 | US4916284 Folding hem flange and tabs around an edge of a steel sheet |
| 03/27/1990 | US4912299 Gas metal arc welding of aluminum-based workpieces |
| 03/27/1990 | US4912295 Butt welding method |
| 03/13/1990 | US4908491 Integrated modular tool system for end preparation and end-to-end welding of pipes |
| 03/06/1990 | US4905858 Sheetmetal container with attached end closures |
| 02/27/1990 | US4903887 Inertia weld improvements through the use of staggered wall geometry |
| 01/16/1990 | US4893744 Lining method using clad pieces and a clad piece for the method |
| 01/03/1990 | EP0348685A1 Weld joint between a flexible metal tube and a hollow cylindrical metal joining piece |
| 11/28/1989 | US4883937 Butt welding method by means of laser beam |
| 11/23/1989 | DE3815068A1 Welded joint between two thin plates |
| 11/02/1989 | DE3813860A1 Method of welding together (joining) parts of composite materials |
| 10/18/1989 | EP0337182A2 Joining area of two thin sheet metals |
| 09/28/1989 | DE3807976A1 Method of welding or brazing a metal part joined to plastic |
| 09/28/1989 | DE3807464A1 Appliance for preparing welded joints |
| 09/19/1989 | US4867641 Outer wall structure of a torque converter and others |
| 09/12/1989 | US4866245 Method for manufacturing a rotary rock bit with improved weld root geometry |
| 08/08/1989 | US4854467 Container of sheet metal |
| 07/27/1989 | DE3801129A1 Method of connecting two weldable metal parts |
| 07/20/1989 | DE3800150A1 Method of welding the end of a helically corrugated metal tube to a smooth-walled tube |
| 06/22/1989 | DE3741655A1 Method for producing welded joints |
| 06/07/1989 | CN1033335A Process for fixing pipes to thick-wall assemblies, e.g. vessels of pressurized-water reator, by means of welding |
| 05/30/1989 | US4834614 Segmental vane apparatus and method |
| 05/24/1989 | EP0180070B1 Enamelled object and method of fabricating an enamellable weld joint |
| 05/24/1989 | CN1004261B Wild joint |
| 05/23/1989 | US4833276 Shield structure of electronic equipment |
| 05/09/1989 | CA1253810A1 Method of manufacturing a control wheel for the high- pressure rotor of a steam turbine |
| 04/20/1989 | DE3808438A1 Device for receiving and delivering liquid and pasty substances |
| 04/19/1989 | EP0312421A1 Method of fixing by welding a nozzle to a thick-walled element such as a nozzle belt of a nuclear reactor vessel |
| 03/23/1989 | DE3730226A1 Loetverbindung und verfahren zu ihrer herstellung Solder joint and process for their preparation |
| 03/21/1989 | US4813806 Welding beveling of T-joint |
| 03/14/1989 | US4812107 Method of manufacturing a control wheel for the high-pressure rotor of a steam turbine |
| 03/09/1989 | DE3813433A1 Container, in particular drum |
| 03/08/1989 | EP0305920A2 Container, in particular a barrel |
| 03/02/1989 | DE3831692A1 Method for connecting the cover plate and/or foot piece on the one hand to the blade on the other by means of a brazing or jointing process |
| 02/02/1989 | DE3724648A1 Joining seam |
| 01/25/1989 | EP0300005A1 Integrated modular tool system. |
| 11/10/1988 | DE3713527A1 Schweissnaht Weld |
| 11/02/1988 | EP0288884A1 Weld |
| 11/02/1988 | EP0288756A1 Corner joints to connect two hallow space sections provided with a bevel cut together |
| 09/22/1988 | DE3708011A1 Light-gauge sheet welding process and apparatus for carrying it out |
| 09/07/1988 | EP0281024A2 Thin-walled metal container |