| Patents for B21D 39 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders (11,420) |
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| 02/23/1982 | CA1118764A1 Heat exchange element and process for production thereof |
| 02/23/1982 | CA1118586A1 Method for assembling tubes |
| 02/10/1982 | EP0045597A1 Method for installing tubes in a tube sheet |
| 01/19/1982 | US4311318 Head gasket assembly and method of making same |
| 01/19/1982 | CA1116503A1 Electric pulse tube expander |
| 01/13/1982 | EP0043672A2 Pipe repair methods and apparatus using an electromagnetically exploded filament |
| 01/12/1982 | US4309892 Crimping machine |
| 01/12/1982 | US4309891 Double action, self-contained swages for joining two small tubes |
| 01/08/1982 | EP0032921A4 Tube expanding tool. |
| 01/05/1982 | US4308736 Tube expander |
| 12/22/1981 | US4306511 Apparatus for the fastening together of sheet materials |
| 12/22/1981 | US4306443 Crimping apparatus |
| 12/22/1981 | CA1114790A1 Structural joint |
| 12/16/1981 | EP0041835A2 Tube expanding |
| 12/10/1981 | WO1981003456A1 A device for pressing tight hose couplings |
| 12/10/1981 | WO1981003443A1 Method of connecting a tube to a flange |
| 12/08/1981 | CA1113845A1 Electric-pulse tube expander |
| 12/02/1981 | EP0040971A2 Method and apparatus for connecting a tube to a flange |
| 12/01/1981 | US4302960 Portable hose fitting crimping device |
| 12/01/1981 | US4302874 Method of forming pipe union |
| 11/24/1981 | USRE30802 Method of securing a sleeve within a tube |
| 11/24/1981 | US4301587 Machine for closing standing seams of sheet metal roofing |
| 11/04/1981 | EP0039200A2 Crimping machine |
| 11/03/1981 | US4297868 Pipe sizing and grooving apparatus |
| 10/13/1981 | US4293991 Apparatus for assembling ladder-type frames |
| 10/13/1981 | CA1110430A1 Method for eliminating residual stresses in a tube as a result of a crimping operation, and tooling for implementation of said method |
| 10/07/1981 | EP0037177A2 Device for hydraulically expanding tubes |
| 10/06/1981 | CA1110149A1 Apparatus for actuating and extracting a tube guide- expander |
| 09/23/1981 | EP0036377A1 Method of assembling by press-fitting one tube on to a sectioned member |
| 09/15/1981 | US4289340 Mechanically attached end fitting with insert for metal tubing |
| 09/15/1981 | US4288906 Pipe jointing |
| 09/15/1981 | CA1109100A1 Tubing joint assembly and method |
| 09/03/1981 | WO1981002460A1 Butt end joining of two pipes by means of a force fitted reciprocating sleeve |
| 09/01/1981 | US4286372 Method of erection of pipe rail jointing system |
| 08/26/1981 | EP0034549A2 Rolling-in process and tool for use in carrying out this process |
| 08/25/1981 | US4285228 Crimping machine for hose assembly |
| 08/25/1981 | US4285224 Electric pulse tube expander |
| 08/18/1981 | US4284022 Bending apparatus |
| 08/18/1981 | CA1107183A1 Tube guide-expander |
| 08/18/1981 | CA1107182A1 Hydraulic expansion swaging of tubes in tubesheet |
| 08/05/1981 | EP0032921A1 Tube expanding tool. |
| 08/04/1981 | US4281862 Tubing joint assembly |
| 07/28/1981 | CA1105960A1 Tube-to-tube joint and method |
| 07/21/1981 | US4279211 Controllably driven seamer |
| 07/21/1981 | US4279066 Method of attaching a solar collector plate to a tube water way |
| 07/15/1981 | EP0031866A1 Method of manufacturing a heating device or a heat exchange element |
| 07/14/1981 | US4277879 Tubing joint assembly method |
| 07/07/1981 | US4276765 Pressing device for a hose coupler |
| 06/24/1981 | EP0030918A1 Method and apparatus for applying a sealing film strip to the edge of a blank |
| 06/23/1981 | US4274352 Portable crimping tool for attachment of sheet metal plates to a frame |
| 06/23/1981 | CA1103431A1 Coupling process of two members |
| 06/02/1981 | US4270379 Roll straightening tool |
| 05/27/1981 | EP0029415A2 Process and machine for making the head and tail junctions between thin metal strips |
| 05/26/1981 | US4269438 Tube-to-tube joint |
| 05/26/1981 | CA1101906A1 Tube fitting assembly with deformable seal |
| 05/20/1981 | EP0028809A1 Methods and devices for rolling-in tubes coated on the interior |
| 05/20/1981 | EP0028671A1 Tube joint for the connection of tubes with flanges, full or hollow sections, and method of manufacturing the tube joint |
| 05/19/1981 | CA1101463A1 Heat recoverable metallic coupling |
| 04/28/1981 | US4263713 Apparatus for actuating and extracting a tube guide-expander |
| 04/21/1981 | US4262518 Tube expander and method |
| 04/14/1981 | US4261092 Method of electroforming a metallic sleeve and ceramic shaft joint |
| 03/31/1981 | CA1098562A1 Swaged joint |
| 03/24/1981 | US4257155 Method of making pipe coupling joint |
| 03/24/1981 | CA1098147A1 Tube fitting assembly with shoulder means |
| 03/11/1981 | EP0024986A1 Process for providing a tube with a connecting ferrule and use of the obtained connecting ferrules for the connection of tubes |
| 03/10/1981 | CA1097040A1 Method for connecting two members |
| 03/05/1981 | WO1981000529A1 Batten seaming machine |
| 03/04/1981 | EP0024362A1 A method and apparatus for stretching an endless metal band |
| 03/03/1981 | US4253224 Fixtureless method of making tube joints |
| 02/25/1981 | EP0024101A1 Mechanical connection and method of connecting mechanically two components |
| 02/19/1981 | WO1981000364A1 Tube expanding tool |
| 02/17/1981 | US4250607 Machine for pressing hose couplings onto hoses |
| 02/11/1981 | EP0023581A1 Tube expander and method |
| 02/10/1981 | US4249759 U-Bolt clamp |
| 02/10/1981 | US4249298 Method for connecting two members |
| 02/10/1981 | CA1095222A1 Method and apparatus for expanding tubes |
| 02/03/1981 | CA1094920A1 Crimping diameter adjusting valve |
| 01/28/1981 | EP0023005A1 Tool for the production of a tube-connection |
| 01/13/1981 | US4244091 Hose crimping apparatus |
| 01/07/1981 | EP0021660A1 Method and apparatus for producing an indentation in a tubular body |
| 01/06/1981 | US4242893 Stop collar for tube expander |
| 12/16/1980 | US4239713 Method and machine for expanding tubes in a tube wall |
| 12/16/1980 | US4238878 Method and apparatus for forming shroud |
| 11/25/1980 | US4235013 Tube guide-expander |
| 11/25/1980 | CA1090103A1 Core tools |
| 11/25/1980 | CA1090102A1 Locking joint manufacture |
| 11/18/1980 | US4233726 Method of joining a tube to a plate |
| 11/18/1980 | CA1089683A1 Fastener |
| 11/11/1980 | US4232621 Metal-working hand tool |
| 11/11/1980 | US4232442 Removal of residual stresses in a tube seated in a tube plate |
| 11/11/1980 | CA1089410A1 Internal and external extruded nipples or nozzles in pipe headers or boiler drums |
| 11/04/1980 | US4231596 Tubing joint assembly |
| 10/28/1980 | US4229869 Method of repairing aluminum plate fin coils |
| 10/21/1980 | US4228941 Method of joining an inner metal pipe with an outer surrounding metal pipe |
| 10/15/1980 | EP0017486A1 Method of and apparatus for forming a joint between a step and a stile of a ladder |
| 10/14/1980 | US4227824 Non-tarnishing panel edge spot welding arrangement |
| 10/07/1980 | US4226449 Pipe clamp |
| 10/07/1980 | CA1087079A1 Seam forming apparatus |
| 10/07/1980 | CA1086997A1 Expanding and beading apparatus for tubes and the like |
| 09/30/1980 | US4224966 Crack arrestor |