| Patents for B21D 41 - Application of procedures in order to alter the diameter of tube ends (2,982) |
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| 02/26/2003 | CN2537494Y Hydraulic screw pressing closing machine |
| 02/25/2003 | US6523385 Process for preparing the end of a pipe for drawing over a mandrel |
| 02/13/2003 | WO2003011496A1 Expansion tool device for socket pliers |
| 01/30/2003 | US20030019638 Procedures and equipment for profiling and jointing of pipes |
| 01/22/2003 | EP1276572A2 Methods and apparatus for retrofitting compressible flanges |
| 01/22/2003 | EP1152843B1 Sealing method |
| 01/22/2003 | CN2531897Y Three-stage precise faring and throating mechanism for three-station pipe end machining machine |
| 01/21/2003 | US6508097 Modular system for expanding and reducing tubing |
| 01/16/2003 | WO2003004190A1 Method for expanding a tubular blank |
| 01/09/2003 | WO2002062500A3 Method and forming machine for deforming a hollow workpiece |
| 01/08/2003 | CN1390162A Making closed end tubes for surgical instrument |
| 01/02/2003 | EP1270109A1 Method for forming a tube end |
| 12/26/2002 | US20020195256 Downhole sealing |
| 12/26/2002 | US20020194892 Method for forming tube end |
| 12/24/2002 | US6497132 Flaring die with stress relief features |
| 12/11/2002 | CN1095719C Method for making pipe with flange plate |
| 12/10/2002 | CA2238159C Modular multipurpose bending machine and its linear positioning system |
| 12/05/2002 | WO2002060615A3 Method and apparatus for necking the open end of a container |
| 12/04/2002 | CN2523530Y Medium freguency heating apparatus for changing diameter of steel pipe |
| 11/27/2002 | CN2522348Y Packaging steel-drum reducing machine forming roller feed and forming mould structure |
| 11/26/2002 | US6484553 Swage dies for swage-ring clamps |
| 11/26/2002 | US6484550 Method and apparatus for necking the open end of a container |
| 11/21/2002 | WO2002092272A1 Hollow product, method and apparatus for manufacturing the hollow product, and fluid transporting system using the hollow product |
| 11/21/2002 | US20020170336 Powered pipe cutter and flaring tool |
| 11/14/2002 | US20020166668 Tubing anchor |
| 11/07/2002 | US20020162379 Swage dies for swage-ring clamps |
| 10/31/2002 | WO2002085552A1 Method of working end part of metallic tube body and metallic tube body, and method of manufacturing vibrationproof bush using the working method and vibrationproof bush |
| 10/31/2002 | WO2002085551A1 Spindle mechanism |
| 10/31/2002 | US20020157442 End-forming toggle-press |
| 10/31/2002 | DE10215415A1 Rotarily symmetrical component producing process involves partly heating tube of specified wall thickness, axially forging heated region and radially swaging this region |
| 10/30/2002 | CN1093444C Process for expanding end of large diameter thick wall steel pipe |
| 10/30/2002 | CA2345554A1 End-forming toggle-press |
| 10/22/2002 | US6467322 Pipe shaping method |
| 10/17/2002 | US20020149202 Structure for mounting tubes to header member of a heat exchanger |
| 10/16/2002 | CN1374472A Spigot and socket joint steel pipe and its manufacture |
| 10/10/2002 | US20020145281 An apparatus and method for isolating a section of tubing |
| 10/03/2002 | US20020142908 Method and apparatus for necking the open end of a container |
| 10/03/2002 | US20020139162 Method for machining protuberance of special -shaped tube |
| 10/02/2002 | EP1245303A2 Method for machining protuberance of special-shaped tube |
| 10/01/2002 | US6457532 Procedures and equipment for profiling and jointing of pipes |
| 09/26/2002 | US20020133947 Method of fabricating a catalyst converter |
| 09/25/2002 | EP1243768A2 Method of fabricating a catalyst converter |
| 09/24/2002 | US6453714 Method of forming an eccentrically expanded pipe and eccentrically pipe-expanding device |
| 09/10/2002 | US6446323 Profile formation |
| 09/10/2002 | US6446321 Method for producing pipes to be connected in a double-wall piping system and implementing machine |
| 09/03/2002 | US6442991 Device for stretching and molding can bodies |
| 08/29/2002 | DE10108239A1 Aufweitwerkzeug zum Aufweiten von Rohrenden sowie Pressgerät mit einem Aufweitwerkzeug Expansion tool for expanding tube ends and crimping tool with a flaring |
| 08/28/2002 | CN2507580Y Rolling tube reducing shaping die |
| 08/27/2002 | US6439023 Methods and apparatus for retrofitting compressible flanges |
| 08/22/2002 | US20020112338 Profile formation |
| 08/15/2002 | WO2002062504A1 Expansion tool for expanding tube ends and pressing device comprising such an expansion tool |
| 08/15/2002 | WO2002062500A2 Method and forming machine for deforming a hollow workpiece |
| 08/14/2002 | EP1230507A2 Apparatus for swaging an object |
| 08/08/2002 | WO2002060615A2 Method and apparatus for necking the open end of a container |
| 07/31/2002 | EP1226633A1 Pressing tool device in particular a crimping tool device |
| 07/25/2002 | WO2002032597A9 Hydraulically powered flaring hand tool |
| 07/25/2002 | US20020096225 Double-pipe-structure hollow member, method of manufacturing double-pipe-structure hollow member, and fluid treating system employing double-pipe-structure hollow member |
| 07/17/2002 | EP1222041A1 Method of crushing a tube |
| 07/04/2002 | WO2002052166A1 Outer shell unit and method of manufacturing the unit |
| 07/04/2002 | WO2002020208B1 Hollow member, manufacturing method therof, fluid distribution system using the hollow member, and forming apparatus of hollow member |
| 06/27/2002 | US20020079106 Procedures and equipment for profiling and jointing of pipes |
| 06/27/2002 | DE10064376A1 Pipe deformation process for exhaust pipes involves creating widened and thickened pipe wall directly at end sector |
| 06/20/2002 | US20020073759 Method of manufacturing a metal pipe with an eccentrically expanded open end |
| 06/20/2002 | US20020073758 Process for forming tube-shaped hollow bodies made of metal |
| 05/21/2002 | US6389693 Method of making a catalytic converter for use in an internal combustion engine |
| 05/16/2002 | WO2001070424A3 Methods and apparatus for retrofitting compressible flanges |
| 05/15/2002 | CN1349063A Aluminium-plastic pipe connecting part and method and special tool for reaming pipe-ends |
| 05/15/2002 | CN1348843A Expander for thin wall stainless steel tubes |
| 05/14/2002 | US6386010 Spinning processing method and apparatus therefor |
| 05/07/2002 | US6382008 Process and appliance for checking the quality of formings executed by a machine for forming tube ends |
| 05/01/2002 | CN2488619Y A machine for enlarging, contracting and retrofitting steel tube |
| 05/01/2002 | CN1346719A Method for making metal pipe with eccentric expanded open end |
| 04/25/2002 | WO2002032597A1 Hydraulically powered flaring hand tool |
| 04/24/2002 | CN2487467Y Machine for riveting aluminium and plastic cover |
| 04/18/2002 | US20020043093 Hydraulically powered flaring hand tool |
| 04/18/2002 | DE19953525C2 Verfahren zur Herstellung eines metallischen Rohrformstückes A method for manufacturing a metal pipe shaped piece |
| 04/10/2002 | EP1195206A1 Device for forming ogive-like tubes and for spinning tubes of a round or ovoid section |
| 04/10/2002 | CN1082408C Multifunctional head forming and finishing appts. |
| 04/04/2002 | WO2002007907A3 Method and forming machine for deforming a hollow workpiece |
| 03/28/2002 | DE10042465A1 Verfahren zum Verformen von rohrförmigen Hohlkörpern aus Metall Method for forming of tubular hollow bodies made of metal |
| 03/27/2002 | EP1190788A1 A method of manufacturing a metal pipe with an eccentrically expanded open end |
| 03/27/2002 | CN2483115Y Motor driven and multi-stage and series type diameter reducing machine for round tube |
| 03/26/2002 | US6360415 Flanged pipe unit and method of producing same |
| 03/14/2002 | WO2002020208A1 Hollow member, manufacturing method therof, fluid distribution system using the hollow member, and forming apparatus of hollow member |
| 03/07/2002 | WO2002018182A1 Inflator |
| 03/07/2002 | DE10040595A1 Workpiece end area forming device has first pressure chamber between two force transmission elements |
| 03/06/2002 | EP1184101A2 Method for forming metal tubular hollow items |
| 03/06/2002 | CN1338977A Method for deforming a tube in the proximity of one of its ends and tool therefor |
| 03/06/2002 | CN1338353A Technology for machine conic sleeve barrel |
| 02/28/2002 | WO2002016058A1 Forming machine and method for deforming a hollow workpiece |
| 02/28/2002 | DE10039310A1 Tubular holder produced by special tool has tube ends in form of cones and fold grooves along it |
| 02/27/2002 | CN1337282A Expanded figured irregular metal pipe |
| 02/21/2002 | WO2002013992A1 Device for forming an end area of a workpiece |
| 02/06/2002 | CN2475487Y Hydraulic diameter expander |
| 01/31/2002 | WO2002007907A2 Method and forming machine for deforming a hollow workpiece |
| 01/31/2002 | DE10033060A1 Method for producing a cylinder having a base closed at the end comprises connecting a sealing part and the base by friction welding |
| 01/30/2002 | CN1333096A Diameter reducing working method for metal pipe |
| 01/23/2002 | CN1332046A T-shaped member extruding and connecting process and special pressing and forming cutter |
| 01/22/2002 | US6339948 Materials handling, applying a force to the cylindrical member in an axial direction, cause plastic deformation at opposite axial end, shearing on the flange to punch out a ring member |
| 01/17/2002 | US20020005058 Process for forming tubular components |