| Patents for B21D 41 - Application of procedures in order to alter the diameter of tube ends (2,982) |
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| 04/15/2009 | CN201220256Y Device for mouth stretching of end of metal pipe fittings |
| 04/15/2009 | CN101410199A Apparatus for pipe end sizing and method for pipe end sizing |
| 04/09/2009 | DE19953997B4 Verfahren zum Herstellen eines Doppeltrichters, insbesondere aus Edelstahl, für ein Katalysatorgehäuse A method for producing a double funnel, in particular stainless steel, for a catalytic converter housing |
| 04/08/2009 | EP2000227A9 Metal tube end correcting apparatus and metal tube end correcting method |
| 04/08/2009 | EP1922159B1 Method and apparatus for shaping various cross-sections on metal pipes |
| 04/08/2009 | CN101405097A Bearing assemblies |
| 04/08/2009 | CN100475429C A labor-saving automobile hub forming method and device thereof |
| 03/31/2009 | US7509829 Mandrel assembly and method of using the same |
| 03/25/2009 | CN101394953A Method of producing a steering gear shaft part and stearing gear shaft having such a steering gear shaft part |
| 03/25/2009 | CN101394952A Mechanical expander and production method for seamless steel pipe |
| 03/18/2009 | EP2036627A1 Electrical machine for the deformation of profile ends |
| 03/18/2009 | EP2035210A1 Device for preparing pipe ends for jointing |
| 03/18/2009 | CN201208630Y Flaring device for pipe end |
| 03/18/2009 | CN201208629Y Movable swaging frame device of horizontal type tube expanding machine |
| 03/18/2009 | CN201208628Y Device for moving rear seat of horizontal type tube expanding machine |
| 03/11/2009 | CN101380657A Pipe-end rotary extrusion expansion flanger |
| 03/11/2009 | CN101380649A High precision steel tube manufacture technique and system |
| 03/05/2009 | DE102007041379A1 Pipe machining device for forming chamfer at pipe end, has machining element movably fitted at machining head and pushed by centrifugal force of pipe, where force is produced by rotation of machining head |
| 03/04/2009 | CN201201016Y Transition device of hot contracting equipment |
| 03/04/2009 | CN201201012Y Binding off mold of radiating apparatus leader |
| 03/04/2009 | CN101376204A Novel technique for producing seamless steel pipe |
| 02/26/2009 | US20090049884 Method for Correcting Metal tube and Corrective Press Die |
| 02/25/2009 | CN101372020A Method for preparing U-shaped seamless steel pipe of high-pressure feedwater heater |
| 02/18/2009 | CN201195184Y Pre-enlarging apparatus and enlarging apparatus for pipe workpiece |
| 02/18/2009 | CN201195177Y Round temperature-sensing sleeve punch forming machine |
| 02/12/2009 | US20090038367 Apparatus for pipe end sizing and method for pipe end sizing |
| 02/11/2009 | CN201192714Y Pipe end treatment arrangement |
| 02/11/2009 | CN101362177A Forming technique of hose elbow core and processing device used in the technique |
| 02/11/2009 | CN101362176A Processing method of stamping wheel core |
| 02/11/2009 | CN101362168A Deep-drawing processing device |
| 02/11/2009 | CN100460103C Tube expanding device |
| 02/04/2009 | EP2020267A1 Method for forming a tubular element |
| 02/04/2009 | CN101357392A Link-plate continuous automatic molding device |
| 02/03/2009 | US7484297 Method and apparatus for manufacturing a catalytic converter |
| 01/29/2009 | DE102007034895A1 Verfahren zur Herstellung von warmgefertigten nahtlosen Rohren mit optimierten Ermüdungseigenschaften im verschweißten Zustand A process for the production of hot-worked seamless pipes with improved fatigue properties in the welded state |
| 01/28/2009 | EP2018915A1 Expansion-molding method and expansion-molding device for steel pipe |
| 01/28/2009 | CN201186327Y Rolling device of rolled tube joint |
| 01/21/2009 | CN100453954C Thermotube and its sealing method |
| 01/15/2009 | US20090013678 Heat exchanger for the exhaust gas line of a motor vehicle, method for producing a heat exchanger and assembly tool herefor |
| 01/13/2009 | US7475583 Method for repairing metal pipe |
| 01/08/2009 | WO2009003498A1 Device and method for the axial forming of elongated hollow bodies |
| 01/08/2009 | WO2007098513A8 Method of producing a steering gear shaft part and stearing gear shaft having such a steering gear shaft part |
| 01/07/2009 | EP2011581A2 Device for forming the end of a tube |
| 01/07/2009 | CN101337253A Bottling technique of bottle-neck type pot and special-purpose device thereof |
| 01/07/2009 | CN100448565C Force control rocking-rolling type rolling sealing machine tool |
| 12/31/2008 | WO2009000966A1 Method and tool for expanding a pipe end |
| 12/31/2008 | WO2009000020A1 An extension for a pipe expander |
| 12/31/2008 | EP2007534A1 Bearing assemblies |
| 12/31/2008 | CN201172088Y Steel tube end beading device |
| 12/31/2008 | CA2691416A1 An extension for a pipe expander |
| 12/24/2008 | CN201168749Y Hydraulic cold pipe-expanding machine |
| 12/24/2008 | CN201168748Y Vertical pipe expander capable of automatically locating and clamping |
| 12/24/2008 | CN201168747Y Vertical type rod expanding arbor machine capable of automatically selecting expanding arbor row number |
| 12/24/2008 | CN201168732Y Integrated pipe bender |
| 12/24/2008 | CN101327510A Method for combining carbon steel-based stainless steel internal composited tube |
| 12/24/2008 | CN100444984C Manufacturing installation for thinning and closing in tube wall at copper tube end |
| 12/18/2008 | DE10040173B4 Verfahren zum Aufweiten und Verformen eines Dosenkörpers und Vorrichtung zur Durchführung des Verfahrens A method of expanding and deforming a can body and apparatus for carrying out the method |
| 12/17/2008 | EP2001616A1 Apparatus for can expansion |
| 12/17/2008 | CN101324293A Tube used for refrigerating device and its processing method |
| 12/16/2008 | US7464577 Method for fabricating rotary machines |
| 12/11/2008 | US20080302164 Method and device for manufacturing pipe connectors |
| 12/10/2008 | EP2000227A2 Metal tube end correcting apparatus and metal tube end correcting method |
| 12/10/2008 | CN201161261Y Four-wheel sealing machine |
| 12/04/2008 | WO2008147487A1 Flexible necking station arrangement for larger beverage cans |
| 12/03/2008 | CN201157875Y Power torque tube expander |
| 12/03/2008 | CN101314174A Intermediate frequency induction heating pipe-expanding machine |
| 12/02/2008 | US7458497 Hollow product, method and apparatus for manufacturing the hollow product, and fluid transporting system using the hollow product |
| 12/02/2008 | CA2440259C Tubing expansion tool |
| 11/26/2008 | EP1995001A1 Method and device for producing pipe connections |
| 11/26/2008 | EP1994997A2 Method and forming machine for manufacturing a product having various diameters |
| 11/26/2008 | CN101310886A Method and device for producing pipe connections |
| 11/25/2008 | US7454943 Articulated bending brake for sheet metal forming |
| 11/20/2008 | US20080282761 Crimping die |
| 11/19/2008 | EP1992428A1 Mechanical expander and production method for seamless steel pipe |
| 11/19/2008 | CN201150972Y Benchmark structure device for middle part of expansion pipe machine of gilled tube radiator |
| 11/19/2008 | CN201150970Y Mould position confirmation device in tube end forming machine |
| 11/19/2008 | CN101306445A Forming device |
| 11/19/2008 | CN100434205C Method and its device for forming heat pipe shrinking pipe |
| 11/12/2008 | EP1989011A1 Method of producing a steering gear shaft part and stearing gear shaft having such a steering gear shaft part |
| 11/12/2008 | CN101301671A Pipe end moulding method |
| 11/06/2008 | WO2007112381A3 High performance expandable tubular system |
| 11/06/2008 | DE19940744B4 Radialpresse Radial press |
| 11/05/2008 | CN201143543Y Electric ignition tube automatic closing device |
| 11/05/2008 | CN201143534Y Indenter for riveting edge on orifice |
| 11/05/2008 | CN101298089A Pipe-expansion mold |
| 11/05/2008 | CN101298088A Pipe-reduction mold |
| 10/29/2008 | CN101294760A Heat exchanger with connector and method of manufacturing the connector |
| 10/16/2008 | WO2008123034A1 Method for treating pipe end of metal pipe material and plug |
| 10/15/2008 | CN101284292A Hole expansion die |
| 10/15/2008 | CN101284289A Forming die of special-shaped copper aluminum joint |
| 10/09/2008 | US20080245127 Method Of Forming A Rotary Device |
| 10/08/2008 | EP1977843A1 Apparatus and method for preparing pipe ends |
| 10/08/2008 | CN101279342A Device for moving rear seat of horizontal type tube expanding machine |
| 10/02/2008 | US20080236233 Rotary flaring tool and method of use |
| 10/01/2008 | CN201124302Y Simple capillary separator |
| 10/01/2008 | CN101274401A Method for processing ground pile without weld joint |
| 10/01/2008 | CN101274347A Method for processing pipe body, method for producing oil cylinder device and oil cylinder device |
| 10/01/2008 | CN101274336A Method for producing variable diameter pipe |
| 09/24/2008 | EP1972395A2 Apparatus and method for reducing a hollow rack end diameter and hollow rack thus obtained |
| 09/24/2008 | CN201120437Y Closing-in machine of vacuum correcting unit |