| Patents for B21D 3 - Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (4,094) |
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| 12/13/2006 | CN2845940Y Split tube expansion device |
| 12/13/2006 | CN2845939Y Anode aluminium guide rod straightener |
| 12/06/2006 | CN2843649Y Horizontal swing-edge corrector |
| 12/05/2006 | US7143627 Apparatus and method for removing dents from metal |
| 12/05/2006 | US7143619 Spin-forming method, spin-forming apparatus, and catalytic converter |
| 11/29/2006 | CN1286589C Method for correcting workpiece crosssection shape of pipe bended by pipe bending machine |
| 11/28/2006 | US7140219 Swaging head assembly |
| 11/28/2006 | CA2282589C Method for forming sheet metal strip |
| 11/22/2006 | CN2838789Y Workpiece aligning device |
| 11/16/2006 | WO2006094779A3 Device for non-cutting dressing vehicle rims for car, motor lorry, motorcycle or the like wheels and a method for dressing said rims |
| 11/16/2006 | DE102005022052A1 Method for straightening long metal workpieces especially rail track lengths by applying bending forces between a pair of thrust supports and a pair of thrust hammers with variable position and spacing |
| 11/16/2006 | DE102005021946A1 Method for straightening long metal workpieces especially rail track lengths by applying bending forces between a pair of thrust supports and a pair of thrust hammers with variable position and spacing |
| 11/15/2006 | CN2836948Y 精整机 Finisher |
| 11/15/2006 | CN1861283A Combination system for servo-roll-separating and quick-backward of cross-roll straightening machine |
| 11/07/2006 | US7131305 Method and apparatus for lean spin forming |
| 11/01/2006 | CN2832339Y Small-size metal parts shoulder and bottom punching and reshaping device |
| 10/25/2006 | CN1850386A Wire rod stretching pipe edge mould skin removing device and process |
| 10/25/2006 | CN1850385A Steel rail pre-welding straightening-rust-cleaning integrating machine and its applying method |
| 10/25/2006 | CN1850384A Automatic combined switching mechanism for two-way straightening pivot point |
| 10/25/2006 | CN1281353C Straightener for 3D round bar with multiple skew rollers |
| 10/18/2006 | EP1712306A1 Cold-finished seamless steel pipe |
| 10/12/2006 | WO2006106834A1 Automatic control method of roll type pipe correction machine |
| 10/11/2006 | CN1843708A Plain stage dedicated for testing and finishing roundness of thin-wall cylinder |
| 10/03/2006 | US7114358 Tube expanding apparatus |
| 09/28/2006 | DE102005022043B3 Straightening long workpieces, employs two hammers and two anvils which are spaced apart and offset from each other, one pair being closer to the workpiece ends |
| 09/27/2006 | CN2820375Y Cold bending type steel forming unit |
| 09/27/2006 | CN2820374Y Eight claw type anode steel claw omnibearing straightening mechanism |
| 09/20/2006 | CN1833791A Working table for hub correction and hub correction appts |
| 09/14/2006 | WO2006094779A2 Device for non-cutting dressing vehicle rims for car, motor lorry, motorcycle or the like wheels and a method for dressing said rims |
| 09/13/2006 | CN1830591A Twisted steel anchor rod inclined rib round rectifying machine |
| 09/06/2006 | CN2813147Y Straightener for U Shape pipe bending machine |
| 09/06/2006 | CN2813145Y Axial assembling speed reducing electric machine flattening machine |
| 09/06/2006 | CN1273232C Method for producing modified half-hollow section of pure copper and manufacturing mold therefor |
| 08/23/2006 | CN1820868A Mechanical corrector for T-shape steel member bending deformation |
| 08/16/2006 | CN2805970Y Rotor finishing machine |
| 08/16/2006 | CN2805968Y Bearing pack of backing roll |
| 08/16/2006 | CN1819879A Aluminum pipe having excellent surface quality, method and apparatus for manufacturing the aluminum pipe, and photosenstive drum base body |
| 08/10/2006 | US20060174669 Apparatus for rectifying round pipe and tubing |
| 08/09/2006 | CN2803558Y Auto punching forming mould and attachment thereof |
| 08/09/2006 | CN2803556Y Petroleum drill rod leveler |
| 08/02/2006 | CN2801316Y Hydraulic elongation straightening machine |
| 08/02/2006 | CN1812855A Method for leveling hot profiles |
| 08/02/2006 | CN1267217C Method for blasting finishing mould |
| 08/01/2006 | CA2379629C Apparatus and method for re-shaping brake cores |
| 07/27/2006 | US20060162412 Swaging head assembly |
| 07/26/2006 | CN1809431A Apparatus for rectifing round pipe and tubing |
| 07/19/2006 | CN2796889Y Reinforced bar rib peeling thread rolling machine |
| 07/19/2006 | CN2796881Y Prefastening manual regulating device of shaped steel straightening machine pressing mechanism |
| 07/12/2006 | CN2794669Y Circule corrector for large caliber pipe butt-joint |
| 07/12/2006 | CN2794668Y Circule corrector for stick type sieve drum |
| 07/11/2006 | US7073366 Method and apparatus to reduce the width of a slot or opening in a pipe, tube or other object |
| 07/05/2006 | CN2792642Y Repairing mould of bearing sealed cover on train |
| 07/05/2006 | CN2792637Y Multifunctional self-exciting pipe aligning apparatus of scaffold |
| 06/29/2006 | US20060137864 Pipe section for a pipe coil |
| 06/29/2006 | DE102004061065A1 Stretching-bending straightening machine for straightening metal strips comprises a drive for driving rollers to prevent a slip between the metal strip being straightened and the rollers |
| 06/28/2006 | CN1795064A Method and apparatus for reforming and reprofiling a bottom portion of a container |
| 06/27/2006 | US7066210 Compression pipe repairing and reinforcing methods |
| 06/27/2006 | US7065997 Apparatus for cutting and nibbling a sheet metal in coil form |
| 06/21/2006 | CN2788924Y Roller changing device for cross-roll bar and tube straightening machine |
| 06/21/2006 | CN2788921Y High precision flattening machine support roll apparatus |
| 06/14/2006 | CN1785587A Preparation method of Cu/Ta/Cu composite tube |
| 06/07/2006 | CN2785747Y Amendment head |
| 05/26/2006 | WO2005101223A3 Apparatus for straightening a propeller drive shaft |
| 05/23/2006 | US7047789 Pipe bending apparatus |
| 05/16/2006 | US7043954 Apparatus for straightening a propeller drive shaft |
| 05/10/2006 | CN2778425Y Embedded prestressed stand device |
| 05/04/2006 | US20060090536 Axle straightening press |
| 05/03/2006 | EP1652593A1 Method for straightening rolled metal sections |
| 05/03/2006 | EP1651364A1 Apparatus for rectifing round pipe and tubing |
| 05/03/2006 | CN2776588Y Push pull type alignemnt device for anode steel claw |
| 05/03/2006 | CN1765535A Large-scale digit-controlled hydraulic pressure straightener main frame |
| 04/20/2006 | WO2004112978A8 Apparatus for rectifying round pipe and tubing |
| 04/11/2006 | US7024899 Roll assembly for a rolling mill |
| 04/05/2006 | EP1641575A1 Method for leveling hot profiles |
| 04/05/2006 | CN2768918Y Main driving device of variable roller counting roller type levelling machine branch roller driving |
| 04/05/2006 | CN2768917Y Variable roller counting roller type levelling machine correct roller regulating device |
| 03/29/2006 | CN2766995Y Crystallizer brass pipe shaping device |
| 03/29/2006 | CN1752224A Method for heat treatment coning of bearing |
| 03/22/2006 | EP1259336B1 A method and apparatus for reduction of embedded or inherent torsional strain in reinforcing steel or the like |
| 03/22/2006 | CN1246100C Method and equipment for straightening deformed bended work piece |
| 03/22/2006 | CN1246099C Distortion correcting method and device for plane body |
| 03/21/2006 | US7013692 Valve guide grooving tool |
| 03/16/2006 | DE102005011313B3 Device for straightening of damaged wheel rim, comprising telescopic arm holding shaping element |
| 03/15/2006 | CN1745924A Correcting and expanding external-pipe combination of welding drum |
| 03/09/2006 | DE102004043401A1 Casting component aligning method for use during manufacturing of cup-shaped mould, involves adjusting segments of embossing die along height of die based on azimuth of component, where component is aligned after heat treatment |
| 03/01/2006 | EP1429886B1 Synchronised tubular friction welding arrangement and method |
| 02/23/2006 | US20060037376 Valve guide grooving tool |
| 02/22/2006 | CN2759629Y Whipping control device used in pipe/bar material straightening |
| 02/22/2006 | CN1242858C Fixed roll radian-change bending-point position cold-bending shaping process |
| 02/15/2006 | CN1734124A Multiple axial decelerator for bending machine |
| 02/09/2006 | DE10329525B4 Verfahren und Vorrichtung zum Richten eines warmen Profils sowie Verfahren zum Herstellen eines normgerechten Profils Method and device for directing a hot profile and method for producing a standardized profile |
| 02/08/2006 | CN1730186A Hydraulic dynamic constant pressure straightening method |
| 01/26/2006 | US20060016239 Apparatus and method for removing dents from metal |
| 01/25/2006 | EP1511587B1 Feeding duct for a straightening machine |
| 01/19/2006 | DE19525513B4 Vorrichtung zum Richten eines Flanschprofils als Richtgut Means for directing a flange profile as straightened |
| 01/12/2006 | US20060005599 Common-rail injection system for diesel engine |
| 01/12/2006 | US20060005598 Weld box auto roll sensing and positioning system |
| 01/04/2006 | CN2749596Y Metal pipe straightening die set |
| 01/04/2006 | CN1715449A Boiler plate heating device and method |
| 12/29/2005 | DE19953138B4 Verfahren und Rollenrichtmaschine zum Richten eines Stabes oder Profils Procedures and roller straightening machine for straightening a rod or profile |