| 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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| 06/20/2001 | CN2435165Y Reinforced bar straightening and length-set cutting machine |
| 06/13/2001 | EP1105230A1 Method for forming sheet metal strip |
| 06/06/2001 | CN1066650C Conveying chain and method for producing crimp working products for chain |
| 05/31/2001 | DE19953138A1 Straightening method for esp. bars and roller straightening machine with individually adjustable rollers and straightening in reversing operation |
| 05/31/2001 | DE10020590A1 Mehrfachmass-Streifen und Verfahren zum Ausgleich desselben The same multiple mass strip and method of compensation |
| 05/30/2001 | EP0946312B1 Method for automatic conducting of a straightening process |
| 05/30/2001 | CN1296865A Method for mfg. ring metal sheet group |
| 05/22/2001 | US6234000 Ball-bat repairing method |
| 05/16/2001 | EP1100185A1 Method of manufacture of annular shaped lamination stack |
| 05/16/2001 | CN1065785C Method for flattening partially depressed metal body of automobile |
| 05/03/2001 | US20010000564 Ball-bat repairing apparatus and method of use |
| 04/25/2001 | EP1093867A2 Bend-straightening machine with drive mounted on top of press frame |
| 04/12/2001 | WO2001024953A1 Straightening machine for straightening elongated bodies |
| 04/12/2001 | CA2388521A1 Straightening machine for straightening elongated bodies |
| 04/11/2001 | CN2426392Y Centrifugal roller wire straightener |
| 04/05/2001 | WO2000016926A9 Method and apparatus for reshaping a container body |
| 04/05/2001 | DE19945361C1 Shaft curvature and/or eccentricity measuring method detects curvature in vicinity of centering pins supporting ends of shaft for calculating curvature along shaft length |
| 04/04/2001 | CN1064003C Method for repairing corrugated rollers by hot pressing |
| 02/28/2001 | EP1079192A2 Method of manufacturing a flat corrugated tube |
| 02/28/2001 | CN1062498C Cross feeding type metal bar straightening device |
| 02/27/2001 | US6192731 Method for forming sheet metal strip |
| 02/13/2001 | US6185976 Method for adjusting a diaphragm spring |
| 02/08/2001 | WO2001008830A1 Apparatus and method for re-shaping brake cores |
| 02/08/2001 | DE10008688C1 Mechanical pipe expander has a lubricant cladding between the mantle surfaces of the multi-edge pyramid and the moving segments to reduce wear between moving surfaces without a lubricant oil |
| 01/25/2001 | WO2001005533A1 Leaf spring straightening apparatus |
| 01/16/2001 | US6173599 Leaf spring straightening apparatus |
| 12/27/2000 | EP1062062A1 Process and device for straightening wire |
| 12/19/2000 | US6161414 Method of and device for finishing cage windows |
| 12/14/2000 | DE19926364A1 Device for controlling a lifting and lowering apparatus of a roller directing machine comprises hydrocylinders connected to a common multi-way valve |
| 12/13/2000 | CN2410057Y Rolled straightening machine for wedge lateral rolling shafts |
| 12/07/2000 | DE19925781A1 Verfahren zum Richten von verformten Turbinenbauteilen Method for straightening deformed turbine components |
| 11/28/2000 | US6151949 Method of manufacturing a flat corrugated tube |
| 11/16/2000 | DE19920003A1 Flexural alignment of elongated workpiece involves controlling alignment program according to computing deviation of a sensor contact position from that for ideal straight part |
| 11/08/2000 | CN2404608Y Machine for straightening steel tube |
| 11/02/2000 | EP1048371A2 Straightener for rolled ferrous products, having horizontally openable shoulders for fast change of the rolls |
| 11/01/2000 | CN1271626A Straightening machine for rolling iron products having horizontal opening shoulder part capable of quickly change rolls |
| 11/01/2000 | CN1057947C Machine for aligning rolled beam particularly beam with H cross section |
| 10/28/2000 | CA2306660A1 Straightener for rolled ferrous products, having horizontally openable shoulders for fast change of the rolls |
| 10/26/2000 | DE10013229A1 Verfahren und maschinelle Einrichtung zum Richten von Profilen Procedures and Machinery for directing profiles |
| 10/25/2000 | CN2402415Y Steel pipe straightener |
| 10/25/2000 | CN1057714C Method for mfg. cold rolled steel sheet with excellent enamel adherence |
| 10/19/2000 | DE19915344A1 Wellenricht- und -härtemaschine Wellenricht- and -härtemaschine |
| 10/11/2000 | EP1043087A1 Shaft straightening and hardening machine |
| 09/27/2000 | EP1038602A1 Method and device for straightening profiles |
| 09/20/2000 | EP1036915A1 Method and device for controlling the deformation of an unrolled metal pipe |
| 09/20/2000 | CN2396906Y Turning wheel roller for hot-repairing steel rail |
| 09/14/2000 | DE19909929A1 Internal high pressure forming of hollow profile with integral web uses pressurized fluid to form profile and align webs |
| 09/06/2000 | EP1032857A1 Device and method for compressing |
| 08/23/2000 | EP1025921B1 Apparatus for straightening metallic articles |
| 08/16/2000 | CN1055515C Regeneration method for oil-field gun perforator barrel |
| 08/09/2000 | EP1025921A1 Apparatus for straightening metallic articles |
| 08/01/2000 | US6094963 Auger tube repair tool |
| 07/25/2000 | US6092556 Multi-wall tube |
| 07/20/2000 | DE19901848A1 Component correcting device, e.g. for shaft, with support punch and/or band to support and reinforce region in danger of cracks |
| 07/19/2000 | CN1054716C Load-balancing regulating method for speed-regulating drive device |
| 07/13/2000 | DE19611897C2 Verfahren zum Biegen, Richten und Justieren eines metallischen Werkstücks, insbesondere eines gehärteten Werkstücks Method of bending, straightening and aligning a metallic workpiece, in particular a hardened workpiece |
| 07/11/2000 | US6085564 Device for setting the adjustable rollers of a straightening unit |
| 07/05/2000 | EP1016472A1 Apparatus for straightening by rolling of metallic articles |
| 06/27/2000 | US6079244 Method and apparatus for reshaping a container body |
| 06/20/2000 | US6077369 Method of straightening wire rods of titanium and titanium alloy |
| 05/25/2000 | DE19828675C2 Verfahren und Vorrichtung zum Einstellen von mittels eines Verstellmechanismus translatorisch verstellbaren Richtrollen eines Richtapparates zum Richten von Draht Method and apparatus for adjusting translationally adjustable by means of an adjusting straightening rollers of a straightening apparatus for straightening wire |
| 05/17/2000 | EP1000676A2 Bending rolls, and pipe formed thereby |
| 05/17/2000 | CN1253050A Tube shaping equipment using tube bending roll, its shaping method and tube |
| 05/10/2000 | EP0998994A2 Multi-wall tube |
| 05/10/2000 | CN1252742A Method for forming sheet metal strip |
| 05/10/2000 | CN1252505A Multiple wall pipe |
| 04/28/2000 | CA2282143A1 Multi-wall tube |
| 04/20/2000 | DE19847233A1 Straightening machine for wires, tubes or profiles has two straightening bodies arranged one behind other in workpiece movement direction, the bodies being plates with holes penetrated by workpiece |
| 04/20/2000 | DE19841629C1 Drawing machine for aligning metal strip has clamp at each end of bed with sprung jaws having offset faces to clamp work |
| 03/30/2000 | WO2000016926A1 Method and apparatus for reshaping a container body |
| 03/21/2000 | US6038907 Straightening machine for rolled beams |
| 03/21/2000 | US6038904 Decamberer |
| 03/08/2000 | CN2367406Y H-shaped steel automatic assembling-correcting comprehensive tool |
| 02/29/2000 | US6029485 Roller levelling machine for levelling a rolled section |
| 02/16/2000 | EP0979701A1 Multiple bar straightening and cutting system in bar steel rolling line |
| 02/16/2000 | EP0979690A1 Straightening machine |
| 02/03/2000 | DE19828675A1 Verfahren und Vorrichtung zur Einstellung von verstellbaren Rollen eines Richtapparates Method and apparatus for setting the adjustable rollers of a straightening apparatus |
| 02/02/2000 | EP0976469A2 Process for linear stretching |
| 02/02/2000 | CN2361402Y Vehicle semiaxle straightening machine |
| 02/02/2000 | CN2361401Y Protective oil tank for round material straightening machine |
| 01/26/2000 | CN2360183Y Straightening appts of thermal state rail |
| 01/26/2000 | CN2360182Y Thermal straightening appts. of prestressed thermal insulating oil pipe |
| 01/19/2000 | CN2359024Y Segmental arc type steel pipe round regulating stand |
| 01/11/2000 | US6012320 Leaf spring straightening apparatus |
| 12/30/1999 | DE19828785A1 Verfahren zum Richten von Profilstahl Method for straightening profile steel |
| 12/30/1999 | DE19828784A1 Verfahren zum Richten von Profilstahl bei gleichzeitiger Minimierung der Eigenspannungen A method for straightening structural steel while minimizing the residual stresses |
| 12/29/1999 | EP0967030A2 Method and device for adjusting the rollers of a straightening device |
| 12/29/1999 | EP0967027A2 Method for straightening steel sections while at the same time minimising the internal stress |
| 12/29/1999 | EP0967026A2 Method for straightening steel sections |
| 12/22/1999 | EP0964757A1 Apparatus for introducing tubes or rod-shaped bodies, with a rotational/translational movement, into machines for processing them |
| 12/15/1999 | CN1047335C Roller type straightening machine |
| 12/02/1999 | DE19824394A1 Finishing method for windows in ball cage of homocinetic joint |
| 11/18/1999 | DE19811209A1 Verfahren und Vorrichtung zum Richten von Draht Method and apparatus for straightening wire |
| 11/18/1999 | DE19809967C1 Method of aligning section of motor vehicle bodywork |
| 11/17/1999 | EP0956168A1 A machine for straightening tubes and rod-shaped bodies in general |
| 11/16/1999 | CA2039705C Stretch shaping method and apparatus |
| 11/10/1999 | CN2347693Y Equipment for making lampstand taper pipe |
| 11/04/1999 | DE19819063A1 Richtmaschine für gewalzte Träger Straightening machine for rolled beams |
| 11/03/1999 | EP0953385A1 Straightening machine for rolled beams |
| 11/02/1999 | US5974849 Corner bead strip tool |