| 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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| 09/04/1997 | DE19606875C1 Alignment device for handling wire, multi-wire or tubular material |
| 08/27/1997 | CN1157759A Cross feeding type metal bar method and device straightening |
| 08/26/1997 | US5660069 Hands-free duct assembly tool |
| 08/26/1997 | US5660068 Roll type processing facility and roll width adjusting device therefor |
| 08/05/1997 | US5653139 Portable rebar bending device and method |
| 07/31/1997 | WO1997027013A2 Process and device for producing pipes as per the uoe-process |
| 07/24/1997 | DE19602920A1 Verfahren und Vorrichtung zur Herstellung von Rohren nach dem UOE-Verfahren Method and apparatus for the manufacture of pipes according to the UOE method |
| 07/08/1997 | US5644939 Straightening machine for rolled beams |
| 06/11/1997 | EP0777539A1 Flame-straightening process and device for metal parts |
| 06/03/1997 | US5634361 Apparatus and method for straightening damaged or bent wheels |
| 05/27/1997 | US5632311 Fence repairing tool for wire fences |
| 04/23/1997 | EP0769335A1 Apparatus for reforming rollers for shaping rolled steel |
| 04/22/1997 | US5622075 Bending machine |
| 04/16/1997 | CN2252234Y Sucker rod straightening cleaning plant |
| 04/16/1997 | CN2252062Y Compound roller frame flattener |
| 04/10/1997 | WO1997012701A1 Method of correcting u-shaped steel sheet pile |
| 04/08/1997 | US5617752 Methods of and apparatus for straightening rods |
| 03/26/1997 | EP0671983B1 Process and linear shaping machine for truing rod-like material |
| 02/26/1997 | CN2248103Y Frame type straightening machine for metal pipe and rod material |
| 02/26/1997 | CN2248102Y Straightening device for bent nail |
| 02/05/1997 | CN1141825A Straightening mechanism of concrete-bar straightening and cutting machine |
| 01/29/1997 | CN1141604A Method for mfg. cold rolled steel sheet with excellent enamel adherence |
| 01/15/1997 | EP0753360A1 Apparatus for straightening |
| 01/09/1997 | WO1997000740A1 Flame-straightening process and device for metal parts |
| 01/08/1997 | CN1139601A Coiling products for chain and making method |
| 01/02/1997 | DE19522642A1 Verfahren und Vorrichtung zum Flammrichten metallischer Bauteile Method and apparatus for flame straightening metal components |
| 01/01/1997 | CN1139177A Regeneration technology for oil-field gun perforator barrel |
| 12/24/1996 | US5586709 Device to compensate the elongation of at least two wire rods or round bars, which is associated with a drawing assembly |
| 12/18/1996 | CN1137953A Method for flattening partially depressed metal body of automobile |
| 12/04/1996 | EP0745007A1 Method for manufacturing a cold rolled steel sheet with excellent enamel adherence |
| 11/28/1996 | DE19519489A1 Straightening mechanism for partly bent street lamp masts |
| 11/21/1996 | WO1996036446A1 Portable rebar bending device and method |
| 11/21/1996 | CA2220902A1 Portable rebar bending device and method |
| 11/20/1996 | CN2240404Y Double-bar screw steel straightening machine |
| 10/15/1996 | US5564304 Tool for rounding the end of a tube |
| 10/15/1996 | US5564299 Wire straightening apparatus with long-life dies |
| 10/10/1996 | DE19613087A1 Machining installation for concrete reinforcement steel wire pulled from coil |
| 07/24/1996 | CN1127171A Correcting machine for rolling supporting beam, particularly supper beam |
| 07/17/1996 | EP0721810A1 Straightening machine for rolled beams, in particular hyper-beams |
| 06/27/1996 | WO1996019305A1 Method for manufacturing a cold rolled steel sheet with excellent enamel adherence |
| 06/27/1996 | DE4446268A1 Tooling arrangement for roller type straightening appts. |
| 06/19/1996 | CN2229312Y Rolling depression finisher made of steel material |
| 06/18/1996 | US5526670 Process and device for shaping the end of a tube with an oblong cross-section to a circular cross-section |
| 06/13/1996 | DE19503850C1 Non-rotating straightening unit for bending machines with an integrated measuring system |
| 05/28/1996 | US5520039 Straightening apparatus for wire, cable and tubular material |
| 04/18/1996 | DE4436530A1 Method of straightening rod shaped metal objects esp. shafts |
| 01/24/1996 | EP0693335A1 Device to compensate the elongation of at least two wire rods or round bars, which is associated with a drawing assembly |
| 01/24/1996 | EP0693329A2 Roll type processing facility and roll width adjusting device therefor |
| 01/23/1996 | US5485739 Vibrating pipe straightener |
| 01/21/1996 | CA2154132A1 Device to compensate the elongation of at least two wire rods or round bars, which is associated with a drawing assembly |
| 01/03/1996 | EP0689884A1 Roller straightening machine for the straightening of profiles |
| 12/26/1995 | US5477894 Device for correcting lateral bending of IC leads |
| 12/20/1995 | CN2215361Y Multi-function steel pipe straightener |
| 12/20/1995 | CN2215360Y Cold rolling flat steel sizing machine |
| 12/14/1995 | DE19519575A1 Wire straightening appts. |
| 12/06/1995 | CN2214241Y Profile and pipe straightening equipment with eccentric roller group |
| 11/22/1995 | CN2213030Y Double reinforcing steel vertical roll flattening device |
| 11/21/1995 | US5467629 Straightening apparatus for tubular material, wire and cable |
| 11/15/1995 | CN2212462Y Correcting Shaft for clutch |
| 10/25/1995 | CN2210729Y Hyperbolic padding-die spin tube-bracing machine |
| 10/05/1995 | WO1995026238A1 A device for straightening of a profile |
| 09/27/1995 | EP0673693A1 Method and device for straightening and measuring a steel profile, in particular a rail |
| 09/26/1995 | US5452599 Method and apparatus for producing vehicle wheel rims |
| 09/21/1995 | DE4408907A1 Device for straightening hot rolled profiles or bars |
| 09/20/1995 | EP0672546A1 Strengthening support for vehicle tyres |
| 09/20/1995 | EP0671983A1 Process and linear shaping machine for truing rod-like material. |
| 08/22/1995 | US5443785 Method of treating seamless belt substrates and carriers therefor |
| 07/04/1995 | US5428979 Apparatus for straightening coupling shafts |
| 06/21/1995 | EP0658384A2 Method and apparatus for producing vehicule wheel rims |
| 06/21/1995 | CN1103820A Straightening machine for special steel tube |
| 06/15/1995 | CA2137852A1 Method and apparatus for producing vehicle wheel rims |
| 05/23/1995 | CA1335637C Process and means for making metal inking rolls, particularly for flexographic printing, with highly hardened superficially engraved layer, and rolls obtained with such process and means |
| 05/03/1995 | EP0650779A2 A process for shaping the end of a tube with an oblong cross-section to a circular cross-section |
| 04/05/1995 | CN1100975A Machine for aligning rolled beam particularly beam with H cross section |
| 03/28/1995 | US5400631 Method to obtain on the cold state single finished section from cold single multi-section elements, and relative machine |
| 03/22/1995 | CN1027967C High Precision pipe straightener |
| 03/16/1995 | DE4330649A1 Profiled-roller straightening machine with overhung straightening rollers |
| 03/15/1995 | CN2191720Y Straightening device for pipe end mouth circular degree |
| 03/08/1995 | EP0641265A1 Straightening machine |
| 03/08/1995 | CN2191050Y Strengening machine for hyperbola incline roller steering wheel hub |
| 02/08/1995 | CN2189017Y Machine for leveling steel sheet |
| 02/07/1995 | CA2028413C System and method of detecting roll position in a rotary straightener |
| 02/01/1995 | EP0636433A1 Straightening machine for rod- or striplike material |
| 01/26/1995 | DE4324416A1 Straightening machine for rolled girders, particularly hyper beams |
| 01/18/1995 | EP0634235A1 Straightening machine for rolled profiles, especially H-profiles |
| 12/21/1994 | CN2185645Y 校直机 Straightening Machine |
| 11/24/1994 | DE4317091A1 Method of increasing the strength of a crankshaft |
| 10/19/1994 | EP0527205B1 Roller straightener particularly for reinforcing |
| 10/12/1994 | EP0619155A1 Straightening apparatus for wire, multiple wire or tubular products |
| 10/12/1994 | EP0619154A1 Straightening apparatus for wire, multiple wire or tubular products |
| 10/12/1994 | CN1093304A Tech. for aligning steel beam and improving the bearing capacity of the beam |
| 10/11/1994 | US5353617 Method of sizing metal sleeves using a magnetic field |
| 10/06/1994 | DE4318425C1 Apparatus for the upright straightening of a spring leaf |
| 09/21/1994 | EP0615475A1 Wire straightening method |
| 09/13/1994 | US5345804 Roller straightening device for steel bars for concrete |
| 08/02/1994 | US5333480 Method for straightening out of true work pieces, especially crankshafts |
| 07/26/1994 | CA2020728C Adjustable guide for rotating cylindrical member |
| 07/13/1994 | EP0439588B1 Stretch shaping method and apparatus |
| 07/12/1994 | US5327769 Apparatus for straightening rail car handhold safety appliances |
| 07/12/1994 | US5327760 Roller leveller |