Patents for B21D 7 - Bending rods, profiles, or tubes (6,195)
02/2002
02/13/2002CN2476361Y Multiple spiral coil pipe bending machine
02/12/2002US6345525 Tube bending machine, magazine device thereof, and method for loading
02/06/2002CN2475484Y Hand-operating powerful bending tool
01/2002
01/30/2002CN1333095A Long element bending method and bender thereof
01/24/2002WO2002005982A1 Section bending machine
01/24/2002CA2384595A1 Section bending machine
01/23/2002EP1174199A1 Device for curving elongated corner irons
01/23/2002CN1332326A Multipurpose circular involute tube
01/15/2002CA2237244C Safety clamp
01/09/2002CN2470022Y Multipurpose hydraulic pipe bender
01/09/2002CN2470021Y Pipe bender having double sets of knock-out mechanism
01/09/2002CN2470020Y Multi-space hydraulic pipe bending machine
01/09/2002CN1077464C Method to cold-bend resin-coated ribbed steel pipes and steel pipes bent by the method
01/03/2002DE10119030A1 Bending device for bending tubes in two and/or three dimensions has bending rollers in plane perpendicular to tube input axis
01/02/2002EP1166911A2 Machine for bending tubes and the like
12/2001
12/20/2001DE10028340A1 Pipe and tube bender of frame and sled acts on sled movement by dampers acting on frame and sled endstops to cushion sled into and through progressive bend points.
12/12/2001CN1325773A Automatic steel bar bender
12/12/2001CN1325772A Device for bending cutting knife
12/06/2001WO2001091936A1 Automated bar bender
12/06/2001DE10023637A1 Dismantlable bending tool has tool elements locked and unlocked by relative rotation essentially in bending plane; locking arrangement effects locking function by friction locking
12/05/2001EP1160078A1 Laminated material and method of bending laminated material
12/05/2001EP1159094A1 Method and pipe-bending device for manufacturing a pipe-offset for a connector
11/2001
11/29/2001US20010045115 Folding system for a cutting blade
11/28/2001EP1157760A2 Apparatus for bending cutting blade
11/22/2001WO2001036121A3 Method for forming an initial profile or a tool of the kind and a profile therefor
11/21/2001EP1154869A1 Method and apparatus for bending a profiled metal element while limiting deformation of its cross-sectional shape
11/15/2001DE10021028A1 Bending machine for long profile workpieces or pipes, has bending device, workpiece clamping device, and supporting devices for workpiece and bending pin before or after clamp
11/08/2001WO2001083130A1 Bending device for thin-walled metal pipes
11/08/2001DE10020725A1 Biegevorrichtung für dünnwandige Metallrohre Bending device for thin-walled metal tubes
11/07/2001CN1074325C Supporting-seat-arm assembly for tube-automatic-positioning type tube bending machine
10/2001
10/31/2001CN1073894C Group for clamping and dragging pipe or rod for pipe benders with or without inner mandrel and rod
10/30/2001US6308551 Apparatus for bending cutting blade
10/25/2001US20010032491 Bender stand
10/24/2001CN2455402Y Hydraulic shaped bender
10/24/2001CN2455401Y Hollow glass aluminium bender
10/18/2001US20010029764 Angled ductwork fittings, flexible fitting machine and methods of manufacture
10/17/2001EP0697925B1 Microprocessor controlled apparatus and method for forming metal building panels
10/16/2001CA2142140C Apparatus for bending a heat-exchanger tube
10/11/2001WO2001074508A1 Method and apparatus for curving longitudinal sheets having two opposite flanges
10/09/2001US6298704 Portable bending apparatus having transaxial workpiece loading
10/04/2001EP1138403A1 Method and apparatus for curving longitudinal sheets having two opposite flanges
10/03/2001CN1072041C Protective mould means for bending small-bore thin wall metal floral tube
09/2001
09/27/2001WO2001070425A1 Tube bending machine
09/26/2001EP1136147A2 Variable-speed pipe bending
09/26/2001EP1135222A1 Pressure pad device for a bending machine
09/12/2001CN2447079Y Electric pipe bender
09/11/2001US6287399 Metallic article resistant to buckling
09/07/2001WO2001064366A1 Steel pipe bending apparatus and method
09/06/2001US20010018841 Apparatus for bending pipes
09/06/2001DE10010110A1 Einrichtung zum Biegen von Rohrleitungen Means for bending pipes
09/05/2001EP1129797A2 Apparatus for bending tubes
09/04/2001US6282937 Corner bead re-shaping tool
08/2001
08/30/2001WO2001062411A1 Wire bending device
08/30/2001WO2001062408A1 Bending device for bending plastically deformable strip material
08/30/2001DE10008714A1 Biegevorrichtung zum Biegen von plastisch verformbarem Bandmaterial Bender for bending plastically deformable strip material
08/22/2001CN1069851C Method and apparatus for bending pipe
08/07/2001CA2333347A1 Bender stand
07/2001
07/25/2001CN2439914Y Tube-bending machine
07/19/2001WO2001051228A2 A sweep forming assembly, a bumper and a method of manufacture thereof
07/18/2001EP1115517A1 Grasping device for changing bending tools on a tube bending machine
07/18/2001EP1115516A1 Apparatus and method for bending tubular or rod-shaped material
07/17/2001US6260395 Vertically oriented apparatus for bending tubing, and method of using same
07/11/2001CN2438523Y T-steel bending round machine
07/05/2001WO2000074871A8 Method for producing pipe bends from straight, spirally welded pipes
07/03/2001US6253595 Automated pipe bending machine
07/03/2001US6253591 Method and apparatus for bending a metallic flanged member
06/2001
06/28/2001DE19960819A1 Plastic shaping of thin workpiece to form curve etc. using additional control drives to impose rigid body movement on workpiece
06/28/2001DE10050919A1 Verfahren zum Biegen von Metallrohren von kleinem Durchmesser und Vorrichtung hierfür Method of bending metal pipes of small diameter and apparatus therefor
06/27/2001EP1110016A1 Gasket for heat exchanger and method and apparatus for manufacturing same
06/26/2001US6250124 Steel pipe bending apparatus and method
06/20/2001EP0885077A4 Pressure die assist boost system for tube bending machine
06/20/2001EP0853510A4 Programmable pressure controlled mandrel extractor for tube bending machine
06/13/2001DE19956796A1 Biegevorrichtung für das 2- und 3-dimensionale Profilbiegen Bending device for the 2- and 3-dimensional profile bending
06/05/2001US6241256 Gasket for heat exchanger and method and apparatus for manufacturing same
05/2001
05/31/2001WO2001038018A1 Bending device for 2 and 3-dimensional profile bending
05/31/2001DE19956046A1 Manufacturing process for spacer frame insulated window panes uses hollow profile subjected to bending process simultaneous with pressure roller being moved along outer side of profile being formed
05/31/2001DE19955506A1 Internal high pressure forming method for hollow profiled blank uses bending process to form central profile line, and internal forming process to give shape
05/29/2001US6237380 Bending device having a control mechanism for controlling joint-type robots of the bending device
05/25/2001WO2001036121A2 Method for forming an initial profile or a tool of the kind and a profile therefor
05/25/2001CA2391444A1 Method for forming an initial profile or a tool of the kind and a profile therefor
05/23/2001DE19955694A1 Verfahren zum Umformen eines Ausgangsprofils o. dgl. Werkstückes sowie Profil dafür Method for forming an output profile o. The like. Workpiece as well as profile for
05/22/2001US6233998 Easy mode pipe-reducing device
05/16/2001EP0952896B1 Machine for bending tubes with small diameter
05/16/2001CN2430228Y Cooling device for longitudenal cold bending section mill
05/09/2001EP1097755A1 Bending method for pipe material
05/02/2001EP1095716A1 Portable electrical tube bending device
05/02/2001CN2428237Y Combined rolls for forming cold bent sections
04/2001
04/24/2001US6220069 Method and apparatus for bending tubing
04/03/2001US6209371 Pipe bender angle indicator
03/2001
03/28/2001EP1087278A2 Method of generating control data for bending and torsion apparatuses
03/28/2001EP1086760A2 Automated pipe bending machine
03/28/2001CN1063685C Pipe-bending apparatus
03/21/2001CN2423975Y Arranged copper aluminium bender
02/2001
02/27/2001US6192728 Pipe bending machine accurately controlling bent angles of pipes
02/21/2001CN2420080Y Fixiing core block for rolling cold bending section
02/20/2001US6189354 Method and modular-multistation device for folding profiles
02/20/2001US6189353 Bending device and bending method
02/13/2001US6185978 Method for manufacturing of curved and quenched profiled elements and a die tool for carrying out the method
02/13/2001US6185969 Machine for bending tubes with small diameter
02/13/2001US6185968 Bending device and bending method
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