Patents for B21D 7 - Bending rods, profiles, or tubes (6,195)
02/2001
02/08/2001WO2001008831A1 An apparatus for rotating a horizontally disposed, cylindrical workpiece
02/07/2001CN2417950Y Building clamp-unit fromation device
02/07/2001CN2417949Y Column type stainless-steel cold-bent section mill
01/2001
01/25/2001WO2001005533A1 Leaf spring straightening apparatus
01/25/2001WO2001005532A1 Apparatus for bending a cutting blade
01/24/2001CN2415861Y Multi-section double-angle bending machine with improved structure
01/18/2001DE19933583A1 Bending process for esp. tubes uses two-part bending tool to clamp tube, move it between two bending axis and bent it about one axis
01/16/2001US6173599 Leaf spring straightening apparatus
01/16/2001US6173598 Modular multipurpose bending machine and its linear positioning system
01/09/2001US6170310 Transmission shaft of a movable arm of a pipe bender
01/03/2001EP1065015A1 Apparatus for bending elongate metallic objects such as tubes
01/02/2001US6167740 Method and apparatus for forming bends in a selected sequence
12/2000
12/27/2000CN1059849C Bending apparatus for obtaining spiral pipe
12/26/2000US6164113 Variable-speed pipe bending
12/26/2000US6164107 Radius crimping tool
12/14/2000WO2000074871A1 Method for producing pipe bends from straight, spirally welded pipes
12/14/2000DE19925521A1 Curved frame section for a vehicle door or bodywork component is a hollow profile with an insert at the zone where higher loading forces are to be expected
12/13/2000CN1276274A Technology for manufacturing elbow pipe with straight segment
11/2000
11/30/2000WO2000071973A1 Pipe-bending alignment device
11/30/2000WO2000071276A1 Methods for production of continuous stretches of circular cylindrical members, tools, use of a tool, a length of pipe and pipe parts
11/30/2000CA2375233A1 Methods for production of continuous stretches of circular cylindrical members, tools, use of a tool, a length of pipe and pipe parts
11/29/2000CN2408555Y Improved hydraulic bus bar bending machine
11/29/2000CN1058915C Apparatus and method for bending forging metal pipe as artist product
11/23/2000WO2000069581A1 Wire bending machine and bending method
11/22/2000CN2406744Y Portable hand pipe bender
11/21/2000CA2173076C Process of hydroforming tubular suspension and frame components for vehicles
11/15/2000EP1051268A1 Tube bending machine and magazine device thereof
11/15/2000CN1058427C Apparatus for and method of bending and heat exchanger
11/09/2000WO2000066289A1 Bending machine for pipes, sections or similar
11/09/2000CA2373056A1 Bending machine for pipes, sections or similar
10/2000
10/25/2000EP1046437A1 Bending machine with actively operated central capstan
10/25/2000CN1270857A Hot pipebending technology and mold for bending pipe
10/24/2000US6134932 Machine for bending or cambering a profile section, and bending head therefor
10/19/2000WO2000061313A1 Apparatus for folding a cutting blade
10/10/2000US6128944 Apparatus for bending malleable metal rods
10/10/2000US6128942 Bending machine
10/10/2000US6128941 Pipe bending machine
10/10/2000US6128940 Folding system for a cutting blade
10/10/2000US6128811 Apparatus and method for forming table aprons
09/2000
09/28/2000DE19912353A1 Bending device for angle sections in string form, in which second arm of section can be pressed by pressing roll to endface of one of pressure rolls
09/27/2000CN2398030Y Bent-tube forming quipment
09/21/2000DE19911283A1 Bending device for profile legs of torsion profiles of composite steering shafts has frame with profile clamping unit and driven slide with forming and support jaws
09/21/2000DE10011382A1 Bending method for e.g. hollow extruded profile of aluminum alloy with pressure application to flange in direction at right angles to profile direction
09/20/2000EP1035930A1 Forming tool heating device
09/20/2000CN2396907Y Improved three-dimensional pipe-bending plastic die
08/2000
08/22/2000US6106048 Sun visor for automobiles
08/17/2000WO2000047409A1 Laminated material and method of bending laminated material
08/17/2000WO2000047345A1 Method and pipe-bending device for manufacturing a pipe-offset for a connector
08/16/2000EP1027942A1 Tube for heat exchanger and method of manufacturing same
08/10/2000DE19911808A1 Turning bending device, e.g. for tubes and rods of non-circular cross section, upper tool of which includes base body, bending roller and two pivoted flood smoothers
08/01/2000US6097012 Induction-heating bender
08/01/2000CA2195180C A support arm assembly for pipe bending machines with automatic pipe positioning
07/2000
07/27/2000WO2000043143A1 Bending method for pipe material
07/25/2000US6092407 Ring bending machine
07/20/2000WO2000041825A1 A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape
07/20/2000CA2359341A1 A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape
07/05/2000CN2386031Y Dual-purpose machine used for pipe winding and horizontal jack
07/05/2000CN1054084C Slaved tube length controller for U-shape tube bender
07/04/2000US6082168 Apparatus for rotating a horizontally disposed, cylindrical workpiece
06/2000
06/28/2000CN1053849C Microprocessor controlled apparatus and method for forming metal building panels
06/27/2000US6079246 Universal machine for bending pipes or section bars to both fixed and variable curvatures
06/14/2000EP1008401A2 Method of manufacturing arm member
06/13/2000US6075231 Formed molding torpedo device and a method for making the same
05/2000
05/30/2000CA2007985C Movable shears upstream of a bending assembly and method to bend the trailing end of bars
05/25/2000DE19955200A1 Assembly for producing boomerang-shaped pipe sections especially for vehicle steering rods has bending tool fixed on pressing ram plate and fitting centrally between pipe sockets
05/09/2000US6058753 Can base reforming
05/09/2000CA2245996C Pipe bending machine
04/2000
04/26/2000CN2375393Y Aluminium alloy profile and its special connecting knee bend
04/25/2000US6053024 Method of forming a turbine shell of a torque converter by press working
04/20/2000WO2000021697A1 Method for bending pipes
04/20/2000DE19847401A1 Device for bending tubes between tension piece and bending plate, tension piece and plate rotating around bending axis, involves tube accommodated in tension piece groove and/or in peripheral groove of bending plate
04/06/2000WO2000018527A1 Pressure pad device for a bending machine
04/05/2000EP0990471A1 Bending machine
04/04/2000CA2175978C Universal ring bender
03/2000
03/30/2000WO2000016922A1 Grasping device for changing bending tools on a tube bending machine
03/30/2000WO2000016921A1 Apparatus and method for bending tubular or rod-shaped material
03/30/2000DE19919508A1 Gegenhaltevorrichtung für eine Biegemaschine Counter-holding device for a bending machine
03/30/2000CA2342731A1 Grasping device for changing bending tools on a tube bending machine
03/29/2000EP0988195A1 Method for producing flat bar windshield wipers provided for vehicles and having bent flat bars
03/29/2000CN2370977Y Hand pipe bender
03/28/2000CA2189099C Flexible shoe for a bending machine
03/22/2000CN2369789Y Tube bending machine
03/22/2000CN1050558C Technology for producing gauge bent tube
03/21/2000US6038903 Dual headed bending machine
03/21/2000US6038902 Intrados induction heating for tight radius rotary draw bend
03/15/2000CN2368624Y Three purpose apparatus for lifting, pipe bending and pressing
03/15/2000CN2368623Y Flexible anti-corrugating-plate device of pipe bender
03/14/2000US6035691 Adjustable rod bending device for a corrective spinal rod which is used in a surgical operation
03/09/2000WO2000012241A1 Method and device for forming a hollow body
03/09/2000WO2000012239A1 Device for bending frame sections
03/09/2000DE19839544A1 Bending device for frame profile for insulation glass panes has pressure application roller on rocker arm controlled by adjustable pneumatic cylinder
03/08/2000EP0983809A2 Method and device for bending a hollow profile for making a spacer frame for insulating glazing
03/08/2000CN2367407Y 液压折弯机 Hydraulic bending machine
03/02/2000WO2000010747A1 Jig for bending ship's frame sections
03/01/2000CN2366199Y Two purpose machine for pressing and bending tube
02/2000
02/29/2000US6029333 Method of making an inspection fixture for determining the accuracy of bent tubular parts
02/24/2000DE19825641C1 Verfahren und Vorrichtung zum Biegen eines Biegeprofils Method and apparatus for bending a bending profile
02/22/2000US6026668 Electrically-powered cutting and bending machine
02/17/2000DE19835190A1 Mechanical bending method for long tubes uses single bending unit only with single bending head and tube clamping device
02/16/2000CN2363804Y Chaining bending forming device
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