Patents
Patents for B21D 11 - Bending not restricted to forms of material mentioned in only one of groups , ,; Bending not provided for in groups; Twisting (4,159)
07/2001
07/04/2001CN2437426Y Gantry-type multipurpose hydraulic plate bending machine
07/03/2001US6253595 Automated pipe bending machine
07/03/2001US6253591 Method and apparatus for bending a metallic flanged member
06/2001
06/27/2001EP1110640A2 Apparatus for use in a pipe bending machine and method for bending pipe
06/21/2001DE19959798A1 Fabrication method for pipe clamp from flat material uses reciprocating piston with piston head having two parallel projections, and anvil with bending edge
06/20/2001EP1108919A1 Continuous manufacture of push type CVT belt bands
06/20/2001CN1299716A Method for machining bent and deformed part of metal plank and metal blank adopted thereof for plastic machining
06/13/2001EP1105230A1 Method for forming sheet metal strip
06/13/2001CN1299148A Color cathode rays tube
06/05/2001US6242715 Progressive hot twisting apparatus for use in a process for manufacturing a hollow turbomachine blade
05/2001
05/30/2001EP1102648A1 Device for forming cutting blade for prints
05/30/2001EP0996498B1 Continuous, chaotic convection mixer, heat exchanger and reactor
05/30/2001CN1296865A Method for mfg. ring metal sheet group
05/23/2001EP1102300A2 Color cathode-ray tube
05/23/2001EP1101546A2 Method of processing bent and deformed portion of metal material and metal material for plastic processing used in the method
05/23/2001CN2431060Y Angle positioner for separated oil hydraulic bending bed
05/23/2001CN1295899A Tool for repairing damaged screw
05/16/2001EP1100185A1 Method of manufacture of annular shaped lamination stack
05/16/2001EP0952896B1 Machine for bending tubes with small diameter
05/02/2001EP1095724A1 Tool for repairing damaged threads
04/2001
04/25/2001CN1292738A Automatic machine for formation of ship's curved hull-pieces
04/25/2001CN1292737A Formation method and device for curved plates
04/25/2001CN1064869C Method and device for rounding axle sleeve
04/11/2001EP0993345B1 Laser-assisted bending method
03/2001
03/29/2001WO2001021336A1 Automatic retainer bending machine for channel letters
03/28/2001EP1086760A2 Automated pipe bending machine
03/22/2001DE19942643A1 Fixing process for cable window raiser of vehicle door, involving use of fixing points in door in planes intersecting at obtuse angle
03/06/2001US6195867 Method of producing a spiral wound gasket and a device for producing the same
03/01/2001DE19946010A1 Assembly to shape extruded light metal alloy vehicle bodywork components has structured curvatures in the profile walls at corner zones for effective shaping without reassertion
02/2001
02/27/2001US6192731 Method for forming sheet metal strip
02/20/2001US6189359 Twisting machine for polygonal cross-section bars
02/15/2001CA2378346A1 Method for shaping an initial profile or a similar workpiece using an internal high pressure and profile therefor
02/13/2001US6185969 Machine for bending tubes with small diameter
02/08/2001DE19946011A1 Verfahren zum Umformen eines Ausgangsprofils od. dgl. Werkstücks mittels eines Innenhochdruckes sowie Profil dafür Method for forming an output profile od. Like. Workpiece by means of an internal high pressure and profile for
01/2001
01/30/2001US6178799 Forming press and method for shaping angle-section workpieces
01/25/2001WO2001005549A2 Contour forming of metals by laser peening
01/25/2001WO2001005533A1 Leaf spring straightening apparatus
01/17/2001EP0861132B1 Apparatus for forming metal
01/17/2001CN1060692C Stretch controlled forming mechanism and method for forming metal blanks
01/16/2001US6173599 Leaf spring straightening apparatus
01/02/2001US6167740 Method and apparatus for forming bends in a selected sequence
12/2000
12/26/2000US6164113 Variable-speed pipe bending
12/26/2000US6164107 Radius crimping tool
12/20/2000EP1060039A1 Automatic machine for the formation of ship's curved hull-pieces
12/20/2000EP1060038A1 Method and apparatus for creating a fold line on corrugated sheet transversely of the corrugations
12/20/2000EP1060037A1 Formation method and device for curved plates
11/2000
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
11/28/2000US6151947 Method and apparatus for the production of bent sheet metal pieces
11/22/2000CN2406745Y Transmission of sheet bending apparatus
11/22/2000CN1058647C Machine and method for forming arched roof vertical wall self supporting metal buildings and building constructions
11/16/2000DE19710046C2 Vorrichtung zum Biegen von Stahldraht zu Bügeln und Biegeformen The apparatus for bending steel wire to ironing and bending molds
11/14/2000US6145359 Device for forming cutting blade for prints
11/08/2000EP1049547A1 Device for step-by-step bending of metal strips or sheets
11/08/2000CN1272804A Continuous, chaotic convection mixer, heat exchanger and reactor
10/2000
10/24/2000US6134932 Machine for bending or cambering a profile section, and bending head therefor
10/19/2000WO2000061313A1 Apparatus for folding a cutting blade
10/18/2000EP1044738A1 A spacer device for a metal basket forming machine
10/10/2000US6128811 Apparatus and method for forming table aprons
10/09/2000CA2304873A1 A spacer device
10/04/2000EP1041702A2 Stator manufacturing apparatus for forming wires in twisted shape
10/03/2000US6125678 Bending machine to wind a strip or the like into a spiral
09/2000
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
09/14/2000WO2000053352A1 Method for forming a short-radius bend in flanged sheet metal member
09/13/2000EP1034052A1 Bending machine with variable bending tool
09/05/2000US6112702 Wave curb for milking parlor
08/2000
08/29/2000US6109089 Universal device and method for gripping workpieces of various configurations
08/24/2000WO2000048762A1 Process for deforming a piece of thin-walled metal tube
08/22/2000CA2198834C Production method and apparatus for double curve formed products
08/17/2000WO2000047345A1 Method and pipe-bending device for manufacturing a pipe-offset for a connector
08/10/2000DE19904227A1 Extruder for recycling thermoplastic foam particles includes a screw with finer pitch towards the exit made by twisting a tapered metal strip
07/2000
07/12/2000EP1017514A1 A metallic strip and method and apparatus for working a metallic strip
07/12/2000EP0693980B1 Flexible constraining apparatus and method for the stretch forming of elongated hollow metal sections
07/05/2000EP1015150A1 Method and apparatus for the production of bent sheet metal pieces
06/2000
06/28/2000CN1053849C Microprocessor controlled apparatus and method for forming metal building panels
06/21/2000DE19961638A1 Heat exchanger in form of even spiral is produced from smooth tube oval in cross-section, with winding axis running parallel to longer axis of cross-section of smooth tube and gaps between individual windings
06/21/2000CN1256978A Convenient junction method for metal pipe elbow and products thereof
06/14/2000CN1256734A Woven wire netting for protection against rock falls or for securing top layer of soil, and method and device for producing same
05/2000
05/30/2000CA2007985C Movable shears upstream of a bending assembly and method to bend the trailing end of bars
05/25/2000WO2000029142A1 Method for forming curved conduit sections with steel tubes provided with a mortar coat
05/24/2000EP1002592A2 Wire bending machine, in particular for bending steel reinforcing wires
05/23/2000US6065323 Method and apparatus for the production of bent sheet metal pieces
05/23/2000CA2158539C Pipe bending machine
05/16/2000US6064046 Clearance retaining system for a high frequency heating coil
05/16/2000US6063216 Working of a metallic strip
05/10/2000EP0998996A2 A method apparatus for use in forming articles from rods or bars of metal
05/10/2000CN1252742A Method for forming sheet metal strip
05/03/2000EP0996498A1 Continuous, chaotic convection mixer, heat exchanger and reactor
04/2000
04/30/2000CA2252127A1 Method and apparatus for forming reinforced auger flighting and a detachable reinforced auger flight
04/25/2000US6052898 Method of winding fluid heater coils
04/19/2000EP0993345A1 Laser-assisted bending method
04/12/2000EP0992300A2 Process for stretch forming age-hardened aluminium alloy sheets
04/12/2000EP0992297A1 Bending machine to wind a strip or the like into a spiral
04/05/2000EP0990472A1 Twisting machine for polygonal cross-section bars
04/05/2000EP0990471A1 Bending machine
04/04/2000CA2175978C Universal ring bender
04/01/2000CA2285735A1 Bending machine for winding strips into spirals
03/2000
03/15/2000CN2368625Y Apparatus for manufacturing coiled pipe
03/15/2000CN1247112A Dual-slot single metal tube
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