Patents for B21D 7 - Bending rods, profiles, or tubes (6,195)
04/1987
04/07/1987US4655069 Automatic machine for curving thin and rectilinear elements, such as metal wires
03/1987
03/31/1987US4653301 Bending machine for pipes, sections and similar
03/26/1987WO1987001625A1 Pipe bending machine
03/25/1987EP0215006A1 Device for bending conical wires.
03/04/1987EP0053604B1 Method of producing multiple coil, multiple tube heat exchanger
03/04/1987CN86205448U Elbow forming derice of little curvature u shape tube
03/04/1987CN85106156A Follow bar with cam tracks for rocker type conduit bender
03/03/1987US4646553 Press for cultivator shank
02/1987
02/26/1987DE3620151A1 Method and robotic device for bending bar-shaped stock or workpieces
02/12/1987WO1987000775A1 Pipe bending machine
02/12/1987WO1987000774A1 Pipe bending machine
01/1987
01/28/1987EP0209876A2 Universal bending machine and respective method for bending
01/27/1987US4638665 Tube bender
01/15/1987WO1987000097A1 Pipe bending machine
01/15/1987WO1987000096A1 Pipe bending machine
01/06/1987US4633698 Method for preforming a substantially flat blank of an open clamp
01/02/1987DE3619643A1 Method and tube-bending machine for the application of a marking to a tube
01/02/1987DE3523025A1 Method and apparatus for bending elongated metallic workpieces
12/1986
12/23/1986US4630459 Automatic coaxial cable bending apparatus
12/09/1986US4627263 Method of and apparatus for making spacers for use in multiple-pane windows or the like
12/09/1986US4627254 Cutting device for a multi-dimensional bending apparatus
12/02/1986US4625531 Bending machine
11/1986
11/25/1986US4624121 Method of, and apparatus for producing multi-dimensionally bent elongate articles
11/18/1986US4622837 Tube bender with spirit level indicator
11/12/1986EP0200979A2 Tube bending machine
11/04/1986CA1213421A1 Method of manufacturing metallic bent pipe
10/1986
10/29/1986EP0199246A2 Method for plastically deforming elongated hollow members
10/29/1986EP0198984A2 Bending apparatus
10/08/1986EP0196653A1 Method of bending a thick-walled metal tube, and device for carrying out the method
10/07/1986US4615199 Strip bending
09/1986
09/16/1986US4611358 Device for tube cutting, reaming and bending
09/09/1986CA1211032A1 Tube bending machine
09/02/1986US4608849 Bending apparatus
08/1986
08/28/1986WO1986004837A1 Device for bending conical wires
08/12/1986US4604885 Machine for the bending of stranded material
07/1986
07/15/1986CA1207647A1 Multi position article bender
07/08/1986US4598565 Seal strip bending device for steam turbines
06/1986
06/24/1986US4596128 Method and apparatus for bending elongate workpieces, particularly pipes
06/24/1986CA1206402A1 Tool support for machines
06/17/1986US4594907 Reciprocating machine component
06/17/1986US4594875 Bending machine
06/17/1986CA1206082A1 Pipe bending machine
06/04/1986EP0183531A2 Portable bending apparatus
05/1986
05/27/1986US4590779 Program-controlled frame bending method and apparatus
05/13/1986US4587832 Pipe bending tool
05/13/1986US4587824 Conductor bundle edge-bending tool for a dynamoelectric generator
04/1986
04/15/1986US4581917 Forming disc exchanging method and apparatus
04/09/1986EP0177027A2 Apparatus for stretch-bending elongate material
04/08/1986US4580433 Method of bending shaped metal sheet and apparatus for carrying out the method
04/02/1986EP0175743A1 Method of manufacturing hairpin configured tubes.
04/01/1986US4578977 Apparatus for performing roll bending on shape metal
03/1986
03/19/1986EP0174501A2 Method for bending section bars of metal, in particular of aluminium, with non supported webs, lips or the like
03/04/1986US4573339 Manual tool for shaping horseshoes
02/1986
02/18/1986US4570474 Apparatus for bending metal plate in widthwise direction
02/11/1986US4569219 Cable bending device
02/04/1986US4567745 Tube bending machine
01/1986
01/29/1986EP0169564A2 Method and apparatus for bending elongate work pieces, in particular tubes
01/15/1986EP0168331A2 Machine for bending of tubes, bars or profiles
01/15/1986EP0168257A1 Process of manufacturing brake shoes
01/14/1986US4563891 Pipe bending machine
01/07/1986US4562754 Methods for constructing cutting tools
01/03/1986WO1986000102A1 Seal-holding profile and process to manufacture it
12/1985
12/31/1985US4561279 Rod bending and cutting apparatus
12/17/1985US4558583 Mobile pipe bending carriage
12/11/1985EP0163769A2 A method and a machine for producing a metallic ring with specially contoured surfaces from a ring-shaped blank of selected cross-section
11/1985
11/26/1985US4554816 Method for the manufacture of a pipe bend
11/12/1985US4552006 Bending apparatus
10/1985
10/15/1985US4546632 Portable conduit bending apparatus
10/09/1985EP0157537A2 The manufacture of piston rings
10/08/1985CA1194683A1 Device having power means for re-arching or de- arching a leaf spring
10/02/1985EP0156068A2 Bending apparatus
09/1985
09/26/1985WO1985004242A1 Hairpin configured tubes and method of manufacture
09/17/1985US4541267 Tool for straightening a bent body of a sickle bar
09/04/1985EP0153323A1 Pipe deforming method and apparatus
08/1985
08/27/1985US4537053 Pipe bending machine
08/27/1985US4537052 Follow bar with cam tracks for rocker type conduit bender
08/21/1985EP0152224A2 Apparatus for producing articles bent in up to three dimensions
08/14/1985EP0151534A2 Cutting device for a multi-dimensional bending apparatus
08/06/1985US4532787 Portable electromechanically-controlled pipe-bending apparatus
07/1985
07/23/1985US4530226 Sweep-forming apparatus
07/17/1985EP0148514A2 Method and apparatus for cold drawing and imparting curvature to metal tubes
07/16/1985US4528830 Method for changing widthwise distribution of thickness of metal strip
06/1985
06/18/1985US4523766 Chuck assembly
06/11/1985US4522055 Bending tool
05/1985
05/29/1985EP0142532A1 Forming tool
05/21/1985CA1187389A1 U-bolt bender
05/15/1985EP0141745A1 Automatic machine for bending thin and rectilinear elements, especially metal wire, into a spatial configuration
05/09/1985WO1985001898A1 Improved automatic machine to camber with a spatial configuration thin and rectilinear elements, particularly metal wires
05/02/1985EP0139415A2 Bending fixtures for laying pipes
04/1985
04/17/1985EP0137486A2 Apparatus for bending metal plate in widthwise direction
03/1985
03/26/1985US4506535 Device having power means for re-arching or de-arching a leaf spring
03/12/1985US4503695 Apparatus for bending laying tubes
02/1985
02/19/1985US4499643 Process for manufacturing a piston ring
02/05/1985US4497190 Apparatus for bending a rolling mill laying pipe
01/1985
01/29/1985US4495788 Multiple curvature bender
01/16/1985EP0131429A2 Draw-bending apparatus and method
01/03/1985WO1985000023A1 Pipe deforming method and apparatus
01/02/1985CA1180259A Tube bender construction
12/1984
12/27/1984CA1179931A Bending
12/25/1984US4489586 Device for measuring the fold angle in a sheet metal bending press
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