Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; Punching › B21D 7 - Bending rods, profiles, or tubes
Patents for B21D 7 - Bending rods, profiles, or tubes (6,195)
05/1999
05/11/1999US5901600 Rod bending device
05/11/1999US5901596 Tube bender loader and unloader
05/05/1999CN1215635A Protective mould means for bending small-bore thin wall metal floral tube
04/1999
04/28/1999EP0910486A1 Method and modular-multistation device for folding profiles
04/22/1999DE19746219A1 Method of bending tube or rod material
04/15/1999DE19744521A1 Apparatus for roll forming and multiaxial bending of metal sections
04/08/1999DE19840258A1 Forming method for turbine rotor housing for torque converter
03/1999
03/31/1999CN2312082Y Man power apparatus for bending tube
03/24/1999CN2311323Y Metal decorative shaped material twisting machine
03/23/1999US5884519 Automatic hydraulic pin up system for a pipe bending apparatus
03/23/1999US5884517 Bending device
03/17/1999CN2310635Y Pipe bender
03/11/1999WO1999011398A1 Method and apparatus for bending a workpiece
03/10/1999CN1210043A Universal machine for bending pipes or section bars to both fixed and variable curvatures
03/03/1999EP0899033A2 Universal machine for bending pipes or section bars to both fixed and variable curvatures
03/03/1999EP0899032A1 Positioning unit for the clamping head and for the contrast carriage, particularly for a pipe bending machines
03/02/1999US5875665 Apparatus and method for bending a workpiece
02/1999
02/23/1999US5873278 Multi-row pipe bending apparatus
02/16/1999US5870919 Folding system for a cutting blade
02/10/1999EP0853511A4 Low force auto-open tooling for tube bending machine
02/09/1999CA2175977C Group for clamping and dragging a pipe or rod for pipe benders with or without an inner mandrel and rod benders, and machines for clamping mechanical parts in general
02/03/1999EP0894553A2 Apparatus for bending a hollow profile with a clamp
01/1999
01/27/1999EP0892686A1 Machine for bending or cambering a profile section, and bending head therefor
01/26/1999US5862698 Bending device
01/26/1999US5862697 Tube bending apparatus, and methods of constructing and utilizing same
01/21/1999WO1999002283A1 Tube for heat exchanger and method of manufacturing same
01/20/1999CN2304482Y Two fold once forming pipe bender
01/19/1999US5860307 Method and apparatus for forming a bent pipe
01/19/1999CA2136156C Tube bending apparatus and method
01/13/1999CN2303694Y Simple bundling device for multi-branch small-diameter thin-wall tube
12/1998
12/29/1998US5852945 Apparatus for forming rod-like components
12/23/1998EP0885077A1 Pressure die assist boost system for tube bending machine
12/23/1998CN1202399A Modular multipurpose bending machine and its linear positioning system
12/16/1998CN2300462Y Portable manual bending machine
12/15/1998US5848546 Method of gripping tubular members during forming operations and associated apparatus
12/10/1998DE19721654A1 Light-metal profile bending method, for space frames for motor vehicles
12/09/1998EP0882528A1 Bending arrangement for aluminium profile
12/09/1998CN2299674Y Frofile bending machine
12/02/1998EP0881010A1 Bending apparatus
11/1998
11/30/1998CA2239244A1 Bending apparatus
11/25/1998EP0879655A2 Modular multipurpose bending machine and its linear positioning system
11/18/1998EP0878250A2 Bending area for a thin walled metal tube bent without mandrel and apparatus for bending such an area
11/17/1998US5836194 Portable tube-bending machine
11/17/1998US5836193 Apparatus for forming elongated metal articles and related method
11/17/1998US5836188 Method and apparatus for bending an elongated member to a target angle
11/12/1998DE19718937A1 Portable bending tool for heating pipes etc
11/11/1998CN2296780Y Device for bending pipe
11/05/1998WO1998048957A1 Method and modular-multistation device for folding profiles
11/04/1998EP0875309A1 Perfected bending system for bending machines
11/04/1998EP0875308A2 Automatic reinforcing rod and/or wire head and tail bending unit for bending machines and/or arc-welded steelmesh forming machines
11/03/1998US5829568 Safety clamp
10/1998
10/29/1998WO1998047639A1 Method and device for three-dimensional bending of hollow metal sections
10/29/1998DE19717472A1 Verfahren und Vorrichtung zum Profilbiegen mit modularen Biegestationen Method and apparatus for bending profiles with modular bending stations
10/29/1998DE19717232A1 Verfahren und Vorrichtung zum dreidimensionalen Biegen von Metall-Hohlprofilen Method and apparatus for three-dimensional bending of metal hollow sections
10/21/1998EP0872293A2 Machine for bending of pipes and bars
10/21/1998EP0872292A2 Machine for bending of elongate members such as tubes, bars or profiles
10/13/1998US5819581 Mechanism to prevent rotation
10/13/1998US5819580 Bending tool
10/13/1998US5819574 Hydraulic device for bending work and a bending device with the hydraulic device mounted thereon
10/13/1998US5819571 Apparatus for bending surgical instruments
10/07/1998CN2293400Y Homopeural driving simple tube-conveyor
10/07/1998CN2293399Y Hydraulic lever type bending machine for workpiece
10/06/1998US5816095 For use with a human hand
10/06/1998CA2007984C Drawing unit downstream of a bending assembly and method to bend the trailing end of bars
10/01/1998DE19712685A1 Extrusion moulding multiple bending method
09/1998
09/30/1998CN1194184A Measuring method for rolling bend part curvature and roller type bending machine
09/22/1998US5809818 High-pressure piping metal tube and process for manufacturing the same
09/09/1998EP0657231B1 Band plate bending apparatus
08/1998
08/25/1998US5797289 Bending system for bending tube
08/19/1998EP0858372A1 Flexible shoe for a bending machine
08/18/1998US5794481 Device for bending or curving hollow-section strips
08/04/1998US5787750 Folding system for a cutting blade
07/1998
07/28/1998US5784913 Pressure die assist boost system for tube bending machine
07/23/1998WO1998031484A1 Machine for bending tubes with small diameter
07/23/1998DE19751504A1 Hydraulic control for bending machine
07/23/1998CA2275946A1 Machine for bending tubes with small diameter
07/22/1998EP0853511A1 Low force auto-open tooling for tube bending machine
07/22/1998EP0853510A1 Programmable pressure controlled mandrel extractor for tube bending machine
07/21/1998US5782124 High force rebar bending machine
07/15/1998EP0852522A1 Quick change tooling method and apparatus
07/14/1998US5778719 Method of stretch-forming a channel material
07/07/1998US5775157 Swinging self-positioning support for pipe bending machines
07/01/1998EP0850707A1 Bending method for a double shaping machine and the relative double shaping machine with movable winged elements
06/1998
06/30/1998US5771735 Support arm assembly for pipe bending machines with automatic pipe positioning
06/30/1998US5771730 Equipment for forming metal profiles
06/23/1998US5768792 Method and apparatus for measuring and tube fitting
06/23/1998US5768790 Angle indicator for pipe benders
06/23/1998CA2015886C Temperature control device provided in a plastic processing machine and process of manufacturing a shell section of a heat transfer shell for use in such device
06/16/1998US5765426 Pipe bending apparatus
06/09/1998US5761950 Tube bender
06/04/1998DE19648169A1 Bending machine with two bending functions
06/03/1998EP0844917A1 Portable rebar bending device and method
05/1998
05/27/1998EP0844033A2 Bending machine with at least two bending functions
05/19/1998US5752705 Piston rings
05/12/1998US5749255 Bending device for hollow double-structured pipe
05/06/1998EP0839592A1 Apparatus for forming tube
05/05/1998CA2119344C Tube bending apparatus and method
04/1998
04/30/1998WO1998017414A2 Method and apparatus for forming bends in a selected sequence
04/30/1998WO1998017413A2 Method and apparatus for forming bends in a selected sequence
04/29/1998CN1179998A Metal section forming equipment
1 ... 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 ... 62