Patents for B21D 7 - Bending rods, profiles, or tubes (6,195)
02/2000
02/15/2000US6023959 Tool for bending a ceiling support rod
02/15/2000US6023956 Device for bending a hollow section with a hold down clamp
02/09/2000CN2362608Y Angle reset device for pipe-binding machine
02/09/2000CN2362607Y Angle regulator pipe-bending machine
02/03/2000WO2000005521A1 Gasket for heat exchanger and method and apparatus for manufacturing same
02/03/2000CA2338368A1 Gasket for heat exchanger and method and apparatus for manufacturing same
02/02/2000CN2361404Y Drive for movable arm shaft of pipe bender
02/02/2000CN2361403Y Aluminum pipe forming die carrier regulating device
01/2000
01/26/2000CN2360184Y Pipe bender screw hand wheel with degree scale
01/18/2000US6014884 Method of bending tubing
01/13/2000DE19830962A1 Bending device for rod-shaped workpieces
01/11/2000US6012320 Leaf spring straightening apparatus
01/05/2000DE19839444C1 Bending metal-coated plastic hollow profile containing drying agent, forming double-glazing spacer frame
01/05/2000CN2356773Y Pipe bending machine
01/04/2000US6009737 Tube bender
12/1999
12/28/1999US6006581 Rod bending system
12/21/1999US6003358 Method and apparatus for forming bends in a selected sequence
12/15/1999EP0963799A1 Method and apparatus for bending a profile
12/15/1999EP0963798A1 Pipe-bending machine suitable for operating on the seabed
12/15/1999EP0852522A4 Quick change tooling method and apparatus
12/08/1999EP0892686B1 Machine for bending or cambering a profile section, and bending head therefor
12/08/1999CN2352279Y Apparatus for cutting and bending capillary
12/01/1999EP0960663A1 Bending device with hydraulic drive
12/01/1999CN2351226Y Continuous knee-bending pipe bender
12/01/1999CN1236678A Electrically-powered cutting and bending machine
11/1999
11/30/1999US5992210 Tube bending apparatus and method
11/30/1999CA2161629C Microprocessor controlled apparatus and method for forming metal building panels
11/25/1999DE19922189A1 Electrically operated bending device
11/25/1999DE19822023A1 Self-learning device for bending machine
11/18/1999DE19839526C1 Method of pressing metal component from sheet blank
11/17/1999EP0956369A1 A method for manufacturing of curved and quenched profiled elements and a die tool for carrying out the method
11/17/1999CN2348948Y Reciprocative rotation type bender for B type pipe
11/09/1999US5979204 Quick change tooling method and apparatus
11/03/1999EP0952896A1 Machine for bending tubes with small diameter
11/03/1999CN1233540A Intrados induction heating for tight radius rotary draw bend
10/1999
10/27/1999CN1232729A Tube bender loader and unloader
10/27/1999CN1045911C Bending unit with adjustable arc steel-bar for bender
10/26/1999US5970770 Modular multipurpose bending machine and its linear positioning system
10/21/1999WO1999052753A1 Method for producing flat bar windshield wipers provided for vehicles and having bent flat bars
10/21/1999DE19816609A1 Verfahren zum Herstellen von Flachbalken-Scheibenwischern für Fahrzeuge mit gebogenen Flachbalken A method for producing flat bar wipers for vehicles with curved flat bar
10/20/1999EP0950443A1 Tube bender loader and unloader
10/20/1999CN2344108Y Hog's bend tube bender
10/20/1999CN1045732C Tube bending apparatus
10/19/1999US5966979 Bending machine and method having positionable drawing rolls and limiting mechanism defining a transit and containing space for the workpiece
10/19/1999US5966974 Automatic learning apparatus for folding machine
10/14/1999DE19816333A1 Adjustment for spindle-operated tool with thread and counter thread
10/13/1999CN2342914Y Horizontal formed steel bending machine
09/1999
09/30/1999DE4330419C2 Antriebsvorrichtung für einen Biegekopf Driving device for a bending head
09/29/1999EP0944445A1 Method and device for three-dimensional bending of hollow metal sections
09/16/1999WO1999046067A1 Dual headed bending machine
09/14/1999US5950486 Extreme close end bending die
09/14/1999US5950474 Bending apparatus
09/08/1999EP0940198A2 Bending device
09/08/1999CN1044982C Metal profile bending roll forming equipment
09/07/1999US5946960 Bending machine for bending pipes and wire-like material in general
09/01/1999CN2335720Y Section roll bending machine
08/1999
08/31/1999US5943903 Binding structure for multiple small and thin pipes
08/25/1999CN2334512Y Simple type plastic die for three-dimension pipe bending
08/17/1999US5937687 In a tube bending machine
08/17/1999US5937686 Bending apparatus for hollow double-structured pipe
08/11/1999EP0934783A2 Bending device and bending method
08/11/1999CN2332504Y Dual-wheel one-push mechanism of pipe bender
08/11/1999CN2332503Y One-push two-way pipe bender
08/10/1999US5935472 Formed molding torpedo device and a method for making the same
08/10/1999US5934138 Tool and method for bending angle stock
08/10/1999US5934132 Offset bender for tubing
08/05/1999WO1999038626A1 Tube bending machine and magazine device thereof
08/04/1999CN2331504Y Forming wheel for frame metal wire of sealing strips
08/04/1999CN2331451Y Mould for bending processing metal round pipe
08/03/1999US5931039 Electrical bar cutting and bending tool
07/1999
07/29/1999DE19902271A1 Induction heating production for narrow-radius turning draft arc boiler pipe
07/28/1999EP0858372B1 Flexible shoe for a bending machine
07/27/1999US5927141 Conduit bender head
07/27/1999US5927126 Bending machine for bending wire-like material, such as pipes, rods or section members
07/27/1999US5927124 Apparatus for bending and cutting tubing, and method of using same
07/27/1999CA1340677C Method for bending of pipes using procedure of heating with flame followed by cooling with water
07/22/1999WO1999036201A1 Leaf spring straightening apparatus
07/22/1999CA2315402A1 Leaf spring straightening apparatus
07/21/1999CN2329458Y Hand reinforcing steel bending machine
07/14/1999EP0928647A2 Tube bending apparatus and method
07/14/1999EP0928646A1 Bending device
07/14/1999EP0928645A1 Bending device
07/13/1999US5921132 Portable tube bender
07/07/1999CN1221657A Bending machine able to vary curvature curve
07/06/1999US5918496 Adjustable clamp die for tube bending machine
06/1999
06/30/1999CN2326363Y Formation machine for arc of plastic-steel door and window
06/29/1999US5916319 Method to cold-bend resin-coated ribbed steel pipes
06/22/1999US5913929 Bending arrangement for aluminum profile
06/16/1999CN2323886Y Space angle-turning mechanism for pipe bending machine
06/09/1999CN2322714Y Pipe bender
06/02/1999EP0919303A2 Adjustable clamp die for tube bending machine
05/1999
05/25/1999US5906128 Used for metal pieces for reinforcement purposes or metallic wire
05/25/1999US5906126 Angle adjusting device of steel bar bending apparatus
05/20/1999WO1999024189A1 Forming tool heating device
05/20/1999CA2309306A1 Forming tool heating device
05/19/1999CN2319149Y Multifunctional arc shaper
05/19/1999CN2319148Y 液压弯管机 Hydraulic pipe bender
05/17/1999CA2221324A1 Tub bending apparatus and method
05/12/1999CN2317968Y Bending roll machine for aluminium alloy section
05/12/1999CN2317967Y Thin-wall shaped square copper-tube bending machine
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