| Patents for B21D 9 - Bending tubes using mandrels or the like (1,513) |
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| 02/04/2003 | US6513540 System and method for using bent pipes in high-purity fluid handling systems |
| 01/30/2003 | DE10130937C1 Verfahren und Vorrichtung zur Ermittlung der Raumgeometrie eines gebogenen Strangprofils Method and apparatus for determining the spatial geometry of a bent extrusion profile |
| 01/22/2003 | EP1276573A1 Bending device for thin-walled metal pipes |
| 01/15/2003 | EP1183114B1 Bending block for a bending device and bending method for tubes |
| 01/09/2003 | WO2003002280A1 Method and device for determining the spatial geometry of a curved extruded profile |
| 12/18/2002 | EP1265719A2 Use of pipes consisting of titanium zinc conforming to en 988 and a bending method for producing pipe bends |
| 12/05/2002 | DE10124866A1 Werkzeug für Biegemaschine Tool for bending machine |
| 11/28/2002 | WO2002094470A1 Device for bending closed hollow profiles in peripheral direction |
| 11/28/2002 | WO2002094469A1 Device and method for bending profiles |
| 11/28/2002 | WO2002094468A1 Tool for a bending machine |
| 11/28/2002 | DE10125151A1 Pipe bending tool has a tubular insert with a swivel mounted head on spherical mountings and secured by a rigid bolt |
| 11/27/2002 | EP1260745A2 System and method for using bent pipes in high-purity fluid handling systems |
| 11/20/2002 | CN1094393C Small radius bending method of metal pipe and positioner processing method |
| 11/14/2002 | US20020166590 System and method for using bent pipes in high-purity fluid handling systems |
| 11/14/2002 | DE10123265A1 Profil-Dornschaft-Werkzeug Profile mandrel shaft tool |
| 11/13/2002 | EP1256394A2 Profile bending machine with mandrel |
| 11/11/2002 | CA2670718A1 System and method for using bent pipes in high-purity fluid handling systems |
| 11/11/2002 | CA2384397A1 System and method for using bent pipes in high-purity fluid handling systems |
| 10/02/2002 | CN2513692Y Movable rolling pipe bender |
| 09/17/2002 | US6450001 Method and apparatus for manufacturing thick-walled bent pipe |
| 09/12/2002 | WO2002070162A1 Bending method and bending device for non-circular tube, structural member formed of non-circular tube, and structure using the structural member |
| 09/05/2002 | DE10205789A1 Bending head for bending tubes has operating bush and central mandrel linearly adjustable on hollow stem sleeve |
| 08/21/2002 | CN2506367Y Mould for bending metal pipe |
| 05/21/2002 | US6389872 Mandrel apparatus with floating spring members |
| 04/10/2002 | CN1343874A Method for bend measuring tube |
| 03/28/2002 | DE10045849A1 Method for bending a pipe for use in a Coriolis mass flowmeter, in which a flexible support body is placed in the pipe which is then filled with wax, etc. prior to bending in a mold, so that more accurate results are achieved |
| 03/20/2002 | EP1189038A1 Method of bending measuring tubes |
| 03/14/2002 | WO2001070426A3 Use of pipes consisting of titanium zinc conforming to en 988 and a bending method for producing pipe bends |
| 03/06/2002 | EP1183114A1 Bending block for a bending device and bending method for tubes |
| 02/21/2002 | DE10020991C2 Anordnung zum Anschliessen einer Schmiermittelversorgung an eine Dornstange einer Biegemaschine für Rohre Arrangement for connecting a lubricant supply to a mandrel bending machine for pipes |
| 02/19/2002 | US6347539 Bending method for pipe material |
| 01/03/2002 | DE10119030A1 Bending device for bending tubes in two and/or three dimensions has bending rollers in plane perpendicular to tube input axis |
| 01/02/2002 | EP1166911A2 Machine for bending tubes and the like |
| 12/26/2001 | CN2467219Y Antiflat and anti shrunken device for steel pipe bending processing |
| 12/20/2001 | DE10028340A1 Pipe and tube bender of frame and sled acts on sled movement by dampers acting on frame and sled endstops to cushion sled into and through progressive bend points. |
| 11/21/2001 | EP1154870A1 Process for deforming a piece of thin-walled metal tube |
| 11/20/2001 | US6318424 Multi-purpose hydraulic press, metal bending, and log splitting apparatus |
| 11/15/2001 | DE10021028A1 Bending machine for long profile workpieces or pipes, has bending device, workpiece clamping device, and supporting devices for workpiece and bending pin before or after clamp |
| 11/08/2001 | WO2001083130A1 Bending device for thin-walled metal pipes |
| 11/08/2001 | DE10020991A1 Arrangement for connecting lubricant supply to mandrel bar of pipe bending machine involves insert component at one end of mandrel bar with inner bore for lubricant feed |
| 11/08/2001 | DE10020728A1 Biegevorrichtung für dünnwandige Metallrohre Bending device for thin-walled metal tubes |
| 11/08/2001 | DE10020725A1 Biegevorrichtung für dünnwandige Metallrohre Bending device for thin-walled metal tubes |
| 10/31/2001 | EP1149641A2 Bending apparatus for thin-walled metal pipes |
| 10/31/2001 | EP1149640A2 Bending apparatus for thin-walled metal pipes |
| 10/18/2001 | US20010029764 Angled ductwork fittings, flexible fitting machine and methods of manufacture |
| 10/11/2001 | DE10014519A1 Verwendung von Rohren aus Titanzink nach EN 988 und Biegeverfahren zur Herstellung von Rohrbögen Use of pipes consisting of titanium zinc to EN 988 and the bending process for the manufacture of pipe bends |
| 10/04/2001 | DE10020727C1 Bending device for thin-walled metal pipes has pivoted bending block and flexible thorn inserted in end of pipe fed along straight pipe guide |
| 10/03/2001 | CN1072041C Protective mould means for bending small-bore thin wall metal floral tube |
| 09/27/2001 | WO2001070426A2 Use of pipes consisting of titanium zinc conforming to en 988 and a bending method for producing pipe bends |
| 09/26/2001 | EP0909231A4 Curved wall and ceiling frame member and method and apparatus for producing the same |
| 08/28/2001 | US6279369 Pipe bending method and mandrel assembly for carrying out the method |
| 07/31/2001 | CA2023675C Apparatus and method for forming a tubular frame member |
| 06/28/2001 | DE19960869A1 Re-forming hollow metal profile, pinches and seals one end in forming mold, then injects pressure medium into other end from conventional plastic pressure injection molding machine |
| 06/20/2001 | EP0853510A4 Programmable pressure controlled mandrel extractor for tube bending machine |
| 06/12/2001 | US6244092 Bending mandrel |
| 05/09/2001 | EP1097755A1 Bending method for pipe material |
| 03/21/2001 | EP1084005A1 Method for bending a double pipe, in particular a bimetalic pipe |
| 03/21/2001 | CN1063362C Tube expanding mandrel, tube expanding method and tube expanding apparatus using said mandrel, and head-exchanger having such exchanging tube |
| 03/07/2001 | EP0678352B1 Tube expanding apparatus using tube expanding mandrel and method for expanding a tube using such an apparatus |
| 03/07/2001 | CN2422075Y Combined high efficient pipe bender |
| 02/20/2001 | US6189354 Method and modular-multistation device for folding profiles |
| 12/21/2000 | WO2000076683A1 Bending block for a bending device and bending method for tubes |
| 12/21/2000 | DE19926330A1 Biegedorn für eine Biegevorrichtung und Biegeverfahren für Rohre Mandrel bender for bending and methods for pipes |
| 12/13/2000 | CN1276274A Technology for manufacturing elbow pipe with straight segment |
| 12/05/2000 | US6155091 Mandrel assembly for tube-bending apparatus |
| 11/29/2000 | CN1058915C Apparatus and method for bending forging metal pipe as artist product |
| 11/21/2000 | CA2173076C Process of hydroforming tubular suspension and frame components for vehicles |
| 11/16/2000 | WO2000067931A1 Die forming |
| 11/07/2000 | US6142005 Die-protecting device used in bending an embossed metallic straight pipe with a small diameter and a thin wall |
| 10/31/2000 | US6138359 Curved wall and ceiling frame member and method and apparatus for producing the same |
| 10/25/2000 | CN1270858A Small radius bending method of metal pipe and positioner processing method |
| 10/15/2000 | CA2269138A1 Tube bending apparatus and method |
| 10/11/2000 | CN2400198Y Spring-loaded floating die for bending tubes |
| 09/20/2000 | EP1036606A1 Bending machine, in particular one with a mandrel |
| 09/07/2000 | DE19952508A1 Bending process for pipes to achieve even diameter uses incompressible oil or water to fill pipe during bending |
| 08/24/2000 | WO2000048762A1 Process for deforming a piece of thin-walled metal tube |
| 08/22/2000 | US6106048 Sun visor for automobiles |
| 08/16/2000 | CN1262972A Working method of hollow bent pipe |
| 07/27/2000 | WO2000043143A1 Bending method for pipe material |
| 07/11/2000 | US6085572 Tube bending mandrel |
| 07/05/2000 | CN1054084C Slaved tube length controller for U-shape tube bender |
| 06/14/2000 | CN1053406C Method and apparatus for filling and discharging filling material |
| 06/14/2000 | CN1053405C Cold drawing tech. for forming reducing stainless steel elbow |
| 05/25/2000 | DE19955200A1 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 |
| 04/05/2000 | CN2372074Y Pipe bending machine structure |
| 04/04/2000 | US6044687 Three-dimensional simple flexible mould for bending pipes |
| 03/07/2000 | US6032511 Three-dimensional simple flexible mould for bending pipes |
| 02/17/2000 | DE19835190A1 Mechanical bending method for long tubes uses single bending unit only with single bending head and tube clamping device |
| 02/16/2000 | CN2363805Y Pipe hot-bending mould |
| 02/03/2000 | DE19833006A1 Manufacturing system for curved tubular construction members using high-pressure deformation with mandrels inside tube and high-pressure fluid inside tube |
| 01/18/2000 | US6014884 Method of bending tubing |
| 01/13/2000 | DE19830962A1 Bending device for rod-shaped workpieces |
| 01/04/2000 | US6009737 Tube bender |
| 12/16/1999 | WO1999064180A1 Method for bending a double pipe, in particular a bimetalic pipe |
| 12/15/1999 | EP0963800A2 Bending apparatus for bending small or smaller tool independent bending radius |
| 11/09/1999 | US5979204 Quick change tooling method and apparatus |
| 11/02/1999 | US5974854 Apparatus for bending forging artistic metallic pipes |
| 09/08/1999 | EP0939681A1 Bending mandrel |
| 08/17/1999 | US5937686 Bending apparatus for hollow double-structured pipe |
| 06/08/1999 | US5909908 Combined processing apparatus |