| Patents for B21D 9 - Bending tubes using mandrels or the like (1,513) |
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| 03/19/2014 | CN203484460U Pipe bending machine |
| 03/12/2014 | CN203470583U Pipe bending machine with ball steel chain elbow pipe lining head |
| 03/05/2014 | CN103611839A Bent pipe feeding mechanism of pipe bender |
| 02/26/2014 | CN203448479U Special portable bending wrench for multi-core tubes |
| 02/20/2014 | CA2786511A1 Method and device for producing tapering pipe sections on ground screw foundations |
| 02/18/2014 | US8650922 Pipe bender and method for spiral pipe bending with the pipe bender |
| 02/12/2014 | CN103567265A Method for using urea as oil pump guide pipe bending filler |
| 02/12/2014 | CN103567264A Method for inner diameter bulging braking forming of copper thin-wall pipe |
| 02/12/2014 | CN102284575B Inner high-pressure rubber pocket pipe fitting bending and forming device and forming method thereof |
| 01/29/2014 | CN203410020U Line pipe bender |
| 01/28/2014 | CA2657518C Hot bend pipe and a process for its manufacture |
| 01/22/2014 | CN103521571A Pipe bending machine |
| 01/22/2014 | CN103521562A Full servo underdrive type CNC bending machine belt drive system |
| 01/21/2014 | US8631671 Internal mandrel and method |
| 01/16/2014 | DE102010046181B4 Verfahren zur Umformung eines zylindrischen Rohrkörpers und Anordnung zur Durchführung des Verfahrens A method of forming a cylindrical tube body and arrangement for performing the method |
| 01/15/2014 | CN203390017U Flexible core rod used for stretching and bending hollow metal pipe section bar |
| 01/08/2014 | CN103495630A Cold bend forming device for main pipeline of nuclear power station device and core module |
| 01/02/2014 | US20140000337 Bending core |
| 01/01/2014 | EP2679319A1 Bending core |
| 01/01/2014 | CN203370943U Bending die for rectangular-section thin-wall steel tube |
| 01/01/2014 | CN203370887U Novel pipe-bending machine |
| 12/27/2013 | WO2013189582A1 Device and method for bending pipes for pipelines |
| 12/25/2013 | CN203356297U Bend inner core fixing seat |
| 12/25/2013 | CN203356296U Tube bending device |
| 12/25/2013 | CN203356294U Bend guiding wheel |
| 12/25/2013 | CN203356293U Liner for machining 90-degree elbow |
| 12/25/2013 | CN103464550A Pipe fitting pushing device for pipe bending machine |
| 12/25/2013 | CN103464549A Pipe bending device for metal pipe |
| 12/25/2013 | CN102601186B Precision control method of springback radius and springback angle for numerical control forming of bent pipe |
| 12/24/2013 | DE102012012139A1 Vorrichtung und Verfahren zum Biegen von Rohrleitungen für Pipelines Apparatus and method for bending pipes for pipelines |
| 12/18/2013 | CN203343238U Novel pipe bending machine |
| 12/18/2013 | CN103459057A Method and tool for bending titanium member |
| 12/18/2013 | CN103447364A Manufacturing technology of car-carried refrigerator heat exchange tube |
| 12/18/2013 | CN103447363A Novel pipe bending machine |
| 12/12/2013 | WO2013181920A1 Tube-propelling apparatus for tube bending machine |
| 12/11/2013 | CN203330203U Core rod assembly for pipe bending machine |
| 12/11/2013 | CN203330202U Universal guide mooring rope base bending structure |
| 12/10/2013 | US8601855 Vise apparatus with a bending fixture |
| 12/10/2013 | US8601848 Bending device |
| 12/10/2013 | US8601847 Bending device |
| 12/04/2013 | CN102581092B Inner core die for bent pipe |
| 11/27/2013 | EP2667073A1 Pipe section made of sheet metal and method for producing same, stretching-bending apparatus for producing a pipe elbow and method for producing a pipe elbow |
| 11/27/2013 | CN203304441U Automatic unloading equipment used for three-dimensional numerically-controlled pipe bending machine |
| 11/27/2013 | CN203304351U Core rod for pushing bend |
| 11/27/2013 | CN102015141B Supporting core for producing hollow profiled elements |
| 10/29/2013 | US8567225 Method and apparatus for manufacturing a bent member |
| 10/22/2013 | US8561445 Rounding system and method used in the manufacture of wind towers |
| 10/17/2013 | US20130269408 Metal pipe, and method and device for processing the same |
| 10/16/2013 | CN203235797U Head-sealing tool for oil-pressure round pipe |
| 10/15/2013 | US8555694 Bending apparatus and bending machine |
| 10/09/2013 | CN103341536A Tube bending inner supporting device and tube bending method |
| 10/09/2013 | CN103341521A Method for optimization of pipe integrated numerical control machining process |
| 10/02/2013 | CN103331378A Bending die for thin-walled steel pipe with rectangular section |
| 10/02/2013 | CN103331348A Bending method for thin-walled steel pipe with rectangular section |
| 10/02/2013 | CN103331347A Flexible bending method for metal pipe fitting |
| 10/02/2013 | CN103331346A Core rod component for pipe-bending machine |
| 10/02/2013 | CN102744304B Processing method of cavity cold-bending large-caliber thin-wall aluminum bent pipe |
| 10/02/2013 | CN102430626B Thin-wall equant (small)-radius elbow secondary forming device and secondary forming method thereof |
| 09/25/2013 | EP2641668A1 Sheet metal bending machine |
| 09/25/2013 | CN203209498U Bending forming device |
| 09/25/2013 | CN203209497U Pipe core-through cold bending machine |
| 09/25/2013 | CN103316974A Pipe bending method of pipe bending machine |
| 09/17/2013 | US8534110 Method and apparatus for tube bender set-up |
| 09/11/2013 | CN203184371U Improved control panel for bending machine |
| 09/11/2013 | CN103286173A Tubular product bending internal pressing supporting device and tubular product bending method |
| 09/11/2013 | CN102266886B Sand filling machine |
| 09/10/2013 | US8528380 Bending apparatus |
| 09/04/2013 | CN203170781U 拉线棒成型模 Wire rod molding |
| 09/04/2013 | CN203170780U Elbow pushing device capable of producing bent pipe by pushing |
| 09/04/2013 | CN103272899A Pipe-bending machine |
| 08/28/2013 | CN203155863U Automatic clamping and discharging mechanism for thin-walled pipe bender |
| 08/28/2013 | CN203155806U Punching and pipe bending core rod used for pipe-bending machine |
| 08/28/2013 | CN203155780U Mandril inserting mechanism for cutting and pipe bending integrated machine |
| 08/28/2013 | CN102161059B NC bending core head for thin walled tube of aluminum alloy with major diameter and design method thereof |
| 08/22/2013 | DE112011101931T5 Vorrichtung und Verfahren zum Ausbilden von Biegungen in rohrförmigen Werkstücken Apparatus and method for forming bends in tubular workpieces |
| 08/21/2013 | CN203140563U Soft pipe-bending die in ball-and-socket joint structure |
| 08/21/2013 | CN103252392A Molding equipment for large-diameter thin-walled elbow pipe |
| 08/14/2013 | CN203124505U Pipe-bending machine |
| 08/14/2013 | CN203124504U Pipe bender |
| 08/14/2013 | CN103240311A Flexibility core rod for stretching hollow metal tube section bar to be bent |
| 08/13/2013 | US8505353 Method of manufacturing magnesium alloy processing materials with low cycle fatigue life improved by pre-straining |
| 08/07/2013 | CN203109003U Device for recycling fusible alloy for forming pipe and clearing pipe wall adhesion |
| 08/07/2013 | CN203109002U Steel cable type universal through core |
| 08/07/2013 | CN103230970A Method for bending large-diameter thin-wall metal hydraulic pipe |
| 08/01/2013 | US20130192047 Method of manufacturing supporting structure, swaging jig for use therein and the supporting structure |
| 07/31/2013 | CN203091484U Full-servo belt type numerical control bending machine main drive system |
| 07/23/2013 | US8490457 Bent metal member and a method for its manufacture |
| 06/26/2013 | CN203018516U Pipe bending machine |
| 06/26/2013 | CN203018515U Mandrel for elbow |
| 06/20/2013 | DE102012213731A1 Mit einem Pantograf ausgestattete Biegemaschine With a pantograph equipped bending machine |
| 06/19/2013 | CN203002878U Combined pipe bender ball pin assembly |
| 06/19/2013 | CN103157709A Machine head of pipe bending machine |
| 06/19/2013 | CN103157707A Thick wall steel tube bending fuel gas heating device |
| 06/12/2013 | CN202984369U Forming machine remodeling and regulating mechanism |
| 06/05/2013 | CN202963136U Core insertion mechanism for automobile doorframe cold-roll forming |
| 06/05/2013 | CN103128145A Pipe bender |
| 06/05/2013 | CN102335686B Machine for bending and forming tee pipes |
| 05/29/2013 | CN103121057A Power transmission mechanism used for sand filling machine |
| 05/23/2013 | US20130125608 Multi-sided tube swaging apparatus and method |
| 05/22/2013 | CN202943116U Simple pipe bending machine |