| Patents for B21D 15 - Corrugating tubes (1,257) |
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| 12/19/2012 | CN202606607U Tooling for processing expansion joint on pipe fitting |
| 12/18/2012 | US8333099 Method for making a tube of a telescopic device |
| 12/12/2012 | CN202591334U Hydraulic automatic control special fold pinching machine for casing assembly |
| 12/05/2012 | CN202570910U Tooth cylinder outer machining tool |
| 12/05/2012 | CN202570909U Tooth cylinder processing device |
| 12/05/2012 | CN202570908U Internal processing tool of toothed cylinder |
| 11/28/2012 | CN202555692U Manufacturing module for high-density polyethylene (HDPE) double-wall corrugated pipe with arched corrugations |
| 11/28/2012 | CN202555661U Metal smoke tube telescopic bend molding device |
| 11/28/2012 | CN202555657U Horizontal large-size cylinder rib rolling machine |
| 11/28/2012 | CN102794342A Device for processing raised stripes on pipe |
| 11/14/2012 | CN202527563U Automatic compression wave machine for corrugation oil ring manufacture |
| 11/07/2012 | CN102764803A Automatic rib rolling machine |
| 11/01/2012 | US20120272950 Insulating element for expansion compensation device and method for the manufacture thereof |
| 10/31/2012 | CN102756025A Bellows manufacturing machine and bellows production process thereof |
| 10/24/2012 | CN202498120U Corrugated connecting pipe and production equipment thereof |
| 10/17/2012 | CN102728682A Chain tube mill |
| 10/10/2012 | CN202484295U Radial sealing structure for inner cavity in corrugated pipe molding process |
| 10/10/2012 | CN202479373U Hydraulic pressure or pneumatic driving die parting mechanism for bellows molding parting and closing dies |
| 10/10/2012 | CN202479372U Hydraulic or pneumatic driving locking mechanisms for separating and closing die for forming corrugated pipe |
| 10/10/2012 | CN202479356U Hydraulic drive separating-combining corrugated pipe forming die structure |
| 10/10/2012 | CN202479355U Combined corrugated pipe forming mould plate with bolt connection structure |
| 10/10/2012 | CN202479298U Hydraulic corrugated pipe moulding machine |
| 10/10/2012 | CN202479297U Registering type installation structure for locating hydraulic cylinder and die-splitting hydraulic cylinder of corrugated pipe hydraulic forming machine |
| 10/10/2012 | CN202479296U Water injection and guiding structure in molding process of corrugated pipe |
| 10/10/2012 | CN202479295U Water injection structure of inner cavity of corrugated pipe in forming process |
| 10/03/2012 | CN102699167A Tool for machining expansion joint on pipe fitting |
| 10/03/2012 | CN102699166A Tool for processing expansion joint on pipe fitting |
| 09/26/2012 | CN102688921A Roller brush molding pipe thread cutting machine and method for manufacturing thread |
| 09/19/2012 | CN102672021A Composite finned tube rolling machine tool |
| 09/06/2012 | DE102005063539B4 Verfahren und Vorrichtung zum Herstellen eines Rillenrohrs und dessen Konstruktion Method and apparatus for producing a grooved tube and its construction |
| 08/30/2012 | US20120216590 Method of forming industrial housings |
| 08/29/2012 | EP2490834A1 Method for producing a threaded shaft for a shaft drive; a roller screw drive comprising such a threaded shaft, and use of said roller screw drive |
| 08/28/2012 | US8250893 Adjustable knurling tool |
| 08/22/2012 | CN102641930A Horizontal rolling machine for large-size barrels |
| 08/21/2012 | US8245374 Roller burnishing machine for crankshafts |
| 08/09/2012 | WO2012104256A1 Method and wellbore system |
| 08/01/2012 | CN202356482U Steel pipe rib expanding equipment |
| 08/01/2012 | CN202356481U Corrugated pipe elbow forming machine |
| 07/31/2012 | US8230571 Self-attaching fastener and panel assembly, method of installation and die member |
| 07/18/2012 | CN102588682A One-step formed weldless mechanically sealed metal corrugated pipe |
| 07/18/2012 | CN101362177B Forming technique of hose elbow core |
| 07/11/2012 | EP2473296A1 Device and method for processing elongate workpieces without cutting |
| 07/11/2012 | CN202316775U 压管模具 Pressure pipe mold |
| 07/11/2012 | CN102574185A Method for producing a threaded shaft for a shaft drive |
| 07/04/2012 | CN101269390B Hollow rack manufacturing method and manufacturing apparatus |
| 07/04/2012 | CN101249540B Mandrel, set of mandrels, and hollow rack bar |
| 06/21/2012 | DE112009003755T5 Fördervorrichtung, Verfahren zum Herstellen einer Fördervorrichtung und Verfahren zum Wärmebehandeln von Metallringen unterVerwendung einer Fördervorrichtung Conveying apparatus, method of manufacturing a conveyor apparatus and method for heat treating of metal rings using a conveying device |
| 06/20/2012 | CN202278054U 波纹管成型夹具 Bellows forming jig |
| 06/19/2012 | CA2591958C Method for producing longitudinal grooves in cylindrical workpieces |
| 06/13/2012 | CN202270797U 一种egr管件的弯管装置 Bending apparatus egr pipe member |
| 06/13/2012 | CN202270794U 罩式炉筒体波纹成型辊压机 Bell-type furnace tube corrugating roller press |
| 05/30/2012 | CN202239132U Bellows forming machine |
| 05/30/2012 | CN202239131U Ring wave tube forming machine length adjustment device |
| 05/30/2012 | CN102476138A 复式辊辗机 Duplex roller rolling machine |
| 05/16/2012 | CN101524728B Method for molding expandable bellows |
| 05/08/2012 | US8171769 Method of forming a flanged tubular member in hydroforming |
| 05/03/2012 | WO2012000490A3 Method and device for incrementally shaping profiled pipes, in particular profiled pipes having cross-sections that vary over the longitudinal axis and profiled pipe of this type |
| 05/02/2012 | CN102430622A Convex ring processing device |
| 04/25/2012 | EP1868750B1 Method for straightening an eccentric shaft |
| 04/25/2012 | CN202199649U 一种内螺纹铜管加工压模的定位装置 An internal thread brass machining die positioning device |
| 04/24/2012 | US8161785 Circular-shaping device for a rotating part, especially an exhaust housing of a turbo engine |
| 04/18/2012 | CN202192142U 管件鼓包成型机构 Fittings bulge forming mechanism |
| 04/11/2012 | CN102410770A 内螺纹型高齿翅片铜管及其生产工艺 Tapped high gear finned copper tube and its production process |
| 04/04/2012 | CN202180134U 汽车轮毂的成套组合模具及其上凸模和下模 Automotive wheel sets of combinations on the punch and die and a lower die |
| 04/04/2012 | CN102397927A Elbow pipe device of EGR (exhaust gas recirculation) pipe fitting and forming technique thereof |
| 04/03/2012 | US8150226 Method and apparatus for manufacturing an optical cable and cable so manufactured |
| 03/28/2012 | EP2432604A1 Method for producing sealing elements |
| 03/27/2012 | US8141402 Pretension loading method for power transmission chain and pretension loading apparatus |
| 03/21/2012 | CN102387875A Method for producing sealing elements |
| 03/20/2012 | CA2573677C Method and apparatus for forming a modified conduit |
| 02/22/2012 | CN102357576A Bell-type furnace tube corrugation roller press |
| 02/15/2012 | CN101793475B 传热管及其制造方法 A heat transfer tube and a method of manufacturing |
| 02/08/2012 | EP2331271B1 Method of profiling a tube of given length |
| 02/08/2012 | EP2282854B1 Roll forming method for producing longitudinally toothed profiled bodies in pot-shaped cylindrical workpieces |
| 01/26/2012 | DE102009024847B4 Vorrichtung zur Herstellung wendelförmiger Wellrohre An apparatus for producing a helical corrugated pipes |
| 01/25/2012 | CN202123167U Automatic feeding device of forming machine for large corrugated tubes |
| 01/25/2012 | CN202123139U Device for forming special corrugated compensating pipe |
| 01/25/2012 | CN202123138U Transposition device of large-sized corrugated pipe forming machine |
| 01/18/2012 | CN102319804A Disposable forming die for a plurality of bosses at end part |
| 01/11/2012 | CN102310120A Method for thermoforming corrugated furnace of boiler |
| 01/10/2012 | US8091402 Method of manufacturing bottle can |
| 01/10/2012 | US8091397 Compact roll grooving apparatus with adjustable mounting and extended backup roller shaft |
| 01/10/2012 | US8091200 Bulge forming method and bulge forming apparatus |
| 01/10/2012 | CA2603996C Method for straightening an eccentric shaft |
| 01/05/2012 | WO2012000490A2 Method and device for incrementally shaping profiled pipes, in particular profiled pipes having cross-sections that vary over the longitudinal axis |
| 12/29/2011 | WO2011162376A1 Pipe machining device and method |
| 12/29/2011 | WO2011162375A1 Tube machining device and method |
| 12/29/2011 | DE102010025593A1 Verfahren und Vorrichtung zur inkrementellen Umformung von Profilrohren, insbesondere von Profilrohren mit über die Längsachse variierenden Querschnitten Method and apparatus for incremental forming of profiled pipes, in particular section tubes along their longitudinal axis varying cross sections |
| 12/21/2011 | CN202079137U 波纹管成型机波纹成型装置 Bellows forming machine corrugated molding device |
| 12/21/2011 | CN102284581A 制备多波膨胀节同轴度保证的方法 Preparation of multi-wave expansion joints guaranteed way coaxial |
| 12/21/2011 | CN102284580A 一种大型波纹管成型机 A large, corrugated pipe machine |
| 12/14/2011 | CN102274902A 波纹管成型机旋转托盘机构 Bellows forming machine rotating tray mechanism |
| 12/07/2011 | CN202061968U 复合翅片管滚轧机床 Composite fin tube rolling mill bed |
| 12/06/2011 | CA2523106C Methods and apparatus for manufacturing of expandable tubular |
| 11/30/2011 | CN102259128A Forming device for shaped corrugation compensating pipe |
| 11/30/2011 | CN101856687B 电流辅助钛及钛合金波纹管单波连续成形装置及成形方法 Device and method of forming the current auxiliary titanium and titanium alloy bellows forming a single continuous wave |
| 11/23/2011 | CN202045232U Processing device for corrugated tube moulding machine |
| 11/23/2011 | CN202045231U Length adjusting device for annular corrugated pipe forming machine |
| 11/23/2011 | CN102257165A Conveying jig, method of manufacturing conveying jig, and method of heat-treating metal rings using conveying jig |
| 11/23/2011 | CN102248051A Device for rolling outer conductor of corrugated tube |