| Patents for B23F 15 - Methods or machines for making gear wheels of special kinds, not covered by groups (448) |
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| 09/07/2011 | CN102172790A Numerical control gear hobbing processing control device and processing control method for face gear |
| 08/18/2011 | WO2011099546A1 Processing method and processing device for concave-convex gear |
| 08/18/2011 | WO2011099545A1 Processing method for concave-convex gear |
| 08/11/2011 | WO2011096274A1 Machine tool for machining screw rotor and method of machining screw rotor using same |
| 08/04/2011 | WO2011094492A1 Continuous method for manufacturing face gears |
| 07/27/2011 | EP2347847A1 Method for grinding a workpiece section |
| 06/29/2011 | CN102107301A Process technique for processing spline tooth profiles through replacing involutes with circular arcs |
| 05/31/2011 | CA2482988C Gear tooth profile |
| 05/18/2011 | CN102059404A High-efficiency conjugating and generating method of high-precision space helical tooth profile |
| 03/30/2011 | CN101992328A Gear honing method and device |
| 02/10/2011 | WO2011017301A1 Method and tool for manufaturing face gears |
| 02/09/2011 | CN101251181B Helical teeth elliptic gear as well as method for three-dimensional model-building accurately and entity shaping |
| 01/26/2011 | EP2131987B1 Tooth chamfering method |
| 12/29/2010 | CN101927380A Grinding head dedicated to planar double-enveloping worm |
| 12/23/2010 | US20100319484 Wave Gear Device |
| 12/01/2010 | CN101406974B Device for processing spherical gear |
| 11/30/2010 | CA2581724C Method and apparatus for manufacturing a face gear |
| 11/10/2010 | CN201625815U Back taper tooth processing device adopting obliquely squeezing method according to quadrate axis |
| 09/16/2010 | WO2010102992A1 Device and method for producing a bevel gear, in particular a crown gear |
| 09/16/2010 | DE102009003601A1 Vorrichtung und Verfahren zum Fertigen eines Kegelrades, insbesondere eines Kronenrades Apparatus and method for manufacturing a bevel gear, in particular a crown wheel |
| 07/29/2010 | US20100190559 Multi-piece yoke assembly |
| 07/08/2010 | DE102009045254A1 Ein Servomotor zum Betätigen eines Dorns beim Extrudieren einer Schrägverzahnung A servo motor for actuating a mandrel in a helical gear extruding |
| 06/16/2010 | CN101733485A Method for machining tooth profile of circular arc end tooth |
| 05/20/2010 | DE102008057383A1 Machine element for use with Hirth spur toothing, has tooth with two tooth flanks and front surface, where transition area is provided between tooth flanks and front surface |
| 05/05/2010 | CN101700588A Processing method for cylindrical gear with epicycloid tooth traces |
| 02/09/2010 | CA2292857C Face gear manufacturing method and apparatus |
| 02/04/2010 | US20100029183 Method for the production of a workpiece and grinding machine |
| 02/03/2010 | EP2149425A1 Method and apparatus for producing a screw compressor rotor |
| 02/02/2010 | CA2419967C Gear shaping machine and method for operation of a gear shaping machine |
| 01/06/2010 | CN201376132Y Lathedog gear flame cutting device |
| 12/17/2009 | DE102008035525B3 Verfahren zum Herstellen eines Werkstücks und Schleifmaschine A method of manufacturing a workpiece and grinding |
| 12/17/2009 | DE10116259B4 Verfahren und Vorrichtung zum Erzeugen von Hinterlegungen an Zahnflanken Method and apparatus for generating deposits on tooth flanks |
| 12/16/2009 | EP2131987A1 Tooth chamfering method |
| 12/08/2009 | US7628091 Composite gear and method of manufacturing the same |
| 10/01/2009 | DE19964396B4 Verfahren und Vorrichtung zum Erzeugen von Hinterlegungen an Zahnflanken von innen. Method and apparatus for generating deposits on tooth flanks of internally. oder außenverzahnten Werkrädern or externally toothed drive wheels |
| 09/02/2009 | CN101518843A Method and apparatus for working a screw rotor, end mill for working , and method of manufacturing a screw compressor |
| 09/02/2009 | CN101518842A Hub pitch gear repair method |
| 07/29/2009 | CN100520072C Screw compressor and manufacturing method of its rotor |
| 04/23/2009 | US20090104064 Method for manufacturing trochoid pump and trochoid pump obtained |
| 04/15/2009 | CN101406974A Device for processing spherical gear |
| 03/11/2009 | EP1732727B1 Method for cutting worm and worm gear in a worm and gear reduction unit with circulation of bearing balls and related cutting tools |
| 12/31/2008 | CN100447454C Composite gear and method of manufacturing the same |
| 11/06/2008 | US20080273935 Method for Cutting Worm and Worm Wheel in a Worm-Gear Reduction Unit with Circulation of Bearing Balls, and Related Cutting Tools |
| 10/23/2008 | US20080261742 Limited slip differential and manufacturing method for limited slip differential |
| 10/22/2008 | EP1983223A2 Limited slip differential and manufacturing method |
| 10/07/2008 | US7430791 Apparatus and method for processing screw rotor and cutting bit |
| 09/25/2008 | DE10041976B4 Vorrichtung und Verfahren zum Erzeugen von ballig ausgebildeten Anspitzungen an den Zähnen von Zahnrädern Apparatus and method for generating convex annular sharpened points on the teeth of gears |
| 08/27/2008 | CN101251181A Helical teeth elliptic gear as well as method for three-dimensional model-building accurately and entity shaping producing thereof |
| 08/20/2008 | CN101244474A Numerical control gear hobbing method for processing helical teeth elliptic gear and helical teeth non-circular gear |
| 08/06/2008 | CN100408260C Composite working machine tool and working method in composite working machine tool |
| 07/16/2008 | CN100402215C Gear machining equipment |
| 07/03/2008 | WO2008077593A1 Tooth chamfering method |
| 06/26/2008 | US20080153646 Method of Manufacturing a Non-Circular Drive Element and Drive Element Made Thereby |
| 06/26/2008 | DE4030789B4 Verfahren und Vorrichtung zur Herstellung eines Hauptrotors Method and apparatus for producing a master rotor |
| 06/26/2008 | DE102006062400A1 Zahnkantenfräsverfahren Zahnkantenfräsverfahren |
| 06/25/2008 | CN100396399C A device for forming tooth form of sprocket gear for power transmission apparatus of cahinless bicycle |
| 06/18/2008 | EP1843870A4 Apparatus for manufacturing a face gear |
| 06/18/2008 | CN100395064C Device and method for processing screw rotor, and cutting tool |
| 02/26/2008 | US7335091 Methods and apparatus for machining a coupling |
| 12/05/2007 | EP1066479B1 Face gearing with conical involute pinion |
| 11/15/2007 | WO2007048516A3 High gear ratio conical gear |
| 10/17/2007 | EP1843870A1 Apparatus for manufacturing a face gear |
| 09/27/2007 | DE102007000163A1 Verfahren zum Erzeugen eines Elements mit einer stirnverzahnten Fläche A method for generating an element having a front toothed surface |
| 08/15/2007 | EP1817131A1 Device and method for providing workpieces with a toothing, particularly with a toothing on the face |
| 08/09/2007 | US20070180696 Composite gear and method of manufacturing the same |
| 05/30/2007 | CN1318783C Gear tooth profile |
| 05/23/2007 | EP1787046A1 Method of manufacturing a non-circular drive element and drive element made thereby |
| 05/15/2007 | US7216407 Apparatus and method for processing screw rotor and cutting bit |
| 05/10/2007 | DE102005049528A1 Verfahren zum Herstellen von Schiebemuffen A method of producing sliding sleeves |
| 05/03/2007 | WO2007048516A2 High gear ratio conical gear |
| 04/24/2007 | US7207110 Differential housing with integrated ring gear |
| 04/04/2007 | CA2560810A1 Method for manufacturing a coupling |
| 03/29/2007 | US20070067992 Optimum number of teeth setting method for helical gear pair and helical gear pair manufactured by this method |
| 03/01/2007 | US20070049182 Methods and apparatus for machining a coupling |
| 02/28/2007 | CN1922419A Composite gear and method of manufacturing the same |
| 01/04/2007 | US20070003387 Apparatus and method for processing screw rotor and cutting bit |
| 12/20/2006 | EP1732727A1 Method for cutting worm and worm gear in a worm and gear reduction unit with circulation of bearing balls and related cutting tools |
| 10/18/2006 | CN1846916A Gear machining equipment |
| 10/18/2006 | CN1280055C Six-dimensional machining apparatus for spiral bevel gear |
| 10/18/2006 | CN1280054C Method for producing timing gear of environment protecting type engine |
| 08/31/2006 | DE19514349B4 Klauenkupplung für den Antrieb von Kraftfahrzeugen und Verteilergetriebe oder Achsausgleichsgetriebe mit einer solchen Dog clutch for the propulsion of motor vehicles and transfer case or Achsausgleichsgetriebe with such a |
| 08/10/2006 | WO2006082470A1 Apparatus for manufacturing a face gear |
| 07/13/2006 | DE10215569B4 Verfahren zum Herstellen eines starren innenverzahnten Zahnrads eines Wellgetriebes A method for manufacturing a rigid internal gear of a wave gear device |
| 06/14/2006 | DE102004056171A1 Vorrichtung und Verfahren zum Verzahnen von Werkstücken, insbesondere mit einer Stirnverzahnung Apparatus and method for cutting teeth of workpieces, in particular with a spur toothing |
| 06/14/2006 | CN1787890A A device for forming tooth form of sprocket gear for power transmission apparatus of cahinless bicycle |
| 05/30/2006 | US7052379 Methods and apparatus for machining a coupling |
| 05/26/2006 | WO2006053854A1 Device and method for providing workpieces with a toothing, particularly with a toothing on the face |
| 05/17/2006 | EP1066479A4 Face gearing with conical involute pinion |
| 05/16/2006 | US7044724 Screw compressor and method of manufacturing rotors thereof |
| 05/09/2006 | US7040845 Screw compressor and method of manufacturing rotors thereof |
| 04/05/2006 | EP0921886B1 Apparatus and method for improved precision grinding of face gears |
| 04/04/2006 | CA2366715C Tool and method for precision grinding of a conical face gear that meshes with a conical involute pinion |
| 03/09/2006 | US20060048360 Device and method for processing screw rotor, and cutting tool |
| 02/16/2006 | DE112004000526T5 Verfahren zum Herstellen von Keilzähnen an einem ring- oder scheibenförmigen Kupplungselement A method of producing splines in a ring-shaped or disc-shaped coupling element |
| 02/16/2006 | CA2575840A1 Method of manufacturing a non-circular drive element and drive element made thereby |
| 01/31/2006 | US6991522 Method of manufacturing asymmetric gear, asymmetric gear, non-circular and asymmetric gear, gear mechanism, and barrel finishing machine |
| 01/11/2006 | EP1614495A1 Device and method for processing screw rotor, and cutting tool |
| 11/16/2005 | CN1697716A Device and method for processing screw rotor, and cutting tool |
| 11/15/2005 | US6964210 Gear tooth profile |
| 09/29/2005 | WO2005089996A1 Method for cutting worm and worm gear in a worm and gear reduction unit with circulation of bearing balls and related cutting tools |