| Patents for B23F 15 - Methods or machines for making gear wheels of special kinds, not covered by groups (448) |
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| 09/09/2005 | WO2005083302A1 Composite gear and method of manufacturing the same |
| 08/09/2005 | CA2356439C Method of forming tooth grooves |
| 07/27/2005 | CN1646829A Gear tooth profile |
| 07/19/2005 | CA2308998C Method for making rotors |
| 07/07/2005 | US20050147519 Screw compressor and method of manufacturing rotors thereof |
| 05/10/2005 | US6889871 Interior gear; radial projecting cylinder teeth; rotation pump; dispensing abrasives |
| 04/28/2005 | US20050089433 Screw compressor and method of manufacturing rotors thereof |
| 04/05/2005 | US6874231 Method of manufacturing a rigid internal gear of a wave gear device |
| 03/15/2005 | US6868304 Multi-function machine tool and machining method in multi-function machine tool |
| 02/09/2005 | EP1504839A2 Cutting tool for chip forming machining of the face gearing of a crown gear |
| 01/19/2005 | EP1497572A2 Gear tooth profile |
| 01/05/2005 | EP1493926A2 Method for manufacturing an internal gear pump |
| 12/16/2004 | US20040254671 Multi-function machine tool and machining method in multi-function machine tool |
| 11/25/2004 | WO2004101195A1 A device for forming tooth form of sprocket gear for power transmission apparatus of cahinless bicycle |
| 10/21/2004 | WO2004089569A1 Device and method for processing screw rotor, and cutting tool |
| 10/07/2004 | WO2004085105A1 Method to produce spline teeth on a ring- or disc-shaped coupling element |
| 09/08/2004 | CN1526502A Six-dimensional machining apparatus for spiral bevel gear |
| 08/04/2004 | CN2629885Y Helical bevel gear six-dimensional processing apparatus |
| 08/04/2004 | CN1517556A Screw compressor and manufacturing method of its rotor |
| 07/28/2004 | EP1440758A1 Methods and apparatus for machining a coupling |
| 07/28/2004 | EP1439930A2 Apparatus and methods for producing a curved tooth |
| 07/15/2004 | US20040134307 Differential housing with integrated ring gear |
| 07/08/2004 | US20040132390 Methods and apparatus for machining a coupling |
| 06/09/2004 | DE10329271B3 Manufacturing method for gerotor principle displacement unit for hydraulic steering device or hydraulic motor |
| 06/03/2004 | US20040103537 Method of manufacturing a rigid internal gear of a wave gear device |
| 06/03/2004 | US20040103536 Method of manufacturing a rigid internal gear of a wave gear device |
| 06/02/2004 | CA2451893A1 Differential housing with integrated ring gear |
| 05/25/2004 | US6739943 Machining the teeth of double sided face gears |
| 04/28/2004 | CN1491765A Composite working machine tool and working method in composite working machine tool |
| 04/28/2004 | CN1147381C Ratchet and its ratchet drive tool |
| 04/08/2004 | US20040064947 Method of manufacturing asymmetric gear, asymmmetric gear, non-circular and asymmetric gear, gear mechanism, and barrel finishing machine |
| 03/31/2004 | EP1402982A1 Multi-function machine tool and machining method in multi-function machine tool |
| 02/11/2004 | CN1137795C Method for milling teeth of tooth-variable worm |
| 01/15/2004 | WO2003089174A3 Gear tooth profile |
| 01/15/2004 | DE10227423A1 Verfahren und Vorrichtung zum Herstellen von stirnseitigen Kupplungsverzahnungen Method and apparatus for the manufacture of frontal coupling teeth |
| 11/13/2003 | US20030212153 Internally generated rotor set for low viscosity and abrasive metering applications |
| 10/30/2003 | WO2003089174A2 Gear tooth profile |
| 10/23/2003 | US20030198526 Gear tooth profile |
| 10/22/2003 | EP1355087A1 Method of manufacturing asymmetric gear, asymmetric gear, non-circular and asymmetric gear, gear mechanism, and barrel finishing machine |
| 09/09/2003 | US6617367 Inner rotor having a number of radially projecting cylindrical tooth members engaging a conjugate internally toothed outer rotor that has one more tooth than there are tooth members on the inner rotor; preparing polyurethane foams |
| 07/09/2003 | EP1325792A1 Tool and method for precision grinding of conical face gears |
| 05/08/2003 | WO2003024652A3 Apparatus and methods for producing a curved tooth |
| 05/08/2003 | US20030086769 Apparatus and methods for producing a curved tooth |
| 03/27/2003 | WO2003024652A2 Apparatus and methods for producing a curved tooth |
| 03/27/2003 | CA2460164A1 Apparatus and methods for producing a curved tooth |
| 03/19/2003 | CN1103261C Elliptic gear gear shapping machine and method for processing elliptic gear |
| 02/18/2003 | US6520842 Method of forming tooth grooves |
| 01/22/2003 | CN1392017A Method for producing timing gear of environment protecting type engine |
| 01/22/2003 | CN1392016A Method for producing timing gear of diesel oil and natural gas double fuel engine |
| 12/12/2002 | US20020184766 Method of manufacturing a rigid internal gear of a wave gear device |
| 09/18/2002 | EP1240432A1 Internally generated rotor set for low viscosity and abrasive metering applications |
| 06/20/2002 | US20020077030 Machining the teeth of double sided face gears |
| 06/13/2002 | DE10054795A1 Continuous cutting or roller milling teeth in double sided crown wheels, involves altering angular and spatial position of tool in between milling two sets of teeth |
| 06/06/2002 | WO2002044590A1 Method of manufacturing asymmetric gear, asymmetric gear, non-circular and asymmetric gear, gear mechanism, and barrel finishing machine |
| 06/06/2002 | US20020067966 Method of forming milled tooth of variable tooth worm |
| 05/28/2002 | US6394718 Generation of periodic structures on rotationally symmetrical components |
| 05/21/2002 | US6390894 Face gear manufacturing method and apparatus |
| 05/02/2002 | EP0921886A4 Apparatus and method for improved precision grinding of face gears |
| 03/21/2002 | US20020034926 Method of forming tooth grooves |
| 03/06/2002 | EP1184122A1 Method of forming tooth grooves |
| 12/25/2001 | US6332271 Method for making rotors |
| 12/12/2001 | EP1097018B1 Method and device for creating undercuts on tooth flanks of internally or externally geared gear blanks |
| 06/21/2001 | DE19959836A1 Verfahren zum Herstellen einer balligen Verzahnung mit Evolventeneigenschaften und Wellen mit einer derartigen Verzahnung A method of producing a crowned teeth, and with Evolventeneigenschaften waves with such a toothing |
| 06/14/2001 | WO2001041961A1 Method for producing a crowned toothing with involute properties and shafts with such toothings |
| 06/13/2001 | EP1106290A2 Method and divice for creating undercuts on thoothflanks of internally or externally geared gear blanks |
| 05/30/2001 | CN1296870A Method for milling teeth of tooth-variable worm |
| 05/17/2001 | DE19953089A1 Erzeugung periodischer Strukturen auf rotationssymmetrischen Bauteilen Generation of periodic structures on rotationally symmetrical components |
| 05/09/2001 | EP1097772A2 Producing periodical structures on rotationally symmetric workpieces |
| 05/09/2001 | EP1097018A2 Method and device for creating undercuts on tooth flanks of internally or externally geared gear blanks |
| 05/09/2001 | CN1294038A Slotting machine of elliptic gear and technology for machining elliptic gear |
| 05/08/2001 | US6227775 Internal gears and splines and milling method and apparatus for manufacturing same |
| 03/29/2001 | WO2001021957A1 Internally generated rotor set for low viscosity and abrasive metering applications |
| 03/29/2001 | CA2385184A1 Internally generated rotor set for low viscosity and abrasive metering applications |
| 01/10/2001 | EP1066479A1 Face gearing with conical involute pinion |
| 11/30/2000 | DE19924616A1 Verfahren zur Herstellung von Rotoren A process for the production of rotors |
| 11/29/2000 | EP1055799A2 Method of manufacturing of screw machine rotors |
| 08/16/2000 | CN1262981A Ratchet and its ratchet drive tool |
| 06/28/2000 | EP1013369A2 Face gear manufacturing method and apparatus |
| 04/25/2000 | CA2066595C Hob for generating face gears |
| 04/20/2000 | WO2000005023A3 Method and device for creating undercuts on tooth flanks of internally or externally geared gear blanks |
| 02/03/2000 | WO2000005023A2 Method and device for creating undercuts on tooth flanks of internally or externally geared gear blanks |
| 01/27/2000 | DE19933137A1 Machining undercuts into flanks of teeth on internally or externally toothed work wheels, using cutting edges on teeth in toothed work wheel |
| 10/14/1999 | WO1999051890A1 Face gearing with conical involute pinion |
| 08/24/1999 | US5941124 Face gearing with conical involute pinion |
| 07/14/1999 | EP0796163B1 Method for manufacturing a hob cutter for machining face gears |
| 06/16/1999 | EP0921886A1 Apparatus and method for improved precision grinding of face gears |
| 12/08/1998 | US5845533 Gear transmission of a cylindrical pinion with a face gear, face gear used in said transmission and method and tool for making the face gear |
| 10/20/1998 | US5823857 Apparatus and method for precision grinding of face gears |
| 09/08/1998 | US5803794 Combined grinding machine for providing an internal spline |
| 08/11/1998 | US5791840 Method of producing a crown wheel |
| 07/08/1998 | EP0787055B1 Gear transmission of a cylindrical pinion with a face gear, face gear used in said gear transmission, and method and tool for making the face gear |
| 03/03/1998 | US5722164 Method of making a toothed gear |
| 02/24/1998 | US5720584 Tool for producing a crown wheel which can mesh with a pinion with oblique teeth, and method of producing such a crown wheel |
| 01/22/1998 | WO1998002268A1 Apparatus and method for improved precision grinding of face gears |
| 10/29/1997 | CN2265866Y Mechanical holder milling cutter specially adapted for working profile of rotor of roots pump |
| 10/22/1997 | EP0699114B1 Tool for producing a crown wheel which can mesh with a pinion with oblique teeth, and method of producing such a crown wheel |
| 10/15/1997 | CN1036150C Cylindrical gearing pair with curved tooth face, and processing method and equipment thereof |
| 09/24/1997 | EP0796163A1 Hob cutter for machining face gears, and method for manufacturing such a tool |
| 08/27/1997 | EP0693016B1 Method of producing a crown wheel |
| 08/06/1997 | EP0787055A1 Gear transmission of a cylindrical pinion with a face gear, face gear used in said gear transmission, and method and tool for making the face gear |