| Patents for B23F 5 - Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made (1,441) |
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| 02/09/1994 | CN2155286Y Cycloidal gear shaper |
| 01/13/1994 | DE4221427A1 Accurate cutting or shaping of internal or external evolute gear teeth - involves tool shaped as globoidal worm gear for plastic deformation by rolling, grinding or cutting |
| 12/02/1993 | DE4315752A1 Tooth profile machining for sprockets of roller chains - uses cylindrical tools for machining teeth of sprocket rotatable about its rotary axis |
| 12/01/1993 | CN2147922Y Universal hydraulic knurling and hobbing machine |
| 11/09/1993 | US5260879 Numerical control apparatus |
| 10/28/1993 | DE4317306A1 Honing process and machine for finishing gear teeth - has abrasive gear hone in mesh with workpiece gear and electronically coupled spindles so that pitch errors in gear can be measured and corrected by modifying relative speeds |
| 10/27/1993 | EP0566637A1 Method for crown gear grinding by generation. |
| 09/15/1993 | EP0560065A1 Device for machining cylindrical or bevel gears |
| 09/07/1993 | CA1322035C Multi-axis bevel and hypoid gear generating machine |
| 09/02/1993 | WO1993016832A1 Hopping method and device by means of a milling knife |
| 08/24/1993 | US5239509 Semiconductor memory device |
| 07/20/1993 | US5228814 Gear hobbing machine |
| 07/08/1993 | WO1993010932A3 Gear hobbing machine |
| 06/30/1993 | CN2137186Y Gear machining device for planer |
| 06/10/1993 | WO1993010932A2 Gear hobbing machine |
| 05/11/1993 | US5209333 Tooth pitch deviation shift mechanism for a gearbox |
| 04/27/1993 | US5205806 Composite-machining machine tool |
| 03/18/1993 | WO1993004810A1 Method of and apparatus for machining spur and helical gears |
| 02/17/1993 | CN1068985A Processing method for gear ratio rack |
| 01/05/1993 | US5175962 Method of and apparatus for machining spur and helical gears |
| 12/29/1992 | US5174699 Method for finishing gears via skiving |
| 09/23/1992 | CN1018341B Circular arc gear hob |
| 08/26/1992 | EP0500104A2 Composite-machining machine tool |
| 07/29/1992 | EP0496391A2 Semiconductor memory device |
| 07/23/1992 | WO1992011967A1 Method for crown gear grinding by generation |
| 05/27/1992 | CN2105356U Gear shaping machine for straight tooth and conical tooth |
| 03/18/1992 | EP0474882A1 Numeric controller |
| 10/29/1991 | US5061128 Mechanism for the drive of a tool spindle |
| 10/16/1991 | CN1014304B Plane envelop method to fabricate tooth profile and gear grinder |
| 10/03/1991 | WO1991014979A1 Numeric controller |
| 10/01/1991 | US5052867 Method of producing profiled workpieces |
| 05/28/1991 | US5018913 Device for controlling the tool position depending on the stroke position |
| 05/14/1991 | US5014467 Method and machine for the discontinuous generating grinding with indexing |
| 04/18/1991 | WO1991004830A1 Mainrotor machining process and apparatus |
| 03/13/1991 | CN1049813A Circular arc gear hob and gear without runing-in tolerance |
| 01/01/1991 | US4981402 Multi-axis bevel and hypoid gear generating machine |
| 11/29/1990 | DE3915976A1 Verfahren zur schlichtbearbeitung der flanken von zylinderraedern durch waelzschaelen sowie vorrichtung zur durchfuehrung eines solchen verfahrens Method for simply editing the flanks of cylindrical gears by skiving and device for carrying out said method |
| 10/09/1990 | US4961289 Machine tool for fine machining the tooth flanks of pretoothed gearwheels |
| 09/11/1990 | US4955769 Gear coupling and hub |
| 09/11/1990 | US4955768 Fixture for making a gear |
| 09/11/1990 | US4955163 Method for production of involute gear tooth flanks |
| 09/04/1990 | US4954028 Process for making, finishing crown wheels |
| 08/08/1990 | CN1009066B Forming and grinding apparatus for machining cycloidal gears |
| 07/11/1990 | CN2059115U Working equipment for big module straighttooth and conical gear |
| 06/27/1990 | EP0374139A1 Multi-axis bevel and hypoid gear generating machine. |
| 06/27/1990 | CN1008548B Processing method for composite deflecting tooth-profile of cylindrical gear |
| 06/20/1990 | CN1008469B Long-and-short-range involute equidistant-curve tooth-profile of gear |
| 06/05/1990 | US4930950 Apparatus for adjusting the drums of a bevel-gear cutting machine |
| 04/11/1990 | CN2055758U Variable tooth type bulbous teeth bit grinding machine |
| 03/15/1990 | DE3829604A1 Hobbing cutter and method of producing tooth systems |
| 02/28/1990 | EP0355318A1 Device for setting the cradle of a bevel gear manufacturing machine |
| 01/18/1990 | DE3922241A1 Method and apparatus for the automatic fine machining of the tooth flanks of a rough-machined gear |
| 10/10/1989 | US4872791 Method of forming crowned gear teeth |
| 09/13/1989 | EP0331869A2 Device for controlling a tool's position in dependence upon the stroke position |
| 09/12/1989 | US4865497 Method for machining the flanks of gears by skiving and apparatus for implementing such method |
| 08/31/1989 | DE3805360A1 Method of producing the rolling movement for the manufacture of tooth flanks on bevel gears |
| 08/30/1989 | EP0330289A1 A process for the making and/or finishing of crown wheels |
| 08/23/1989 | CN1034882A Forming andgrinding apparatus for machining cycloidal gears |
| 07/25/1989 | US4850155 Method for machining gearwheels |
| 07/18/1989 | US4848040 Apparatus for grinding shaving cutter teeth, and method of same |
| 07/12/1989 | EP0323868A1 Process for producing a crown wheel |
| 05/30/1989 | US4833836 Process for grinding a gear tooth blank to form an involute gear tooth |
| 05/23/1989 | US4831788 Method and device for controlling the rolling drive of a gear grinding machine |
| 05/02/1989 | US4825715 Gear transmission and method of machining its teeth |
| 04/19/1989 | EP0311786A2 Method and machine for discontinuous generating grinding with indexing |
| 04/06/1989 | DE3731057A1 Tooth system for shafts, gears, coupling parts, hubs or the like |
| 03/28/1989 | US4815239 Apparatus for production of involute gear tooth flanks |
| 03/14/1989 | US4811528 Method for production of envolute gear tooth flanks |
| 03/09/1989 | WO1989001838A1 Multi-axis bevel and hypoid gear generating machine |
| 03/08/1989 | CN1031499A Large gear grinder using envelope method to fabricate tooth profile |
| 02/22/1989 | CN2032921U Carbon nitrogen permeating gear splined hole push-type broach device |
| 02/15/1989 | CN2032519U Gear planer with fixed spindle |
| 01/25/1989 | CN1030542A Gear grinding installation |
| 01/25/1989 | CN1030541A Generating apparatus of drum gear |
| 11/30/1988 | EP0292642A2 Method and device for controlling the generating mechanism of a gear-grinding machine |
| 11/22/1988 | US4786218 Machine tool comprising a tool driven in the axial direction by a hydraulic lifting cylinder, in particular a gear shaper machine |
| 10/12/1988 | CN87102159A Gear cutter for bevel gear with pitch arc of constricted arc tooth |
| 09/14/1988 | EP0282046A2 Machine tool for finishing the tooth flanks of roughly cut gears |
| 09/07/1988 | CN88101439A Processing method for composite deflecting tooth-profile of cylindrical gear |
| 08/17/1988 | EP0278512A1 Method for the machining of gears |
| 06/22/1988 | EP0271844A2 Gear transmission with variable pressure angle and method of machining gear tooth profiles with a variable pressure angle |
| 06/14/1988 | US4750848 Involute gear cutter |
| 05/17/1988 | US4744179 Process for controlling tool infeed at machining start of a gear cutting machine |
| 04/27/1988 | CN87100119A Long-and-short-range involute equidistant-curve tooth-profile of gear |
| 04/26/1988 | US4739587 Rolling drive for a gear-grinding machine |
| 03/23/1988 | CN87203831U Hobbing device for drum gears |
| 02/17/1988 | CN87201629U Gear milling equipment for hard tooth flank of helical bevel gear |
| 02/04/1988 | DE3701691A1 Process for producing a furnace component |
| 01/19/1988 | CA1231572A1 Method for chamfering the edges of gear teeth |
| 01/14/1988 | DE3718163A1 Attachment for adjusting a stroke slide of a gear grinding machine |
| 01/14/1988 | DE3718162A1 Attachment for adjusting a stroke slide of a gear grinding machine |
| 12/23/1987 | EP0250312A1 Method of making pinions of which the tooth-driving surfaces form a sharp-edged angle |
| 12/08/1987 | US4712048 Process and apparatus for controlling the spindle speed of a gear cutting machine |
| 11/24/1987 | US4708544 Machine tool controller |
| 10/29/1987 | DE3712454A1 Method of compensating for gear tooth errors |
| 10/29/1987 | DE3712366A1 Method of generating gears with eccentric pitch circle position |
| 10/06/1987 | US4697387 Device for grinding tooth profiles of a rotating toothed workpiece |
| 09/22/1987 | US4695209 Helical guide apparatus usable for a gear shaper |
| 09/17/1987 | DE3705799A1 Device for generating the rolling movement of a workpiece |
| 08/06/1987 | DE3632260A1 Method and apparatus for the production of helical toothing by cold forming |