| Patents for B23F 1 - Making gear teeth by tools of which the profile matches the profile of the required surface (496) |
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| 10/01/1997 | EP0602038B1 Method of and apparatus for machining spur and helical gears |
| 04/29/1997 | US5624301 Method and mechanism for the grinding of groove-shaped external profiles on work pieces |
| 02/19/1997 | EP0758567A1 Method for working members divided into two each having rack teeth |
| 01/14/1997 | US5592843 Spline rack |
| 10/08/1996 | CA2117072C Method of and apparatus for machining spur and helical gears |
| 09/06/1996 | WO1996026803A1 Method for working members divided into two each having rack teeth |
| 08/14/1996 | DE19604237A1 Toothed rack for tooth profile cutting machine |
| 01/17/1996 | EP0633820B1 Method and device for grinding grooved external surfaces of a workpiece |
| 11/16/1995 | WO1995030507A1 Device for manufacturing profiled workpieces, particularly gearwheels |
| 06/27/1995 | CA2112213C Single-point loading/unloading system for a dual ram rotary blind spline broaching machine |
| 05/09/1995 | US5413520 Method and apparatus for fine machining of spur gears |
| 02/02/1995 | WO1995003149A1 Method of forming and grinding helical gear |
| 12/08/1994 | DE4418632A1 Clutch sleeve and method for its manufacture |
| 05/31/1994 | US5315750 Loading/unloading system for broaching machine |
| 03/30/1994 | CN2159844Y Gear mill and gear grading mechanism |
| 02/02/1994 | EP0581125A1 Form grinding tool for machining of gears |
| 10/27/1993 | CN1022549C Tooth shape regrinding method of gear shaving cutter blade |
| 10/14/1993 | WO1993019881A1 Method and device for grinding grooved external surfaces of a workpiece |
| 09/30/1993 | DE4210710A1 Verfahren und Einrichtung zum Schleifen rillenförmiger Außenprofile eines Werkstückes Method and apparatus for grinding groove-shaped outer profile of a workpiece |
| 09/16/1993 | DE4207511A1 Grinding process for correcting involute profile of internal gear - depends on use of grinding tool in form of convex globoid worm which is meshed with rack formed dresser to produce corrected involute and then used to grind gear |
| 08/18/1993 | CN2140276Y Skewed tooth spiral agle regulating mechanism for gear shaper |
| 04/14/1993 | EP0537107A1 Machine for finishing gears and method for dressing an abrasive tool |
| 04/01/1993 | DE4132487A1 Fly cutter type spline milling machine - has cutter slightly skew to cutter rotational axis to produce virtual clearance between cutter and flanks of slot |
| 03/18/1993 | WO1993004810A1 Method of and apparatus for machining spur and helical gears |
| 01/05/1993 | US5175962 Method of and apparatus for machining spur and helical gears |
| 12/30/1992 | EP0520122A1 Pot-broach vertical broaching machine |
| 12/02/1992 | EP0515791A2 Device and method for shaving gears having electronically coupled individual drives for work gear and tool |
| 11/26/1992 | DE4129024A1 Gear wheel precision profiling machine - has separate electric drives for gear wheel and milling wheel with electronic coupling |
| 11/11/1992 | EP0512205A2 Machine for working rotating workpieces |
| 08/25/1992 | US5140781 Gear finishing process |
| 06/17/1992 | DE4122459C1 Straight tooth bevel gear cutting machine - has rotary tool with bell-shaped body with inwards pointing blades at edge region |
| 04/08/1992 | EP0478705A1 Broaching machine |
| 11/19/1991 | US5065546 Grinding wheel for producing internal profilings |
| 09/12/1991 | DE4005104A1 Copying mechanism for milling-cutter grinding - has lead-screw with trapezium profile inclined to slide movement direction |
| 03/13/1991 | EP0416151A1 Grinding head for producing internal profiles |
| 01/10/1991 | DE3920483A1 Raeummaschine Broaching Machine |
| 12/27/1990 | WO1990015685A1 Broaching machine |
| 11/20/1990 | US4971602 Method for grinding gear teeth |
| 09/04/1990 | US4954027 Process for the discontinuous profile grinding or profile milling of gear wheels |
| 10/04/1989 | CN1035973A Shape repair grinding method of gear shaving cutter blade |
| 05/02/1989 | US4826369 Apparatus for machining splines on a tubular member |
| 03/15/1989 | EP0227663B1 Apparatus for machining teeth on gear wheels |
| 01/17/1989 | US4798504 Workpiece machining apparatus and method |
| 05/19/1988 | WO1988003450A1 Method of producing rack-and-pinion steering arrangements with a variable gear ratio |
| 05/18/1988 | EP0267399A1 Method of producing rack-and-pinion steering arrangements with a variable gear ratio |
| 03/15/1988 | US4730963 Broaching machine for external broaching of rotor |
| 02/02/1988 | US4722238 Rack and pinion gear |
| 12/22/1987 | US4714387 Gear cutting process |
| 10/06/1987 | US4697387 Device for grinding tooth profiles of a rotating toothed workpiece |
| 07/08/1987 | EP0227663A1 Apparatus for machining teeth on gear wheels. |
| 03/25/1987 | CN85100221A No-gear changed machine tools for making gears |
| 03/17/1987 | US4650378 Method for machining a gear by means of a rotating gear-type tool |
| 02/10/1987 | US4641406 Method of forming a rack member |
| 01/27/1987 | US4638599 Gear grinding machine for radial or helical spur gears |
| 01/13/1987 | US4635404 Apparatus for machining a spur gear by means of a rotating gearlike tool |
| 01/08/1987 | DE3616175A1 Apparatus for machining a gear and method of dressing the tools of this apparatus |
| 12/16/1986 | CA1215257A1 Process and product for increasing speed and precision of gear manufacture |
| 09/16/1986 | CA1211306A1 Method of generating involute tooth forms with a milling cutter |
| 09/02/1986 | CA1210620A1 Die hobber |
| 06/10/1986 | CN85108223A Making gear method by removal of material |
| 05/27/1986 | CA1204925A1 Method of shaping a helical gear, and a pinion cutter used therein |
| 05/13/1986 | US4588336 Rack and pinion gear and process of fabrication |
| 03/12/1986 | EP0174280A1 Gear tooth, method and machine therefor |
| 02/27/1986 | WO1986001136A1 Machining arrangement |
| 12/24/1985 | US4559744 Process for machining a spur gear by means of a rotating gear-like tool |
| 05/21/1985 | US4518289 Pot broach |
| 04/30/1985 | CA1186151A1 Multistation grinding machine |
| 04/23/1985 | US4512694 Method and apparatus for alignment of gearing |
| 12/20/1984 | WO1984004894A1 Machine for hubbing spur or helical tooth gears |
| 12/19/1984 | EP0128854A1 Gear-generating machine for grinding spur gears having straight or helical teeth |
| 05/15/1984 | CA1167305A1 Pot broach machine with turn-over loader |
| 12/27/1983 | US4422265 Multistation grinding machine |
| 12/06/1983 | CA1158077A1 Method and apparatus for making rotary die racks |
| 09/21/1983 | EP0088807A1 Gear making tool for milling gears and other workpieces |
| 09/20/1983 | US4405270 Pot broach machine with turn-over loader |
| 08/30/1983 | US4401401 Method and apparatus for broaching |
| 08/16/1983 | CA1151923A1 Tapered spline and method of manufacturing same |
| 02/08/1983 | US4372085 Apparatus for form-grinding the tooth-flanks of a cylindrical gearwheel |
| 12/21/1982 | US4364204 Apparatus for machining a number of workpieces with one tool |
| 08/10/1982 | US4343563 Tapered spline and method of manufacturing same |
| 11/26/1981 | WO1981003296A1 A tapered spline and method of manufacturing same |
| 11/25/1981 | EP0040505A1 Method of forming a spline and a splined connection |
| 11/10/1981 | US4299062 Device for the production of gear wheels |
| 08/11/1981 | US4282782 Method of making rotary die racks |
| 02/10/1981 | CA1095252A1 Method and apparatus for the manufacture of gearwheels |
| 01/14/1981 | EP0022337A1 Method for making rotary die racks |
| 01/13/1981 | US4244668 Apparatus for forming internal teeth at large workpieces at a gear shaper |
| 10/28/1980 | CA1088359A1 Pot broach |
| 12/12/1979 | EP0005831A1 Device for making internal teeth on large workpieces with a gear slotting machine |
| 08/21/1979 | US4164891 Machine for simultaneously milling of several grooves in rotating workpieces |
| 12/26/1978 | US4130967 Precision gear crown grinding machine |
| 07/25/1978 | US4102244 Pot broach |
| 05/23/1978 | US4090330 Correction device for the rolling type tension on a gear grinding machine |
| 12/27/1977 | US4065222 Pot broach |
| 06/07/1977 | US4027574 Pot broaching machine |
| 06/01/1976 | US3960055 Shaving cutter for finishing gears |