| 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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| 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 |
| 04/26/2001 | DE19948134A1 Method to operate gear-shaping machine; involves detecting radial forces at cutting ring during operation using sensors inside casing, and transmitting correction signal if force exceeds threshold |
| 04/18/2001 | EP1092495A1 Gear grinding generator with gear measuring device |
| 04/17/2001 | US6217409 Threaded grinding wheel and method of dressing |
| 03/20/2001 | US6203258 Slotted component and method of manufacture thereof |
| 01/03/2001 | EP1064116A1 Threaded grinding wheel and method of dressing |
| 10/18/2000 | EP1044749A2 Method and machine for finishing the tooth flanks of toothed workpieces |
| 09/12/2000 | US6116828 Coating with layer containing titanium, aluminum, nitrogen and carbon |
| 08/10/2000 | DE19905136A1 Correction process for grinding screw, with servo motor serving as second motor and angle of correcting grindstone measured by second angle setter |
| 06/28/2000 | EP1013369A2 Face gear manufacturing method and apparatus |
| 06/27/2000 | US6079090 Numeric-control machine tool for turning and hobbing mechanical parts |
| 06/22/2000 | WO2000035621A1 Method and machine for the machining of pre-machined toothed workpieces such as gears |
| 06/21/2000 | EP1009572A1 Method of determining cutting blade positional errors in face hobbing cutters |
| 06/15/2000 | DE19857592A1 Maschine zum Bearbeiten von vorverzahnten Werkstücken Machine for machining workpieces vorverzahnten |
| 05/23/2000 | US6065910 Gear shaper cutting method and apparatus |
| 05/02/2000 | US6056487 Compact, high through-put gear machine |
| 04/19/2000 | CN1051603C Geargraduation mechanism and it processing method |
| 03/08/2000 | CN1050080C Method and processing machine for finishing working of gears |
| 01/11/2000 | US6012972 Method for flexible profiling of grinding worms |
| 12/15/1999 | EP0907542A4 Slotted component and method of manufacture thereof |
| 10/19/1999 | US5967883 Working apparatus provided with rotary table for mass-production of gears |
| 09/23/1999 | WO1999047300A1 Threaded grinding wheel and method of dressing |
| 09/21/1999 | US5954610 Speed change gear assembly |
| 08/26/1999 | DE19829880A1 CNC machine for grinding and sharpening the tooth flanks of a spiral bevel gear |
| 07/07/1999 | CN1222118A Slotted component and method of manufacture thereof |
| 06/16/1999 | EP0921897A1 Method of forming toothed wheels and product formed thereby |
| 06/02/1999 | CN2321570Y Machine for milling extension outer cycloid conical gear |
| 04/21/1999 | CN1214778A Method of evaluating workpiece for machining |
| 04/20/1999 | US5895180 Method of determining cutting blade positional errors in face hobbing cutters |
| 04/14/1999 | EP0907542A1 Slotted component and method of manufacture thereof |
| 04/07/1999 | CN2312783Y Multifunction gear hobbing machine |
| 03/18/1999 | WO1999012688A1 Method of determining cutting blade positional errors in face hobbing cutters |
| 03/09/1999 | US5878493 Method of forming toothed wheels |
| 01/13/1999 | EP0890406A2 Gear shaper cutting method and apparatus |
| 01/13/1999 | EP0890144A1 Method of evaluating a workpiece for machining |
| 01/12/1999 | US5857896 Method and device for the fine machining of spur or helical gear wheels |
| 01/12/1999 | US5857894 Grinding machine for the grinding of spur or helica gear--wheels |
| 12/16/1998 | CN2300468Y Step cutting type high effect gear hobbing cutter |
| 10/14/1998 | EP0870565A2 Gear cutting method, apparatus and coated hob |
| 09/29/1998 | US5814956 Method and apparatus for control in power failure |
| 09/29/1998 | US5813806 Hobbing machine |
| 08/11/1998 | US5791840 Method of producing a crown wheel |
| 06/02/1998 | US5761067 Evaluating a toothed work piece for machining based on accumulated pitch variation |
| 04/14/1998 | US5738569 Threaded grinding wheel, and method of dressing |
| 04/01/1998 | EP0832716A2 Numeric-control machine tool for turning and hobbing mechanical parts |
| 03/05/1998 | WO1998008646A1 Method of forming toothed wheels and product formed thereby |
| 02/25/1998 | CN2274998Y Ripple packing series plagiodont forming machine |
| 01/02/1998 | DE19624842A1 Method for profiling single or multi=thread polishing screw |
| 12/31/1997 | WO1997049596A1 Slotted component and method of manufacture thereof |
| 10/09/1997 | WO1997037290A1 Method of evaluating a workpiece for machining |
| 10/09/1997 | CA2250033A1 Method of evaluating a workpiece for machining |
| 10/01/1997 | EP0602038B1 Method of and apparatus for machining spur and helical gears |
| 08/27/1997 | EP0693016B1 Method of producing a crown wheel |
| 07/29/1997 | US5651721 Method for the precision working of gears with an internally toothed tool, which for dressing remains in the precision working machine |
| 06/12/1997 | DE19625520C1 Precision finishing process for spur wheel gear clamped on workpiece spindle |
| 06/11/1997 | EP0496391B1 Semiconductor memory device |
| 05/28/1997 | CN2254797Y Rolling machine for making gear teeth |
| 05/14/1997 | CN2254018Y Multifunctional NC toothg rinding machine for fine module gear |
| 05/06/1997 | US5626064 Lathes for cutting straight and helical threads |
| 04/30/1997 | DE19625370C1 Grinding machine for continuous roller grinding of spur wheel gears |
| 02/19/1997 | CN1143341A Threaded grinding wheel, method of dressing, and grinding workpiece therewith |
| 02/04/1997 | US5598618 Mainrotor machining process and apparatus |
| 01/22/1997 | EP0374139B1 Multi-axis bevel and hypoid gear generating machine |
| 01/14/1997 | US5592843 Spline rack |
| 01/02/1997 | EP0750538A1 Threaded grinding wheel, method of dressing, and grinding a workpiece therewith |
| 12/11/1996 | EP0614406B1 Gear hobbing machine |
| 11/12/1996 | US5573449 Threaded grinding wheel, method of dressing, and grinding a workpiece therewith |
| 10/08/1996 | CA2123573C Gear hobbing machine |
| 10/08/1996 | CA2117072C Method of and apparatus for machining spur and helical gears |
| 08/14/1996 | DE19604237A1 Toothed rack for tooth profile cutting machine |
| 07/17/1996 | EP0627969B1 Hopping method and device by means of a milling knife |
| 07/17/1996 | CN1126809A Speed varying mechanism and its processing method |
| 05/14/1996 | US5516240 Adapted to turn workpieces |
| 01/24/1996 | EP0693016A1 Method of producing a crown wheel |
| 12/13/1995 | EP0686451A1 Device for cutting workpieces on a lathe |
| 09/21/1995 | WO1995024989A1 Threaded grinding wheel, method of dressing, and grinding a workpiece therewith |
| 09/21/1995 | CA2184997A1 Threaded grinding wheel, method of dressing, and grinding a workpiece therewith |
| 08/09/1995 | CN1106330A A method of fine machining gearwheels using an internally tothed tool which for dressing purposes remains in the fine machining machine |
| 07/12/1995 | EP0566637B1 Method for crown gear grinding by generation |
| 06/21/1995 | EP0474882B1 Numeric controller |
| 05/23/1995 | US5417528 Method for making a wobblestick |
| 05/10/1995 | CN1102368A Method and apparatus for finish working of gears |
| 05/02/1995 | US5411431 Method for crown gear grinding by generation |
| 03/22/1995 | EP0644009A2 Method for finishing gears using a tool in the shape of an internal gear, the tool remaining mounted in the finishing machine while it is being dressed |
| 03/08/1995 | CN1099851A Cycloid gullet cylindrical gear and working method |
| 01/03/1995 | US5377457 Method for generating of gear-shaped precision-working tools, in particular for regrinding shaving gears, and a gear-shaped tool, in particular a shaving gear, to which the method can be applied |
| 12/28/1994 | EP0631211A2 Method and machine tool for gear finishing |
| 11/27/1994 | CA2124270A1 Method and machine tool for finishing toothings |
| 11/24/1994 | DE4316765A1 Apparatus for producing or machining gears |
| 10/27/1994 | WO1994023880A1 Method of producing a crown wheel |
| 10/18/1994 | US5356342 Teeth for a wobblestick |
| 10/11/1994 | CA1332457C Multi-axis bevel and hypoid gear generating machine |
| 10/05/1994 | CN1093028A Two-purpose gear shaper for both straight and skewed gear teeth |
| 08/03/1994 | EP0608479A2 Method and device for making gear teeth |
| 06/09/1994 | DE4241253A1 System for chip removing machining straight and helical grooves - applies machined workpiece to stationary tool in slotting or drawing step in straight or helical line |
| 06/01/1994 | CN2166903Y Tool for rolling-off gear teeth used for lathe |
| 05/17/1994 | US5312210 Apparatus for machining teeth |
| 04/13/1994 | CN1024172C Gear grinding installation |
| 03/24/1994 | DE4231021A1 Abrasive finishing of gear-teeth using helical rotor drive - involves pendular motion with radius and angle adjusted to determine relative displacement of edges of tool and machining wheel |