| Patents for B24B 9 - Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor (9,298) |
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| 04/29/1992 | EP0482496A1 Machine for machining edges, particularly of glass plates |
| 04/29/1992 | EP0374151B1 Brush head for trimming or brushing machines |
| 04/28/1992 | CA1299370C Machine for tapering pipe ends |
| 04/23/1992 | DE4130244C1 Grinding support rims of plates - involves grinding belt moving over support table |
| 04/21/1992 | US5105583 Workpiece deburring method and apparatus |
| 04/15/1992 | EP0381675B1 Skate sharpening device |
| 04/14/1992 | US5103663 Dedimpler and deburring apparatus |
| 04/01/1992 | EP0478518A1 Improvement and enhancing of grinding wheels for the machine working of marble, granite and the like |
| 03/31/1992 | US5099617 Method and apparatus for bevelling interior angles of sheets of colored or non-colored plain glass, plate glass or flattened glass, and the product obtained |
| 03/31/1992 | US5099537 Combination cleaner and reamer for tubes and fittings |
| 03/24/1992 | US5097631 Circular edger attachment for vertical glass edger |
| 03/24/1992 | US5097630 Specular machining apparatus for peripheral edge portion of wafer |
| 03/17/1992 | US5095726 Dedimpler and deburring apparatus |
| 03/10/1992 | US5094037 Edge polisher |
| 03/05/1992 | DE4126313A1 Spectacle lens grinding and polishing machine - performs correction for difference between spacing of lens centres and measured pupil spacing |
| 03/04/1992 | CN2097713U Axial reciprocating planetary grinding head |
| 02/20/1992 | DE4104459C1 Grinding machine for plates - uses flexible grinding belts engaging support rings on bottom of plates |
| 02/11/1992 | US5087307 Method of manufacturing semiconductor substrate |
| 02/06/1992 | DE4024272A1 Work holder for spectacle frames - has straight edge locating against upper frame edges and double-armed lever pins against lower edges |
| 02/04/1992 | US5085011 Method and apparatus for mounting and faceting gemstones |
| 01/28/1992 | US5083403 Workpiece supporting fixture for use with an abrasion tool to form circular workpieces |
| 01/23/1992 | WO1992000831A1 Numerically controlled grinding machine for glass plate |
| 01/14/1992 | US5079876 Method and installation for processing glass plates |
| 01/08/1992 | EP0465357A1 Device for machining contours in soft material and automatic machining process making use of such a device |
| 01/02/1992 | DE4019866A1 Scanning and storing data for spectacle frame aperture or template - using video scanner system with angle transducer and evaluation electronics |
| 01/01/1992 | CN2091741U Mirror polisher |
| 01/01/1992 | CN1057421A Combined sleeve used for grinding glass screen of kinescope and its manufacturing method |
| 12/31/1991 | US5076025 Land grinder mount |
| 12/31/1991 | US5076021 Flat grind stage assembly for an automatic edge grinder |
| 12/24/1991 | US5074079 Automatic adjusting device for revolution speed of rotary table of glass edge chamfering machine |
| 12/17/1991 | US5072549 Method of cutting gemstones and product |
| 12/11/1991 | CN2090300U Burr removing machine for pressure chamber of oil injector |
| 12/04/1991 | CN2089861U Automatic ground machine with multiple working position and multiple abrasive wheel for cement |
| 11/26/1991 | US5067860 Apparatus for removing burrs from workpieces |
| 11/21/1991 | EP0457364A2 Automatic edge grinder |
| 11/19/1991 | US5065651 Method and machine for finishing commutators |
| 11/14/1991 | DE4015052A1 Machine for grinding edges of blanks of pieces of cutlery - has turntable to bring blanks to grinding belts |
| 11/05/1991 | US5062177 Brush head for deburring and brushing machines |
| 11/03/1991 | CA2034275A1 Cutting tool |
| 10/30/1991 | CN1055688A Lens edging system with programmable feed and speed control |
| 10/29/1991 | CA2041185A1 Bottle mouth top surface polishing apparatus |
| 10/22/1991 | US5058328 Wafer centering assembly |
| 10/22/1991 | US5058324 Gem stone facet forming apparatus |
| 10/17/1991 | DE4016793C1 Grinding edges of glass plate - involves several frusto=conical grinding wheels with dia increasing in direction of plate motion |
| 10/16/1991 | EP0451333A2 Apparatus for grinding the edge of a glass sheet |
| 10/15/1991 | US5056270 Method and apparatus for grinding lenses |
| 10/15/1991 | US5056265 Tube end abrading tool |
| 10/09/1991 | EP0449920A1 Grinding apparatus |
| 10/02/1991 | DE4107509A1 Lens shape measurement device for automatic spectacle lens manufacture - contains contact measurement element with position sensor and arithmetic unit |
| 10/02/1991 | DE4010436A1 Grinding machine bevelling edges of glass plate - has bevels ground in gap of opposed grinding wheels transversing along edge at skew angle |
| 10/02/1991 | DE4009942A1 Profile grinding of edge of plastic spectacle lens - uses dry grinding for initial shaping with wet grinding for finishing stage to give smooth surface finish |
| 10/01/1991 | US5053971 Method and apparatus for edging an optical lens |
| 09/26/1991 | DE4012658A1 Edge grinding machine for spectacles lenses - uses templet and follower to control traverse of dressing tool across grinding wheel face |
| 09/19/1991 | DE4107894A1 Measuring appts. for spectacles frame - has three motors for relative movement between frame holding pins and detecting head in form of disc-shaped probe |
| 09/11/1991 | EP0445568A1 Process for manufacturing of a grinding wheel for grinding spectacle lens edges |
| 09/11/1991 | EP0445404A2 Device for making drilled holes with undercutting |
| 09/05/1991 | DE4006660A1 Grinding disc for profiling spectacle lens edges - has plastic body with outer abrasive edge of diamond particles in metal, e.g. bronze, and a supporting copper ring |
| 09/04/1991 | EP0444902A2 Lens edging system |
| 09/04/1991 | CN2083985U Hand edge grinding block for glass |
| 09/03/1991 | US5045505 Method of processing substrate for a beveled semiconductor device |
| 09/03/1991 | US5044843 Cutting tool |
| 09/03/1991 | US5044123 Concave-convex faceting method and apparatus |
| 09/03/1991 | US5044122 Method and apparatus for beveling an inside edge of a glass article |
| 08/22/1991 | DE4032948C1 Short circuit strips on IC packages, removing machine - has workpiece holder which slides parallelly and perpendicularly to shaft of grinding wheel |
| 08/21/1991 | EP0442852A2 Device for deburring and beveling flat pieces, with a variable beveling angle |
| 08/20/1991 | US5040342 Method and apparatus for processing glass sheets |
| 08/14/1991 | EP0441075A2 Making glass-sheets on a line comprising several working stations |
| 08/13/1991 | US5038525 Pipe polishing apparatus and method |
| 08/08/1991 | DE4003000A1 Adjustment of spectacle lens in frame - having frame details called from memory to provide graphics pattern print |
| 08/06/1991 | US5036628 Seal assembly for a wafer grinding machine |
| 08/06/1991 | US5036624 Notch grinder |
| 07/25/1991 | DE4023898C1 Grinding machine for spectacle lenses - has self-generated air curtain shielding face of observation window |
| 07/17/1991 | EP0437288A2 Apparatus for cutting and grinding glass blanks |
| 07/17/1991 | EP0437018A2 A wafer centering assembly |
| 07/16/1991 | US5032414 Process for stacking individual one piece receptacles |
| 07/16/1991 | US5032413 Process for testing individual one piece receptacles |
| 07/02/1991 | US5028182 Vacuum absorption device for use in glass sheet chamfering apparatus |
| 07/02/1991 | US5027561 Pattern simulator for use with a grinding machine, in particular a machine for grinding eyeglass lenses |
| 07/02/1991 | US5027492 Device for fitting temporary securing means to a workpiece |
| 06/26/1991 | EP0338015B1 Method and apparatus for cutting and deburring tubes |
| 06/26/1991 | EP0316451A4 Device for abrasive machining |
| 06/19/1991 | EP0433114A1 Method and apparatus for measuring the edge thickness of a spectacle lens |
| 06/13/1991 | DE3940397A1 Deburring holes in ribbed plates - with workpiece on table reciprocating under two abrasive brushes rotating in opposite directions |
| 06/11/1991 | US5022187 Device for regulating the grinding weight for an ophthalmic glass grinding machine |
| 06/06/1991 | DE4033683A1 Edge modification of semiconductor wafers before epitaxial deposition - by grinding edges with profiled tool to form rounded edge with tapering planes merging with surfaces, an epi-crown being deposited |
| 06/06/1991 | DE4003001C1 Measurement disc for spectacles mfr. - is made using stylus fitted to tool carrier on lens edging device |
| 05/22/1991 | CN2077351U Electric angle polishing machine |
| 05/16/1991 | DE4003002A1 Process and holder for production of spectacles lens - has holder in three parts enabling lens blank to be completely processed without re-mounting |
| 05/14/1991 | US5015090 Centering apparatus for a gemstone |
| 04/24/1991 | EP0424207A1 Contour reading apparatus, especially for frame of eyeglasses |
| 04/23/1991 | US5009039 Skate sharpening device |
| 04/23/1991 | US5009038 Automatic chamfering machine |
| 04/10/1991 | EP0421618A2 Compliant mount and mechanical stop |
| 04/09/1991 | US5005320 Method and apparatus for tapering an end of an elongated object |
| 04/09/1991 | US5005318 Method and apparatus for cutting glass blanks |
| 04/03/1991 | EP0420754A1 Control device for a movable part, especially for a pitching device |
| 04/02/1991 | US5003791 Principles and appliances for the cutting of spherical-faceted gems and gems thus obtained |
| 03/21/1991 | WO1991003794A1 Method and apparatus for edging an optical lens |
| 03/20/1991 | EP0418102A2 Gemstone polishing table |
| 03/20/1991 | EP0418101A2 Dop |