Patents for B24D 7 - Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor (3,719) |
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10/27/1992 | CA1309258C Composite grinding wheel |
10/20/1992 | US5156071 Chain saw sharpener with built-up grinding tool |
10/06/1992 | US5152106 Cut-off wheel having disposable mounting hub |
09/30/1992 | CN2117233U Grinding handle for bicycle valve |
09/29/1992 | US5151584 Method and apparatus for endpoint detection in a semiconductor wafer etching system |
09/29/1992 | US5150546 Disc sander implement |
09/22/1992 | US5148634 Scissor sharpening apparatus with magnetic guide |
09/08/1992 | US5144773 Honing or grinding tool and measuring device for measuring wear |
09/03/1992 | WO1992014580A1 Method of and machine for grinding a workpiece |
09/03/1992 | CA2104479A1 Method of and machine for grinding a workpiece |
08/19/1992 | EP0499334A1 Surface processing device |
08/11/1992 | US5137098 Diamond tool for drilling and routing |
08/05/1992 | EP0497008A2 Process and apparatus for grinding cams or the like |
08/04/1992 | CA1305860C Disposable grinding apparatus having an integral mounting hub |
08/02/1992 | CA2060149A1 Method and means for grinding cams and the like |
07/29/1992 | EP0477253A4 Hollow drill. |
07/14/1992 | US5129190 Machining and apparatus |
07/08/1992 | EP0493785A1 Scissors sharpening apparatus |
06/17/1992 | DE4039805A1 Wheel profile permitting grinding on both sides of collar - consists of two pairs of bevel segments dressed symmetrically about middle plane of wheel |
05/30/1992 | WO1992009395A1 Tool for producing crown wheels, and method for producing such a tool |
05/30/1992 | CA2096024A1 Tool for producing crown wheels, and method for producing such a tool |
05/12/1992 | US5111624 Method and apparatus for limiting the dispersion of rail grinding machine spark and dust residue |
05/06/1992 | EP0483561A1 Machining method and apparatus |
04/30/1992 | DE4115666C1 Grinding wheels with variable spacing - are coaxial and rotate together and are urged apart by spring |
04/29/1992 | CN2102821U Sand plate with hole |
04/08/1992 | EP0478912A2 Working disc for lapping, honing and polishing machine |
04/01/1992 | EP0478518A1 Improvement and enhancing of grinding wheels for the machine working of marble, granite and the like |
04/01/1992 | EP0477253A1 Hollow drill. |
03/25/1992 | EP0476272A1 Rotary polishing tool |
03/10/1992 | US5094039 Gear type tool |
03/03/1992 | US5092082 Apparatus and method for laminated grinding disks employing vibration damping materials |
02/25/1992 | US5090848 Device for producing drilled holes with undercut |
02/11/1992 | US5086592 Grinding tool and method of using same |
02/06/1992 | DE4024399A1 Drilling tool with hardened head - is formed as forward tapered truncated cone with grooves for removal of waste |
01/29/1992 | EP0273055B1 Machine and method of grinding molding die |
01/22/1992 | CN2093719U Abrasive disk with spiral slots |
01/21/1992 | US5082070 Hollow drill bit |
01/14/1992 | US5079875 Segmentee grinding wheel |
12/31/1991 | US5077464 Method and apparatus for endpoint detection in a semiconductor wafer etching system |
12/31/1991 | US5076024 Disk polisher assembly |
12/31/1991 | US5076023 Polishing-grindstone mount base assembly |
12/26/1991 | WO1992000163A1 Disposable finishing article having an integral mounting hub including an improved metal pressure cap |
12/26/1991 | CA2087031A1 Disposable finishing article having an integral mounting hub including an improved metal pressure cap |
12/03/1991 | US5069584 Hollow drilling tool |
11/13/1991 | EP0455751A1 Method of and means for treating a floor |
11/12/1991 | US5063714 Diamond coating |
10/29/1991 | US5060424 Surface grinding apparatus |
10/16/1991 | EP0451509A1 Abrading device |
10/09/1991 | EP0450209A1 A two sided abrasive disc with intermediate member |
10/08/1991 | US5054246 Abrasive compacts |
10/02/1991 | EP0449509A1 Marble, granite and stone finishing method and abrasive pads therefor |
10/01/1991 | US5052154 Grinding wheel having adjustable axial dimension |
09/17/1991 | US5048237 Attachment for a power tool |
09/11/1991 | EP0445568A1 Process for manufacturing of a grinding wheel for grinding spectacle lens edges |
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 |
08/21/1991 | EP0442104A2 Device for drilling undercutted holes |
08/14/1991 | CN1013485B Process and apparatus for providing cutting edges |
07/24/1991 | CN1013256B Abrasive wheel polisher for big stainless steel plate |
07/16/1991 | US5031361 Disposable finishing article having integral mounting hub including improved metal pressure cap |
06/27/1991 | WO1991008864A1 An article having a high friction surface, an apparatus and a method for producing said article |
06/26/1991 | EP0433692A2 Segmentee grinding wheel |
06/25/1991 | US5025871 Drilling method and rotary drill bit crown |
06/13/1991 | WO1991007902A1 Method of and means for treating a floor |
06/11/1991 | US5022191 Polishing plate |
05/28/1991 | CA2015673A1 Attachment for a power tool |
05/25/1991 | CA2020914A1 Method of and means for treating a floor |
05/22/1991 | EP0428476A1 Tubular drill |
05/16/1991 | DE3937180A1 Cubic boron nitride grinding wheel - has layer of CBN abrasive electroplated onto flanks on teeth on periphery of grinding disk |
04/24/1991 | EP0423914A1 Gear type tool |
04/24/1991 | CN1050838A High-efficient emery wheel and treating method |
03/21/1991 | DE4005221A1 Grinder body with cooling grooves - has spiral grooves of part-circular cross-section extending over working surface |
03/19/1991 | US5000630 Bit for forming holes in composite materials |
02/19/1991 | US4993891 Milling cutter with grinding inserts |
02/06/1991 | EP0411253A2 Method for manufacturing grinding or similar tools covered with extremely hard abrasive grains, in particular for finishing gear wheels and tools obtainable by this process. |
02/05/1991 | US4989375 Grinding wheel having high impact resistance, for grinding rolls as installed in place |
01/22/1991 | US4986035 Grinding wheel for the smoothing and polishing of glasses |
01/09/1991 | CN2068890U Polishing element made of polyamide plastic |
01/02/1991 | EP0405640A1 Tools for working non-metallic hard materials |
12/27/1990 | WO1990015683A1 Hollow drill |
12/25/1990 | US4979336 Disposable finishing article having an integral mounting hub including an improved metal pressure cap |
12/18/1990 | US4977709 Abrasive wheel |
11/22/1990 | EP0397955A1 An abrasive wheel |
11/20/1990 | CA1276469C Textured lapping plate and process for its manufacture |
11/07/1990 | EP0395644A1 Abrasive tool and a method of making said tool |
10/10/1990 | EP0391683A1 Drilling |
10/09/1990 | US4961290 Mount for grinding wheel |
09/04/1990 | US4953982 Method and apparatus for endpoint detection in a semiconductor wafer etching system |
08/28/1990 | US4951423 Two sided abrasive disc with intermediate member |
08/14/1990 | US4947598 Method for grinding the surface of a semiconductor wafer |
08/08/1990 | EP0381557A1 Releasable quick-mounting device for a rotating part, especially a grinding disc |
07/25/1990 | EP0378964A2 Trepanning tool |
07/25/1990 | CN1008894B Disposable grinding apparatus having integral mounting hub |
06/26/1990 | US4936052 Machine and method of grinding molding die |
06/19/1990 | US4934107 Finishing article having an integral mounting hub and improved composite pressure cap |
05/30/1990 | EP0370843A1 Polishing plate |
05/23/1990 | EP0276310B1 Diamond drill for working hard brittle materials |
05/15/1990 | US4924634 Finishing article having an integral mounting hub and improved base |
04/26/1990 | DE3925395A1 Pot-shaped diamond grinding tool coolant system - has round coolant deflector between feed passage and work |
04/25/1990 | EP0364482A1 Machining tool with wear detection and system for measuring wear |
04/24/1990 | US4918872 Surface grinding apparatus |