Patents
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)
04/1990
04/19/1990DE3931277A1 Wheel for grinding stone blocks - has circular grinding elements fitted in circular recesses in metal plate
04/18/1990CN1007602B Formating and shaving method for grinding wheel of metallic binder
03/1990
03/28/1990EP0359884A2 Sanding attachment for a tool
03/28/1990EP0193516B1 Grinding tool for dressing and polishing glasses
03/27/1990US4910924 For use with a clamping means
03/22/1990WO1990002632A1 A method of making a polishing member
03/14/1990EP0358526A2 Abrasive compacts
03/13/1990US4907376 Plate mounted grinding wheel
02/1990
02/20/1990EP0318476A4 Disposable grinding apparatus having an integral mounting hub.
02/14/1990EP0354775A2 Diamond tool
02/13/1990US4899494 Finishing article having an integral mounting hub and improved base
01/1990
01/30/1990US4896463 Disposable finishing article having an integral mounting hub including pressure cap secured by rotation
01/24/1990EP0352004A2 Method and apparatus for endpoint detection in a semiconductor wafer etching system
01/24/1990EP0351543A2 Polishing disc
01/02/1990US4890422 Abrasive tool
12/1989
12/27/1989EP0348377A1 Grinding tool for the combined cutting and bevelling of glass or crystal ware
12/27/1989CN1038236A Metal bonded abrasive-wheel forming and correcting method
12/06/1989EP0345239A1 Cup-type grinding wheel and use of the same for grinding and mechanically polishing glass
12/06/1989EP0344610A2 Grinding wheel having high impact resistance, for grinding rolls as installed in place
11/1989
11/29/1989EP0343983A2 Apparatus and methods for grinding tool cutter teeth
11/08/1989EP0229983B1 Sound-deadened grinding wheel
11/07/1989US4878316 Pressure cap for disposable finishing article
10/1989
10/18/1989CN1036356A Abrasive wheel polisher for big stainless steel plate
10/11/1989EP0336066A2 Grinding wheel for plunge-cut grinding
09/1989
09/19/1989US4866886 Textured lapping plate and process for its manufacture
08/1989
08/24/1989DE3902612A1 Combination tool for machining a workpiece
08/24/1989DE3804136A1 Tool for grinding plane surfaces
08/15/1989US4856233 Method for sampling a workpiece
08/08/1989US4854788 Drill
08/08/1989US4854087 Grinding disc
08/08/1989US4854086 Abrasive disc
07/1989
07/13/1989DE3740936A1 Grinding and polishing tool with flexible ring part for controlling the grinding and polishing pressure between workpiece and tool
07/11/1989US4845896 Surface sampling device
07/04/1989US4843768 Abrading apparatus and process for making the same
07/04/1989US4843766 Cutting tool having concentrically arranged outside and inside abrasive grain layers and method for production thereof
06/1989
06/28/1989EP0321972A2 Grinding wheel and use of the same
06/14/1989EP0319643A2 Grinding or polishing disc
06/07/1989EP0318476A1 Disposable grinding apparatus having an integral mounting hub
06/06/1989US4836178 Inset for a tool
06/01/1989DE3804781A1 Abrasive wheel
05/1989
05/31/1989EP0318135A2 Abrading tool and process of manufacturing the same
05/30/1989US4834655 Cutting tools
04/1989
04/18/1989US4821465 Abrasive tool
04/18/1989US4821461 Abrading tool
04/05/1989EP0309785A1 Abrasive wheel
04/04/1989US4817341 Cutting tool having concentrically arranged outside and inside abrasive grain layers and method for production thereof
03/1989
03/09/1989WO1989001843A1 Abrasive tool and a method of making said tool
03/09/1989DE3728447A1 Spreadable shaped grinding wheel
02/1989
02/23/1989WO1989000902A3 Machining tool with wear detection and system for measuring wear
02/09/1989WO1989000902A2 Machining tool with wear detection and system for measuring wear
02/08/1989EP0302565A2 Machining tool
02/02/1989DE3824010A1 Rotating tool, in particular for working glass panes
02/02/1989DE3724106A1 Process for producing a face-grinding disc and face-grinding disc produced according to this process for machining hard materials
01/1989
01/31/1989US4800686 Fabrication method for chamfered hole
01/04/1989CN1030041A Process and apparatus for providing cutting edges
11/1988
11/22/1988US4785587 Novel lap for the polishing of gem stones
09/1988
09/13/1988CA1241946A1 Multi-component cutting element using triangular, rectangular and higher order polyhedral-shaped polycrystalline diamond disks
09/07/1988WO1988006722A1 Surface sampling device
09/07/1988EP0280786A2 Grinding body for power grinding machines
08/1988
08/03/1988EP0276310A1 Diamond drill for working hard brittle materials
08/02/1988US4760670 Disposable depressed center grinding wheel having an integral mounting hub
07/1988
07/19/1988US4757645 cutting tool and method of making same
07/06/1988EP0273055A1 Machine and method of grinding molding die
07/05/1988US4754578 Disposable depressed center grinding wheel having an integral mounting hub including a pressure cap
07/05/1988US4754577 Disposable finishing article having an integral mounting hub including improved pressure cap
06/1988
06/08/1988EP0270333A2 Abrading apparatus and process for making the same
05/1988
05/26/1988DE3638544A1 Clamping device for grindstone segments of discus-grinding machines
03/1988
03/23/1988EP0260422A2 Sanding or polishing back-plate
03/16/1988EP0260026A2 Drill
03/09/1988CN87106089A The mix and its preparation for grinding or polishing stone
01/1988
01/26/1988US4720942 Apparatus for abrading contact lens edges
01/05/1988CA1230972A1 Device for mounting and removal of polishing wheels in machines for polishing stones or like materials
12/1987
12/30/1987WO1987007857A1 Diamond drill for working hard brittle materials
12/17/1987DE3620115A1 Contour milling device
12/02/1987EP0247196A1 Combination planing and finishing tool
10/1987
10/21/1987EP0242174A1 Method and tool for providing a chamfered hole
10/14/1987CN87102592A Disposable grinding apparatus having integral mounting hub
10/08/1987WO1987005847A1 Disposable grinding apparatus having an integral mounting hub
10/08/1987WO1987005846A1 Machine and method of grinding molding die
10/07/1987EP0239918A2 Grinding wheel
09/1987
09/22/1987US4694710 Method of making a blank of a drill bit
09/22/1987US4694615 Disposable depressed center grinding wheel having an integral mounting hub
09/16/1987EP0236877A2 Abrasive body bonded by a synthetic resin
09/15/1987US4693039 Grinding head assembly
09/09/1987EP0236086A1 An insert for a tool
09/08/1987US4691480 Valve seat grinding apparatus
09/02/1987EP0234583A2 Structure of a cylindrical grinding wheel for honing heads, particularly for stones, marbles, granite and the like
08/1987
08/12/1987EP0061457B1 Abrasive article comprising abrasive agglomerates supported in a fibrous matrix
07/1987
07/29/1987EP0229983A2 Sound-deadened grinding wheel
06/1987
06/30/1987US4675975 Combination planing and finishing tool
06/04/1987WO1987003241A1 Combination planing and finishing tool
05/1987
05/13/1987EP0221548A2 Cutting tool having concentrically arranged outside and inside abrasive grain layers and method for production thereof
05/12/1987US4663890 Method for machining workpieces of brittle hard material into wafers
04/1987
04/28/1987US4661064 Rotating tool for dentistry
12/1986
12/30/1986EP0206737A1 Abrasive tool
12/30/1986EP0206652A2 A method of making a blank of a drill bit
12/02/1986US4625707 Core drill apparatus
12/02/1986US4625467 Gear shaper having replaceable tip
12/02/1986CA1214641A1 Grinding head assembly
10/1986
10/21/1986US4617766 Grinding wheel for flat plates
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