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)
10/1992
10/27/1992CA1309258C Composite grinding wheel
10/20/1992US5156071 Chain saw sharpener with built-up grinding tool
10/06/1992US5152106 Cut-off wheel having disposable mounting hub
09/1992
09/30/1992CN2117233U Grinding handle for bicycle valve
09/29/1992US5151584 Method and apparatus for endpoint detection in a semiconductor wafer etching system
09/29/1992US5150546 Disc sander implement
09/22/1992US5148634 Scissor sharpening apparatus with magnetic guide
09/08/1992US5144773 Honing or grinding tool and measuring device for measuring wear
09/03/1992WO1992014580A1 Method of and machine for grinding a workpiece
09/03/1992CA2104479A1 Method of and machine for grinding a workpiece
08/1992
08/19/1992EP0499334A1 Surface processing device
08/11/1992US5137098 Diamond tool for drilling and routing
08/05/1992EP0497008A2 Process and apparatus for grinding cams or the like
08/04/1992CA1305860C Disposable grinding apparatus having an integral mounting hub
08/02/1992CA2060149A1 Method and means for grinding cams and the like
07/1992
07/29/1992EP0477253A4 Hollow drill.
07/14/1992US5129190 Machining and apparatus
07/08/1992EP0493785A1 Scissors sharpening apparatus
06/1992
06/17/1992DE4039805A1 Wheel profile permitting grinding on both sides of collar - consists of two pairs of bevel segments dressed symmetrically about middle plane of wheel
05/1992
05/30/1992WO1992009395A1 Tool for producing crown wheels, and method for producing such a tool
05/30/1992CA2096024A1 Tool for producing crown wheels, and method for producing such a tool
05/12/1992US5111624 Method and apparatus for limiting the dispersion of rail grinding machine spark and dust residue
05/06/1992EP0483561A1 Machining method and apparatus
04/1992
04/30/1992DE4115666C1 Grinding wheels with variable spacing - are coaxial and rotate together and are urged apart by spring
04/29/1992CN2102821U Sand plate with hole
04/08/1992EP0478912A2 Working disc for lapping, honing and polishing machine
04/01/1992EP0478518A1 Improvement and enhancing of grinding wheels for the machine working of marble, granite and the like
04/01/1992EP0477253A1 Hollow drill.
03/1992
03/25/1992EP0476272A1 Rotary polishing tool
03/10/1992US5094039 Gear type tool
03/03/1992US5092082 Apparatus and method for laminated grinding disks employing vibration damping materials
02/1992
02/25/1992US5090848 Device for producing drilled holes with undercut
02/11/1992US5086592 Grinding tool and method of using same
02/06/1992DE4024399A1 Drilling tool with hardened head - is formed as forward tapered truncated cone with grooves for removal of waste
01/1992
01/29/1992EP0273055B1 Machine and method of grinding molding die
01/22/1992CN2093719U Abrasive disk with spiral slots
01/21/1992US5082070 Hollow drill bit
01/14/1992US5079875 Segmentee grinding wheel
12/1991
12/31/1991US5077464 Method and apparatus for endpoint detection in a semiconductor wafer etching system
12/31/1991US5076024 Disk polisher assembly
12/31/1991US5076023 Polishing-grindstone mount base assembly
12/26/1991WO1992000163A1 Disposable finishing article having an integral mounting hub including an improved metal pressure cap
12/26/1991CA2087031A1 Disposable finishing article having an integral mounting hub including an improved metal pressure cap
12/03/1991US5069584 Hollow drilling tool
11/1991
11/13/1991EP0455751A1 Method of and means for treating a floor
11/12/1991US5063714 Diamond coating
10/1991
10/29/1991US5060424 Surface grinding apparatus
10/16/1991EP0451509A1 Abrading device
10/09/1991EP0450209A1 A two sided abrasive disc with intermediate member
10/08/1991US5054246 Abrasive compacts
10/02/1991EP0449509A1 Marble, granite and stone finishing method and abrasive pads therefor
10/01/1991US5052154 Grinding wheel having adjustable axial dimension
09/1991
09/17/1991US5048237 Attachment for a power tool
09/11/1991EP0445568A1 Process for manufacturing of a grinding wheel for grinding spectacle lens edges
09/05/1991DE4006660A1 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
08/1991
08/21/1991EP0442104A2 Device for drilling undercutted holes
08/14/1991CN1013485B Process and apparatus for providing cutting edges
07/1991
07/24/1991CN1013256B Abrasive wheel polisher for big stainless steel plate
07/16/1991US5031361 Disposable finishing article having integral mounting hub including improved metal pressure cap
06/1991
06/27/1991WO1991008864A1 An article having a high friction surface, an apparatus and a method for producing said article
06/26/1991EP0433692A2 Segmentee grinding wheel
06/25/1991US5025871 Drilling method and rotary drill bit crown
06/13/1991WO1991007902A1 Method of and means for treating a floor
06/11/1991US5022191 Polishing plate
05/1991
05/28/1991CA2015673A1 Attachment for a power tool
05/25/1991CA2020914A1 Method of and means for treating a floor
05/22/1991EP0428476A1 Tubular drill
05/16/1991DE3937180A1 Cubic boron nitride grinding wheel - has layer of CBN abrasive electroplated onto flanks on teeth on periphery of grinding disk
04/1991
04/24/1991EP0423914A1 Gear type tool
04/24/1991CN1050838A High-efficient emery wheel and treating method
03/1991
03/21/1991DE4005221A1 Grinder body with cooling grooves - has spiral grooves of part-circular cross-section extending over working surface
03/19/1991US5000630 Bit for forming holes in composite materials
02/1991
02/19/1991US4993891 Milling cutter with grinding inserts
02/06/1991EP0411253A2 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.
02/05/1991US4989375 Grinding wheel having high impact resistance, for grinding rolls as installed in place
01/1991
01/22/1991US4986035 Grinding wheel for the smoothing and polishing of glasses
01/09/1991CN2068890U Polishing element made of polyamide plastic
01/02/1991EP0405640A1 Tools for working non-metallic hard materials
12/1990
12/27/1990WO1990015683A1 Hollow drill
12/25/1990US4979336 Disposable finishing article having an integral mounting hub including an improved metal pressure cap
12/18/1990US4977709 Abrasive wheel
11/1990
11/22/1990EP0397955A1 An abrasive wheel
11/20/1990CA1276469C Textured lapping plate and process for its manufacture
11/07/1990EP0395644A1 Abrasive tool and a method of making said tool
10/1990
10/10/1990EP0391683A1 Drilling
10/09/1990US4961290 Mount for grinding wheel
09/1990
09/04/1990US4953982 Method and apparatus for endpoint detection in a semiconductor wafer etching system
08/1990
08/28/1990US4951423 Two sided abrasive disc with intermediate member
08/14/1990US4947598 Method for grinding the surface of a semiconductor wafer
08/08/1990EP0381557A1 Releasable quick-mounting device for a rotating part, especially a grinding disc
07/1990
07/25/1990EP0378964A2 Trepanning tool
07/25/1990CN1008894B Disposable grinding apparatus having integral mounting hub
06/1990
06/26/1990US4936052 Machine and method of grinding molding die
06/19/1990US4934107 Finishing article having an integral mounting hub and improved composite pressure cap
05/1990
05/30/1990EP0370843A1 Polishing plate
05/23/1990EP0276310B1 Diamond drill for working hard brittle materials
05/15/1990US4924634 Finishing article having an integral mounting hub and improved base
04/1990
04/26/1990DE3925395A1 Pot-shaped diamond grinding tool coolant system - has round coolant deflector between feed passage and work
04/25/1990EP0364482A1 Machining tool with wear detection and system for measuring wear
04/24/1990US4918872 Surface grinding apparatus
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