| Patents for B24B 55 - Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition (6,990) |
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| 05/16/1989 | US4829722 Light accessory for a bench grinder |
| 04/18/1989 | US4822218 Fluid delivery device for a machining center, and a machining center |
| 04/13/1989 | DE3734676C1 Grinding disc for prodn. of tool shank grooves - has top sealing plates movable by drive to seal gap and retain oil |
| 04/12/1989 | CN2035684U Dust-suction type electric grinding-wheel dressing machine |
| 03/21/1989 | US4813186 Apparatus for converting a compressed air operating pulse to a hydraulic operating pulse for a grinding machine especially for a precision griding machine |
| 03/14/1989 | US4811527 Abrading |
| 03/14/1989 | US4811526 Storable water curtain sanding air system |
| 03/08/1989 | EP0305616A1 Machining center comprising a fluid delivery device |
| 03/02/1989 | DE3819602A1 Device for working gemstones |
| 03/01/1989 | CN2033324U Dust-absorbing emery-wheel machine |
| 02/21/1989 | US4805353 Pedestal vacuum system for grinder or other tool |
| 02/21/1989 | CA1250147A1 Close tolerance internal grinding using coolant mist |
| 02/16/1989 | DE3153223C2 Apparatus for separating liquid-wetted grinding dust entrained in an air stream |
| 02/01/1989 | EP0301269A2 Grinding machine with dust sucking means |
| 01/25/1989 | EP0300180A1 Disk wheel grinder |
| 01/24/1989 | US4799336 Dust collecting system for bench grinder |
| 01/19/1989 | DE3722629A1 Angle grinder having a braking device |
| 01/11/1989 | CN2030527U Dust-exhausting grinder |
| 01/10/1989 | US4797074 Governor device |
| 01/04/1989 | EP0297879A2 Motor speed controller for a pressure fluid-operated motor |
| 01/03/1989 | US4794740 For a power tool |
| 12/22/1988 | DE3719315A1 Circular-grinding installation |
| 12/20/1988 | US4791760 Grinding wheel coolant distributor |
| 12/08/1988 | DE3734175A1 Surface-working apparatus |
| 12/06/1988 | US4788797 Self-supporting hand-held grinding device |
| 11/22/1988 | US4785587 Novel lap for the polishing of gem stones |
| 11/08/1988 | US4782632 Drywall sander |
| 11/08/1988 | US4782591 Saw blade cooling system |
| 10/25/1988 | US4779603 Brick saw container |
| 10/25/1988 | US4779385 For use in drywall joint finishing |
| 10/05/1988 | EP0285042A1 Backup plate for abrasive discs |
| 09/28/1988 | EP0284411A2 An improved anti-polution design for a bench grinder |
| 09/27/1988 | US4773487 Speed limiter for an air powered tool |
| 09/20/1988 | US4772402 Tools, recovering, pumping, filtration, circulation |
| 09/20/1988 | US4771578 Apparatus for the grinding or polishing of workpieces |
| 08/30/1988 | US4766699 Apparatus for grinding the edges of lenses |
| 08/24/1988 | EP0279098A2 Method of cooling and lubricating work pieces during grinding and severe machining operations by means of cubic boron nitride |
| 08/24/1988 | EP0279047A1 Flexible dust bag coupling |
| 08/23/1988 | US4765099 Sanding and dust collecting apparatus |
| 08/23/1988 | US4765096 For the precision machining of small bores in worlpieces |
| 07/26/1988 | US4759155 Particle collecting sander |
| 07/13/1988 | CN87210743U Dust-collecting pneumatic polishing machine |
| 07/05/1988 | US4754581 Close-capture travelling hood for travelling hardwheel grinder |
| 07/05/1988 | US4754579 Hand-held power file with dust extraction arrangement |
| 06/23/1988 | DE3643286A1 Manual grinding machine |
| 06/21/1988 | US4751796 Device for supplying grinding fluid |
| 06/09/1988 | DE3640818C1 Spray head for producing an air-liquid mixture, in particular for a cooling device |
| 06/08/1988 | EP0269997A2 Process and device for the correction of the cutting direction for sawing crystal rods or blocks |
| 05/25/1988 | EP0267993A1 Sander shield |
| 05/19/1988 | DE3638337A1 Clamping device for the protective hood of angle grinders or similar power tools |
| 05/05/1988 | WO1988003077A1 Fixing recess for a protective cover for portable grinders |
| 04/28/1988 | DE3636500A1 Protective hood for powered hand tools, in particular grinding machines |
| 04/26/1988 | US4739586 Method of and apparatus for edge grinding glass panes |
| 04/21/1988 | DE3644499C1 Grinding shoe for a portable grinding machine |
| 04/07/1988 | DE3633943A1 Protective hood which can be connected to the spindle neck of a hand-guided angle grinder or similar power tool |
| 03/17/1988 | DE3629989A1 Rotational speed-monitoring device on a grinding machine |
| 03/08/1988 | US4729436 Ball and disc over-speed shut-off mechanism for a rotary pneumatic tool |
| 03/08/1988 | US4729195 Hand gripping machine with a suction device |
| 02/24/1988 | CN85102361B Electro-control set for automatic balance of liquid in the emery grinder |
| 01/26/1988 | US4720940 Rotary drum sander |
| 01/20/1988 | CN87204254U Dust removing grinder |
| 01/13/1988 | EP0252552A1 Manual electrical tool with motor and dust suction means incorporated in the handle |
| 01/12/1988 | CA1231236A1 Drill powered wet or dry abrasive apparatus |
| 01/07/1988 | DE3625671C1 Eccentric plate grinder |
| 12/23/1987 | DE3620562A1 Dust extraction device for rotary grinding machines |
| 12/08/1987 | US4711055 Displaceable protective cover for handtools provided with rotatable disc-shaped tools |
| 12/01/1987 | US4709513 Glass scratch removal method |
| 11/25/1987 | EP0246448A2 Apparatus for the grinding or polishing of workpieces |
| 11/24/1987 | CA1229486A1 Surface sander |
| 11/10/1987 | US4704823 For deburring workpieces |
| 10/22/1987 | DE3611937A1 Method for cooling grinding wheels |
| 10/22/1987 | DE3611747A1 Hand-held machine tool with suction device |
| 10/06/1987 | US4697390 Particle collection system |
| 09/23/1987 | EP0237830A2 Grinding machine for edging spectacle glasses |
| 09/23/1987 | EP0237790A1 Honing device |
| 09/10/1987 | DE3607106A1 Dust extraction device for rotary grinding machines |
| 08/19/1987 | EP0232761A2 Tool for the treatment of surfaces or the like |
| 08/04/1987 | US4683682 Safety lever for portable power tool |
| 07/30/1987 | DE3601986A1 Workplace with protective panel |
| 07/02/1987 | DE3625144C1 Device for transmitting a pressurised fluid |
| 07/01/1987 | EP0227644A2 Portable electrical machine tool for the machining of surfaces of materials with dust discharge duct included in the gripping handle |
| 06/30/1987 | US4676557 Cooling system for wheeled saw |
| 06/09/1987 | US4671708 Debris collector and cooler |
| 06/09/1987 | US4671020 Power sander with pad containing air-flow passages |
| 06/09/1987 | US4671019 Portable power operated sander |
| 05/21/1987 | WO1987002924A1 Portable grinder |
| 05/19/1987 | US4665656 Filter apparatus for abrasive tool |
| 05/05/1987 | US4662117 Dust collecting apparatus |
| 04/30/1987 | DE3537935A1 Improved dust extraction device for grinding apparatuses having a rotating grinding disc |
| 03/26/1987 | DE3533668A1 Dust-extraction device for grinding machines with a rotating grinding plate |
| 03/25/1987 | EP0215476A2 Rotary grinder with dust extraction-device |
| 03/11/1987 | EP0213172A1 A displaceable protective cover for handtools provided with rotatable disc-shaped tools. |
| 02/26/1987 | DE3624798A1 Protective and suction covering |
| 02/19/1987 | DE3528611A1 Self-propelled chip-removing machining tool |
| 02/05/1987 | DE3527372A1 Splash-guard device on spectacle-glass edge-grinding machines |
| 01/27/1987 | US4638523 Air guard diffuser |
| 01/22/1987 | DE3525092A1 Especially portable severing device, such as a hand-held circular saw, abrasive cutting device or the like |
| 01/21/1987 | CN85102892A Polishing apparatus |
| 01/13/1987 | US4635434 Protective device for a grinder or the like |
| 12/31/1986 | CN85104996A Glass milling and grinding's cooling liquid and its making method |