| 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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| 01/04/1993 | CA2072923A1 Gemstone holding apparatus |
| 12/15/1992 | US5170588 Eccentric grinding machine |
| 12/10/1992 | DE4118589A1 Salvage of metal dust removed from workpieces by grinding - by compressing mixture of metal dust and cooling medium to form bars |
| 12/02/1992 | EP0406247B1 Eccentric grinding machine |
| 11/25/1992 | EP0515011A2 Process for the cleaning of metallic grinding slurries from oil or oily emulsions |
| 11/25/1992 | EP0515002A1 A fluid delivery device for a machining center |
| 11/25/1992 | CN2122708U Dry-type two-grade dust-removing grinder |
| 11/17/1992 | US5163252 Adjustable shield for a dynamic tool |
| 11/12/1992 | WO1992019423A1 Power tool |
| 11/12/1992 | WO1992019421A1 Dust emissions control mechanism for hand sanders |
| 11/12/1992 | DE4214347A1 Power wood-grinding machine - has grinding table and exhaustion head movable on three axes in relation to each other |
| 10/29/1992 | DE4113641A1 Handwerkzeugmaschine Hand tool |
| 10/28/1992 | EP0510828A2 Apparatus for cutting and shaping material |
| 10/26/1992 | CA2065830A1 Apparatus for cutting and shaping material |
| 10/21/1992 | EP0509481A2 Glass beveling machine |
| 08/27/1992 | DE4105373A1 Hand-guided cut-off machine for quarry stone - has dust stream collected by suction nozzle at leading corner of guard extending down sides of cutter |
| 08/26/1992 | CN2113858U Sound emission grinding contact detecting device |
| 08/25/1992 | US5140780 Method and apparatus for cleaning and cooling a machine tool and workpiece |
| 08/20/1992 | WO1992013678A1 Hand-held power tool |
| 08/19/1992 | EP0499371A1 Manufacture of laminated windows |
| 08/18/1992 | US5138797 Grinding guide assembly for a hand-held grinding machine for buttons of a button drill bit |
| 08/06/1992 | WO1992012825A1 Hand tool |
| 08/06/1992 | WO1992012824A1 Hand tool |
| 08/06/1992 | WO1992012823A1 Hand-held power tool |
| 08/06/1992 | DE4102838A1 Handwerkzeugmaschine Hand tool |
| 07/30/1992 | DE4102483A1 Handwerkzeugmaschine Hand tool |
| 07/30/1992 | DE4102482A1 Handwerkzeugmaschine Hand tool |
| 07/30/1992 | DE4102421A1 Handwerkzeugmaschine Hand tool |
| 07/29/1992 | EP0496514A2 Abrasive sheets |
| 07/29/1992 | EP0333710B1 Fixing recess for a protective cover for portable grinders |
| 07/21/1992 | US5131192 Dust arrester for a sanding machine |
| 07/16/1992 | DE4111016C1 Grinding machine setter matching monitored tool condition - uses data store for condition parameter in form of magnetisable or optically writable code carrier directly mountable on regulating or grinding wheel |
| 07/14/1992 | US5129190 Machining and apparatus |
| 07/07/1992 | US5127196 Apparatus for planarizing a dielectric formed over a semiconductor substrate |
| 07/01/1992 | EP0493033A1 Portable rotary tool |
| 06/30/1992 | US5125190 Dust collector and shield for rotary grinder |
| 06/30/1992 | US5125189 Vibration damped hand held rotary grinding machine |
| 06/23/1992 | US5123216 Portable grinder |
| 06/23/1992 | US5123215 Glass beveling machine |
| 06/16/1992 | US5122170 Protective device for maintaining the concentration of sulfur oxides and nitrogen oxides below predetermined level |
| 06/10/1992 | CN2106680U Small surface grinding machine with water |
| 05/19/1992 | US5113622 Apparatus for grinding semiconductor wafer |
| 05/12/1992 | US5111625 Machine for contour grinding outside peripheral surfaces of workpieces |
| 05/06/1992 | EP0483561A1 Machining method and apparatus |
| 05/05/1992 | CA1299944C Governor device |
| 04/29/1992 | EP0482254A1 Vacuum pole sander |
| 04/24/1992 | CA2028325A1 Vacuum pole sander |
| 04/21/1992 | US5105585 Dust emissions control mechanism for hand sanders |
| 04/16/1992 | DE4035798C1 Supplying liq. coolant to grinding work - feeds coolant by nozzle to contact zone between grinding wheel and workpiece |
| 04/15/1992 | EP0480416A2 Grinding machine with magazine for the storage of grinding wheels |
| 04/14/1992 | US5104828 Method of planarizing a dielectric formed over a semiconductor substrate |
| 04/14/1992 | US5104529 Coolant recycler |
| 04/01/1992 | EP0478518A1 Improvement and enhancing of grinding wheels for the machine working of marble, granite and the like |
| 04/01/1992 | CN2100279U Dustless electric polishing machine |
| 03/31/1992 | US5099616 Apparatus and method for reducing wood dust emissions from large diameter disc sanders while cleaning a sanding disc thereof |
| 03/24/1992 | US5099160 Powered hand tool having an enclosed-ventilated drive motor |
| 03/24/1992 | US5097636 Edge belt sander with swingable dust hood |
| 03/19/1992 | WO1992004158A1 Apparatus and method for reducing wood dust emissions from large diameter disc sanders while cleaning a sanding disc thereof |
| 03/03/1992 | CA1296529C Dual purpose grinding machine |
| 02/18/1992 | US5088242 Polishing device |
| 02/18/1992 | US5088241 Polishing device |
| 02/17/1992 | WO1992003256A1 Abrading device |
| 02/17/1992 | CA2091582A1 Abrading device |
| 02/05/1992 | EP0469764A2 Apparatus for grinding nuclear fuel pellets |
| 01/30/1992 | DE4023464A1 Portable angle grinder with dust extraction system - has relief valves set to keep suction force on grinding wheel below that causing adherence to work |
| 01/23/1992 | WO1992000834A1 Clamping device for securing a protective hood to the neck of a hand machine-tool |
| 01/09/1992 | DE4021510A1 Spannvorrichtung zum festspannen einer schutzhaube am spannhals einer handwerkzeugmaschine Tighten tensioner for a protective cover on the neck of a hand-span machine tools |
| 01/07/1992 | US5078256 Machine tool having a chip collecting apparatus |
| 01/07/1992 | US5077942 Vibration damped hand held rotary grinding machine |
| 01/01/1992 | CN2091742U Dustless pneumatic abrader |
| 12/24/1991 | US5074044 Dust disposal attachment for a rotary element of a power tool |
| 12/12/1991 | CA2018832A1 Counter balance safety guard for a dual action sander |
| 12/11/1991 | EP0191853B1 Abrasive surfacing machine |
| 12/04/1991 | EP0459235A1 Device for feeding cooking and lubricating means on a high-speed external grinding machine |
| 11/28/1991 | WO1991017865A1 Dust collector and shield for rotary grinder |
| 11/21/1991 | EP0457740A1 A vibrator damped hand held rotary grinding machine |
| 11/19/1991 | US5065476 Handle arrangement for a handheld portable tool |
| 11/06/1991 | EP0455618A1 A vibration damped hand held rotary grinding machine |
| 10/16/1991 | EP0451471A2 Method and apparatus for polishing a semiconductor wafer |
| 10/09/1991 | CN2086184U Dust absorption type angular direction abrader |
| 09/26/1991 | DE4032069A1 Angle grinder with dust extracting guard - has suction passage for escape of dust laden air from guard incorporated in handle |
| 08/29/1991 | DE3943491C1 Cold gas generator and feeder to grinding and polishing tool(s) - has gas mixt. container in line from liquefied gas reservoir to tool(s) |
| 08/27/1991 | US5042626 Arrangement for actuating a braking device for bringing a motor-driven work tool of a work apparatus to standstill |
| 08/13/1991 | US5039321 Apparatus for preventing clouding of a semiconductor wafer |
| 08/08/1991 | WO1991011297A1 Hand machine-tool with radial fan |
| 08/08/1991 | DE4100979A1 Angle grinder oil seal - has dynamic and static portions functionally when running and stopped respectively |
| 08/08/1991 | DE4003029A1 Handgefuehrte werkzeugmaschine mit radialgeblaese Guided hand machine tools with radialgeblaese |
| 08/06/1991 | US5036630 Radial uniformity control of semiconductor wafer polishing |
| 08/06/1991 | US5036628 Seal assembly for a wafer grinding machine |
| 08/06/1991 | US5036627 Dustless sanding device |
| 07/30/1991 | US5035684 Pad sander paper punch assembly and method |
| 07/23/1991 | US5033192 Hand-held tool with cutting or grinding disk |
| 07/16/1991 | US5031364 Fastener pintail shaving tool |
| 07/16/1991 | US5031360 Broken blade detector for semiconductor die saws |
| 07/16/1991 | US5031325 Hand-held tool with a cutting or grinding disk |
| 07/13/1991 | WO1991010537A1 Rail grinding machine spark and dust suppression apparatus |
| 07/13/1991 | CA2071528A1 Rail grinding machine spark and dust suppression apparatus |
| 07/10/1991 | CN2080440U Safety dust-catching grinding wheel |
| 07/09/1991 | US5029416 Electronic brake for lens generator device |
| 07/03/1991 | EP0435821A1 Hand tool equipped with a milling or grinding disc |