| Patents for B24B 21 - Machines or devices using grinding or polishing belts; Accessories therefor (4,476) |
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| 11/29/1994 | US5367835 Polisher |
| 11/23/1994 | EP0625407A1 Grinding machine |
| 11/23/1994 | CN2183246Y Folding-type precision polishing cloth wheel |
| 11/22/1994 | US5366525 Manufacture of abrasive tape |
| 11/17/1994 | EP0624431A1 Belt finishing apparatus for cylindrical workpieces |
| 11/17/1994 | EP0624118A1 Divice for grinding a cylindrical surface, especially a roller of a paper machine. |
| 11/17/1994 | DE4315818A1 Slide drive for machines and devices for parts working, parts assembly and the like |
| 11/09/1994 | EP0623421A1 Apparatus for one-sided shaping of tubular workpieces with different diameters |
| 11/08/1994 | US5361546 Apparatus for grinding, polishing ect. of workpieces |
| 11/01/1994 | US5359813 Locking mechanism for contouring head assembly for multiple belt grinding machine |
| 10/25/1994 | US5357714 Apparatus for shaping the ends of tubular workpieces with recesses of different diameters |
| 10/20/1994 | DE4312625A1 Drive device, especially for driving a sanding belt (grinding belt) of a belt sander (belt grinder) |
| 10/19/1994 | CN1093634A Grinding machine utilizing multiple, parallel, abrasive belts for simultaneously grinding surfaces on a workpiece |
| 10/19/1994 | CN1093633A Locking mechanism for contouring head assembly for multiple belt grinding machine |
| 10/18/1994 | US5355632 Apparatus for texture processing of magnetic disk |
| 10/13/1994 | DE4311534A1 Belt grinding unit |
| 09/22/1994 | DE4309052A1 Belt-grinding machine for working the crank pins of a crankshaft |
| 09/14/1994 | EP0614727A1 Automatic belt-inserter device |
| 09/08/1994 | DE4316588C1 Grinding machine with an abrasive belt |
| 09/08/1994 | DE4306314A1 Method and apparatus for the fine-working of printing cylinders for rotogravure web fed presses |
| 08/23/1994 | US5339570 Contact wheel |
| 08/23/1994 | US5339569 Surface processing device |
| 08/18/1994 | WO1994017958A1 Automated system for polishing run-out table rolls |
| 08/09/1994 | US5335453 Polishing machine having a taut microabrasive strip and an improved wafer support head |
| 08/04/1994 | DE4401007A1 Abrasive belt grinding machine |
| 08/03/1994 | EP0608743A1 Abrasive attachment system for rotative abrading applications |
| 08/03/1994 | EP0608625A2 Grinding machine |
| 07/29/1994 | CA2113318A1 Abrasive attachment system for rotative abrading applications |
| 07/12/1994 | CA2037567C Edge belt sander with swingable dust hood |
| 07/07/1994 | WO1994014571A1 Workpiece grinding apparatus |
| 07/06/1994 | EP0605202A1 Grinding machine |
| 06/30/1994 | DE4243933A1 Method for deburring of workpieces - has flexible grinding belt guided by two rollers along edges and corners of workpiece, rounding being determined by belt tension |
| 06/14/1994 | US5319887 Hand sander |
| 06/09/1994 | WO1994012315A1 Divice for grinding a cylindrical surface, especially a roller of a paper machine |
| 06/09/1994 | DE4241293A1 Belt grinding machine with machining position on frame - has machining set with drive motor on support, movable under workpiece pressure w.r.t. machine frame |
| 06/09/1994 | CA2128610A1 Device for grinding a cylindrical surface, especially a roller of a paper machine |
| 05/25/1994 | EP0598205A1 Method and apparatus for burnishing magnetic disks |
| 05/17/1994 | US5311704 Method and apparatus for correcting diametrical taper on a workpiece |
| 05/11/1994 | EP0596083A1 Device with a grinder working in the transversal direction to the direction of passage of the workpieces and its use for frame grinding |
| 05/11/1994 | DE4337502A1 Wooden panel smoothly grinding machine - has drive disc with vertical axis fitted near vertical axis of deflection discs |
| 05/11/1994 | CN2164341Y Planetary light decoration machine |
| 05/05/1994 | DE4236799A1 Manufacturing method for triple reflectors and their tools - has strips formed by grinding in different directions, following direction of strip extension during process |
| 05/03/1994 | CA2023002C Apparatus for monitoring the angular position of a workpiece |
| 04/28/1994 | DE4236029A1 Belt-changing device for belt-type grinding machine - incorporates magazine containing large number of spare belts |
| 04/27/1994 | CN1024327C Method and apparatus for processing precisely the curved spiral surface |
| 04/26/1994 | US5305555 Belt grinding assembly having pivoting means |
| 04/20/1994 | EP0435897B1 A method for grinding steel |
| 04/14/1994 | WO1994007657A1 Remote control apparatus and method for grinding rubber belts |
| 04/14/1994 | WO1994007652A1 Locking mechanism for multiple belt grinding machine |
| 04/14/1994 | WO1994007651A1 Grinding machine utilizing multiple, parallel, abrasive belts for simultaneously grinding surfaces on a workpiece |
| 04/13/1994 | EP0591992A1 Apparatus for applying a cutting edge to a needle |
| 04/13/1994 | CN2161420Y Belt-grinding machine |
| 03/31/1994 | DE4232028A1 Beam pressing grinder belt against workpiece - has supporting body extending for full beam length and accommodating thrust arms |
| 03/22/1994 | US5295329 For use in a sanding apparatus |
| 03/22/1994 | CA2021983C Automatic interlayer trimming |
| 03/10/1994 | DE4230045A1 Abrasive band grinding unit for finishing gravure rolls - has rotating head with end face over which band is continuously drawn from delivery spool and wound onto take-up spool thereby producing non-directional surface texture |
| 03/02/1994 | CN2157849Y Portable multi-function finishing polisher |
| 02/17/1994 | WO1994003308A1 Belt grinder |
| 02/17/1994 | DE4330800A1 Centreless grinding equipment esp. for nozzle needles etc. - has workpiece held in V-notch of supporting block by spring loaded finger and rotated by belt bearing against side of workpiece opposite to grinding wheel |
| 02/08/1994 | CA2023799C Five-way adjustable form block holder with float capabilities |
| 02/01/1994 | CA2029559C Crankpin grinder and method |
| 01/11/1994 | US5276999 Machine for polishing surface of glass plate |
| 01/05/1994 | DE4313179A1 Surface preparation for circular workpieces - using grinding bands reciprocally moved between two sets of reels and with band tension control |
| 01/04/1994 | US5275424 Disk holding apparatus |
| 01/04/1994 | CA2000224C Edge sander having adjustable support table or tables |
| 12/29/1993 | EP0575823A1 Smoothing-polishing machine for cylindrical surfaces |
| 12/28/1993 | US5273493 Tracking device for endless belts moving on rollers |
| 12/15/1993 | EP0573826A1 Motor driven handhold belt-type sander |
| 11/27/1993 | CA2093110A1 Nose piece retainer for abrasive belt backing shoe |
| 11/25/1993 | WO1993023203A1 Device with a grinder working in the transversal direction to the direction of passage of the workpieces and its use for frame grinding |
| 11/25/1993 | CA2113427A1 A machine with a sanding unit which operates normal to the workpiece direction and its application to the sanding of frames |
| 11/24/1993 | EP0571343A1 A sanding machine for wood panels |
| 10/28/1993 | DE4212441A1 Abrasive belt grinding or sanding machine - has belt at right angles to table and tilted in gap so that width of grinding zone varies from max. at one end to zero at other, allowing equalisation of belt wear |
| 10/27/1993 | EP0566831A1 Mechanical cleaning device for surfaces |
| 10/12/1993 | US5251404 Belt grinder for crankshaft pins |
| 10/05/1993 | US5249393 Brake drum micro-finishing apparatus |
| 09/21/1993 | US5245792 Machining center for grinding workpieces with complex shaped surfaces |
| 08/12/1993 | DE4226708A1 Belt type grinding machine with sliding beam to press belt against work piece - has tensioning pulley actuated by pneumatic cylinder to ensure rapid re-adjustment in belt tension |
| 08/11/1993 | EP0479783B1 Hand sander |
| 08/04/1993 | EP0553311A1 Belt grinder |
| 08/03/1993 | US5231801 Belt/disc sander with dust pickup means |
| 08/03/1993 | US5231798 Centerless microfinishing machine |
| 07/28/1993 | EP0552885A1 Brake drum micro-finishing method and apparatus |
| 07/21/1993 | EP0551457A1 Grinder for grinding a cylindrical or spherical surface of a roll, especially a paper machine roll. |
| 07/21/1993 | EP0349653B1 Superfinishing machine with lapping film |
| 07/07/1993 | EP0550298A1 Grinder for grinding stamper used for disc molding |
| 07/07/1993 | EP0549822A1 Belt sander sanding mechanism |
| 07/07/1993 | EP0549653A1 Polisher. |
| 07/06/1993 | US5224300 Machine for the abrasive machining of cylindrical parts |
| 06/29/1993 | US5223304 Polishing with aqueous dispersion of fine diamond particles which also contains dissolved surfactant gives low surface irregularities |
| 06/22/1993 | US5220750 Pressure platen for use in an abrasive finishing machine |
| 06/02/1993 | EP0543905A1 An apparatus for grinding, polishing etc. of workpieces. |
| 05/19/1993 | CN2133407Y Arc ceramic plate sand belt grinding and polisghing machine |
| 05/18/1993 | US5210978 Nose piece retainer for abrasive belt backing shoe |
| 05/18/1993 | CA1317768C Belt sanding machine |
| 05/12/1993 | CN2132592Y Improved device for handpiece of wide-band polishing machine |
| 05/11/1993 | US5209027 Polishing of the rear surface of a stamper for optical disk reproduction |
| 05/05/1993 | EP0540415A1 Method and apparatus for deburring objects made of soft material |
| 05/05/1993 | EP0539842A1 Grinding apparatus for ceramic objects, especially plates and similar table-ware |
| 04/20/1993 | US5203118 Ski grinding machine |