Patents for B24B 21 - Machines or devices using grinding or polishing belts; Accessories therefor (4,476)
05/1996
05/01/1996EP0708698A1 Process for manufacturing pistons, piston rods, as well as cylinders for hydraulic or pneumatic units
05/01/1996CN2225930Y Abrasive disk abrasive belt machine
04/1996
04/30/1996US5512009 Method and apparatus for attenuating optical chatter marks on a finished surface
04/23/1996US5509850 Polishing apparatus
04/17/1996EP0706857A1 Wafer polishing machine
04/17/1996EP0706856A1 Polishing pad cluster for polishing a semiconductor wafer
04/17/1996EP0706855A2 Wafer polishing machine
04/16/1996US5507684 Machine for the two-stage machining of preground shafts
04/10/1996EP0705663A1 Grinding apparatus
04/10/1996CN1119977A Grinding apparatus
04/03/1996EP0704280A1 Machine-tool, particularly for microfinishing of camshafts
03/1996
03/21/1996WO1996008333A1 Shaping machine
03/21/1996DE4432974A1 Elektrische Handschleifmaschine Electric hand grinder
03/13/1996EP0700326A1 Method of providing a smooth surface on a substrate
02/1996
02/14/1996EP0696495A1 Linear polisher and method for semiconductor wafer planarization
02/13/1996US5490808 Abrasive attachment system for rotative abrading applications
02/06/1996US5489235 Abrasive article and method of making same
02/01/1996DE4426923A1 Vorrichtung zur Oberflächenbearbeitung von Werkstücken Device for the surface machining of workpieces
01/1996
01/24/1996CN2218052Y Sand band polisher
01/24/1996CN2218051Y Sand band grinder
01/16/1996US5484328 Sanding tool
01/11/1996DE4424167A1 Pressurised bellows used to press grinding belts against workpieces
01/10/1996EP0691179A2 Device to facilitate the fitting of abrasive belts to sanding machines,especially for wooden panels
01/04/1996DE4421395A1 Belt grinder for profiling straight edges to flat plates esp. glass
01/03/1996EP0673298A4 Locking mechanism for multiple belt grinding machine.
01/03/1996CN2216444Y Multi-purpose protable abrasive belt machine
12/1995
12/20/1995CN2215379Y Three-dimension copying abrasive belt grinding machine
12/19/1995US5476413 Apparatus for polishing the periphery portion of a wafer
12/19/1995US5476409 Grinding machine
12/15/1995EP0725704A4 Grinding machine utilizing multiple, parallel, abrasive belts for simultaneously grinding surfaces on a workpiece
12/14/1995WO1995033595A1 Finishing machine
12/07/1995DE4419366A1 Finishmaschine Finishing Machine
12/07/1995DE4418919A1 Automatic grinding belt guide for belt grinder
12/05/1995US5472374 Polishing method and polishing device using the same
12/05/1995US5472368 Method of and machine for grinding cams
12/05/1995US5471796 Multi-purpose lathe
11/1995
11/29/1995EP0684107A2 Automatically securable travel limiting stops for pressure shoes used in an abrasive finishing machine
11/22/1995EP0486696B1 Surface grinder for glass plate
11/15/1995EP0549653B1 Polisher
11/15/1995CN1111558A Abrasive article and method of making same
11/15/1995CN1111557A Inner hole abrasive band grinding method and mechanism thereof
11/09/1995WO1995029791A1 Microfinishing tool with axially variable machining effect
11/08/1995EP0680806A1 Tooling for belt finishing of cylindrical bearings with diameter control of the bearings
11/02/1995EP0679471A1 Mechanical drive for dual motion motor used in oscillating spindle sander
11/02/1995DE4414958C1 Belt grinder for board material
10/1995
10/25/1995CN2210750Y Portable rotary abrasive machine
10/11/1995EP0675780A1 Workpiece grinding apparatus
09/1995
09/28/1995DE4402032A1 Ferromagnetic grinding belt fixed by magnetic shoe to conform with work piece
09/28/1995DE4401548A1 Machining tool for profiling bearings esp. roller or grooved ball bearings
09/27/1995EP0673298A1 Locking mechanism for multiple belt grinding machine
09/14/1995DE4419963C1 Continuous loop grinding machine for chamfering both sides of glass plate edge
09/14/1995DE19506536A1 Reducing optical chatter marks produced by finishing machine
09/05/1995US5447464 Automated method of finishing the tip of a terminated optical fiber
08/1995
08/30/1995CN2206183Y Self-sharp type skewed tooth flexible abrasive belt wheel
08/22/1995US5443415 Burnishing apparatus for flexible magnetic disks and method therefor
08/17/1995WO1995021728A1 Method and apparatus for correcting diametrical taper on a workpiece
08/15/1995US5441437 Compliant constant-force follower device for surface finishing tool
08/09/1995EP0551457B1 Grinder for grinding a cylindrical or spherical surface of a roll, especially a paper machine roll
08/03/1995DE4403066A1 Circular grinding machine
08/01/1995US5437570 Apparatus for making cutouts in the ends of tubular workpieces
08/01/1995US5437125 Surface polishing assembly
07/1995
07/20/1995DE4400791A1 Machine for grinding workpiece faces e.g. cam, crankshaft
07/19/1995EP0543905B1 An apparatus for grinding, polishing etc. of workpieces
07/18/1995US5433042 Method and apparatus for grinding tires
07/11/1995US5431592 Method and apparatus for burnishing magnetic disks
06/1995
06/22/1995WO1995016546A1 Edge grinder for mechanically rounding off edges of structural members
06/08/1995DE4341498A1 Grinding machine
06/06/1995US5421126 Sander attachment for attaching to an existing fence
06/06/1995CA2087051C Combination belt and disc sander
05/1995
05/24/1995EP0653973A1 Belt grinder.
05/17/1995EP0653269A1 Belt grinding assembly
05/11/1995DE4421203C1 Machine frame for belt grinding machines
05/09/1995CA2054131C Machining centre for grinding workpieces with complex shaped surfaces
05/03/1995EP0650804A1 Apparatus for polishing the notch of a wafer
04/1995
04/06/1995DE4333734A1 Apparatus for the level-contour grinding-off of elevations or grinding-out of defects in the form of edge-free grinding geometries
04/05/1995EP0646436A1 An apparatus for polishing the periphery portion of a wafer
03/1995
03/28/1995CA2087312C Brake drum micro-finishing method and apparatus
03/21/1995US5399125 Belt grinder
03/15/1995EP0642889A1 Abrasive article and method of making same
03/15/1995EP0642887A2 Apparatus for producing hollow ground needles
03/07/1995US5394653 Grinder for grinding a cylindrical or spherical surface of a roll, especially a paper machine roll
02/1995
02/16/1995DE4326890A1 Apparatus for grinding the edges of plate- or panel-shaped workpieces
02/14/1995US5388373 Apparatus for applying a cutting edge to a needle
02/10/1995CA2127840A1 Apparatus for producing hollow ground needles
02/09/1995DE4326307A1 Grinding machine
02/07/1995US5387457 Mixture of abrasive grains of differing sizes and degrees of hardness
02/07/1995US5386665 Automated/remote control apparatus and method for grinding rubber belts used to compact paper and other web material
02/02/1995DE4322392A1 Device for the belt-grinding of the running surfaces of rails
01/1995
01/26/1995WO1995002486A1 Process for manufacturing pistons, piston rods, as well as cylinders for hydraulic or pneumatic units
01/04/1995CN2186628Y Plate dusting sand polisher
01/04/1995CN2186627Y Fine grinding self-sucking sand polisher
01/03/1995US5377453 Automated method and apparatus for polishing hot strip mill run-out table rolls
01/03/1995US5377452 Grinder for grinding stamper used for disc molding
12/1994
12/15/1994DE4319359A1 Method and apparatus for grinding, in particular belt-grinding machine
12/14/1994CN2185179Y Sand paper grinder
12/13/1994US5371973 Grinding machine utilizing multiple, parallel, abrasive belts simultaneously grinding surfaces on a workpiece
12/08/1994WO1994027780A1 Method of providing a smooth surface on a substrate
12/08/1994CA2163761A1 Method of providing a smooth surface on a substrate
12/01/1994DE4318007A1 Belt-guiding shoe for belt-grinding machines
11/1994
11/29/1994US5367866 Crankpin grinder
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