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Class Information
Number: 451/194
Name: Abrading > Machine > Rotary tool > Rotary cylinder > Opposed abrading tools
Description: Abrading machine in which a plurality of grinding tools are located on opposite or different sides of the workpiece and simultaneously or successively treat such opposite or different sides thereof.










Sub-classes under this class:

Class Number Class Name Patents
451/195 Alternating tools 28
451/197 Plunger infeeder 6
451/199 Reciprocating work holder 5
451/207 Roller work feed 12
451/209 Work rotating 26


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8690640 Complex geographical edge polishing Apr. 8, 2014
8657651 Apparatus for grinding a continuously cast workpiece Feb. 25, 2014
8597082 Grinding apparatus and method for fabrication of liquid crystal display device Dec. 3, 2013
8591289 Multi-spindle chemical mechanical planarization tool Nov. 26, 2013
8574031 Method of and apparatus for grinding cylindrical and curved surfaces Nov. 5, 2013
8567058 Surface finishing of rotor blades for wind turbine Oct. 29, 2013
8535118 Multi-spindle chemical mechanical planarization tool Sep. 17, 2013
8425281 Electric abrasive sharpener Apr. 23, 2013
8272925 Multi-drum sander and/or rasp Sep. 25, 2012
8231431 Solar panel edge deletion module Jul. 31, 2012
8206199 Electric abrasive sharpener Jun. 26, 2012
8100740 Corner saw Jan. 24, 2012
8075371 Centerless grinder with servo motor Dec. 13, 2011
7963823 Machining machine with means for acquiring machining parameters Jun. 21, 2011
7771249 Corner saw Aug. 10, 2010
7744444 Centerless feed-through super-finishing device having a lapping system containing a freely-disposed abrasive Jun. 29, 2010
7628677 Automated insulation milling machine Dec. 8, 2009
7264540 Arrow blade sharpening apparatus Sep. 4, 2007
7179155 Device for grinding liquid crystal display panel Feb. 20, 2007
7077731 Chemical mechanical planarization (CMP) system and method for preparing a wafer in a cleaning module Jul. 18, 2006
7029366 Method and apparatus for abrasive circular machining Apr. 18, 2006
7021990 Method and apparatus for circular grinding Apr. 4, 2006
7021998 Method and device for finishing surface of long material Apr. 4, 2006
RE39018 High speed method of aligning cutting lines of a workplace using patterns Mar. 21, 2006
7004826 Device for smoothing gear wheels Feb. 28, 2006
6997783 Method of and apparatus for removing a film layer on a glass plate and glass-plate working apparatus having the apparatus Feb. 14, 2006
6971948 Method and apparatus for removing coatings applied to surfaces of a substrate Dec. 6, 2005
6881133 Method of grinding for a vertical type of double disc surface grinding machine for a brake disc Apr. 19, 2005
6814653 Device for peeling or shaping products Nov. 9, 2004
6755724 Device for grinding liquid crystal display panel Jun. 29, 2004
6743083 Method of and apparatus for removing a film layer on a glass plate and glass-plate working apparatus having the apparatus Jun. 1, 2004
6739943 Machining the teeth of double sided face gears May. 25, 2004
6729948 Method and apparatus for rectifying cylindrical articles, in particular nuclear fuel pellets May. 4, 2004
6709319 Sharpener assembly for a food slicer and related method Mar. 23, 2004
6682407 Work-piece processing machine Jan. 27, 2004
6616516 Method and apparatus for asymmetric processing of front side and back side of semiconductor substrates Sep. 9, 2003
6485357 Dual-feed single column double-disk grinding machine Nov. 26, 2002
6447386 Presser roll for surface planner Sep. 10, 2002
6428390 Method and apparatus for edge finishing glass sheets Aug. 6, 2002
6416382 Bilateral automatic machine for edge-machining plates of glass, stone-like materials and the like Jul. 9, 2002
6398629 Bilateral edge-type machine for edge-machining glass or stone-like plate materials and the like Jun. 4, 2002
6386952 Single station blade sharpening method and apparatus May. 14, 2002
6328640 Wafer preparation apparatus including rotatable wafer preparation assemblies Dec. 11, 2001
6277006 Coated media bearing surface for conveying abrasive media and the like Aug. 21, 2001
6277007 Coated media bearing surface for conveying abrasive media and the like Aug. 21, 2001
6250995 Apparatus for polishing outer periphery of workpiece Jun. 26, 2001
6227953 Apparatus for removing burr by multiple-stage grinding machine May. 8, 2001
6213850 Method and apparatus for producing a raw edge belt Apr. 10, 2001
6206763 Deburring machine Mar. 27, 2001
6193592 Integrated double seam grinder for manual welding preparation Feb. 27, 2001

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