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Class Information
Number: 451/326
Name: Abrading > Machine > Tumbling device
Description: Abrading machine or abrading shape for use therewith including means for abrading of one or more workpieces during a series of free fall movements, or propulsions, resulting from forces imparted thereon by a work receptacle in motion (generally rotational), and wherein the abrading contact may be: (a) that of mutual attrition between similarly freely moving work bodies; and/or (b) that between a work body and the receptacle wall structure; and/or (c) that exercised by an encompassing fluent particulate mass.

Sub-classes under this class:

Class Number Class Name Patents
451/328 Drum 119
451/327 Rotating work about vertical axis 95
451/330 Tumbling shapes 38

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8267747 Surface abrasion of objects Sep. 18, 2012
8241095 Abrasion apparatus with an abrading belt and product chambers Aug. 14, 2012
7958900 Scrubbing machine for cleaning instruments Jun. 14, 2011
7883396 Vibratory tumblers for processing workpieces and methods for packaging and constructing such tumblers Feb. 8, 2011
7874897 Gemstone flat polisher mechanized Jan. 25, 2011
7854648 Cleaning medium and dry cleaning apparatus using the same Dec. 21, 2010
7674155 Process and apparatus for artificially ageing blocks Mar. 9, 2010
7404755 Process and apparatus for artificially ageing blocks Jul. 29, 2008
7290304 Apparatus for cleaning internal components of electronic equipment Nov. 6, 2007
7144309 Rotational processor with drive rollers Dec. 5, 2006
7128639 Process and apparatus for the artificial aging of stones Oct. 31, 2006
7118454 Machine and method for finishing automotive wheels Oct. 10, 2006
7056197 Dry surface treating apparatus and dry surface treating method using the same apparatus Jun. 6, 2006
6945852 Method for finishing automotive wheels and resulting wheels Sep. 20, 2005
6926594 Shot blast machine Aug. 9, 2005
6899605 Grinding machine May. 31, 2005
6875081 Method of manufacturing a tool using a rotational processing apparatus Apr. 5, 2005
6843260 Vibrating abrasive cleaning apparatus and method Jan. 18, 2005
6814654 Machine for drying, polishing and burnishing cutlery and metal tableware Nov. 9, 2004
6808439 Vibratory finisher with blasting nozzle Oct. 26, 2004
6733374 Grinding machine May. 11, 2004
6733375 Horizontal finishing machine May. 11, 2004
6688953 Barrel polishing apparatus Feb. 10, 2004
6688952 Machine and method for finishing automotive wheels Feb. 10, 2004
6682410 Barrel container for use with dry barrel polishing Jan. 27, 2004
6682401 Method of forming an escape layer and a method of adjusting a gap in a spiral-flow barrel finishing machine Jan. 27, 2004
6656027 Grinding machine Dec. 2, 2003
6618890 Universal cleaning apparatus Sep. 16, 2003
6599176 High speed centrifugal processor Jul. 29, 2003
6585577 Vibrating abrasive cleaning apparatus and method Jul. 1, 2003
6575814 Dry polishing of intraocular lenses Jun. 10, 2003
6520837 Method and apparatus for ultrafine grinding and/or mixing of solid particles Feb. 18, 2003
6464565 Method of polishing sterling silver and gold pieces Oct. 15, 2002
6431955 Method, device and plant for cleaning irregular pieces consisting of different materials Aug. 13, 2002
6379233 Spiral-flow barrel finishing machine with gap adjusting function Apr. 30, 2002
6350189 Grinding device Feb. 26, 2002
6328639 System for abrasively cleaning small parts and a container for holding small parts undergoing abrasive cleaning Dec. 11, 2001
6299509 Tumble medium and method for surface treatment Oct. 9, 2001
6296556 Centrifugal slide grinder Oct. 2, 2001
6277011 Deburring, burnishing and polishing machine with conveyor belt drive Aug. 21, 2001
6270398 Vibrational magnetic polishing machine Aug. 7, 2001
6261154 Method and apparatus for media finishing Jul. 17, 2001
6231426 Magnetic polishing machine May. 15, 2001
6220947 Tumble medium and method for surface treatment Apr. 24, 2001
6213854 Centrifugal force sliding grinding machine with gap adjustment Apr. 10, 2001
6210258 Vibrational finishing assembly Apr. 3, 2001
6165059 Abrasive medium with selected density Dec. 26, 2000
6095901 Polishing method for soft acrylic articles Aug. 1, 2000
6080052 Machine for finishing nonmagnetic components Jun. 27, 2000
5989109 Seal protecting method for use with spiral-flow barrel finishing machine and spiral-flow barrel finishing machine with seal protecting apparatus Nov. 23, 1999

1 2 3

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