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Class Information
Number: 451/327
Name: Abrading > Machine > Tumbling device > Rotating work about vertical axis
Description: Abrading machine provided with an annular and/or spiral-shaped structure which causes the workpieces to move about a vertical axis in an annular and/or spiral path.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8568200 Ultra-low temperature magnetic polishing machine Oct. 29, 2013
8550882 Game ball surface treatment apparatus Oct. 8, 2013
8267747 Surface abrasion of objects Sep. 18, 2012
7883396 Vibratory tumblers for processing workpieces and methods for packaging and constructing such tumblers Feb. 8, 2011
7871307 Fluid barrel-polishing device and polishing method Jan. 18, 2011
7549912 Method of finishing cutting elements Jun. 23, 2009
7258833 High-energy cascading of abrasive wear components Aug. 21, 2007
7201638 Environmental control system for a centrifugal processor Apr. 10, 2007
7140947 Barrel polishing method and barrel polishing apparatus Nov. 28, 2006
7014533 Method for smoothing the surface of a gas turbine blade Mar. 21, 2006
6899605 Grinding machine May. 31, 2005
6875081 Method of manufacturing a tool using a rotational processing apparatus Apr. 5, 2005
6733374 Grinding machine May. 11, 2004
6688953 Barrel polishing apparatus Feb. 10, 2004
6666757 Centrifugal barrel finishing machine Dec. 23, 2003
6656027 Grinding machine Dec. 2, 2003
6379233 Spiral-flow barrel finishing machine with gap adjusting function Apr. 30, 2002
6350189 Grinding device Feb. 26, 2002
6296556 Centrifugal slide grinder Oct. 2, 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
6213854 Centrifugal force sliding grinding machine with gap adjustment Apr. 10, 2001
6174220 Method of manufacturing surgical needles having blunt tips Jan. 16, 2001
6110020 Machine for drying, polishing and burnishing cutlery and metal tableware Aug. 29, 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
5848929 Centrifugal finisher with fixed outer vessel and rotatable inner vessel Dec. 15, 1998
5823861 Spiral-flow barrel finishing machine Oct. 20, 1998
5733172 Dry barrel finishing machine having a device to wet media Mar. 31, 1998
5662034 Potato peeling system Sep. 2, 1997
5601475 Method of manufacturing surgical needles having blunt tips Feb. 11, 1997
5487696 Apparatus for polishing medals for game machine and for separating abrasive therefrom Jan. 30, 1996
5476415 Dry barrel finishing machine Dec. 19, 1995
5419735 Magnetic barrel finishing machine May. 30, 1995
5355638 Traction drive centrifugal finisher Oct. 18, 1994
5211673 Centrifugal treatment machine May. 18, 1993
5117850 Device for surface treating of metal parts Jun. 2, 1992
5046287 Wet grinding type of grinder with improved material discharge mechanism Sep. 10, 1991
5012619 Method and apparatus for forming spheres May. 7, 1991
5012620 Centrifugal finishing apparatus embodying improved seal and method May. 7, 1991
4958776 Centrifugal-force vibratory grinding machine Sep. 25, 1990
4939871 Centrifugal processing machine Jul. 10, 1990
4905416 Reversing weight assembly for a vibratory bowl finishing machine Mar. 6, 1990
4884372 Centrifugal finishing apparatus embodying improved seal and method Dec. 5, 1989
4850151 Centrifugal treatment apparatus Jul. 25, 1989
4830289 Centrifugal fluidized grinding apparatus May. 16, 1989
4828394 Relating to vibratory machines May. 9, 1989
4803811 Lapping device for surface enhancement of bulk material Feb. 14, 1989
4693037 Multistage finishing device and method Sep. 15, 1987

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