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Class Information
Number: 241/284
Name: Solid material comminution or disintegration > Apparatus > Mutual attrition or compression comminutors
Description: Apparatus in which (1) portions of the material are caused to move relatively with respect to other portions to effect comminution by attrition, or (2) portions of the material are subjected to pressure against other portions thereof, or (3) the material is subjected to the combined action of both attrition and compression.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8561927 Pneumatic continuous impact pulverizer Oct. 22, 2013
8464969 Method of making proppants used in gas or oil extraction Jun. 18, 2013
8161904 Direct coating solid dosage forms using powdered materials Apr. 24, 2012
8020798 Pulverizer Sep. 20, 2011
7984866 Relocatable oil sand slurry preparation system Jul. 26, 2011
7566017 Apparatus for discharging material from a mill Jul. 28, 2009
7497392 Process and apparatus for transforming waste materials into fuel Mar. 3, 2009
7497395 Rock grinding mill and method Mar. 3, 2009
7121487 Screening apparatus with hammermill Oct. 17, 2006
6923391 Pulverizer Aug. 2, 2005
6745960 Centrifugally rolling granulating device and method of treating powder and granular material using the device Jun. 8, 2004
6708909 Separation device for unburned carbon in fly ash and separation method Mar. 23, 2004
6202949 Pulverizer assembly Mar. 20, 2001
5906321 Non-ferrous metals cleaning system May. 25, 1999
5839674 Apparatus and process for decompressing blocks of particulate materials such as blocks of compressed horticultural materials Nov. 24, 1998
5538195 Device for granulating and coating and baffle device for same Jul. 23, 1996
5255858 Milling method and milling device Oct. 26, 1993
5119994 Method and apparatus for the processing of medical waste materials Jun. 9, 1992
5037034 Mica delaminator Aug. 6, 1991
4974781 Method and apparatus for preparing paper-containing and plastic-containing waste materials for component fraction separation Dec. 4, 1990
4934613 Apparatus for crushing brittle material for grinding Jun. 19, 1990
4848677 Comminution/recovery ore mill Jul. 18, 1989
4749133 Apparatus for the pulverization and burning of solid fuels Jun. 7, 1988
4744525 Device for regulating the retention time of the material in a grinding mill May. 17, 1988
4662571 Mineral impact breaking apparatus May. 5, 1987
4651933 Cone crusher Mar. 24, 1987
4637558 Vibratory decoring apparatus for castings Jan. 20, 1987
4635860 Rotative grizzly for oil sand separation Jan. 13, 1987
4632316 Method and apparatus for electromagnetically crushing, mixing and stirring substances by changing the electromagnetic field intensity level Dec. 30, 1986
4632315 Method and apparatus for electromagnetically crushing, mixing and stirring substances by employing a mechanical driver Dec. 30, 1986
4625921 Comminuting Dec. 2, 1986
4616785 Method of and apparatus for debarking wood chips Oct. 14, 1986
4616786 Plant for processing surplus concrete Oct. 14, 1986
4601431 Traveling magnetic field type crusher Jul. 22, 1986
4582263 Apparatus for mixing or granulation of particles Apr. 15, 1986
4582268 Apparatus for treating a granular substance, especially nuclear reactor fuel in powder form, and method for operating the apparatus Apr. 15, 1986
4571963 Material treatment apparatus Feb. 25, 1986
4562970 Apparatus for opening and closing the outlet aperture of a processing machine Jan. 7, 1986
4561598 Apparatus for grinding, milling, crushing, scrubbing, sizing and/or classifying material Dec. 31, 1985
4553703 Machine and process for grinding granular particles Nov. 19, 1985
4527747 Method and vibratory chute for treating goods Jul. 9, 1985
4520964 Waste comminuting apparatus Jun. 4, 1985
4515316 Method of withdrawing particulate material from dead-bed of centrifugal crusher and centrifugal crusher suitable for carrying the method into practice May. 7, 1985
4515319 Dual-inclined lifters for autogenous mills May. 7, 1985
4487372 Thermal sand reclamation system Dec. 11, 1984
4482096 Apparatus for producing cementitious product from quenched fly ash Nov. 13, 1984
4480797 Installation for treatment of waste metal and liquid dross Nov. 6, 1984
4448358 High speed fluid grinding and disperser mill May. 15, 1984
4441659 Arrangement in drum mills Apr. 10, 1984
4434942 Process and apparatus for attrition carried out in a humid medium Mar. 6, 1984

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