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Class Information
Number: 241/80
Name: Solid material comminution or disintegration > Apparatus > With separation or classification of material > Separator in discharge from comminuting zone > Oversize return to comminuting zone
Description: Apparatus in which material classified as oversize in the separator is conveyed back to the comminuting zone for retreatment.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8672248 Asphalt material recycling system and method with ball screener and impact and cutting choppers Mar. 18, 2014
8535485 Apparatus and process for wet crushing oil sand Sep. 17, 2013
8210458 Recirculating grinding mill with external risers Jul. 3, 2012
8146841 Production of clean glass particles from post-consumer waste Apr. 3, 2012
8113450 Pulverization/dispersion processing system Feb. 14, 2012
8079538 Cementitous composition and apparatus and method for manufacturing the same Dec. 20, 2011
8066211 Closed-circuit grinding plant having sifter and fine material settling device Nov. 29, 2011
8020798 Pulverizer Sep. 20, 2011
7971815 Milling station and method for grinding milling material Jul. 5, 2011
7967226 Drying mill and method of drying ground material Jun. 28, 2011
7823810 Method and device for the production and/or conditioning of powdered material Nov. 2, 2010
7775465 Method and apparatus for grinding iron ore or iron ore concentrate Aug. 17, 2010
7775466 Production of glass powder from waste glass, and products made using the same, especially concrete Aug. 17, 2010
7690591 Roller mill Apr. 6, 2010
7665681 Fine grinding roller mill Feb. 23, 2010
7661611 Toner and method for producing the same Feb. 16, 2010
7654396 Classifier, vertical crusher having the classifier, and coal fired boiler apparatus having the vertical crusher Feb. 2, 2010
7624936 Granular material grinder and method of use Dec. 1, 2009
7487929 Grinding circuit with cyclone and density separator classification system and method Feb. 10, 2009
7461799 Method for industrial producing of highly dispersed powders Dec. 9, 2008
7438245 Milling and classifying apparatus, collision mill, air classifier, toner, and method for producing toner Oct. 21, 2008
7370820 Method and system for harvesting weighting agent fines May. 13, 2008
7300007 Circulating grinding plant comprising a mill and a sifter Nov. 27, 2007
7264185 Dry grinding system and dry grinding method Sep. 4, 2007
7240867 Processing system for manufacturing composite cementitious materials with reduced carbon dioxide emissions Jul. 10, 2007
7083130 Dry grinding system and dry grinding method Aug. 1, 2006
7073737 Tube grinder and method for comminuting lumpy grinding stock Jul. 11, 2006
6988683 Apparatus for crushing glass or ceramic material Jan. 24, 2006
6969017 Comminuting apparatus Nov. 29, 2005
6902126 Hybrid turbine classifier Jun. 7, 2005
6820829 Method and apparatus for separating material Nov. 23, 2004
6789756 Vortex mill for controlled milling of particulate solids Sep. 14, 2004
6786437 Closed loop cyclonic mill, and method and apparatus for drying and fiberizing material Sep. 7, 2004
6719610 Method and device for grinding particulates Apr. 13, 2004
6666394 Milling installation Dec. 23, 2003
6644570 Downstream pneumatic recirculation comminuting apparatus Nov. 11, 2003
6644573 Comminuting apparatus and pneumatic recirculation systems for comminuting apparatus Nov. 11, 2003
6557790 Circuit grinding apparatus with high-pressure roller mill and sifter May. 6, 2003
6543709 Gravity flow air classifying mill Apr. 8, 2003
6508420 Method and device for two-stage classification of granular material Jan. 21, 2003
6491241 Device for the dispersal and charging of fluidized powder Dec. 10, 2002
6457659 Roller press grinding plant Oct. 1, 2002
6446888 Grinding apparatus with vertical static separators Sep. 10, 2002
6443376 Apparatus for pulverizing and drying particulate matter Sep. 3, 2002
6439486 Method and apparatus for disposing of waste Aug. 27, 2002
6415998 Circuit grinding apparatus with high pressure roller mill and sifter Jul. 9, 2002
6415999 Cutting mill Jul. 9, 2002
6398139 Process for fluidized-bed jet milling, device for carrying out this process and unit with such a device for carrying out this process Jun. 4, 2002
6375103 Mill for pulverizing and classifying particulate material Apr. 23, 2002
6357680 Self-feeding comminuting apparatus having improved drive motor features Mar. 19, 2002

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