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Class Information
Number: 209/139.1
Name: Classifying, separating, and assorting solids > Fluid suspension > Gaseous > Vertical current > With deposition
Description: Methods and means in which a vertically flowing gaseous current is employed to assort the material, and provision is made to collect in part or in whole and as one or more grades or classes the material suspended.










Sub-classes under this class:

Class Number Class Name Patents
209/139.2 With centrifugal feed distribution 69


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8668091 Air classifier Mar. 11, 2014
8627960 Apparatus and method for separating materials using air Jan. 14, 2014
8596462 Particle separator Dec. 3, 2013
8590709 Pneumatic classification of mixtures of particulates Nov. 26, 2013
8496114 Trash separator Jul. 30, 2013
8453846 Method for classifying a ground material-fluid mixture and mill classifier Jun. 4, 2013
8403149 Cyclone classifier, flash drying system using the cyclone classifier, and toner prepared by the flash drying system Mar. 26, 2013
8353408 Centrifugal air classifier Jan. 15, 2013
8312994 Cylindrical dedusting apparatus for particulate material Nov. 20, 2012
8307987 Electrostatic material separator Nov. 13, 2012
8281931 Apparatus and method for post-threshing inspection and sorting of tobacco lamina Oct. 9, 2012
8267254 Fluid separator for trash and other materials Sep. 18, 2012
8245963 Grain size selection and/or matter drying apparatus Aug. 21, 2012
8231007 Static classifier cage Jul. 31, 2012
8177070 Air sieving method and apparatus May. 15, 2012
8118170 Particulate size classification apparatus and method Feb. 21, 2012
8109392 Apparatus and method for removing impurities in crushed recycled material Feb. 7, 2012
8100269 Powder classifying device Jan. 24, 2012
8097059 Exhauster bypass system Jan. 17, 2012
8051986 Biomass material Nov. 8, 2011
8016116 Wash down dedusting apparatus Sep. 13, 2011
8016117 System and method for eliminating emissions from an air classification device Sep. 13, 2011
7971725 Apparatus for particle sorting by fluidic vectoring Jul. 5, 2011
7942273 Cross flow air separation system May. 17, 2011
7913851 Separator for grinding mill Mar. 29, 2011
7810646 Air separation of recyclable material Oct. 12, 2010
7780012 Classifier for granular material Aug. 24, 2010
7775370 Particle sorting by fluidic vectoring Aug. 17, 2010
7597200 Apparatus for dry-distributing of fibrous materials Oct. 6, 2009
7584856 Air separation of recyclable material Sep. 8, 2009
7448565 Low profile primary classifier Nov. 11, 2008
7413084 Method and system for separating particulate matter Aug. 19, 2008
7335847 Method and apparatus for foreign-body separation from a material flow Feb. 26, 2008
7267230 Mobile air powered material separator Sep. 11, 2007
7156235 Apparatus for and method of classifying particles discharged from a vertical mill Jan. 2, 2007
7104403 Static two stage air classifier Sep. 12, 2006
6935510 Air separator Aug. 30, 2005
6913689 Methods and apparatus for removing sediment from a liquid using pulses of pressurized air Jul. 5, 2005
6902067 In-shell nut sorting and debris removal assembly Jun. 7, 2005
6889843 Apparatus and methods for controlling the separation of particulate material May. 10, 2005
6883668 Method of automatic debris separation Apr. 26, 2005
6883667 Automatic debris separation system Apr. 26, 2005
6845867 Classifier for the classification of granular material Jan. 25, 2005
6776291 Article and apparatus for particulate size separation Aug. 17, 2004
6739456 Apparatus and methods for separating particles May. 25, 2004
6726020 Method and device for a dry cleansing plant for aluminum reduction furnaces exhaust gas Apr. 27, 2004
6726021 Stopper debris separator Apr. 27, 2004
6644478 Separating wheel Nov. 11, 2003
6607079 System and method for controlling particle flow distribution between the outlets of a classifier Aug. 19, 2003
6595368 Pre-separator for inlets of cascade impactors Jul. 22, 2003

1 2 3 4










 
 
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