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Class Information
Number: 209/13
Name: Classifying, separating, and assorting solids > Plural, diverse separating operations > Aqueous suspension, sifting, and stratifying
Description: Methods and apparatus which include aqueous suspension, sifting, and stratifying.

Patents under this class:

Patent Number Title Of Patent Date Issued
8673208 Process and equipment for the production of direct reduced iron and/or pig iron from iron ores having a high-phosphorus content Mar. 18, 2014
8636841 Cement manufacturing apparatus and method Jan. 28, 2014
8517177 Systems and methods for recovering materials from soil Aug. 27, 2013
8292085 Run-of-mine coal separator Oct. 23, 2012
8251225 Harvesting of processed carbon nanotubes Aug. 28, 2012
7999012 Fluid based decommissioning and recycling of printer toner cartridges Aug. 16, 2011
7975850 Apparatus and method for separating sand from a manure slurry Jul. 12, 2011
7923039 Biopolymer extraction from plant materials Apr. 12, 2011
7770738 Classifying device and method of classification Aug. 10, 2010
7571815 Sieve jigger Aug. 11, 2009
7469846 Wet-mechanical treatment of mixed waste Dec. 30, 2008
7438188 Device for use in placer mining operations and method Oct. 21, 2008
6938776 Method and a device for the separation of particles Sep. 6, 2005
6866074 Sand tank Mar. 15, 2005
6758342 Cereal grain sorting system and roll sorting machine Jul. 6, 2004
6561359 Method and apparatus for removing lightweight particulates during processing of a primary material May. 13, 2003
6264039 Method for precious metal recovery from slag Jul. 24, 2001
6156083 Coal reclamation systems Dec. 5, 2000
6119866 Process and device for separation of wanted materials from product mixes which contain floating/absorbent material and metals with a ferromagnetic content Sep. 19, 2000
5817230 Method for improving the pozzolanic character of fly ash Oct. 6, 1998
5720393 Method and apparatus for the separation of manure and sand Feb. 24, 1998
5476177 Sluice trap Dec. 19, 1995
5361910 Modified mineral jig Nov. 8, 1994
5273162 Method and apparatus for separating material from a fluid Dec. 28, 1993
5246116 Method and apparatus for separation and recovery of the components from foil-containing laminates Sep. 21, 1993
5024770 Waste separating, processing and recycling system Jun. 18, 1991
4839034 Beneficiator for recovery of metal fractions from particulate gangue Jun. 13, 1989
4529506 Method for cleaning fine coal Jul. 16, 1985
4505811 Mineral processing apparatus Mar. 19, 1985
4219409 Inlet line deflector and equalizer means for a classifying cyclone used for washing and method of washing using deflectors and equalizers Aug. 26, 1980
4217207 Continuous method of cleaning a slurry of crushed raw coal Aug. 12, 1980
4203831 6/30 Coal washing plant May. 20, 1980
4136018 Vortex separator with coaxial inlet and lightweight reject pipelines Jan. 23, 1979
4128474 Process for cleaning and dewatering fine coal Dec. 5, 1978
4101419 Separator for separating higher density metal values from earthen material Jul. 18, 1978
4076614 Inclined, vibrated, sifter and stratifier with gates Feb. 28, 1978
4070274 Coarse concentrated iron ore for catalytic purposes Jan. 24, 1978
4067953 Process for upgrading ores containing baddeleyite Jan. 10, 1978

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