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Class Information
Number: 209/725
Name: Classifying, separating, and assorting solids > Fluid suspension > Liquid > Grading deposition > Rotational hydrodynamic extraction (e.g., unidirectional hydrocyclone, vortical, whirlpool, etc.)
Description: Methods and apparatus wherein a liquid suspension of material is caused to circulate about an axis creating sufficient centrifugal or centripetal forces to promote deposition of entrained or suspended material into respective grades or classes of solids.










Sub-classes under this class:

Class Number Class Name Patents
209/726 Including condition responsive control 40
209/727 Including oppositely directed axial flows around evacuated core (e.g., hydrocyclone having reverse free-vortexes formed, etc.) 123


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8701896 Hydroclone based fluid filtration system Apr. 22, 2014
8627963 Hydrocyclone reject orifice treated to prevent blockage Jan. 14, 2014
8622225 Fluid purification using hydraulic vortex system Jan. 7, 2014
8617405 Separator and method of separation Dec. 31, 2013
8561813 Cyclonic debris evacuation apparatus and method for a pump Oct. 22, 2013
8505747 Cyclonic debris evacuation apparatus and method for a pump Aug. 13, 2013
8434626 System and related method for concentrating biological culture and circulating biological culture and process fluid May. 7, 2013
8353411 Hydrocyclone Jan. 15, 2013
8317033 Method and device for concentrating substances in solid particle state Nov. 27, 2012
8293120 Wet cyclone particle collector Oct. 23, 2012
8286805 Method and apparatus for fluid separation Oct. 16, 2012
8202352 Wetted wall cyclone system and methods Jun. 19, 2012
8201697 Hydroclone based fluid filtration system Jun. 19, 2012
8097051 Separator for liquids, in particular condensate, from liquid-loaded compressed gases Jan. 17, 2012
8092692 Apparatus and method for separating immiscible fluid components Jan. 10, 2012
7997419 Fluidizing apparatus Aug. 16, 2011
7967991 Cyclonic flow separator Jun. 28, 2011
7938271 Method for preparing powdered still slops, resulting material and facility for preparing such powdered still slops May. 10, 2011
7934606 Induced vortex particle separator May. 3, 2011
7900779 Particle classifier Mar. 8, 2011
7896169 Hydroclone based fluid filtration system Mar. 1, 2011
7844400 System for sampling fluid from a well with a gas trap Nov. 30, 2010
7770738 Classifying device and method of classification Aug. 10, 2010
7708146 Hydrocyclone and associated methods May. 4, 2010
7632416 Hydroclone based fluid filtration system Dec. 15, 2009
7514011 System for separating solids from a fluid stream Apr. 7, 2009
7503458 Cyclone, apparatus for separating slurry having the cyclone, and system and method of supplying slurry using the apparatus Mar. 17, 2009
7481318 Apparatus and process for coalescing bitumen in an oil sand slurry Jan. 27, 2009
7481932 Water treatment apparatus Jan. 27, 2009
7429327 Clarifying tank Sep. 30, 2008
7413669 Separator for liquids and/or multiphase fluids Aug. 19, 2008
7404492 Separation of fibre pulp suspensions containing relatively heavy contaminants Jul. 29, 2008
7314559 Separator Jan. 1, 2008
7306730 Cyclone-type separator for separating foreign matters by utilizing a centrifugal force Dec. 11, 2007
7279098 Water treatment apparatus Oct. 9, 2007
7241387 Solids separator Jul. 10, 2007
7172706 Liquid separator Feb. 6, 2007
7169305 Advanced liquid vortex separation system Jan. 30, 2007
7147788 Separating a hydrocarbon production stream into its oil, water and particle constituents Dec. 12, 2006
7111738 Technique for enhancing the effectiveness of slurried dense media separations Sep. 26, 2006
7041218 Static device and method of making May. 9, 2006
7028848 Feeding method and apparatus for dynamic separators Apr. 18, 2006
7011219 Erosion-resistant hydrocyclone liner Mar. 14, 2006
7004333 Process for the separation of hollow glass microspheres from muds containing them Feb. 28, 2006
6953123 Pre-separation of feed material for hindered-bed separator Oct. 11, 2005
6878545 Method for separating viable cells from cell suspensions Apr. 12, 2005
6852239 Energy-efficient duct, head cell with duct and methods Feb. 8, 2005
6848582 Longitudinal micrometric separator for classifying solid particulate materials Feb. 1, 2005
6840383 Particle separating apparatus Jan. 11, 2005
6837990 Vacuum cyclone for off-loading shrimp and other small seafood Jan. 4, 2005

1 2 3 4










 
 
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