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Class Information
Number: 210/269
Name: Liquid purification or separation > Particulate material type separator, e.g., ion exchange or sand bed > With rehabilitation means
Description: Apparatus in which means is provided for restoring the separating medium to the condition it was in before separation.










Sub-classes under this class:

Class Number Class Name Patents
210/275 Backwash or blowback means 287
210/274 Including means to apply gas to bed 194
210/270 Movable means for particle pickup and redeposit 16
210/271 Surface traversing type 27
210/281 With access opening to normally closed casing 25
210/280 With agitator 25


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8658036 Composite filtration and demineralization apparatus Feb. 25, 2014
8641906 Method and system for distributing and collecting fluids in a multi-stage column Feb. 4, 2014
8608963 Twin tank water treatment system and method Dec. 17, 2013
8574439 Valuable resource recovery system and operation method thereof Nov. 5, 2013
8518253 Ion-exchange device and regeneration method of ion-exchange material thereof Aug. 27, 2013
8500999 System for water treatment regeneration stage Aug. 6, 2013
8440074 Wastewater treatment system including irradiation of primary solids May. 14, 2013
8394267 Water treatment equipment for recovering phosphorus from water Mar. 12, 2013
8388840 System for stiffening the plates of a large-diameter multi-stage column Mar. 5, 2013
8323514 Method and system for cleaning filter media support structures Dec. 4, 2012
8323505 System and method for wastewater treatment Dec. 4, 2012
8216458 Device for dewatering a hydraulic fluid Jul. 10, 2012
8152998 Screenless granular media filters and methods of use Apr. 10, 2012
8142650 Water treatment system Mar. 27, 2012
8133385 Grey water treatment system Mar. 13, 2012
8114275 Regeneration tank for water softeners Feb. 14, 2012
8110116 Water treatment apparatus and a method for cleaning a filter layer of a water treatment apparatus Feb. 7, 2012
8034244 High efficiency ion exchange system for removing arsenic contaminants from water Oct. 11, 2011
8012359 Filtration apparatus Sep. 6, 2011
7972509 Washbox Jul. 5, 2011
7959813 Continuous fluid treatment system and method Jun. 14, 2011
7947170 Apparatus for treatment of chemical mechanical polishing fluid May. 24, 2011
7922903 System and method for uniformly distributing a fluid through a filter bed in a filter Apr. 12, 2011
7914683 Particles of spilled oil-absorbing carbon in contact with water Mar. 29, 2011
7897040 Washbox Mar. 1, 2011
7862715 Apparatus for removing undesirable components from a contaminated solution containing both desirable and undesirable components Jan. 4, 2011
7862726 Method for regenerating ionic exchange resins used for softening water and device for softening water Jan. 4, 2011
7815794 Water softener salt loading system Oct. 19, 2010
7790024 Apparatus for the electrochemical regeneration of absorbents Sep. 7, 2010
7767078 System for treating produced water Aug. 3, 2010
7754070 High efficiency ion exchange system for removing nitrate contaminants from water Jul. 13, 2010
7736506 System and method for uniformly distributing a fluid through a filter bed in a filter Jun. 15, 2010
7718054 Water treatment system May. 18, 2010
7608183 Control valve assembly Oct. 27, 2009
7563362 Auto-regenerable hot and cold water softener Jul. 21, 2009
7374676 High rate filtration system May. 20, 2008
7361281 High efficiency ion exchange system and method for removing chromium from water Apr. 22, 2008
7332080 Apparatus for salt free water softening Feb. 19, 2008
7329338 Conductivity sensor for an ion exchange water softener Feb. 12, 2008
7300569 Water treatment system Nov. 27, 2007
7285220 Water softener Oct. 23, 2007
7276160 Method and apparatus for metal removal by ion exchange Oct. 2, 2007
7273555 Process for continuous ion exchange Sep. 25, 2007
7267767 Filtration apparatus Sep. 11, 2007
7252761 Filtration installation for filtering the water of a water pool Aug. 7, 2007
7144510 Method and apparatus for treatment of a fluid stream Dec. 5, 2006
7108784 Apparatus for removal and destruction of ammonia from an aqueous medium Sep. 19, 2006
7090771 Filtration system underdrain Aug. 15, 2006
7045057 Preparation of homogeneously loaded ion exchangers May. 16, 2006
6984327 System and method for separating heavy isotopes of hydrogen oxide from water Jan. 10, 2006

1 2 3 4 5










 
 
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