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Class Information
Number: 210/284
Name: Liquid purification or separation > Particulate material type separator, e.g., ion exchange or sand bed > Spaced beds
Description: Apparatus which comprises a plurality of beds of particulate material which are spaced from each other.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
6024871 Single-phase fluid distributor-mixer-extractor for beds of granular solids Feb. 15, 2000
6013180 Mineral filtering apparatus Jan. 11, 2000
6013181 Water filtration system Jan. 11, 2000
6001262 Cascade ion exchange for high purity water production Dec. 14, 1999
5980752 Water purification system for hot tubs and the like Nov. 9, 1999
5972214 Column with distributor for allowing independent injection and/or removal of fluids Oct. 26, 1999
5972216 Portable multi-functional modular water filtration unit Oct. 26, 1999
5965016 Fluidized bed aquarium filtration system Oct. 12, 1999
5948253 Three layer hydrocarbon filter Sep. 7, 1999
5944989 Split-flow water filtration apparatus Aug. 31, 1999
5938933 Condensate drain pan for HVAC units Aug. 17, 1999
5928506 Water purifier for drinking water Jul. 27, 1999
5908558 Method and apparatus for removing contaminants from fluid columns Jun. 1, 1999
5895570 Modular filtering system Apr. 20, 1999
5873997 Bioreactor and method of measuring contaminants in an aqueous environment Feb. 23, 1999
5873996 Community drinking water purification system Feb. 23, 1999
5868924 Water purifier Feb. 9, 1999
5865998 Receiver-dryer assembly and desiccant bag therefor Feb. 2, 1999
5866009 Apparatus for purifying water from organic halides contained therein Feb. 2, 1999
5853578 Method for biological purification of liquids and biological filter for purification of liquids Dec. 29, 1998
5851389 Apparatus for removing a contaminant from a fluid stream Dec. 22, 1998
5846411 Single-phase fluid distributor-mixer-extractor for beds of granular solids Dec. 8, 1998
5843308 Wastewater management system Dec. 1, 1998
5833846 High-purity water producing apparatus utilizing boron-selective ion exchange resin Nov. 10, 1998
5827427 Tank assembly Oct. 27, 1998
5820762 Filter insert for a storm drain Oct. 13, 1998
5807488 Exchangeable filter medium container and method of connecting and recycling such containers Sep. 15, 1998
5800707 Water filter Sep. 1, 1998
5800709 Biological aerated filters Sep. 1, 1998
5776346 Method and apparatus for making water having purified and activated functions Jul. 7, 1998
5776340 Apparatus for minimizing wastewater discharge Jul. 7, 1998
5766465 Water treatment apparatus Jun. 16, 1998
5755960 Distributor allowing independent injection and/or removal of fluids May. 26, 1998
5718015 Mobile power wash device with water reclamation and hydrocarbon removal apparatus Feb. 17, 1998
5681454 Liquid processing plant Oct. 28, 1997
5676826 Fluid-solid contacting apparatus Oct. 14, 1997
5670046 Treatment of nutrient-rich water Sep. 23, 1997
5653944 Slurry filtration device and flue-gas desulfurization system Aug. 5, 1997
5645725 Process and device for the biological treatment of organically polluted waste water and organic waste Jul. 8, 1997
5635063 Water treatment apparatus Jun. 3, 1997
5632885 Hydrogen peroxide removal equipment capable of treating both waste water and waste gas May. 27, 1997
5618419 Filter cartridge with back structure defining a weir Apr. 8, 1997
5599455 Detergent-free washing water, method and apparatus for making the washing water, and water/oil separation method for separating matters emulsified with the washing water into water and oil pha Feb. 4, 1997
5599443 Apparatus for waste water treatment using charcoal biologically activated Feb. 4, 1997
5595665 Process vessel head flush apparatus Jan. 21, 1997
5580445 Continuous ion exchange apparatus Dec. 3, 1996
5569380 Portable water filtering device Oct. 29, 1996
5562824 Gravity water purifier Oct. 8, 1996
5552057 Water-purifying device Sep. 3, 1996
5552043 Water conditioning system Sep. 3, 1996

1 2 3 4 5 6 7










 
 
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