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Browse by Category: Main > Chemistry
Class Information
Number: 204/671
Name: Chemistry: electrical and wave energy > Apparatus > Apparatus for electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation) > Concentric electrodes > Cylindrical or annular
Description: Apparatus in which at least the overlapping portions of the concentric electrodes are cylindrical or annular in shape.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7520985 Device for coalescing a fluid Apr. 21, 2009
7476300 Process for extracting and recovering metals from aqueous solutions Jan. 13, 2009
7169282 Dielectrophoresis apparatus Jan. 30, 2007
7166218 Separation device comprising a tubular electrocoalescer Jan. 23, 2007
6956220 Fluid treatment system and radiation sources module for use therein Oct. 18, 2005
6949184 Electrical metal ion generating device Sep. 27, 2005
6702947 Separation device and method comprising a tubular electrocoalescer Mar. 9, 2004
6673321 Apparatus and process for extracting and recovering metals from aqueous solutions Jan. 6, 2004
6652715 High voltage electrostatic field for treatment of flowing liquids Nov. 25, 2003
6524459 Electrode for electron-emitting device Feb. 25, 2003
6417626 Immersed inductively--coupled plasma source Jul. 9, 2002
6342188 Radiation source module and cleaning apparatus therefor Jan. 29, 2002
6332960 Electrostatic fluid purifying device and method of purifying a fluid Dec. 25, 2001
6294137 High voltage electrostatic field for treatment of flowing liquids Sep. 25, 2001
6214204 Ion-removal from water using activated carbon electrodes Apr. 10, 2001
6197177 Water treating apparatus with electro-chemistry process Mar. 6, 2001
6165339 Apparatus and method for controlling molecular cluster in fluid Dec. 26, 2000
6136174 Compact electrostatic coalescer Oct. 24, 2000
5861087 Apparatus for augmenting the coalescence of a component of an oil/water mixture Jan. 19, 1999
5779891 Non-fouling flow through capacitor system Jul. 14, 1998
5762775 Method for electrically producing dispersions of a nonconductive fluid in a conductive medium Jun. 9, 1998
5748437 Fluid separation system with flow-through capacitor May. 5, 1998
5714048 Method and apparatus for oil/water de-emulsification Feb. 3, 1998
5650053 Electrorefining cell with parallel electrode/concentric cylinder cathode Jul. 22, 1997
5647965 Apparatus and method for separating a charged substance from a conductive fluid Jul. 15, 1997
5647981 Device for separating phases of different densities and conductivities by electrocoalescence and centrifugation Jul. 15, 1997
5643469 Process for separating phases of different densities and conductivities by electrocoalescence and centrifugation Jul. 1, 1997
5620597 Non-fouling flow-through capacitor Apr. 15, 1997
5611904 Electrochromatography apparatus Mar. 18, 1997
5593560 Fluid-filtering device for filtering out particulates in fluid Jan. 14, 1997
5575896 Method and apparatus for oil/water separation using a dual electrode centrifugal coalescer Nov. 19, 1996
5565078 Apparatus for augmenting the coalescence of water in a water-in-oil emulsion Oct. 15, 1996
5529675 Electrostatic coalescer testing apparatus Jun. 25, 1996
5501783 Cylindrical electrostatic oil cleaner Mar. 26, 1996
5496458 Electromagnetic enriching device for electrolytes Mar. 5, 1996
5468385 Charged coalescer type oil-water separating apparatus Nov. 21, 1995
5458758 Fluid ionizer Oct. 17, 1995
5437775 Method for preparing high-purity propylene carbonate and for simultaneously making passivated electrodes Aug. 1, 1995
5352343 Separation of the components of liquid dispersions Oct. 4, 1994
5200068 Controlled charge chromatography system Apr. 6, 1993
5192432 Flow-through capacitor Mar. 9, 1993
5122360 Method and apparatus for the production of metal oxide powder Jun. 16, 1992
5089145 Water treatment apparatus and method Feb. 18, 1992
5004531 Treatment of concentrated industrial wastewaters originating from oil shale and the like by electrolysis polyurethane foam interaction Apr. 2, 1991
4948514 Method and apparatus for separating ions from liquids to produce separate diluted and concentrated effluents Aug. 14, 1990
4941962 Electrostatic adsorptive fluid filtering apparatus Jul. 17, 1990
4904412 Emulsion-forming composition Feb. 27, 1990
4786387 Single phase enrichment of super critical fluids Nov. 22, 1988
4722787 Apparatus for contacting two immiscible liquids with the application of an electric field Feb. 2, 1988
4472278 Separating device for an insulating gas-liquid two phase fluid Sep. 18, 1984

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