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Class Information
Number: 204/665
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) > With filter (e.g., electrostatic filter, etc.)
Description: Apparatus in which a foraminous or porous mass (e.g., electrostatic filter, etc.) is used to physically trap one or more constituents while allowing the remaining liquid to pass therethrough.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7572369 |
System for supporting denitrification |
Aug. 11, 2009 |
| 7517448 |
Recycling cool water filter |
Apr. 14, 2009 |
| 7438804 |
Coagulation treatment apparatus |
Oct. 21, 2008 |
| 7402239 |
Water purification apparatus and method of using the same |
Jul. 22, 2008 |
| 7381328 |
Effluent treatment combining solid/liquid separation and pulsed electric fields |
Jun. 3, 2008 |
| 7374603 |
Particle transport and near field analytical detection |
May. 20, 2008 |
| 7288185 |
Magnetic energy wave device |
Oct. 30, 2007 |
| 7235123 |
Particle transport and near field analytical detection |
Jun. 26, 2007 |
| 6951606 |
Auxiliary filtration system for an engine |
Oct. 4, 2005 |
| 6905608 |
Advanced electrodeionization for fluid recycling |
Jun. 14, 2005 |
| 6871744 |
Apparatus for electrodewatering |
Mar. 29, 2005 |
| 6843914 |
Filtration apparatus and process |
Jan. 18, 2005 |
| 6787043 |
Water purification system and method |
Sep. 7, 2004 |
| 6752925 |
Filter device with an electrically grounded ceramic membrane filter element |
Jun. 22, 2004 |
| 6736965 |
Auxiliary filtration system and filtering method |
May. 18, 2004 |
| 6692627 |
Electrical field flow fractionation (EFFF) using an electrically insulated flow channel |
Feb. 17, 2004 |
| 6673321 |
Apparatus and process for extracting and recovering metals from aqueous solutions |
Jan. 6, 2004 |
| 6582592 |
Apparatus for removing dissolved metals from wastewater by electrocoagulation |
Jun. 24, 2003 |
| 6576107 |
Electrostatic filter for dielectric fluid |
Jun. 10, 2003 |
| 6576460 |
Filtration-detection device and method of use |
Jun. 10, 2003 |
| 6514406 |
Water treatment apparatus |
Feb. 4, 2003 |
| 6428697 |
System for processing waste water |
Aug. 6, 2002 |
| 6284118 |
Electrostatic filter for dielectric fluid |
Sep. 4, 2001 |
| 6200449 |
Water treating apparatus with electro-chemistry process |
Mar. 13, 2001 |
| 6165360 |
Method and device for dehydrating heavy oils |
Dec. 26, 2000 |
| 6129829 |
Electrostatic filter for dielectric fluid |
Oct. 10, 2000 |
| 6017439 |
Method and apparatus for separating liquid mixtures using intermittent heating |
Jan. 25, 2000 |
| 5989436 |
Method and device for dehydrating heavy oils |
Nov. 23, 1999 |
| 5958213 |
Water treatment method and apparatus for water containing oil droplets |
Sep. 28, 1999 |
| 5951856 |
Water hardness reduction through interactive molecular agitation and filtration |
Sep. 14, 1999 |
| 5914021 |
Apparatus and method for continuous extraction of a charged substance from a conductive fluid |
Jun. 22, 1999 |
| 5891315 |
Filter system for removal of particles from hydrocarbonfluids |
Apr. 6, 1999 |
| 5788827 |
Means and method for removing particulate matter from nonconductive liquids |
Aug. 4, 1998 |
| 5647965 |
Apparatus and method for separating a charged substance from a conductive fluid |
Jul. 15, 1997 |
| 5645704 |
Electrostatic filter device |
Jul. 8, 1997 |
| 5630926 |
Electrostatic filter |
May. 20, 1997 |
| 5613239 |
Method and apparatus for decomposing organic solutions composed of chelating solutions and/or organic acids containing radioactive metal ions and collection method and apparatus using the same |
Mar. 18, 1997 |
| 5597479 |
Electro-coalescence/magnetic separation (ECMS) system and components for removal of contaminants from water streams, including desalinization |
Jan. 28, 1997 |
| 5593560 |
Fluid-filtering device for filtering out particulates in fluid |
Jan. 14, 1997 |
| 5571399 |
Electrostatic fluid filter and system |
Nov. 5, 1996 |
| 5556522 |
Filter assembly |
Sep. 17, 1996 |
| 5538611 |
Planar, flow-through, electric, double-layer capacitor and a method of treating liquids with the capacitor |
Jul. 23, 1996 |
| 5538611 |
Planar, flow-through, electric, double-layer capacitor and a method of treating liquids with the capacitor |
Jul. 23, 1996 |
| 5501783 |
Cylindrical electrostatic oil cleaner |
Mar. 26, 1996 |
| 5468385 |
Charged coalescer type oil-water separating apparatus |
Nov. 21, 1995 |
| 5458758 |
Fluid ionizer |
Oct. 17, 1995 |
| 5447626 |
Water activator |
Sep. 5, 1995 |
| 5443709 |
Apparatus for separating caffeine from a liquid containing the same |
Aug. 22, 1995 |
| 5376279 |
Filtration using ionically and electrically conductive depth filter |
Dec. 27, 1994 |
| 5372690 |
Apparatus for removing contaminants from an aqueous medium |
Dec. 13, 1994 |
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