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| Number | Title | Issue Date |
| 6656364 | Method for purifying contaminated liquids The invention relates to a method for cleaning liquids containing impurities. Adsorbents are added to the liquid, which adsorb the impurity. Several particles of adsorbent are agglomerated with the impurities adsorbed therein/thereon to form greater parti... | 12/02/2003 |
| 6576107 | Electrostatic filter for dielectric fluid An electrostatic filter for removing contaminants from a dielectric fluid when the filter comprises a plurality of electrically conductive plates positioned in a housing and having filter media disposed between the plates so that during the operation of t... | 06/10/2003 |
| 6284118 | Electrostatic filter for dielectric fluid An electrostatic filter for removing contaminants from a dielectric fluid when the filter comprises a plurality of electrically conductive plates positioned in a housing and having filter media disposed between the plates so that during the operation of t... | 09/04/2001 |
| 6126803 | Method for removing particulate from a liquid silicon containing compound A method for removing a particulate from a liquid silicon containing compound. The method comprises contacting a suspension comprising a non-conducting liquid silicon containing compound and a particulate having a different dielectric constant than the no... | 10/03/2000 |
| 5954933 | Method for electrostatic filtration An electrostatic fluid filtration system of the present invention is designed to remove contaminants from liquids thereby refreshing their functionality and extending their useful life. This system reduces to commercial practice a myriad of partially atta... | 09/21/1999 |
| 5785834 | Electrostatic filter An electrostatic filter utilizes two separate filter cartridges in a parallel flow configuration with respect to incoming dielectric fluid containing particulates. Each cartridge is connected to opposite sides of a high voltage power supply, resulting in ... | 07/28/1998 |
| 5647965 | Apparatus and method for separating a charged substance from a conductive fluid Apparatus and method for removing a charged substance from a conductive fluid by imposing an electrostatic field on the conductive fluid, the charged substance being drawn to and retained by a charged substance receiving member having a core of a conducti... | 07/15/1997 |
| 5611904 | Electrochromatography apparatus The invention provides fittings for the ends of electrochromatography cols. Each fitting includes an annular electrode surrounding one end of the passage electrical fields to be applied. The fitting also contains a passageway for eluant flowing into or o... | 03/18/1997 |
| 5376279 | Filtration using ionically and electrically conductive depth filter A method of depth filtration of particles from a fluid carrying particles including providing in a deep filter a quantity of filter medium elements, at least some of the elements being ionically conductive, applying an electric field to the deep filter to... | 12/27/1994 |
| 5362371 | Apparatus and method for removing liquid from liquid bearing material An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a crossflow filter apparatus for continuously removing liquid from a liquid bearing material comprising a housings, a filter disposed within th... | 11/08/1994 |
| 5344533 | Apparatus and method for removing liquid from liquid bearing material An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a pair of electrode units having portions thereof disposed adjacent each other and defining an inlet to the adjacent portions and an outlet fro... | 09/06/1994 |
| 5259940 | Apparatus and method for removing liquid from liquid bearing material An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a pair of electrode units having portions thereof disposed adjacent each other and defining an inlet to the adjacent portions and an outlet fro... | 11/09/1993 |
| 5160593 | Apparatus and method for removing liquid from liquid bearing material An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a pair of electrode units having portions thereof disposed adjacent each other and defining an inlet to the adjacent portions and an outlet fro... | 11/03/1992 |
| 5114553 | Apparatus and method for removing liquid from liquid bearing material An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a pair of electrodes having portions thereof disposed adjacent each other and defining an inlet to the adjacent portions and an outlet from the... | 05/19/1992 |
| 5021136 | Apparatus and method for removing liquid from liquid bearing material An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a pair of movable electrodes having portions thereof disposed adjacent each other and defining an inlet to the adjacent portions and an outlet ... | 06/04/1991 |
| 5019230 | Apparatus and method for removing liquid from liquid bearing material An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a pair of electrodes having portions thereof disposed adjacent each other and defining an inlet to the adjacent portions and an outlet from the... | 05/28/1991 |
| 4975166 | Apparatus and method for removing liquid from liquid bearing material An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a pair of electrodes having portions thereof disposed adjacent each other and defining an inlet to the adjacent portions and an outlet from the... | 12/04/1990 |
| 4948515 | Filter for liquid and method of filtering liquid A method for filtering liquids having a dielectric constant less than 10 is disclosed. The method includes the step of filtering a liquid through a porous layer of an electret, the electret consisting of a fibrous sheet having a surface charge density of ... | 08/14/1990 |
| 4877503 | Apparatus and method for removing liquid from liquid bearing material An apparatus and method for removing liquid from liquid bearing material are provided, the apparatus comprising a pair of spaced apart electrodes for being disposed on opposite sides of the material, a unit for creating an electrostatic field between the ... | 10/31/1989 |
| 4780188 | Apparatus and method for removing liquid from liquid bearing material An apparatus and method for removing liquid from liquid bearing material is provided, the apparatus comprising a pair of spaced apart electroes for being disposed on opposite sides of the material, a unit for creating an electrostatic field between the el... | 10/25/1988 |
| 4744910 | Electrostatic filter An improved electrostatic fluid filter is disclosed which is particularly useful in high performance clean rooms for the semiconductor industry. The electrostatic fluid filter is tubular in design and has an inlet port for supplying fluid (e.g., liquid, a... | 05/17/1988 |
| 4624763 | Separation of dispersed phase from phase mixture In order to separate dispersed contaminant phase from a phase mixture comprising the contaminant phase dispersed in a continuous background fluid phase (for example a water-in-oil emulsion), net unipolar charge is injected into the emulsion with an electr... | 11/25/1986 |
| 4624764 | Separation of dispersed phase from continuous fluid phase Separation of dispersed phase (e.g., solid, gel, liquid or gas contiminant) from a continuous fluid background phase (liquid or gas) is achieved by injecting free charge into the phase mixture, which both induces an electric field within the mixture and e... | 11/25/1986 |
| 4372837 | Radial flow electrofilter A radial flow electrofilter having a plurality of parallel planar horizontal electrodes. The filter may be provided with backflush means, in which case the filter medium preferably consists of non-deformable particles, or else a removable filter pack, pre... | 02/08/1983 |
| 4302310 | Radial flow electrofilter A radial flow electrofilter having a plurality of parallel planar horizontal electrodes. The filter may be provided with backflush means, in which case the filter medium preferably consists of non-deformable particles, or else a removable filter pack, pre... | 11/24/1981 |
| 4269681 | Radial flow electrofilter A radial flow electrofilter having a vertical cylindrical fluid distributor means adapted to serve as a grounded electrode, a vertical central tubular collector also adapted to serve as an electrode and at least one, preferably a plural odd number, of per... | 05/26/1981 |
| 4236317 | Method and apparatus for electrostatically forming a layer of material from a slurry thereof In a method and apparatus for forming a layer of material against one side of a movable conveyor from a slurry of a liquid and material by an electrostatic action, the improvement wherein a plurality of needle-like projections are disposed in the slurry t... | 12/02/1980 |
| 4221648 | Media regeneration in electrofiltration The media employed in the electrofiltration of organic fluids can be regenerated by washing with inorganic acids such as phosphoric, nitric, etc., acids. It is particularly effective in systems employing metal catalysts, for example nickel, etc., in hydro... | 09/09/1980 |
| 4200509 | Method for dewaxing refined vegetable oils for refrigerator clarity stability A method of dewaxing an electrical high-resistivity refined vegetable oil, containing no more than 0.1% moisture, to provide a dewaxed clear liquid vegetable oil having excellent refrigerator clarity. The method comprises slowly tempering the oil at 25° ... | 04/29/1980 |
| 4194956 | Method for dewaxing high-resistivity oils A method for removing waxes from high-resistivity oils free of significant amounts of dispersed water by crystallizing said waxes and then passing the oil through interstitial spaces defined within a mass of substantially spherical ceramic beads of high e... | 03/25/1980 |
| 4189845 | Method and apparatus for electrostatically forming a layer of material from a slurry thereof A method and apparatus for forming a layer of material against a movable conveyor from a slurry of a liquid and material by an electrostatic action so that the layer of material can be subsequently removed in layer form from the conveyor and including a p... | 02/26/1980 |
| 4111774 | Electrofiltration of animal fats This invention relates to the electrofiltration of rendered animal fat. By means of this process, foreign bodies present in said fat are facilely removed without the conventional steps of water washing, centrifugation and drying. The use of electrofiltrat... | 09/05/1978 |
| 4049520 | Color improvement process for organic liquid A process for the color improvement of a non-petroleum organic liquid (fats, animal and vegetable oils) containing color impurities (e.g. chlorophyll). The organic liquid is subjected in succession to a refining step using an aqueous reagent, a hydrogenat... | 09/20/1977 |
| 4040926 | Electrofiltration process for purifying organic liquids Non-petroleum organic liquids (fats, animal and vegetable oils, etc.) containing solids (e.g., hydrogenation catalysts) are purified within a unique electrofiltration system wherein the organic liquids are passed through a selected bed material in which i... | 08/09/1977 |
| 4017390 | Method for separating solid pollutants from fluids Treatment of fluid polluted with solid particles, for instance, from a dust removal or washing process, by pretreating the fluid to agglomerate the particles, then whirling the fluid to centrifugally concentrate the particles in a first fraction of the fl... | 04/12/1977 |
| 3980541 | Electrode structures for electric treatment of fluids and filters using same Composite electrode structures are disclosed employing mutually opposed electrodes spaced apart to define a fluid treatment region through which a fluid is passed for treatment by an electric field established between the electrodes. Resistive electrodes ... | 09/14/1976 |
