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| Number | Title | Issue Date |
| 7396377 | Compact filter comprising a square seal A filter element comprising a spirally wound filter through which a fluid to be filtered flows axially and which is provided with a mounting ring on the circumference of the wound filter secured to the wound filter by a welded, adhesive, extruded or fused joint. The... | 07/08/2008 |
| 7329326 | Method of making a fluted filter media for air filter Fluted filter media includes filter material having a plurality of flutes formed therein having alternating ends of adjacent flutes closed to force fluid through filter material. A first embodiment of the filter media includes tapered flutes which have the open ends... | 02/12/2008 |
| 7291196 | Filamentary pad for improved mist elimination and mass transfer An apparatus and method of making a filamentary pad for improved mist elimination and mass transfer comprising a plurality of layers of mesh, each layer of mesh having a plurality of mesh openings defined therein. A plurality of preferential gas flow openings, each ... | 11/06/2007 |
| 7287684 | Filter cartridge assembly and method of manufacture An apparatus for filtering well fluids and method of manufacture is disclosed. The apparatus comprises an inner support, a filter spirally wrapped around the inner support, and an outer support wrapped around the filter enclosing the filter between the inner and out... | 10/30/2007 |
| 7279022 | Spiraltrap: devices and methods for the trapping particulate matter in exhaust and of other pollutants Embodiments of the present invention include methods and devices for trapping particulate matter suspended in exhaust from, for example, automotive diesel engines. Particulates carried in exhaust are actually a colloidal suspension of finely divided particulates in ... | 10/09/2007 |
| 7278406 | Spiral-wound hydrocarbon adsorber for an air intake of an internal combustion engine A low-resistance hydrocarbon adsorber comprising a spiral-wound laminated structure for mounting into an entrance port of an engine air intake system to prevent hydrocarbon evaporations from reaching atmosphere. Preferably, the adsorber is formed as a cartridge and ... | 10/09/2007 |
| 7258719 | Filter and forming system A filter includes first and second sheets of filter media, the second sheet being pleated and forming with the first sheet a plurality of axially extending flow channels having lateral cross-sectional shapes with two adjacent included angles each greater than 45° a... | 08/21/2007 |
| 7250704 | High temperature electrical coil Certain exemplary embodiments can provide an electrical coil for an electromagnetic machine, said coil comprising: a first electrically conductive winding wound about a central axis in a first spiral, said first winding defining a first winding width and a first win... | 07/31/2007 |
| 7235124 | High temperature nanofilter, system and method A filter, system and method is provided for filtering nanoparticles in a hot gas, namely particles about 200° C. and further particularly >about 450° C. including diesel exhaust. The filter includes filter media material composed of fibro... | 06/26/2007 |
| 7163625 | Filtration device The present invention provides a filtration device. The invention employs filter media wrapped into spirals about an apertured core. Fluid may flow radially inward or radially outward during filtration. Embodiments using multiple filter media and embodiments achievi... | 01/16/2007 |
| 7160361 | Evaporative emission treatment device Disclosed herein an evaporative emission treatment device comprising: a housing; and an adsorption member disposed in the housing, the adsorption member comprising an adsorption component comprising an activated carbon textile made from a novoloid precursor. ... | 01/09/2007 |
| 7108738 | Filter element and mounting method The present invention relates to an apparatus for filtering a gas or liquid stream such as a natural gas stream. The apparatus includes a closed vessel having a longitudinally extending length, an initially open interior, an input port at one extent and an output po... | 09/19/2006 |
| 7077885 | Gas/liquid phase separator and the fuel cell-based power production unit equipped with one such separator A gas and liquid phase separator apparatus and an apparatus for energy production based on fuel cells within the phase separator. ... | 07/18/2006 |
| 7052532 | High temperature nanofilter, system and method A filter, system and method is provided for filtering nanoparticles in a hot gas, namely particles about 200° C. and further particularly >about 450° C. including diesel exhaust. The filter includes filter media material composed of fibro... | 05/30/2006 |
| 7025797 | Folded mesh filter for particulates A wire mesh filter is made from a knitted wire sock, folded along its length, and then wound into a spiral, and is useful for diesel traps and other particulate filters that are regenerable by heating the filter. ... | 04/11/2006 |
| 7014685 | Filter element and mounting method The present invention relates to an apparatus for filtering a gas or liquid stream such as a natural gas stream. The apparatus includes a closed vessel having a longitudinally extending length, an initially open interior, an input port at one extent and an output po... | 03/21/2006 |
| 6989097 | Feed spacers for filtration membrane modules The invention disclosed relates to feed spacers used in various filtration membrane modules, such as in spiral wound membranes, used in cross-flow filtration. Such spacers have an influence in promoting the mixing between the bulk of the fluid and the fluid element ... | 01/24/2006 |
| 6986428 | Fluid separation membrane module The present invention includes a membrane construction for selectively transferring a constituent to or from a fluid. The membrane construction includes a multi-layer fluid impermeable support sheet having a plurality of supports on at least one side of the support ... | 01/17/2006 |
| 6966940 | Air filter cartridge A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally includes z-filter media, arranged in a straight through configuration, an... | 11/22/2005 |
| 6913059 | Ceramic fiber-based filter web and method A filter medium formed from a web of ceramic fibers, pleated and integrated into a coherent unit employing a ceramic sol. A method is disclosed. ... | 07/05/2005 |
| 6887343 | Filter coating, winding, finishing and manufacturing system A coating system (66, 68), winding system (158), finishing system (274, 276) and manufacturing system (FIGS. 6, 7, 22-29) is provided for spiral-wound fluted filter media (74, 130). ... | 05/03/2005 |
| 6883321 | Filter assembly for exhaust gases An in-line filter assembly for filtering engine exhaust gases utilized by turbocharged internal combustion engine systems. The filter assembly includes an external housing having a lower housing section and an upper housing section. The upper housing section further... | 04/26/2005 |
| 6787216 | Method for manufacturing multiple channel membranes, multiple channel membranes and the use thereof in separation methods A method for manufacturing multiple channel membranes includes extruding a polymer solution through an extrusion nozzle wherein several needles are arranged through which a gas or liquid containing a coagulating agent is injected during extrusion, wherein the outer ... | 09/07/2004 |
| 6776815 | Particulate filter A particulate filter can be prevented from being damaged. The ashes can be removed from the particulate filter without by burning. A non-woven welding operation for a sealing portion can be simplified. The operability is enhanced by facilitating an insertion of a mu... | 08/17/2004 |
| 6758874 | Rotating filter feature for wet/dry vacuum cleaner A wet/dry vacuum cleaner includes a debris collection drum having a top opening and a power head covering the top opening of the collection drum, which has an inlet and an outlet. A rotating filter filters dust laden air and is suspended from the power head extendin... | 07/06/2004 |
| 6582490 | Pre-form for exhaust aftertreatment control filter A green uncured pre-form (10) for an exhaust aftertreatment filter includes first and second sheets (12 and 14) of regenerable filter material, the second sheet being pleated and forming with the first sheet a plurality of axially extending flow channels ... | 06/24/2003 |
| 6540816 | Regenerable filter with localized and efficient heating An exhaust aftertreatment filter is provided with localized and efficient heating for regeneration. Electrical and/or thermal conductors are wound with filter media sheets into a filter roll and/or conductors are provided at axial ends of the filter roll ... | 04/01/2003 |
| 6521006 | Vacuum cleaner A vacuum cleaner capable of efficiently separating and eliminating dust and dirt is provided. The vacuum cleaner including a body having open and closed spaces divided by a partition, a suction brush connecting port formed on the upper side of the body an... | 02/18/2003 |
| 6398852 | Device for air cleaning The present invention is directed to a device (1;1';1"; 1'"; 1""; 1'"") for air cleaning, especially from electrically charged particles, the device (1;1';1"; 1'"; 1""; 1'"") including an air flow channel (2;2';2"; 2'"; 2""; 2'""), an air transporting mec... | 06/04/2002 |
| 6391200 | Filter and method of filtering a fluid A spiral wound filter element is disclosed which includes alternating layers of filter medium and diffusion medium wrapped about a cylindrical core defining a central axis of the filter element. The alternating layers extend from a radially innermost laye... | 05/21/2002 |
| 6361589 | Device for air cleaning A device is provided for cleaning air from charged particles in an air flow duct. The device includes at least one precipitator panel including one or more precipitator units that are arranged so that their inlets have a large extension relative to the cr... | 03/26/2002 |
| 6203600 | Device for air cleaning A precipitator having a through-flowing passage for the air to be purified. The precipitator is intended to be included in an air purification device, especially for purifying air from electrically charged particles. The precipitator is electrically conne... | 03/20/2001 |
| 6159261 | Filter cartridge A filter cartridge, in particular for an intake air filter of an internal combustion engine, the cartridge including a hollow cylindrical filtering body (10) which is provided on at least one end face with an end disk. The end disk carries a sealing eleme... | 12/12/2000 |
| 6068771 | Method for sealing spiral wound filtration modules A method for preparing a spiral wound filtration module is provided. The module has a central permeate carrier tube. The method includes winding at least one filtration leaf about the permeate carrier tube. The filtration leaf includes a first membrane sh... | 05/30/2000 |
| 6039870 | Radial wound fiber disk A radially wound tubular fiber disk comprises a single strand of tubular fiber having a feed inlet at one end and a feed outlet at the other. Radially arranged adhesive strips forming seams maintain a desired spacing between adjacent convolutions of the t... | 03/21/2000 |
| 5997991 | Deodorizing material The present invention proposes light-weight and easy-to-handled deodorizing material that has a large contact area with bad smell-causing gas as well as better deodorizing performance and also that enjoys a smooth circulation of that gas with a lower perm... | 12/07/1999 |
| 5972081 | Negligible pressure drop absorber Negligible pressure drop absorber has a hollow housing having an entrance opening and an exit opening, and an absorber unit including a plurality of layers of an absorbent material arranged substantially parallel with one another to form a passageway for ... | 10/26/1999 |
| 5954847 | Radial air filter A radial air filter is pleated in the horizontal direction rather than the vertical direction so as to have increased capacity and efficiency with reduced air flow restriction. Preferably, the pleats have a parabolic cross section wherein the panels of th... | 09/21/1999 |
| 5935300 | Separation Apparatus A separation process comprises passing a gas or vapor stream contaminated with an undesired substance or contaminant downwardly through a plurality of spiral separating media such that the direction of movement of the gas or vapor stream is transversely t... | 08/10/1999 |
| 5916531 | Spiral fixed-bed module for adsorber and catalytic reactor A spiral fixed-bed module used to provide contact and interaction between a fluid stream and solid particles, comprises a fluid distribution element formed by a pair of laterally coextensive envelope-like fluid communication channels being spirally wound ... | 06/29/1999 |
