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| Number | Title | Issue Date |
| 8167981 | Vacuum filter assembly A filter assembly for mechanically removing silicon monoxide during a crystal growth run having a filter housing, a filter mounting plate attached to the filter housing, a sweep plate attached to the filter housing, a plurality of filter elements attached to the fil... | 05/01/2012 |
| 7833320 | Method and apparatus for a self-cleaning filter A method and apparatus for removing fine particulate matter from a fluid stream without interrupting the overall process or flow. The flowing fluid inflates and expands the flexible filter, and particulate is deposited on the filter media while clean fluid is permit... | 11/16/2010 |
| 7410529 | Filter service system and method According to an exemplary embodiment of the present disclosure, a system for removing matter from a filtering device of a work machine includes a gas pressurization assembly. An element of the gas pressurization assembly is removably attachable to a first orifice of... | 08/12/2008 |
| 7351269 | Self cleaning filter and vacuum incorporating same A brush configured to move repeatedly over a vacuum filter. The brush will remove dust particles to prevent them from clogging the filter. In the preferred embodiment, the brush is mounted on a revolving shaft. As the shaft turns it moves the bristles of the brush o... | 04/01/2008 |
| 7282155 | Device and a method for filtering a fluid A device for filtering a fluid includes a fiber housing having an inlet end with at least one inlet and an outlet end with at least one outlet. The fiber housing surrounds and defines an outer bound for a plurality of fibers extending longitudinally in the fiber hou... | 10/16/2007 |
| 7276108 | Filter device and cleaning method therefor A filter device. The filter device comprises a first shaft, a second shaft separated from the first shaft by a predetermined distance, a filter looped around the first shaft and the second shaft and moved as the first and the second shafts rotate, and a brush contac... | 10/02/2007 |
| 7272941 | Methods for fluid separations, and devices capable of separating fluids Wick-Containing apparatus capable of separating fluids and methods of separating fluids using wicks are disclosed. ... | 09/25/2007 |
| 7152276 | Filter assembly for a cyclone-type dust collecting apparatus of vacuum cleaner A filter assembly for a cyclone-type dust collecting apparatus of a vacuum cleaner which filters dust included in the air current discharged from the outlet port of the cyclone-type dust collecting apparatus. The present filter assembly comprises a rotating filter r... | 12/26/2006 |
| 7051540 | Methods for fluid separations, and devices capable of separating fluids Wick-Containing apparatus capable of separating fluids and methods of separating fluids using wicks are disclosed. ... | 05/30/2006 |
| 6969420 | Method of collecting nanoparticles by using a cyclone and method of designing the cyclone A cyclone is used to collect nanoparticles and is formed of a chamber, and a guide wing located in the chamber such that the guide wing and the chamber form a passage. A flow entraining the nanoparticles is moved through the passage in such a way that the flow is ca... | 11/29/2005 |
| 6966935 | Filter cleaner for wet/dry vacuum A filter cleaner for wet/dry vacuum is provided for effectively cleaning filter cartridges employed for use in a class of vacuum cleaners commonly referred to as “wet/dry vacs.” The filter cleaner apparatus includes a cylindrical catch tank supported by a base. ... | 11/22/2005 |
| 6926750 | Filter element A filter element comprises an oil-impregnated filtering member, and a transmission preventing layer formed on a downstream side of the filtering member, for restricting transmission of at least the carbon dusts from the oil-impregnated filtering member. The filterin... | 08/09/2005 |
| 6695894 | Method and apparatus for removing vapor phase contaminants from a flue gas stream The present invention provides a method and apparatus for removing trace contaminants from a gas stream or flue gas. In one embodiment, the present invention an apparatus for removing a trace contaminant from a gas stream, comprising a gas duct configured... | 02/24/2004 |
| 6627166 | Gas filtering device The invention concerns a device for filtering gas comprising a microporous or microfibrous adsorbent filter (6) and means for forcing an air flow between an exhaust hood (2) and outlet duct (3) for the filtered air. The invention is characterized in that ... | 09/30/2003 |
| 6616734 | Dynamic filtration method and apparatus for separating nano powders A method and apparatus for separating nanometer-sized particles of a powder. The method includes (a) feeding the powder particles into a pressurized gas stream which carries the particles into a first stage filter device of a multiple-stage separator syst... | 09/09/2003 |
| 6605131 | Integrated active noise control with self-cleaning filter apparatus An air induction system with active noise control includes a self-cleaning air filter that is integrated within an air intake housing. The self-cleaning air filter filters out contaminants such as dust and dirt particulates from air flowing through the in... | 08/12/2003 |
| 6602328 | Gas turbine suction air filter, a gas turbine using the same and a method for using the same A gas turbine suction air filter is provided wherein, despite a large capacity, dust is easily removed by an ultrasonic washer. A gas turbine suction air filter (1) has a box-like frame member (3) and a filter cloth (5) contained in the frame member (3). ... | 08/05/2003 |
| 6517612 | Centrifugal filtration device This invention is directed to a continuously cleanable, high performance filtration apparatus and a method for using the apparatus. The apparatus is a radial inflow centrifugal filtration device, which includes a filter element located within a chamber an... | 02/11/2003 |
| 6238464 | Method and apparatus for separating droplets for particles from a gas stream A device for separating particles contained in a gas stream and the associated process use a spongy type separator to process gas streams containing liquid or solid particles of a size substantially smaller than one micrometer. The separator is advantageo... | 05/29/2001 |
| 6176901 | Dust precipitator In a dust precipitation device for filtration of dust created during crystal growth from a melt, cold surfaces are provided as contact surfaces as a part of the gas control geometry, to which the dust can adhere and thus become separated from the transpor... | 01/23/2001 |
| 6113674 | Adsorption apparatus and methods An adsorption bed arrangement includes a plurality of adsorption elements, a housing, and a gasket member. Each of the adsorption elements has adsorption media contained within a respective element. Each of the adsorption elements are selectively openable... | 09/05/2000 |
| 6090183 | Method and apparatus for processing exhaust gas produced during manufacturing of semi-conductor devices A method for processing an exhaust gas produced during manufacturing of semiconductor devices including the steps of introducing a thermally disintegrable or thermally oxidizable exhaust gas produced during manufacturing of semiconductor devices into a pr... | 07/18/2000 |
| 6036750 | Separator with rotating filter A secondary separator stage for separating material conveyed in a fluid stream. A material collecting receptacle includes an inlet conduit and an exhaust vent. The stream of fluid with materials flow via the inlet conduit into the receptacle. An exhauster... | 03/14/2000 |
| 5900043 | Electrostatic filter with process for fast cleaning without breaking confinement Electrostatic filter in which the enclosure (2) is fitted with a flexible membrane (12) , behind which an acoustic wave generator (14) is placed and which vibrates the gaseous contents of the filter to detach retained dust and clean the filter.... | 05/04/1999 |
| 5738706 | Smoke filtration unit and method of using same The smoke filtration unit described herein has an internal cylindrical duct for ducting exhaust smoke from an exhaust flue to a shutter pivotally mounted within the cylindrical duct. The shutter can move between at least two positions. The shutter, when l... | 04/14/1998 |
| 5681363 | Vacuum cleaner filter shaker A filter shaking arrangement includes a resilient frame disposed around an expandable filter, both of which are expanded by a fan induced air flow. The resilient frame returns resiliently to its original form upon the cessation of this air flow. This cont... | 10/28/1997 |
| 5603740 | Suction activated reciprocating system A suction source is connected to the upper end of a vertical suction tube; a plug member slides upwardly within the tube under the action of the suction source and moves down by gravity when the suction source is cut off The suction tube has a bypass port... | 02/18/1997 |
| 5562758 | Method of removing fine particle dust and apparatus therefor A method and apparatus for separating and collecting fine dust particles from a gas including the fine particle dust from a source which generates the fine particle dust by introducing the gas to a filter. The method further sets forth the step of flowing... | 10/08/1996 |
| 5549734 | Baghouse cleaning method A bag cleaning apparatus removes caked dust from the bags of a baghouse and prevents the removed dust from being recaptured. The outlets of each bag subject to cleaning and all adjacent bags are closed during the cleaning process and for a sufficient time... | 08/27/1996 |
| 5500195 | Method for reducing gaseous emission of halogen compounds in a fluidized bed reactor A method for reducing gaseous emission of halogen compounds in a fluidized bed reactor in which the fine particles entrained in flue gases are used to form a temporary layer of particles on the baghouse filter to absorb halogen gases.... | 03/19/1996 |
| 5352275 | Method of producing hot mix asphalt An apparatus and process is provided for the production of hot mix asphalt (HMA) by the treatment of virgin material alone or adding reclaimed or recycled asphalt pavement (RAP) of up to 100% of the HMA comprised of reclaimed asphaltic pavement (RAP). The... | 10/04/1994 |
| 5342433 | Dust collector with bimodal shaker The vertically suspended filter bags of a dust collector are periodically shaken in a bi-modal manner, to removed adhered dust. Repetitious motions applied to the closed bag bottoms are comprised of a long lifting stroke, to partially fold the bags, follo... | 08/30/1994 |
| 5338339 | Apparatus and method for removing resinated wood particles from an air stream An apparatus and process are provided for removing particles from an air stream by filtration, particularly wood particles which have been treated with a resinous material, and which therefore are somewhat sticky. The apparatus is a filter system in which... | 08/16/1994 |
| 5223005 | Dust and fume collector A fume and dust collector system is comprised of a semi-rigid tubular filter compressively held against a sub-base by a beam. To dislodge accumulated particulate, a combination of gravity hammer rapping of the beam compressively loads the filter wall and ... | 06/29/1993 |
| 5096473 | Filtration fabric laminates A filter composite is made of a porous polytetrafluoroethylene (PTFE) and a fabric. The PTFE and fabric are bonded by an adhesive. The adhesive is prevented from penetrating the fabric by employing a coating of an oil and water-repellent material to the s... | 03/17/1992 |
| 5090975 | High efficiency vacuum cleaner bags A novel vacuum cleaner bag is disclosed comprising a closed receptacle having an inlet orifice, the bag being formed from a sheet containing at least 65% flashspun polyolefin fibers. The vacuum cleaner bag is suitable for conventional vacuum cleaners and ... | 02/25/1992 |
| 5034030 | Process of flue gas conditioning applied to fabric filtration A method of improving control of atmospheric emission of particulate matter from the emission stack of coal combustion facilities which employ baghouse particle controllers is disclosed. The method involves injecting upstream of the baghouse a small but c... | 07/23/1991 |
| 5024681 | Compact hybrid particulate collector A method for removing particulates from a gas is described incorporating an electrostatic precipitator and a barrier filter in series, i.e. baghouse, downstream of the electrostatic precipitator. The series arrangement enables the barrier filter to operat... | 06/18/1991 |
| 5022897 | Method for hazardous waste removal and neutralization A method of coating a filter medium in a flowing gaseous stream, the method comprising: directing a gas stream along a feed path; combining with said gas stream a multiplicity of finished glass dust particles; positioning a fibrous filter medium along sai... | 06/11/1991 |
| 5013333 | Unattended air cleaning system for surface maintenance machine A powered surface maintenance machine having an exhaust air system for dust control is equipped with air filters for removing dust from the air before exhausting it to atmosphere. Automatic means are provided to mechanically shake dust from the filters wh... | 05/07/1991 |
