Collecting Electrode Details (e.g., Sheet Type, Running Length Web, Etc.) Patents (Class 96/98)
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Patent number: 11185871Abstract: The present invention relates to an electrostatic precipitator (ESP) system (1) for removal of particles from a flue gas flowing in a flow passage (4) being delimited by a primary collection in the form of a collection plate (5). The system comprises a discharge electrode (11) arranged in the flow passage and connected to a high voltage generator (12) providing for an electric field around the discharge electrode. The system further has a secondary collection electrode in the form of a grid (101) arranged within the collection plate and made of an electrically conductive material. The presence of such a grid improves the efficiency of the precipitator. In some embodiments, the ESP system comprises an actuator (112) for moving the grid upwards and letting it drop onto an internal bottom structure (109). The movement between the collection plate and the grid as well as the impact force imparted to the dropping grid both result in a removal of collected particles.Type: GrantFiled: December 3, 2018Date of Patent: November 30, 2021Assignee: exodraft A/SInventors: Peter Hermansen, Seyednezamaddin Azizaddini, Per Holm Hansen
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Patent number: 10744516Abstract: An electrostatic precipitation module includes a plurality of conductive precipitation electrode plates and a plurality of non-precipitation electrode plates. The plurality of precipitation electrode plates are interlacedly distributed along the length of a first connecting rib; the precipitation electrode plates are made from conductive plastic material by injection molding, and a metal conductor is embedded inside the first connecting rib by in-mold injection molding, so that a precipitation electrode plate module is formed; a non-precipitation electrode plate module is formed with a similar structure. After the precipitation electrode plate module and the non-precipitation electrode plate module are assembled, the precipitation electrode plates and the non-precipitation electrode plates form an electrostatic precipitation module.Type: GrantFiled: December 18, 2015Date of Patent: August 18, 2020Assignee: Ningbo Zhekai Electric Co., Ltd.Inventors: Hairong Hu, Zhangbin Xiao
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Publication number: 20150122123Abstract: An electrode is arranged on one wall surface of a flow path of an exhaust atmosphere in a solvent separating apparatus, an electric field is applied to vaporized solvent in the exhaust atmosphere so as to concentrate only the solvent in the exhaust atmosphere in the direction toward the electric field, and the solvent is discharged to the outside of the solvent separating apparatus together with a portion of the exhaust atmosphere in the periphery of the solvent.Type: ApplicationFiled: October 31, 2014Publication date: May 7, 2015Inventors: Terutsugu SEGAWA, Koichi NAGAI, Naofumi HINO
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Patent number: 9005347Abstract: An air purifier includes a frame, a fan unit, and an electrostatic precipitator. The precipitator has a first strip with a first continuous conductive electrode layer directly adjacent to an edge, and a second strip with a second continuous conductive electrode layer directly adjacent to an edge. The first and second strips are nested with one another. The edge of the first strip is opposed to the edge of the second strip. An electrostatic precipitator for an air purifier includes a first spiral strip having a continuous conductive electrode, a second spiral strip having a continuous conductive electrode and nested with the first strip, a plurality of combs. Each comb extends from an outer periphery of the precipitator to an intermediate region between the outer periphery and a center of the precipitator.Type: GrantFiled: September 6, 2012Date of Patent: April 14, 2015Assignee: FKA Distributing Co., LLCInventor: Mordechai Lev
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Publication number: 20150013541Abstract: An improved collector electrode for an electrostatic precipitation air filter including a voltage source, an ion emitter, insulated drive electrodes, and attraction electrodes. The insulated drive electrodes include a multi-part structure having an electrically conductive material located between non-electrically conductive portions. The insulated drive electrodes allow an increased voltage potential between the attraction electrodes and the drive electrodes.Type: ApplicationFiled: July 7, 2014Publication date: January 15, 2015Applicant: LASKO HOLDINGS, INC.Inventors: Rudy Vandenbelt, Philippe Genereux
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Patent number: 8747527Abstract: A method for converting soot particles of an exhaust gas includes providing at least nitrogen dioxide or oxygen in the exhaust gas, ionizing soot particles with an electric field, depositing electrically charged soot particles on inner channel walls of at least one surface precipitator, and bringing at least nitrogen dioxide or oxygen into contact with the deposited soot particles on the inner channel walls of the at least one surface precipitator. A device for carrying out the method includes at least one surface precipitator having a plurality of channels through which the exhaust gas can flow and extending between an inlet region and an outlet region, and at least one deposit inhibitor for electrically charged soot particles provided in at least part of the inlet region, especially allowing the soot particles to be evenly deposited and the surface precipitator to be continuously regenerated.Type: GrantFiled: March 14, 2012Date of Patent: June 10, 2014Assignee: Emitec Gesellschaft fuer Emissionstechnologie mbHInventors: Wolfgang Maus, Peter Hirth, Rolf Brueck
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Patent number: 8721775Abstract: The electronic air filter has a pair of pads between which a grid is sandwiched. The pads are composed of glass fiber or like filtering medium while the grid is composed of two or more pads of carbon interconnected by a network of filaments having a cotton core surrounded by a graphite sheath. The grid is connected to a source of electrical power at a voltage at which a corona field develops around the grid with resulting polarization of the grid.Type: GrantFiled: May 17, 2011Date of Patent: May 13, 2014Inventor: Jeff Chesebrough
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Patent number: 8690996Abstract: An electric precipitator to collect contaminants, such as dust, using electrical attraction. The electric precipitator includes high-voltage electrode plates and low-voltage electrode plates alternately stacked to form an electrification region and a collection region in an air flow direction, wherein each of the high-voltage electrode plates includes a discharge electrode to generate discharge between the discharge electrode and an opposite electrode so that contaminants are electrified in the electrification region and a collection electrode disposed over the electrification region and the collection region to collect the electrified contaminants in the collection region.Type: GrantFiled: January 28, 2011Date of Patent: April 8, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jun Ho Jl, In Sang Hwang, Hyong Soo Noh, Byeong Cheol Yoon, Kochiyama Yasuhiko, Du Seop Yoon, So Young Yun, Jun Young Lee
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Patent number: 8673068Abstract: This device for inactivating and finely filtering viruses and microorganisms in a flow of air is intended for cleaning air or gas. The device includes a high voltage power supply (4) and the following components arranged in series in the direction of flow: a unit (1) for pre-treating a flow of air, a two-section inactivation chamber (2) and a precipitator (3). The pre-treating unit (1) consists of oppositely charged conductive filtering elements (7, 7?). The first conductive filtering element (7) in the direction of flow is in the form of a cylindrical electrode (6) and a plate (9) which is made of a current conductive, highly porous material and is positioned at a distance from the free end face of the cylindrical electrode (6). A needle electrode (8), electrically associated with the plate (9), is adjacent to said plate.Type: GrantFiled: September 18, 2008Date of Patent: March 18, 2014Inventor: Alexei Mikhailovich Volodin
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Patent number: 8663374Abstract: An apparatus for concentrating aerosol particles can include: a sample air inlet; an enriched aerosol outlet; an aerosol lean outlet; a flow path connecting the air inlet and aerosol rich and aerosol lean outlets; and a plurality of alternately energized and grounded electrode pairs along the flow path. The aerosol rich outlet can be in fluid communication with an aerosol particle capture device. The apparatus can include a sheath air inlet providing a flow of aerosol free air over surfaces of the alternately energized and grounded electrode pairs. The apparatus can include an elongate focusing chamber having a cylindrical shape containing the alternately energized and grounded electrode pairs that are configured as circular rings. The apparatus can include one or more structures configured to impart tangential, spiral or helical flow to a stream entering through the sample air inlet.Type: GrantFiled: August 3, 2012Date of Patent: March 4, 2014Assignee: CFD Research CorporationInventors: Kapil Pant, Shivshankar Sundaram, Yi Wang
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Patent number: 8657937Abstract: Each protrusion (42) of a first electrode (40) is formed to have a long plate-like shape extending across a plurality of grid holes (46) of the first electrode (40). Each grid hole (56) of a second electrode (50) is formed to have an elongate shape extending to conform to each corresponding one of the protrusions (42) of the first electrode (40). Protrusions (52) of the second electrode (50) are arranged in the longitudinal direction at end portions (54a) on the long sides of the respective grid holes (56) of the second electrode (50), so as to conform to the grid holes (46) of the first electrode (40).Type: GrantFiled: August 27, 2009Date of Patent: February 25, 2014Assignee: Daikin Industries, Ltd.Inventors: Kanji Motegi, Ryuuji Akiyama, Shunji Haruna, Toshio Tanaka
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Patent number: 8623125Abstract: An electrode for plasma generation according to the present invention includes a plurality of collecting portions having a plurality of through holes, the plurality of collecting portions facing a gas flow in a direction where gas to be treated flows and provided spaced apart from each other. The electrode is applied to a plasma reactor of a treatment device to be provided for a device which discharges the smoke including PM, for example, an exhaust gas purifying device for automobile, or a smoke treatment device used in a facility where the smoke is discharged such as a plant.Type: GrantFiled: July 28, 2008Date of Patent: January 7, 2014Assignee: Daihatsu Motor Co., Ltd.Inventors: Yoonho Kim, Kazuya Naito, Takashi Ogawa, Isao Tan, Hirohisa Tanaka, Hirotoshi Fujikawa, Kazuhiko Madokoro
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Patent number: 8617298Abstract: An electrostatic precipitator is provided with a ionizing unit and a collecting unit placed on the downstream side of the ionizing unit, and the ionizing unit has discharge electrodes each of which generates a corona discharge and a ground electrode plate connected to the earth, and in this structure, the ground electrode plate is provided with an insulating substrate, a resistor formed on the surface of the insulating substrate and a conductive section that is electrically connected to the resistor on the surface of the insulating substrate, and the discharge electrodes face the resistor of the ground electrode plate at a predetermined interval.Type: GrantFiled: August 19, 2009Date of Patent: December 31, 2013Assignee: Panasonic CorporationInventors: Kengo Nakahara, Ryou Katou
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Patent number: 8608838Abstract: The invention provides an air purification system in form of tubing, by which particulates of various sizes in the air flow can be collected. The system includes an air inlet, an air outlet and a particulate removing unit located therebetween, the particulate removing unit including a tubing array of material having low dielectric constant, when an air flow passes through the system electrostatic effect is created between the air flow and the tubing material so as to remove the particulates entrained within the air flow. The invention also provides a method for removing particulates from air flow using the electrostatic effect created between the air flow and said material.Type: GrantFiled: January 14, 2011Date of Patent: December 17, 2013Assignee: Yau Lee Innovative Technology, Ltd.Inventors: Tin Cheung Wong, Yee Tak Leung
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Patent number: 8597416Abstract: The present invention relates to the use of corrosion, temperature and spark resistant electrically conductive components in wet electrostatic precipitator systems (WESPs). In particular, the present invention is directed to using a conductive composite material in the fabrication of wet electrostatic precipitator system components.Type: GrantFiled: June 18, 2008Date of Patent: December 3, 2013Assignee: Turbosonic Inc.Inventor: Robert A. Allan
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Patent number: 8591634Abstract: An apparatus and process for recovering a desired gas such as xenon difluoride, xenon, argon, helium or neon, from the effluent of a chemical process reactor that utilizes such gases alone or in a gas mixture or in a molecule that becomes decomposed wherein the chemical process reactor uses a sequence of different gas composition not all of which contain the desired gas and the desired gas is captured and recovered substantially only during the time the desired gas is in the effluent.Type: GrantFiled: January 19, 2011Date of Patent: November 26, 2013Assignee: Air Products and Chemicals, Inc.Inventors: David Charles Winchester, Matthew John Bosco, Gerald W. Klein, Isaac Patrick West, Richard Linton Samsal, Douglas Paul Dee, Andrew David Johnson, Eugene Joseph Karwacki, Jr.
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Patent number: 8580017Abstract: An electrostatic precipitator including a charger to charge dust particles in air and a collector to collect the dust particles. The collector includes a collector case including high-voltage electrodes, to which high-voltage is applied, low-voltage electrodes alternately stacked with the high-voltage electrodes so as to be grounded, and first electrode support elements to support the high-voltage and low-voltage electrodes with a distance therebetween. The first electrode support elements include electrode contact terminals to support extreme edge portions of the high-voltage and low-voltage electrodes. The high-voltage and low-voltage electrodes are formed of a conductive material, or a non-conductive material, the surface of which is subjected to conductive treatment. The electrode contact terminals for the high-voltage electrodes are formed of a semiconductive material.Type: GrantFiled: June 4, 2012Date of Patent: November 12, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Hyong Soo Noh, Kochiyama Yasuhiko, So Young Yun
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Patent number: 8574345Abstract: This invention provides a method for the removal of smut, fine dust and exhaust gas particles from polluted air including providing a particle catch arrangement with a charged surface, the particle catch arrangement being arranged to generate a static electric field, wherein the electric field is at least 0.2 kV/m. The invention further provides a particle catch arrangement including a surface that can be charged, further including a generator arranged to generate charge to the surface that can be charged and to generate a static electric field of at least 0.2 kV/m, wherein the particle catch arrangement is part of or integrated with an object including street furniture.Type: GrantFiled: August 1, 2012Date of Patent: November 5, 2013Assignee: Technische Universiteit DelftInventors: Willibrordus Nicolaas Johannes Ursem, Johannes Cornelis Maria Marijnissen, Rein Andre Roos
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Patent number: 8574353Abstract: An object of the present invention is to provide an electric dust collector with its dust collecting performance being improved for collecting dust-like particles contained in a gas, whereas the increase in size thereof is being suppressed. An electric dust collector distributes a gas that has flown into a distribution chamber to a plurality of charging flow paths in a casing thereof, causes the distributed gas to flow from the insides of the charging flow paths into internal flow paths through mesh filters that are formed as parts of the dust collecting electrodes and that have a large surface areas per unit volume. Then, the gas is discharged to a central chamber through internal outlets. Subsequently, the flow of the gas is controlled to be discharged to the outside through a gas outlet.Type: GrantFiled: November 11, 2009Date of Patent: November 5, 2013Assignee: Furukawa Industrial Machinery Systems Co., Ltd.Inventors: Taksuki Nazuka, Kazuhiro Suginami
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Patent number: 8545599Abstract: A thermal management apparatus includes an electrohydrodynamic fluid accelerator in which an emitter electrode and another electrode are energizable to motivate fluid flow. One of the electrodes includes a solid solution formed of a solvent metal having a first performance characteristic and a solute material having a second performance characteristic. The first and second performance characteristics are exhibited substantially independently in the electrode as the solvent metal and solute material remain substantially pure within the solid solution. A method of making an EHD product includes providing an electrode with such a solid solution and positioning the electrode relative to another electrode to motivate fluid flow when energized.Type: GrantFiled: October 28, 2010Date of Patent: October 1, 2013Assignee: Tessera, Inc.Inventor: Giles Humpston
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Patent number: 8512455Abstract: Disclosed herein is an electric precipitator including at least one high voltage electrode including a pair of film members made of a non-conductive material and attached to each other and an electrode layer disposed between the pair of film members, and at least one low voltage electrode disposed alternately with the at least one high voltage electrode such that that the at least one high voltage electrode and the at least one low voltage electrode are separated from each other. Support members made of an insulating member to maintain separation of the at least one high voltage electrode and the at least one low voltage electrode from each other are mounted on one of the at least one high voltage electrode and the at least one low voltage electrode.Type: GrantFiled: April 22, 2010Date of Patent: August 20, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Kochiyama Yasuhiko, Hyong-Soo Noh, Jun Ho Ji, So Young Yun
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Publication number: 20130167724Abstract: The present invention provides a device and system for desorption and dehumidification, comprising a conductive electrode, a moisture absorber, and a power source. The conductive electrode comprises a first surface and a second surface opposite to the first surface, and the first surface has a plurality of protrusion elements. The moisture absorber comprises a third surface formed on the plurality of protrusions. The power source provides power to the conductive electrode such that a uniform and stable micro-discharge phenomenon is generated thereby forming a continuous charge flow. The continuous charge flow can further generate an electrical interruption for depolarizing the attraction between the moisture molecules and moisture absorber whereby the moisture molecules can be desorbed from the moisture absorber more easily.Type: ApplicationFiled: December 19, 2012Publication date: July 4, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventor: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
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Patent number: 8470084Abstract: An electrode precipitator having a high voltage electrode and a low voltage electrode arranged apart from each other at a desired interval. The high voltage electrode includes a charging part which is positioned upstream of an air flow direction to charge a pollutant, and a dust collection part which is spaced from the charging part and positioned downstream of the air flow direction to precipitate the charged pollutant therein.Type: GrantFiled: November 30, 2009Date of Patent: June 25, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jun Ho Ji, Kochiyama Yasuhiko, Hyong Soo Noh, So Young Yun, Han Wook Cho
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Patent number: 8465575Abstract: Disclosed is a dust collector (30) that is disposed in an air passageway (15) to which water droplets (21a) are supplied, and that includes a dust collecting electrode portion (31b) which electrically attracts dust charged in the air. The dust collecting electrode portion (31b) is made of a plate-like member having a mesh-like structure with a plurality of pores, thereby reducing an interfacial tension between the water droplets (21a) adhering on the surface of the dust collecting electrode portion (31b) and the dust collecting electrode portion (31b). Thus, water droplets are prevented from increasing in size on the surface of a dust collecting electrode, and a decrease in the dust collection capability due to adhesion of dust or the like is reduced.Type: GrantFiled: February 20, 2009Date of Patent: June 18, 2013Assignee: Daikin Industries, Ltd.Inventors: Toshio Tanaka, Tsunahiro Ohdou, Kanji Motegi
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Patent number: 8425657Abstract: A method, and an apparatus to reduce and remove liquid droplets in air, such as fog, mist, haze, spray or steam. The mist and/or air borne water or other liquid droplets catching and collection apparatus creates an “electric wind”, especially enforced by charged needle points or line arranged constructions and/or wires of the first electrode and an electric charging of mist and/or air borne water or other liquid droplets, which will be directed by the “electric wind” and the electric field between the electric source and the opposite grounded or opposite charged counter electrode (second electrode) of fine gauze or something comparable.Type: GrantFiled: December 17, 2008Date of Patent: April 23, 2013Assignee: Technische Universiteit DelftInventors: Willibrordus Nicolaas Johannes Ursem, Johannes Cornelis Maria Marijnissen, Rein André Roos
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Patent number: 8337600Abstract: An electrostatic precipitator for removing solid and liquid components from an aerosol includes a precipitator housing having a raw gas inlet for an aerosol to be cleaned, a clean gas outlet for cleaned aerosol, and at least one aerosol supply channel flange-mounted to the raw gas inlet, a drain device for solid and liquid components that are separated from the aerosol, an ionization stage externally powered via a high-voltage bushing and including at least one metallic high-voltage rod that extends into a flow path of the aerosol and to which high voltage is applyable, and a collector stage disposed in the flow path downstream of the ionization stage.Type: GrantFiled: January 14, 2009Date of Patent: December 25, 2012Assignee: Karlsruher Institut Fuer TechnologieInventors: Hanns-Rudolf Paur, Andrei Bologa, Klaus Woletz
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Publication number: 20120312169Abstract: The present invention is an air purification method and device. Due to the lower airflow resistance that the present invention induces, an exhaust fan or blower with motor of lower torque is adopted. Consequently, the whole air purification is operated at a lower noise level. Lower operational voltage is applicable for the high-voltage electrostatic precipitator device and provides a similar or superior performance and effectiveness for dust removal. The air purification device/system is designed with higher flexibility and of more compact in dimension and size. Dust is removed from the environment by a high voltage electrostatic precipitator. The airflow stream within a high-voltage electrostatic precipitator is such that the direction of the path of the airflow is changed at least twice.Type: ApplicationFiled: June 6, 2012Publication date: December 13, 2012Inventors: Yiu Wai CHAN, Sui Chun Law, Yiu Ming Chan
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Patent number: 8323385Abstract: A conducting filter adapted for removing airborne particles from the atmosphere and a filter assembly including such a filter. The conducting filter is made from a polymer which has received significantly increased electrical conductivity by a doping process, the doped polymer referred to as a synthetic metal, the synthetic metal having electrical properties such that the filter according to the invention, including such polymer, may be supplied with electrical charge and whereby maintain its efficiency with regards to the electrostatic properties during operation. In the filter assembly according to the invention, the conducting filter may be supplied with electrical charge by connecting it to a voltage source.Type: GrantFiled: August 27, 2009Date of Patent: December 4, 2012Inventor: Mikael Nutsos
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Publication number: 20120255444Abstract: The present invention provides an activated carbon which is used in an activated carbon electrode plate and a method of preparing an activated carbon electrode plate prepared using the same, in which the activated carbon electrode plate functions to remove gas and gaseous air pollutants at the same time. The method comprises the steps of: providing a raw pure activated carbon or an impurity-containing raw activated carbon; processing the raw activated carbon into a powdered activated carbon; treating the pores of the powdered activated carbon to maintain the pores; filtering the powdered activated carbon whose pores were treated, and mixing the filtered activated carbon with a binder to form a binder/activated carbon mixture; forming the binder/activated carbon mixture into a flowable activated carbon slurry; applying the activated carbon slurry to the surface of a conductive material; and drying the conductive material having the activated carbon slurry applied thereto.Type: ApplicationFiled: April 6, 2012Publication date: October 11, 2012Inventors: Kwang Soo KIM, Jung O. Park
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Patent number: 8268058Abstract: A high-performance labyrinth type air treatment apparatus includes a positively (negatively) charged dust collector mounted in an air passage inside a shell, the positively (negatively) charged dust collector having positively (negatively) charged dust collecting panels arranged in such a manner that a labyrinth-like detoured air path is defined through the positively (negatively) charged dust collector, an air ionization control means having discharge/emitting terminals arranged in the labyrinth-like detoured air path, and an electric fan for causing flowing of air through the positively (negatively) charged dust collector so that negatively (positively) charged heteroparticles carried in currents of air flowing through the labyrinth-like detoured air path are forced, to strike repeatedly against the positively (negatively) charged dust collecting panels and then effectively adhered to the positively (negatively) charged dust collecting panels, achieving extremely high air purification.Type: GrantFiled: November 16, 2009Date of Patent: September 18, 2012Inventors: Fu-Chi Wu, Steven Wu
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Publication number: 20120216674Abstract: A method for converting soot particles of an exhaust gas includes providing at least nitrogen dioxide or oxygen in the exhaust gas, ionizing soot particles with an electric field, depositing electrically charged soot particles on inner channel walls of at least one surface precipitator, and bringing at least nitrogen dioxide or oxygen into contact with the deposited soot particles on the inner channel walls of the at least one surface precipitator. A device for carrying out the method includes at least one surface precipitator having a plurality of channels through which the exhaust gas can flow and extending between an inlet region and an outlet region, and at least one deposit inhibitor for electrically charged soot particles provided in at least part of the inlet region, especially allowing the soot particles to be evenly deposited and the surface precipitator to be continuously regenerated.Type: ApplicationFiled: March 14, 2012Publication date: August 30, 2012Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBHInventor: WOLFGANG MAUS
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Patent number: 8246720Abstract: An electrostatic aerosol concentrator includes an airflow chamber with alternately energized and grounded electrode elements that work in concert to impart radial inward motion to charged aerosol particles and focusing them toward an enriched aerosol outlet. Aerosol particles entering the airflow chamber may carry a positive or negative charge naturally, or a charge may be induced on the particles using a charging section located upstream of the aerosol inlet. Natural or induced charges on the aerosol particles may be used to selectively concentrate subpopulations of aerosol particles from a mixture of particles. For example, bacterial spores or aerosolized viruses may be selectively enriched without concentrating other aerosol particles.Type: GrantFiled: July 31, 2007Date of Patent: August 21, 2012Assignee: CFD Research CorporationInventors: Kapil Pant, Shivshankar Sundaram, Yi Wang
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Patent number: 8241396Abstract: This inventions provides a method for the removal of smut, fine dust and exhaust gas particles from polluted air including providing a particle catch arrangement with a charged surface, the particle catch arrangement being arranged to generate a static electric field, wherein the electric field is at least 0.2 kV/m. The invention further provides a particle catch arrangement including a surface that can be charged, further including a generator arranged to generate charge to the surface that can be charged and to generate a static electric field of at least 0.2 kV/m, wherein the particle catch arrangement is part of or integrated with an object including street furniture.Type: GrantFiled: March 2, 2007Date of Patent: August 14, 2012Assignee: Technische Universiteit DelftInventors: Willibrordus Nicolaas Johannes Ursem, Johannes Cornelis Maria Marijnissen, Rein Andre Roos
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Patent number: 8236094Abstract: The present invention provides an exhaust gas purifying device including an electrically insulated hollow cylindrical case, a cylindrical outer circumferential electrode arranged on an inner wall of the hollow cylindrical case, a bar-shaped center electrode held on a center axis of the outer circumferential electrode, and a metallic hollow cylindrical body arranged between the outer circumferential electrode and the center electrode, wherein the metallic hollow cylindrical body is electrically insulated and has a plurality of holes to permit particulate matter to pass therethrough without being accumulated.Type: GrantFiled: March 27, 2008Date of Patent: August 7, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masaru Kakinohana, Hirohito Hirata, Akira Mizuno
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Patent number: 8211217Abstract: A wet electrostatic precipitator (ESP) is disclosed to have a housing, several discharge wires, two roughened collection electrodes coated with TiO2 or SiO2 nanoparticles, two porous metallic plates, and two roughened glass plates coated with TiO2 or SiO2 nanoparticles. The porous metallic plates and the glass plates coated with TiO2 or SiO2 nanoparticles located above the collection electrodes are used to enhance the uniformity of the water film. When particles are introduced into the ESP, they are charged by gas ions generated by corona discharge, and then migrate to collection electrodes due to electrostatic force. Finally, particles are removed by uniform water film flowing downward along the collection electrodes. Furthermore, pulse jet passing through the small holes on the collection plates is used to clean discharge wires, maintaining electric corona strength and prolonging the operation life.Type: GrantFiled: December 17, 2009Date of Patent: July 3, 2012Assignee: National Chiao Tung UniversityInventors: Chuen-Jinn Tsai, Guan-Yu Lin
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Patent number: 8206494Abstract: The invention concerns a device for air/water extraction by semi-humid electrostatic collection, comprising a chamber (7) containing a discharge electrode (1) for generating an ion flow from an ionized gas accumulation surrounding the discharge electrode (1) and a counter-electrode (2), an inlet (3) for mixing air and aerosol to be extracted which contains liquid or solid particles, a steam supply tube (8) and an outlet (4) for the cleansed air. The invention is characterized in that the device enables steam to be introduce the steam supply tube (8) in the gap between the discharge electrode (1) and the counter-electrode (2) so as to form a steam sheath (10) enclosing the discharge electrode over its entire length, such that the treated air is not steam-saturated.Type: GrantFiled: July 24, 2006Date of Patent: June 26, 2012Assignees: CNRS, Commissariat a l'Energie AtomiqueInventors: Ernest Galbrun, Jean Luc Achard, Yves Fouillet, Raymond Charles
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Patent number: 8202355Abstract: The present invention provides a method and apparatus for removing chemical sterilant molecules from a medium, such as a carrier gas. In one embodiment, the apparatus includes a housing that defines an internal cavity. The housing has an inlet and an outlet fluidly communicating with the internal cavity. An electrode is dimensioned to be received in the internal cavity of the housing. The electrode is made of a material that is chemically active with respect to molecules of a chemical sterilant and conductive to electricity. The electrode is connected to a source of an electrical charge such that an electrical field gradient is formed in a region of space surrounding the electrode. The electrical field gradient is operable to force the chemical sterilant molecule toward the electrode.Type: GrantFiled: November 16, 2011Date of Patent: June 19, 2012Assignee: STERIS CorporationInventors: Michael A. Centanni, Thaddeus J. Mielnik
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Patent number: 8192536Abstract: A dust collector includes a charging part (12) for charging dust with electricity and a dust collecting part (30). Each of a dust collecting electrode (40) and a high-voltage electrode (50) that constitute the dust collecting part (30) includes: a base (41, 51) with a rectangular grid structure having a large number of vent holes (46, 56) formed therein; and projections (42, 52) extending into the vent holes (56, 46) of the opposed electrode (50, 40). The dust collector collects dust by generating an electric field between the dust collecting electrode (40) and the high-voltage electrode (50).Type: GrantFiled: June 15, 2007Date of Patent: June 5, 2012Assignee: Daikin Industries, Ltd.Inventors: Toshio Tanaka, Kanji Motegi, Ryuji Akiyama, Tsunahiro Odo, Shunji Haruna
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Patent number: 8192535Abstract: A dust collector includes a charging part (12) for charging dust with electricity and a dust collecting part (30). Each of a dust collecting electrode (40) and a high-voltage electrode (50) that constitute the dust collecting part (30) includes: a base (41, 51) with a rectangular grid structure having a large number of vent holes (46, 56) formed therein; and projections (42, 52) extending into the vent holes (56, 46) of the opposed electrode (50, 40). The dust collector collects dust by generating an electric field between the dust collecting electrode (40) and the high-voltage electrode (50).Type: GrantFiled: June 15, 2007Date of Patent: June 5, 2012Assignee: Daikin Industries, Ltd.Inventors: Toshio Tanaka, Kanji Motegi, Ryuji Akiyama, Tsunahiro Odo, Shunji Haruna
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Patent number: 8163235Abstract: The present invention provides a method and apparatus for removing chemical sterilant molecules from a medium, such as a carrier gas. In one embodiment, the apparatus includes a housing that defines an internal cavity. The housing has an inlet and an outlet fluidly communicating with the internal cavity. An electrode is dimensioned to be received in the internal cavity of the housing. The electrode is made of a material that is chemically active with respect to molecules of a chemical sterilant and conductive to electricity. The electrode is connected to a source of an electrical charge such that an electrical field gradient is formed in a region of space surrounding the electrode. The electrical field gradient is operable to force the chemical sterilant molecule toward the electrode.Type: GrantFiled: November 16, 2011Date of Patent: April 24, 2012Assignee: STERIS CorporationInventors: Michael A. Centanni, Thaddeus J. Mielnik
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Publication number: 20120085230Abstract: An electrostatic coalescer includes an outer wall defining a flow path for receiving a process fluid comprising primarily a gas, a power source, and a plurality of electrode plates coupled to the power source to generate an electrical field across the flow path.Type: ApplicationFiled: November 5, 2009Publication date: April 12, 2012Applicant: FMC Technologies, Inc.Inventors: Mohamed Reda Akdim, Govert L. Kruijtzer, Pavel Antsiferov
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Publication number: 20110232492Abstract: An electrode for plasma generation according to the present invention includes a plurality of collecting portions having a plurality of through holes, the plurality of collecting portions facing a gas flow in a direction where gas to be treated flows and provided spaced apart from each other. The electrode is applied to a plasma reactor of a treatment device to be provided for a device which discharges the smoke including PM, for example, an exhaust gas purifying device for automobile, or a smoke treatment device used in a facility where the smoke is discharged such as a plant.Type: ApplicationFiled: July 28, 2008Publication date: September 29, 2011Applicant: DAIHATSU MOTOR CO., LTD.Inventors: Yoonho Kim, Kazuya Naito, Takashi Ogawa, Isao Tan, Hirohisa Tanaka, Hirotoshi Fujikawa, Kazuhiko Madokoro
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Publication number: 20110185904Abstract: A reel-to-reel aerosol collection and storage system for capturing and storing a plurality of separate samples of aerosol particles using electrostatic precipitation technology for collecting such particles onto a tape mechanism for analysis at a future time. The particles are collected onto a region of the collection tape for a defined period of time and then that portion of the collection tape is advanced out of the collection zone and manipulated so as to form sealed pouches or pockets which can be either severed from the collection tape for individual storage in a temperature controlled storage container, or which can be stored on a take-up reel in a temperature controlled environment. The collected aerosol particles are stored with a buffer fluid to preserve and maintain the viability of the collected particles for future extraction and analysis. Several embodiments for forming sealed pouches or pockets and methods of storing the collected particles are disclosed.Type: ApplicationFiled: February 2, 2011Publication date: August 4, 2011Applicant: MIDWEST RESEARCH INSTITUTE, INC.Inventors: Joseph M. Langle, Michael F. Fischer, James M. Egan, Alexander J. Waller, Joseph W. Clement, Darren J. Radke
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Publication number: 20110056372Abstract: An electrostatic screen battery for emission control (ESBEC) system includes a plurality of screens. The screens are arranged in an alternating manner so that screens at a first electric potential are interposed with screens at a second electric potential. An ionizer is disposed upstream of the screens. An exhaust stream passes by the ionizer and then through the screens, where particulates are deposited onto the screens. In preferred embodiments the screens have hydrophobic surfaces.Type: ApplicationFiled: September 7, 2010Publication date: March 10, 2011Applicant: Rutgers, the State University of New JerseyInventors: Gediminas Mainelis, Taewon Han, Satyanarayanan Seshadri
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Patent number: 7901490Abstract: A system and method of reducing the introduction of foreign material to wafers. A system includes an enclosure structured and arranged to carry wafers used in semiconductor device manufacturing, and an attractive material arranged as at least a portion of an interior surface of the enclosure.Type: GrantFiled: January 10, 2008Date of Patent: March 8, 2011Assignee: International Business Machines CorporationInventors: David J. Clark, Alison K. Easton, James E. Fluegel, James H. Peterman
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Patent number: 7846241Abstract: A particulate matter detecting apparatus (100) includes a detecting apparatus main body having a cavity (2) that is formed through the detecting apparatus main body, a particle charging section (3) that can charge particulate matter that has entered the cavity through an inflow-side end (6) of the cavity, a collection section (4) that can collect the particulate matter charged by the particle charging section (3) and measure the amount of the particulate matter, and an ion wind generation section (5) that allows the particulate matter charged by the particle charging section (3) to flow toward an outflow-side end (7) of the cavity, the particle charging section, the collection section (4), and the ion wind generation section (5) being provided inside the cavity in this order from the inflow-side end (6). The particulate matter detecting apparatus has a reduced size, shows only a small measurement error, and can be produced inexpensively.Type: GrantFiled: August 18, 2009Date of Patent: December 7, 2010Assignee: NGK Insulators, Ltd.Inventors: Atsuo Kondou, Takeshi Sakuma, Yasumasa Fujioka
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Patent number: 7824476Abstract: A tunnel fan with an electrostatic filter is disclosed. The tunnel fan includes: a cylindrical shaped tunnel fan; and an electrostatic filter including a pipe assembly, the pipe assembly including a plurality of pipes arranged in parallel to form a cylindrical shape, each pipe having an electrostatic induction means for causing tiny dust to be collected by an induction voltage, wherein the electrostatic filter is coupled to a front or a rear of the tunnel fan.Type: GrantFiled: February 28, 2008Date of Patent: November 2, 2010Inventor: Jong Seung Chung
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Publication number: 20100269699Abstract: An electrostatic precipitator for removing a particulate material includes a housing having an internally formed air path communicating between an inlet for drawing polluted air containing particulate material and an air outlet for emitting clean air purified by removing the particulate material, an air stream generating means that generates an air stream, a discharging means that charges the particulate material, and a collection device provided in the air stream to collect the particulate material which has been charged by the discharging means. The collection device includes a collection belt including a flat wire belt defining a three-dimensional collection surface. The precipitator further includes a brush and vacuum assembly for removing the particulate material and reducing the risk of reentrainment in the air stream.Type: ApplicationFiled: April 28, 2010Publication date: October 28, 2010Applicant: CAMBRIDGE INTERNATIONAL, INC.Inventor: Chetwyn JONES
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Patent number: 7819945Abstract: A method for making a metal fluoride trap including: assembling a precipitation tube assembly including a plurality of precipitation tubes supported between a first tube end support and a second tube end support; assembling a precipitation tube, flowsheet and filter media assembly including: wrapping a flowsheet around at least one full circumference of the plurality of precipitation tubes, wherein the flowsheet has a width less than a length of the plurality of precipitation tubes between the first tube end support and the second tube end support; and wrapping a filter media around the wrapped flowsheet, wherein the filter media and the flowsheet are wrapped so as to have a diameter less than an inner diameter of an outer casing of the metal fluoride trap; inserting the precipitation tube, flowsheet and filter media assembly into the outer casing of the metal fluoride trap; allowing the flowsheet to expand; and pressing the filter media between the flowsheet and an inner surface of the outer casing of the meType: GrantFiled: October 30, 2008Date of Patent: October 26, 2010Assignee: Cymer, Inc.Inventors: Richard Morton, Yoshiho Amada
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Publication number: 20100236405Abstract: A substrate transfer device includes an atmosphere introduction unit and an atmosphere exhaust unit provided at a top and a bottom portion of a main body of the device, respectively; and a substrate transfer mechanism provided between the atmosphere introduction unit and the atmosphere exhaust unit. The substrate transfer device further includes a downward flow forming unit provided, adjacent to the atmosphere introduction unit, to allow an atmosphere to be introduced through the atmosphere introduction unit and to downwardly flow through the substrate transfer mechanism and be exhausted through the atmosphere exhaust unit; and a gas ionizing unit for ionizing the atmosphere and a particle collecting unit for collecting particles included in the atmosphere, the gas ionizing unit and the particle collecting unit being sequentially provided in the direction in which the atmosphere downwardly flows, between the downward flow forming unit and the substrate transfer mechanism.Type: ApplicationFiled: March 18, 2010Publication date: September 23, 2010Applicant: TOKYO ELECTRON LIMITEDInventors: Jun Yamawaku, Junji Oikawa, Hiroyuki Nakayama