Parallel Disk Or Plate Collector Unit Patents (Class 96/86)
  • Patent number: 11541400
    Abstract: An electrostatic precipitating apparatus for a cooling tower is provided. The precipitating apparatus include an electrostatic precipitator including a plurality of discharge electrodes to which a voltage is applied and a plurality of electrostatic precipitating electrodes each disposed between the discharge electrodes and grounded, a washing water supply spraying the washing water to the electrostatic precipitator, and a frame assembly supporting the electrostatic precipitator. The electrostatic precipitator includes a first setting beam having a plurality of lower slots into which the discharge electrodes are fixedly inserted, and the frame assembly includes a lower frame extending in a stacking direction of the discharge electrodes to support the first setting beam, via which a voltage is applied to the discharge electrode.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: January 3, 2023
    Assignee: DOOSAN ENERBILITY CO., LTD.
    Inventors: Jin Woon Lee, Sang Rin Lee, Jae Dong Hwang, Sang Chul Moon
  • Patent number: 11517917
    Abstract: The invention relates to a rack (21, 27, 28) for supporting electrostatic filter plates (22, 23) of an electrostatic filter (20). The rack (21, 27, 28) is an elongated member comprising a plurality of notches (11) on a longitudinal side of the rack (21, 27, 28) for supporting a plate (22, 23) arranged to a notch (11). The rack (21, 27, 28) further comprises a slot (26) for adhesive arranged to be used at least for attaching the plates (22, 23) to the rack (21, 27, 28). The slot (26) is arranged on the opposite side of the rack (21, 27, 28) than notches (11). There is also an opening (24) in the first group of plates (22) at that point where the plates (22) are aligned with the voltage supply rack (28) but which are not attached to that rack (28). The invention further relates to an electrostatic filter (20) comprising a plurality of racks.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: December 6, 2022
    Assignee: Alme Solutions Oy
    Inventor: Jari Heinovaara
  • Patent number: 11198136
    Abstract: An electrostatic precipitator module and a desulfurization system are capable of easily discharging wash water from a wet electrostatic precipitator module. The electrostatic precipitator module includes an arrangement of discharge electrodes and collecting electrodes alternately disposed and spaced apart from each other, the discharge electrodes configured to be charged to a predetermined voltage for generating a corona discharge between the discharge electrodes and the collecting electrodes; and tie rods for fixing the discharge electrodes and the collecting electrodes. Each collecting electrode has a lower edge inclined downward with respect to the ground. The lower edge of each collecting electrode includes separate lower edge portions respectively inclined downward from opposite side ends of the collecting electrode and a lowermost point at which wash water is concentrated and discharged to a discharge guide installed directly under the lowermost points.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: December 14, 2021
    Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION C
    Inventors: Sangchul Moon, Jinwoon Lee, Sangrin Lee, Joonhyuk Yim, Jaedong Hwang
  • Patent number: 9308538
    Abstract: An electrostatic precipitation air cleaner to reduce ozone output is provided. The electrostatic precipitation air cleaner includes a housing with an air inlet and outlet. Located in the housing are an air mover for moving a stream of air along an airflow path between the inlet and the outlet, an ion emitter electrode positioned in the airflow path downstream of the inlet for ionizing particulates entrained in the stream of air, a collector electrode having an inlet downstream of the ion emitter electrode, and an intermediate element intermediate the ion emitter electrode and the collector electrode. The collector electrode is comprised of a plurality of collector plates spaced apart in a direction transverse to the airflow path. The plates are electrically biased to create and maintain an electric field in the space therebetween to precipitate ionized particulates entrained in the stream of air onto a confronting surfaces of the plates.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: April 12, 2016
    Assignee: Lasko Holdings, Inc.
    Inventors: Philippe J Genereux, Rudy A Vandenbelt
  • Patent number: 8814995
    Abstract: An electrostatic precipitator having a collecting electrode plate assembly, including at least two electrode plates disposed substantially in a parallel to each other in the vertical plane within the electrostatic precipitator, forming a space between the collecting electrode plates, and a discharge electrode assembly interposed in said spaces, wherein the electrode assembly passing at least a supporting structure of the collecting electrode plate assembly. The supporting structure is provided with an electrical screening device at least in the area of the supporting structure facing said electrode assembly.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: August 26, 2014
    Assignee: ALSTOM Technology Ltd
    Inventors: Per Bengt Daniel Johansson, Andreas Olof Back
  • Publication number: 20140174294
    Abstract: An electrostatic air conditioner having at least one ion emitting member (i.e., corona frame) and at least one ion collecting member (i.e., collecting cartridge) is provided. The corona frame and collecting cartridge are configured to have active and passive areas and be removable from the housing within which they are positioned. The passive areas provide additional spacing between the active area and the side walls of the housing, and provide several advantages over existing electrostatic air conditioners, e.g., eliminates barriers between active corona wires and the housing walls, which prevents any settling of chemically active or electrically active matter (vapor or particles) on such barriers and/or housing walls (due to air flow).
    Type: Application
    Filed: July 22, 2013
    Publication date: June 26, 2014
    Inventor: Igor Krichtafovitch
  • Patent number: 8690998
    Abstract: An electric precipitator includes a charge unit disposed at an upstream part and a dust collection unit disposed at a downstream part, the charge unit includes charge electrodes and a discharge wire disposed between two neighboring charge electrodes and separated from the charge electrodes, the dust collection unit includes high voltage electrodes, front ends of which are opposite to the charge unit, and low voltage electrodes, front ends of which are opposite to the charge unit and which alternate with high voltage electrodes, and the front ends of high voltage electrodes protrude toward the charge unit as compared to the front ends of low voltage electrodes, thereby guiding electrons to the discharge electrodes due to an electric field formed between the front ends of the high voltage electrodes and the discharge electrodes and thus reducing current leakage through the low voltage electrodes.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: April 8, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun Ho Ji, In Sang Hwang, Byeong Cheol Yoon, Jun Young Lee
  • Patent number: 8690997
    Abstract: A two-sided attraction structure including an electrostatic chuck portion (2) and a power supply portion (5), the electrostatic chuck portion (2) including a dielectric member (3) in a plate-like shape, which is made of an insulating material and has a front side and a back side, and an internal electrode (4) mounted into the dielectric member, the front side and the back side of the dielectric member each serving as an attraction surface when voltage is applied to the internal electrode (4), the power supply portion (5) applying the voltage to the internal electrode, of the electrostatic chuck portion (2), in which the power supply portion (5) includes a solar cell (6) and a voltage boost circuit (7) for boosting power generated by the solar cell (6).
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: April 8, 2014
    Assignee: Creative Technology Corporation
    Inventors: Yoshiaki Tatsumi, Hiroshi Fujisawa, Megumu Kawae
  • Patent number: 8657937
    Abstract: 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: Grant
    Filed: August 27, 2009
    Date of Patent: February 25, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Kanji Motegi, Ryuuji Akiyama, Shunji Haruna, Toshio Tanaka
  • Patent number: 8551228
    Abstract: Devices for removing particles for a gas utilizing electrostatic precipitation having collector modules with fewer electrical connections, which facilitate cleaning, and/or eliminate the need for high voltage connections between a removable collector module and a collector module support. Driver electrode modules provide electrical connection between an insulated driver electrode and a source of electrical potential or between insulated driver electrodes and at least one other conductor through a hole in or on some edge on the driver electrodes. A biasing force is provided and a conductive element serves as a conductor between the driver electrode(s) and the other conductors. A plurality of insulated driver electrodes, e.g. plates, are formed with a single, conductive plate or from a plurality of electrically joined conductive plates which are coated with insulation and then bent.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: October 8, 2013
    Inventor: Sik Leung Chan
  • Publication number: 20130220128
    Abstract: A single-region-board type high temperature electrostatic dust collector comprising anode boards (1), a cathode board (2), emitting electrodes (3) and a high voltage power supply is provided. Two parallel corrosion resistant plates are grounded to form the anode boards (1). One corrosion resistant plate with the same shape and size as the anode boards (1) connects to the cathode of the high voltage power supply, so as to form the cathode board (2), which are suspended between the two anode boards (1) and parallel with the anode boards (1). The disk-shaped emitting electrodes (3) are uniformly embedded at two sides of the cathode board (2).
    Type: Application
    Filed: October 29, 2010
    Publication date: August 29, 2013
    Inventors: Zhongzhu Gu, Jinjin Xu, Liying Dong, Juanjuan Liu
  • Patent number: 8512455
    Abstract: 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: Grant
    Filed: April 22, 2010
    Date of Patent: August 20, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kochiyama Yasuhiko, Hyong-Soo Noh, Jun Ho Ji, So Young Yun
  • Publication number: 20130047858
    Abstract: An electrostatic precipitator cell containing a collection assembly, a plurality of collection assembly ground plates disposed in the collection assembly, a plurality of banks disposed in the collection assembly, wherein each bank containing a collection assembly charge plate and a voltage isolator is described. Electrically isolating portions of an electrostatic precipitator cell results in reduced arcing and overall increases in cleaning efficiency. As air cleaner utilizing the electrostatic precipitator with isolated banks is also described.
    Type: Application
    Filed: August 31, 2011
    Publication date: February 28, 2013
    Inventors: John R. Bohlen, Fa Jian Zhu, Yong Wei Wu, Run Gang Xia, Xiao Fei Chen
  • Patent number: 8357233
    Abstract: Devices for removing particles for a gas utilizing electrostatic precipitation having collector modules with fewer electrical connections, which facilitate cleaning, and/or eliminate the need for high voltage connections between a removable collector module and a collector module support. Driver electrode modules provide electrical connection between an insulated driver electrode and a source of electrical potential or between insulated driver electrodes and at least one other conductor through a hole in or on some edge on the driver electrodes. A biasing force is provided and a conductive element serves as a conductor between the driver electrode(s) and the other conductors. A plurality of insulated driver electrodes, e.g. plates, are formed with a single, conductive plate or from a plurality of electrically joined conductive plates which are coated with insulation and then bent.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: January 22, 2013
    Inventor: Sik Leung Chan
  • Publication number: 20120312170
    Abstract: 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: Application
    Filed: June 4, 2012
    Publication date: December 13, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyong Soo NOH, Kochiyama Yasuhiko, So Young Yun
  • Publication number: 20120103191
    Abstract: Air purification systems comprising a plurality of disks, and methods for their use, are provided. Each of the plurality of disks comprises a metal substrate, an undercoat layer disposed on the metal substrate, a photosensitive layer disposed on the undercoat layer, and a charge transfer layer disposed on the photosensitive layer.
    Type: Application
    Filed: November 1, 2010
    Publication date: May 3, 2012
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Takashi Iwamoto
  • Patent number: 7866145
    Abstract: Particulate emission reducing devices reduce particulate emissions from a vehicle. A housing is attached to a vehicle's exhaust pipe downstream of its muffler by an intake funnel having a desiccant bed and check valve. An ionizer is connected to the intake funnel. A collection unit is removably inserted into the housing through a collection unit opening with support bar notches in the housing's top downstream of the ionizer. Contacts in the bottom of the housing negatively charge collector plates, which collect positively charged particulates from the exhaust stream. Exhaust gases are emitted by an exhaust funnel attached to the housing downstream of the collection unit. A handle attached to the access panel of the collection unit facilitates removal of the collector plates for cleaning. The vehicle may include an indicator light to remind the user to clean the collector plates. The vehicle's trunk may include an access opening.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: January 11, 2011
    Inventor: Douglas E. Lercher
  • Patent number: 7833323
    Abstract: There is provided a flotage trapping device using electrostatic field. The flotage trapping device has a body including a power source portion and a boosting portion fed from the power source portion, and a collector portion including a collector to which the plus and/or minus high voltage obtained from the boosting portion is applied. The collector portion is formed as a collector cassette by unitizing the collector portion in the form of a cassette. A fixing mechanism is provided between the body and the collector cassette for connecting and disconnecting the body and the collector cassette through one-touch operation. The electric connector for high voltage is provided between the body and the collector cassette for electrically connecting and disconnecting the body and the collector cassette through one-touch operation. As a result the collector cassette is detachably mounted on the body.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: November 16, 2010
    Inventors: Makoto Takayanagi, Akitoshi Takagi, Yasunori Imagawa
  • Patent number: 7815720
    Abstract: A dual-filter electrically enhanced air-filtration apparatus and method are described. One embodiment includes an upstream electrically enhanced filter; a downstream electrically enhanced filter; a first control electrode adjacent to an upstream side of the upstream electrically enhanced filter; a second control electrode adjacent to a downstream side of the downstream electrically enhanced filter; and an ionizing electrode disposed between the upstream and downstream electrically enhanced filters, the ionizing electrode having an electrical potential with respect to the first and second control electrodes. Optional field electrodes may be included to enhance the electric fields associated with the upstream and downstream electrically enhanced filters.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: October 19, 2010
    Assignee: StrionAir, Inc.
    Inventor: Peter J. McKinney
  • Publication number: 20100147151
    Abstract: 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: Application
    Filed: November 30, 2009
    Publication date: June 17, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Ho Ji, Kochiyama Yasuhiko, Hyong Soo Noh, So Young Yun, Han Wook Cho
  • Patent number: 7717984
    Abstract: An electrostatic precipitator unit used for the removal of coolant liquid and particles generated by a machine tool includes an electrostatic precipitator cell. The electrostatic precipitator cell includes power and collector ground fins and an ionizer grid positioned below the fins. The lower edges of the power fins are spaced above the collector ground fins to prevent contact of the liquid on the ground fins with the power fins. An electrical contact assembly for supplying electrical current to the ionizer grid and power fins is electrically isolated from all ground contacts by dielectric standoffs which define an insulating air gap. The likelihood of liquid tracking to ground is therefore eliminated.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: May 18, 2010
    Inventor: Mark Michael Schreiber
  • Publication number: 20100043640
    Abstract: A system, apparatus and method for generating electricity from renewable geothermal, wind, and solar energy sources includes a heat balancer for supplementing and regulating the heat energy fed to a turbine generator; a hydrogen-fired boiler for supplying supplementary heat; and an injection manifold for metering controlled amounts of superheated combustible gas into the working fluids to optimize efficiency. Wind or solar power may be converted to hydrogen in an electrolysis unit to produce hydrogen. A phase separator unit that operates by cavitation of the geothermal fluids removes gases from the source fluid. A pollution prevention trap may be used to remove solids and other unneeded constituents of the geothermal fluids to be stored or processed in a solution mining unit for reuse or sale. Spent geothermal and working fluids may be processed and injected into the geothermal strata to aid in maintaining its temperature or in solution mining of elements in the lithosphere.
    Type: Application
    Filed: December 12, 2008
    Publication date: February 25, 2010
    Inventor: Patrick J. Kelly
  • Patent number: 7641718
    Abstract: The electrostatic precipitator (1) includes the housing (8) having the air duct (7) for communicating between the inlet (4) for sucking the contaminated air (3) and the outlet (6) for discharging the cleaned air (5), the air flow generator (10) generating the air flow (9) in the air duct (7), the collecting section (14) having a plurality of adsorption plates (13) rotating in accordance with the adsorption shaft (11), and the discharge section (24) equipped with the charging plate (20) having the discharge surface (21) opposing the adsorption surface (12) of the adsorption plate (13) and a plurality of the discharge electrodes (19) provided at the edge (22) of the charging plate (20) opposite the suction inlet.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: January 5, 2010
    Assignees: Zesu Giko Co., Ltd, Hidec Co., Ltd
    Inventors: Masatoshi Furuta, Shigenobu Ohkura
  • Patent number: 7597749
    Abstract: A frame for an electrostatic precipitator cell is provided according to an embodiment of the invention. The frame in one embodiment includes a first frame portion adapted to at least partially receive the electrostatic precipitator cell and a second frame portion adapted to at least partially receive the electrostatic precipitator cell. The second frame portion assembles to the first frame portion to form the frame. The frame includes one or more side portions, an open top end, and an open bottom end. The frame receives and holds the electrostatic precipitator cell.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: October 6, 2009
    Assignee: Oreck Holdings, LLC
    Inventors: Christopher M. Paterson, Dennis T. Lamb, Bruce M. Kiern, Owen T. Bourgeois
  • Publication number: 20080314250
    Abstract: The disclosed electrostatic precipitator cartridge for a tower air cleaner in accord with the present invention is low-cost, because constructed of injected molded plastics material and stamped and extruded metal components. It is easy to clean, not only because it's constitutive metal parts and plastic components are machine washable but also because the cartridge as a whole is machine washable, the pieces and components are designed and arranged to prevent intracartridge fluid buildup or retention after washing, thereby eliminating any electrical shorting or arcing or other undesirable phenomena resulting therefrom that could interfere with the operation of the electrostatic filter cartridge.
    Type: Application
    Filed: June 20, 2007
    Publication date: December 25, 2008
    Inventors: Ross L. Cowie, Rudy A. Vandenbelt
  • Publication number: 20080250930
    Abstract: An electrostatic ionization system in a precipitation device for purifying a gas stream passing through it includes: an electrically conductive plate including a plurality of nozzles configured for passage of the gas stream; a sleeve positive-fittingly disposed on each nozzle; a high-voltage grid; a plurality of rod-shaped high-voltage electrodes each having an end connected to the grid and an exposed free end arranged identically centrally in a corresponding one of the nozzles, the electrodes each forming a circumferential gap and arranged at an electrical potential of the grid, wherein the free end of each of the electrodes is exposed downstream after the corresponding nozzle, wherein a wall of each sleeve is permeable to the gas stream and includes at least one of a grid, a perforated sheet and individual rods equidistantly spaced from each other and having free ends terminating in a holding ring.
    Type: Application
    Filed: September 7, 2006
    Publication date: October 16, 2008
    Inventors: Andrei Bologa, Hanns-Rudolf Paur, Klaus Woletz
  • Patent number: 7431755
    Abstract: A dust-collecting electrode where at least one unit electrode between the unit electrodes facing each other includes: a ceramic dielectric body, a surface conductor disposed so as to cover at least a part of the surface of the ceramic dielectric body on the side where the unit electrodes face each other, and an internal conductive layer disposed inside the ceramic dielectric body and being electrically independent of the surface conductor. The dust-collecting electrode being capable of generating an electric field and silent discharge between the unit electrodes by applying voltage between the surface conductor of the one unit electrode and the other unit electrode and generating creeping discharge on the surface of the one unit electrode by applying voltage via the ceramic dielectric body.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: October 7, 2008
    Assignee: NGK Insulators, Ltd.
    Inventors: Naoki Kobayashi, Yasumasa Fujioka
  • Patent number: 7390352
    Abstract: An air purifier with front-loading electrodes includes an electrode loading compartment for storing the plate electrodes. When the air purifier is in a closed configuration, the electrode loading compartment cooperates with the housing to fully enclose the plate electrodes. When the plate electrodes need to be removed, the electrode loading compartment can be moved translationally with respect to the housing to define a gap therebetween. The electrode loading compartment can then be rotated to access and remove the plate electrodes.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: June 24, 2008
    Assignee: Sylmark Holdings Limited
    Inventors: Shengwen Leng, Guangsheng Liu
  • Publication number: 20080028937
    Abstract: An air cleaner conductor system is provided according to an embodiment of the invention. The air cleaner conductor system includes an electrostatic precipitator assembly, a chassis including an electrostatic precipitator receptacle and a power supply, and two or more electrical contacts located in the electrostatic precipitator receptacle and coupled to the power supply. The two or more electrical contacts extend at least partially into the electrostatic precipitator receptacle. The electrostatic precipitator assembly comes into contact with the two or more electrical contacts when the electrostatic precipitator assembly is substantially fully inserted into position in the electrostatic precipitator receptacle.
    Type: Application
    Filed: August 4, 2006
    Publication date: February 7, 2008
    Inventors: Christopher M. Paterson, Dennis T. Lamb, Jadon Gutierrez
  • Publication number: 20080017035
    Abstract: A frame for an electrostatic precipitator cell is provided according to an embodiment of the invention. The frame in one embodiment includes a first frame portion adapted to at least partially receive the electrostatic precipitator cell and a second frame portion adapted to at least partially receive the electrostatic precipitator cell. The second frame portion assembles to the first frame portion to form the frame. The frame includes one or more side portions, an open top end, and an open bottom end. The frame receives and holds the electrostatic precipitator cell.
    Type: Application
    Filed: July 18, 2006
    Publication date: January 24, 2008
    Inventors: Christopher M. Paterson, Dennis T. Lamb, Bruce M. Kiern, Owen T. Bourgeois
  • Publication number: 20080014851
    Abstract: A flotage trapping device comprises at least one plus electrode and at least one minus electrode. The plus electrode and minus electrode are alternately disposed. The electrodes trap the flotage floating in the air. Another flotage trapping device comprises at least one electrode of a single polarity and a space ion generating device for generating ions of polarity opposite to that of the electrode so as to form an ion space around or adjacent said electrode. A flotage repelling device comprises at least one electrode of a single polarity, and a space ion generating device for generating ions of the same polarity as that of the electrode so as to form an ion space around or adjacent of the electrode.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 17, 2008
    Inventor: Makoto TAKAYANAGI
  • Patent number: 7291206
    Abstract: A pre-ionizer for use with an electrostatic precipitator is provided according to an embodiment of the invention. The pre-ionizer includes two or more corona ground elements arranged in a substantially parallel orientation. A corona ground element of the two or more corona ground elements includes a substantially elongate body including a proximate end and a distal end and first and second projections formed on the proximate end and the distal end. The first and second projections retain the corona ground element in the electrostatic precipitator. The pre-ionizer further includes one or more corona charge elements positioned between two adjacent corona ground elements of the two or more corona ground elements. When a high voltage electrical field is placed across the two or more corona ground elements and the one or more corona charge elements, the pre-ionizer at least partially ionizes airflow through the pre-ionizer.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: November 6, 2007
    Assignee: Oreck Holdings, LLC
    Inventors: Bruce M. Kiern, Dennis T. Lamb, Charles W. Reynolds, Christopher M. Paterson
  • Patent number: 7291207
    Abstract: Embodiments of the present invention are directed to a method and apparatus for moving air using an air treatment apparatus, the air treatment apparatus preferably including at least one first electrode, at least one second electrode, and at least one third electrode, and at least a portion of the third electrode is positioned downstream of the second electrode. The air treatment apparatus includes a grill configured to be attached to the air treatment apparatus, and the grill is movable between a first position in which the grill covers the portion of the third electrode and a second position in which the portion of the third electrode is uncovered. The grill is attached to or detached from the housing when in the second position.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: November 6, 2007
    Assignee: Sharper Image Corporation
    Inventors: Charles E. Taylor, Andrew J. Parker, Igor Y. Botvinnik, Shek Fai Lau, Gregory S. Snyder, John Paul Reeves
  • Patent number: 7273516
    Abstract: A plate heat exchanger for exchanging heat between a first air stream and a second air stream includes a plurality of plates limiting first and second exchange chambers which are serially arranged in a transversal direction with respect to the plates. A first air stream of outside air passes through the first exchange chambers, a second air stream originating from ventilated rooms passes through the second exchange chambers. The heat exchanger further includes an ionization device for ionizing particles entrained in the first air stream so that the particles deposit at conductive plates of the first exchange spaces, a water distribution system for periodically discharging water into the first exchange spaces for cleaning the plates of the heat exchanger from deposited particles, and a water collection device for discharging collected water.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: September 25, 2007
    Assignee: Mentus Holding AG
    Inventor: Urs A. Weidmann
  • Patent number: 7264659
    Abstract: A plate fastener for an electrostatic precipitator cell is provided according to an embodiment of the invention. The plate fastener includes a fastener shaft including a head. The fastener shaft extends through the electrostatic precipitator cell. The head is adapted to retain a first end plate of the electrostatic precipitator cell. The plate fastener further includes a plurality of spacers configured to fit onto the fastener shaft. A spacer of the plurality of spacers is adapted to be positioned between successive polarity plates of a plurality of plates of the electrostatic precipitator cell. The plate fastener further includes a one-way shaft retainer configured to affix to the fastener shaft. The one-way shaft retainer is adapted to retain a second end plate of the electrostatic precipitator cell. The plate fastener affixes the plurality of plates together into a set of spaced-apart plates.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: September 4, 2007
    Inventor: Paul A. Moshenrose
  • Patent number: 7258715
    Abstract: An improved filter element for use in an electrostatic precipitation air cleaning device, the filter element including rod electrodes arranged through a stack of alternating fluted plastic sheets and plate electrodes. Successive plate electrodes are arranged to make contact with an alternating one or the other of the rod electrodes. The plate and rod electrodes may be composed of high impedance materials such as paper and plastic, respectively. An arrangement for removably inserting a filter element into an air cleaning device is provided. The arrangement also removably provides electrical connectivity between the filter element and the air cleaning device. The filter element can thus be readily removed and re-installed by a user.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: August 21, 2007
    Assignee: Kaz, Incorporated
    Inventors: Paul E. Cox, Stephen M. Gatchell, James J. Best, Steven Vordenberg, Boris Kontorovich, Kevin Lozeau
  • Patent number: 7244289
    Abstract: An air purifier includes an outer casing and an ionizer module. The outer casing has a top portion, a bottom portion having an electrode opening, an air purifying cavity defining between the top and bottom portion, and a peripheral opening communicating with the air purifying cavity. The ionizer module includes a power unit and an ionizing electrode unit. The ionizing electrode unit is detachably slid into the air purifying cavity through the electrode opening of the bottom portion of the outer casing, wherein the ionizing electrode unit has a top terminal end arranged to electrically contact with the power unit to ionize the ambient air for emitting ozone thereto when the ambient air is circulated through the peripheral opening along the ionizing electrode unit.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: July 17, 2007
    Inventor: Zhi Xiang Su
  • Patent number: 7244290
    Abstract: An electrostatic room air cleaner includes a housing having a given profile and a plurality of electrostatic precipitation collector units arrayed in the housing with a common fan to circulate room air through the plurality of electrostatic precipitation collector units simultaneously. A total clean air delivery rate is delivered that is determined as the arithmetic sum of the clean air delivery rates of the plurality of electrostatic precipitation collector units arrayed in the housing of given profile. The greater the number of units arrayed, the smaller may be their size, and the easier they are to handle, maintain and replace.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: July 17, 2007
    Assignee: Headwaters, Inc.
    Inventors: Rudy A. Vandenbelt, Charles M. Lanning, Ross L. Cowie
  • Patent number: 7238225
    Abstract: In a plasma air dust collector, the plasma air dust collector includes a first electrode fixing unit and a second electrode fixing unit respectively having a power terminal; at least two dust collecting electrodes; a discharge electrode arranged between the dust collecting electrodes; a terminal protrusion formed at the bottom end of each dust collecting electrode in the length direction; a terminal protrusion insertion hole formed at a side of the first electrode fixing unit; a combining protrusion formed at a side of the first electrode fixing unit and the second electrode fixing unit; and a combining groove formed at the both ends of each dust collecting electrode.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: July 3, 2007
    Assignee: LG Electronics Inc.
    Inventors: Young-Ki Hong, Sung-Hwa Lee, Jeong-Ho Park
  • Patent number: 6958089
    Abstract: An electrostatic precipitator includes a frame, several parallel square metallic rods securely disposed in the frame, and several metallic boards positioned parallel in the frame for charges to be deposited on, and spacing elements; the metallic boards have through holes thereon, and the square metallic rods are passed through corresponding through holes of the metallic boards; the spacing elements are in the shape of a tube having a lengthwise extending gap, and they are positioned one on top of another around a whole length of the metallic rods for spacing the metallic boards equidistantly apart with; the spacing elements are flexible and resilient so as to tightly embrace the metallic rods when they are fitted around the rods.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: October 25, 2005
    Assignee: Hung Hsing Electric Co., Ltd.
    Inventor: Ping Huang
  • Patent number: 6951580
    Abstract: A bow-reduced precipitator collector plate assembly and an appertaining method include a precipitator collector plate that contacts a spring-like stiffening element configured to be attached to a fixed anchor or an adjacent anchoring collector plate. The stiffening element is configured to apply a force in a direction normal to a primary plane, which is generally co-linear but opposite in direction of a direction of bowing, of the precipitator collecting plate.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: October 4, 2005
    Assignee: NiSource Corporate Services Company
    Inventor: Gregory Ludwicki
  • Patent number: 6918951
    Abstract: An air filter includes a stack of filter discs formed with contacting faces having surface formations defining filtering passageways between adjacent discs for removing solid particles from the air passing through the stack. The filter discs in the stack further include electrodes spaced from each other axially of the stack and connectable to a voltage source for producing an electrical field attracting solid particles towards the discs to thereby enhance removal of the solid particles from the air passing through the stack. The filter discs in the stack include a first plurality of insulating discs composed of insulating material, and a second plurality of electrode discs composed of electrically-conductive material, with the electrode discs separated from each other by at least one insulating disc.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: July 19, 2005
    Assignee: Milow Ltd.
    Inventor: Gideon Rosenberg
  • Patent number: 6852149
    Abstract: An electrostatic precipitator includes several dividable supporting rods, which are passed through corresponding big holes, and tightly fitted in corresponding small holes of metallic boards so as to support the metallic boards equidistantly spaced apart in position. Each supporting rod is made of several connectable parts, each of which has an insertion end portion, and a hollow holding end portion. Each supporting rod is assembled by means of joining insertion end portions to adjacent hollow holding end portions, and is apart from the edges of corresponding big holes of the metallic boards. Thus, the metallic boards are firmly held in position by means of tops of hollow holding end portions of those connectable parts that are joined to small through holes thereof.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: February 8, 2005
    Assignee: Hung Hsing Electric Co., Ltd.
    Inventor: Ping Huang
  • Patent number: 6576046
    Abstract: A modular two-stage electrostatic precipitator for extracting airborne particles includes individual ionizer/collector cell modules having integrated power supplies and diagnostic systems. The cell modules are adapted to be joined blindly to one another in end-to-end nested relation through nestable end plates and in a series circuit utilizing floating electrical connectors. The module end plates provide self-correction in misalignment during a blind connection and provide sealed end plate cavities for the power supply and electrical connections. The diagnostic system provides detection for any open system circuit and/or short circuit condition and allows for trouble shooting on an individual cell module basis.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: June 10, 2003
    Assignee: Fedders Corporation
    Inventors: Dean B. Pruette, Charles A. Rector, David R. Phelps
  • Patent number: 6117403
    Abstract: A process and apparatus for reducing particulate, nitrogen oxides ("NOx"), sulfur dioxide ("SO.sub.2 "), and mercury ("Hg") emissions from the combustion exhaust of fossil fuel fired plants while producing an end product that is commercially useful, comprising the steps of oxidizing Hg, NOx and SO.sub.2 using a barrier, pulse, corona, or electron beam electrical discharge apparatus (100) to produce HgO and the acids HNO.sub.3 and H.sub.2 SO.sub.4 collecting the HgO, acids and particulates in a wet ESP (120), and separating the particulates from the collected acid mixture, then separating and concentrating the acids for industrial use.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: September 12, 2000
    Assignee: Zero Emissions Technology Inc.
    Inventors: Francis R. Alix, S. Edward Neister, Christopher R. McLarnon
  • Patent number: 6117216
    Abstract: An electrostatic precipitator for purifying air from charged particles. The precipitator includes at least a pair of electrode elements (R and A) spaced apart by a gap distance (a). The electrode elements are moisture-proof. At least one of the electrode elements is composed of a high ohmic cellulose material and is coated with a thin moisture-proof layer.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: September 12, 2000
    Assignee: Strainer LPB Aktiebolag
    Inventor: Andrzej Loreth
  • Patent number: 5759240
    Abstract: A laminar flow electrostatic precipitator (200) is provided with a plurality of sandwich structure electrodes (100) alternatingly coupled to a respective one of a pair of output terminals (222, 224) of high voltage power supply (220). Each of the sandwich structure electrodes (100) includes a three layer electrode body (110, 110', 110") formed by a pair of plate members (112, 114) and a support structure (120, 120', 120") disposed between the pair of plate members for maintaining the plate members in a substantially flat contour. The spacing between the plurality of sandwich structure electrodes (100) and the velocity of gas flow there past is selected to achieve laminar flow and thereby maximize the particulate removal efficiency of the precipitator (200).
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: June 2, 1998
    Assignee: Environmental Elements Corp.
    Inventor: Andrew R. Becker
  • Patent number: 5725638
    Abstract: A modular dust collection plate assembly (10) for use in an electrostatic precipitator is provided. The dust collection plate assembly (10) includes at least one panel member (100) and at least one waveform member (200) releasably coupled together. The panel member (100) is characterized by a substantially planar contour, having first and second faces on opposing sides thereof which are commonly bounded laterally by a pair of lateral edge portions (110, 110) extending in a longitudinal direction. The waveform member (200) also extends in the longitudinal direction and is characterized by a predetermined curvilinear cross-sectional contour that enables the waveform member (200) to disrupt at least a portion of the gaseous flow that would pass across it during operation in an electrostatic precipitator.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: March 10, 1998
    Assignee: Environmental Elements Corp.
    Inventors: Steven R. Cross, Stuart J. Pass
  • Patent number: 5669963
    Abstract: A simplified electronic air cleaner cell structure having a pair of spaced plastic side support members which provide the entire support for the ionizer elements and collector elements mounted therebetween. Portions of one of the side members are made of an electrically conductive material, and the high voltage ionizer and collector elements are mounted thereto, with electrical interconnections being made between those conductive portions and a power source.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: September 23, 1997
    Assignee: Carrier Corporation
    Inventors: Woodson Horton, Mark D. Lane, Ronald R. Smith, Timothy R. Mitchell
  • Patent number: 5641342
    Abstract: An interconnection is made between a pair of electrostatic air cleaner cells which are placed in side-by-side relationship within a housing, such that when one is removed from the housing, the other is also removed.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: June 24, 1997
    Assignee: Carrier Corporation
    Inventors: Ronald R. Smith, Joseph C. Summa