One Or More Electrodes Common To Plural Fields Patents (Class 96/76)
  • Patent number: 10943849
    Abstract: An array of flow units for controlling a flow of a fluid is disclosed. The flow units are arranged to have a lateral extension in a common lateral plane. A downstream side of a first flow unit is in fluid communication with an upstream side of a second flow unit to allow a flow of fluid to pass through the flow units. The flow units comprise first and second electrodes which are connectable to a voltage source. At least a portion of the first electrode has a maximum height in a direction parallel to the direction of the flow and a maximum gauge in a direction orthogonal to the direction of the flow, wherein the maximum height is larger than the maximum gauge to improve the pumping efficiency of the device. A method for controlling a fluid flow using the array is also disclosed.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: March 9, 2021
    Inventors: Robert Thorslund, Are Björneklett, Peter Nilsson
  • Patent number: 9441845
    Abstract: The present invention provides methods and systems for an ion generation device that includes an elongate housing having a back portion and a pair of side portions extending from the back portion and forming a cavity therein. A conductive portion is disposed within the cavity and connected to a power supply for providing power to the conductive portion. A plurality of tines are engaged to the conductive portion.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: September 13, 2016
    Assignee: Global Plasma Solutions, LLC
    Inventor: Charles Houston Waddell
  • Patent number: 9132383
    Abstract: The invention provides a method for the removal of a gaseous fluid comprising (a) applying an electric field between a first electrode arranged to generate a corona discharge and a second electrode, comprising a haze-permeable electrically conductive sieve of a plurality of conductive strands, (b) atomizing a liquid to providing a liquid haze between the first and the second electrode, wherein the liquid is a solvent for the gaseous fluid, and (c) arranging a substrate behind, relative to the first electrode, the second electrode.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: September 15, 2015
    Assignee: MEMIC EUROPE B.V.
    Inventors: Willibrordus Nicolaas Johannes Ursem, Rein André Roos, Johannes Cornelis Maria Marijnissen
  • Publication number: 20150090119
    Abstract: An Environmental Control System may use an electronic air treatment system to control humidity in an aircraft. The electronic air treatment system may use an electronic charging system and a separation system. A turbine rotor may drive a power generating stage to provide high voltage power to the electronic charging system. The charging stage may charge airflow passing through to repel liquid particles away from the airflow. Liquid droplets may be collected and centrifugally flung toward a periphery of the separation system. The liquid particles may be collected outside of the airflow, which may be allowed to pass through the separation system and out to a destination in the aircraft without the collected liquid.
    Type: Application
    Filed: October 1, 2013
    Publication date: April 2, 2015
    Inventors: Henry Au, Dennis M. Morita, Mark Gee
  • Patent number: 8961659
    Abstract: An electrically enhanced air filtration system is disclosed which uses rear fiber charging is disclosed. In particular, a fibrous filter may be placed in an upstream position within the system with one or more ionization arrays positioned downstream or to the rear of the fibrous filter in terms of airflow direction. The fibrous filter may include a grounded side and fiber side with the grounded side being upstream of the fiber side. The ionization array may include a plurality of electrodes each extending unidirectionally toward the fibrous filter.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: February 24, 2015
    Assignee: Carrier Corporation
    Inventor: Peter J. McKinney
  • Publication number: 20140109768
    Abstract: An air filtration system includes a frame directing an airflow through the air filtration system and a media filter disposed in the frame including one or more filtration elements. The system further includes one or more alignment features and one or more sealing elements interactive with the one or more alignment features to prevent incorrect installation of the media filter into the frame. A method of installing a media filter in an air filtration system includes aligning an alignment feature of the media filter with an opening in a frame of the air filtration system and inserting the media filter into the frame. The alignment feature ensures that the media filter is inserted in the frame in a correct orientation.
    Type: Application
    Filed: May 14, 2012
    Publication date: April 24, 2014
    Inventor: Ronald L. Bowman
  • Patent number: 8690996
    Abstract: 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: Grant
    Filed: January 28, 2011
    Date of Patent: April 8, 2014
    Assignee: 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
  • Patent number: 8673068
    Abstract: 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: Grant
    Filed: September 18, 2008
    Date of Patent: March 18, 2014
    Inventor: Alexei Mikhailovich Volodin
  • Patent number: 8470084
    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: Grant
    Filed: November 30, 2009
    Date of Patent: June 25, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun Ho Ji, Kochiyama Yasuhiko, Hyong Soo Noh, So Young Yun, Han Wook Cho
  • Patent number: 8002876
    Abstract: The invention relates to an electrostatic filter method and electrostatic filter for separating particles from industrial waste gases, wherein an optimal electric charging or ionization in the ionization zone are performed in a high-voltage zone and its unchanged ducts with one high-voltage supply source to ensure the subsequent particle separation in the separation zone at sufficient field strength which requires minimal energy input.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: August 23, 2011
    Assignee: Balcke-Durr GmbH
    Inventors: Werner Jakob Frank, Helga Frank, legal representative
  • Patent number: 7976615
    Abstract: An electro-kinetic air mover for creating an airflow using no moving parts. The electro-kinetic air mover includes an ion generator that has an electrode assembly including a first array of emitter electrodes, a second array of collector electrodes, and a high voltage generator. Preferably, a third or leading or focus electrode is located upstream of the first array of emitter electrodes, and/or a trailing electrode is located downstream of the second array of collector electrodes. The device can also include an interstitial electrode located between collector electrodes, an enhanced collector electrode with an integrally formed trailing end, and an enhanced emitter electrode with an enhanced length in order to increase emissivity.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: July 12, 2011
    Assignee: Tessera, Inc.
    Inventors: Charles E. Taylor, Jim L. Lee
  • Patent number: 7837749
    Abstract: A system (10) for monitoring an operating condition of an electrostatic precipitator rapper system (12) includes a rapper (24) configured to mechanically actuate to disengage pollutants from a plate of the electrostatic precipitator (12). The system also includes a sensor (38, 40) configured to obtain and transmit signals representative of vibration, motion, or current behavior of the rapper; and a processor (52) configured to receive the signals from the sensor and to detect whether the rapper is mechanically actuated.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: November 23, 2010
    Assignee: General Electric Company
    Inventors: Charles Erklin Seeley, Eladio Clemente Delgado, John Erik Hershey, Harold Woodruff Tomlinson, Jr., David Fulton Johnston, Terry Lewis Farmer
  • 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
  • Patent number: 7815719
    Abstract: A system and method for ionization detection in electrically enhanced air filtration systems is described. One embodiment includes a system for electrically enhanced air filtration, the system including an electrically enhanced filter having a filter and an ionizing electrode disposed on an upstream side of the filter; a control device connected to the electrically enhanced filter, wherein the control device can control the electrically enhanced filter; and an ionization detector, wherein the ionization detector is adjacent to the electrically enhanced filter and wherein the ionization detector is connected to the control device.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: October 19, 2010
    Assignee: StrionAir, Inc.
    Inventors: Peter J. McKinney, Adam J. Cohen
  • Patent number: 7585352
    Abstract: A method and apparatus electrically charges particulates that need to be removed from a moving air stream. Various methods of corona charging of particulates are used in the fields of electrostatic precipitation of dust, printers and copying machines. This invention is preferably specifically aimed at improving the separation and collection of particulates from dust, mist or vapor generating devices. In another embodiment, a grid electrostatic precipitator, in combination with a corona pre-charger, is used to remove diesel exhaust.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: September 8, 2009
    Inventor: John P. Dunn
  • Patent number: 7531028
    Abstract: An air conditioning system includes an air flow pathway extending through a housing from an inlet to an outlet. Air conditioning apparatus is disposed in the airflow pathway between the inlet and the outlet conditioning an air stream passing through the air flow pathway from the inlet to the outlet. A modular electrically stimulated air filter apparatus is carried by opposed, parallel frameworks mounted in series in the air flow pathway between the inlet and the air conditioning apparatus filtering entrapping contaminants in the air stream flowing through the housing from the inlet to the outlet. The opposed parallel frameworks are mounted to opposed supports affixed to the housing.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: May 12, 2009
    Assignee: Y2 Ultra-Filter, Inc.
    Inventors: Peter J. Mello, Kenneth B. Tippets, Jr., Mark Vanderginst
  • Patent number: 7377957
    Abstract: A method of utilizing a filter having a filter body removing solid particles from a fluid, in order to extend the life cycle of the filter body before cleaning or replacement thereof is required, characterized in applying to the fluid, upstream of the filter body, an AC electrical field of a frequency and intensity to agglomerate solid particles in the fluid reaching the filter body, such as to reduce the number of smaller particles in the fluid tending to clog the filter body. Also described are a plurality of filter constructions for extending the life cycle of the filter body in accordance with the above method.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: May 27, 2008
    Assignees: Innovative Defense Technologies Ltd.
    Inventor: Gideon Rosenberg
  • Patent number: 7361212
    Abstract: An electrostatic precipitator is detailed. The precipitator includes a conduit for the passage of particles in an air flow and a generator of an electrostatic field substantially orthogonal to the air flow, and an ion supply, capable of charging the particles, in which the generator includes a point electrode and a two dimensional surface electrode. The plane surface electrode includes an ion source and the point electrode includes a counter electrode and the counter electrode is earthed.
    Type: Grant
    Filed: November 11, 2003
    Date of Patent: April 22, 2008
    Assignee: The Secretary of State for Defence
    Inventors: James McDonald Clark, Timothy Graham Foat, Maurice Daverell Walker, Stephen Ray Preston
  • Patent number: 7297185
    Abstract: An electrostatic dust precipitator (1) is constructed mainly to include a housing (11) in which an air path (10) communicating between an inlet (8) and an outlet (9), an airstream generating unit (14) that causes generation of an airstream in the air path (10), a discharging unit (2) and a discharge guide unit (3) that charge fine particulate (103) with a corona discharge (100), a charging unit (4) that causes the fine particulate (103) charged with the corona discharge (100) to repel in accordance with a coulomb force, an attracting unit (5) that allows the fine particulate (103) to be attracted in accordance with the coulomb force and that thereby collects the fine particulate (103), a voltage supply unit (15) that supplies a discharge voltage for generation of the corona discharge (100) and for repelling by the charging unit (4) in accordance with the coulomb force, and a drive controller unit (20) that causes rotational driving of discharge plates and attracting plates.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: November 20, 2007
    Assignees: Zesu Giko Co., Ltd., Hidec Co., Ltd.
    Inventors: Masatoshi Furuta, Shigenobu Ohkura
  • Patent number: 7112236
    Abstract: A multistage space-efficient electrostatic collector cleans a gas flowing therethrough along a gas flow path having a first stage provided by a first corona discharge zone along the gas flow path, and a second stage provided by a second corona discharge zone along the gas flow path and spaced along the gas flow path from the first corona discharge zone. A method is provided for increasing residence time within the corona discharge zone of gas flowing through an electrostatic collector.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: September 26, 2006
    Assignee: Fleetguard, Inc.
    Inventors: Gregory W. Hoverson, Scott P. Heckel
  • Patent number: 7105041
    Abstract: An electrical type grid electrostatic collector/separator removes particles from an air stream. The apparatus includes multiple parallel grids that act as the porous material, enclosed in a sealed compartment so that the entrained air flows parallel and between one or more centrally located grids. A direct current high voltage field is established between the grids with the polarities alternating between facing grids. Finer particles may be temporally collected on plate or grid assemblies that are located out of the airflow. When non-conductive particles are present, external methods of pre-charging by corona discharge are preferably used. When non-conductive particles are present, both internal and external methods of pre-charging by corona discharge are used with the external method being preferred.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: September 12, 2006
    Inventor: John P. Dunn
  • Patent number: 7041157
    Abstract: An apparatus for separating and converting exhaust particulates from a stream of exhaust gas, especially a diesel engine, into gaseous substances, in which the exhaust gas is guided through a honeycomb filter (6) made from a porous ceramic material whose axially extending channels (1, 2) are open merely at one face side of the filter and are closed off at the respective other face side, and a voltage is applied to electrodes (3, 4) extending parallel to the channels (1, 2) of the honeycomb filter (6). The closure of the channels (1, 2) at the face side is made in such a way that the channels (1, 2) each extending at the same normal distance from one of the electrodes (3, 4) are either all open or all closed off at their face side (9). The channels (1, 2) are mutually offset in a brickwork-like way.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: May 9, 2006
    Inventor: Carl Maria Fleck
  • Patent number: 6773489
    Abstract: An electrical type grid electrostatic collector/separator removes particles from an air stream. The apparatus includes multiple parallel grids that act as the porous material, enclosed in a sealed compartment so that the entrained air flows parallel and between one or more centrally located grids. A direct current high voltage field is established between the grids with the polarities alternating between facing grids. The system is preferably used for conductive and semi-conductive materials because of the ease at which the particles can receive an induced charge. The charged particles are separated and collected when they are attracted toward the relatively open wire or woven grids and pass laterally through and onto the next attracting grid until they are out of the air stream and generally fall by gravity to the collection vessel. When non-conductive particles are present, external methods of pre-charging by corona discharge are preferably used.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: August 10, 2004
    Inventor: John P. Dunn
  • Patent number: 6508861
    Abstract: An improvement in an electrostatic precipitator and method for removing particulate contaminants entrained in a gas stream passed through an electrode arrangement in which particulates are charged in a first electrostatic field and subjected to a second electrostatic field to be removed and collected for further disposition. The electrode arrangement includes a charging section having a charging electrode and a field electrode, and a collecting section having a repelling electrode and a collecting electrode. The field electrode and the collecting electrode are integrated, providing a relatively compact construction, and the charging electrode and the repelling electrode are electrically separated by high voltage diodes in a single power supply arrangement such that the charging section and the collecting section each are provided with a corresponding electrostatic field operated at an optimum voltage and current for respectively charging and collecting particulate contaminants entrained in the gas stream.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: January 21, 2003
    Assignee: Croll Reynolds Clean Air Technologies, Inc.
    Inventor: Isaac Ray
  • Patent number: 5766319
    Abstract: In electric filters with a negative corona, an aerosol is formed in the entrance area if ammonia is present in the flue gas, reducing the separation performance of the filter. To avoid this, spray electrodes and separation electrodes provided in the entrance area of the filter are wired so that a positive corona forms there. In sections downstream in the flow direction of the gas, spray electrodes and separation electrodes are wired such that a negative corona forms there.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: June 16, 1998
    Assignee: ABB Research Ltd.
    Inventor: Ulrich Kogelschatz
  • Patent number: 3932480
    Abstract: Novel compounds are disclosed which release a silver halide solvent in the presence of alkali, which compounds may be defined as quinone-or naphthoquinone-methide precursors containing the silver halide solvent moiety. These novel compounds are useful in photographic products and processes.
    Type: Grant
    Filed: May 3, 1974
    Date of Patent: January 13, 1976
    Assignee: Polaroid Corporation
    Inventors: J. Michael Grasshoff, Lloyd D. Taylor