Including Baffling, Deflection, Or Restriction Of Gas Flow Patents (Class 95/78)
  • Patent number: 10376831
    Abstract: Provided is a solvent separation method and a solvent separation apparatus in which a vaporized solvent is collected at one internal side of a solvent separation unit by attracting the vaporized solvent based on electric field, while the vaporized solvent is prevented from coming into contact with electrodes, and the collected solvent is discharged from the solvent separation unit. Different electric fields are alternately applied to a pair of first electrodes and a pair of second electrodes present at predetermined locations inside a tetragonal tubular solvent separation unit to attract a vaporized solvent toward the second electrodes. Thus, the vaporized solvent is collected in a space between the second electrodes inside the solvent separation unit, and the collected solvent is discharged from the solvent separation unit, together with a portion of the exhaust atmosphere present around the collected solvent.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: August 13, 2019
    Assignee: Panasonic Corporation
    Inventors: Tomohiro Ujino, Koichi Nagai, Naofumi Hino
  • Patent number: 10281161
    Abstract: In an air conditioner, an upper heat exchanger and a lower heat exchanger exchange heat between air and a refrigerant. An air cleaner includes a charging unit for charging particles in the air and a dust collecting unit for collecting the particles charged by the charging unit by an electrostatic force. An indoor unit body houses the upper heat exchanger and the lower heat exchanger and houses the air cleaner of which the center position in the height direction is positioned lower than a connection part between the upper heat exchanger and the lower heat exchanger.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: May 7, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Reiji Morioka
  • Patent number: 10245593
    Abstract: An air filter arrangement is provided for filtration of particles in an airflow having an airflow direction. The air filter arrangement includes an electrostatically charged filter, a first ionization device, and a second ionization device. The first ionization device is arranged upstream of the electrostatically charged filter and the second ionization device is arranged downstream of the electrostatically charged filter. An air filtering apparatus is also described.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: April 2, 2019
    Assignee: Elfi Elektrofilter Aktiebolag
    Inventor: Jan-Olof Wallin
  • Patent number: 9731299
    Abstract: 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: Grant
    Filed: October 31, 2014
    Date of Patent: August 15, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Terutsugu Segawa, Koichi Nagai, Naofumi Hino
  • Patent number: 9468935
    Abstract: Disclosed is a system for filtering airborne particles from an occupied space. The system permits the removal of airborne particles by manipulating both the charge and the size of the particles, thus enabling the capture of particles that most other typical filtration systems leave behind. More specifically, the system captures small airborne particles through the use of a series of electric fields, forcing them to be trapped in a series of filters or collide to form larger particles, whereby their movement and capture are subsequently governed primarily by airflow. The system controls particle behavior by utilizing specific electromagnetic fields to collide particles, capture particles, and deactivate live pathogens that get captured.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: October 18, 2016
    Inventor: Donald H. Hess
  • Patent number: 9296485
    Abstract: An aircraft comprising a Rubens' tube for distributing gas within the aircraft. The Rubens' tube comprises a tube with a plurality of outlets; an inlet for feeding the gas into the tube; and a loudspeaker arranged to set up a standing acoustic wave within the tube. Typically the Rubens' tube is arranged to feed inert gas into a fuel tank of the aircraft.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: March 29, 2016
    Assignee: Airbus Operations Limited
    Inventors: Richard Haskins, Timothy Leigh
  • Patent number: 9168471
    Abstract: An air filter medium consisting of a non-woven is provided, which is produced using a melting and spinning method and has a depth filter constituent and a surface filter constituent, wherein the air filter medium is configured such that it has long-lasting functionality owing to the depth filter constituent and can be substantially regenerated with a reverse pulse owing to the surface filter constituent.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: October 27, 2015
    Assignee: IREMA-FILTER GMBH
    Inventors: Anke Jung, Andreas Seeberger
  • Patent number: 8979961
    Abstract: The Invention relates to a vacuum cleaner filter bag comprising a bag wall, wherein the bag wall comprises precisely one nonwoven layer in the form of a melt-spur microfibrous nonwoven layer.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: March 17, 2015
    Assignee: Eurofilters Holding N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20140352535
    Abstract: A method and to a device for the electrostatic separation of fine dust particles from gases that flow through a housing (1) containing perforated plates (6) and electrodes (4, 5). An electric field is created between the electrode (4) on the inflow opening side and the electrode or electrodes (5) having positive polarity on the outflow side. The removal of negatively charged fine dust particles (9) is carried out by deposition on the inflow side of the perforated plates (6), and the removal of positively charged fine dust particles (11) is carried out on the outflow side. Fine dust particles without charge (10) are charged after the last perforated plate (6) in an ionisation chamber (8) and deposit on the outflow side of the last perforated plate (6).
    Type: Application
    Filed: August 13, 2012
    Publication date: December 4, 2014
    Inventor: Peter Oertmann
  • Patent number: 8845782
    Abstract: A modular ductwork assembly decontaminates an air stream circulating within a heating, ventilation and air conditioning (HVAC) system. The assembly includes one or more of (a) an ionizing module for removing particulates from the air stream, (b) a sterilization module for neutralizing airborne pathogens present in the air stream, (c) an ozone treatment module for neutralizing pathogens or odoriferous or gaseous constituents or volatile organic compounds (VOCs) present in the air stream, optionally (d) baffles for slowing and disrupting the flow rate and promoting turbulence in the air stream traveling through the modules, optionally (e) a fan module for directing a treated air stream, optionally (f) an ozone sensor, optionally (g) a monitoring or ozone control means, and optionally (h) a means of delivering and repurposing generated ozone. Each of the modules is arranged substantially adjacent to at least one of the other modules.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: September 30, 2014
    Inventor: Karen Metteer
  • Publication number: 20140283686
    Abstract: Methods using vane electrostatic precipitators collect charged and uncharged particles with vane assemblies that are physically arranged to reduce the air flow rate to at or below 1.0 ft/sec (0.305 m/sec). In preferred embodiments, the main entrained air is divided into smaller proportions by using a plurality of vane assemblies in a vane electrostatic precipitator operating at a specific angle that have discharge electrodes in front of the vanes. This results in both the particles being charged and the flow rate of the air and articles being reduced as they traverse between vanes and over the vane surface. The vane width, operating angle, vane length and vane offset are designed to reduce the air flow rate. As a result, at the ends of the vanes, a high percentage of the air flow is less than 1 ft/s.
    Type: Application
    Filed: April 11, 2014
    Publication date: September 25, 2014
    Inventor: John P. Dunn
  • Publication number: 20140144319
    Abstract: A method for agglomerating dust particles in a cyclone dust apparatus which includes providing a cyclone dust removal apparatus that includes a housing; depositing a plurality of objects having affinity for particulate matter within said housing; directing a fluid stream having particulate matter disposed therein into the cyclone dust removal apparatus; and operating the cyclone dust removal apparatus whereby agglomeration of ambient particulate matter on respective objects occurs.
    Type: Application
    Filed: November 27, 2012
    Publication date: May 29, 2014
    Inventors: JOHN J. PAOLUCCIO, John A. Paoluccio
  • Patent number: 8710456
    Abstract: A multi-sectional linear ionizing bar with at least four elements is disclosed. First, disclosed bars may include at least one ionization cell with at least one axis-defining linear ion emitter for establishing an ion cloud along the length thereof. Second, disclosed bars may include at least one reference electrode. Third, disclosed bars may include a manifold for receiving gas or air from a source and for delivering same past the linear emitter(s) such that substantially none of the gas/air flows into the ion cloud. Fourth, disclosed bars may include means for receiving the ionizing voltage and for delivering same to the linear emitter(s) to thereby establish the ion cloud. In this way, disclosed ionizing bars may transport ions from the plasma region toward a charge neutralization target without inducing substantial vibration of the linear emitter and without substantial contaminants from the gas/air flow reaching the linear emitter.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: April 29, 2014
    Assignee: Illinois Tool Works Inc.
    Inventors: Aleksey Klochkov, Peter Gefter, Steven Bernard Heymann, Leslie W. Partridge, Greenberry Bedford Brown, Matthew T. Antonelli
  • Patent number: 8702848
    Abstract: One exemplary embodiment can be a process for separating particulate solids from a gas stream. The process can include regenerating a catalyst in a regenerator, separating particulate solids in first and second cyclone stages, passing the gas stream from the second cyclone stage to an external third stage separator, and passing the gas stream from the external third stage separator to a cyclone recirculator to obtain a clean gas stream.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: April 22, 2014
    Assignee: UOP LLC
    Inventors: Sathit Kulprathipanja, Paolo Palmas, Richard A. Johnson, II
  • Patent number: 8679237
    Abstract: On a centrifugal oil separator for an aircraft engine for separating the oil particles contained in the vent air, a metallic foam body (7), into which the loaded vent airflow (3) is introduced, is firmly integrated into a hollow-type engine shaft (1), while high-voltage electrodes (6), which electrostatically charge the oil droplets in the vent air, are arranged outside the engine shaft (1) within the vent airflow (3) forwarded to the engine shaft (1). The simply designed oil separator, which can be space-savingly arranged and cost-effectively produced, ensures efficient separation of even minute oil droplets from the air-oil mixture.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: March 25, 2014
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventor: Robert Angst
  • Patent number: 8679238
    Abstract: A centrifugal oil separator (3) provided with a metallic foam structure (4) and at least one high-voltage discharge electrode (5) arranged upstream of the metallic foam structure (4) is a component of a hollow engine shaft (2), with the metallic foam structure (4) and the high-voltage discharge electrode(s) (5) being integrated into the engine shaft (2) and energy transmission to the high-voltage discharge electrodes (5) being transformatory. Such a centrifugal oil separator, space-savingly arranged in an engine shaft, enables a high rate of oil separation to be achieved despite the centrifugal forces being low in particular in the area of the engine shaft, thus ensuring low oil consumption and preventing oil-contaminated air from getting into the atmosphere.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: March 25, 2014
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventor: Robert Angst
  • Patent number: 8663362
    Abstract: An HVAC system having an air cleaner, a fan configured to selectively generate an air flow, wherein at least a portion of the air flow is passed through the air cleaner, and a controller configured to control the air cleaner in response to at least one of a setting for controlling the fan and an operation characteristic of the fan is disclosed. A method of controlling an air cleaner by determining an air flow related criterion value, wherein the air flow is associated with an air flow through an air cleaner, comparing the determined air flow related criterion value to a threshold criterion value, and controlling the air cleaner as a function of a result of comparing the determined air flow related criterion value to the threshold criterion value is disclosed. A method of controlling an ozone concentration outputted by an air cleaner is disclosed.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: March 4, 2014
    Assignee: Trane International Inc.
    Inventor: John Mark Hagan
  • Patent number: 8663374
    Abstract: 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: Grant
    Filed: August 3, 2012
    Date of Patent: March 4, 2014
    Assignee: CFD Research Corporation
    Inventors: Kapil Pant, Shivshankar Sundaram, Yi Wang
  • Publication number: 20140053727
    Abstract: A device includes a chamber having an air inlet and an air outlet. The device includes a plurality of stages including at least a first stage adjacent a second stage. The plurality of stages are disposed in the chamber and each stage has a plurality of discharge electrodes disposed in an interior region and is bounded by an upstream baffle on an end proximate the air inlet and bounded by a downstream baffle on an end proximate the air outlet. Each stage has at least one sidewall between the upstream baffle and the downstream baffle. The sidewall is configured as a collection electrode and has a plurality of apertures disposed along a length between the upstream baffle and the downstream baffle. The upstream baffle of the first stage is positioned in staggered alignment relative to the upstream baffle of the second stage and the downstream baffle of the first stage are positioned in staggered alignment relative to the downstream baffle of the second stage.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 27, 2014
    Inventors: Stanley J. Miller, Jay C. Almlie, Ye Zhuang
  • Patent number: 8641793
    Abstract: Separation systems can utilize a combination of forces to separate constituent components of a working fluid from each other. Some separation systems utilize one or more of centrifugal and gravitational forces in the purification of hydrogen gas. Some separation systems can utilize one or more of electromotive and magnetic forces in the purification of hydrogen gas.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: February 4, 2014
    Assignee: Paradigm Waterworks, LLC
    Inventor: Lyle Bates
  • Patent number: 8641808
    Abstract: An apparatus for reducing soot particles in exhaust gas, particularly of an internal combustion engine, includes first and second at least partially electrically conductive structures with an intermediate space therebetween, a high voltage source forming a potential between the first and second structures and at least one at least partially electrically conductive intermediate structure in the intermediate space receiving an intermediate potential. A method for treating the exhaust gas includes conducting exhaust gas from the first to the second structure and applying a high voltage at least temporarily between the first and second structures. At least part of the soot particles in the exhaust gas is ionized or agglomerated and deposited on the second structure. A high voltage between potentials of the first and second structures is applied at least temporarily to the intermediate structure. An electric field is influenced favorably and disruptions from undesirable voltage flashovers are reduced.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: February 4, 2014
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Rolf Brück, Christian Vorsmann, Jan Hodgson
  • Patent number: 8613793
    Abstract: A method of modifying the airflow to the inlet of an axial fan. The method includes operating an axial fan to move air longitudinally through an air inlet opening of the axial fan, and, during operation of the axial fan, applying an electrical potential between an emitter and a collector to cause ionic air movement radially outwardly away from a central axis of the axial fan, wherein the radially outward air movement is caused upstream of the axial fan before the air reaches the air inlet opening.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: December 24, 2013
    Assignee: International Business Machines Corporation
    Inventors: Michael S. June, Chunjian Ni, Mark E. Steinke
  • Patent number: 8603262
    Abstract: A cleaning apparatus may include a flow source such as a fan which creates air flow through a ventilation duct or other structure to be cleaned. A projectile source projects projectiles such as dry ice pellets proximate the structure to dislodge debris particles therefrom and introduce the dislodged debris particles into the air flow. An electrostatic precipitator removes the particles from the air flow. An upstream sensor may be used to detect the particles upstream of the electrostatic precipitator and determine if the structure is clean using a controller. A downstream sensor may be used to detect the particles downstream of the electrostatic precipitator and determine the efficiency of the electrostatic precipitator using the controller. Carbon dioxide within the air flow may also be detected.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: December 10, 2013
    Inventor: Roseanne Lambert
  • Publication number: 20130247583
    Abstract: Systems and methods are provided for removing particulate matter from gas turbine engines during operation are provided. Gas turbine engines are also provided. The particulate matter is suspended in a primary gas flow stream passing through an engine flowpath. A flowpath surface of the engine flowpath is electrostatically charged to a first polarity to thereby impart an electrostatic charge of the first polarity to the particulate matter. A bleed discharge duct is electrostatically charged to a second polarity and intersects the engine flowpath to define a bleed air flowpath. The second polarity is opposite to the first polarity. A bleed port is in fluid communication with the bleed discharge duct and has an outlet exterior of the gas turbine engine.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 26, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventor: Yates Wong
  • Patent number: 8541709
    Abstract: A method and a device for electrostatically separating polyvalent granular insulating materials that have good properties, are energy efficient, and easily adapt to ambient atmospheric conditions and to physiochemical properties of the granules to be separated.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: September 24, 2013
    Assignees: APR2, Universite de Poitiers
    Inventors: Laur-Florentin Calin, Lucien Dascalescu
  • Patent number: 8506674
    Abstract: A method of cleaning a dust filter includes applying a negative electrical potential to a first electrode in a first area of a dust filter and applying a positive electrical potential to a second electrode disposed in a second area of the dust filter, wherein a voltage differential between the first and second electrodes is sufficient to cause electrostatic movement of dust from the first area to the second area. Then, the method further includes applying a negative electrical potential to the second electrode and applying a positive electrical potential to a third electrode disposed in a third area of the dust filter, wherein a voltage differential between the second and third electrodes is sufficient to cause electrostatic movement of dust from the second area to the third area, and wherein the first, second and third areas are generally linearly arranged.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: August 13, 2013
    Assignee: International Business Machines Corporation
    Inventors: Kathy L. Brown-Fitzpatrick, Gary D. Cudak, Christopher J. Hardee, James R. Lee, John Lloyd, William E. Lohmeyer, Jr., Andrew H. Wray
  • Publication number: 20130192341
    Abstract: A particle separation system for separating particles in an airflow upstream of a detection chamber in an aspirating smoke detector is disclosed. The particle separation system includes an airflow path for directing the airflow from an inlet to an outlet. The airflow path includes a first airflow path section in a first direction and a second airflow path section in a second direction, the first and second directions being different relative to each other. The airflow path also includes at least one electrically charged surface such that the airflow undergoes electrostatic precipitation as it traverses the airflow path. A method of separating particles in an airflow upstream of a detection chamber in an aspirating smoke detector is also disclosed.
    Type: Application
    Filed: March 3, 2011
    Publication date: August 1, 2013
    Applicant: Xtralis Techhnologies Ltd 2nd Floor
    Inventors: Kemal Ajay, Brian Alexander
  • Patent number: 8496734
    Abstract: A sorbent structure comprising a continuous activated carbon body in the form of a flow-through substrate; and an additive provided on the flow-through substrate, wherein the additive is capable of enhancing the sorption of CO2 on the sorbent structure. Methods of making the sorbent structure, its use for CO2 capture, and methods for regenerating the structure for further use.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: July 30, 2013
    Assignee: Corning Incorporated
    Inventors: Kishor Purushottam Gadkaree, Youchun Shi
  • Patent number: 8492733
    Abstract: A multi-sectional linear ionizing bar with at least four elements is disclosed. First, disclosed bars may include at least one ionization cell with at least one axis-defining linear ion emitter for establishing an ion cloud along the length thereof. Second, disclosed bars may include at least one reference electrode. Third, disclosed bars may include a manifold for receiving gas or air from a source and for delivering same past the linear emitter(s) such that substantially none of the gas/air flows into the ion cloud. Fourth, disclosed bars may include means for receiving the ionizing voltage and for delivering same to the linear emitter(s) to thereby establish the ion cloud. In this way, disclosed ionizing bars may transportions from the plasma region toward a charge neutralization target without inducing substantial vibration of the linear emitter and without substantial contaminants from the gas/air flow reaching the linear emitter.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: July 23, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: Aleksey Klochkov, Peter Gefter, Steven Bernard Heymann, Leslie W. Partridge, Greenberry Bedford Brown, Matthew T. Antonelli
  • Patent number: 8491703
    Abstract: A supply air device including supply air nozzles, through which incoming air is led into a mixing chamber and further into a room so that the supply air device induces a secondary air flow from the room. An electric particle filter and/or a cell gas filter, through which the circulating or secondary air flow is led.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: July 23, 2013
    Assignee: Valtion Teknillinen Tutkimuskeskus
    Inventors: Seppo Enbom, Matti Lehtimäki
  • Patent number: 8470081
    Abstract: One exemplary embodiment can be a process for separating particulate solids from a gas stream. The process can include regenerating a catalyst in a regenerator, separating particulate solids in first and second cyclone stages, passing the gas stream from the second cyclone stage to an external third stage separator, and passing the gas stream from the external third stage separator to a cyclone recirculator to obtain a clean gas stream.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: June 25, 2013
    Assignee: UOP LLC
    Inventors: Sathit Kulprathipanja, Paolo Palmas, Richard A. Johnson, II
  • Patent number: 8460433
    Abstract: Clean corona gas ionization by separating contaminant byproducts from corona generated ions includes establishing a non-ionized gas stream having a pressure and flowing in a downstream direction, establishing a plasma region of ions and contaminant byproducts in which the pressure is sufficiently lower than the pressure of the non-ionized gas stream to prevent at least a substantial portion of the byproducts from migrating into the non-ionized gas stream, and applying an electric field to the plasma region sufficient to induce at least a substantial portion of the ions to migrate into the non-ionized gas stream.
    Type: Grant
    Filed: April 14, 2012
    Date of Patent: June 11, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: Peter Gefter, Aleksey Klochkov, John E. Menear, Lyle Dwight Nelsen
  • Patent number: 8444754
    Abstract: An air moving apparatus includes an axial fan and an electrostatic device. The axial fan has a rotatable shaft defining a central axis of the axial fan, a plurality of blades secured to the shaft, and an air inlet opening. The electrostatic device is disposed immediately upstream of the air inlet opening of the axial fan, and includes a collector and an emitter. In one embodiment, the electrostatic device includes a cylindrical collector coupled to ground and has a central axis aligned with the central axis of the axial fan. The electrostatic device further includes a plurality of emitter wires coupled to a terminal of a direct current source and extending lengthwise within the cylindrical collector. During operation of the axial fan, the application of an electrical potential between an emitter and a collector causes ionic air movement radially outwardly away from a central axis of the axial fan.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: May 21, 2013
    Assignee: International Business Machines Corporation
    Inventors: Michael S. June, Chunjian Ni, Mark E. Steinke
  • Publication number: 20130118349
    Abstract: The embodiments described herein improve on the present electrostatic precipitator method of using parallel plates to collect particulates by using multiple parallel vanes set at operating parameters described below. By using vanes, the main entrained air is subdivided and directed to flow between vanes that induce resistance to flow allowing charged particles to collect on the vanes. The width of the vane is designed to be wide enough so the air flow rate at the ends of the vanes is less than 1 ft/s, allowing particles discharged from the plates to fall by gravity and in the direction of very low air flow, resulting in extremely low re-entrainment and efficient particle collection. Using vanes also allows for higher operating air velocities resulting in a smaller equipment foot print.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 16, 2013
    Inventor: John P. Dunn
  • Patent number: 8419816
    Abstract: Provided is a gas isolation valve which separates reactive materials, principally gases, contained in a high temperature reactor from the surrounding atmosphere. The valve is of modular construction with each module having a gas providing section and a gas removal section. Any number of modules can be provided in series. A central chamber, open at each end gives unimpeded access to the high temperature reactor. It is through the central chamber that the product of the reactor is removed and harvested. In the case of Ilas invention the product is carbon nanotubes.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: April 16, 2013
    Assignee: Q-Flo Ltd.
    Inventors: Martin Pick, Stephen Cash
  • Patent number: 8414687
    Abstract: A method for removing particulate matter from a particulate-bearing gas stream includes flowing a particulate-bearing gas stream at a first volumetric flow rate to a plurality of ESP units; producing electrically charged particulate matter; collecting electrically charged particulate matter on collection electrode plates; reducing the flow through at least one of the ESP units; sequentially increasing the flow through one or more remaining ESP units in an amount so as to maintain the sum of flow through all of the ESP units at the first volumetric flow rate; subjecting the collection electrode plates in the at least one ESP unit with reduced flow to forces which dislodge the particulate matter from the collection electrode plates; collecting the dislodged particulate matter in a particulate collection receptacle; and withdrawing a gas stream of reduced particulate matter contamination.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: April 9, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventor: Dong X. Li
  • Patent number: 8409328
    Abstract: 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: Grant
    Filed: March 18, 2010
    Date of Patent: April 2, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Jun Yamawaku, Junji Oikawa, Hiroyuki Nakayama
  • Patent number: 8398745
    Abstract: A substrate processing apparatus includes a processing chamber for accommodating therein a processing target substrate; a gas exhaust path through which a gas inside the processing chamber is exhausted; one or more exhaust pumps provided in the gas exhaust path; and a scrubber for collecting harmful components from an exhaust gas. The apparatus further includes an ionized gas supply unit for supplying to the gas exhaust path an ionized gas for neutralizing charged particles included in the exhaust gas flowing therethrough.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: March 19, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Jun Yamawaku, Junji Oikawa, Hiroyuki Nakayama
  • Patent number: 8398746
    Abstract: A small area electrostatic aerosol collector includes a collector housing, an inlet nozzle that extends from the housing and an exit port that provides an exit for air to flow back out of the housing. A pumping arrangement pulls air into the housing through the inlet nozzle. The sampled air is moved through ductwork such that particulates are collected on a substrate and the air is evacuated through the exit port after collection. The collector includes a charging device positioned within the ductwork to create an electric field defining a charging point that the air passes through between the inlet nozzle and the substrate. The substrate is held at a neutral or opposite charge relative to the electric field created by the charging device. Particulates are collected on the sample substrate by containing the aerosol in a small area and by forcing the aerosol to flow near the substrate.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: March 19, 2013
    Assignee: Battelle Memorial Institute
    Inventors: Rodney S. Black, Edgar Fogelman, Kevin T. Hommema
  • Patent number: 8398744
    Abstract: A method, apparatus and system for minimizing a quantity of particulate matter entrained within a gas stream is provided. A coarse filter removes at least a portion of particulate matter having a relatively-large particle size from the gas stream. An agglomerator agglomerates particulate matter having a relatively-small particle size remaining in the gas stream into particulate clusters after the portion of the particulate matter having the relatively-large particle size has been removed by the coarse filter. An injector introduces an agglomerating material into the gas stream before the gas stream enters the agglomerator. The agglomerating material promotes agglomeration of the particulate matter having the relatively-small particle size into the particulate clusters. And a second filter receives the gas stream and removes at least a portion of the particulate clusters entrained within the gas stream exiting the agglomerator.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: March 19, 2013
    Assignee: General Electric Company
    Inventors: Bradley Stephen Rogers, James Easel Roberts
  • Publication number: 20130047847
    Abstract: The invention relates to an electrostatic collection device (1) of particles in suspension in a gas environment by corona effect. The effect is created by a discharge electrode in the form of a wire (4) judiciously maintained at its two ends (40, 41), the maintaining means (7) downstream of the collecting chamber (2) extending inside at least one space delimited by a wall (9) transversal to the collecting wall (3) part of which (30) forms the collecting electrode, the transversal wall having a shape adapted to deflect the path of a liquid present in the gas and flowing on the collecting electrode and carried along up to said transversal wall such that it does not come into contact directly with the maintaining means (7).
    Type: Application
    Filed: August 28, 2012
    Publication date: February 28, 2013
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT
    Inventor: Jean-Maxime ROUX
  • Patent number: 8317901
    Abstract: The present disclosure generally relates to cyclonic separation or filtering of nanoparticles suspended in a gas. A plume of liquid droplets may be generated using an ultrasound or other generator. The gas may be mixed with the plume of liquid droplets, which may have received an electrostatic charge prior to mixing, to promote preferential adhesion of the nanoparticles to the liquid droplets. The gas with suspended nanoparticles and suspended liquid particles may flow through a cyclonic separator that spins rapidly, causing the cleaned gas to flow out of the filter while the liquid with adhered nanoparticles may be discharged, collected, and/or re-used in the plume generator. By causing nanoparticles to adhere to larger liquid particles, the filter may allow the filtering and collection of much smaller particles than current systems may filter under atmospheric pressure.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 27, 2012
    Assignee: Empire Technology Development LLC
    Inventor: Ezekiel Kruglick
  • Patent number: 8308846
    Abstract: Liquid and/or particle-shaped impurities are precipitated from a stream of gas, for example, from a stream of gas that originates from a crankcase of an internal combustion engine and is directed to the engine's intake side. The stream of gas is passed through a gas discharge section between two electrodes. The stream of gas is passed between an emission electrode which is formed by electrode tips and an opposing electrode at a distance therefrom. A direct voltage which exceeds the breakdown voltage is applied to the electrodes using a direct current high voltage source, and the current which occurs over the gas discharge section between the electrodes is limited. A stable low energy direct current plasma is formed in the space between the two electrodes. The impurities are electrically charged and attracted to the opposing electrode by means of electrical field forces.
    Type: Grant
    Filed: May 10, 2008
    Date of Patent: November 13, 2012
    Assignee: WOCO Industrietechnik GmbH
    Inventors: Marcel Op de Laak, Franz Knopf
  • Patent number: 8303697
    Abstract: A method for purifying polluted air having particle phase pollutants and gaseous phase pollutants is provided. The method comprising: separately purifying and treating particle phase and gaseous phase pollutants present in the air; providing a dust cleaning apparatus, a catalytic filter core and a valve for controlling an airflow path within an air purification apparatus; controlling the airflow path for the air to bypass the catalytic filter core in a way that: if the amount of particle phase pollutants is above a predetermined value, the valve is moved to the open position to enable the air to bypass the catalyst filtering core; if the amount of particle phase pollutants is less than a predetermined value, the valve is moved to the closed position to force the air to pass through the catalyst filtering core.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: November 6, 2012
    Assignee: Akos Advanced Technology Ltd.
    Inventors: Yiu Wai Chan, Sui Chun Law
  • Patent number: 8277541
    Abstract: A smoke removal apparatus, capable of operating in a confined space without ventilation of the apparatus to the atmosphere to provide removal of smoke from air to be treated. The apparatus includes one or more of the following filters: a mechanical filter; an electrostatic filter; and/or a chemical filter. The apparatus is arranged to collect smoke from a relatively higher position, pass smoke through the one or more filters/and expel treated air to a relatively lower position.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: October 2, 2012
    Assignee: Atmosphere Control International Limited
    Inventors: Brian Hunt, Peter Row, Alex Wheatley
  • Patent number: 8268058
    Abstract: 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: Grant
    Filed: November 16, 2009
    Date of Patent: September 18, 2012
    Inventors: Fu-Chi Wu, Steven Wu
  • Patent number: 8262781
    Abstract: A method is provided which can efficiently remove conidia and microbe or the like of a phytopathogen from air and does not cause generation of ozone originated from discharge or so, thereby preventing occurrence of a plant disease without damaging a plant. There are also provided a flying organism removing apparatus and a plant protecting apparatus which can adequately capture flyable organisms, such as spores of a phytopathogen and/or small vermin, by applying an electrostatic field to the flyable organisms. An electrostatic field generated by dielectric polarization is applied to flyable organisms.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: September 11, 2012
    Assignees: Kagome Co., Ltd., Kinki University, Osaka Prefectural Government
    Inventors: Hideyoshi Toyoda, Yoshinori Matsuda, Teruo Nonomura, Koji Kakutani, Shin-ichi Kusakari, Katsuhide Higashi
  • Patent number: 8246720
    Abstract: 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: Grant
    Filed: July 31, 2007
    Date of Patent: August 21, 2012
    Assignee: CFD Research Corporation
    Inventors: Kapil Pant, Shivshankar Sundaram, Yi Wang
  • Publication number: 20120192714
    Abstract: One exemplary embodiment can be a process for separating particulate solids from a gas stream. The process can include regenerating a catalyst in a regenerator, separating particulate solids in first and second cyclone stages, passing the gas stream from the second cyclone stage to an external third stage separator, and passing the gas stream from the external third stage separator to a cyclone recirculator to obtain a clean gas stream.
    Type: Application
    Filed: February 1, 2011
    Publication date: August 2, 2012
    Applicant: UOP, LLC
    Inventors: Sathit Kulprathipanja, Paolo Palmas, Richard A. Johnson, II
  • Patent number: 8211208
    Abstract: A method for purifying polluted air having particle phase pollutants and gaseous phase pollutants is provided. The method comprising: separately purifying and treating particle phase and gaseous phase pollutants present in the air; providing a dust cleaning apparatus, a catalytic filter core and a valve for controlling an airflow path within an air purification apparatus; controlling the airflow path for the air to bypass the catalytic filter core in a way that: if the amount of particle phase pollutants is above a predetermined value, the valve is moved to the open position to enable the air to bypass the catalyst filtering core; if the amount of particle phase pollutants is less than a predetermined value, the valve is moved to the closed position to force the air to pass through the catalyst filtering core.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: July 3, 2012
    Assignee: Akos Advanced Technology Ltd.
    Inventors: Yiu Wai Chan, Sui Chun Law