Relatively Movable Pneumatic Nozzle (e.g., Scanning Nozzle) Patents (Class 55/294)
  • Patent number: 11092065
    Abstract: An air management assembly for a work machine, the air management assembly having a cooling orifice defined in a panel, a cooling fan generating a cooling airflow through the cooling orifice to a cooling package, at least one fixed screen positioned along an intake orifice, and a first baffle positioned at least partially between the cooling orifice and the intake orifice. Wherein, the first baffle directs the cooling airflow partially across the fixed screen to clear the fixed screen of debris.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: August 17, 2021
    Assignee: DEERE & COMPANY
    Inventors: Alan D. Sheidler, Garrick W. Herbst, Todd E. Van Hal
  • Patent number: 11077957
    Abstract: An air intake system (AIS) has a plenum and an inlet barrier filter associated with the plenum, through which air can selectively enter the plenum. The AIS also has an inlet duct associated with the plenum, through which air can selectively enter the plenum. The AIS also has a bypass door associated with the inlet duct, the bypass door being configured to selectively change an amount of air allowed to pass through the inlet duct. The AIS also has a filter airflow change device configured to change an amount of airflow allowed through the inlet barrier filter.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: August 3, 2021
    Assignee: Textron Innovations Inc.
    Inventors: Thomas Dewey Parsons, David Haynes, David L. Miller, Bradley Robert Henson
  • Patent number: 10905982
    Abstract: A filter arrangement includes: a chamber including a chamber inlet for unfiltered liquid, a chamber outlet for filtered liquid and a wall arranged to keep the unfiltered liquid and the filtered liquid separated, a filter element having a longitudinal extension arranged inside of the chamber, wherein the filter element includes a semi-permeable filtration wall including a folded filter arranged in a zig-zag configuration between an inner perforated cylinder and an outer perforated cylinder and an internally located back-washing arrangement.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: February 2, 2021
    Assignee: MOSSHYDRO AS
    Inventors: Kristian Holmen, Svein Holmen
  • Patent number: 10751764
    Abstract: A suction nozzle assembly, comprising a tube coupled to a pressure sink at a distal side thereof, a nozzle, a resilient element which couples said nozzle to a proximal side of said tube and a deformable housing which bridges a gap between said proximal side of said tube and said nozzle. Optionally, a pressure equalizer, for example, a through aperture, is formed in said nozzle.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: August 25, 2020
    Assignee: FILTER SAFE LTD.
    Inventor: Etai Dagan
  • Patent number: 10610876
    Abstract: A method for operating a surface treatment plant, resulting overspray in a coating booth is taken up by an air flow. The air flow loaded with overspray is conveyed as exhaust air flow to at least one separation unit in which overspray is separated out. In a supply region upstream of the at least one separation unit and/or in an internal space of the at least one separation unit, a filter aid having a separation aggregate state is added to the exhaust air flow and forms, with the overspray, a separation mixture which is separated in or at the at least one separation unit. The filter aid used is solid or liquid in the separation aggregate state. In the at least one separation unit, conditions are established in which the filter aid transitions from the separation aggregate state into a gaseous aggregate state such that the gaseous filter air can separate from the separation mixture.
    Type: Grant
    Filed: January 9, 2016
    Date of Patent: April 7, 2020
    Assignee: EISENMANN SE
    Inventors: Georg Froehlich, Juergen Roeckle
  • Patent number: 10112140
    Abstract: A modular portable dusty air cleaner comprises a removable bin, a dirty gas distributor, an aperture plate, a plurality of tubular filters, a roof, a clean-gas chamber, a dust collection chamber, and a pulse-jet assembly. The dirty gas distributor is positioned to distribute dirty gas into the dust collection chamber from a periphery of the plurality of filters. The aperture plate forms at least a partial ceiling for the bin. The plurality of tubular filters hangs into the bin from the apertures of the plate, one filter per aperture. The roof is positioned above the aperture plate. The clean-gas chamber is defined between the plate and the roof. The pulse-jet assembly is positioned at least partly in the clean-gas chamber. The pulse-jet assembly includes a plurality of nozzles for pulsing jets of gas down the plurality of filters, one nozzle per filter to dislodge accumulated dust into the bottom of the dust collection chamber.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: October 30, 2018
    Inventor: Michael W. Seitz
  • Patent number: 9975074
    Abstract: A filtering device, particularly for filtering air contaminated by oily mists, vapors, aerosols and the like, comprising a cylindrical containment enclosure that is provided with a closure element that is provided with an air intake, a filtering assembly being accommodated inside the containment enclosure, the device further comprising a conveyance spiral that is arranged axially inside the containment enclosure and in contact with an inner surface of the enclosure.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: May 22, 2018
    Assignee: LOSMA S.P.A.
    Inventor: Carlo Pola
  • Patent number: 9631533
    Abstract: A method for removal of SOx and NOx from an exhaust gas that contains SOx, NOx, soot and water vapor, the exhaust gas originating from a combustion of a fuel where the combustion takes place in an internal combustion engine. The exhaust gas is passed through at least one catalytic reactor having an oxidation catalyst, in which catalytic reactor at least SO2 is converted to SO3 and NO is converted to NO2. Thereafter the exhaust gas is passed through a condenser and cooled to a temperature which is below the dew point temperature of the water in the condenser such that SO3, NO2 and water is condensed and SO3 and NO2 is dissolved into the condensed water and removed from the exhaust gas.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: April 25, 2017
    Assignee: Alfa Laval Aalborg A/S
    Inventors: Mohan Menon, Dag Ovrebo
  • Patent number: 9605628
    Abstract: A filter cleaning apparatus preferably comprises a filter holding assembly, a vibration assembly, and a diffusion delivery module. The filter holding assembly may secure the filter within a cleaning chamber. The vibration assembly may be operatively coupled to the filter holding assembly and may be configured to vibrate the filter. The diffusion delivery module may reciprocate along a longitudinal axis of the filter and deliver cleaning air radially and substantially perpendicular to an interior surface of the filter. The cleaning air may be pulsated to enhance the cleaning effect.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: March 28, 2017
    Inventor: Benjamin Lee Woodward
  • Patent number: 9186611
    Abstract: A baghouse cleaning system comprises an elongated air accumulator configured to retain pressurized air and extend over a row of filter bags. An elongated air tube extends along the air accumulator and venturis extend from the air tube. The venturis blow pressurized air streams down into the filter bags to remove particles attached to an outside filter bag surface. A valve fluidly couples the air accumulator to the air tube and an actuator is configured to move the cleaning arm linearly over different rows of the filter bags. A sensor may determine when the filter bags need to be cleaned based on a measured air pressure. A controller can actuate the cleaning arm to clean the filter bags based on preprogrammed cleaning patterns, the amount of measured air pressure, and/or other detected environmental conditions.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: November 17, 2015
    Assignee: CSL INDUSTRIAL SYSTEMS
    Inventor: Richard Daniel Boatwright, Jr.
  • Patent number: 8864913
    Abstract: A filter cleaning system for cleaning a filter element is provided. The filter cleaning system includes a set of pulse nozzles and a compressed air supply, which rotate together during a cleaning cycle to release pulse blasts at predetermined time intervals to clean the filter element.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: October 21, 2014
    Assignee: United Air Specialists, Inc.
    Inventors: Travis Haynam, Matt Stehlin, Cathy Haglund
  • Publication number: 20140260992
    Abstract: A filter for removing a particulate material includes a collection system provided in an air stream to collect the particulate material, the collection system including a filter frame having a plurality of filter panels, and a cleaning system provided to clean the collected particulate material from the plurality of filter panels, the cleaning system including a rotatable cleaner arm having a plurality of nozzles.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 18, 2014
    Applicant: CAMBRIDGE INTERNATIONAL INC.
    Inventors: Melody Elizabeth FERNAAYS, Maxwell Lawrence KEELING, Matthew Charles O'CONNELL
  • Patent number: 8691001
    Abstract: A baghouse cleaning system comprises an elongated air accumulator configured to retain pressurized air and extend over a row of filter bags. An elongated air tube extends along the air accumulator and venturis extend from the air tube. The venturis blow pressurized air streams down into the filter bags to remove particles attached to an outside filter bag surface. A valve fluidly couples the air accumulator to the air tube and an actuator is configured to move the cleaning arm linearly over different rows of the filter bags. A sensor may determine when the filter bags need to be cleaned based on a measured air pressure. A controller can actuate the cleaning arm to clean the filter bags based on preprogrammed cleaning patterns, the amount of measured air pressure, and/or other detected environmental conditions.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: April 8, 2014
    Assignee: CSL Industrial Systems
    Inventor: Richard Daniel Boatwright, Jr.
  • Publication number: 20130327213
    Abstract: A baghouse cleaning system comprises an elongated air accumulator configured to retain pressurized air and extend over a row of filter bags. An elongated air tube extends along the air accumulator and venturis extend from the air tube. The venturis blow pressurized air streams down into the filter bags to remove particles attached to an outside filter bag surface. A valve fluidly couples the air accumulator to the air tube and an actuator is configured to move the cleaning arm linearly over different rows of the filter bags. A sensor may determine when the filter bags need to be cleaned based on a measured air pressure. A controller can actuate the cleaning arm to clean the filter bags based on preprogrammed cleaning patterns, the amount of measured air pressure, and/or other detected environmental conditions.
    Type: Application
    Filed: June 12, 2012
    Publication date: December 12, 2013
    Applicant: CSL Industrial Systems
    Inventor: Richard Daniel Boatwright Jr., JR.
  • Patent number: 8596396
    Abstract: An agricultural work vehicle includes an enclosed engine compartment within the vehicle body, with the engine compartment having a top cover that extends generally between opposite sides of the vehicle body. A vertically oriented air inlet is defined in the vehicle body for intake of air into the engine compartment. An intake housing is configured over the air inlet and includes an inlet opening and an outlet opening in communication with the engine compartment air inlet. The inlet opening extends above the top cover and is oriented relative to a vertical plane such that an angled air flow path is defined between the inlet opening and the outlet opening wherein air is drawn from an area above the top cover of the engine compartment and is directed into the air inlet.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: December 3, 2013
    Assignee: CNH America LLC
    Inventor: Jonathan Eugene Ricketts
  • Patent number: 8528231
    Abstract: A dryer is provided. The dryer may include a main body having an inner space formed therein, a support body arranged in the main body so as to form a frame of the main body, a flexible drum rotatably installed on the support body so as to have a non-circular cross-section as it is rotated, and rotation guides arranged between the support body and the flexible drum so as to guide rotation of the flexible drum. A distance from a center of rotation of an inscribed circle contacting the inner circumferential surface of the flexible drum to one random point on the inner circumferential surface of the flexible drum is greater than a distance from the center of rotation of the inscribed circle to another point on the inscribed circle such that the drum maintains a non-circular cross section.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: September 10, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sungmin Kim, Jongseok Kim, Daeyun Park, Sogkie Hong
  • Patent number: 8499409
    Abstract: A cleaning device (1) for hose filters comprising a cleaning head (5) having at least one nozzle (11) rotating about a longitudinal axis (L), is characterized in that the cleaning head (5) comprises a fixed jacket (15) having a smooth outer surface which surrounds the at least one rotating nozzle (11) at a distance and in which a series of through holes (17) are formed, said holes being distributed over the circumference of the jacket (15) and being arranged with respect to each nozzle (11) such that a jet emerging from each nozzle (11) during operation can pass through a through hole (17) at least intermittently.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: August 6, 2013
    Inventor: Christian Reining
  • Patent number: 8491684
    Abstract: Z-filters capable of cleaning particulate matter from airflow streams in dust collectors, including reverse flow, reverse air, and reverse pulse systems.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: July 23, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas Donald Raether, Brian Zauner, Mark Belcher, Gabriel Safarian
  • Patent number: 8277526
    Abstract: A filter dust collector is disclosed. The filter dust collector includes a housing, filter cloths fixed to an inside of the housing, a filter body part disposed inside the housing and having filter insertion holes, a compressed air supply part coupled to peripheries of the filter insertion holes, a transfer part connected to the filter body part to move the filter body part and the compressed air supply part in a longitudinal direction, a duct suction port formed on a side surface of the housing to suck air to be filtered, a supply port formed on a side surface of the housing to discharge filtered air, and a dust discharge port formed on a side surface of the housing, wherein the filter cloths are positioned at the filter insertion holes, the filter body part and the compressed air supply part move in the longitudinal direction, and the compressed air supply part sprays compressed air to the filter cloths.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: October 2, 2012
    Inventor: Yong-Lae Cho
  • Patent number: 8236076
    Abstract: An apparatus for cleaning an air filter includes a body, a closed chamber formed within the body, a fluid dispersing member having a portion thereof mounted for rotation within the body and passing through the chamber, a plurality of orifices formed through the wall of the fluid dispersing member and an arrangement for rotating the fluid dispersing member. The arrangement either includes a combination of nozzles secured to the fluid dispersing member and positioned within the chamber and an irregular inner wall surface of the chamber capable of providing resistance to a fluid flow discharged into the chamber or fins disposed on the fluid dispersing member and a passageway through the body for directing fluid under pressure onto the fins. Fluid supplied under pressure to the fluid dispersing member exits through the plurality of orifices toward an inner surface of a air filter filtering medium causing contaminants to exit therefrom.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: August 7, 2012
    Inventor: Dennis Grieve
  • Patent number: 8206492
    Abstract: An apparatus for cleaning diesel particulate filters. First and second nozzle members direct flows of compressed air into the axially-extending filter cells from both ends of the filter, the nozzle members being offset so as to avoid blowing directly towards one another. The flows from the nozzles impinge only one or a few cells at a time. The nozzle members are moved over the entirety of the first and second end faces of the filter. The nozzles may be translated on arms while the filter is rotated simultaneously on a turntable or rollers. The filter and nozzles are housed within a cabinet having one or more windows, which enable an operator to view the cleaning process and also to identify filters having damaged media. The dislodged particulate material is withdrawn from the cabinet by an exhaust duct system.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: June 26, 2012
    Inventor: Cole L. Waldo
  • Patent number: 8110014
    Abstract: An air distribution system for providing rinse air to a gas cleaner is provided, which includes a filter housing, a holding plate wherein holes are arranged in concentric circles for holding filter bags or filter elements in the filter housing, filter bags or filter elements, rinse air supply means, and an air distribution device for distributing rinse air. In the system, a tube (6) is arranged rotatable in a rotatable distributor body (109) in the air distribution device (101), which distributor body (109) are connected to tubes (7), and which distributor body (109) includes rotating means (4, 5, 104), and when the distributor body (109) is rotated, tubes (7) are moved from a position above one hole (110) in the holding plate (111) to another hole (110) in the holding plate.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: February 7, 2012
    Assignee: Simtek A/S
    Inventor: Arne Gronbaek Jensen
  • Patent number: 8097050
    Abstract: A vacuum apparatus rotatable about an axis through a filter screen for continually removing contaminants, which utilizes an asymmetrical vacuum arm supported by a center hub, and large longitudinally extending asymmetrical vacuum orifices in portions of the arm on opposite sides of the hub, operable for removing large elements of debris, trash and the like from the screen. One of the arm portions cleans a radial outer region of the screen, and the other cleans an inner region, the arm portions being generally even in mass for balance. A knife disposed on the screen cleans and cooperates with a brush on the arm for breaking up larger elements of trash. The arm is also manually removable via a snap together vacuum seal joint, for service and cleaning.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: January 17, 2012
    Assignee: CNH America LLC
    Inventors: Brian K. Johnson, Panos Tamamidis, David A. Scott
  • Patent number: 8070857
    Abstract: A particulate removal tool and method are provided to remove the particulates such as ash and soot from a particulate filter. The particulate filter can be placed on a filter holder in a housing of the tool where a quick burst of air can be provided to clean the particulate filter. The air then can travel to a container which includes additional filter to filter the air. A vacuum can be used to remove additional particulates from the container.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: December 6, 2011
    Assignee: SPX Corporation
    Inventors: Jim Jirele, Stan Norland, William Clayton Brown, Jamie Erin Stringfield, David Painter, Mark Gasper, Eric Vinyard, James Sarnes, Jade Katinas, Jason Scott Cooper, Cheryl Lynn Sellers, James Josh Driscoll
  • Patent number: 8029583
    Abstract: A cleaning apparatus for a gas filter may include a movable support, a plurality of orifices, and a control system. The orifices may be arranged on the support for selective discharge of cleaning gas toward corresponding ones of filter openings disposed in a segment of a partition in the gas filter when the support is proximate that segment. The orifices may be grouped into at least first and second groups of orifices that may be fluidly connected to first and second valves configured for selective delivery of cleaning gas The control system may be configured to activate the first valve to cause a discharge of cleaning gas from the first group of orifices when the support is proximate a first segment and to activate the second valve to cause a discharge of cleaning gas from the second group of orifices when the support is proximate a second segment.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: October 4, 2011
    Assignee: Western Pneumatics, Inc.
    Inventors: Brock E. Ferguson, Rick D. Palahniuk
  • Patent number: 7998245
    Abstract: A method and apparatus are disclosed for unblocking a perforated rotary filter screen. In the invention, at least one jet of high pressure air is directed at a surface of the filter screen as the filter screen is rotated and the or each jet of air is moved in a direction transverse to the direction of movement of the perforations in the screen in order to cause the or each air jet to trace a spiral or helical path over the surface of the screen.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: August 16, 2011
    Assignee: CNH America LLC
    Inventors: Lode A. Demonie, Yvan C. C. Vandergucht
  • Patent number: 7981175
    Abstract: A self-cleaning blow-off for a rotary air screen, includes a blow-off channel including an inlet disposed for receiving a flow of air from a pressurized air source, and a movable blow-off channel section configured and supported to be movable between an operational position disposed adjacent to a portion of the air screen for directing the flow of air for blowing debris and dirt from the screen, and a cleaning position disposed away from the screen such that accumulated debris and dirt in the blow-off section will be released. And, an actuator is connected to and controllably operable for moving the movable blow-off section between the operating position and the cleaning position. The actuator can be controlled to move the movable blow-off section to the cleaning position periodically, as desired, or responsive to an input.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: July 19, 2011
    Assignee: CNH America LLC
    Inventor: David S. D'hondt
  • Publication number: 20110138756
    Abstract: The invention relates to a gas filter system having a plurality of tubes being suspended at one end at a carrier plate in a filter chamber that is flowed through by gas, said tubes having a lateral surface made from a filter material, said tubes being flowed through radially from the outside to the inside by a gas to be filtered, and guiding the gas filtered in this manner to a collecting space formed above the carrier plate, wherein openings formed by the tube ends for accommodating the carrier plate are disposed in a circular surface of the carrier plate.
    Type: Application
    Filed: June 20, 2009
    Publication date: June 16, 2011
    Applicant: HAMON ENVIROSERV GMBH
    Inventors: Theo Risse, Meinrad Wilhelm Hubertus Wolff
  • Publication number: 20110011259
    Abstract: A method and apparatus are disclosed for unblocking a perforated rotary filter screen. In the invention, at least one jet of high pressure air is directed at a surface of the filter screen as the filter screen is rotated and the or each jet of air is moved in a direction transverse to the direction of movement of the perforations in the screen in order to cause the or each air jet to trace a spiral or helical path over the surface of the screen.
    Type: Application
    Filed: July 16, 2009
    Publication date: January 20, 2011
    Inventors: Lode A. Demonie, Yvan C.C. Vandergucht
  • Publication number: 20110005176
    Abstract: An apparatus for cleaning an air filter includes a body, a closed chamber formed within the body, a fluid dispersing member having a portion thereof mounted for rotation within the body and passing through the chamber, a plurality of orifices formed through the wall of the fluid dispersing member and an arrangement for rotating the fluid dispersing member. The arrangement either includes a combination of nozzles secured to the fluid dispersing member and positioned within the chamber and an irregular inner wall surface of the chamber capable of providing resistance to a fluid flow discharged into the chamber or fins disposed on the fluid dispersing member and a passageway through the body for directing fluid under pressure onto the fins. Fluid supplied under pressure to the fluid dispersing member exits through the plurality of orifices toward an inner surface of a air filter filtering medium causing contaminants to exit therefrom.
    Type: Application
    Filed: September 17, 2010
    Publication date: January 13, 2011
    Inventor: DENNIS GRIEVE
  • Publication number: 20100263337
    Abstract: Z-filters capable of cleaning particulate matter from airflow streams in dust collectors, including reverse flow, reverse air, and reverse pulse systems.
    Type: Application
    Filed: February 25, 2010
    Publication date: October 21, 2010
    Applicant: DONALDSON COMPANY, INC
    Inventors: THOMAS DONALD RAETHER, BRIAN ZAUNER, MARK BELCHER, GABRIEL SAFARIAN
  • Patent number: 7815701
    Abstract: A portable apparatus for cleaning an elongated air filter includes housing, a generally closed chamber which is formed within the housing and which has an irregular inner wall surface capable of providing resistance to a fluid flow discharged into the chamber and a hollow shaft mounted for rotation within the housing and extending through the chamber. One end of the shaft is connected to a source of fluid under pressure. A plurality of nozzles are secured to the elongated shaft and positioned within the chamber and a plurality of orifices are radially formed through a wall of the hollow shaft. Fluid which is supplied under pressure to the shaft exits through the plurality of jets forming the fluid flow that causes rotation of the shaft and exits the plurality of orifices toward an inner surface of a filtering medium of such air filter causing contaminants to exit such air filtering medium.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: October 19, 2010
    Inventor: Dennis R. Grieve
  • Patent number: 7758666
    Abstract: A filter element and related method for separating particles from a particle laden unfiltered gas flow and a method for manufacturing such a filter element, wherein the filter element includes a first filter wall having a plurality of first through-flow openings for entry of contaminated unfiltered gas; a second filter wall disposed downstream of the first filter wall in the flow direction, and having a plurality of second through-flow openings for exit of clean gas; and an intermediate flow space disposed between the first and second filter walls, wherein the second through-flow openings are arranged in a displaced relationship with the first through-flow openings in the flow direction; the second filter wall has at least one impingement wall region arranged so that particles passing through the first through-flow openings at least partially impinge thereon; and at least one of the first and second filter walls has folds which extend alternately inward and outward relative to the intermediate flow space and
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: July 20, 2010
    Assignee: Big Dutchman International GmbH
    Inventor: Bernd Meerpohl
  • Publication number: 20100132153
    Abstract: A cleanable filter system includes a filter housing having an inlet for dust-laden gas and an outer annular gap volume disposed about an inner volume. The inner volume and the outer annular gap volume extend axisymmetrically about a bisecting line and are separated from one another by at least one gas-permeable wall. A submicron particulate filter is disposed in the inner volume. A discharge pipe is sealingly disposed in the inner volume axisymmetrically about the bisecting line. The discharge pipe includes a peripheral cylindrical surface that is gas-permeable and covered by the submicron particulate filter. A purge-gas conduit is disposed in the discharge pipe and configured to be rotationally driven about the bisecting line. The purge-gas conduit includes at least one radially outwardly directed nozzle disposed in a region of the submicron particulate filter.
    Type: Application
    Filed: September 28, 2007
    Publication date: June 3, 2010
    Applicant: Forschungszentrum Karlsruhe GmbH
    Inventors: Hans Leibold, Ingo Muellner
  • Patent number: 7654222
    Abstract: A fluidized bed apparatus includes a fluidizing container, a porous plate, a lower spray nozzle, a bag filter, an upper spray nozzle, a backwash nozzle, and a backwash nozzle elevator. The fluidizing container is formed in an inverted truncated conical cylindrical shape. The porous plate is provided so as to block a lower opening of the fluidizing container. The lower spray nozzle jets out air into the fluidizing container via the porous plate. The bag filter is provided at an upper opening of the fluidizing container. The upper spray nozzle sprays spray liquid downward. The backwash nozzle sweeps away powder particulates adhered to the bag filter by jetting out air from the outside of the bag filter toward the inside and is moved up and down by the backwash nozzle elevator. The fluidizing container may be vibrated by a vibrator.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: February 2, 2010
    Assignee: Fuji Paudal Company Limited
    Inventors: Yoshifumi Osako, Naochika Asai, Takashi Ueno
  • Publication number: 20090272082
    Abstract: A particulate filtration device comprising filter media having upstream and downstream surfaces, a gas-moving device for moving gas through the filter media from the upstream surface toward the downstream surface, and a cleaning assembly including a blow pipe having a plurality of cleaning nozzles for directing a flow of cleaning gas toward the filter media. A first one of the cleaning nozzles comprises a structural characteristic (e.g., throat size, exit angle, exit size) that is different than a second one of the cleaning nozzles. In one embodiment, the filter media comprises a filter bag corresponding with each nozzle, and both the first one and the second one of the cleaning nozzles are spaced substantially the same distance from the corresponding filter bag. The cleaning assembly can also include a plurality of blow pipes (e.g.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 5, 2009
    Applicant: VENTUREDYNE, LTD.
    Inventors: Brian Nahey, Glenn W. Bitner, Michael T. Gerardi
  • Patent number: 7608138
    Abstract: Provided is an apparatus 1 for measuring pressure loss in a filter 2, which apparatus includes filter holding means 3; fluid passing means; flow rate measuring means; pressure loss measuring means; and a flow path 6 which connects the four means such that a fluid can pass between the means. The apparatus further includes flow rate regulating means having a mainstream path 7; a tributary path 8 which is branched from the mainstream path 7 and communicates with the outside; and one or more flow path opening/closing members 9 capable of, in conjunction with the level of the fluid flow rate as measured through the flow rate measuring means, opening or closing the mainstream path 7 or the tributary path 8 such that the flow path opening ratio of each of the paths varies continuously or intermittently. The apparatus achieves reliable and convenient measurement of pressure loss with the flow rate of the fluid which passes through the filter 2 being maintained at a constant level by the flow rate regulating means.
    Type: Grant
    Filed: November 25, 2004
    Date of Patent: October 27, 2009
    Assignee: NGK Insulators, Inc.
    Inventors: Satoshi Sakashita, Mitsuo Takahashi
  • Publication number: 20090217630
    Abstract: A particulate filtration device having a cleaning assembly including the cleaning nozzle that accelerates gas toward the downstream surface of the filter media. The cleaning nozzle comprises an inlet portion defining a converging inlet path, a throat portion defining a narrowest portion of the nozzle, and an outlet portion defining a diverging path and ending at an exit edge. The inlet portion, throat portion, and outlet portion collectively create an inner surface of the nozzle. The nozzle defines a centerline and an exit half angle relative to the centerline, and the exit half angle is about ten degrees. The nozzle has a throat area at the throat portion and an exit area at the exit edge. A ratio of the exit area to the throat area is about 1.4. A portion of the inlet portion adjacent the throat portion has a throat inlet radius, and a portion of the outlet portion adjacent the throat portion has a throat outlet radius. The throat outlet radius is larger than the throat inlet radius.
    Type: Application
    Filed: February 29, 2008
    Publication date: September 3, 2009
    Applicant: VENTUREDYNE, LTD.
    Inventor: Glenn W. Bitner
  • Patent number: 7563295
    Abstract: A filter including a filter housing with an essentially horizontal partition wall that divides the filter housing into a clean-air chamber and a dust chamber. The partition wall is provided with a number of apertures in which a number of filter bags are provided that are secured to the partition wall and extend down into the dust chamber. The filter is provided with an inlet portion in open communication with the dust chamber in a level that is above a lowermost end of the filter bags, wherein the inlet portion is configured for introducing a dust-containing flow of air into the dust chamber, from there it can be sucked through the filter bags and up into the clean-air chamber, from where the filtered air is discharged through a clean air outlet. A number of diffuser elements are arranged in the inlet portion outside the filter housing.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: July 21, 2009
    Assignee: Simatek A/S
    Inventor: Christian Andersen
  • Publication number: 20090151572
    Abstract: A cleaning apparatus for a gas filter may include a movable support, a plurality of orifices, and a control system. The orifices may be arranged on the support for selective discharge of cleaning gas toward corresponding ones of filter openings disposed in a segment of a partition in the gas filter when the support is proximate that segment. The orifices may be grouped into at least first and second groups of orifices that may be fluidly connected to first and second valves configured for selective delivery of cleaning gas The control system may be configured to activate the first valve to cause a discharge of cleaning gas from the first group of orifices when the support is proximate a first segment and to activate the second valve to cause a discharge of cleaning gas from the second group of orifices when the support is proximate a second segment.
    Type: Application
    Filed: March 31, 2008
    Publication date: June 18, 2009
    Applicant: Western Pneumatics, Inc.
    Inventors: Brock E. Ferguson, Rick D. Palahniuk
  • Patent number: 7534278
    Abstract: A granulator device (101) for the treatment of powdered products comprises a closed container (102) forming a chamber (103) for treatment of the products, filter elements (104, 105) projecting into the treatment chamber (103), the filter elements comprising a multi-layer filtering wall (105) through which a fluid current can pass, and powder removing parts (106; 107, 108, 109, 110) designed to diffuse at least one service fluid directed towards at least the filtering wall (105); the powder removing parts (106; 107, 108, 109, 110) having at least first diffuser nozzles (107) and at least second diffuser nozzles (108) to diffuse the service fluid so as to free the filtering wall (105) of the powders trapped in it; there also being parts (140, 142, 147) for supporting and driving the filter elements (104, 105) which can change the angle of the filter elements (104, 105) from a first operating position, in which at least the first nozzles (107) act on the filtering wall (105), to a second operating position in wh
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: May 19, 2009
    Assignee: I.M.A. Industria Macchine Automatiche S.p.A.
    Inventors: Salvatore Fabrizio Consoli, Andrea Nora, Roberto Trebbi
  • Publication number: 20090107337
    Abstract: An inlet air filtration system includes a module configured to receive a gas stream and a plurality of filters supported by the module and configured to direct the gas stream. Each of the plurality of filters is configured to capture particulate matter contained in the gas stream. The system further includes a cleaning assembly movable amongst the filters. The cleaning assembly includes a blow pipe configured to receive a flow of gas, a blow nozzle, and a valve connected to the blow nozzle to blow the flow of gas across the filters to release the captured particulate matter. A method of cleaning an inlet air filtration system includes moving a cleaning assembly amongst the filters to clean the filters.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Inventor: Huong Van Vu
  • Patent number: 7517376
    Abstract: An air supply system and valve is disclosed which provides a reverse pulse of air for cleaning a filter element located in a filter house. A valve is also disclosed for use in the air supply system. The system includes a pressure vessel adapted to contain a volume of compressed air to be used for supplying the reverse pulse, the pressure vessel having a wall with at least one outlet aperture therein. The valve is mounted to the wall around the aperture to control the flow of air from the pressure vessel, the valve means comprising a valve body having an inlet, an outlet and a flow passage connecting the inlet and outlet, the inlet, the outlet and the flow passage generally extending axially through the valve body, a valve seat surrounding the flow passage, and a valve closure member movable towards and away from the valve seat into closed and open positions to thereby close or open the flow passage, and operating means for moving the valve closure member between the closed and open positions.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: April 14, 2009
    Assignee: Goyen Controls Co. Pty. Ltd.
    Inventor: Andrew John McCausland
  • Patent number: 7507270
    Abstract: A working vehicle, such as an agricultural combine, includes a vehicle body and an internal combustion engine carried by the vehicle body. The internal combustion engine includes a heat exchanger. An air scoop has an inlet positioned near a top of the vehicle body and facing in an upward direction, and an outlet positioned in association with the heat exchanger.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: March 24, 2009
    Assignee: Deere & Company
    Inventors: Brian Joseph Maas, Alan David Sheidler, Robert Vincent Shannon, Jr., Yong Ho Park, Mark Michael Chaney, Gary Stone Keys, II
  • Publication number: 20090056288
    Abstract: An apparatus for pneumatic cleaning of diesel particulate filters (DPF). First and second nozzle members direct flows of compressed air into the axially-extending filter cells from both ends of the filter, the nozzle members generally being offset so as to avoid blowing directly towards one another. The flows form the nozzles impinge only relatively small areas of the end faces of the filter media, e.g., only one or a few cells at a time. The nozzle members are moved over substantially the entirety of the first and second end faces, so that as cleaning progresses compressed air is directed into substantially all of the filter cells from opposite directions. The nozzles may be translated on reciprocated arms while the filter is rotated simultaneously on a turntable or rollers, so that the nozzles sweep over the whole surface of each end; other mechanisms, such as various combinations of gears or pistons, may be used for relative movement between the nozzles and filters.
    Type: Application
    Filed: April 4, 2008
    Publication date: March 5, 2009
    Inventor: Cole L. Waldo
  • Patent number: 7494521
    Abstract: A trigger mechanism for a dust filter pulse cleaning system includes a trigger frame, a trigger valve assembly including a reciprocating valve member having a valve head resiliently urged toward a valve seat and a striker head at an opposite end, a trigger arm pivotally connected to the trigger frame and including a cam follower, a twin lobed trigger cam journaled on the trigger frame and engaging the cam follower, and a pinion gear joined to the trigger cam and adapted for engagement with a fixed spur gear mounted coaxially with a rotary pulse cleaning air distribution arm extending from a rotary air tank. The trigger mechanism is mounted on the air tank and rotates therewith. An air release conduit is connected to the trigger valve and causes the opening of a main diaphragm valve to release air pulses from the air tank when pressure is released from the release line. Compressed air within the release line also acts to urge the valve head against the valve seat.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: February 24, 2009
    Inventors: Michael D. Althouse, Richard Newbolt
  • Publication number: 20090000471
    Abstract: According to an exemplary embodiment of the present disclosure, a system for removing matter from a filtering device of a work machine includes a gas pressurization assembly. An element of the gas pressurization assembly is removably attachable to a first orifice of the filtering device without removing the filtering device from a work machine to which the filtering device is connected. The system also includes a heat source fluidly connected to the gas pressurization assembly.
    Type: Application
    Filed: July 29, 2008
    Publication date: January 1, 2009
    Inventors: Cheryl Lynn Sellers, David Thaler, Mark T. Grimm, Jeremy Trethewey, Natalie Noel Vanderspiegel, Richard A. Crandell, Dong Fel, Roger A. Hudson, Mark Alan Gasper, Herbert DaCosta, Eric Charles Fluga, Hemant Prasad Malhampatti, Bruce Frazier, Matthew Fletcher
  • Patent number: 7462222
    Abstract: According to an exemplary embodiment of the present disclosure, a system for removing matter from a filtering device includes a gas pressurization assembly. An element of the assembly is removably attachable to a first orifice of the filtering device. The system also includes a vacuum source fluidly connected to a second orifice of the filtering device.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: December 9, 2008
    Assignee: Caterpillar Inc.
    Inventors: Cheryl L. Sellers, Daniel S. Nordyke, Richard A. Crandell, Gregory Tomlins, Dong Fei, Alexander Panov, William H. Lane, Craig F. Habeger
  • Patent number: 7422626
    Abstract: A method of declogging at least one filter of a plant for manufacturing uranium oxide from uranium hexafluoride, including separating, from the wall of the filter, uranium oxyfluoride particles deposited, by a stream of inert gas such as nitrogen, injected into the filter, in a counter-currentwise direction to the flow of hydrofluoric acid.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: September 9, 2008
    Assignee: Societe Franco-Belge de Fabrication de Combustible - FBFC
    Inventor: André Feugier
  • Patent number: 7418997
    Abstract: A radiator assembly includes a finned radiator core and a debris removing apparatus having a compressed air inlet and at least one compressed air outlet configured to direct compressed air through the radiator core. A work machine such as a wheel loader includes a radiator and a debris removing apparatus coupled with on-board compressed air and having at least one pressurized gas outlet configured to direct a gas toward the face of the radiator.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: September 2, 2008
    Assignee: Caterpillar Inc.
    Inventors: Kevin L. Martin, Dwight E. Elliott