With Nonliquid Cleaning Means For Separating Media Patents (Class 55/282)
  • Patent number: 10352842
    Abstract: A particulate matter detection element 1 includes paired detection electrodes 12 for detecting particulate matter contained in exhaust gas discharged from an internal combustion engine, and insulating member 13 made of electrically insulating material. In the particulate matter detection element 1, at least part of the paired detection electrodes 12 is exposed from the insulating member 13 in the direction perpendicular to the lamination direction of the paired detection electrodes 1, to cause part of the particulate matter to deposit thereon. The surface roughness of at least the insulating member disposed between the paired detection electrodes is between 0.8 ?m and 8.0 ?m in 10-point average roughness.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: July 16, 2019
    Assignee: DENSO CORPORATION
    Inventors: Kazuhiko Koike, Hironobu Shimokawa, Masayuki Tamura, Go Miyagawa, Tomotaka Mouri
  • Patent number: 10329985
    Abstract: A mixer assembly for treating exhaust with an injected reductant as the exhaust flows through an exhaust gas passageway includes a tubular shell and a rod. A first end and a second opposite end of the rod are fixed to the shell. The rod has a serpentine shape with a plurality of parallel extending portions interconnected by curved portions. The curved portions are positioned proximate an inner surface of the shell such that the rod traverses the exhaust passageway. The mixer assembly is positioned such that the rod is directly impinged by reductant injected into the exhaust gas passageway.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: June 25, 2019
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventor: Manoj K. Sampath
  • Patent number: 9849416
    Abstract: A method for cleaning an exhaust filter system is provided. The method includes removing ash from a first end of the exhaust particulate filter system using compressed air from the second end of the exhaust particulate filter system. The method also includes entraining particles from a second end of the exhaust particulate filter system using low pressure air. The method further includes blowing ash from the first end of the exhaust particulate filter system using compressed air from the second end of the exhaust particulate filter system. The method further includes removing the entrained particles from the second end of the exhaust particulate filter system.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: December 26, 2017
    Assignee: Caterpillar Inc.
    Inventor: Robert D. Clayton, Jr.
  • Patent number: 9353015
    Abstract: A ceramic honeycomb structure having a large number of flow paths partitioned by porous cell walls, the cell walls meeting the conditions; (a) the cell walls having porosity of 55-80%, (b) the cell walls having a median pore diameter D50 (measured by mercury porosimetry) of 5-27 ?m, (c) pores open on cell wall surfaces having an opening area ratio of 20% or more, (d) pores open on cell wall surfaces having a median opening diameter d50 (determined from equivalent circle diameters on an area basis) of 10-45 ?m, (e) the density of pores open on cell wall surfaces having equivalent circle diameters of 10 ?m or more and less than 40 ?m being 350/mm2 or more, (f) the maximum inclination of a curve of a cumulative pore volume relative to a pore diameter (determined from a pore distribution measured by mercury porosimetry) being 1.6 or more, and (g) a ratio D50/d50 of the median pore diameter D50 to the median opening diameter d50 being 0.65 or less.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: May 31, 2016
    Assignee: HITACHI METALS, LTD.
    Inventor: Shunji Okazaki
  • Publication number: 20150128807
    Abstract: A filter system and method of making same is disclosed. The system includes one or more of filter units, each having a plurality of spaced apart hydrophilic filter tubes coated with an attractant that entrains particulates without the need for woven filter material. The filter tubes may have a plurality of apertures therethrough to increase the surface area of the filter tubes. The filter units may be placed adjacent to each other but with their filter tubes laterally offset to increase the likelihood that particles will engage at least one coated tube.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 14, 2015
    Applicant: Dexwet International AG
    Inventor: Erich J. Peteln
  • Patent number: 8974564
    Abstract: A screen cleaning system cleans debris from a material catching screen surrounded by a frame. A hollow vacuum arm which moves over the screen. The arm has a slot in a side which is adjacent to the screen. The arm includes an inner arm pivotally coupled to a duct and an outer arm which movable with respect to the inner arm. The arm is moved by an actuator mechanism which includes a first pulley coupled to a drive shaft, a second pulley coupled to an end of the arm, a belt drivingly coupling the first pulley to the second pulley. The outer arm is slidably coupled to the inner arm and a spring is biased to urge the outer arm radially inwardly. A track is formed by the frame and a roller rides along the track and is rotatably coupled to an end of the outer arm.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: March 10, 2015
    Assignee: Deere & Company
    Inventors: James M. Hershbarger, Nathan R. Vandike
  • Patent number: 8974603
    Abstract: A filter that filters carbon dioxide in the gaseous, liquid or supercritical state is efficiently purified. The carbon dioxide is used to at least clean or dry an object to be treated, or to clean or dry the object to be treated. A method of purifying a filter for filtering carbon dioxide in a gaseous, liquid or supercritical state is provided. The carbon dioxide is used to at least clean or dry the object to be treated, or to clean and dry the object to be treated. According to the method, the filter 13 is purified before the carbon dioxide is filtered in the gaseous, liquid or supercritical state by the filter 13. The filter 13 is purified by allowing carbon dioxide to pass through the filter.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: March 10, 2015
    Assignee: Organo Corporation
    Inventors: Hiroshi Sugawara, Yoshinori Ono
  • Patent number: 8961633
    Abstract: The invention relates to filter cleaning in a vacuum having a switchable flap element, the cleaning of the filter or of parts of the filter being carried out by supplying a secondary air flow to the interior of the filter to be cleaned, and air being able to flow through the filters separately from each other from the outside to the inside in the vacuum container in a sealed manner, and a flap element disposed in a chamber housing being pivotable, by means of the pivoting of which openings may be closed and released, the secondary air flow reaching the surface of the filter to be cleaned from the inside toward the outside in pulses, characterized in that the flap element comprises at least two partial flaps, the pivoting of which is actuated by a pivot drive, the respective partial flap optionally closes the outflow opening of the respective filter chamber in the direction of the intake opening of the suction turbine, the blow-out side of the suction turbine delivers the created overpressure air into an overp
    Type: Grant
    Filed: September 5, 2009
    Date of Patent: February 24, 2015
    Assignee: Nilfisk-Advance A/S
    Inventors: Martin Kienzle, Günther Werbach, Rainer Hafenrichter, Klaus Dietz
  • Patent number: 8951320
    Abstract: A purifying device provided with a device for collecting particles, such as dust includes a chamber having an inner wall that is generally cylindrical around a central axis (X), the inner wall extending parallel to the central axis between first and second substantially parallel faces, wherein the chamber has an inlet opening and an outlet opening. The collecting device also includes a rotor which is rotatable around the central axis, and which includes at least three blades, each of which extend radially from a rotary shaft to the inner wall while defining, within the chamber, compartments which are sized such that the inlet and outlet openings are in constant communication with separate compartments. The inlet opening is provided in the first base and the outlet opening is provided in the second base.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: February 10, 2015
    Assignee: Alfyma Industrie
    Inventor: Serguei Galdkov
  • Patent number: 8951319
    Abstract: An air cleaner adapted to filter out various types of substances through a filter assembly, as well as automatically remove the filtered substances, and a method for controlling the operation of such an air cleaner, are provided. The air cleaner may include a rotation brush unit installed on an inner wall surface of a front panel, facing a front surface of a mesh-type filter body and adapted to rotate while maintaining contact with the front surface of the filter body. When a suction operation is terminated, the rotation brush unit may to remove dust accumulated on the surface of the mesh-type filter body.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: February 10, 2015
    Assignee: LG Electronics Inc.
    Inventors: Hyun-Woo Kim, Jung-Min Moon, Jeong-Sang Seo, Kyeong-Bo Kim
  • Patent number: 8945261
    Abstract: Apparatus for centrifugal separation of solid and/or liquid particles from a flow of gas, wherein two or more rotors (12) provided with conical separation surface elements (16) are located in a surrounding stationary casing (14), which delimits a common chamber (15) for collecting particles separated in the rotors. Each rotor has a fan (26) rotating together therewith. The fans (26) of the rotors are located in a common fan housing (30) that is separate from and adjacent to the casing (14) defining the collection chamber (15).
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: February 3, 2015
    Assignee: 3Nine AB
    Inventors: Claes Inge, Peter Franzén
  • Patent number: 8813518
    Abstract: The filter 3 is extruded to the outside of the casing of the air conditioner along the inner side of an open panel 15 which is provided at the front surface side of an air intake grill 14 and opened/closed at the time of the operation of the air conditioner.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: August 26, 2014
    Assignee: Fujitsu General Limited
    Inventors: Shinji Sugiyama, Makoto Shibuya, Akihiko Nojima
  • Publication number: 20140230651
    Abstract: A filtration system particularly suited for removing a particulate material from a hot gas includes a housing, a collection system including an array of collection elements, a cleaning system to clean the collected particulate material from the collection elements, and a removal system for removing the collected particulate material from the housing.
    Type: Application
    Filed: December 3, 2013
    Publication date: August 21, 2014
    Applicant: Cambridge International Inc.
    Inventors: Maxwell Lawrence KEELING, Melody Elizabeth FERNAAYS, Matthew Charles O'CONNELL, Grace Amarachukwu Pokoo AIKINS, George H. MESSICK, JR., Robert E. MAINE, JR.
  • Publication number: 20140123609
    Abstract: A radiator screen arrangement (10) for a combine harvester is provided. A screen (12) through which air, which is to pass through a radiator, is drawn by a fan. Rotating means (16) are provided for rotating the screen. Blanking means (18), past which the screen is rotated, provides a blanked off area of the screen which is not subject to the induction pressure of the fan and from which particles can therefore be more easily removed. The arrangement is characterised in that the blanking means has a leading edge (18a) which is of generally spiral shape so that the particles on the outer surface of the screen which enter the blanked-off area can reach the outer periphery (12d) of the rotating screen without being exposed to the induction pressure of the fan and hence have an improved chance of being detached from the screen.
    Type: Application
    Filed: December 12, 2011
    Publication date: May 8, 2014
    Applicant: AGCO do Brasil Comercio a Industria Ltd
    Inventor: Brian Jay Hollatz
  • Publication number: 20130305926
    Abstract: Filter systems and methods described herein include one or more spacer elements positioned in the dirty air chamber along with the filter elements attached to the spacer elements. The dirty air inlet delivers a dirty air stream into the dirty air chamber along a dirty air flow axis.
    Type: Application
    Filed: May 17, 2013
    Publication date: November 21, 2013
    Inventor: Thomas D. Raether
  • Publication number: 20130276628
    Abstract: This invention proposes a method of removing pollutants from high temperature gasses prior to their introduction in to a heat exchanger of a steam generating boiler within a power generation system. The method comprises placing a filter system (100) in a hot gas flow path upstream of a waste-heat boiler. The filter system comprising at least two banks of substantially hollow elongate filters (110), each of which filters particles from the gas flow as it flows from an external surface thereof to an internal surface thereof. Valves (104, 106) enable each bank of filters to be isolated from the hot gas flow path. The method included periodically isolating at least one bank of filters while passing hot gasses through at least another of the banks of filters, and cleaning the isolated bank of filters. After cleaning the filters (110) lime is injected into the flow path so that it coats the outer surface of the filters (110) to produce a loose lime coating thereon.
    Type: Application
    Filed: April 7, 2011
    Publication date: October 24, 2013
    Applicant: CHINOOK SCIENCES, LIMITED
    Inventors: Rifat Al Chalabi, Ophneil Henry Perry
  • Publication number: 20130174524
    Abstract: Apparatus for centrifugal separation of solid and/or liquid particles from a flow of gas, wherein two or more rotors (12) provided with conical separation surface elements (16) are located in a surrounding stationary casing (14), which delimits a common chamber (15) for collecting particles separated in the rotors. Each rotor has a fan (26) rotating together therewith. The fans (26) of the rotors are located in a common fan housing (30) that is separate from and adjacent to the casing (14) defining the collection chamber (15).
    Type: Application
    Filed: September 20, 2011
    Publication date: July 11, 2013
    Inventors: Claes Inge, Peter Franzén
  • Publication number: 20130125754
    Abstract: A headgear assembly for a baghouse filter can include a headgear configured to allow for concentric arrangement of first and second filters coupled thereto, where at least one of the first filter, second filter, and headgear can include an opening through which accumulated particulate from the second filter can pass. The headgear assembly can also include a cleaning assembly configured to facilitate cleaning of at least one of the first and second filters. Methods of facilitating on-line cleaning of a baghouse filter are also described wherein an exhaust stream is passed through concentrically arranged first and second filters to produce a filtered stream. At least one of the first and second filters can be cleaned using a cleaning assembly to remove accumulated particulate, which can pass through an opening in at least one of the first filter, the second filter, and the headgear.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 23, 2013
    Applicant: FLUOR TECHNOLOGIES CORPORATION
    Inventors: Dennis W. Johnson, James H. Brown, Michael J. Martin
  • Publication number: 20130101471
    Abstract: The present disclosure relates to an exhaust-gas aftertreatment system for an internal combustion engine, having an exhaust line and having provided therein a filter arrangement which comprises a first particle filter element and a second particle filter element, wherein the first particle filter element is equipped with an active regeneration device for restoring its filtration performance. The disclosure furthermore relates to a method for operating an exhaust-gas aftertreatment system of said type and to the use thereof.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 25, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: FORD GLOBAL TECHNOLOGIES, LLC
  • Patent number: 8377176
    Abstract: There is provided method and apparatus for creating a longitudinally disposed, sharp puff of gas, useful for puffback renewal of gas-entry faces of a panel-bed gas filter or a panel-bed gas-powder contactor. Perforations are disposed along the wall of a tank in a path generally parallel to the tank's axis. Stoppers are provided for stoppering the perforations. With the perforations so stoppered, a gas is introduced at high pressure into the tank. Thereafter, quickly unstoppering the perforations releases the gas from the tank in form of a longitudinally disposed, sharp puff of gas moving in a direction perpendicular to the tank's axis. If the tank is placed vertically alongside or within a space receiving gas from a panel bed, the sharp puff can effectively puffback the panel bed.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: February 19, 2013
    Assignee: Arthur M. Squires Irrevocable Trust
    Inventor: Arthur M. Squires
  • Patent number: 8262762
    Abstract: Methods, techniques, and constructions are provided for use to apply an evacuation valve arrangement on an air cleaner assembly that is configured for pulse jet operation. An example evacuation valve arrangement is provided which comprises a valve member in the form of a sleeve that extends completely around a sidewall portion of an air cleaner housing of a pulse jet air cleaner. Examples are depicted in which the sidewall portion can comprise: a portion of a housing sidewall section that surrounds an installed filter cartridge, in use; a portion of an access cover; or, a drop tube secured to a portion of the housing, for example either on an access cover or on another portion of a housing. Specific features and alternatives are described. Also, methods of assembly and operation are described.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: September 11, 2012
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas Olson, Gary Gillingham, Fred Wahlquist
  • Publication number: 20120167533
    Abstract: This invention relates to an in-situ cleaning fixture for demister separator vane assemblies. The cleaning fixture includes an injection chamber with an inlet and a perforated plate which extends horizontally, substantially over the length of the demister separator vane assembly. A cleaning fluid source is connected to the injection chamber during a cleaning process. The injection chamber is designed to receive the cleaning fluid, pass the cleaning fluid through the holes formed in the plate, downwardly along a plurality of vanes in the demister separator vane assembly and into the drain trough. The in-situ cleaning fixture facilitates removal of scale build-up from the demister separator vane assembly and thereby restores the efficacy of the vanes.
    Type: Application
    Filed: January 5, 2012
    Publication date: July 5, 2012
    Applicant: WESTINGHOUSE ELECTRIC COMPANY LLC
    Inventor: Padmanabha J. Prabhu
  • Publication number: 20110203460
    Abstract: A device for separating and collecting liquid in gas from a reservoir, which is attached to processing equipment (14, 15) for gas, said gas being delivered to the processing equipment from the device via an inlet pipe (24) to the processing equipment and the collected liquid is removed periodically from the device via liquid outlet pipe (7). The device is formed of a liquid separator (1) and a liquid collector (2) which are two separate chambers, and which are connected to each other via a valve (3), and that for draining of the collected liquid, the liquid collector (2) is connected to an outlet pipe (19) from the processing equipment via an intermediate valve (6), draining taking place with the aid of compressed gas which via the intermediate valve (6) is supplied from the processing equipment, or alternatively from onshore or a platform, from a gas pipe or a well stream gas pipe on the seabed or the like.
    Type: Application
    Filed: July 13, 2009
    Publication date: August 25, 2011
    Inventors: Hâkon Skofteland, Kjell Olav Stinessen
  • Patent number: 7936566
    Abstract: An electronic control unit has a respiratory filter mounted on a waterproof case. Raised protective walls formed in the case surround the portion of the case at which the respiratory filter is arranged. At least two concave portions are provided for drainage that each extend through different positions of the protective walls.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: May 3, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Toshikazu Shigyo, Kazunori Nozawa
  • Patent number: 7927396
    Abstract: Methods, techniques, and constructions are provided for use to apply an evacuation valve arrangement on an air cleaner assembly that is configured for pulse jet operation. An example evacuation valve arrangement is provided which comprises a valve member in the form of a sleeve that extends completely around a sidewall portion of an air cleaner housing of a pulse jet air cleaner. Examples are depicted in which the sidewall portion can comprise: a portion of a housing sidewall section that surrounds an installed filter cartridge, in use; a portion of an access cover; or, a drop tube secured to a portion of the housing, for example either on an access cover or on another portion of a housing. Specific features and alternatives are described. Also, methods of assembly and operation are described.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: April 19, 2011
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas R. Olson, Gary Gillingham, Fred Wahlquist
  • Patent number: 7905947
    Abstract: A filter assembly comprising a housing having an air inlet and an air outlet and a filter chamber disposed between the inlet and the outlet, the housing having an air flow path there through. A filter element having a first surface area maybe located within the filter chamber and oriented such that the first surface area is angled with respect to the air flow path. The filter element may comprise a filter media adapted to remove contaminants from the air. A drain may be associated with the housing and adapted to remove contaminants filtered out of the air.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: March 15, 2011
    Assignee: L.C. Eldridge Sales Co., Ltd.
    Inventors: Gary T. Leseman, Joseph B. Davis
  • Publication number: 20100236199
    Abstract: A dust collector that collects dust (12) in gas (11) and purifies the gas (11) includes a tube plate (16) being provided in a dust collector frame (13) that separates an interior into a gas introduction chamber (14) and a gas discharge chamber (15), a plurality of dust collection pipes (17) being hung from the tube plate (16) that feeds the gas (11) from outside to inside and removes the dust (12) on a surface thereof, a gas introduction pipe (18) being provided in the gas introduction chamber (14) that includes a gas opening end portion (18a) positioned near the tube plate (16), and supplies the gas (11) to the dust collection pipes (17) in a downflow direction, a diffuser (19) being provided at the opening end portion (18a) of the gas introduction pipe (18), and a gas discharging unit (21) being provided in the gas discharge chamber (15) that discharges purified gas (20).
    Type: Application
    Filed: November 6, 2006
    Publication date: September 23, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Katsuhiko Yokohama, Yuichiro Kitagawa, Masashi Kitada
  • Patent number: 7789921
    Abstract: Portable devices for mitigating the accumulation and localized settling of airborne particulates are provided. The devices establish airflow patterns which push or carry various airborne particulates outwardly away therefrom, thereby establishing a localized zone having relatively fewer airborne particulates. Correspondingly, each the devices establishes a localized zone, defined circumferentially about the perimeter of the device, in which there is relatively less surface accumulation of particulates which were previously airborne and settled out. The devices establish such airflow patterns by proving a fan which draws a volume of air axially through a top portion of the device, then pushes the volume of air axially down through the device where it is radially emitted from the bottom portion of the device, defining a circumferentially expanding plane of airflow.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: September 7, 2010
    Assignee: S.C. Johnson & Son, Inc.
    Inventors: Matthew N. Thurin, Michael J. Maloney, Jeremy F. Knopow, Kevin L. Askling, René Maurice Béland
  • Patent number: 7662197
    Abstract: In a method for operating an exhaust-gas cleaning unit of a diesel engine including a particle filter and a nitrogen oxide storage device arranged upstream of the particle filter, wherein sulfur regeneration of the nitrogen oxide storage device is performed periodically at raised exhaust gas temperatures and, in certain phases, with a rich exhaust gas composition, and also soot regeneration of the particle filter is performed at raised exhaust gas temperatures with a lean exhaust gas composition, at least some of the sulfur regeneration and the soot regeneration phases are performed in a combined soot and sulfur regeneration phase, and for the sulfur regeneration, at least temporarily, a rich exhaust-gas composition with a temperature higher than the temperature of the lean exhaust gas composition is provided for the soot regeneration of the particle filter.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: February 16, 2010
    Assignee: Daimler AG
    Inventors: Frank Duvinags, Stefan Kurze, Thomas Liebscher, Arno Nolte, Markus Paule, Norbert Ruzicka, Joachim Schommers
  • Publication number: 20090293835
    Abstract: An air-cooled engine is provided, in which a cooling fan assembly for inducing a stream of cooling air and a screen member for covering an axial end face of the cooling fan on a suction side are drivingly mounted on a rotary drive shaft of the engine. A fan casing covering the cooling fan assembly and defining an air flow path for the flow of the stream of cooling air is formed with an air intake opening through which the cooling air is introduced towards the cooling fan assembly and the screen member. A cutter is formed in an outer peripheral portion of the screen member or its neighbor so as to protrude axially close to an inner surface of the fan casing at a position downstream of the cooling air from the air intake opening.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 3, 2009
    Inventor: Keiichi Nakamizo
  • Publication number: 20090211208
    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: Application
    Filed: December 19, 2008
    Publication date: August 27, 2009
    Inventors: Brian K. Johnson, Panos Tamamidis, David A. Scott
  • Patent number: 7494520
    Abstract: A filter device for a vacuum cleaner includes a casing having a collecting space therein, a suction opening through which air including dust is sucked, formed eccentrically at one side so that sucked air can be rotated and a discharge opening through which purified air is discharged. A filter is installed at an internal space of the casing, for filtering dust from air sucked through the suction opening. A filter cleaning unit is disposed at an outer circumferential surface of the filter, for cleaning the filter by being rotated by a rotation force of air sucked through the suction opening. A rotation restrainer is provided for restraining rotation of the filter cleaning unit when the filter cleaning unit reaches a topmost position. Accordingly, fine dust attached to the filter in cleaning is removed so that a channel of the filter can be prevented from being closed.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: February 24, 2009
    Assignee: LG Electronics Inc.
    Inventors: Hyeun-Sik Nam, Yong-Woo Lee, Choon-Myun Chung, Ho-Seon Rew
  • Patent number: 7429285
    Abstract: A honeycomb structure 20 includes a cell structure 10 having a plurality of cells 9 communicating between two open ends being partitioned and defined by porous partition walls 7, an outer wall 30 disposed at the periphery of the cell structure 10, and first plugging portions 25 disposed in a checkered flag pattern at one end and the other end of the cell structure 10 by plugging alternately either of the two open ends of the cells, a fluid to be flown from one of the open ends of each of the cells 9 being capable of penetrating the porous partition walls 7 and flowing out from the other open end 5 of each of the cells 9 as a filtered fluid. The honeycomb structure 20 includes the first plugging portions 25 having been fired after plugging, and second plugging portions 26 having been unfired even after plugging.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: September 30, 2008
    Assignee: NGK Insulators, Ltd.
    Inventors: Tatsuyuki Kuki, Ryuji Kai
  • Patent number: 7419520
    Abstract: A dust collection unit for a vacuum cleaner includes a dust collection container for collecting foreign objects contained in air introduced therein, covers defining a top and bottom of the dust collection container, and a filter-cleaning unit having a plurality of brushes rotating around the porous filter unit to remove the foreign objects clogging the outer surface of the porous filter unit.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: September 2, 2008
    Assignee: LG Electronics Inc.
    Inventors: Chang Ook Lee, Jae Won Choi
  • Patent number: 7399419
    Abstract: A filter system includes a set of modules, each module including screen assemblies and filter media sandwiched between the screen assemblies. A plurality of control assemblies are associated with each of the modules. Each of the control assemblies is in fluid communication with a corresponding module to control flow through the corresponding module. The control assemblies selectively control fluid in each of the modules between at least one of a forward flow through the screen assemblies to treat an influent flow, a bypass flow to bypass at least one of the modules, and a reverse flow to backwash a given filter media. A method of filtering influent includes providing an influent flow to a set of modules, each module including screen assemblies and filter media sandwiched between the screen assemblies. The influent is filtered by directing the influent through the set of modules. A given module is bypassed when the given module becomes occluded.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: July 15, 2008
    Assignee: Filtersure, Inc.
    Inventors: Ronald D. Barbaro, Ronald E. McIlwain, David Munyan
  • Patent number: 7329292
    Abstract: A trap device including at least one substance delivery element for introducing a substance therein is disclosed. The delivered substance may influence the nature of deposits that have formed within the trap device, may influence the formation of deposits within the trap device, or may cause a precipitate to form. Deposit interaction elements may be employed to influence the distribution or redistribution of deposits within the trap device. Deposit interaction elements may effect thermal conditions, introduce substances, or physically interact with deposits within the trap device. Further, a storage region within the trap device may be used to accumulate deposits. In one embodiment, a substantially continuous path through the trap device may be maintained or preserved so that deposits form within the trap device except substantially along the path. The present invention also encompasses a method of operation of a trap device as well as a system incorporating same.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: February 12, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Allen P. Mardian, Philip H. Campbell
  • Patent number: 7294169
    Abstract: A method for operating a filter assembly having a filter medium includes applying a constant or nearly constant static DC potential to dust entering the filter assembly and the filter medium, passing dust-laden gas through the filter medium in a first direction through the filter assembly while the filter medium is statically charged with the DC potential, measuring pressure drop through the filter assembly, and, in response to the pressure drop meeting a preset limit, reversing the polarity of the DC potential to thereby allow dust particles on the filter medium to drop off the filter medium.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: November 13, 2007
    Assignee: General Electric Company
    Inventor: Robert W. Taylor
  • Patent number: 7241329
    Abstract: The invention concerns a method which consists in using a single-piece casing (1), without break; then for a first cleaning process, in cutting the casing (1) between the zone (4) containing the filter and the zone (6) containing the other element; then in cleaning the part containing the particle filter; and in assembling once more the two parts, so that the global dimensions of the casing (1) are substantially unchanged.
    Type: Grant
    Filed: May 28, 2001
    Date of Patent: July 10, 2007
    Assignee: Faurecia Systems d'Echappement
    Inventor: Thomas Weber
  • Patent number: 7238223
    Abstract: An apparatus for removing constituents from a fluid stream is provided. The apparatus includes a duct, a collection device, a sorbent injector, and an acoustic generator. The duct has a fluid passageway to receive a fluid stream having constituents. The collection device filters the fluid stream. The sorbent injector injects a sorbent in the fluid passageway of the duct. The acoustic generator generates an acoustic field in the fluid passageway of the duct to promote sorption of the constituents for collection by the collection device. Additionally, a method is provided for removing constituents from a fluid stream.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: July 3, 2007
    Assignee: Board of the Regents, The University of Texas System
    Inventor: G. Douglas Meegan, Jr.
  • Patent number: 7183104
    Abstract: The present invention is embodied in a system for collecting biological samples from air including a collection assembly to store at least one biological sample and a separator to remove selected particles from the air prior to entry into the collection assembly. In one embodiment, the selected particles are magnetic and the separator includes at least one magnet to attract the particles from the air.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: February 27, 2007
    Inventor: Clifford A. Megerle
  • Patent number: 7147079
    Abstract: The invention relates to a device to prevent the formation of solid matter due to projections on an air outlet, for example that of an armored vehicle, located near to such projections. It comprises a shutter 1 incorporating at least two vibrating fins 3 fixed onto a support 2, said fins being of two different types mounted alternatively and vibrating differently. One vibrating fin 3a is connected to the support by a number N of fastenings and the other vibrating fin 3b by a number N+/?1 fastenings. The support 2 for the vibrating fins is constituted by an assembly of bars 2a, 2b that are substantially perpendicular to the fins 3. Abutments 5 are placed on the fins 3 or on the support 2.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: December 12, 2006
    Assignee: Giat Industries
    Inventors: Michel Brun, Sylvain Carlier, Antoine Saunier
  • Patent number: 7077888
    Abstract: The invention relates to a device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants, comprising at least one dust filter via which the flue gases are guided, and by means of which the dust from the flue gases can be filtered out as it passes through the dust filter. In order to produce a device which separates dust in a highly efficient manner and which can be operated in a highly reliable manner and be used to heat combustion air for the combustion plant, the at least one dust filter is embodied as a bulk material filter in whose bulk material heat from the flue gases can be collected when the bulk material is cross-flown by the flue gases and by means of whose bulk material heat collected from the flue gases when the combustion air of the combustion plant flows through the bulk material filter can be given off to said combustion air.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: July 18, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Harald Dichtl, Thomas Hagen, Roland Klaus, Jörg Lengert
  • Patent number: 6783572
    Abstract: There is provided an improved panel-bed method and apparatus for achieving an intimate contact of a gas and a loose granular solid material (e.g., for filtering dust from the gas). A bed of the material is housed in a tall, narrow panel, across which gas moves in a substantially horizontal direction. Gas-entry portions of the granular bed are supported by louvers that slope inwardly and upwardly from nearby their outer edges. The total area of the gas-entry faces presented by these gas-entry portions is greater than the projected vertical frontal area of the panel. After an interval of the contact, gas-entry faces of the granular material are renewed by causing en masse displacement of the material respecting the supporting louvers, the displacement producing a spill of a surface layer from each gas-entry face. This displacement is preferably accomplished by causing louvers to move sharply upward (e.g., as may be caused by an upward blow of a hammer).
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: August 31, 2004
    Inventor: Arthur M. Squires
  • Patent number: 6729154
    Abstract: An air conditioner having a dust removing device which enables dust having stuck to its filters to be automatically removed without fail and prevents the removed dust from sticking again to the filters is to be provided. It is equipped with a sliding device 6 (motor 6) for sliding in a prescribed direction filters 5 arranged between an air intake port 121 and a heat exchanger 3, and with cleaners 7 to remove dust having stuck to the filters 5, automatically cleans the filters 5 and prevents the removed dust from being brought out of the cleaners 7.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: May 4, 2004
    Assignee: Fujitsu General Limited
    Inventors: Shinsei Takashima, Masamitsu Usui, Hideyuki Umenaka, Yoji Maki
  • Publication number: 20040060578
    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: Application
    Filed: October 22, 2003
    Publication date: April 1, 2004
    Inventor: Andre Feugier
  • Patent number: 6706084
    Abstract: A deflector is provided for deflecting foreign matter from the inlet screen of a rotary lawn motor. The rotary lawn motor has an engine that draws air through the inlet screen. The deflector includes an inner element positionable over a center portion of the inlet screen. A first outer element is positioned over a radially outer portion of the inlet screen. A deflection arm extends between the inner element and the first outer element to deflect the foreign matter away from the inlet screen during operation of the lawnmower.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: March 16, 2004
    Assignee: Generac Power Systems, Inc.
    Inventors: Don R. Bayer, Gerald C. Ruehlow
  • Publication number: 20040000160
    Abstract: An air conditioner having a dust removing device which enables dust having stuck to its filters to be automatically removed without fail and prevents the removed dust from sticking again to the filters is to be provided. It is equipped with a sliding device 6 (motor 6) for sliding in a prescribed direction filters 5 arranged between an air intake port 121 and a heat exchanger 3, and with cleaners 7 to remove dust having stuck to the filters 5, automatically cleans the filters 5 and prevents the removed dust from being brought out of the cleaners 7.
    Type: Application
    Filed: June 19, 2003
    Publication date: January 1, 2004
    Applicant: FUJITSU GENERAL LIMITED
    Inventors: Shinsei Takashima, Masamitsu Usui, Hideyuki Umenaka, Yoji Maki
  • Patent number: 6569218
    Abstract: A method of using vacuum-cleaner filters includes mounting a cylindrical-shaped filter cartridge coaxially on a rotatable spindle. Then air is drawn radially through a filter material wall of the filter cartridge. Periodically, the cartridge filter on the spindle is spun to dislodge any debris entrapped in the filter material by centrifugal force. Air flow is selectively drawn or pushed radially through a filter material wall of the filter cartridge. A clutch disposed between a motor and the spindle is used to periodically spin the cartridge filter on the spindle to dislodge any debris entrapped in the filter material by centrifugal force. Preferably, a motor that can be run in either a forward direction or a reverse direction is used.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: May 27, 2003
    Inventor: David Edmond Dudley
  • Patent number: 6569217
    Abstract: A specially arranged industrial dust collector with multiple filtering compartments is provided which is efficient, effective, and economical. The special industrial dust collector has a solids-gas separation compartment which is positioned generally alongside and laterally offset from multiple filtering compartments. The multiple filtering compartments can contain cartridge filters or other filters. The solids-gas separation compartment can contain a tangential cyclone separator or another type of solids-gas separator.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: May 27, 2003
    Inventor: Thomas M. DeMarco
  • Publication number: 20020083836
    Abstract: A gas turbine suction air filter is provided wherein, despite a large capacity, dust is easily removed by an ultrasonic washer. A gas turbine suction air filter (1) comprises a box-like frame member (3) and a filter cloth (5) contained in the frame member (3). The frame member (3) is made of a metal material, preferably a stainless steel. The filter cloth (5) is formed having many pleats so that many folded faces (7) are formed. Between adjacent folded faces (7, 7), no intervening member is provided with only a space being arranged there. The filter cloth (5) is a non-woven fabric of a synthetic resin fiber, preferably a polypropylene fiber. While this filter (1) has a large capacity, the ultrasonic wave reaches to the entire filter cloth (5) when the filter (1) is washed by an ultrasonic washer.
    Type: Application
    Filed: April 20, 2001
    Publication date: July 4, 2002
    Inventors: Yoshiyuki Doi, Toyosei Aota, Katsutoshi Okuno, Shigeru Maehata, Kenji Isohasi, Tatsuo Adachi, Satosi Hara