Central Header Patents (Class 210/347)
  • Patent number: 10918985
    Abstract: A filter cell element for use in a housing to form a filtering assembly. The filter element has a media pack having an interior and a separator element having a passage therein for radial fluid communication between the media pack interior and an edge of the media pack. An overmold seal at the media pack edge seals the media pack to the separator element. Methods of making the filter element and methods of using are also disclosed.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: February 16, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Nathan E. Marks, Thomas J. Hamlin, Gokhan Kuruc
  • Patent number: 10639564
    Abstract: The present invention relates to: an improved metal filter having a plurality of apertures which are micropores having a taper shape by which the diameters thereof become narrower from an upstream end towards a downstream end in a state where the directions of the apertures are perpendicular to, or are at an acute angle with respect to the flowing direction of a fluid containing solid foreign substances; and a permanent filter assembly having a filtering pipe connected, in the form of a pitot tube, part-way along a flow pipe in which the fluid containing foreign substances flows, and having the improved metal filter communicatably mounted on the upstream end of the filtering pipe.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: May 5, 2020
    Assignee: ARUN CO., LTD.
    Inventor: Soon-bong Oh
  • Patent number: 10173151
    Abstract: Provided are filter elements or cells and filtration assemblies or capsules for purifying and/or clarifying fluids used during various biopharmaceutical applications, for example, chromatography or depth filtration, and processes for making and using the same. A filter element comprises a media pack comprising two sides and a separator element located between the two sides, at least one side comprising a filtration media, wherein an inner edge periphery and/or an outer edge periphery of the filtration media comprise a bond directly to a portion of the separator element.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: January 8, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey A. Lucas, Kenneth M. Burke, Anna I. Bailey
  • Patent number: 10126213
    Abstract: A device (201) is provided for collecting a substance from an ambient fluid. The device includes a housing (205) equipped with an (207) inlet and an outlet (209) which are in fluidic communication with each other, and a collector (203) which has a plurality of spaced-apart layers (213). The collector is disposed in a fluidic flow path between the inlet and the outlet such that a flow of fluid passes through adjacent layers of the collector. Each of the layers includes a substrate (217) having a sorbent or adherent (219) disposed thereon, and a plurality of embossments (215) which maintains the layers in the spaced-apart configuration.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: November 13, 2018
    Assignee: Signature Science, LLC
    Inventors: John Kirby Kendall, Robyn L. Guerrera, Alec N. Van Tilburg
  • Patent number: 9927329
    Abstract: A device (201) is provided for collecting signatures from an ambient fluid. The device includes a housing (205) equipped with an (207) inlet and an outlet (209) which are in fluidic communication with each other, and a signature collector (203) which has a plurality of spaced-apart layers (213). The signature collector is disposed in a fluidic flow path between the inlet and the outlet such that a flow of fluid passes through adjacent layers of the signature collector. Each of the layers includes a substrate (217) having a sorbent or adherent (219) disposed thereon, and a plurality of embossments (215) which maintains the layers in the spaced-apart configuration.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: March 27, 2018
    Assignee: Signature Science, LLC
    Inventors: John Kirby Kendall, Robyn L. Guerrera, Alec N. Van Tilburg
  • Patent number: 9707497
    Abstract: A filter assembly and cage and/or capsule apparatus including upstream and downstream and optional intermediary supports having modified features to maximize fluid flow through the filter assembly. The cage apparatus has a plurality of posts with stacked ridges that function as cap engaging teeth. A cage end cap is formed with a plurality of slots corresponding in configuration and position to the plurality of posts. The combination of slots and ridges interact to create a locking mechanism to adjustably secure the end cap to the cage and to generate the necessary compression to seal the enclosed filter discs and supports. The upstream supports are formed with channels in an outer ring and optional channels in radially extending ribs to improve fluid ingress and transfer to the filter discs. The downstream supports are formed with channels or tunnels in an inner ring to facilitate filtrate egress into a filter assembly outlet.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: July 18, 2017
    Inventor: Zhenwu Lin
  • Patent number: 9586844
    Abstract: Provided is a method for treating an arsenic-containing aqueous solution by water treatment employing a titanium dioxide photocatalyst that is excellent in both photocatalytic activity and solid-liquid separation performance. The method according to the present disclosure includes the steps: of adding catalyst particles to the aqueous solution; oxidizing trivalent arsenic by irradiating the aqueous solution with light having a wavelength of 200 nanometers or more and 400 nanometers or less while stirring the catalyst particles in the aqueous solution; and stopping the stirring and separating the catalyst particles from the aqueous solution by sedimentation. Each catalyst particle is composed only of a titanium dioxide particle and a zeolite particle, the titanium dioxide particle is adsorbed on the outer surface of the zeolite particle, the zeolite particle has a silica/alumina molar ratio of 10 or more, and the catalyst particles are contained in the aqueous solution at a concentration of 0.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: March 7, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yuko Maruo, Daisuke Ino
  • Patent number: 9209100
    Abstract: A housing for a device operated under at least one of a vacuum and a protective gas includes at least one housing interior space, at least one receiving region configured to receive at least one getter material, and a connection between the at least one housing interior space and the at least one receiving region. The connection includes a particle-impervious bond.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: December 8, 2015
    Assignee: GSI HELMHOLTZZENTRUM FUER SCHWERIONENFORSCHUNG GMBH
    Inventors: Tobias Engert, Ivan Kojouharov, Juergen Gerl
  • Patent number: 9155984
    Abstract: The invention relates to a screen carrier element (100) for a filtration device comprising at least one screen cavity (101) for arranging at least one filter unit (10) therein, a support tube (15) having cut-outs (15.4) and a plurality of disk filter elements (11), each having a central hub (11.3) with which they are mounted on the support tube (15). A semi-permeable filter medium (11.1) surrounds the hub and is spread out to form a three-dimensional structure. At least one flow channel (11.4) extends in the hub element (11.5) from the main body enveloped by the filter medium (11.1) to the support tube (15), wherein the support tube (15) leads into an outlet channel (102) of the screen carrier element (100). The support tube (15) comprises a bearing section (15.1, 15.2) protruding from beneath the disk filter elements, and said bearing section can be inserted into the outlet channel (102) from the screen cavity (101).
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: October 13, 2015
    Assignees: Nordson Holdings S.A.R.L. & Co., KG, Seebach GMBH
    Inventors: Stefan Wostmann, Thomas Grimm-Bosbach
  • Publication number: 20150129510
    Abstract: A filter assembly is provided. The filter assembly includes a filter cartridge with a containment bag including a vent port and a support housing, including a split lid.
    Type: Application
    Filed: January 22, 2015
    Publication date: May 14, 2015
    Applicant: PECOFACET (OKLAHOMA) LLC
    Inventors: Richard Johnson, Benjamin Harrison, Paris Rivera, Pete Florez
  • Patent number: 9028692
    Abstract: A filter device is configured to filter a liquid. The filter device includes a drum sized to receive the liquid and a plurality of filter panels coupled to the drum to define a plurality of discs. The liquid passes through at least a portion of one of the discs. Each filter panel includes a perimeter frame that defines a panel normal flow area and a filter media coupled to the perimeter frame. The filter media may be adapted to include a plurality of pleats.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: May 12, 2015
    Assignee: Evoqua Water Technologies LLC
    Inventors: Peter J. Petit, William Davis
  • Patent number: 9023208
    Abstract: A filter device having a vent device for inhibiting formation of a vacuum in the filter device. The filter device includes a drum for receiving the liquid wherein the drum includes a drum headspace. The filter device also includes filter sets for filtering the liquid. The drum is rotated to enable cleaning of filter media. The filter device also includes a frame having spaced apart supports for supporting each of the filter sets. A fluid passageway extends between the supports, wherein the fluid passageway provides fluid communication between the tank headspace and a filter set to vent a filter set.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: May 5, 2015
    Assignee: Evoqua Water Technologies LLC
    Inventors: William E. Davis, Peter J. Petit
  • Patent number: 8875904
    Abstract: A circular filtering disc and a filter device having the filtering disc. The filtering disc includes a circular partition plate having an inner hub and an outer rim, with radial inlet holes formed in the outer rim and introducing water to the partition plate, and a vertical outlet hole formed in the center of the inner hub and discharging pure water; and a filter fabric placed on or below the partition plate, wherein water supplied to the filtering disc passes through the filter fabric and becomes concentrated at the vertical outlet hole, and is discharged from the filtering disc through the vertical outlet hole. In the filter device, raw water is supplied through the circumferential edges of the circular filtering discs stacked on top of one another in the filter device and is filtered prior to being discharged from the filter device through the center of the filtering discs.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: November 4, 2014
    Assignee: K-1 Ecotech Co., Ltd.
    Inventors: Chang Hyun Choi, Dae Hyun No, Jong Sang Kim
  • Publication number: 20140299534
    Abstract: A horizontal filter press is disclosed. The horizontal filter press comprises a support bracket, a head bracket, two sidebars spanning a distance between said support bracket and said head bracket, and a plurality of double filter plates. Each double filter plate comprises a first individual filter plate having a first filter chamber, one or more first filtrate ports, at least one first feed eye port, and at least one first handle; and a second individual filter plate having a second filter chamber, one or more second filtrate ports, at least one second feed eye port, and at least one second handle. The first and second individual filter plates are initially separate components, but are subsequently mechanically joined together to form said at least one double filter plate. In some embodiments a spacer bar is provided between the first and second individual filter plates.
    Type: Application
    Filed: October 19, 2012
    Publication date: October 9, 2014
    Inventor: Reuben Neumann
  • Patent number: 8808542
    Abstract: A filter device having a vent device for inhibiting formation of a vacuum in the filter device. The filter device includes a drum for receiving the liquid wherein the drum includes a drum headspace. The filter device also includes filter sets for filtering the liquid. The drum is rotated to enable cleaning of filter media. The filter device also includes a frame having spaced apart supports for supporting each of the filter sets. A fluid passageway extends between the supports, wherein the fluid passageway provides fluid communication between the tank headspace and a filter set to vent a filter set.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: August 19, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventors: William E. Davis, Peter J. Petit
  • Patent number: 8801929
    Abstract: A filter device for filtering a liquid which includes trash. The device includes a drum for receiving the liquid and trash, wherein the drum includes at least one drum aperture. The device further includes a first pair of filter panels which are adapted for filtering the liquid. The filter panels are spaced apart to form a cavity for receiving the liquid and trash. The device further includes a frame for supporting the filter panels, wherein the frame is coupled to the drum. The frame includes a frame aperture wherein the frame aperture and the cavity form a volume having a cross sectional area sized substantially equal to or greater than the drum aperture and wherein said volume extends to a second pair of filter panels to enable liquid and trash which pass through the drum aperture to also pass through the frame aperture to the second pair of filter panels.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: August 12, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventors: William E. Davis, Peter J. Petit
  • Patent number: 8764980
    Abstract: Embodiments of the invention provide a filtration system comprising a filter tank. In some embodiments, at least portions of an inlet pipe and an outlet manifold can be positioned within the filter tank. At least one manifold assembly can be coupled to the outlet manifold and also can be positioned within the filter tank. In some embodiments, the manifold assembly can include at least one first aperture, at least one second aperture, and at least one first cavity positioned within the manifold assembly. In some embodiments, the second aperture can fluidly connect the first cavity and the outlet manifold. Also, at least one filter can be coupled to the manifold assembly so that the first aperture fluidly connects the filter to the first cavity.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: July 1, 2014
    Assignee: Porous Media Corporation
    Inventors: Ralph Fuller, Mark Mickan
  • Patent number: 8480893
    Abstract: A gravity-flow water purifier includes a treatment tank, a water yielding pipe, a filter unit, and a sliding sleeve unit. The treatment tank includes a tank wall, an insertion hole, a receiving chamber, and at least two slide rails provided on the inner surface of the tank wall. The sliding sleeve unit includes a reticulated frame in which the filter unit is disposed. In addition, at least two sliding blocks are provided on the outer periphery of the frame. The filter unit is installed in a bottom portion of the treatment tank so that a gravity flow through the filter unit is generated by the water level in the treatment tank. Cooperation between the sliding blocks and the slide rails allows the sliding sleeve unit and the filter unit to be easily installed in and removed from the treatment tank, thereby facilitating the cleaning and replacement of filter elements.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: July 9, 2013
    Assignee: New Century Membrane Technology Co., Ltd.
    Inventor: Chi-Chang Kuo
  • Publication number: 20130105411
    Abstract: A filter module (1) for disposable use with a closed and at least partially flexible, preferably expandable casing (3) as filter housing (2), a non-filtrate space (9) within the closed casing (3) and at least one first opening (10) through the casing (3) to the non-filtrate space (9), at least one second opening (8) for conducting the filtrate away through the casing (3) and one or more disc-like filtering elements (14) which are accommodated in the casing (3) and the interior of which is connected to the second opening (8), wherein a negative pressure in relation to the normal atmosphere of the surroundings prevails within the casing (3).
    Type: Application
    Filed: May 31, 2011
    Publication date: May 2, 2013
    Applicant: FILTROX AG
    Inventor: Werner Loser
  • Publication number: 20130092620
    Abstract: A grafted nonwoven substrate is disclosed having average fiber sizes of 0.7 to 15 microns, and a void volume of 50 to 95%, and a polymer comprising cationic aminoalkyl(meth)acryloyl monomer units grafted to the surface of the nonwoven substrate. The article may be used as a filter element to purify or separate target materials, such as oligonucleotides or monoclonal antibodies (MAb), from a fluid mixture.
    Type: Application
    Filed: December 7, 2012
    Publication date: April 18, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: 3M INNOVATIVE PROPERTIES COMPANY
  • Patent number: 8354026
    Abstract: A center tube is disclosed which allows a draw solution to flow through all membrane elements in a membrane system in parallel. The center tube may include a cylindrical wall with two open ends and a barrier element there between separating an upstream chamber and a downstream chamber within the cylindrical wall. At least one non-perforated bypass tube may be located substantially within the cylindrical wall, which extends a length of the downstream chamber and/or the upstream chamber so that the upstream chamber is configured to communicate with a second upstream chamber of a second center tube and/or the downstream chamber is configured to communicate with a second downstream chamber of the second center tube.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: January 15, 2013
    Assignee: Hydration Systems, LLC
    Inventor: John R. Herron
  • Publication number: 20120234757
    Abstract: Intravenous fluid filter devices including a filter comprising spaced apart first and second filter elements comprising hydrophilic membranes and providing inside-out flow, and methods of using the devices, are disclosed.
    Type: Application
    Filed: March 14, 2011
    Publication date: September 20, 2012
    Applicant: PALL CORPORATION
    Inventors: Charles J. Martin, Jeffrey J. Toma
  • Publication number: 20120211411
    Abstract: An extended area filter is provided. The extended area filter has sheets of a filter media configured for increased filter media surface area. A plurality of filter media tubes are position in a concentric arrangement about a longitudinal axis of the filter, defining annular inlet volumes and annular outlet volumes, the annular inlet volumes receiving an unfiltered fluid, and the outlet volumes receiving a filtrate passed through the tubes of filter media. A filter apparatus configured for filtering a contaminated fluid and employing extended area filters of the invention is also provided.
    Type: Application
    Filed: February 21, 2011
    Publication date: August 23, 2012
    Applicant: PUROLATOR FACET, INC.
    Inventor: Sam A. Hopkins
  • Publication number: 20120211408
    Abstract: An extended area filter is provided. The extended area filter has sheets of a filter media configured for increased filter media surface area. A plurality of filter media tubes are position in a concentric arrangement about a longitudinal axis of the filter, defining annular inlet volumes and annular outlet volumes, the annular inlet volumes receiving an unfiltered fluid, and the outlet volumes receiving a filtrate passed through the tubes of filter media. Internal support elements suitable for placement within the outlet volumes are also provided. A filter apparatus configured for filtering a contaminated fluid and employing extended area filters of the invention is also provided.
    Type: Application
    Filed: July 19, 2011
    Publication date: August 23, 2012
    Applicant: PUROLATOR FACET, INC.
    Inventor: Sam A. Hopkins
  • Patent number: 8187410
    Abstract: The present invention purposes to provide a hollow fiber membrane module that minimizes the error rate in a manufacturing process thereof, disperses weight by separating an enlarged hollow fiber membrane module into a plurality of small modules, and provides a manufacturing method thereof. The present invention includes a central water tube having a plurality of inlets formed in the circumferential direction thereof, a central air tube provided in the central water tube, a plurality of housings longitudinally provided in the circumferential direction of the central water tube, a hollow fiber membrane provided in the respective housing and in which water is treated by difference of pressure, a fixing part fixing the lower part of the hollow fiber membrane to the housing, and a collector provided in the lower part of the housing, a plurality of small modules being provided in the housing.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: May 29, 2012
    Assignee: Woongjin Coway, Co. Ltd.
    Inventors: Soo-Hong Noh, Oh-Sung Kwon, So-Dam Yoon, Hee-Sung Yoon, Hyung-Mo Yang
  • Patent number: 8128824
    Abstract: A filter module comprises a non-filtrate draining spacer element, a filter layer, a filtrate draining spacer element, a filter layer, a non-filtrate draining spacer element, a filter layer, and a filtrate draining spacer layer stacked on one another in an axial direction, wherein at least some of the draining spacer elements comprise connecting means around the outer circumference to compress and seal off the filter layers between the draining spacer elements.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: March 6, 2012
    Assignee: Pall Corporation
    Inventors: Wolfgang Diemer, Martin Zeiler, Georg Schnieder, Gerhard Strohm
  • Patent number: 8128823
    Abstract: A fluid treatment assembly defines a treatment chamber and includes a treatment sub assembly positioned in an assembled condition in the treatment chamber. The treatment sub assembly includes a plurality of treatment members. The treatment assembly is arranged so that in use a fluid for treatment flows through the treatment members.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: March 6, 2012
    Assignee: Fairey Industrial Ceramics Limited
    Inventors: Andrew Christopher Clark, Fredrick John Burton
  • Patent number: 8105486
    Abstract: A water-cleaner includes a bowl, a tank, a tube, a filtering unit, at least one sleeve, a cover, an exhaust unit and a valve. The tank includes an aperture defined in a lower portion. The tank is located on the bowl. The tube includes apertures transversely defined therein. The tube is inserted in the tank. The filtering unit includes filtering bags stacked on one another and located around the tube. Each of the filtering unit includes an exit in communication with related ones of the apertures of the tube. The sleeve is located around the tank and movable between first and second positions. In the first position, the sleeve and the tank together define a space for containing raw water. The cover is located on the sleeve. The exhaust unit is arranged between the sleeve and the cover. The valve is located in the aperture of the tank.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: January 31, 2012
    Assignee: New Century Membrane Technology Co., Ltd.
    Inventor: Chi-Chang Kuo
  • Publication number: 20110284451
    Abstract: In a spacer element for guiding a flow medium in apparatus for filtering and separating the flow medium by reverse osmosis and ultrafiltration wherein filter elements are disposed between adjacent spacer elements which are disc-shaped and each has a central opening with a plurality of spaced openings disposed around the central opening for conducting the flow medium through the spacer element, a plurality of projections extend from the surfaces of the spacer element and have support areas formed at their tops which are oriented essentially parallel to the side surfaces of the spacer element.
    Type: Application
    Filed: August 3, 2011
    Publication date: November 24, 2011
    Inventor: Wilhelm HEINE
  • Patent number: 8048296
    Abstract: An apparatus for filtering liquid that includes a filter having an external surface; a rotatable shaft extending through the filter; and a movable member coupled to the rotatable shaft. The movable member is configured to impart a suction force at various locations across the external surface of the filter. The movable member has a trailing portion that extends further than the leading portion in the direction toward the filter.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: November 1, 2011
    Inventor: Jay Stevens
  • Publication number: 20110253616
    Abstract: The present invention discloses a membrane stack comprising a first and second membrane layers, and a spacer layer disposed between said first and second membrane layers, said membrane stack configured such that fluid passes through said membrane stack in a direction substantially perpendicular to the plane of said membrane layers and said spacer layer. The application also discloses a module comprising a membrane as described above, said module having a fluid flow path that is substantially perpendicular to the plane of the major surface of the membrane and spacer layers ins aid membrane stack.
    Type: Application
    Filed: June 27, 2011
    Publication date: October 20, 2011
    Applicant: Natrix Separations Inc.
    Inventors: Ronald F. Childs, Elena N. Komkova, Lisa Crossley, Alicja M. Mika
  • Patent number: 8002994
    Abstract: The present invention relates to a method of treating lime mud slurry being generated in a causticizing process in a pulp mill in a disc filter, in which method the lime mud is fed in the filter, thickened on the filter discs and removed from the filter discs. The lime mud is treated in at least two stages in one and the same disc filter in such a way that the lime mud slurry entering the filter is fed onto only a part of the filter discs, on which lime mud is thickened and removed from the discs, and the removed lime mud is re-slurried in liquid, and the lime mud slurry thus obtained is fed onto a second part of the filter discs, on which lime mud is thickened and removed from the filter and led into a subsequent process stage. The invention also relates to an apparatus.
    Type: Grant
    Filed: November 24, 2005
    Date of Patent: August 23, 2011
    Assignee: Andritz Oy
    Inventors: Holger Engdahl, Jouni Jäntti, Markku Lankinen, Antti Mattelmäki, Simo Suutari, Mika Kottila
  • Publication number: 20110097223
    Abstract: An oil filter for use in an electric motor forming part of a downhole device such as an ESP, comprising a two-part filter including a first part formed from a porous material which acts to filter solid particulate material from the motor oil, and a second part comprising a sorbent for removing aqueous liquids from the motor oil.
    Type: Application
    Filed: January 31, 2008
    Publication date: April 28, 2011
    Applicant: Schlumberger Technology Corporation
    Inventors: Stanislav Nikolaevich Verichev, Jacques Orban, Evgeny Mikhailovich Sviridov
  • Patent number: 7848475
    Abstract: A strainer for an emergency core cooling system (ECCS) in a nuclear power plant comprises a perforated strainer element that is immersed in a reservoir of cooling water, which is drawn through the strainer element into the emergency core cooling system. The side of the strainer element in contact with the cooling water has a contoured configuration for disrupting the formation of a flat bed of fibrous material that can trap small particulate material intended to pass through the strainer element. Incorporating this strainer element into an ECCS strainer enables the strainer to be made more compact, because the debris bed need not be spread over an unduly large area to prevent excessive head loss from the debris load in the event of a reactor loss of coolant accident. The strainer also incorporates a modular construction that uses individual strainer disc modules. Each disc module includes a perforated first disc part having a central opening and a perforated second disc part also having a central opening.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: December 7, 2010
    Assignee: Continuum Dynamics, Inc.
    Inventors: Andrew E. Kaufman, Alan J. Bilanin
  • Publication number: 20100288690
    Abstract: A filtration cartridge (20) is provided comprising one or a stack of filtration units (26) sealed to each other at their inner periphery and to end caps (22, 24) eliminating the need for a housing surrounding the stack. Fluid pathways are provided so that filtration of all incoming feed is assured prior to passing from the cartridge as filtrate. The filtration cartridge can be provided with a single outlet (30).
    Type: Application
    Filed: September 16, 2008
    Publication date: November 18, 2010
    Applicant: Millipore Corporation
    Inventor: Kevin Rautio
  • Publication number: 20100264100
    Abstract: A filter is provided comprising a filter media element enclosed by an impermeable bag with inlet and outlet ports provided for flow into and out of the bag and through the filter media element contained in the bag. The bag may be constructed of a sheet of plastic material of multiple layers. The filter element may be a stack of filter media disks for depth filtration and adsorption. The filter provides for cleanly change out, with unfiltered fluid being contained in the bag on the upstream side of the filter element within the bag.
    Type: Application
    Filed: April 16, 2009
    Publication date: October 21, 2010
    Applicant: Purolator Liquid Process, Inc.
    Inventors: Paris Rivera, Pete Florez, Richard Johnson
  • Patent number: 7794594
    Abstract: The invention relates to a filter module (1) comprising filters layers (4a, b) made of a filter medium, especially comprising filter layers made of filter strata. Said filter layers alternate with layers made of draining spacer elements 910, 10a, b, 20), the first and last layer of the filter module (1) consisting respectively of a draining spacer element (10a, b, 20). The draining spacer elements respectively and mutually comprise flow elements (12a, b) and sealing elements (11a, b) for the filtrate chamber and the non-filtrate chamber (40, 41). Means are provided for the mutual connection thereof. The aim of the filter module (1) is to combine the advantages of known filter modules with improved sealing at the edges of the filter layers, and to make the filter module backwashable. The filter module (1) comprises draining spacer elements (10, 10a, b, 20) which are embodied in such a way that they enable the filter layers to be pressed in a sealing manner.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: September 14, 2010
    Assignee: Pall Corporation
    Inventors: Wolfgang Diemer, Martin Zeiler, Georg Schnieder, Gerhard Strohm
  • Patent number: 7758747
    Abstract: A modular filter system for use within a pollution removal structure. The system includes a plurality of modular filters that can be nested together forming a common passageway that passes through all of the nested filters. With normal runoff, the water passes laterally through the filters and enters the common passageway to exit the structure. In the event of a high flow of runoff, an overflow pipe conveys water directly to a downstream storm drain by-passing the filter system. The overflow is created by either: a) allowing the water to rise above the upper surface of the upper modular filter and directly into the common passageway or b) by overflow pipes which connect to a downstream pollution removal structure; or a combination of paths a) and b). By using nested filters, the number of filters nested together can be customized in accordance with the depth of the particular storm drain.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: July 20, 2010
    Inventor: Graham Bryant
  • Patent number: 7731849
    Abstract: A filter module includes an axially extending central channel, a first hollow adapter having an interior through which the central channel extends, a second hollow adapter having an interior through which the central extends, one or more filter cells positioned between the first and second adapters and around the central channel, and an enclosure. The enclosure has a first retainer ring mounted around the first adapter, a second retainer ring mounted around the second adapter, and an envelope which is sealed to the first and second retainer rings and extends around the one or more filter cells.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: June 8, 2010
    Assignee: Pall Corporation
    Inventors: Wolfgang Diemer, Martin Zeiler
  • Publication number: 20100012572
    Abstract: The present invention relates to a disc-shaped filter element and to a method to provide a disc-shaped filter element. A disc-shaped filter element has a diameter K, and comprises a first and a second ring-like shaped, liquid permeable support member having an outer edge having a diameter Ds and an inner central edge, having a largest width Ws. The disc-shaped filter element comprises a first and a second ring shape-like filter membrane, the first filter membrane being in contact with the first surface of the first support member, the second filter membrane being in contact with the first surface of the second support member. The outer edges of the first filter membrane, the second filter membrane, the first support member and the second support member are liquid tight fixed to each other. The disc-shaped filter element further comprises a hub having a central void space, an outer wall, at least one channel extending from this void space to this outer wall and a coupling means.
    Type: Application
    Filed: May 31, 2007
    Publication date: January 21, 2010
    Applicant: NV BEKAERT SA
    Inventors: Frank Verschaeve, Frank Vanacker
  • Publication number: 20090314727
    Abstract: A primary and secondary filter are combined into a single housing, and two elements are combined into a single element. This combination is useable in any system that has a filter upstream of a pump and a filter downstream of a pump. The example described is a fuel system.
    Type: Application
    Filed: February 6, 2007
    Publication date: December 24, 2009
    Applicant: Donaldson Company, Inc.
    Inventors: John R. Hacker, Jodi Billy
  • Patent number: 7575678
    Abstract: A portable water purification device includes a base, a fixed sleeve, a tube, a filtering unit, and a movable sleeve. The base includes a channel for providing filtered liquid. The fixed sleeve is fixed on the base and includes a first peripheral wall and a first axial hole. The tube on where the filtering unit is mounted is secured on the base and held in the first axial hole to define a penetrated hole communicating with the channel. The movable sleeve is mounted on an external surface of the fixed sleeve, and slid between a first position away from the base and a second position adjacent to the base. The movable sleeve includes a second peripheral wall and a second axial hole whereby the first axial hole communicates with the second axial hole to define a containing room when the movable sleeve is located on the first position.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: August 18, 2009
    Assignee: New Century Membrane Co., Ltd.
    Inventor: Chi-Chang Kuo
  • Patent number: 7556156
    Abstract: A filtering sector (1) provided with two generating elements (2), obtained preferentially of polymeric material highly resistant to abrasion of mining products finely dispersed in the liquid filtrate, drained through the bi-foliar permeable film element (3), which covers the two grating elements (2), which are provided with lowered cylindrical holes (4) distributed along its extension, a par of grating elements (2) this one united through self-locking pins (5) which receives internally, through its frontal end, a locking counter-pin (11). Each grating element (2) formed by perimeter element (16) has a large edge (21) and, in the internal funneling of the grating elements (2), inserts (26), preferentially elastomeric or polymeric of high resistance to abrasion of the minerals finely disperse in the drained filtrate.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: July 7, 2009
    Inventor: Paulo Eduardo Vasquez Lovizzaro
  • Publication number: 20090152180
    Abstract: A large scale membrane separating installation wherein a cleaning chemical liquid flows to membrane units through a header and branch pipes. A cleaning chemical liquid distribution unit comprises the header and the branch pipes having a diameter smaller than that of the header. The cleaning chemical liquid distribution unit comprises a pipeline configuration uniformly distributing the cleaning chemical liquid supplied to the membrane units.
    Type: Application
    Filed: October 24, 2005
    Publication date: June 18, 2009
    Inventors: Kazuhisa Nishimori, Taichi Uesaka, Tatsuya Uejima, Hua Qiang Ge, Yasunobu Okajima, Tomonori Matsuda, Toshio Tanno, Youjiro Sakamoto
  • Patent number: 7520392
    Abstract: A liquid filter element frame (7) is provided comprising an elongate injection moulded body, conveniently composed of a series of collinear injection moulded units (13). The frame has a plurality of support ribs (14) radiating from a central axis thereof and a support collar (17) encircling the outer edges of the ribs at the operatively upper end. The collar has formed integral therewith a plurality of radially inwardly directed support rails (18) having inner ends cooperating with the moulded body between adjacent support ribs thereof. Preferably, the collar has a number of inwardly extending support rails equal to the number of radially extending support ribs with the inner edges (19) of the support rails being received neatly in a corner formed between each pair of adjacent support ribs. The invention also provides a liquid filter including filter elements having such frames.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: April 21, 2009
    Assignee: Jonathan Schewitz Trust
    Inventor: Jonathan Schewitz
  • Publication number: 20080283460
    Abstract: The invention relates to an arrangement and a device for filtering a fluid, particularly for plastic processing plants, wherein the pressure drop, or the flow rate reduction, created by the withdrawal of material from the process is sensitively balanced in that pressure constancy and flow rate constancy are achieved at the discharge duct (3).
    Type: Application
    Filed: July 6, 2007
    Publication date: November 20, 2008
    Applicant: KREYENBORG VERWALTUNGEN UND BETELIGUNGEN GMBH & CO., KG
    Inventor: Stefan Woestmann
  • Publication number: 20080245720
    Abstract: A filter housing and filter cartridge engagement structure comprising a housing having at least one ramp adapted to engage lugs of the at least one filter cartridge.
    Type: Application
    Filed: March 13, 2008
    Publication date: October 9, 2008
    Inventors: Howard D. Hutchinson, Mahesh Z. Patel
  • Publication number: 20080190837
    Abstract: A filter module includes an axially extending central channel, a first hollow adapter having an interior through which the central channel extends, a second hollow adapter having an interior through which the central extends, one or more filter cells positioned between the first and second adapters and around the central channel, and an enclosure. The enclosure has a first retainer ring mounted around the first adapter, a second retainer ring mounted around the second adapter, and an envelope which is sealed to the first and second retainer rings and extends around the one or more filter cells.
    Type: Application
    Filed: March 25, 2008
    Publication date: August 14, 2008
    Applicant: PALL CORPORATION
    Inventors: Wolfgang Diemer, Martin Zeiler
  • Patent number: 7396464
    Abstract: The invention concerns a device for the separation of substances, in particular of solid substances, liquid phases of varied density and/or of gases, from a liquid, by rotation with several filtering elements, which permit the filtered liquid to pass through and which are rotatably supported around a rotational axis inside of a housing, said housing exhibiting an inlet opening for the liquid, at least one discharge opening for the heavy substances separated by rotation and at least one discharge opening for the filtered liquid. In accordance with the invention, a throughflow is provided, in the region or in the proximity of the rotational axis of the filtering elements, for substances exhibiting a density lower than that of the liquid.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: July 8, 2008
    Assignee: Fraunhofer-Gesellschaft zur Forderung Der Angewandten Forschung E.V.
    Inventors: Werner Sternad, Walter Trosch, Lothar Schreiner
  • Patent number: 7357866
    Abstract: The invention concerns a module for filtering media. More particularly, the invention concerns a module for filtering fluids and including one or more filter cells stacked on top of one another. The invention also relates to an installation set for the installation of at least one such filter module in a filter housing, as well as to a filter device with a filter housing, in which the filter module or the filter modules is/are installed together with the installation set.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: April 15, 2008
    Assignee: Pall Corporation
    Inventors: Wolfgang Diemer, Martin Zeiler