Plural Separate Media Patents (Class 95/286)
  • Patent number: 9234830
    Abstract: A warehouse system and method for detecting air particles in a warehouse are disclosed. The warehouse system includes storage locations, air filters, a cartridge, and a control base. The air filters are correspondingly arranged on outer sides of each storage location. A detecting module of the cartridge detects the air particles on a surface of corresponding air filter of the abnormal storage locations. The detecting module further calculates a radius of the air particles and transmits the radius of the air particles to the control base. The control base determines if the corresponding air filter of the abnormal storage locations has leaked. The detecting process of the claimed invention is safer, more precise and convenient.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: January 12, 2016
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Chenyangzi Li, Chunhao Wu, Kunhsien Lin, Minghu Qi, Yongqiang Wang, Zenghong Chen, Yunshao Jiang, Zhenhua Guo, Zhiyou Shu, Guokun Yang
  • Patent number: 9192886
    Abstract: A cyclone for a cyclone mist eliminator. The cyclone has an inner wall enclosing an inner chamber having an inlet end and an opposed outlet end, an outer wall surrounding and spaced outwardly from the inner wall to create an outer chamber in a spacing between the inner wall and the outer wall, openings foamed in the inner wall to permit fluid in the inner chamber to pass through the openings and into the outer chamber, a swirler positioned at the inlet end of the inner chamber, and a fiber pad positioned in the outer chamber.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: November 24, 2015
    Assignee: Koch-Glitsch, LP
    Inventors: Izak Nieuwoudt, Charles A. Griesel
  • Publication number: 20150135947
    Abstract: Certain embodiments herein relate to systems and methods for managing turbine intake filters. In one embodiment, a system can include at least one memory configured to store computer-executable instructions and at least one control device configured to access the at least one memory and execute the computer-executable instructions. The instructions may be configured to receive information associated with a filter and identify the filter based at least in part on the information received. The instructions may be further configured to pulse the filter based at least in part on the information received.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Inventors: Paul Sherwood Bryant, Michelle Fullerton Simpson
  • Publication number: 20150114229
    Abstract: A method and system for online filter element replacement are provided. The system includes a filter chamber and a tubesheet dividing the filter chamber into a dirty air compartment and a clean air compartment, the tubesheet including a plurality of apertures therethrough. The system also includes a plurality of filter elements positioned in the dirty air compartment and coupled to the tubesheet in flow communication with a respective one of the plurality of apertures such that air entering the clean air compartment from the dirty air compartment passes through at least some of the plurality of filter elements and respective apertures and a shutter operatively positioned in the clean air compartment and configured to selectably cover at least one of the plurality of apertures.
    Type: Application
    Filed: October 29, 2013
    Publication date: April 30, 2015
    Applicant: BHA Altair, LLC
    Inventors: Susanta Kumar Rout, Siddharth Girishkumar Upadhyay, Stephen David Hiner, Etienne René Jarrier
  • Patent number: 9010098
    Abstract: The present disclosure is directed to an after-treatment device. The after-treatment device may have a center plenum configured to be fluidly connected to an engine. The after-treatment device may also have a filter bank having a plurality of filter assemblies. Each filter assembly may have an inlet fluidly connected to the center plenum. The inlet may be oriented orthogonal to the center plenum. Each filter assembly may also have an outlet. Further, the after-treatment device may have an exhaust plenum fluidly connected to the outlet. The exhaust plenum may be oriented orthogonal to the outlet. The exhaust plenum may also have an outer wall disposed parallel to and located at a predetermined distance from the outlet.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: April 21, 2015
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Pradeep Ganesan, Satyajit Gowda
  • Patent number: 8986432
    Abstract: Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: March 24, 2015
    Assignee: Hollingsworth & Vose Company
    Inventors: John A. Wertz, David T. Healey, William S. Freeman, John L. Manns, Mark Rowlands
  • Patent number: 8968445
    Abstract: The present invention provides regenerable pleated media and filter elements and combinations thereof for use in a clean room environment for removal of airborne molecular contamination. Disclosed is a pleated filter media for a clean room environment wherein the pleated filter media comprises at least an adsorbent first layer of activated carbon or polymer wherein said activated carbon or polymer together with fibers and/or an adhesion agent is enclosed between two second layers of non woven with a grid positioned on at least one side of either of the second layers or incorporated in the first layer for preventing deformation of the pleated filter media when regenerated by a heated air flow above 100° C. at 1 atm.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: March 3, 2015
    Assignee: Camfil AB
    Inventors: Christian Lindahl, Guillaume Gallet, Mikael Forslund
  • Publication number: 20140360371
    Abstract: A portable dust collector comprises a rectangular box-shaped housing containing a rectangular box shaped filter chamber having a dust collection volume in a lower portion thereof and providing plenums for operative gas circulation in a compact environment. The filter chamber shares a portion of the floor with the housing and has a pair of internal parallel sidewalls spaced inwardly from the outside sidewalls of the housing. The internal sidewalls define a plurality of filter chamber dirty gas inlets located just under an apertured cell plate from which the filters hang. The system is provided with a pulse jet cleaning system located in the clean air plenum above the cell plate.
    Type: Application
    Filed: June 11, 2013
    Publication date: December 11, 2014
    Inventor: MICHAEL W. SEITZ
  • Publication number: 20140262757
    Abstract: A filter structure and method of filtration is disclosed for use in an electrolysis fuel cell system that is designed to produce hydrogen and oxygen (HHO) gas on-demand and to supply these gasses into the combustion chambers of internal combustion engines. The filter separates residual fluids and byproducts from HHO gas that is generated by the hydrogen on demand system, and is designed to be utilized with an electrolyte fluid reservoir; a pump and heat exchanger; and a uniquely-configured electrolyzer. The filter structure is multi-stage, and the disclosed method involves porting the HHO gas and byproducts through each filter stage separately to accomplish improved filtration.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: NRG LOGISTICS, LLC
    Inventor: DAVID TODD FORBES
  • Patent number: 8834611
    Abstract: A method for air filtration having a plurality of interlocking filters for use in an HVAC system or in other air filtration systems. Each interlocking filter can have a pleated filter media, a first frame, a second frame for supporting the first frame, an adhesive to connecting the pleated filter media to the first frame and the first frame to the second frame, and a one piece non-rigid flexible integral locking mechanism for connecting together the interlocking filters without clips or glue in a quick connect and quick disconnect manner.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: September 16, 2014
    Inventor: Anthony Nicholas Dimicelli
  • Patent number: 8808416
    Abstract: A filtration system comprising at least one filter element, at least a first and a second filter media that are different to one another and are arranged in a parallel relationship, wherein fluid flow through the filtration system comprises a first fluid flow portion that flows through the first media and a second fluid flow portion that flows through the second media.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: August 19, 2014
    Assignee: BHA Altair, LLC
    Inventors: Steve David Hiner, Paul Richardson, Paul Bryant
  • Patent number: 8801825
    Abstract: Combustion turbine air intake filter assemblies, their components, and methods of use are disclosed. In certain embodiments, the assemblies may be useful, inter alia, for extending high efficiency filter life, reducing turbine downtime for filter assembly changeouts, or adjusting filter assemblies to address changing local conditions after the assemblies have been put into service.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: August 12, 2014
    Assignee: Florida Power & Light Company
    Inventors: Robert Jacob Sessions, Martin P. Domenech, James A. Keener, William A. Spanks, Jr.
  • Patent number: 8784539
    Abstract: The invention relates to diesel soot particulate filter cartridge having a central filter cartridge axis. The filter cartridge has a radial flow. The filter cartridge comprises a porous structure. The porous structure is coiled around the central filter cartridge axis. The porous structure comprises non-sintered metal fibers, said fibers having a roughness being higher than 1.7. The invention further relates to a method of manufacturing a diesel soot particulate filter cartridge. Furthermore the invention relates to a multicartridge diesel soot particulate filter. The flow through the multicartridge diesel soot particulate filter is axial while the flow through the filter cartridges is radial.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: July 22, 2014
    Assignee: NV Bekaert SA
    Inventors: Inge Schildermans, Johan Vandamme, Frank Verschaeve
  • Patent number: 8715399
    Abstract: A filter cartridge which includes a filter medium having a cylindrical segment shape and a channel disposed within the filter medium for receiving fluid filtered through the filter medium. A method of increasing a filter medium surface area of a filter or lowering pressure drop across the filter that has a plurality of filter cartridges disposed in a filter vessel. The method includes removing at least one filter cartridge from the filter vessel and replacing the removed filter cartridge with a filter cartridge that includes a filter medium having a cylindrical segment shape. The latter filter cartridge also includes a channel disposed within the filter medium for receiving fluid filtered through the filter medium.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: May 6, 2014
    Assignee: Peerless Mfg. Co.
    Inventor: Mark A. Buzanowski
  • Patent number: 8608817
    Abstract: Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: December 17, 2013
    Assignee: Hollingsworth & Vose Company
    Inventors: John A. Wertz, David Thomas Healey, William S. Freeman, John L. Manns, Mark Rowlands
  • Patent number: 8580014
    Abstract: A method of using a modular International Organization for Standardization (ISO) filter house for filtering process fluids is provided. The filter house includes a self-contained rectangular cuboid enclosure having the outside dimension of a standard, transportable ISO shipping container. The filter house has apertures for fluid flow inlet and fluid flow outlet, and a filter element for removing impurities from the fluid flow. The method includes creating one standard filter house design to be used in any multiple to meet various flow requirements. The method further includes creating a common fluid connection between the filter houses and process equipment so that the filter houses operate in parallel. A kit of modular components for filtration of a fluid is also provided. The kit includes an external structure of an ISO shipping container, vanes to direct fluid flow, and a filter element.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: November 12, 2013
    Assignee: General Electric Company
    Inventors: Anthony Richard Pike, Alun Gareth Williams
  • Publication number: 20130291728
    Abstract: A method of using a modular International Organization for Standardization (ISO) filter house for filtering process fluids is provided. The filter house includes a self-contained rectangular cuboid enclosure having the outside dimension of a standard, transportable ISO shipping container. The filter house has apertures for fluid flow inlet and fluid flow outlet, and a filter element for removing impurities from the fluid flow. The method includes creating one standard filter house design to be used in any multiple to meet various flow requirements. The method further includes creating a common fluid connection between the filter houses and process equipment so that the filter houses operate in parallel. A kit of modular components for filtration of a fluid is also provided. The kit includes an external structure of an ISO shipping container, vanes to direct fluid flow, and a filter element.
    Type: Application
    Filed: July 1, 2013
    Publication date: November 7, 2013
    Inventors: Anthony Richard Pike, Alun Gareth Williams
  • Patent number: 8568516
    Abstract: A biosafety cabinet device includes one or more walls forming a housing, a work area contained within the housing, a filter in fluid communication with the work area for filtering fluid passing through and exiting the work area. The filter includes a primary filtration surface through which a majority of fluid being filtered by the filter passes. A filter removal device is configured to couple to the filter. The filter removal device includes a rigid barrier layer and one or more handling mechanisms adjoined with the rigid barrier layer and extending distal to the rigid barrier layer. When the filter removal device is securely coupled to the filter, the rigid barrier layer extends substantially across a non-peripheral portion of the primary filtration surface of the filter and allows passage of fluid from the work area through the primary filtration surface of the filter.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: October 29, 2013
    Assignee: The Baker Company, Inc.
    Inventors: Ronald W. Gingras, Christopher Hersey, Aaron Johnson, Robert E. Lloyd, Larry A. McCarthy
  • Patent number: 8545605
    Abstract: A fabric filter bag (50) and cage (10) system for use in a bag house (66) for industrial process gas stream particulate removal. The bag house (66) includes an inlet (68) for process gas flow into an interior space (65) thereof, at least one fabric filter bag (50) and cage (10) system within the interior space (65) for filtering the process gas as it flows therethrough, and an outlet (70) for flow of cleaned process gas out of the interior space (65) of the system. The subject fabric filter bag (50) and cage (10) system provides about an additional 14% filter material per bag as compared to like sized round filter bags, thereby effectively reducing the size of bag house (66) required to achieve a particular air to cloth (A/C) ratio. Reducing the size of the bag house (66) required to achieve a particular A/C ratio significantly reduces capital costs typically associated therewith.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: October 1, 2013
    Assignee: ALSTOM Technology Ltd
    Inventors: Michael T. Lambert, Frank J. Licavoli
  • Patent number: 8540791
    Abstract: Embodiments for a filter and method for fabricating the same are provide herein. In one embodiment, a filter is provided that includes a first end cap, a second end cap, at least a first filtration media element and at least a first brace. The first end cap has an air flow aperture formed therethrough. The first and second end caps define a central axis. The first filtration media element is coupled to the first and second end caps and has an orientation curved around the central axis. The brace separates a first closed edge of the filtration media element from a second closed edge of the filtration media element.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: September 24, 2013
    Assignee: Camfil Farr, Inc.
    Inventor: Lee Pendleton Morgan
  • Patent number: 8491691
    Abstract: An air filter cartridge has filter media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: July 23, 2013
    Assignee: Donaldson Company, Inc.
    Inventor: Thomas Donald Raether
  • Patent number: 8440001
    Abstract: Preferred embodiments of the invention relate to systems for removing dimethyl sulfoxide (DMSO) or related compounds, or odors associated with same. The systems include adsorbents, odor adsorbing fabrics, masks, clean air members and clean air supply assemblies.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: May 14, 2013
    Assignee: Abela Pharmaceuticals, Inc.
    Inventor: Colette Cozean
  • Patent number: 8440002
    Abstract: A filtration apparatus includes at least three filter elements for filtering fluid, and a frame having a pyramidal frustum configuration that has at least three sides. The frame includes a frame structure for supporting the filter elements at the sides such that the filtration apparatus has a pyramidal frustum configuration. The filtration apparatus may be part of a filtration assembly. The filtration apparatus may be utilized within an associated method.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: May 14, 2013
    Assignee: General Electric Company
    Inventors: Etienne Rene Pascal Jarrier, Paul Sherwood Bryant
  • Patent number: 8398753
    Abstract: The invention provides a system and method comprising an apparatus for removing contaminants from a gas in a semiconductor processing device, which can include a filter unit having at least two parallel filter stages located therein. The filter stages are designed to remove a least a portion of the contaminants present in the gas flowing through them. The apparatus can also include a flow controller for distributing the gas flow among the filter stages. In one embodiment, the controller may consist of a diffuser plate. The invention also provides a sampling tube orifice for gas flow control in a system or method of the invention. In another embodiment, an apparatus for removing contaminants from a gas in a clean room comprises a filter unit having at least two parallel filter stages, which are used to remove a portion of the contaminants in the gas as it passes through the apparatus.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: March 19, 2013
    Assignee: Entegris, Inc.
    Inventors: John E. Sergi, John Gaudreau, Oleg P. Kishkovich, William Goodwin, Devon A. Kinkead
  • Publication number: 20120304861
    Abstract: The present invention relates to device and method for reducing soot particles. The device for reducing soot particles includes a first filter provided to an exhaust gas flow passage through which exhaust gas from a diesel engine flows to have a predetermined volume of a plurality of grains to be operated as a volumetric filtration system, and a second filter provided to a predetermined position of the second filter to be operated as a surface filtration system.
    Type: Application
    Filed: December 10, 2010
    Publication date: December 6, 2012
    Inventor: In-Gweon Lim
  • Patent number: 8323384
    Abstract: An extended life filter element is provided that may at least double the service interval of a given filtration application utilizing the same or similar filter housing envelope provided. The filter element may include a more open pleated substrate with an efficiency layer and a prefilter on the upstream surface. The filter may be a foam sleeve. One exemplary application is for air filtration of air flow to electrical cabinets on locomotives.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: December 4, 2012
    Assignee: Clark Filter, Inc.
    Inventors: Ian Joseph Derstler, Richard Kurcina
  • Publication number: 20120285901
    Abstract: A filter includes a plurality of annular filter elements arranged in axially staggered relation. An axial flow path includes a plurality of flow path segments, some being filtered by a respective filter element, and others bypassing a respective filter element. Various combinations are provided.
    Type: Application
    Filed: February 15, 2012
    Publication date: November 15, 2012
    Applicant: CUMMINS FILTRATION IP INC.
    Inventors: Christopher E. Holm, Michael J. Connor, Peter K. Herman, Scott W. Schwartz
  • Publication number: 20120285324
    Abstract: A filter includes a plurality of annular filter elements arranged in axially staggered relation. An axial flow path includes a plurality of flow path segments, some being filtered by a respective filter element, and others bypassing a respective filter element. Various combinations are provided.
    Type: Application
    Filed: February 15, 2012
    Publication date: November 15, 2012
    Applicant: CUMMINS FILTRATION IP INC.
    Inventors: Christopher E. Holm, Michael J. Connor, Peter K. Herman, Scott W. Schwartz
  • Patent number: 8241406
    Abstract: In order to provide a device for separating wet paint overspray from a stream of crude gas containing overspray particles which includes at least two filter devices each of which has an inlet opening through which a partial stream of crude gas enters the respective filter device and each of which includes at least one filter element for separating the overspray from the partial stream of crude gas, which allows one to maintain the fluidity of the mixture including of filter aid material and wet paint overspray that has been cleansed from the filter elements in the filter aid material reservoirs in a simple and efficient manner, it is proposed that the device should comprise at least one reservoir for receiving material which has been cleansed from the filter elements of a plurality of filter devices and a mixing device for mechanically blending the cleansed material from a plurality of filter devices.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: August 14, 2012
    Assignee: Dürr Systems GmbH
    Inventor: Jürgen Weschke
  • Publication number: 20120174788
    Abstract: A filter element includes a holding frame with an intake opening, an air intake disposed on the intake opening, and an anti-twist mechanism configured such that the filter element is only insertable into a filter housing in one position. The anti-twist mechanism includes a body with two asymmetrically configured recesses extending along a longitudinal axis of the holding frame. The filter element also includes two bellows disposed on the holding frame, the bellows and holding frame delimiting a cavity.
    Type: Application
    Filed: January 9, 2012
    Publication date: July 12, 2012
    Applicant: Carl Freudenberg KG
    Inventors: Uwe Felber, Ulrich Stahl, Claudio Marin
  • Patent number: 8211215
    Abstract: An instrument gas conditioning system is provided. The system includes filtering, and optionally drying, a gas stream to obtain a filtered, and optionally dried, gas stream. The filtered, and optionally dried, gas stream is heated in a heater and then regulated through a regulator. The filtered, heated, regulated, and, optionally dried, gas stream may be used as instrumentation gas.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: July 3, 2012
    Assignee: RMS Controls, Inc.
    Inventors: Jeff Schott, Eric Almaraz
  • Patent number: 8197570
    Abstract: Embodiments for a filter and method for fabricating the same are provide herein. In one embodiment, a filter is provided that includes a first end cap, a second end cap, at least a first filtration media element and at least a first brace. The first end cap has an air flow aperture formed therethrough. The first and second end caps define a central axis. The first filtration media element is coupled to the first and second end caps and has an orientation curved around the central axis. The brace separates a first closed edge of the filtration media element from a second closed edge of the filtration media element.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: June 12, 2012
    Assignee: Camfil Farr, Inc.
    Inventor: Lee Pendleton Morgan
  • Patent number: 8187354
    Abstract: A composite fabric formed by depositing a web of nanofibers electroblown from a first polymer onto a first support web comprising fibers of larger average diameter than the nanofibers spun from a compatible material, in the absence of an adhesive between the webs, and solvent-bonding the webs together.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: May 29, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hyun Sung Lim, Hageun Suh, B. Lynne Wiseman
  • Publication number: 20120111199
    Abstract: The invention relates to diesel soot particulate filter cartridge having a central filter cartridge axis. The filter cartridge has a radial flow. The filter cartridge comprises a porous structure. The porous structure is coiled around the central filter cartridge axis. The porous structure comprises non-sintered metal fibers, said fibers having a roughness being higher than 1.7. The invention further relates to a method of manufacturing a diesel soot particulate filter cartridge. Furthermore the invention relates to a multicartridge diesel soot particulate filter. The flow through the multicartridge diesel soot particulate filter is axial while the flow through the filter cartridges is radial.
    Type: Application
    Filed: June 23, 2010
    Publication date: May 10, 2012
    Inventors: Inge Schildermans, Johan Vandamme, Frank Verschaeve
  • Publication number: 20120090469
    Abstract: The invention relates to a multicartridge diesel soot particulate filter (100) comprising a casing delimiting the outer boundary of a filter volume. The filter has a central filter axis (170). The casing has an inflow side and an outflow side defining an average flow direction being substantially parallel to the central axis. The filter volume is filled with at least two filter cartridges, each of these filter cartridges having a central filter cartridge axis (170). The central filter cartridge axis (170) of the filter cartridges is substantially parallel to the average flow direction of the filter. The filter cartridges comprise a porous structure (101) comprising metal fibers. The filter cartridges provide a radial flow direction through said porous structure (101). The flow through the multicartridge diesel soot particulate filter is axial while the flow through the filter cartridges is radial. The invention further relates to a method of manufacturing a multicartridge diesel soot particulate filter.
    Type: Application
    Filed: June 23, 2010
    Publication date: April 19, 2012
    Inventors: Inge Schildermans, Johan Vandamme, Frank Verschaeve
  • Patent number: 8152889
    Abstract: A filter media product and method of making the same wherein the filter media is pleatable and has at least one support scrim comprised of a melt bonded non-woven material or a fuse bonded non-woven material bonded to a layer of expanded polytetrafluoroethylene. The filter media may have a single support scrim with one or more layers and optionally may have a support scrim on both an upstream and downstream surface where both or neither support scrim is multilayered. The filter media may have an efficiency greater than, equal to, or less than HEPA.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: April 10, 2012
    Assignee: AAF-McQuay Inc.
    Inventor: Kyung-Ju Choi
  • Publication number: 20120079942
    Abstract: A filtration system comprising at least one filter element, at least a first and a second filter media that are different to one another and are arranged in a parallel relationship, wherein fluid flow through the filtration system comprises a first fluid flow portion that flows through the first media and a second fluid flow portion that flows through the second media.
    Type: Application
    Filed: September 27, 2011
    Publication date: April 5, 2012
    Inventors: Steve David HINER, Paul Richardson, Paul Bryant
  • Patent number: 8128829
    Abstract: Cross flow filter device comprising a longitudinal first filter element (1) having a first width (w1) and a longitudinal central axis (8), a longitudinal second filter element (2) having a second width (w2) and being longitudinally installed substantially concentrically inside said first filter element (1), a housing (3) surrounding said first filter element (1), said cross flow filter device having respectively a raw material inlet (4), a concentrate outlet (5), and a first filtrate outlet (6) connected to said first filter element (1). The ratio between the second width (w2) and the first width (w1) is 65%, preferably at least 70% and more preferably about 75%.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: March 6, 2012
    Assignees: Bekaert Advanced Filtration
    Inventors: Martin Eurlings, Philippe Albert, Stefan Vandendijk
  • Patent number: 8118919
    Abstract: An air filter comprising natural and or man made organza wherein the organza allows air to pass but prevents undesirable air particulates to pass and wherein the organza may be disposed over a frame and may include other mesh material.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: February 21, 2012
    Inventor: George W. Love
  • Patent number: 8105411
    Abstract: A system, in certain embodiments, includes a fluid filter that includes a first set of strips of a first filter material having a first density, and a second set of strips of a second filter material having a second density greater than the first density, wherein the first set and second set of strips are arranged in an alternating pattern to define a first filter layer. The system also includes a second filter layer comprising a third filter material having a third density greater than the second density, wherein the first filter layer is coupled to the second filter layer. In other embodiments, the system includes a fluid filter which includes a first filter material having a first density, a second filter material having a second density greater than the first density, and a third filter material having a third density greater than the second density.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: January 31, 2012
    Assignee: Illinois Tool Works Inc.
    Inventors: Nekheel Gajjar, Paul R. Micheli
  • Publication number: 20110290116
    Abstract: A filtration apparatus includes at least three filter elements for filtering fluid, and a frame having a pyramidal frustum configuration that has at least three sides. The frame includes a frame structure for supporting the filter elements at the sides such that the filtration apparatus has a pyramidal frustum configuration. The filtration apparatus may be part of a filtration assembly. The filtration apparatus may be utilized within an associated method.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 1, 2011
    Applicant: General Electric Company
    Inventors: Etienne René Pascal Jarrier, Paul Sherwood Bryant
  • Publication number: 20110233151
    Abstract: Cross flow filter device comprising a longitudinal first filter element (1) having a first width (w1) and a longitudinal central axis (8), a longitudinal second filter element (2) having a second width (w2) and being longitudinally installed substantially concentrically inside said first filter element (1), a housing (3) surrounding said first filter element (1), said cross flow filter device having respectively a raw material inlet (4), a concentrate outlet (5), and a first filtrate outlet (6) connected to said first filter element (1). The ratio between the second width (w2) and the first width (w1) is 65%, preferably at least 70% and more preferably about 75%.
    Type: Application
    Filed: June 2, 2011
    Publication date: September 29, 2011
    Inventors: Martin Eurlings, Philippe Albert, Stefan Vandendijk
  • Publication number: 20110197767
    Abstract: A portable dust collector comprises a rectangular box-shaped housing containing a rectangular box shaped filter chamber having a dust collection volume in a lower portion thereof and providing plenums for operative gas circulation in a compact environment. The filter chamber shares a portion of the floor with the housing and has a pair of internal parallel sidewalls spaced inwardly from the outside sidewalls of the housing. The internal sidewalls define a plurality of filter chamber dirty gas inlets located just under an apertured cell plate from which the filters hang. The system is provided with a pulse jet cleaning system located in the clean air plenum above the cell plate.
    Type: Application
    Filed: October 27, 2009
    Publication date: August 18, 2011
    Inventor: Michael W. Seitz
  • Patent number: 7998253
    Abstract: An air filtering unit for a factory includes: an entry duct; a flow expander section fluidly connected with the entry duct, the flow expander section including a flow distribution unit and a flow velocity reduction unit; a filter unit fluidly connected with the flow expander section, the filter unit having a plurality of filter bags, the filter bags being suspended from a tube sheet; and an exit duct fluidly connected with the filter unit. The flow distribution unit includes a series of flow distribution members positioned along a flow path, the flow distribution unit located and configured to substantially equally distribute an airstream along the length of the flow axis into a plurality of divided substreams. The flow velocity reduction unit includes a plurality of flow reduction members, each of the flow reduction members positioned and configured to confront at least one of the divided substreams and reduce the flow velocity thereof.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: August 16, 2011
    Assignee: Menardi-Mikropul LLC
    Inventor: William W. Gregg
  • Patent number: 7985343
    Abstract: Disclosed herein are modular filter assemblies having a plurality of stacked filter plates formed from a porous material. The filter plate can comprise a planar base portion from which a convoluted ridge wall, having a ridge outer side surface, a ridge inner surface, and a top ridge surface extends. A plurality of fluid inlet troughs and a plurality if fluid outlet troughs are defined by the ridge wall. Adjoining filter plates form a plurality of fluid inlet cavities defined by the fluid inlet trough of one filter plate and a portion of the bottom surface of the adjoining filter plate; and a plurality of fluid outlet cavities defined by the fluid outlet trough of the one filter plate and a portion of the bottom surface of the adjoining filter plate. In use, the plurality of fluid inlet cavities are in filtered communication with the plurality of fluid outlet cavities.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: July 26, 2011
    Assignee: Porex Corporation
    Inventors: Dean Haldopoulos, Benjamin Hirokawa
  • Patent number: 7972399
    Abstract: A fabric filter (1) has at least a first compartment (2) and a second compartment (4). A hopper (42) is adapted for fluidisation of dust collected in the compartments (2, 4) to form a bed (52) of fluidised dust. A partition wall (62) is located between the compartments (2, 4) to separate them from each other. A passage (68) is formed at a lower end (66) of the partition wall (62) such that fluidised dust may pass through said passage (68). The partition wall (62) is arranged to extend into the bed (52) of fluidised dust for forming a seal (74) even when one of the compartments (2, 4) has been shut off. When shutting off a compartment (4) the inlets and outlets to that compartment (4) are closed and the dust in the hopper (42) is fluidised to provide a seal (74) between the compartments (2, 4).
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: July 5, 2011
    Assignee: ALSTOM Technology Ltd
    Inventors: Stefan Ahman, Nils Bringfors
  • Patent number: 7967898
    Abstract: A method for cleaning a filter having Z-media includes providing a filter having Z-media and cleaning the media construction by directing a pulse of compressed gas into the media construction through the downstream flow face. Filter elements useable with such methods include elements made of Z-media. An example system utilizing the method includes a gas turbine air intake system.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: June 28, 2011
    Assignee: Donaldson Company, Inc.
    Inventors: Timothy D. Sporre, Jim C. Rothman, Michael W. Handley, Thomas D. Raether
  • Publication number: 20110146490
    Abstract: An extended life filter element is provided that may at least double the service interval of a given filtration application utilizing the same or similar filter housing envelope provided. The filter element may include a more open pleated substrate with an efficiency layer and a prefilter on the upstream surface. The filter may be a foam sleeve. One exemplary application is for air filtration of air flow to electrical cabinets on locomotives.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 23, 2011
    Applicant: CLARK FILTER, INC.
    Inventors: Ian Joseph Derstler, Richard Kurcina
  • Patent number: 7959705
    Abstract: A filter media product and method of making the same wherein the filter media is pleatable and has at least one support scrim comprised of a melt bonded non-woven material or a fuse bonded non-woven material bonded to a layer of expanded polytetrafluoroethylene. The filter media may have a single support scrim with one or more layers and optionally may have a support scrim on both an upstream and downstream surface where both or neither support scrim is multilayered. The filter media may have an efficiency greater than, equal to, or less than HEPA.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: June 14, 2011
    Assignee: AAF-McQuay Inc.
    Inventor: Kyung-Ju Choi
  • Patent number: RE44536
    Abstract: A filter includes at least two different adsorptive media. First, chemisorptive media, which is porous and includes an acidic functional group, is used to remove molecular bases, including ammonia, organic amines, imides and aminoalchols, from the atmosphere used in semiconductor fabrication and other processes that require uncontaminated gaseous environments of high quality. Second, physisorptive media is able to adsorb condensable contaminants, particularly those having a boiling point greater than 150 degrees C. The physisorptive media can include untreated, activated carbon.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: October 15, 2013
    Assignee: Entegris, Inc.
    Inventors: Oleg P. Kishkovich, Devon Kinkead, Anatoly Grayfer, William M. Goodwin, David Ruede