Concentric Filter Elements Patents (Class 210/338)
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Patent number: 11707914Abstract: Protective clothing materials and related methods and garments are provided. In some embodiments, a protective clothing material may comprise a fibrous layer that serves as a barrier to certain fluids (e.g., bodily fluids, water) and microbes. The impermeability of the fibrous layer may be due, at least in part, to the structural uniformity and/or relatively small pore size of the fibrous layer. In some embodiments, the fibrous layer may have a relatively high air permeability that imparts beneficial properties (e.g., relatively high air flow, breathability) to the protective clothing material without adversely affecting its protection rating. In certain embodiments, the protective clothing material may also comprise one or more coarse nonwoven webs that impart beneficial properties (e.g., splash resistance) to the protective clothing material.Type: GrantFiled: June 17, 2019Date of Patent: July 25, 2023Assignee: Hollingsworth & Vose CompanyInventors: Nagendra Anantharamaiah, Mark A. Gallimore
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Patent number: 11261793Abstract: A method of pumping fuel in a fuel system of a composite aircraft having a gas turbine engine includes feeding un-heated fuel from a fuel tank to the gas turbine engine, by using an ejector pump to draw the fuel from the fuel tank and feeding the fuel through an engine fuel pump within a main fuel line upstream of the gas turbine engine. Fuel from the main fuel line is bled and directed to the ejector pump via a motive flow pump assembly, the motive flow pump assembly including a motive flow pump generating a motive flow for the ejector pump. The bleed fuel flow is then passed through a hydrophobic fuel screen located upstream of the motive flow pump.Type: GrantFiled: September 30, 2019Date of Patent: March 1, 2022Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Harris Shafique, David Waddleton
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Patent number: 11143216Abstract: A filter subassembly, having a first screen comprising a fabric that has mesh elements, the mesh size of which determines how effectively particles are prevented from penetrating therethrough, wherein a second screen is provided at a distance from the first screen, and the two screens are arranged in series.Type: GrantFiled: August 29, 2019Date of Patent: October 12, 2021Assignee: Continental Teves AG & Co. OHGInventors: Christian Courth, Heiko Gastauer, Heiko Gensert, Christian Schulz
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Patent number: 11014026Abstract: The disclosure pertains to a spin-on fluid treatment device, including a treatment medium disposed within a housing, a top surface having an internally threaded bore and an outlet tube at least partially disposed inside said threaded bore in a concentric position. The outlet tube can have an externally oriented sealing portion for engaging with a complementary element of an inlet spud of an entity that receives said treated fluids. The outlet tube can be configured as an alignment feature to guide the treatment device onto the inlet spud during installation. The outlet tube can be configured with both an externally oriented sealing portion and an alignment feature. The disclosure also pertains to a system comprising a machine having a treatment device head and a spin-on fluid treatment device, a kit, a spin-on fluid filter cartridge, and a method of mounting a spin-on filter cartridge onto a filter head.Type: GrantFiled: August 10, 2018Date of Patent: May 25, 2021Assignee: Donaldson Company, Inc.Inventor: Gert Willems
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Patent number: 10843109Abstract: The present relates to an oil filtration system (1) comprising an oil filtration unit (2), an oil filter (13) having a central opening (15) extending along a central axis (B) of the oil filter (13), the oil filtration unit (2) being provided with at least one first physical structure (18,18?,18?) having a first cross-sectional shape and a predefined longitudinal length (x) in relation to the central axis (A) of the oil filtration unit (2), the oil filter (13) being provided with at least one second physical structure (23,23?,23?) having a second cross sectional shape and a predefined longitudinal length (y) in relation to the central axis (B) of the oil filter (13) and an inner or outer periphery of the second physical structure (23,23?,23?) being arranged to mate with the outer or inner periphery of the first physical structure (18,18?,18?) allowing the oil filter (13) to reach its correct insertion position in the oil filtration unit (2), where at least one of the end surfaces (28,29,31) of the oil filter (Type: GrantFiled: May 21, 2015Date of Patent: November 24, 2020Assignee: C.C. Jensen A/SInventor: Jens Fich
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Patent number: 10710048Abstract: A co-precipitation reactor with a continuous filtering system mounted, wherein the co-precipitation reactor includes a main body accommodating a reactant for reaction therein, an input unit inputting the reactant into the main body, and a filter unit installed in the main body to filter a precursor of the precursor generated by reacting with the reactant in the main body and a reaction solution.Type: GrantFiled: December 26, 2018Date of Patent: July 14, 2020Assignee: LG Chem, Ltd.Inventors: Hyun Uk Kim, Seong Bae Kim, Chang Jun Moon, Yi Rang Lim, Kyoung Wan Park, Eun Hee Kim
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Patent number: 10400147Abstract: A method for producing an active silicic acid solution in which the existing amount of foreign matters as plate-like fine particles is reduced and a method for producing a silica sol in which such foreign matters are reduced. The method fulfills the following condition: the existing amount of plate-like fine particles having a length of one side of 0.2 to 4.0 ?m and a thickness of 1 to 100 nm is measured to be 0% to 30% in accordance with measuring method A, the method including the steps of: preparing an active silicic acid solution by subjecting an alkali silicate aqueous solution having a silica concentration of 0.5% by mass to 10.0% by mass to cation-exchange to remove alkaline components; and filtering the active silicic acid solution through a filter whose removal rate of particles having a primary particle size of 1.0 ?m is 50% or more.Type: GrantFiled: September 14, 2012Date of Patent: September 3, 2019Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Kiyomi Ema, Noriyuki Takakuma, Tohru Nishimura, Naoki Kawashita, Kouji Yamaguchi
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Patent number: 10343931Abstract: In one example, a fluid container includes a reservoir that includes a reservoir wall. A cover is configured to engage the reservoir, and the cover includes a spout configured and arranged for fluid communication with the reservoir, and the spout is disposed at one end of the cover. The fluid container also includes a filter cage configured to releasably engage the cover in a location near the spout. When the filter cage is engaged with the cover, and the cover is disposed on the reservoir, a small gap is defined between the front of the spout and the front of the filter cage.Type: GrantFiled: September 27, 2016Date of Patent: July 9, 2019Assignee: Brita LPInventors: Nikhil P. Dani, Edward B. Rinker, Russell Bell
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Patent number: 10046981Abstract: The present disclosure concerns a filter device for filtering source water for the purpose of obtaining potable water; and further concerns a method for assembly of such a device.Type: GrantFiled: January 18, 2016Date of Patent: August 14, 2018Assignee: STRAUSS WATER LTD.Inventors: Haim Wilder, Eyal Krystal, Stanislav Ratner, Hella Frenkel
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Patent number: 10029199Abstract: The disclosure concerns air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided.Type: GrantFiled: May 27, 2016Date of Patent: July 24, 2018Assignee: Donaldson Company, Inc.Inventors: James R. Scott, Carolyn Finnerty, Steven Gieseke, Douglas Iddings, William Juliar, Gregory LaVallee
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Patent number: 9938155Abstract: To provide a method for producing an alkali silicate aqueous solution containing a reduced amount of foreign substance of plate-like fine particles and a method for producing a silica sol containing a reduced amount of foreign substance of plate-like fine particles. A method for producing an alkali silicate aqueous solution fulfilling the following condition: the existing amount of plate-like fine particles having a length of one side of 0.2 to 4.0 ?m and a thickness of 1 to 100 nm is determined to be 0 to 30%. The method for producing an alkali silicate aqueous solution includes the steps of adjusting a silica concentration of an alkali silicate aqueous solution to 0.5 to 10.0% by mass and filtering the alkali silicate aqueous solution through a filter having a removal rate of particles with a primary particle size of 1.0 ?m of 50% or more.Type: GrantFiled: April 20, 2015Date of Patent: April 10, 2018Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Kiyomi Ema, Noriyuki Takakuma, Tohru Nishimura, Naoki Kawashita, Kouji Yamaguchi
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Patent number: 9776108Abstract: The present inventions relate to water and wastewater treatment devices including stationary cloth filter media support structures which support structures also form the effluent plenum for the filtered influent.Type: GrantFiled: November 9, 2012Date of Patent: October 3, 2017Assignee: AQUA-AEROBIC SYSTEMS, INC.Inventors: Peter G. Baumann, Lloyd W. Johnson, David Smith, Eugen O. Bergmann
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Patent number: 9764288Abstract: In accordance with aspects and embodiments, a filtration system is provided comprising a membrane module comprising an upper header and a lower header, a plurality of hollow fiber membranes having an upper end potted in the upper header and a lower end potted in the lower head, a cage at least partially surrounding the plurality of hollow fiber membranes, and a screen in contact with and surrounding the cage, the filtration system further comprising an aeration cap coupled to the lower header of the membrane module. The screen may protect the hollow fiber membranes from damage from coarse contaminants contained in the feed liquid, may improve module integrity, and may improve the efficiency of the filtration system.Type: GrantFiled: March 15, 2013Date of Patent: September 19, 2017Assignee: Evoqua Water Technologies LLCInventors: Warren T. Johnson, Thomas W. Beck, Fufang Zha, Zhiyi Cao, Jessica Stiller, Bruce Biltoft
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Patent number: 9670888Abstract: One embodiment is a filter element including an outer filter media and an inner filter media. The outer filter media is operable to remove particulates present in a flow of fluid and/or coalesce water contained in the flow of fluid. The inner filter media is operable to remove particulates from the flow of fluid, separate water form the flow of fluid, and remove particulates from the flow of fluid. Other embodiments include unique apparatus, devices, systems, and methods relating to fuel filters and filtration. Further embodiments, forms, objects, features, advantages, aspects, and benefits of the present application shall become apparent from the detailed description and figures included herewith.Type: GrantFiled: September 5, 2013Date of Patent: June 6, 2017Assignee: CUMMINS FILTRATION IP, INC.Inventors: Zemin Jiang, Melvin Douglas McCormick, David P. Genter, Norman C. Blizard, Jeffrey A. Husband, Michael J. Connor, Wassem Abdalla, Barry M. Verdegan
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Patent number: 9126128Abstract: There is disclosed a material for separating a liquid from a mixture of at least two liquids, for example, for separating water from fuel. In one embodiment, the material comprises a fibrous substrate and carbon nanotubes, both of which have at least one functional group attached thereto. There is also disclosed a method for separating one liquid from another liquid using the disclosed material. In one embodiment, the method comprises flowing a mixture of liquids through the disclosed material, and either coalescing or separating at least one liquid by use of the carbon nanotubes.Type: GrantFiled: November 10, 2009Date of Patent: September 8, 2015Assignee: Seldon Technologies, Inc.Inventors: Vardhan Bajpai, Christopher H. Cooper
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Patent number: 8961791Abstract: The present relates to a molecular exchange device. In particular, the present invention relates to a molecular exchange device comprising an outer tube extending from an approximal end to a distal end of the device; an inner tube defining at least one fluid passageway, the inner tube positioned concentrically within the outer tube and the area between the inner and the outer tube defining at least one fluid passageway; and a projection positioned within the area between the inner and the outer tube, wherein the projection prevents displacement of the inner tube with respect to the outer tube.Type: GrantFiled: February 5, 2009Date of Patent: February 24, 2015Assignee: Probe Scientific LimitedInventors: Mark Thomas O'Connell, Stewart Jeffrey Block, Rodney Ruston
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Patent number: 8945388Abstract: A filter has first and second filter media (2, 3). The filter media define a flow space (4) between them receiving a device (5) for separation and flow guidance and dividing the flow space such that a functional space (25, 26) is disposed adjacent to the first or the second filter medium. The first filter medium (2) defines a hollow space (21) toward the outside, and the second filter medium (3) defines a hollow space (22) toward the inside. Each of the hollow spaces (21, 22) can be connected to at least one fluid duct (23, 24). The flow space (4) including the two functional spaces (25, 26) can be connected to at least one further fluid duct (27) that is separated in a fluid-tight manner from the other fluid ducts (23, 24).Type: GrantFiled: October 27, 2010Date of Patent: February 3, 2015Assignee: Hydac Filtertechnik GmbHInventor: Markus Dewes
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Patent number: 8932465Abstract: A filter within a filter cartridge design is described that includes a sealing structure on an endplate of an outer filter element. Generally, the sealing structure includes an annular flange on the endplate that can directly seal against an interior surface of a housing when the filter cartridge is assembled for use. During filtration, the annular flange prevents a working fluid from bypassing the outer filter element. The sealing flange can seal with the housing in a press fit engagement.Type: GrantFiled: November 27, 2012Date of Patent: January 13, 2015Assignee: Cummins Filtration IP Inc.Inventors: Aaron M. Wells, Terry W. Shults, Ismail C. Bagci, Dean Olson, Zemin Jiang, Kevin C. South, Peter K. Herman, Hendrik N. Amirkhanian, Jeffrey B. Sharp, David P. Genter, Norman C. Blizard, Melvin Douglas McCormick, Jeffrey A. Husband, Wassem Abdalla, Michael J. Connor, Barry M. Verdegan, Donna Butler, Chad T. Brummitt
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Patent number: 8911523Abstract: A water separating container for a motor vehicle is provided. An air stream sucked in from outside the vehicle passes through the water separating container, which separates water present in the air stream. The water separating container includes an air inlet having an air inlet opening and an air outlet having an air outlet opening. An impact wall for separating the water present in the air stream is disposed between the air inlet and the air outlet.Type: GrantFiled: June 19, 2012Date of Patent: December 16, 2014Assignee: GM Global Technology Operations LLCInventors: Guenther Marx, Helmut Nitzsche, Guenter Boersch
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Patent number: 8813356Abstract: A common mode filter is manufactured to include a coil part including an insulation layer and a conductor pattern formed in the insulation layer; and a magnetic substrate coupled to one surface or both surfaces of the coil part. The magnetic substrate includes: an electrostatic absorbing layer made of an electrostatic absorbing material; a magnetic layer provided on one surface or both surfaces of the electrostatic absorbing layer and made of a magnetic material; and an electrode provided between the magnetic layer and the electrostatic absorbing layer and made of a conductive material. Therefore, common mode filter may maintain high efficiency characteristics while preventing an electrostatic discharge phenomenon.Type: GrantFiled: August 9, 2012Date of Patent: August 26, 2014Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Sung Kwon Wi, Jeong Bok Kwak, Sang Moon Lee, Young Seuck Yoo, Yong Suk Kim
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Patent number: 8807345Abstract: A device, method, and system for analyzing aggregate are described. An exemplary device may include a housing with one or more grading screens. Aggregate and liquid may be received by a port within the housing. The liquid and any suspended fines, after passing through the one or more grading screens and aggregate, may be received into an observation container for observing the clarity of the liquid.Type: GrantFiled: February 7, 2012Date of Patent: August 19, 2014Assignee: Presby Patent TrustInventor: David W. Presby
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Publication number: 20140217007Abstract: The present invention provides a filtering apparatus with a hollow membrane module for draining off debris, comprising: an outer shell having a filtering chamber, a water outlet and a first passage; a filter unit inside the filtering chamber of the outer shell and comprising a hollow membrane module and a sleeve mounted on the hollow member module; wherein the sleeve comprises a plurality of through-holes and two end caps attached onto two lateral sides thereof respectively; and a cover on the outer shell and comprising a second passage. Therefore, when the cover is fastened onto the outer shell, the outer shell is clamped onto the two end caps on the filter unit and the perforations of the two end caps arranged corresponding to the first and second passages such that the draining off debris and dirt off the filtering apparatus via either the first or second passage thereof is achieved.Type: ApplicationFiled: February 6, 2013Publication date: August 7, 2014Inventor: HSIN TIEN CHIU
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Patent number: 8758612Abstract: Process and device for separating liquid from a multiphase mixture contained in a vessel and comprising solid particles and at least one liquid phase forming together at least one suspension, and a gas phase in which at least part of the mixture is circulated through at least one cross-flow filter located outside the vessel, therefore separating said part of the mixture into a filtered liquid and a concentrate.Type: GrantFiled: June 2, 2010Date of Patent: June 24, 2014Assignee: Solvay SAInventors: Jal Rustom Dadabhoy, Massimo Fedeli, Patrick Markus Dhaese, Yvan Frans Van Hoof
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Patent number: 8753510Abstract: A fluid pressure vessel has a chamber with an inlet and outlet with a nested primary and secondary filter bag disposed such that the primary bag communicates exclusively with the inlet, and flow through the primary bag flows through the secondary bag before the outlet. The primary bag is disposed in a first rigid porous basket and the bag rim seals against a flange on the first basket. The secondary filter bag surrounds the first basket and the rim of the secondary bag is sealed around the flange of first basket. A second rigid porous basket surrounds the secondary filter bag and is sealed on the rim of the secondary filter bag and is sealed against the inner periphery of the pressure chamber by an O-ring.Type: GrantFiled: September 1, 2011Date of Patent: June 17, 2014Assignee: Eaton CorporationInventors: Richard Bradley Jacobs, Mark Anthony Quintel, Derek Ronald Thelen, Christopher Scott Rau, David Jay Taubenslag
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Patent number: 8714167Abstract: A dishwasher is provided that effectively cleans a filter. The dishwasher may include a rack positioned in a washing space and at least one nozzle that directs washing fluid into the washing space, a sump that receives washing fluid to be supplied to the washing space, and a filter device provided in the sump, including a first filter and a second filter. A driver rotates the first filter or the second filter so as to separate foreign materials from the filter device and prevent the filter device from clogging.Type: GrantFiled: June 30, 2010Date of Patent: May 6, 2014Assignee: LG Electronics Inc.Inventors: Sangheon Yoon, Moonkee Chung
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Publication number: 20140069874Abstract: An oil filter assembly is disclosed for a machine, such as an internal combustion engine, that has an oil output port and an oil input port. A mounting plate may be fixed with an outer enclosure and may be adapted for securing to the machine. The mounting plate may be further adapted to conduct oil from the machine into a peripheral portion of the outer enclosure, and then returning oil from a central portion of the outer enclosure back to the machine. Oil may pass from the peripheral portion to the central portion through a primary filter having a first porosity. A pressure-actuated valve may be fixed fluidly between the peripheral portion and central portion of the outer enclosure. Oil may pass through the pressure-actuated valve only when an oil pressure differential between the peripheral portion and the central portion of the outer enclosure exceeds a predetermined threshold pressure.Type: ApplicationFiled: September 21, 2011Publication date: March 13, 2014Applicant: 37 DEGREE FILTERS INCInventor: Christopher M. Hubbard
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Patent number: 8652327Abstract: A fluid filter providing several degrees of filtering is designed to be receivable in a filter container that is closable by a cover. The filter itself includes both an annular main filter element, through which fluid to be filtered can pass radially to undergo primary filtration, and a supplemental filter element, to which fluid discharged from the main filter element passes to provide supplemental filtration additional to the primary filtration. The main filter element, the supplemental filter element, or both may be oblong or circular in cross section. At least one of a pair of end caps disposed on opposed ends of the main filter element carries the supplemental filter element as well as one end of the main filter element. That end cap may or may not be permanently secured to the one filter element end.Type: GrantFiled: September 14, 2010Date of Patent: February 18, 2014Assignee: MANN+HUMMEL Purolator Filters LLCInventor: Daniel Lucas
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Patent number: 8641892Abstract: Debris adhering to the outer surface of a barrel-type fish screen is cleared by air bursts from a series of perforated air pipes positioned inside the outer foraminous shell of the screen, the perforations being holes with axes at an acute angle to the screen radius for efficient use of the air. Separately, the conical water collection manifold mounted inside the shell is open at its narrow end, with a valve mounted to that open end to control the opening. The opening prevents reduced water inflow at that end of the manifold, and the valve adjusts the access of the surrounding water to the opening, thereby allowing the manifold to be tuned to more closely approach a uniform distribution of axial water flow along the length of the collection manifold for different ambient conditions.Type: GrantFiled: May 23, 2011Date of Patent: February 4, 2014Inventors: John L. Winther, Blake Andrew Toland
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Publication number: 20140008286Abstract: One embodiment is a filter element including an outer filter media and an inner filter media. The outer filter media is operable to remove particulates present in a flow of fluid and/or coalesce water contained in the flow of fluid. The inner filter media is operable to remove particulates from the flow of fluid, separate water form the flow of fluid, and remove particulates from the flow of fluid. Other embodiments include unique apparatus, devices, systems, and methods relating to fuel filters and filtration. Further embodiments, forms, objects, features, advantages, aspects, and benefits of the present application shall become apparent from the detailed description and figures included herewith.Type: ApplicationFiled: September 5, 2013Publication date: January 9, 2014Applicant: CUMMINS FILTRATION IP, INC.Inventors: Zemin Jiang, Melvin Douglas McCormick, David P. Genter, Norman C. Blizard, Jeffrey A. Husband, Michael J. Connor, Wassem Abdalla, Barry M. Verdegan
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Patent number: 8622221Abstract: A filtering device (100) for plastic melts exhibits at least one screen plunger (10) arranged movably between an inlet channel (5) and an outlet channel (6) of a housing (1) and containing replaceable, three-dimensional filter elements (25). The inside of the filter elements (25) is connected to at least one melt channel (11, 12) formed in the screen plunger (10). The melt channel is connected to the inlet or outlet channel (5, 6) of the housing (1) when in the production position. The screen plunger (10) exhibits at least one receiving chamber (14) that can be closed using a cover (16) on the face side. Several filter elements (25) are bundled with a central distribution element (20) to a filter cartridge (30) that can be placed in the receiving chamber (14).Type: GrantFiled: April 19, 2010Date of Patent: January 7, 2014Assignee: Kreyenborg GmbHInventors: Frank Hartmann, Michael Andress
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Patent number: 8590712Abstract: Disclosed are modular filter-in-filter elements, namely an outer filter element and an inner filter element which may be assembled to form a filter cartridge for use in separation methods and systems. The outer filter element typically functions as a coalescing element and the inner element typically functions as a particulate filter element. The disclosed filter cartridges may be structured for separating water from a hydrocarbon-based liquid fuel as the fuel moves through the cartridge from outside to inside.Type: GrantFiled: June 22, 2010Date of Patent: November 26, 2013Assignee: Cummins Filtration IP Inc.Inventors: Mark T. Wieczorek, Terry Shults, William C. Haberkamp, Jonathan Sheumaker, Barry M. Verdegan, Christopher E. Holm, Brian W. Schwandt
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Publication number: 20130299414Abstract: A hydraulic filter may include a ring-shaped full-flow filter and a partial-flow filter arranged coaxially inside the full-flow filter.Type: ApplicationFiled: October 31, 2011Publication date: November 14, 2013Applicant: Mahle International GmbHInventors: Achim Kress, Albert Schick
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Patent number: 8551335Abstract: A dual stage filter includes an outer filter with a first media and an inner filter with a second media. A barrier is between the first media and the second media. The barrier directs fluid flow between the first and second media. The barrier creates a flow path between the first and second media, such that a working fluid, which is desired to pass through the first and second media, is directed by the barrier and flows through the second media, and such that another fluid, which is not desired to pass through the second media, is directed by the barrier and separates from the working fluid. Using the barrier, the dual stage filter can employ either or both upward flow and downward flow to achieve efficient fluid separation, for example fuel water separation in an engine fuel filter.Type: GrantFiled: July 8, 2010Date of Patent: October 8, 2013Assignee: Cummins Filtration IP, Inc.Inventors: Mark T. Wieczorek, Arnaud LeVen, Jean-Luc Guichaoua, Jean-Yves Picard, Gerard Malgorn, Terry W Shults, Barry M. Verdegan
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Patent number: 8524090Abstract: A flexible blood filter allowing smooth flow of a liquid and being excellent in separation resistance, pressure resistance and centrifugation resistance. The blood processing filter, comprising a first filter element for removing aggregates from blood, a second filter element for removing leukocytes provided in the downstream of the first filter element, and the third filter element having gas permeability of 3 to 40 cc/cm2/sec per thickness of 1 cm provided between the second filter element and the outlet port side container.Type: GrantFiled: November 10, 2009Date of Patent: September 3, 2013Assignee: Asahi Kasei Medical Co., Ltd.Inventors: Shin-ichiroh Oka, Yoshimasa Matsuura, Tomohisa Yokomizo
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Patent number: 8517185Abstract: A water separator and particulate filter with a first or outer stage configured to coalesce water from fluid such as fuel, and a second or inner stage configured to separate coalesced water from the fluid and also remove fine solid contaminants from the fluid. The coalescing stage includes a pleated cylinder of polymeric media. The pleated cylinder has pleat valleys and downstream pleat tips, and release sites defined at the downstream pleat tips. The separator stage includes a non-pleated cylinder of polymeric media surrounding and in contact with outer pleat tips of a multi-layer pleated cylinder.Type: GrantFiled: June 22, 2010Date of Patent: August 27, 2013Assignee: Cummins Filtration IP, Inc.Inventors: Mark Wieczorek, Terry Shults, William Haberkamp, Jonathan Sheumaker, Barry M. Verdegan, Christopher E. Holm, Brian W. Schwandt
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Publication number: 20130213877Abstract: A fluid filter (1) includes an outer jug (11), an inner jug (12) and a filter cartridge (3); the inner jug (12) is installed at the top of the outer jug (11), and the filter cartridge (3) is installed in the bottom of the inner jug through the engagement of the protruding rib (35) of the filter cartridge and the fixing components (125) of the inner jug. The filter cartridge (3) may comprise an inner cavity (33) filled with a first filtering material and an outer cavity (34) filled with a second filtering material, such that when water flows into the filter cartridge (3), the water will flow through the first filtering material of the inner cavity (33) and the second filtering material of the outer cavity (34) in succession, thereby allowing the water that flows through the filter cartridge (3) to be filtered twice.Type: ApplicationFiled: April 21, 2011Publication date: August 22, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Shin-Wei Lin, Sheng-Nan Lin
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Patent number: 8470175Abstract: A fuel filter, such as a filter for filtering gasoline or diesel fuel to be supplied to an internal combustion engine, includes an annular main filter element through which fluid to be filtered can pass radially, and a supplemental fluid processing element disposed within the main filter element to which fluid discharged from the main filter element passes. The filter also has end caps, between which opposite ends of both the main filter element and the supplemental fluid processing element are disposed, and to which the opposite ends of both the main filter element and the supplemental fluid processing element are secured. Fluid is discharged from a central volume of the filter through one of the end caps.Type: GrantFiled: September 14, 2010Date of Patent: June 25, 2013Assignee: Purolator Filters NA LLCInventor: Daniel Lucas
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Patent number: 8440083Abstract: One embodiment is a filter element including an outer filter media and an inner filter media. The outer filter media is operable to remove particulates present in a flow of fluid and/or coalesce water contained in the flow of fluid. The inner filter media is operable to remove particulates from the flow of fluid, separate water form the flow of fluid, and remove particulates from the flow of fluid. Other embodiments include unique apparatus, devices, systems, and methods relating to fuel filters and filtration. Further embodiments, forms, objects, features, advantages, aspects, and benefits of the present application shall become apparent from the detailed description and figures included herewith.Type: GrantFiled: September 21, 2011Date of Patent: May 14, 2013Assignee: Cummins Filtration IP, Inc.Inventors: Zemin Jiang, Melvin Douglas McCormick, David P. Genter, Norman C. Blizard, Jeffrey A. Husband, Michael J. Connor, Wassem Abdalla, Barry M. Verdegan
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Patent number: 8414766Abstract: A serviceable device for filtering lubricating oil includes an inlet and an outlet, a first filtering element and an absorption filtering element. The absorption filtering element is configured to absorb a fluidic contaminant present in the lubricating oil when in contact with the absorption filtering element. A flow path for the lubricating oil is from the inlet, through the first filtering element, and out the outlet. The flow path further includes lubricating oil contact with the absorption filtering element.Type: GrantFiled: October 14, 2009Date of Patent: April 9, 2013Assignee: GM Global Technology Operations LLCInventors: Gregory Mordukhovich, James L. Linden, Andrew M. Mance
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Patent number: 8414767Abstract: A fluid purifying module including a monolithic container, a pretreatment filter, and a selectively permeable membrane treatment cartridge, respectively housed in an external cylindrical space and an internal cylindrical space of the container, communicating with each other via one or more passages in the vicinity of one axial end of the container. The external space communicates at the same end as the opposite axial end with a first connector orifice for feeding fluid to be purified to the pretreatment filter, and the internal space communicates separately, at the same end as the aforementioned axial end, with a second connector orifice for evacuating from the module a flow of permeate (purified fluid) and with a third connector orifice for evacuating from the module a flow of retentate (residual fluid).Type: GrantFiled: September 18, 2003Date of Patent: April 9, 2013Assignee: EMD Millipore CorporationInventors: Yves Gaignet, Denis Daulasim, Jacques Moulin
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Patent number: 8388843Abstract: The present invention relates to a device having two or more separate filtration layers that can be independently tested for integrity yet which allow for serial filtration through the two or more layers to obtain the desired characteristics such as retention. The device is made of two or more filtration areas, each containing one filter layer. Each area has one filtration layer and a first endcap bonded to a first end of the filter and a second endcap bonded to a second end of the filter. The areas are arranged concentrically around each other such that the first area is inward of the second area which is inward of a third area and the like. Each area is formed separately and integrity tested separately before final assembly. The first area is slid into the inside of the second area and then the two endcaps are either bonded to each, bonded to a third overall endcap or overmolded by a third endcap.Type: GrantFiled: August 3, 2011Date of Patent: March 5, 2013Assignee: EMD Millipore CorporationInventor: Kevin Rautio
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Patent number: 8333890Abstract: A filter within a filter cartridge design is described that includes a sealing structure on an endplate of an outer filter element. Generally, the sealing structure includes an annular flange on the endplate that can directly seal against an interior surface of a housing when the filter cartridge is assembled for use. During filtration, the annular flange prevents a working fluid from bypassing the outer filter element. The sealing flange can seal with the housing in a press fit engagement.Type: GrantFiled: October 27, 2009Date of Patent: December 18, 2012Assignee: Cummins Filtration IP, Inc.Inventors: Aaron M. Wells, Terry W. Shults, Ismail C. Bagci, Dean Olson, Zemin Jiang, Kevin C. South, Peter K. Herman, Hendrik Amirkhanian, Jeffrey B. Sharp, David P. Genter, Norman C. Blizard, Melvin Douglas McCormick, Jeffrey A. Husband, Wassem Abdalla, Michael J. Connor, Barry M. Verdegan, Donna Butler, Chad T. Brummitt
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Patent number: 8329034Abstract: 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 anionic 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 monoclonal antibodies (MAb), from a fluid mixture.Type: GrantFiled: June 21, 2010Date of Patent: December 11, 2012Assignee: 3M Innovative Properties CompanyInventors: Clinton P. Waller, Jr., Douglas E. Weiss, Catherine A. Bothof, Kannan Seshadri
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Patent number: 8282825Abstract: A fluids filter is presented that is cylindrical in shape and can be adapted to fit inline with any pipe system. The filter is comprised of an outer solid cylinder and an inner cylinder possessing multiple filter means, including a replaceable fine mesh or material filter. An absorbent boom can be placed in the filter system to absorb hydrocarbons or other materials. The inner tube possesses an emergency bypass in case of flows through the pipe system exceeding rated levels.Type: GrantFiled: September 15, 2009Date of Patent: October 9, 2012Inventor: Greg Kent
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Patent number: 8221632Abstract: A plate is positioned across an inlet to a catch basin and a filter strainer is inserted through an opening through the plate and into the basin. A tertiary filter completely surrounds the strainer and is suspended below the plate. Surface water flows through a primary grate that covers the catch basin, through the strainer and through the tertiary filter. The tertiary filter comprising fibrous filter media retained in a non-woven mesh fabric enclosure and the filter media is selected according to the type of contaminants that are to be removed.Type: GrantFiled: December 30, 2009Date of Patent: July 17, 2012Assignee: Cleanway Environmental Partners, Inc.Inventors: Stephen J. McInnis, Matthew E. Moulton
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Patent number: 8216470Abstract: A filter cartridge is described that is designed to accommodate for example dual stage filtration. The filter cartridge has an endplate structure formed of a heat cured material, such as polyurethane, where at least one of the top end and the bottom end of the outer filter and the inner filter are embedded within the heat cured material. The heat cured material can provide an endplate structure that is convenient for manufacture and that has one or more sealing surfaces to seal with a housing that the filter cartridge is assembled with. For example, the heat cured material of the endplate can seal non-filtered fluid from filtered fluid that has passed through each of the filtration stages available in the cartridge.Type: GrantFiled: May 21, 2009Date of Patent: July 10, 2012Assignee: Cummins Filtration IP, Inc.Inventors: Wassem Abdalla, Ricky England, Sainath R. Racha, Eric R. Burgan, Jeffrey A. Husband
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Patent number: 8206585Abstract: An automatic oil-water separation and recovery device, which comprises a cylindrical tank, on the top of which exists an oil collector. The tank has an inflow pipe that links to a pre-separation regulating water distributor therein. The said water distributor is in the shape of an obconic bell mouth. At the lower part of the tank stands an outflow collector on which a bar-shaped oil-water separation unit is secured. The said outflow collector has an outlet. The said oil-water separation unit is made from stainless steel or plastic antipriming pipe firstly wrapped with unwoven cloth, and then taped with wires and outside the wires further wrapped with nonwoven cloth. All the cloth and wires are made of the same highly hydrophilic, oil-resistant material. The automatic oil-water separation and recovery devices described in this invention can be assembled together for separating and recovering ship-generated oily water.Type: GrantFiled: March 3, 2008Date of Patent: June 26, 2012Inventor: Xian Gan
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Patent number: 8192624Abstract: The invention relates to a filtering apparatus in which improvement of maintenance of a driving system, reduction of the number of components, and ease of assembly are achieved.Type: GrantFiled: July 22, 2008Date of Patent: June 5, 2012Assignee: Tsukishima Kikai Co., Ltd.Inventors: Dai Takao, Motomi Ono, Kotaro Neo
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Patent number: 8147693Abstract: A multi-layer filter including a first media layer surrounded by a second media layer, a third media layer surrounding the second media layer, and at least one retainer disposed between the first and second media layers or between the second and third media layers. The first, second and third media layers surround the central axis of the filter. The filter has multiple media layers in a compact package, providing increased media surface area which allows greater contaminant holding capacity, lower pressure drop, and lower face velocity.Type: GrantFiled: May 20, 2008Date of Patent: April 3, 2012Assignee: Cumins Filtration IP, Inc.Inventors: Brian J. Terry, Daniel M. Buckner, Barry M. Verdegan, John W. Clevenger, Jr., Ravi Yekula
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Patent number: 8146662Abstract: A well screen assembly includes an elongate base pipe and a wire wrap layer. The wire wrap layer includes a wire wrapped around support ribs. The wire wrap layer has an axial end section wrapped at a first gage and an intermediate section wrapped at a second, larger gage. A mesh layer is provided around the wire wrap layer. An outer shroud is provided around the mesh layer, the outer shroud sealed to the wire wrap layer.Type: GrantFiled: April 8, 2009Date of Patent: April 3, 2012Assignee: Halliburton Energy Services, Inc.Inventor: Jacob Shoemate