Cylindrical Membrane Patents (Class 210/321.87)
  • Patent number: 10780437
    Abstract: Disclosed is a microfluidic system based on an artificially structured acoustic field, comprising a microcavity used to accommodate a solution containing particles and a ultrasonic emission device used to emit ultrasound, and further comprising a phononic crystal plate placed in the microcavity. The phononic crystal plate has an artificial cycle structure, and is used to modulate the acoustic field so as to control the particles. Also disclosed is a method of controlling microfluid particles based on an artificially structured acoustic field. In the particular embodiments, since a microcavity, an ultrasonic emission device and a phononic crystal plate are comprised, the ultrasonic emission device is used to emit ultrasound, and the phononic crystal plate has an artificial cycle structure, and is used to modulate the acoustic field so as to control the particles.
    Type: Grant
    Filed: October 10, 2015
    Date of Patent: September 22, 2020
    Assignee: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY, CHINESE ACADEMY OF SCIENCES
    Inventors: Hairong Zheng, Fei Li, Feiyan Cai, Long Meng, Chen Wang, Chengxiang Zhang, Weibao Qiu, Yongchuan Li, Fei Yan, Lili Niu, Liufeng Geng, Chaowei Xu
  • Patent number: 10781119
    Abstract: A cord for supporting a biofilm has a plurality of yarns. At least one of the yarns comprises a plurality of hollow fiber gas transfer membranes. At least one of the yarns extends along the length of the cord generally in the shape of a spiral. Optionally, one or more of the yarns may comprise one or more reinforcing filaments. In some examples, a reinforcing yarn is wrapped around a core. A module may be made by potting a plurality of the cords in at least one header. A reactor may be made and operated by placing the module in a tank fed with water to be treated and supplying a gas to the module. In use, a biofilm covers the cords to form a membrane biofilm assembly.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: September 22, 2020
    Assignee: BL TECHNOLOGIES, INC.
    Inventors: Pierre Lucien Cote, Steven Kristian Pedersen
  • Patent number: 10399019
    Abstract: An integrated composite filter and a water purification system having the same are provided. The integrated composite filter includes: a shell defining a chamber therein, and defining a raw water inlet, a pretreated water outlet, a pretreated water inlet, a pure water outlet and a waste water outlet which are in communication with the chamber respectively; a pretreating filtering element disposed within the chamber; a filtering membrane disposed within the chamber. The pretreating filtering element and the filtering membrane are sequentially positioned between the raw water inlet and the pure water outlet as well as the waste water outlet, and the pretreating filtering element is positioned between the raw water inlet and the pretreated water outlet, and the filtering membrane is positioned between the pretreated water inlet and the pure water outlet as well as the waste water outlet.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: September 3, 2019
    Assignees: GUANGDONG MIDEA WATER DISPENSER MFG. CO., LTD., MIDEA GROUP CO., LTD.
    Inventor: Xuegang Cai
  • Patent number: 10286362
    Abstract: Disclosed are an extendable pressurized-type hollow fiber membrane module which facilitates improvement of filtrate quality through a multistep-filtration, enhanced easiness of installation and maintenance, decrease of footprint, and/or enlargement of filtration apparatus (without causing decrease of permeate flux of a unit hollow fiber membrane), and a filtration apparatus manufactured using the same. The filtration apparatus of the present invention comprises first and second pressurized-type hollow fiber membrane modules, wherein an inlet port of the first pressurized-type hollow fiber membrane module for introducing feed water and an outlet port of the second pressurized-type hollow fiber membrane module for discharging filtrate or air are coupled to each other.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: May 14, 2019
    Assignee: KOLON INDUSTRIES, INC.
    Inventor: Ah Reum Lee
  • Patent number: 9895664
    Abstract: A cartridge type hollow-fiber membrane module of the present invention includes: a housing; a plurality of hollow fiber membranes housed in the housing; a first potting part which bundles first ends of the hollow fiber membranes while keeping the first ends open; a second potting part which bundles second ends of the hollow fiber membranes while keeping the second ends sealed; a fixing part which detachably fixes the first potting part to the housing; a sealing part which liquid-tightly seals a space between the first potting part and the housing; and a holding part which holds the second potting part so that the second potting part is detachable from the housing and so that liquids can pass through a space between the second potting part and the housing.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: February 20, 2018
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Atsushi Kobayashi, Hayato Inuzuka, Shun Shimura, Norihiro Takeuchi
  • Patent number: 9859576
    Abstract: A membrane humidifier includes buffering and spacing structures each interposed between adjacent hollow fiber membranes of a plurality of hollow fiber membranes arranged in a housing of the membrane humidifier, wherein the buffering and spacing structures buffer a pressure of air supplied from an air blower and maintain a spacing between the adjacent hollow fiber membranes.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: January 2, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Jin Woo Koo, Hyun Yoo Kim
  • Patent number: 9784102
    Abstract: A fracture insert is disclosed including a first cylindrical portion and a second cylindrical portion disposed opposite the first cylindrical portion defining a radial gap therebetween to form an axial flow channel. The axial flow channel provides a flow path for a drilling fluid from a top of the cylindrical portions to a bottom of the cylindrical portions and the radial gap provides a flow path for the drilling fluid from the axial flow channel to a radial terminus of the first cylindrical portion and the second cylindrical portion.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: October 10, 2017
    Assignee: M-I L.L.C.
    Inventors: Aaron Blue, John Moffitt
  • Patent number: 9700816
    Abstract: An elongated fluid degassing apparatus may be employed as a fluid transfer line for fluidly connecting components in a liquid system, while at the same time degassing, or preventing re-gassing of, the fluid. The fluid transfer line degassing apparatus forms a shell and tube degassing arrangement, wherein shell-side fluid flow is facilitated by one or more spacer elements that centrally position a semi-permeable separation membrane in the shell chamber. The degasser may include one or more tubular separation membranes that provide a gas-permeable, liquid-impermeable contact surface to effect the gas-liquid separation of the process fluid.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: July 11, 2017
    Assignee: IDEX Health & Science LLC
    Inventors: Quan Liu, Yuri Gerner, Carl Sims
  • Patent number: 9694326
    Abstract: This composite hollow fiber membrane comprises a gas-permeable non-porous homogeneous layer which has a polyolefin resin (A) as the main component and a porous support layer which is made of a polyolefin resin (B) and which supports said non-porous homogeneous layer, and the composite hollow fiber membrane is characterized in that the polyolefin resin (A) of non-porous homogeneous layer is a block copolymer of ethylene units and at least one type of olefin unit selected from ?-olefin units having a carbon number of 3-20. By this means, a gas-permeable composite hollow fiber membrane is provided which has good gas permeability, reduces the impact of condensate on the performance of a gas dissolving module, and has excellent elution properties.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: July 4, 2017
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventor: Noritaka Shibata
  • Patent number: 9675929
    Abstract: An air separation module includes a plurality of fibers located within a casing. A fiber membrane defines an exterior of each of the plurality of fibers. The fiber membrane also forms an interior passage along a length of each of the plurality of fibers. The fiber membrane is configured to permeate a gas through the fiber membrane. At least one perforated canister is placed between the plurality of fibers. The at least one perforated canister is configured to collect a permeated gas from the plurality of fibers.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: June 13, 2017
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Christopher McAuliffe, Haralambos Cordatos
  • Patent number: 9669362
    Abstract: The subject of the invention is a membrane for the cross-flow filtration of a fluid to be treated that contains abrasive particles, comprising a porous support covered over part of its surface with a separation layer having a pore diameter smaller than that of the support, over which the fluid to be treated flows, characterized in that the separation layer includes an agent for protection from the abrasive particles.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: June 6, 2017
    Assignee: TECHNOLOGIES AVANCEES ET MEMBRANES INDUSTRIELLES
    Inventor: Philippe Lescoche
  • Patent number: 9528760
    Abstract: The present invention of a method for producing a porous membrane including a solidification step of forming a porous membrane, and a heating step of drying the porous membrane, wherein the heating step includes at least a water reduction step of the porous membrane, the water reduction step uses a heating medium, and the temperature of the heating medium (Tgh) satisfies a relation of tgh>Td, when Td represents the heat deformation temperature of a membrane material. The present invention of a drying device of a porous membrane including a water reduction unit, and a final drying unit, wherein the drying device includes a membrane-surface-temperature measurement means for measuring the surface temperature of the porous membrane and the final drying unit, and a control means for controlling the temperature and/or the flow speed of the heating medium of the water reduction unit.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: December 27, 2016
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Osamu Maehara, Masaki Kurashina, Toshinori Sumi
  • Patent number: 9206060
    Abstract: The method for purifying liquids purifies a saline liquid, e.g., salt water, using a plurality of first phase reverse osmosis (RO) units and at least one final phase reverse osmosis unit. The plurality of first phase reverse osmosis units are arranged in series. At least some of the concentrate in a last reverse osmosis unit of the series is recycled back to the permeate or output side of that unit to provide a mixed permeate. The mixed permeate is then passed successively to the permeate side of each preceding reverse osmosis unit in the series. This increases the salt content of the liquid in the permeate side of each phase, thus reducing the concentration differential across reverse osmosis membranes of the first phase reverse osmosis units.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: December 8, 2015
    Inventor: Basel Abusharkh
  • Publication number: 20150136697
    Abstract: An oily water separator for removing oil from oil-containing water, including a vessel, a filtration membrane unit and a discharge mechanism; the filtration membrane unit containing a filtration membrane module and a returning mechanism, the filtration membrane module for performing filtration in the state of allowing the module to be immersed into the oil-containing water; the filtration membrane module having an elongated filtration membrane with an opening portion, the opening portion of the filtration membrane being fixed to one end of the filtration membrane module, the opening portion of the filtration membrane being communicatively connected to the returning mechanism; the returning mechanism being extended along the filtration membrane toward an end on a side opposite to an end portion having the opening portion thereof, the returning mechanism being communicatively connected with the discharge mechanism.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventors: Masaaki SAKURAI, Kenji SAKAI, Hidekiyo HARA, Kanako ABE, Takashi NOMURA
  • Publication number: 20150053601
    Abstract: The membrane module according to the present invention comprises a tubular case, and a membrane fixed with a resin and accommodated in the state where filtered water is capable of being taken out from at least one end of the tubular case, in the tubular case, wherein the resin has an elution rate of chloride ions per unit surface area and per unit time of less than 10 ?g/(m2·hr) in an elution test using hot water.
    Type: Application
    Filed: March 27, 2013
    Publication date: February 26, 2015
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Satoshi Shiki, Takashi Itoh, Kenzou Onizuka, Teruhisa Yamada
  • Patent number: 8961791
    Abstract: 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: Grant
    Filed: February 5, 2009
    Date of Patent: February 24, 2015
    Assignee: Probe Scientific Limited
    Inventors: Mark Thomas O'Connell, Stewart Jeffrey Block, Rodney Ruston
  • Patent number: 8956538
    Abstract: Disclosed herein are systems and methods for desalination of salt water based on an engineered acoustic field that causes constructive and destructive interference at pre-computed spatial positions. The engineered acoustic field can cause high-pressure and low-pressure regions where desalination membranes are located. The induced pressure from the acoustic field can force pure water through the membranes leaving ionic and dissolved molecular species behind.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: February 17, 2015
    Assignee: FloDesign Sonics, Inc.
    Inventors: Edward A. Rietman, Bart Lipkens
  • Publication number: 20150041127
    Abstract: Provided is an oil/water separation method that is capable of decreasing the frequency of clogging. The method is for separating oil and water from each other that are generated by an in-situ recovery method for producing bitumen 82 from oil sand (1500). After oil-containing water (83, 84) obtained as a result of the bitumen 82 being removed from a bitumen-mixed fluid 81 recovered from under the ground is prepared, the step of membrane-distilling the oil-containing water 84 by use of a distillation membrane member 10 formed of a porous membrane 20 is performed.
    Type: Application
    Filed: February 22, 2013
    Publication date: February 12, 2015
    Inventors: Nobuharu Kuki, Ryoichi Matsushima
  • Patent number: 8944091
    Abstract: A system for ventilating and venting containers containing a fluid volume, such as gearboxes containing an oil filling, has a line system connecting the container to the atmosphere. Upon changes in the volumes in the container due to temperature changes, pressure is equalized. The line system contains a separating housing (12) in which a separating medium (46) having oleophobic and hydrophobic properties separates a first space (42) connected to the container from a second space (44) connected to the atmosphere. Line connections (10, 14) on the separating housing (12) are provided such that liquid-phase substances on opposite sides of the separating medium (46) can flow out of the first space (42) to the container and can drain out of the second space (44) to the atmosphere.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 3, 2015
    Assignee: Hydac Filtertechnik GmbH
    Inventors: Michael Sakraschinsky, Volkmar Klein
  • Publication number: 20140367336
    Abstract: The present disclosure relates to a molecular exchange device. In particular, the molecular exchange device comprises at least one fluid passageway and an actuator, the actuator positioned to provide a secondary fluid pathway within at least one of the fluid passageways.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 18, 2014
    Applicant: PROBE SCIENTIFIC LIMITED
    Inventors: Mark Thomas O'Connell, Stewart Jeffrey Block, Rodney Ruston
  • Patent number: 8883006
    Abstract: A fluid treatment system for treating feed water includes a first tubular member having first and second ends, at least one second tubular member having first and second ends, a pump positioned within the first tubular member, a filtering membrane positioned within the second tubular member, a first end cap for receiving the first ends of the first and second tubular members, and a second end cap for receiving the second ends of the first and second tubular members.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: November 11, 2014
    Assignee: Kinetico Incorporated
    Inventors: Jerome Kovach, Stuart L. Park, Peter R. Halemba
  • Publication number: 20140318372
    Abstract: A system using membranes for separating a desired component from a liquid or gas mixture to obtain a high-concentration organic solvent, such as in a plant for fermenting a biomass feedstock (e.g., corn or sugarcane) to produce ethanol. A module for removing water from the ethanol/water mixture comprises multiple vessels or elements connected together in series and supported by a frame. Each element includes a number of flow tubes concentrically enclosing a tubular membrane leaving an annular space between the membrane's outer wall and the flow tube's inner wall. The preferred membrane is a hollow ceramic (e.g., zeolite) tube. An ethanol/water vapor is passed through the space between the tube walls, and a vacuum is pulled on the membrane's hollow core. Water molecules selectively move through the membrane. Multiple passes through a series of elements having the concentric tubes and membranes gradually reduces the water content of the ethanol.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 30, 2014
    Inventor: Floyd Butterfield
  • Publication number: 20140283683
    Abstract: A fluid separation apparatus is described, including a casing and a separation module. The casing includes a mixed fluid inlet, a separated fluid outlet through which a selectively separated fluid is discharged, and a residual fluid outlet. The separation module has a set of serially arranged separation elements disposed therein and is insertable into the casing from an end of the casing. The separation module includes a first connection jig disposed between adjacent separation elements second connection jigs disposed at two ends of the set of serially arranged separation elements, and a coupling jig coupling the first and the second connection jigs to each other.
    Type: Application
    Filed: October 28, 2011
    Publication date: September 25, 2014
    Applicant: JGC CORPORATION
    Inventors: Syuichi Oguro, Nobuhiro Yamada, Yasushi Fujimura
  • Publication number: 20140263061
    Abstract: New, improved, or modified membrane contactors, modules, systems, and/or methods for membrane distillation and/or ammonia removal, and/or methods of manufacture, use, and/or the like. In accordance with at least selected embodiments, particular possibly preferred membrane contactors, modules, systems, and/or methods for membrane distillation and/or ammonia removal, and/or to particular possibly preferred membrane contactors, modules, systems, and/or methods for membrane distillation and/or ammonia removal, involving membrane contactors adapted for membrane distillation, for ammonia removal, or for both membrane distillation and for ammonia removal, as well as for other membrane contactor systems, methods or processes such as degassing, gasifying, separation, filtration, and/or the like.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Celgard, LLC
    Inventors: Gareth P. Taylor, Amitava Sengupta
  • Publication number: 20140251893
    Abstract: The present invention relates to a filtration means (10) for the filtration of liquid media having a housing (12) and at least one filter element (16) arranged in said housing (12), wherein at least one of said filter element (16) at at least one axial end has a laterally outwardly extending flange (24), which is connected to said housing (12) forming a seal. Said flange (24) has a conical surface (25) projecting outwardly which interacts with a complementary conical surface (27) of a gasket (26) which is arranged between said flange (24) and said housing (12).
    Type: Application
    Filed: August 2, 2012
    Publication date: September 11, 2014
    Applicant: KSM WATER GmbH
    Inventors: Christian Goebbert, Manfred Volz
  • Patent number: 8790586
    Abstract: The present application relates to a molecular exchange device (1) for use with an analysis and control apparatus and a method of manufacturing a molecular exchange device.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: July 29, 2014
    Assignee: Probe Scientific Limited
    Inventors: Mark Thomas O'Connell, Stewart Jeffrey Block
  • Publication number: 20140183123
    Abstract: A hollow fiber membrane module including at least two types of hollow fiber membranes having different inner diameters, comprising first hollow fiber membranes and second hollow fiber membranes, and the equation |PA?P0?|PB?P0| where P0 is an initial pressure applied to upper open ends of the first and second hollow fiber membranes, and PA and PB are respective pressures at lower open ends of the first and second hollow fiber membranes.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Gyu Hong MIN, Fufang ZHA
  • Publication number: 20140131279
    Abstract: The present invention includes an apparatus and method for removing oil from a oil-containing liquid comprising oil and gas comprising: a source of oil-containing liquid; and a membrane contactor system in fluid communication with the source of oil-containing liquid, the membrane contactor system comprising one or more membrane contactors having a first and a second surface, wherein the first surface coalesces oil and removes gas from the oil-containing liquid, and the oil and gas are collected on the second surface from the oil-containing liquid.
    Type: Application
    Filed: December 9, 2013
    Publication date: May 15, 2014
    Applicants: Organic Fuels Algae Technologies, LLC, Board of Regents, The University of Texas System
    Inventors: Frank Seibert, Stephen William Briggs, Stacy S. Truscott, Peter B. Kipp
  • Publication number: 20140110317
    Abstract: The invention is directed to a device for the concentration of fluids comprising a donor receptacle containing a fluid to be concentrated, the donor receptacle comprising a plunger; a receiving receptacle to receive the concentrated fluid, the receiving receptacle comprising a plunger; a concentrator device that is connected to the donor receptacle and the receiving receptacle; and a housing that encloses the donor and receiving receptacles and the concentrator device that the plungers of the donor and receiving receptacles are enclosed within chambers that are gas tight.
    Type: Application
    Filed: October 23, 2013
    Publication date: April 24, 2014
    Applicant: SpineSmith Partners, L.P.
    Inventors: Joshua K. Hoyt, Greg Hinzmann, Paul DeKoning, David John Sayler, Theodore Sand
  • Patent number: 8702990
    Abstract: A fluid purification system, comprising: a first fluid purification media comprising a rigid porous purification block, comprising: a longitudinal first surface; a longitudinal second surface disposed inside the longitudinal first surface; and a porous high density polymer disposed between the longitudinal first surface and the longitudinal second surface; a second fluid purification media, comprising a fibrous, nonwoven fabric disposed adjacent to the first surface of the first fluid purification media, the second surface of the first purification media, or both.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: April 22, 2014
    Assignee: Selecto, Inc.
    Inventor: Ehud Levy
  • Patent number: 8679338
    Abstract: A system is provided that includes one or more acoustic microfilters through which is flowed a mixture of a fluid and a particulate to selectively filter particles from the fluid. Also included are one or more phononic crystal units coupled to the acoustic microfilter(s) to further selectively filter particles from the fluid. Related apparatus, systems, techniques and articles are also described.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: March 25, 2014
    Assignee: Flodesign Sonics, Inc.
    Inventors: Edward A. Rietman, Bart Lipkens, Jason Dionne
  • Patent number: 8668094
    Abstract: A carbon membrane structure includes: a cylindrical porous support body provided with a plurality of cells extending from one end face to the other end face and functioning as fluid passages, and a carbon membrane disposed on the surface side of the cells formed in the porous support body. The plurality of cells are formed so that a distance from one cell to another cell adjacent to the one cell in a cross section perpendicular to a cell extension direction of the porous support body 1 is 0.60 mm or more. The carbon membrane structure shows very excellent separation performance by the carbon membrane.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 11, 2014
    Assignee: NGK Insulators, Ltd.
    Inventor: Shogo Takeno
  • Publication number: 20140061116
    Abstract: An exchanger device for transferring mass and/or energy between a first medium and a second medium includes a chamber having a first inlet and first outlet of the first medium and through which the first medium can flow. The chamber is equipped with at least one, preferably a plurality, of one mass- and/or energy-permeable exchanger hollow fibers connected at one end to a second inlet and at the other end to a second outlet of the second medium. The second medium can flow through the fiber(s) and the first medium can flow around the fiber(s). The chamber is equipped with at least one pump element for displacing the first medium in and out of the chamber in a pulsing manner. The pump element has an elastically deformable element, is connected to a third inlet of a third medium used as a driving medium, and is expandable by the third medium.
    Type: Application
    Filed: May 2, 2012
    Publication date: March 6, 2014
    Applicant: Dritte Patentportfolio Beteiligungsgesellschaft mbH & Co. KG
    Inventors: Thomas Schmitz-Rode, Ulrich Steinseifer, Jutta Arens, Peter Schlanstein, Ralf Borchardt
  • Patent number: 8657775
    Abstract: The present invention relates to high cut-off hemodialysis membranes for the treatment of chronic hemodialysis (CHD) patients, with the potential to improve long-term survival of these patients by reducing the risk of cardiovascular disease, through down-regulation of monocyte activation in the blood. Monocytes are the major circulating blood cells involved in the progression of cardiovascular disease. High cut-off hemodialysis in chronic dialysis patients results in a sustained decrease in expression of monocyte cell-surface proteins that direct the movement of these cells from the blood to the walls of blood vessels, where they promote the progression of arterial disease (atherosclerosis) that leads to cardiovascular disease (CVD); heart disease, strokes and peripheral vascular disease.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: February 25, 2014
    Assignee: Gambro Lundis AB
    Inventors: Colin Hutchison, Paul Cockwell, Hermann Göhl, Bernd Krause, Markus Storr
  • Publication number: 20140042077
    Abstract: A hollow fiber membrane fluid transport device is disclosed wherein the fibers are comprised of Polytetrafluoroethylene (PTFE), and the potting materials are comprised of fluorocopolymer and or fluoroterpolymer based materials. The potting of the device utilizes a compressed chemically resistant fluorocopolymer and or fluoroterpolymer film, allows for ease of manufacture without destruction of the PTFE hollow fibers, with high packing densities, and without the processing complexity of pre-melting, extruding, or chemical crosslinking of any polymeric adhesives. Furthermore, the PTFE hollow fibers can be treated with a fluoropolymeric solvent solution before the chemically resistant film is applied to enhance the adhesion of the PTFE fiber to the film.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 13, 2014
    Applicant: MARKEL CORPORATION
    Inventors: Robert E. Jerman, Cornelius Brown, Jr., Kenneth Donald Hobbs, Carlos Ruano, Charles Edward Wolanski
  • Publication number: 20140042076
    Abstract: A hollow fiber membrane fluid transport device is disclosed wherein the fibers are comprised of Polytetrafluoroethylene (PTFE), and the potting materials are comprised of fluorocopolymer and or fluoroterpolymer based materials. The potting of the device utilizes a compressed chemically resistant fluorocopolymer and or fluoroterpolymer film, allows for ease of manufacture without destruction of the PTFE hollow fibers, with high packing densities, and without the processing complexity of pre-melting, extruding, or chemical crosslinking of any polymeric adhesives. Furthermore, the PTFE hollow fibers can be treated with a fluoropolymeric solvent solution before the chemically resistant film is applied to enhance the adhesion of the PTFE fiber to the film.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 13, 2014
    Applicant: MARKEL CORPORATION
    Inventors: Robert E. Jerman, Cornelius Brown, Jr., Kenneth Donald Hobbs, Carlos Ruano, Charles Edward Wolanski
  • Publication number: 20140027370
    Abstract: A separation membrane module includes: a pressure container having a tubular shape; a plurality of separation membrane elements loaded in the pressure container so as to be aligned in the axial direction of the pressure container; and a coupling member coupling together the separation membrane elements adjacent to each other. The separation membrane element includes a central tube and a pair of end members 3A and 3B fixed to both end portions of the central tube. The coupling member 5A is configured to be engaged with at least one of the end members 3A and 3B located on both sides of the coupling member 5A. In addition, a sensor is mounted in the coupling member 5A.
    Type: Application
    Filed: April 4, 2012
    Publication date: January 30, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Kentarou Kobayashi, Takahisa Konishi, Makoto Kobuke
  • Publication number: 20140027360
    Abstract: Disclosed are a filtration apparatus having the advantages of conventional pressurized-type and submerged-type filtration apparatuses and a hollow fiber membrane module therefor. The filtration apparatus of the present invention comprises: a tank into which feed water is to be introduced, the tank comprising first and second inner step surfaces arranged opposite to each other; and a hollow fiber membrane module to be submerged in the feed water introduced in the tank, the hollow fiber membrane module comprising first and second headers and a hollow fiber membrane therebetween, wherein first and second ends of the first header are supported by the first and second inner step surfaces respectively.
    Type: Application
    Filed: March 16, 2012
    Publication date: January 30, 2014
    Applicant: KOLON INDUSTRIES, INC.
    Inventor: Kwang-Jin Lee
  • Patent number: 8623208
    Abstract: A hollow fiber membrane module and a puller used therefore is disclosed, wherein each individual hollow fiber membrane module can be easily pulled out from a filtering apparatus provided with a plurality of hollow fiber membrane modules if it is required to be replaced or repaired. At this time, the hollow fiber membrane module comprises a hollow fiber membrane; and at least one header to which the hollow fiber membrane is potted, wherein the header includes a first lateral side to which the hollow fiber membrane is potted and a second lateral side opposite to the first lateral side, and wherein an engaging plate is formed at the second lateral side. Also, the puller comprises a main body; and a hooking member, extending from an end of the main body, formed in a shape suitable for being caught in the engaging plate.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: January 7, 2014
    Assignee: Kolon Industries, Inc.
    Inventor: Kwang-Jin Lee
  • Patent number: 8623215
    Abstract: Embodiments of the invention provide a membrane module including a first plurality of fibers capable of filtering fluids that are helically wound in layers creating a mono helix. Fluids to be treated can flow radially with respect to a longitudinal axis of the mono helix or parallel to the longitudinal axis of the mono helix. The membrane module can further include a second plurality of fibers that are helically wound with the first plurality of fibers to create a dual helix. The second plurality of fibers can have different properties than the first plurality of fibers in order to achieve different filtering functionalities.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: January 7, 2014
    Assignee: Porous Media Corporation
    Inventors: Philip M. Rolchigo, John H. Burban, John Shanahan, Robert O. Crowder
  • Publication number: 20130319084
    Abstract: A flush pump feature on a liquid purifying filter includes a segment of flexible tubing containing a small bulb pump is described. Two check valves are positioned upstream and downstream of the bulb pump which then terminates with a simple manually operated open/closed valve. The addition of this flush pump feature enables the filter unit to be easily purged of air at first use and also will make the filter easier to clean and maintain without the need to remove it from a hydration carrier. In addition, the flush bulb feature can also be used to perform a simple visual integrity test of filter while out in a remote location and also can be used to effectively remove bulk water from the filter for lighter storage when not in use which also minimizes freeze related damage when used in a cold environment.
    Type: Application
    Filed: May 7, 2013
    Publication date: December 5, 2013
    Applicant: Nephros, Inc.
    Inventor: Nephros, Inc.
  • Patent number: 8591739
    Abstract: The present invention discloses a method and apparatus for separating particles and dissolved matter from a fluid stream. Specifically, the present invention includes a first pressure source which transports untreated fluid into a separator annulus with a filter element disposed therein. The untreated fluid is placed under appropriate pressure sufficient to produce turbulent flow, increased particle kinetics and/or cavitation physics allowing the desired fluid to penetrate and pass into and through the filter media. The filtered fluid is then transported to a collection tank. The contaminant particulate matter retained on the exterior of the filter media may be removed by the instantaneous reverse pressurization of the separator annulus by a second pressure source thereby removing the contaminant particles away from contact with the filter media, and which may then be transported to a waste collection tank or a concentrator for further treatment.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: November 26, 2013
    Assignee: Tervita, LLC
    Inventors: Raymond Ford Johnson, Markley Dean Johnson, Rodney Grage
  • Patent number: 8584535
    Abstract: Highly efficient and rapid filtration-based concentration devices, systems and methods are disclosed with sample fluidic lines and a filter packaged in a disposable tip which concentrate biological particles that are suspended in liquid from a dilute feed suspension. A sample concentrate or retentate suspension is retained while eliminating the separated fluid in a separate flow stream. The concentrate is then dispensed from the disposable tip in a set volume of elution fluid. Suspended biological particles include such materials as proteins/toxins, viruses, DNA, and/or bacteria in the size range of approximately 0.001 micron to 20 microns diameter. Concentration of these particles is advantageous for detection of target particles in a dilute suspension, because concentrating them into a small volume makes them easier to detect. All conduits by which the disposable tip attaches to the instrument are combined into a single connection point on the upper end of the tip.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: November 19, 2013
    Assignee: Innova Prep LLC
    Inventors: Andrew Edward Page, Zachary A. Packingham, David Scott Alburty, Alec D. Adolphson
  • Patent number: 8540079
    Abstract: A sludge filtration apparatus has a sludge tank configured to store sludge and at least one filter assembly. The filter assembly includes a filtration membrane for filtering the sludge and a pipe insertable in the filtration membrane to supply air to a secondary side of the filtration membrane for dislodging the sludge from the filtration membrane. The pipe has a plurality of holes for discharging gas, namely air, to an area in which the filtration membrane inclines downwardly with the secondary side thereof. The sludge filtration apparatus can prevent thickened sludge from remaining in an upper portion of the filter assembly.
    Type: Grant
    Filed: October 21, 2007
    Date of Patent: September 24, 2013
    Assignee: Metawater Co., Ltd.
    Inventors: Koji Yoshida, Mikimasa Yamaguchi
  • Publication number: 20130228518
    Abstract: A separation membrane module and fluid separation method are disclosed. A plurality of tubes are arranged in a body. A first chamber on a first fixed plate at an opposite side where the tubes are attached, comprising a plurality of rooms divided by at least one divider. A second chamber on a second fixed plate at an opposite side where the tubes are attached, comprising a plurality of rooms divided by at least one divider. The tubes are connected in series in terms of fluid path. A operation in which mixed fluid containing two or more types of fluid that flows into one of the rooms within one of chambers flows within one of the tubes, flows into one of the rooms within another chamber, and flows into another of the tubes by way of one of the rooms within the another chamber is repeatedly carried out.
    Type: Application
    Filed: May 25, 2012
    Publication date: September 5, 2013
    Applicant: KYOCERA Corporation
    Inventors: Kenichi ITO, Masaaki OBATA
  • Publication number: 20130213875
    Abstract: The present invention relates to the production of high flux hollow fiber ultrafiltration membrane prepared from poly(acrylonitrile-co-methacrylic acid), (polysulfone and poly(acrylonitrile-co-methacrylic acid)) and (polysulfone and ion exchange resin (sulfonated polystyrene-divinyl benzene copolymer)) blend and the point-of-use filtration unit there from for water purification and disinfection. The produced membrane has an active layer with pore size which effectively rejects pathogens and other bacteria from contaminated water while allowing the passage of water to produce biologically pure water for drinking. Therefore, the present invention relates to development of hollow fiber ultrafiltration membrane that delivers biologically pure water at a desirable rate, that is at a rate 25-200 liters/m2.h. The membrane performance in terms of flux and rejection efficiency is dependent on polymer material type and surface properties.
    Type: Application
    Filed: September 13, 2011
    Publication date: August 22, 2013
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Alamuru Venktarami Reddy, Paramita Ray, Puyam Sobhindro Singh, Parashuram Kallem, Sandipkumar Maurya, Jitendra Jaydevprasad Trivedi
  • Publication number: 20130206673
    Abstract: A wet spinning process for forming a tubular fiber membrane is provided. The tubular fiber membrane has a nanoporous skin layer and a microporous lumen layer. The skin layer defines an outer surface of the fiber membrane and the lumen layer defines a lumen surface of the fiber membrane. The pores in the skin layer may have an average pore size of less than about 7 nm, and pores in the lumen layer may have an average pore size of from about 0.5 to about 3 ?m. The fiber membranes may be used in artificial renal proximal tubules, artificial kidneys, bioreactors, or fiber cartridges.
    Type: Application
    Filed: October 25, 2010
    Publication date: August 15, 2013
    Inventors: Jackie Y. Ying, Rensheng Deng, Min Hu, Ming Ni
  • Patent number: 8496826
    Abstract: A hollow fiber membrane type fluid treatment device having at least a body portion of tubular housing containing a hollow fiber membrane bundle. In the hollow fiber membrane type fluid treatment device, an inner surface of a body portion of the tubular housing at a side of a treatment liquid inlet has a body straight portion and an end tapered portion which increases in diameter toward an end face of the housing body portion, the hollow fiber membrane is arranged so that a distance between the hollow fiber membranes is gradually increased toward the end face on the treatment liquid inlet side along a taper of a tapered portion of the inner surface of the housing body portion, and a liquid to be treated flows within the hollow fiber membranes and a treatment liquid flows outside of the hollow fiber membranes.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: July 30, 2013
    Assignee: Asahi Kasei Medical Co., Ltd.
    Inventors: Yukihiko Uchi, Makoto Fukuda, Satoshi Uezumi, Hidetoshi Hidaka, Takayasu Fujimura
  • Patent number: 8480898
    Abstract: A membrane module for an immersed operation has a fiber bundle of hollow fiber membranes which are cast into a headpiece and in immersed operation are surrounded by a liquid to be filtered. The module has a permeate collection chamber connected to the headpiece with an outlet for permeate draining from the interior of the hollow fiber membranes, and a gas supply having a pipe guided by the headpiece. The pipe terminates in the interior of the fiber bundle and has a gas outlet for a gaseous medium, which after the transfer from the pipe to the liquid to be filtered rises as bubbles between the hollow fiber membranes. The fiber bundle is divided into sections and free spaces remain between the sections which extend from the pipe to the outer circumference of the headpiece and promote an inflow of the liquid into a foot area adjoining the headpiece.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: July 9, 2013
    Assignee: Koch Membrane Systems GmbH
    Inventors: Stefan Schäfer, Klaus Vossenkaul, Christoph Kullmann
  • Patent number: 8460542
    Abstract: A suction filter may comprise a bag-shaped filter member and a passage member. The passage member is disposed in an internal space of the filter member. The passage member has a fuel passage and a plurality of openings, and guides fuel from the internal space to the outside of the internal space. The openings communicate the internal space of the filter member to the fuel passage. When the passage member is cut along a surface thereof perpendicular to a longitudinal direction of the passage member in each of the openings, a position on an outer circumferential surface of the passage member in the cut surface, in which the distance between the outer circumferential surface and the filter member is the smallest, is distant in a circumferential direction from a position on the outer circumferential surface where the opening is formed.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: June 11, 2013
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Toshihide Oku, Tetsuya Hara, Yoshinobu Kato