All Cylindrical Membranes Are Parallel Patents (Class 210/321.89)
  • Patent number: 10744519
    Abstract: A discharge device for discharging a liquid content in a tube container in a droplet form, in which a tube main body; a tube head including an integrated discharge rod; a regulating unit provided in an assembly space of the tube head; and a valve unit are sequentially assembled, so that a uniform amount of the liquid content is discharged in the droplet form through a narrow passage and a wide passage, and then through the wide passage and a narrow passage when the liquid content is discharged in the droplet form in a process of discharging the liquid content through a discharge passage by a pressure applied by a user. Accordingly, an appropriate amount of the liquid content is smoothly used. Particularly, long-term use of the liquid content is ensured, and the uniform amount of the liquid content is accurately discharged in the droplet form.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: August 18, 2020
    Inventor: Jong Su Lim
  • Patent number: 10322223
    Abstract: An oxygenator comprising a hollow-fibre film bundle is surrounded at least in certain areas by a bubble-retaining filter. In order to ensure an optimal function of the hollow-fibre film bundle and the bubble-retaining filter, it is proposed that a gas-permeable retaining structure is arranged between hollow-fibre film bundle and bubble-retaining filter.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: June 18, 2019
    Assignee: MEDOS Medizintechnik AG
    Inventors: Wolfgang Ochel, Andreas Maurer
  • Patent number: 10143650
    Abstract: A dispersion including a plurality of bodies dispersed in a continuous phase. Each dispersed body including an internal drop formed with an internal phase miscible with the continuous phase, the internal drop (16) receiving an active product. Each dispersed body including, around the internal drop, a membrane formed with an intermediate phase immiscible with the continuous phase and totally surrounding the internal drop. The ratio R1 of the average thickness (e) of the membrane over the average transverse dimension (Dc) of the active volume delimited by the internal drop and the membrane is greater than 0.05, and is advantageously less than 0.5. The ratio R2 of the partition coefficient of the active product between the intermediate phase forming the membrane and the internal phase forming the internal drop over the viscosity of the membrane is less than 1 s?1·Pa?1.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: December 4, 2018
    Assignee: CAPSUM
    Inventors: Jérôme Bibette, Thomas Delmas, Enric Santanach Carreras, Leslie Rolland
  • Patent number: 10137619
    Abstract: Hollow fiber membranes are potted by injecting a liquid material into a substantially closed cavity (44) containing the fibers. The cavity may be formed in part by the interaction of a mold a permeate pan (52) and a layer of an adhesive pre-applied to a bundle of the membranes.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: November 27, 2018
    Assignee: ZENON TECHNOLOGY PARTNERSHIP
    Inventors: Robert Szabo, Gabor Bakos, Attila Palinkas, Steven Kristian Pedersen
  • Patent number: 10124105
    Abstract: A device (1) for the extracorporeal oxygenation of the blood of a patient, comprising a containment casing (2) which has at least an inlet port (4) of the venous blood and at least an outlet port (5) of the arterial blood, at least an inlet channel (6) and at least an outlet channel (7) of a work gas intended to provide oxygen to blood and/or to remove CO2 from the same, at least a bundle of hollow fibers (8) arranged within the casing (2) and placed between the inlet channel (6) and the outlet channel (7), the hollow fibers being in communication with the inlet and outlet channels (6, 7) and being intended to be crossed by the relative work gas, at least a first and at least a second filtering elements (12, 13) arranged inside the bundle of hollow fibers (8) and spaced apart the one from the other, the filtering elements (12, 13) being able to trap any air bubbles present in the treated blood, where the first and second filtering elements (12, 13) define a relative open profile and where the hollow fibers (8
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: November 13, 2018
    Assignee: Eurosets S.r.l.
    Inventors: Antonio Petralia, Nicola Ghelli, Edgardo Costa, Roberto Balanzoni
  • Patent number: 10105642
    Abstract: A device for the separation of water, in particular water vapor, from a fluid flow containing water, in particular water vapor, may include at least a water-permeable membrane body that delimits at least one membrane body interior space, wherein at least one hydrophobic fluid is located in the membrane body interior space for receiving water, in particular water vapor, which exits the fluid flow and passes through the membrane body into the membrane body interior space.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: October 23, 2018
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Alexander Tremel, Uwe Lenk, Markus Ziegmann
  • Patent number: 9839880
    Abstract: A water treatment device using a hollow fiber membrane module is provided, including: a water container filled with raw water; a hollow fiber membrane module installed in the water container and provided with hollow fiber membranes therein to perform water treatment by a water pressure difference; and a raw water supplying part positioned on the water container, and configured to supply the raw water into the water container through the hollow fiber membrane module, in which the hollow fiber membrane module causes the raw water supplied from the raw water supplying part collide with the hollow fiber membrane to move the hollow fiber membrane, so that it is possible to minimize contamination of the hollow fiber membrane, minimize use of energy using electricity, and wash the hollow fiber membrane by a physical method.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: December 12, 2017
    Assignee: UNIVERSITY INDUSTRY FOUNDATION YONSEI UNIVERSITY WONJU CAMPUS
    Inventors: Soo Hong Noh, Jong Hun Lee, Danhong Kim, Jong chan Yi
  • Patent number: 9498753
    Abstract: The present invention is directed to a method of sealing the free end of a hollow fiber membrane for use in a single header filtration module by dipping the end of the membrane into a low-viscosity light-curable adhesive and curing the adhesive. The invention further encompasses the resulting sealed hollow fiber membrane with a diameter that is only slightly larger than the diameter of the unsealed membrane.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: November 22, 2016
    Assignee: Koch Membrane Systems, Inc.
    Inventors: Taylour Johnson, David Colby
  • Patent number: 9409130
    Abstract: A submerged-type hollow fiber membrane module and a method for manufacturing the same are disclosed, which is capable of realizing a great sealing strength between a module case and a bundle of hollow fiber membranes without an additional centrifugal molding apparatus. The method includes forming a bundle of hollow fiber membranes held together and fixed by a first potting material, wherein one end of each of the hollow fiber membranes is open; putting the bundle of hollow fiber membranes in a module case and fixing the bundle of hollow fiber membranes in the module case by forming a second potting material on the first potting material.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: August 9, 2016
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Moo-Seok Lee, Sung-Hak Choi
  • Patent number: 9283524
    Abstract: A gas separation membrane module is formed from a woven fabric of weft membrane hollow fibers and warp yarns. The membrane module includes an active hollow fiber region spanning the inner edges of the two tubesheets. The membrane module also includes two tubesheets formed by encapsulating membrane fiber on one or both ends. The tubesheet on the end includes a first sub-region adjacent the active fiber and a second sub-region extending from first sub-region to the outer face of the tubesheet. The spacing of the warp threads is relatively denser in the first sub-region than in the active region or the second sub-region.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 15, 2016
    Assignee: L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Tao Li, Edgar S. Sanders, Jr., Michael D. Bennett
  • Patent number: 9142851
    Abstract: A composite membrane suitable for use in an electrochemical cell, comprises layers of a hydrophilic material and of a second material having relatively high conductivity and which is also relatively susceptible to dehydration.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: September 22, 2015
    Assignee: ITM POWER (RESEARCH) LTD.
    Inventor: Donald James Highgate
  • Patent number: 9052063
    Abstract: A container for storing compressed gas includes a plurality of aligned glass capillaries extending into a tubesheet. Each of the capillaries has an open end flush with a front face of the tubesheet. An end cap having a gas outlet connectable to a compressed gas valve or conduit is fitted to the tubesheet in gas-tight fashion to form a high pressure space defined by inner surfaces of the capillaries, the front face of the tubesheet, and inner surfaces of the end cap.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: June 9, 2015
    Assignees: L'Air Liquide Société Anonyme Pour L'Étude, Et L'Exploitation Des Procedes Georges Claude C.En Ltd.
    Inventors: Pascal Tessier, Tao Li, Edgar S. Sanders, Jr., David P. Edwards, Francoise Barbier
  • 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
  • Patent number: 9018158
    Abstract: The invention provides a method of overcoming resistance to at least one antibiotic in a multidrug resistant bacterium, said method comprising contacting said bacterium with an alginate oligomer together with the antibiotic. The multidrug resistant bacterium may be on an animate or inanimate surface and both medical and non-medical uses and methods are provided. In one aspect the invention provides an alginate oligomer for use together with at least one antibiotic in treating a subject infected, suspected to be infected, or at risk of infection, with a multidrug resistant bacterium to overcome resistance to the antibiotic in said multidrug resistant bacterium. In another aspect the method can be used to combat contamination of a site with multidrug resistant bacteria, e.g. for disinfection and cleaning purposes.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: April 28, 2015
    Assignee: Algipharma AS
    Inventors: Edvar Onsoyen, Rolf Myrvold, Arne Dessen, David Thomas, Timothy Rutland Walsh
  • Patent number: 9017277
    Abstract: An implantable dialysis device with a related medical system for intracorporeal dialysis and ultrafiltration of blood, and methods of use are described. The medical system includes an extracorporeal module, a cutaneous module, and an implantable module. Features of the implantable module facilitate delivery and flow of blood and dialysate through the medical system. A filter pack within the implantable module performs dialysis and ultrafiltration of blood. System cleansing is also described.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: April 28, 2015
    Assignee: Medtronic, Inc.
    Inventors: SuPing Lyu, Thomas Edward Meyer, Mark Fredrick Daniels, Bryant J. Pudil
  • Patent number: 8974668
    Abstract: A membrane element consisting of a hollow fiber stack (HF stack) comprising a plurality of substantially equally spaced hollow fibers (HFs) comprising multiple alternate rows of HFs comprising first ends extending through and between contact structures comprising solid thermoset material, each HF consisting of a hydrophilic semipermeable membrane defining an elongated lumen, each HF comprising a portion that extends from one contact structure to an opposed contact structure, wherein the HFs in alternate rows are aligned with the spaces in adjacent rows, forming a hexagonal pattern comprising repeating adjacent and/overlapping hexagons, wherein each hexagon comprises a central hollow fiber (central HF) surrounded by six immediately adjacent HFs defining a hexagonal perimeter comprising six sides, the six immediately adjacent HFs being substantially equally spaced from one another and substantially equally spaced from the central hollow fiber, wherein the spacing is adapted to maintain a Reynolds' number of abo
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: March 10, 2015
    Inventor: Maher Isaac Kelada
  • Publication number: 20150053602
    Abstract: The present invention provides a bulk liquid container (1) for the storage and distribution of water to a community as drinking water. The container comprises a container housing for holding water, the housing having a substantially capsular form; an output valve (2) arranged to release water from the container; a water filter (101) arranged to filter water passing from the internal volume of the container out of the container through the output valve, the filter comprising one or more membranes and comprising a plurality of sub-groups of hollow fibres (61) which are effective to pass water in preference to air under the influence of a pressure differential; and a pump for raising the internal pressure of the container. The invention further provides a filter (101) for use in the container.
    Type: Application
    Filed: April 9, 2013
    Publication date: February 26, 2015
    Applicant: PRITCHARD IP LIMITED
    Inventor: Michael William Pritchard
  • Patent number: 8961790
    Abstract: A novel separator assembly for a spiral flow reverse osmosis apparatus is provided. In one embodiment, the separator assembly comprises a central core element comprising at least one permeate exhaust conduit and at least one concentrate exhaust conduit. Each exhaust conduit defines an exhaust channel and one or more openings allowing fluid communication between an exterior surface of the exhaust conduit and the exhaust channel, said exhaust conduits independently defining a cavity between said conduits. The cavity is configured to accommodate a first portion of a membrane stack assembly comprising at least one feed carrier layer, at least one permeate carrier layer, and at least one membrane layer. A first portion of the membrane stack assembly is disposed within the cavity, and a second portion of the membrane stack assembly is wound around the central core element and forms a multilayer membrane assembly disposed around the central core element.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: February 24, 2015
    Assignee: General Electric Company
    Inventors: Philip Paul Beauchamp, Michael Kent Cueman, Daniel Jason Erno, Todd Alan Anderson, Dean David Marschke
  • Publication number: 20150048019
    Abstract: A vertical pressurized immersion membrane filtration system includes at least one pressure vessel/tank and at least one layer of membrane modules sealed therein. Every layer has at least two parallel membrane modules, with space left between the membrane module and the pressure vessel/tank. The upper and lower ends of every membrane module have plates and the upper and lower membrane modules are hermetically connected. The plates separate the space in the pressure vessel/tank into two sealed end compartments and a middle compartment. The membrane module includes interior membrane fibers and an outer perforated supporting cylinder surrounding the membrane fibers. The pressure vessel/tank has end and middle water inlets/outlets. The pressure vessel/tanks are parallel. The multiple membrane modules work simultaneously, effectively increasing filtration efficiency. The filtration system can work in multiple operation modes, improving applicability thereof.
    Type: Application
    Filed: September 29, 2011
    Publication date: February 19, 2015
    Inventor: Huichun Zhang
  • 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: 20150034546
    Abstract: A cartridge type hollow fiber membrane module includes: a cartridge type hollow fiber membrane element including a hollow fiber membrane bundle, a distribution cylinder, and an adhesive resin portion; a module case including a module case main body portion which has at least one port corresponding to a supply outlet of filtrate or an undiluted solution on a side surface, and a header which has a port corresponding to a supply outlet of filtrate or an undiluted solution, and accommodating the cartridge type hollow fiber membrane element; a first sealing member disposed to come into contact with the distribution cylinder and the header on an external side of a boundary surface between the supporting portion and the adhesive resin portion; and a second sealing member disposed to come into contact with an outer circumference portion of the distribution cylinder and the module case main body portion.
    Type: Application
    Filed: February 14, 2013
    Publication date: February 5, 2015
    Applicant: TORAY INDUSTRIES, INC
    Inventors: Hayato Inuzuka, Kohei Fujii, Norihiro Takeuchi, Atsushi Kobayashi, Takashi Minitsuka
  • Patent number: 8945387
    Abstract: A hollow fiber membrane element may be used in a pressure vessel similar to those used with spiral wound elements, optionally as a replacement for a spiral wound element. A connecting sleeve is used to connect the insides of adjacent elements to each other or to one or more fittings in communication with the outside of the pressure vessel. The element has hollow fiber membranes suspended between two potting heads spaced apart by a cross flow tube that is open at the outside faces of both potting heads. The potting heads are each adapted to slide into an end of a connecting sleeve. A module has one or more hollow fiber elements located inside of a pressure vessel. At least one port is provided in communication between the outsides of the one or more elements and the outside of the vessel. An aerator may be provided on the bottom of the vessel.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: February 3, 2015
    Assignee: General Electric Company
    Inventor: Nicholas William H. Adams
  • Patent number: 8877062
    Abstract: The invention relates to extracorporeal blood circuits, and components thereof (e.g., hollow fiber membranes, potted bundles, and blood tubing), including 0.005% to 10% (w/w) surface modifying macromolecule. The extracorporeal blood circuits have an antithrombogenic surface and can be used in hemofiltration, hemodialysis, hemodiafiltration, hemoconcentration, blood oxygenation, and related uses.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: November 4, 2014
    Assignee: Interface Biologics, Inc.
    Inventors: Sanjoy Mullick, Weilun Chang, Hanje Chen, Mark Steedman, Roseita Esfand
  • Publication number: 20140319045
    Abstract: Hollow fiber cartridges and components and methods of their construction.
    Type: Application
    Filed: December 20, 2012
    Publication date: October 30, 2014
    Applicant: REFINE TECHNOLOGY, LLC
    Inventor: Jerry SHEVITZ
  • Patent number: 8858796
    Abstract: A membrane filtration assembly (10) including having a filtrate carrier (9) for minimizing backwash. The membrane filtration assembly includes a membrane module (5) having one or more permeable hollow membranes (6) supported therein by an upper header (7) and a lower header (8). The filtrate carrier (9) extends between the upper (7) and lower (8) headers to allow filtrate to be collected from either or both ends of membranes (6). A filtrate collection chamber (18) is associated with the upper (7) and lower headers (9) and in fluid communication with lumens of the membranes (6) for collecting filtrate withdrawn through said membrane lumens. A filtration chamber (11) is provided for receiving feed liquid to be applied to the surface of membranes (6) within the module (5). The filtration chamber (11) includes an open end for receiving the feed liquid. The open end is located beyond the height of the module (5) to enable gravity feed.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: October 14, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventors: David John Cox, Warren Thomas Johnson
  • Patent number: 8852439
    Abstract: A liquid filtration method and device, for example a drinking straw with a mouthpiece, and a bundle of hollow fibres. The open ends of the fibres are embedded in a base and provided in a compartment between the base and a liquid outlet. Water or other liquid flows into the inner volume of the hollow fibres and from there through their filtering membrane walls and into the compartment before the liquid flows out through the liquid outlet, for example the mouthpiece.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: October 7, 2014
    Assignee: LifeStraw SA
    Inventors: Daniel Frauchiger, Roelie Bottema, Mikkel Vestergaard Frandsen
  • Patent number: 8840788
    Abstract: The present invention provides a hollow fiber membrane where the membrane strength and pressure resistance to pressurization from the dialysate side is ensured, the retaining rate of water permeability after the repeated pressure load from outside is high, the resistance to the pressure from outside is excellent and the assembling property into module (low leakage rate at the adhered part) is satisfactory at the same time. The present invention also provides a method for manufacturing the same, and a blood purification module.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: September 23, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Makoto Ohno, Isamu Yamamoto, Takahito Sagara, Kimihiro Mabuchi, Tohru Uenishi, Shinya Koyama
  • 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
  • Patent number: 8808540
    Abstract: An aeration/backwash device (16) for use with a porous membrane filtration module (5) including one or more membranes (6) extending longitudinally between vertically spaced upper (7) and lower headers (8) into which the ends of the membranes are potted. The membranes (6) having a permeable wall which, in use, is subjected to a filtration operation wherein feed containing contaminant matter is applied to one side of the membrane wall and filtrate is withdrawn from the other side of the membrane wall. The aeration/backwash device (16) adapted to at least partially surround a portion of said membrane module (5) and including a communication chamber (17) having spaced through-openings (18, 19) in fluid communication with the chamber (17) and the membrane module (5).
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: August 19, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventor: Warren Thomas Johnson
  • Patent number: 8795526
    Abstract: A membrane filtration apparatus is provided in which a hollow fiber membrane element 1 including a water collecting cap 20 having a water collecting port and a groove and being engaged liquid-tightly with a bundle of a hollow fiber membrane is engaged with a frame 60 having supporting beams 65 to be fitted in the grooves. The engagement and the rotation of the hollow fiber membrane element 1 is possible merely by inserting the supporting beams 65 into the grooves formed in the water collecting cap 20.
    Type: Grant
    Filed: December 25, 2008
    Date of Patent: August 5, 2014
    Assignee: Toray Industries, Inc.
    Inventors: Hiroshi Matsumoto, Masaki Iwanaga
  • Patent number: 8790515
    Abstract: A method of filtering solids from a liquid suspension comprising providing a pressure differential across the walls of permeable, hollow membranes (5) immersed in the liquid suspension contained in a vessel (8), the liquid suspension being applied to the outer surface of the porous hollow membrane (5) to induce and sustain filtration through the membrane walls. Some of the liquid suspension passes through the walls of the membranes (5) to be drawn off as permeate from the hollow membrane lumens, and at least some of the solids are retained on or in the hollow membranes or otherwise as suspended solids within the liquid surrounding the membranes (5).
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: July 29, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventors: Fufang Zha, Zhiyi Cao
  • 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
  • Patent number: 8709253
    Abstract: The invention offers a separation membrane element that can be produced by a method in which a membrane-sealing portion is formed by, first, immersing end portions of hollow-fiber-shaped porous separation membranes in a resinous liquid and, then, curing the resin, that has a feature in that the membrane-sealing portion is formed of a casting resin and pores of the hollow-fiber-shaped porous separation membranes are filled with a pore-filling resin at the portion at which the membranes are in contact with the membrane-sealing portion, so that the casting resin is strongly bonded with the pore-filling resin, and that has the hollow-fiber-shaped porous separation membranes whose basal portions are flexible, so that breakage of the basal portions and leakage of gas or liquid are less likely to occur when in use; a separation membrane element that has a feature in that in the membrane-sealing portion, at least the surface at a side that is to be in contact with a liquid to be treated is formed of a thermosetting f
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: April 29, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Hideki Kashihara
  • Patent number: 8696909
    Abstract: A bioartificial kidney equivalent and a process for producing the bioartificial kidney equivalent. The hybrid bioartificial kidney comprises human proximal and distal renal tubule cells grown on particular synthetic membranes.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: April 15, 2014
    Assignee: Gambro Lundia AB
    Inventors: David Luttropp, Bernd Krause, Markus Neubauer, Andrea Schnell, Helmut Geiger, Juergen Bereiter-Hahn, Patrick Baer, Doris Deppisch
  • 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: 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
  • Patent number: 8640882
    Abstract: A compact fluid purification device includes a housing having an inlet for receiving unfiltered liquid and an open end and a first valve disposed within the inlet and being configured to only permit unfiltered liquid to flow into a hollow interior of the housing. The device has a plunger that is movable between a fully extended position and a fully retracted position. Movement of the plunger toward the fully extended position causes unfiltered liquid to be drawn into the interior of the housing and the device includes a second valve disposed within the outlet and being configured to only permit filtered liquid to be discharged from the plunger housing. The unfiltered liquid is filtered when the plunger is moved toward the fully retracted position causing the unfiltered liquid in the interior to flow into the inside of the filter elements and then across the filter elements and into the outlet.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: February 4, 2014
    Assignee: Nephros, Inc.
    Inventors: Gregory R. Collins, James Summerton
  • Patent number: 8636904
    Abstract: A hollow fiber membrane module, a hollow fiber membrane module unit, and a water treatment method. The module or the module unit enable the efficient contact of microorganisms on the surface of a membrane with a gas. The module and the unit have excellent durability. The hollow fiber membrane module is formed so that the end parts of sheet-form hollow fiber membranes are formed in a substantially rectangular shape and the end face of the anchoring member on a side where the hollow fiber membranes open is formed in a substantially circular shape. The hollow fiber membrane module unit is formed in such a manner that a plurality of modules is disposed. The water treatment method is used to purify treated water with the microorganisms adhered onto the outer surfaces of the hollow fiber membranes by using the module or the unit.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: January 28, 2014
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kenji Watari, Satoshi Takeda
  • Publication number: 20140021099
    Abstract: An oil circulation system and method for continuously purifying engine oil including an engine operably connected to an oil reservoir, wherein at least one stream of oil is conveyed from the oil reservoir to the engine via a conduit, and circulated through the engine and conduit via engine operating pressure and/or one or more pumps, and at least one membrane unit positioned in a path of the oil stream such that oil containing dissolved/emulsified droplets of water is fed continuously through the membrane unit. A cross flow hollow fiber module adapted to be positioned in a system for continuously purifying engine oil, the hollow fiber module having a central feed distributor tube, hollow fiber membranes positioned around the central feed distributor tube, end caps with ports for receiving and emitting a flow of sweep air, and optionally a shell casing, wherein the central feed distributor tube includes openings sized and positioned to allow oil to flowing into the feed distributor tube to flow out radially.
    Type: Application
    Filed: January 13, 2012
    Publication date: January 23, 2014
    Inventor: New Jersey Institute of Technology
  • Patent number: 8628662
    Abstract: The invention relates to a device for filtering a liquid, in particular water, comprising membrane filtering modules, connected by pipes to valves for controlling the flows of liquid travelling towards the modules and coming from same, including a first block made up of an assembly (14a) of membrane filtering modules, a second block made up of a system of valves (14b), and a third block made up of a group of intermediate pipes (14c) comprising an interface between the system of valves (14b) and the assembly of modules (14), only the interface (14c) requiring to be changed when changing the type of filtering modules, while the system of valves (14b) and the assembly of modules (14a) remain unchanged, except when changing the type of modules.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: January 14, 2014
    Assignee: Degremont
    Inventor: Frédéric Mirault
  • 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
  • Publication number: 20130306545
    Abstract: The hollow fiber membrane module has a hollow fiber membrane bundle composed of a plurality of hollow fiber membranes with an adsorption function, a housing that houses the hollow fiber membrane bundle, and partition members that partition the hollow fiber membrane bundle into a plurality of small bundles at an end of the hollow fiber membrane bundle, the partition members having penetrating sections that penetrate in the lengthwise direction of the hollow fiber membranes. The volume fill factor of the hollow fiber membranes is at least 30% and less than 70%. This can secure throughput capacity for the hollow fiber membrane module, while maintaining consistent adsorption capacity per unit membrane volume, thus ensuring high scalability.
    Type: Application
    Filed: December 27, 2011
    Publication date: November 21, 2013
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Naoyuki Shinohara, Yuta Sato
  • Patent number: 8557115
    Abstract: The present invention is directed to an alternative compact portable filtration device that can be used in remote locations and includes a single filtration cartridge that provides redundant filtration of the fluid (water). In particular, the device is a dual stage ultrafilter cartridge (apparatus) that is constructed and designed to provide a portable device that can be used in the field, such as during camping or military assignment, and offers two filtration stages (redundant filtration) within a single housing.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: October 15, 2013
    Assignee: Nephros, Inc.
    Inventors: Gregory R. Collins, James Summerton, Norman Barta
  • Patent number: 8540081
    Abstract: A hollow fiber membrane fluid transport device and its method of manufacture are disclosed wherein the fibers are comprised of Polytetrafluoroethylene (PTFE), and the potting materials are comprised of fluorocopolymer and or fluoroterpolymer based materials. The potting method described herein, 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: Grant
    Filed: March 16, 2011
    Date of Patent: September 24, 2013
    Assignee: Markel Corporation
    Inventors: Robert Edward Jerman, Cornelius Brown, Jr., Kenneth Donald Hobbs, Carlos Ruano, Charles Edward Wolanski
  • Patent number: 8540876
    Abstract: A permeate adapter is provided. The permeate adapter may be used within a pressure vessel. The permeate adapter includes a front portion and an oppositely disposed back portion. The front portion includes a permeate opening for receiving an end of a permeate passage tube of a membrane cartridge and for being in fluid communication with a permeate reservoir. The front portion and the back portion each include one or more fluid openings. Fluid passageways are connected between the one or more front portion fluid openings and the back portion fluid openings. The fluid passageways receive an end of a membrane cartridge at the front portion. At the back portion, the fluid passageways are in fluid communication with a fluid reservoir adjacent the back portion of the permeate adapter.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: September 24, 2013
    Assignee: UOP LLC
    Inventors: Steven M. Poklop, Christopher Naunheimer, Mark E. Schott
  • Patent number: 8518256
    Abstract: A membrane module includes at least one hollow fiber membrane; a first resin layer formed around an end of the at least one hollow fiber membrane; and a second resin layer chemically bound to the first resin layer, wherein the second resin layer is of greater flexibility than the first resin layer.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: August 27, 2013
    Assignee: Siemens Industry, Inc.
    Inventors: David John Cox, Fufang Zha, Joachim Muller, Cinzia Lea, George Schneider
  • Patent number: 8506806
    Abstract: A method of operating a membrane filtration module (5), the module (5) including one or more membranes (7) extending longitudinally between vertically spaced upper and lower headers (8, 9) into which the ends of the membranes (7) are potted. The membranes (7) have a permeable wall which is subjected to a filtration operation wherein feed containing contaminant matter is applied to one side of the membrane wall and filtrate is withdrawn from the other side of the membrane wall. At least one of the upper and/or lower headers (8, 9) has one or more openings (10) therein and the method including flowing the feed, at least in part, through the one or more openings (10) for application to the membrane wall. Apparatus for performing the method is also disclosed.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: August 13, 2013
    Assignee: Siemens Industry, Inc.
    Inventors: Thomas William Beck, Warren Thomas Johnson
  • Patent number: 8506808
    Abstract: A tubesheet, modules incorporating tubesheets and methods for making and using the same. In one embodiment the invention includes a tubesheet comprising: i) a plurality of aligned semi-permeable hollow fiber membranes each comprising a cylindrical porous structure surrounding a lumen and extending between a first and second end and further comprising a first segment located adjacent the first end and a second segment located adjacent to the second end and ii) a block of potting material including an interfacial surface. The first segment of the hollow fiber membrane is embedded within the block of potting material and the second segment extends from the interfacial surface of the block. The tubesheet further comprises a penetrating extension of potting material within the porous structure of the second segment of the hollow fiber membrane that extends along a length from the interfacial surface of the block to a distal end.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: August 13, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Scott T. Burr, Peter E. M. Aerts, Gavin D. Vogel, David J. Moll
  • 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