Removing Specified Material Patents (Class 210/651)
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Publication number: 20100203400Abstract: A passive humidifier membrane includes polyolefin with a plurality of pores, wherein the average pore size of the plurality of pores is 0.05 ?m to 0.4 ?m as established by a PMI Capillary Flow Porometer. The humidifier membrane is virtually airtight while providing a high transfer rate of water. Transfer of heat is also high. The humidifier membrane is particularly suitable for heat exchange and water transfer between fluids and, it is particularly useful for applications inside or outside fuel cells such as PEMFC. The membrane is also particularly useful in the application as humidifier for air or oxygen.Type: ApplicationFiled: October 9, 2007Publication date: August 12, 2010Applicant: Lydall Solutech B.V.Inventors: Gijsbertus Hendrikus Maria Calis, Adriaan Steenbakkers, Paul Osenar, Rich Formato, Paul Sabin, Seth Avis
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Patent number: 7771911Abstract: A technique to acquire a photoresist composition which can reduce occurrence of defects of a resist pattern after development is provided. Further, a technique to obtain a photoresist composition having excellent storage stability characteristics as a resist solution (storage stability); and a technique to obtain a photoresist composition which reduces the change of sensitivity and resist pattern size after treatment almost completely are provided. A photoresist composition containing a resin component (A), an acid-generating component (B) for generating an acid under exposure, and an organic solvent (C) is passed through a first filter 2a equipped with a first membrane having zeta potential of more than ?20 mV but no more than 15 mV in distilled water of pH 7.0.Type: GrantFiled: December 18, 2003Date of Patent: August 10, 2010Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Hideo Hada, Takeshi Iwai, Masaaki Shimazaki, Masaaki Muroi, Kota Atsuchi, Hiroaki Tomida, Hirokazu Ozaki
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Patent number: 7771599Abstract: Disclosed is an improved method for the remineralization of process water in a desalination system. The method sequesters carbon dioxide gas (CO2) from seawater or concentrate (brine) of desalination process via a gas transfer membrane. The sequestered carbon dioxide gas (CO2) is thereafter used in the production of soluble calcium bicarbonate (Ca(HCO3)2). The calcium bicarbonate (Ca(HCO3)2) adds hardness and alkalinity to the resulting process water.Type: GrantFiled: March 9, 2009Date of Patent: August 10, 2010Assignee: Doosan Hydro Technology, Inc.Inventors: Young Chul Choi, Chunwoo Lee, Elvira Fernandez Sanchis
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Publication number: 20100193438Abstract: There are disclosed a ceramic porous membrane formed with less membrane formation times and having less defects, a small and uniform thickness and a high flux, and a ceramic filter. A silica membrane is formed on a titania UF membrane as an ultrafiltration membrane (a UF membrane) formed on a porous base member which is a microfiltration membrane (also referred to as an MF membrane) and having an average pore diameter smaller than that of the porous base member, and the silica membrane has an average pore diameter smaller than that of the titania UF membrane, and does not substantially permeates the titania UF membrane.Type: ApplicationFiled: April 15, 2010Publication date: August 5, 2010Applicant: NGK Insulators, Ltd.Inventors: Manabu ISOMURA, Tatsuya Hishiki, Ichiro Wada
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Patent number: 7767467Abstract: A device for the separation of small particles or cells from a fluid suspension of the same is described. The device includes a coaxial tubular design in which the inner tube is a micro porous tube that allows the passage of liquids and certain particulates up to a certain size cut-off, and the outer tube allows for the collection of passed fluids. Inlet and outlet ports allow the introduction and flushing of components of interest. Embodiments of the device can be used for the separation of blood components, the sequestering of micro spheres used in micro-sphere-based immuno assay, and sample filtration. Other applications are not precluded. Another field of application for this device is in the separation of plasma from red blood cells. The red blood cells will not pass through the membrane due to their size, but plasma will.Type: GrantFiled: November 19, 2009Date of Patent: August 3, 2010Assignee: Global FIA, Inc.Inventors: Duane K. Wolcott, Graham D. Marshall
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Publication number: 20100187174Abstract: A method of fractionating a dispersion of oxidic nanoparticles wherein at least one step of the method is a membrane crossflow filtration step, the flow of the dispersion over the membrane being brought about by means of driven rotating parts; and dispersions of oxidic nanoparticles that are obtainable by the method.Type: ApplicationFiled: April 1, 2010Publication date: July 29, 2010Applicant: EVONIK DEGUSSA GmbHInventors: Roland WURSCHE, Goetz BAUMGARTEN, Wolfgang LORTZ, Michael KROELL
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Patent number: 7758533Abstract: A hemofiltration system and method to treat an Inflammatory Mediator Related Disease in a mammal, including chronic and acute diseases, include a hemofilter and an adsorptive device. The hemofilter removes ultrafiltrate from a blood stream extracted from the mammal to create a filtered blood stream and an ultrafiltrate stream. The adsorptive device may include one or more adsorbent materials and may be used to adsorb inflammatory mediators from the ultrafiltrate stream received from the hemofilter to create a post adsorption ultrafiltrate stream. The post adsorption ultrafiltrate stream may be selectively combined with the filtered blood stream and together with the filtered blood stream may be returned to the mammal.Type: GrantFiled: November 5, 2007Date of Patent: July 20, 2010Assignee: Immunocept, L.L.C.Inventor: James R. Matson
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Publication number: 20100170851Abstract: A method is provided for forming zeolite membranes in internal surfaces of a plurality of conduits in a cylindrical porous ceramic monolith, the conduits extending from one end of the monolith to the other and being disposed in a single annulus, said method including a step of: flowing a pre-treatment liquid (50) including a zeolite initiating agent into the conduits; causing at least part of a carrier liquid component of the treatment liquid to flow from the FIG. 4 conduits into and through the body of the monolith to the exterior; and causing zeolite crystals to be deposited in the porous internal surfaces of the conduits as the carrier liquid component flows into the monolith.Type: ApplicationFiled: May 23, 2008Publication date: July 8, 2010Applicant: Phoenix IPR LimitedInventors: Graham John Bratton, Colin Danny Murton
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Patent number: 7749387Abstract: This invention relates to the composition of an integrally-layered polymeric membrane and a process for utilizing the integrally-layered polymeric membrane components of a feedstream. More particularly, but not by way of limitation, this invention relates to the composition of an integrally-layered polymeric membrane and a process for utilizing the integrally-layered polymeric membrane in the separation of aromatics from a hydrocarbon based feedstream. The polymeric membranes of the present invention are fabricated by chemically crosslinking adjacent polymer membrane layers of the same or differing copolymer solutions to produce an integrally-layered polymeric membrane with improved separations properties.Type: GrantFiled: August 3, 2007Date of Patent: July 6, 2010Assignee: Exxonmobil Research and Engineering CompanyInventors: Craig Y. Sabottke, Bal K. Kaul, Dennis G. Peiffer
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Patent number: 7749385Abstract: The invention provides porous matrices that comprise one or more surfactants that can be used in non-aqueous environments.Type: GrantFiled: December 1, 2005Date of Patent: July 6, 2010Assignee: GE Osmonics Inc.Inventors: Steven D. Kloos, Brian Rudie, Leonard T. Hodgins
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Patent number: 7736516Abstract: A filter for the removal of substances from blood product has a porous element of a polymeric material consisting of a polyether-ester copolymer or of a polymer blend comprising said copolymer.Type: GrantFiled: July 1, 2004Date of Patent: June 15, 2010Assignee: Fresenius Hemocare Italia S.r.l.Inventors: Laura Zambianchi, Paolo Bonaguidi, Giorgio Mari
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Patent number: 7731854Abstract: An in situ system used for treating an oil and gas well drilling fluid and treating water after a well is completed. The system includes a fluid treatment unit used in a reserve pit and a water treatment unit disposed next to the pit. The fluid treatment unit includes a floating electrocoagulation unit in the reserve pit for destabilizing contaminates in the fluid and dropping out stable precipitates. The clear treated fluid is then pumped, using a submersible pump, to the water treatment unit. The water treatment includes a number of components including a pre-filter, an activated carbon filter and a heat exchanger for first treating the fluid. The filtered and heated fluid is then piped into a reverse osmosis unit for removing salt and any remaining minerals found therein. From the reverse osmosis unit, approximately 70 to 80% of the filtered water is cleaned and piped to a clean water storage tank for reuse.Type: GrantFiled: February 15, 2007Date of Patent: June 8, 2010Assignee: H2O Tech, Inc.Inventor: Robert J. Herbst
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Publication number: 20100136596Abstract: A device is provided by means of which biomolecules in samples in a volume range from <1 ?l to 500 ?l can be received, treated and stored in a quick, reproducible and loss-free manner as easily, effortlessly and practically as possible, and without any risk of damaging the device. The device includes sample vessels that are configured, in terms of size and shape, as dimensionally and positionally stable capillaries that are open at both ends, the longitudinal walls of which are completely or partially made of a semi-permeable membrane.Type: ApplicationFiled: March 7, 2008Publication date: June 3, 2010Inventors: Heidrun Rhode, Stefan Kreusch, Helga Endmann, Michael Haendel, Guenther Sammler, Edith Zimmermann
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Polymer Membranes Prepared from Aromatic Polyimide Membranes by Thermal Treating and UV Crosslinking
Publication number: 20100133192Abstract: The present invention discloses a new type of high performance polymer membranes prepared from aromatic polyimide membranes by thermal treating and crosslinking and methods for making and using these membranes. The polymer membranes were prepared from aromatic polyimide membranes by thermal treating under inert atmosphere followed by crosslinking preferably by using a UV radiation source. The aromatic polyimide membranes were made from aromatic polyimide polymers comprising both pendent hydroxy functional groups ortho to the heterocyclic imide nitrogen and cross-linkable functional groups in the polymer backbone. The membranes showed significantly improved selectivity and permeability for gas separations compared to the aromatic polyimide membranes without any treatment. The membranes can be fabricated into any convenient geometry and are not only suitable for a variety of liquid, gas, and vapor separations, but also can be used for other applications such as for catalysis and fuel cell applications.Type: ApplicationFiled: March 27, 2009Publication date: June 3, 2010Inventors: Chunqing Liu, Peter K. Coughlin, Man-Wing Tang, Raisa Serbayeva, Lubo Zhou -
Patent number: 7727399Abstract: A device, system and method for exchanging components between first and second fluids by direct contact in a microfluidic channel. The fluids flow as thin layers in the channel. One of the fluids is passed through a filter upon exiting the channel and is recycled through a secondary processor which changes the fluid's properties. The recycled fluid is reused for further exchange. The filter excludes blood cells from the recycled fluid and prevents or limits clogging of the filter. The secondary processor removes metabolic waste and water by diafiltration.Type: GrantFiled: May 22, 2007Date of Patent: June 1, 2010Assignee: The Trustees of Columbia University in the City of New YorkInventors: Edward F. Leonard, Alan C. West, Christian P. Aucoin, Edgar E. Nanne
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Publication number: 20100126933Abstract: A part washing apparatus includes a centrifugal filter and an ultra filter provided as a single base unit. A washing chamber is provided to enclose one or more industrial parts for cleaning with a washing solution, which is collected in a washer bath. The washing solution is then pumped through a centrifugal filter to remove contaminants from the washing solution and subsequently pumped through an ultra filter a filter configured to remove further contaminants from the washing solution.Type: ApplicationFiled: November 26, 2008Publication date: May 27, 2010Applicant: Toyota Motor Engineering & Manufacturing NAInventors: John F. DALY, Charles HARRIS
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Patent number: 7722758Abstract: Process for separating colour bodies and/or asphalthenic contaminants from a hydrocarbon mixture using a membrane having a feed side and a permeate side, by contacting the hydrocarbon mixture with the feed side of the membrane, and by removing at the permeate side a hydrocarbon permeate having a reduced content of colour bodies and/or asphalthenic contaminants, wherein the membrane is arranged in a spirally wound membrane module.Type: GrantFiled: October 10, 2005Date of Patent: May 25, 2010Assignee: Shell Oil CompanyInventors: Johannes Leendert Willem Cornelis Den Boestert, Jeroen Van Westrenen
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Patent number: 7714181Abstract: Process for separating colour bodies and/or asphalthenic contaminants from a hydrocarbon mixture using a membrane having a feed side and a permeate side, by contacting the hydrocarbon mixture with the feed side of the membrane, wherein between the feed and permeate sides of the membrane a pressure difference is applied, thereby passing part of the hydrocarbon mixture from the feed side to the permeate side and obtaining at the permeate side of the membrane a hydrocarbon permeate having a reduced content of colour bodies and/or asphalthenic contaminants, and by removing the hydrocarbon permeate from the permeate side of the membrane, wherein during selected time intervals the removal of hydrocarbon permeate from the permeate side of the membrane is stopped so that the pressure difference over the membrane is temporarily substantially lowered.Type: GrantFiled: April 14, 2004Date of Patent: May 11, 2010Assignee: Shell Oil CompanyInventors: Johannes Leendert Willem Cornelis Den Boestert, Jeroen Van Westrenen
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Publication number: 20100101953Abstract: The methods for producing microchannel chips of the present invention comprise the steps of shielding substrate surfaces on which groove-like channels have been formed, using a mask that exposes the channels, and then forming polymer membranes on the exposed surfaces of the substrates; and the step of laminating cover materials onto the side of the substrate surfaces on which the channels have been formed.Type: ApplicationFiled: March 3, 2005Publication date: April 29, 2010Applicants: National Institute of Advanced Industrial Science and Technology, Katayanagi Institute, Toppan Printing Co., Ltd.Inventors: Kenji Yokoyama, Satoshi Koide, Koji Sakairi, Kazuyoshi Yano, Isao Karube
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Publication number: 20100101997Abstract: A separation apparatus using a membrane for diafiltration, which provides precise fractionation of a target substance by monitoring and regulating permeability of the target substance based on measurement values and analytical values indicating separation status, such as physical values and concentration of a permeate liquid, a circulating liquid and an internal circulating liquid in a membrane device. A diafiltration process including adding a cleaning liquid to an treating liquid which contains multiple target substances and extracting a target substance into the permeate liquid supplied from a membrane separation apparatus to fractionate the target substance from other target substances remaining in a residual liquid.Type: ApplicationFiled: March 19, 2008Publication date: April 29, 2010Applicant: TSUKISHIMA KANKYO ENGINEERING LTD.Inventor: Yasuhiro Tateishi
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Patent number: 7705193Abstract: The invention relates to a process for conversion of a gasoline-range hydrocarbon feed into a gasoline fraction with a higher octane rating than that of the feedstream, and a gasoil fraction with a cetane number higher than 45, including the following steps: a) a membrane separation step (B) applied to the hydrocarbon feed under conditions enabling selective separation of the majority of the linear olefins present in said feed and constituting the ? fraction, the fraction containing the majority of the branched olefins, termed the ? fraction, constituting a gasoline with a high octane rating, greater than that of the feed; b) an oligomerisation step (C) applied to the linear olefins (? fraction) contained in the effluent stream from the membrane separation step (B) under moderate oligomerisation conditions; c) a distillation separation step (D) applied to the effluent stream arising from the oligomerisation step in at least two fractions; d) a hydrogenation step (E) applied to one of the fractions obtained atType: GrantFiled: June 6, 2005Date of Patent: April 27, 2010Assignee: Institut Francais du PetroleInventors: Patrick Briot, Arnaud Baudot, Vincent Coupard, Stéphane Morin, Alain Methivier
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Patent number: 7695627Abstract: The present invention provides tangential flow filtration devices and methods for enriching a heterogeneous mixture of blood constituents for leukocytes by removal of non-leukocyte blood constituents. In one particular embodiment the device can provide a composition enriched in monocytes. One embodiment includes a remover unit (1) having a crossflow chamber (3) separated by a microporous filter (5) from a filtrate chamber (4), the remover unit (1) also having a tangential flow inlet (6), a fluid outlet (7) for a fluid enriched in leukocytes and a filtrate outlet (8).Type: GrantFiled: June 19, 2003Date of Patent: April 13, 2010Assignee: Northwest Biotherapeutics, Inc.Inventors: Marnix L. Bosch, Paul C. Harris, Steven J. Monahan, Allen Turner, Alton L. Boynton, Patricia A. Lodge
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Patent number: 7686777Abstract: An in-vitro blood plasma lipids filtering method includes the following steps: separating out the blood plasma from the blood collection; flushing a filtering device with saline solution; controlling the pressure of the separated blood plasma; passing the blood plasma to the filtering device for filtering out lipids; controlling the temperature of the filtered blood plasma; and feeding the blood plasma back to the blood. The method is clearly effective and accurate, quick response indication, securer and safer, more tolerant, and the treatment time is short.Type: GrantFiled: February 28, 2005Date of Patent: March 30, 2010Assignee: Shanghai Jiangxia Blood Technology Co., Ltd.Inventors: Heping Huang, Siukwan Chang
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Patent number: 7682329Abstract: A method and apparatus for red blood collection and filtration is provided wherein a red blood cell collection assembly provides for leukoreduction filtration concurrent with or soon after the red blood cell separation and collection procedure. Such procedures involve filtering the separated red blood cells in a diluted state after and/or prior to flushing the filter with storage solution. Storage solution may thus be passed through the leukoreduction filter before, with and/or after the RBCs have been filtered therethrough. The red blood cell collection, filtration and storage assembly is preferably preconnected to a blood component separation disposable assembly, including, for example, a centrifuge vessel and a blood removal/return assembly for removing blood from a donor, passing the blood to the centrifuge vessel for separation of the blood into components for collection and providing for filtration of the separated red blood cell component.Type: GrantFiled: April 6, 2006Date of Patent: March 23, 2010Assignee: CaridianBCT, Inc.Inventors: Bruce W. Gibbs, Jon Herskovits
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Patent number: 7678277Abstract: The invention provides porous matrices that comprise one or more anionic surfactants that can be used in non-aqueous environments.Type: GrantFiled: December 2, 2005Date of Patent: March 16, 2010Assignees: GE Osmonics, Inc., Cargill, IncorporatedInventors: Steven D. Kloos, Keith Schwartz, Brian Rudie
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Publication number: 20100059440Abstract: The invention relates to a process for making porous cross-linked charged cellulosic polymeric membranes capable of binding to a target molecule. The invention provides methods for separating target molecules from other components in a solution comprising use of membranes obtainable by the process of the invention. The method has particular utility in separating proteins and nucleic acids from cell lysates and cultures.Type: ApplicationFiled: February 7, 2008Publication date: March 11, 2010Applicant: GE HEALTH CARE BIO-SCIENCES ABInventors: Asa Rudstedt, Andreas Axen, Nils Norrman, Anders Larsson
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Publication number: 20100059441Abstract: The present invention is directed to a membrane for aromatics separation that is stable in an alcohol containing environment. The polymeric membrane is a epoxy amine based membrane.Type: ApplicationFiled: August 21, 2009Publication date: March 11, 2010Inventors: Abhimanyu O. Pattil, Timothy D. Shaffer, David T. Ferrughelli, Beth A. Winsett, Benjamin A. McCool, Randall D. Partridge
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Publication number: 20100051553Abstract: A method for reducing the amount of Mercury in a liquid stream, such as an aqueous wastewater or process water stream or a non-aqueous liquid hydrocarbonaceous stream is disclosed wherein the liquid stream is contacted with an effective amount of a Hg-complexing agent, the mercury contaminants in the liquid stream form insoluble complexes with the Hg-complexing agent, then the insoluble complexes are removed from the liquid stream via microfiltration or ultrafiltration techniques including the use of submerged hollow fiber ultrafilters or the like.Type: ApplicationFiled: August 29, 2008Publication date: March 4, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Gerald C. Walterick, JR., Stephen R. Vasconcellos, Deborah Gereaghty
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Patent number: 7670289Abstract: A fluid loss detection device for dressings at pre-existing port sites, catheter sites, operative sites, ostomy sites, drain sites, line sites such as those utilized in hemodialysis, wound sites, or other areas for which monitoring of fluid or blood loss is medically indicated. The detection device includes a patch having a primary loop circuit and an early warning alarm circuit loop. In one embodiment, closure of the early warning alarm circuit loop activates an alarm. The alarm may be connected directly to the patch and sound locally or may be activated remotely via radio transmission. The detection device may additionally cause a medical device such as a hemodialysis system to shut down.Type: GrantFiled: August 1, 2007Date of Patent: March 2, 2010Inventor: Kenneth Shawn McCall
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Publication number: 20100044314Abstract: A method for making a polysulfone having zwitterionic functionality comprising reacting a piperazine amine functionalized polysulfone with sultone is described as are blends with other polymers. Membranes containing polysulfones having zwitterionic functionality are also provided. Membranes thus formed are used in hemodialysis, hemofiltration, and water purification.Type: ApplicationFiled: August 25, 2008Publication date: February 25, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Yanshi Zhang, Gary William Yeager, Hongyi Zhou, Daniel Steiger
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Patent number: 7662212Abstract: The invention relates to polymeric ultrafiltration or microfiltration membranes of, for instance, Halar, PVDF or PP, incorporating PVME or vinyl methyl ether monomers. The PVME may be present as a coating on the membrane or dispersed throughout the membrane or both. The membranes are preferably hydrophilic with a highly asymmetric structure with a reduced pore size and/or absence of macrovoids as a result of the addition of PVME. The PVME maybe cross-linked. The invention also relates to methods of hydrophilising membranes and/or preparing hydrophilic membranes via thermal or diffusion induced phase separation processed.Type: GrantFiled: July 8, 2004Date of Patent: February 16, 2010Assignee: Siemens Water Technologies Corp.Inventors: Daniel Mullette, Joachim Muller, Neeta Patel
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Publication number: 20100025330Abstract: Membranes for filtration by size exclusion are formed from open-ended nanotubes embedded in a polymeric matrix. The matrix forms a layer whose thickness is substantially less than the average length of the nanotubes, allowing the nanotubes to be randomly oriented throughout the matrix while providing channels extending through the layer for the selective passage of molecular species or particles based on size.Type: ApplicationFiled: June 25, 2009Publication date: February 4, 2010Applicant: NanOasisInventors: Timothy V. Ratto, Jason K. Holt, Alan W. Szmodis
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Patent number: 7655146Abstract: The method comprises providing a leukocyte-removing filter having a thickness of 9.0 mm to 9.4 mm, an air permeability pressure drop of 300 Pa to 700 Pa, and effective filtration area of 50 cm2 to 70 cm2 which comprises a flat and flexible container having an inlet port and an outlet port and a sheet-like leukocyte-removing-filter material with a thickness of 8.2 mm to 8.6 mm disposed to divide the container into an inlet-port side chamber and an outlet-port side chamber, providing a pair of volume restriction boards disposed outside of the inlet port side external surface and the outlet port side external surface of the flexible container, having the distance between the volume restriction boards at the portion where the volume restriction boards facing each other sandwich the leukocyte-removing filter being in a range from [thickness of leukocyte-removing filter+0.5 mm] to [thickness of leukocyte-removing filter+2.Type: GrantFiled: February 15, 2007Date of Patent: February 2, 2010Assignee: Asahi Kasei Medical Co., Ltd.Inventors: Makoto Ozeki, Kentaro Yajima
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Publication number: 20100018925Abstract: Non-coherent UV-treated porous halopolymer membranes are disclosed.Type: ApplicationFiled: October 2, 2009Publication date: January 28, 2010Applicant: PALL CORPORATIONInventors: Abdoulaye Doucoure, Richard F. Salinaro, Yoshiki Mizuno
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Patent number: 7651616Abstract: This invention relates to an apparatus for removing solutes from a solution using nano-filtration means to provide a treated wine.Type: GrantFiled: November 23, 2005Date of Patent: January 26, 2010Inventor: Bryan R. Tudhope
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Publication number: 20100006504Abstract: A liquid separation device is provided, and is capable of suppressing the lowering of filtration function due to an increase in flow channel resistance of permeated liquid which results in a separation membrane falling in a groove of a permeated liquid flow channel material along with accompanied breakage of the separation membrane surface. A permeated liquid flow channel material is disposed on the back side of a separation membrane composed of a sheet-like material having a linear groove and a linear crest alternately arrayed on one surface or both surfaces, wherein a groove width of the linear groove in the sheet-like material is 10 to 200 ?m, and a ratio of the groove width of the linear groove to the pitch of the linear groove is 0.45 or more.Type: ApplicationFiled: March 23, 2007Publication date: January 14, 2010Applicant: TORAY Industries , Inc.Inventors: Yoshifumi Odaka, Toshimasa Katayama, Tsunemitsu Kitagawa
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Patent number: 7641612Abstract: A blood loss detection device for a hemodialysis system having a blood intake line, a dialysis machine including a pump, with the dialysis machine in communication with the blood intake line, and a blood return line in communication with the dialysis machine. The detection device includes a patch having an exterior edge and an opening through the patch forming a target for receipt of the return blood line. A slit through the patch extends between the exterior edge and the opening. A primary loop circuit terminates at two ends at the slit. An early warning alarm circuit loop terminates at two ends at the slit. An emergency shut-down circuit loop terminates at two ends at the slit. A modular connector connects the patch to an alarm activated by the early warning alarm circuit and to a switch mechanism activated by the shut-down circuit in order to shut down the dialysis machine and the pump.Type: GrantFiled: January 17, 2006Date of Patent: January 5, 2010Inventor: Kenneth Shawn McCall
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Patent number: 7641799Abstract: A process in which isotopes of the same element belonging to the alkaline earth metals, transition elements and heavy metals having an atomic mass of less than 209, in particular lanthanide metals, are separated in an aqueous medium by treating an aqueous medium.Type: GrantFiled: November 21, 2007Date of Patent: January 5, 2010Assignee: Framatome ANPInventors: Marc Lemaire, Jacques Foos, Alain Guy, Frédéric Chitry, Stéphane Pellet-Rostaing, Olivier Vigneau
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Publication number: 20090321355Abstract: Membranes for filtration by size exclusion are formed from open-ended nanotubes embedded in a polymeric matrix. The matrix forms a layer whose thickness is substantially less than the average length of the nanotubes, allowing the nanotubes to be randomly oriented throughout the matrix while providing channels extending through the layer for the selective passage of molecular species or particles based on size.Type: ApplicationFiled: November 12, 2008Publication date: December 31, 2009Applicant: NANOASIS TECHNOLOGIES, INC., a corporation of the state of DelawareInventors: Timothy V. Ratto, Jason K. Holt, Alan W. Szmodis
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Patent number: 7638059Abstract: The present invention relates to an oxygen isotope separation system and a method therefor. More specifically, the invention relates to a newly invented pressure-driven AGMD (Air Gap Membrane Distillation) system applied to a multi-stage membrane distillation cells which can produce an oxygen isotope effectively and economically, and a method therefor. The invention provides an oxygen isotope separation system including a number of Air Gap Membrane Distillation (AGMD) permeation cells connected in series to separate a feed into a product and a tail, wherein each of the AGMD cell is connected at a tail outlet with a reflux pump and at a product outlet, whereby the product from (i?1)th cell and the tail from (i+1)th cell are pumped as the feed into ith cell.Type: GrantFiled: February 2, 2007Date of Patent: December 29, 2009Assignee: Korea Atomic Energy Research InstituteInventors: JaeWoo Kim, Hwa-Rim Choi, Dae-Shik Chang, Yun-Young Choi
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Patent number: 7625762Abstract: A device for the separation of small particles or cells from a fluid suspension of the same is described. The device includes a coaxial tubular design in which the inner tube is a micro porous tube that allows the passage of liquids and certain particulates up to a certain size cut-off, and the outer tube allows for the collection of passed fluids. Inlet and outlet ports allow the introduction and flushing of components of interest. Embodiments of the device can be used for the separation of blood components, the sequestering of micro spheres used in micro-sphere-based immuno assay, and sample filtration. Other applications are not precluded. Another field of application for this device is in the separation of plasma from red blood cells. The red blood cells will not pass through the membrane due to their size, but plasma will.Type: GrantFiled: March 12, 2006Date of Patent: December 1, 2009Assignee: Global FIA, Inc.Inventors: Duane K. Wolcott, Graham D. Marshall
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Patent number: 7622045Abstract: Hydrophilic cross-linked polymeric membranes, when prepared according to the process of the present invention, are unique in character in as much as the steady state permeability of the membrane has been altered by blending and cross-linking polyalkyl amines and polyalcohols. To obtain desired results, the compositions must contain at least 10% polyalkyl amines, with preferred amounts of polyalkyl amines in the composition being in excess of 40%, with over 50% polyalkyl amine concentration by weight.Type: GrantFiled: February 22, 2006Date of Patent: November 24, 2009Assignee: The United States of America as represented by the Admin. of Environmental Prot. AgcyInventors: Leland Vane, Ravi Ponangi, Vasudevan Namboodiri
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Patent number: 7618538Abstract: The present invention relates to a procedure for elimination of boron from sea-water by reverse osmosis membranes characterized in that it comprises: adding to sea-water a composition consisting of at least one metal together with at least one antiscaling-dispersant agent, and a second phase in which an alkalinizing agent is added until a pH of between 8-9.5 is achieved, which can furthermore consist of a third phase in which the fluoride content of the sea-water is increased following the second phase, or a third phase in which a high molecular weight alcohol is added to the water.Type: GrantFiled: January 16, 2007Date of Patent: November 17, 2009Assignee: Acciona Agua, S.A.U.Inventors: Enric Palacios Doñaque, Manuel Fariñas Iglesias, Enric Palacios Jimenez
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Patent number: 7615028Abstract: An extracorporeal blood treatment system including: a blood circuit having a first blood passage coupled at a first end to a first end of a blood treatment device and a second blood passage coupled at a first end to a second end of the treatment device, wherein the first and second blood passages each have a second end adapted to be coupled to a vascular system of a human patient; a first blood pump connectable to the first blood passage and a second blood pump connectable to the second blood passage, wherein said first and second blood pumps are adapted to move blood through the first and second blood passages in a first direction and in a reverse direction, and a pump controller operatively connected to the first and second blood pumps, said controller operates the blood pumps to cyclically move blood through the first and second blood passages in the first direction and the reverse direction.Type: GrantFiled: December 3, 2004Date of Patent: November 10, 2009Assignee: CHF Solutions Inc.Inventor: John J. O'Mahony
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Patent number: 7615158Abstract: A method and a device to increase the efficiency of dialysis for the removal from blood of substances that are more or less tightly bound to carriers such as albumin. According to the invention this is accomplished by a simultaneous significant increase of the flow rate of the dialysis fluid and of the area of the membrane that separates the blood from the dialysis fluid, compared to conventional dialysis.Type: GrantFiled: March 25, 2003Date of Patent: November 10, 2009Assignee: Gambro Lundia ABInventors: Jan Sternby, Berit Sternby
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Patent number: 7611872Abstract: The invention relates to an improved method for the production of D-pantothenic acid and/or salts thereof and use thereof as adjunct for animal feedstuffs.Type: GrantFiled: February 20, 2002Date of Patent: November 3, 2009Assignee: BASF AktiengesellschaftInventors: Christine Beck, Hans-Peter Harz, Daniela Klein, Martin Leemann, Markus Lohscheidt, Stefan Bitterlich, Hartwig Voβ
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Patent number: 7608189Abstract: A device for removing bacterial lipopolysaccharides and lipoteichoic acids from blood or plasma in an extracorporeal perfusion system contains, in a housing that can be incorporated into the perfusion system, a hollow fiber material that is suitable for the selective removal of bacterial lipopolysaccharides and lipoteichoic acids, the device being arranged in such a way that the blood or plasma entering through a first opening of the housing must pass through the hollow fiber material before it leaves through a second opening of the housing and is directed to the rest of the perfusion circuit.Type: GrantFiled: June 3, 2004Date of Patent: October 27, 2009Assignee: B. Braun Medizintechnologie GmbHInventors: Dietrich Seidel, Karl-Siegfried Boos
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Patent number: 7601263Abstract: The invention relates to a composite with a separation-active membrane layer and a supporting membrane, a process for the production of the same and a process for using the same. The composite membrane according to the invention is distinguished by the fact that the separation-active membrane layer comprises a polymer hardened by electromagnetic radiation with wave length that is less than 800 nm and/or by electron beams. The process according to the invention is distinguished by the fact that a layer of a solution of a polymer that can be hardened by electromagnetic radiation with a wavelength that is less than 800 nm and/or by electron beams and an initiator substance is applied to a supporting membrane and subsequently is hardened by electromagnetic radiation and/or by electron beams. The use according to the invention serves to retain low molecular weight substances from organic solutions.Type: GrantFiled: July 3, 2006Date of Patent: October 13, 2009Assignee: GKSS-Forschungszentrum Geesthacht GmbHInventors: Katrin Ebert, Joachim Koll, Jan Wind
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Patent number: 7591951Abstract: A fuel filter for cleaning fuel, particularly for engines of motor vehicles, having a filter housing (10) with an inlet (14), an outlet (15), and a filter element (16) for cleaning the fuel situated between the inlet (14) and the outlet (15). A collecting space (20) for water separated from the fuel additionally is provided in the filter housing (10), and a water discharge device (23) having a housing (24) is also arranged in the filter housing. Discharge device housing (24) has an inlet (33) and an outlet (28), between which a membrane (25) that is permeable for water molecules is situated, and the water-permeable membrane (25) has channel structures (26) which are closed in a sealed manner at their upper ends.Type: GrantFiled: December 7, 2005Date of Patent: September 22, 2009Assignee: Mann & Hummel GmbHInventors: Jochen Linhart, Michael Micke, Michael Fasold
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Publication number: 20090217777Abstract: Methods of concentrating an analyte that is in liquid and method of detecting an analyte in a liquid are disclosed. Methods of screening a liquid for the presence of an analyte are also disclosed. Processes comprising continuously collecting a sample of fluid throughout the process and analyzing the sample are disclosed as are processes comprising treating ultrafilter membranes. Devices and systems for concentrating an analyte that is in liquid and for screening a liquid for an analyte are disclosed as well as devices and systems for concentrating an analyte from a continuous sample are disclosed.Type: ApplicationFiled: March 3, 2008Publication date: September 3, 2009Inventors: William P. Hanson, Maureen A. Dyer, Robert E. Hetrick, Jennifer A. Oberholtzer