Diffusing Or Passing Through Septum Selective As To Material Of A Component Of Liquid Patents (Class 210/649)
  • Patent number: 8021530
    Abstract: Electric fields are applied parallel to and/or vertical to the interfaces on adjacent microfluid lamellae made of nonmiscible media containing said biomolecules and bioparticles to which they have different physico-chemical affinities in order to separate biomolecules and bioparticles and the biomolecules and bioparticles are electrophoretically separated.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: September 20, 2011
    Assignee: Istitut fur Mikrotechnik Mainz GmbH
    Inventor: Steffen Hardt
  • Patent number: 8021549
    Abstract: A method and apparatus for desalinating seawater which uses an ammonia bicarbonate forward osmosis desalination process. Seawater is pumped through one side of a membrane assembly. A draw solution is pumped through the other side of the membrane assembly. The draw solution withdraws water molecules from the seawater through the membrane into the draw solution. A draw solution separator receives a heated draw solution which then decomposes into ammonia, carbon dioxide and water. Potable water is separated from ammonia has and carbon dioxide gas. The ammonia gas and carbon dioxide gas are recombined with a portion of the potable water stream to reform the ammonium bicarbonate draw solution.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: September 20, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Richard Eugene Kirts
  • Patent number: 8012116
    Abstract: We have developed a novel method of brain surface dialysis that reduces intracranial pressure and modifies movement of extracellular fluid in a rat model of brain injury. A chamber with a semipermeable membrane at the site of brain contact is perfused with a hyperosmolar solution (e.g. 15% dextran, inulin, hydroxyethyl starch). It is also capable of providing local brain cooling. In principle, osmotic forces draw water and small molecules from the injured brain into the dialysis chamber thereby reducing brain swelling. The dialysate does not move into the brain.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: September 6, 2011
    Inventors: Marc Ronald Del Bigio, Alexander Viktor Shulyakov
  • Patent number: 7985331
    Abstract: The liquid hydrocarbon stream including COS is introduced via line 1 into membrane contactor CM to be placed in contact, through membrane M, with the aqueous alkanolamine solution arriving via line 3. The COS contained in the hydrocarbon stream is absorbed by the aqueous alkanolamine solution. The liquid hydrocarbons from which the COS has been removed are evacuated from CM via line 2. The aqueous solution containing COS is sent via line 4 to zone R to be regenerated. The compounds released during regeneration, particularly COS and COS-derived products, are evacuated from zone R via line 5. The regenerated aqueous alkanolamine solution is recycled via line 3 into membrane contactor CM.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: July 26, 2011
    Assignee: Institut Francais du Petrole
    Inventors: Arnaud Baudot, Renaud Cadours, Raphaël Huyghe, Elsa Jolimaitre, Pascal Mougin, Eszter Toth
  • Patent number: 7955506
    Abstract: An energy-efficient process for dewatering an aqueous organic solution includes using freely available solar energy to concentrate a draw solution within a reservoir. The draw solution is used in conjunction with a membrane to remove water from the organic solution in a forward osmosis process. The draw solution is diluted by the osmosis process, and returned to the reservoir to be re-concentrated and reused in the osmosis process.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: June 7, 2011
    Assignee: Chevron U.S.A. Inc.
    Inventors: Paul F. Bryan, Shabbir Husain, Prakhar Prakash
  • Patent number: 7910002
    Abstract: The invention refers to method for selectively binding and separating at least one component from whole blood or a body fluid, whereby the blood or body fluid is allowed to pass through a rigid integral separation matrix without being excluded therefrom. The matrix has a porous structure with a pore size ranging from 5 micron to 500 micron as well as an active surface ranging from 0.5 cm2 to 10 m2, and the surface is able to bind such components.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: March 22, 2011
    Assignee: Alteco Medical AB
    Inventors: Bo Johnson, Lenart Lunggren
  • Patent number: 7910003
    Abstract: A polymer alloy has been developed comprising a polysulfone and a vinyl lactam polymer. The resulting alloy has excellent thermal characteristics and even in the presence of substantial quantities in vinyl lactam polymers, has solvent resistance to both organic and aqueous solvent materials. The materials, when dissolved in solvents, can be spun from a variety of solvents into a variety of useful fiber materials. The resulting fine fiber, microfiber and nanofiber materials have excellent thermal and chemical resistance for a variety of fiber applications. The polymer alloys of the invention can be spun into nanofiber mats that can act as a filtration media and can also be combined into conventional substrate materials for fabrication into filter structures.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: March 22, 2011
    Assignee: Donaldson Company, Inc.
    Inventors: Ismael Ferrer, Richard S. Cardinal, Veli Kalayci
  • Patent number: 7901578
    Abstract: A method and system for treating an aqueous stream in the production of hydrocarbon are provided. An osmotic operation is performed between the stream of produced water and a stream of draw fluid to transfer water from the produced water to the draw fluid, thereby diluting the draw fluid to form a stream of diluted draw fluid and concentrating the produced water to form a stream of concentrated produced water. The concentration of the produced water can facilitate the subsequent removal of contaminants therefrom, and, in some cases, the diluted draw fluid can be re-used, e.g., for injection into the well of the hydrocarbon production operation or as a fertilizing fluid.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: March 8, 2011
    Assignee: Chevron U.S.A. Inc.
    Inventor: Randall Boyd Pruet
  • Patent number: 7879243
    Abstract: A process for removing a solvent from a first solution, said process comprising positioning a selective membrane between the first solution and a second solution having a higher osmotic potential than the first solution, such that solvent from the first solution passes across the membrane to dilute the second solution, and extracting solvent from the second solution, wherein the membrane has an average pore size of at least 10 Angstroms, and wherein the second solution contains solute species that are too large to pass through the pores of the membrane.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: February 1, 2011
    Assignee: Surrey Aquatechnology Limited
    Inventors: Abdulsalam Al-Mayahi, Adel Sharif
  • Patent number: 7875758
    Abstract: Embodiments of the present invention generally disclose membrane-based systems and methods for the separation of propylene and propane that overcome certain issues associated with prior art devices and take advantage of a temperature drop across the associated separation membrane.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: January 25, 2011
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude Et l'Exploitation des Procedes George Claude
    Inventors: Edgar S. Sanders, Jr., Frederic P. C. M. Noel
  • Publication number: 20110005341
    Abstract: The present invention relates to a filtering apparatus (1) for filtering a fluid (3) comprising the filtering apparatus. The filtering apparatus comprises a filter element (2) for filtering the fluid (3) and an adhesive capillary structure (5) for generating capillary forces, wherein the adhesive capillary structure (5) is attached to the filter element (2) by using an adhesive property of the adhesive capillary structure (5). The adhesive capillary structure is preferentially made of a double-sided tape, which is adhesive on two sides. The filtering apparatus comprises further preferentially a filtering location (6), at which the filter element (2) is located, and a detection location (7), at which a property of the fluid (3) is detectable, wherein the capillary structure (5) is formed such that the filtered fluid is guided from the filtering location (6) to the detection location (7).
    Type: Application
    Filed: March 5, 2009
    Publication date: January 13, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Jacobus Hermanus Maria Neijzen, Ricky Kamps
  • Patent number: 7867214
    Abstract: In a peritoneal dialysis embodiment of the present invention, spent dialysate from the patient's peritoneal cavity passes, along a patient loop, through a dialyzer having a membrane that separates waste components from the spent dialysate, wherein the patient loop returns fresh dialysate to the patient's peritoneal cavity. The waste components are carried away in a second regeneration loop to a regeneration unit or sorbent cartridge, which absorbs the waste components. The regeneration unit removes undesirable components in the dialysate that were removed from the patient loop by the dialyzer, for example, excess water (ultrafiltrate or UF), toxins and metabolic wastes. Desirable components can be added to the dialysate by the system, such as glucose and electrolytes. The additives assist in maintaining the proper osmotic gradients in the patient to perform dialysis and provide the necessary compounds to the patient.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: January 11, 2011
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Robert W. Childers, David S. Brown, Ramesh Wariar, Sujatha Karoor, Shahid Din, Leo Martis, Cody Buchmann, Paul Soltys
  • Patent number: 7850853
    Abstract: The invention discloses a kind of porous membrane filtration component for treating water, specifically it discloses a kind of suspending porous hollow fiber membrane bundle for treating highly turbid waste water. The component includes some porous hollow fiber membrane yarns and casting heads arranged at both ends of respective yarns, wherein the connections between the said casting heads and membrane filtration module are flexible connections, at least one end of the flexible connection the cast header is connected with a hollow tube or cord, and the membrane bundle hangs on the said membrane filtration module, suspending freely. The invention provides a suspending porous hollow membrane bundle that can effectively remove contaminants adhered to the surface of the membrane yarns, makes its membrane yarns difficult to rupture, has a longer service life, and produces water with steady quality.
    Type: Grant
    Filed: July 4, 2005
    Date of Patent: December 14, 2010
    Assignee: Zhejiang Environmental Engineering Company Limited
    Inventors: Yang Wu, Xiang Li, Zhiming Tong
  • Patent number: 7850859
    Abstract: A method of treating low-pressure untreated drinking water includes providing a low-pressure water filter device, running low-pressure untreated drinking water from a source of low-pressure untreated drinking water through a low-pressure water filter of the low-pressure water filter device, removing bacteria and viruses from the low pressure untreated drinking water at a level of Filter Bacteria Log Removal of greater than about 2 logs and a Filter Viruses Log Removal of greater than about 1 log, and filling a storage housing with treated drinking water at greater than about 5 mL/min. The low-pressure water filter device may include a connector for connecting to an untreated drinking water source, a low-pressure water filter comprising mesoporous activated carbon particles and a storage housing. The average fluid contact time with the low-pressure water filter may be greater than about 2 seconds.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: December 14, 2010
    Assignee: The Procter & Gamble Company
    Inventors: John D. Tanner, David James Emmons, Richard P. Riedel, Michael Donovan Mitchell, Dimitris Ioannis Collias
  • Patent number: 7846864
    Abstract: New types of photocatalyst materials are disclosed together with methods for preparing and using these materials, as well as air treatment systems incorporating such materials. The photocatalyst materials of this invention consist essentially of very small particles of a first-metal oxide, the first-metal being a metal that exhibits photo-induced semiconductor properties, having ions of a second-metal dispersed throughout its lattice structure, the second-metal being selected from the group of dopant metals. Such photocatalyst materials are prepared by the steps of mixing first-metal and second-metal precursors, removing nonessential ions from the mixture, drying the resulting product, and calcinating the dried product to produce the completed photocatalyst material.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: December 7, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Seok Ham, Son Ki Ihm, Joo Il Park, Kwang Min Choi, Kwang Eun Jeong
  • Patent number: 7837879
    Abstract: Ultrafiltration may be effectively used to produce visbreaker feeds of improved quality which enable the visbreaker to be operated at higher severity with higher yields of distillable products. A heavy oil feed stream is separated by ultrafiltration or membrane separation into a permeate fraction and a retentate fraction by contacting the heavy oil feed with the first side of a porous membrane separation element in a membrane separation zone. The permeate fraction, comprised of materials which pass selectively through the porous membrane element, is retrieved and at least a portion of it is subjected to visbreaking with the improved liquid yield, especially of lighter distillate fractions. The retentate fraction can be retrieved from the first side of the porous membrane and can also be subjected to visbreaking.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: November 23, 2010
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Daniel P. Leta, Leo D. Brown
  • Patent number: 7833419
    Abstract: Non-coherent UV-treated porous halopolymer membranes are disclosed.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: November 16, 2010
    Assignee: Pall Corporation
    Inventors: Abdoulaye Doucoure, Richard F. Salinaro, Yoshiki Mizuno
  • Publication number: 20100243567
    Abstract: The present invention discloses a new type of high performance polymer membranes derived from aromatic polyimide membranes and methods for making and using these membranes. The polymer membranes described in the present invention were derived from aromatic polyimide membranes by crosslinking followed by thermal treating. 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 high performance polymer membranes showed significantly improved permeability for gas separations compared to the aromatic polyimide membranes without any treatment. The high performance polymer membranes also showed significantly improved selectivity for gas separations compared to the thermal-treated but non-UV-crosslinked aromatic polyimide membranes.
    Type: Application
    Filed: March 27, 2009
    Publication date: September 30, 2010
    Inventors: Chunqing Liu, Raisa Serbayeva, Man-Wing Tang, Lubo Zhou, Peter K. Coughlin
  • Patent number: 7789847
    Abstract: 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: Grant
    Filed: August 21, 2007
    Date of Patent: September 7, 2010
    Assignee: CaridianBCT, Inc.
    Inventors: Bruce W. Gibbs, Jon Herskovits
  • Patent number: 7785548
    Abstract: Disclosed is a fuel filter for removing sulfur containing compounds from an internal combustion fuel stream. In one embodiment, the fuel filter comprises at least one column comprising an adsorbent. In one exemplary embodiment the adsorbent is capable of removing sulfur containing compounds, especially sulfur containing aromatic compounds, from fuels used in internal combustion engines, especially diesel fuels. Also disclosed is an apparatus for extending the life cycle of a post combustion emission control device. In one exemplary embodiment, the apparatus comprises a fuel filter for removing sulfur containing compounds from an internal combustion fuel stream and an emission control device. Finally, a method for removing sulfur containing compounds from an internal combustion fuel stream is disclosed.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: August 31, 2010
    Assignee: Honeywell International Inc.
    Inventors: Ronald P. Rohrbach, Peter D. Unger, Gary B. Zulauf, Daniel E. Bause, Russ Johnson, David R. Rockwell
  • Patent number: 7780852
    Abstract: A system for producing energy includes a solvent chamber, a pressure chamber and a semi-permeable barrier separating the solvent chamber from the pressure chamber. The solvent chamber holds a solvent, and the pressure chamber hold a solute solution comprising a solute dissolved in a solvent. The semi-permeable barrier is permeable to solvent molecules and impermeable to solute molecules. Solvent molecules effuse across the semi-permeable barrier into the solute solution of the closed pressure chamber to increase the pressure of the pressure chamber, thereby generating energy in the form of hydrostatic pressure. A conversion device may convert the increased pressure in the pressure chamber to energy. The solute solution may be expelled and recycled after use.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: August 24, 2010
    Assignee: Effusion Dynamics, LLC
    Inventor: Irving W. DeVoe
  • Patent number: 7749394
    Abstract: Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of filter particles consisting of mesoporous activated carbon wherein at least a portion of the plurality of filter particles is at least partially coated with silver or a silver-containing material. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL/g and about 2 mL/g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: July 6, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
  • Patent number: 7740765
    Abstract: Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of filter particles consisting of mesoporous activated carbon. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL/g and about 2 mL/g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.4 mL/g and less than about 3 mL/g, and a ratio of the sum of the mesopore and macropore volumes to the total pore volume of the filter particles is greater than about 0.3.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: June 22, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
  • Patent number: 7740766
    Abstract: Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous wood activated carbon filter particles and particles selected from the group consisting of mesoporous wood activated carbon filter particles coated entirely with a cationic polymer, mesoporous wood activated carbon filter particles partially coated with a cationic polymer, and mixtures thereof. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL/g and about 2 mL/g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: June 22, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Michael Donovan Mitchell, Dimitris Ioannis Collias, David William Bjorkquist, Piyush Narendra Zaveri, Matthew Morgan Woolley
  • Patent number: 7727399
    Abstract: 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: Grant
    Filed: May 22, 2007
    Date of Patent: June 1, 2010
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Edward F. Leonard, Alan C. West, Christian P. Aucoin, Edgar E. Nanne
  • Patent number: 7708890
    Abstract: Environmentally protective Method of treating an aqueous radioactive fluid (AF) in a nuclear reactor cycle or radwaste system to selectively capture or remove radioactive isotopes in a reduced quantitative package to minimize radwaste generated and revitalize neutron absorption capacity of nuclear reactor coolant by separately carrying away boron constituents, when B10 is later added.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: May 4, 2010
    Assignee: Diversified Technologies Services, Inc.
    Inventors: Charles E. Jensen, Dennis A. Brunsell, Larry E. Beets
  • Patent number: 7686777
    Abstract: 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: Grant
    Filed: February 28, 2005
    Date of Patent: March 30, 2010
    Assignee: Shanghai Jiangxia Blood Technology Co., Ltd.
    Inventors: Heping Huang, Siukwan Chang
  • Patent number: 7682329
    Abstract: 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: Grant
    Filed: April 6, 2006
    Date of Patent: March 23, 2010
    Assignee: CaridianBCT, Inc.
    Inventors: Bruce W. Gibbs, Jon Herskovits
  • Patent number: 7670289
    Abstract: 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: Grant
    Filed: August 1, 2007
    Date of Patent: March 2, 2010
    Inventor: Kenneth Shawn McCall
  • Publication number: 20100044308
    Abstract: Open-cell foam based on a melamine-formaldehyde condensation product, a polyurethane or a polyimide, which has been modified with hydrophobins, a method of producing such foams, and the use thereof for absorbing organic liquids, as leakage and bleeding protection for liquid stores, for liquid-liquid separation and as matrix for carrying out chemical and/or biological processes.
    Type: Application
    Filed: March 4, 2008
    Publication date: February 25, 2010
    Inventors: Ulf Baus, Thorsten Montag, Claus Bollschweiler, Thomas Subkowski, Marvin Karos, Armin Alteheld, Hans-Jürgen Quadbeck-Seeger, Vath Bernhard
  • Patent number: 7655145
    Abstract: Method and system for processing of a liquid (“contaminant liquid”) containing water and containing urine and/or other contaminants in a two step process. Urine, or a contaminated liquid similar to and/or containing urine and thus having a relatively high salt and urea content is passed through an activated carbon filter to provide a resulting liquid, to remove most of the organic molecules. The resulting liquid is passed through a semipermeable membrane from a membrane first side to a membrane second side, where a fortified drink having a lower water concentration (higher osmotic potential) than the resulting liquid is positioned. Osmotic pressure differential causes the water, but not most of the remaining inorganic (salts) contaminant(s) to pass through the membrane to the fortified drink. Optionally, the resulting liquid is allowed to precipitate additional organic molecules before passage through the membrane.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: February 2, 2010
    Assignee: United States Government as represented by the Administrator of the National Aeronautics and Space Administration (NASA)
    Inventors: Sherwin J. Gormly, Michael T. Flynn
  • Patent number: 7645387
    Abstract: Method of maximizing resin utilization and optimizing reverse osmosis performance to polish an aqueous or radwaste fluid. The method provides resin scavenging of targeted isotopes and exposes filter media and resin to a higher influent activity concentration to enable higher waste loading and longer life of resin while protecting downstream reverse osmosis system from high concentration of contaminants. An aqueous waste feedstream is processed through steps of filtering, demineralizing, and reverse osmosis; and the feedstream is separated into permeate and reject streams for recycling and evaluation, respectively. The permeate stream is recycled in ways that permit it to return to a supply area for recycle reuse or discharge.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: January 12, 2010
    Assignee: Diversified Technologies Services, Inc.
    Inventors: Charles E. Jensen, Dennis A. Brunsell, Larry E. Beets
  • Patent number: 7641612
    Abstract: 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: Grant
    Filed: January 17, 2006
    Date of Patent: January 5, 2010
    Inventor: Kenneth Shawn McCall
  • Patent number: 7615028
    Abstract: 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: Grant
    Filed: December 3, 2004
    Date of Patent: November 10, 2009
    Assignee: CHF Solutions Inc.
    Inventor: John J. O'Mahony
  • Patent number: 7611630
    Abstract: A membrane-permeation test for evaluating pharmaceutical compositions is described. The method comprises the following steps: (1) providing a microporous membrane having a plurality of pores, the membrane having a feed side and a permeate side, wherein the feed side of the membrane is in fluid communication with the feed solution, and wherein the permeate side of the membrane is in fluid communication with a permeate solution; (2) administering a pharmaceutical composition to an aqueous solution to form a feed solution; and (3) measuring the concentration of drug in the permeate solution; wherein the feed side of the membrane is hydrophilic, and/or wherein the permeate solution comprises an organic fluid.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: November 3, 2009
    Assignee: Bend Research, Inc.
    Inventors: Walter Christian Babcock, Dwayne Thomas Friesen, Scott Baldwin McCray
  • Publication number: 20090211976
    Abstract: 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: Application
    Filed: May 6, 2009
    Publication date: August 27, 2009
    Inventors: Dietrich SEIDEL, Karl-Siegfried BOOS
  • Patent number: 7560029
    Abstract: An energy efficient desalination process that does not produce waste products involves the extraction of water from a first solution, such as seawater, by using a second concentrated solution to draw the water from the first solution across a semi-permeable membrane. By manipulating the equilibrium of the soluble and insoluble species of solute within the second solution in favor of the soluble species of the solute, a saturated second solution can be used to generate osmotic pressure on the first solution. Also, by adjusting the equilibrium in favor of the less soluble species after the water has been drawn from the first solution, a portion of the solute can easily be precipitated out. Heating the second solution decomposes the solute into its constituent gasses. The constituent gasses and precipitated solute may be recycled through the process to affect the changes in equilibrium and eliminate waste products.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: July 14, 2009
    Assignee: Yale University
    Inventor: Robert Mc Ginnis
  • Patent number: 7517455
    Abstract: A method of extracting ethanol from a feed solution using a liquid-liquid extraction system including an outer chamber and an inner chamber. The outer chamber is adapted to contain one of a feed solution and a liquid extractant and defines a containment region. The inner chamber is adapted to contain the other of the feed solution and the liquid extractant within a lower portion of the inner chamber. The inner chamber is defined by a microporous membrane sleeve that internally maintains a frame. Upon final assembly, at least the lower portion of the inner chamber is positioned within the containment region of the outer chamber such that the microporous membrane sleeve establishes an extraction interface between contents of the inner and outer chambers.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: April 14, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Dan L. Fanselow, Todd W. Johnson
  • Patent number: 7517453
    Abstract: A microvascular network device comprising: a substrate; at least one microchannel; at least one opening to the microchannel for sample entry; at least one opening to the microchannel for sample exit; and an aspirator which causes the sample to traverse the microchannel.
    Type: Grant
    Filed: March 1, 2003
    Date of Patent: April 14, 2009
    Assignee: The Trustees of Boston University
    Inventors: Mark W Bitensky, Tatsuro Yoshida, Sergey S Shevkoplyas
  • Patent number: 7514000
    Abstract: A system and method for integrating microfluidic components in a microfluidic system enables the microfluidic system to perform a selected microfluidic function. A capping module includes a microfluidic element for performing a microfluidic function. The capping module is stacked on a microfluidic substrate having microfluidic plumbing to incorporate the microfluidic function into the system. The microfluidic element may comprise a matrix having an affinity for selected molecules in a sample. The matrix binds, reacts with and/or retains the selected molecules without affecting other molecules in the sample.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: April 7, 2009
    Assignee: Cytonome, Inc.
    Inventors: John R. Gilbert, Manish Deshpande, Jaishree Trikha
  • Patent number: 7501063
    Abstract: A collecting apparatus includes a syringe device, a filtering device and a power system. The syringe device contains a sample, and the sample has a plurality of nanoparticles mixed with fluids. The filtering device is connected to the syringe device for collecting the nanoparticles. The power system is coupled with the syringe device for pushing the sample into the filtering device to filter out the nanoparticles.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: March 10, 2009
    Inventors: Tsung-Ming Tsao, Ming-Kuang Wang, Pan-Ming Huang
  • Patent number: 7494809
    Abstract: A method for automated cell enrichment preparation where biological cells are injected into a first subchamber and flowed through the first subchamber, through a large pore filter and into a second subchamber so that the large pore filter retains particles large particles in the first subchamber, while the biological cells pass through the first filter into the second subchamber and are retained by a small pore filter. After clearing, the biological cells are stained. A solvent exchange leaves the biological cells in solvent and they are released into a concentration module where a portion of the solvent is removed to form an enriched concentrated cell suspension.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: February 24, 2009
    Assignee: VisionGate, Inc.
    Inventors: Alan C. Nelson, Florence W. Patten
  • Patent number: 7468281
    Abstract: Simultaneous sample purification, enrichment and analysis of pharmaceuticals, illicit drugs, pollutants, biotechnological products, synthetic organic reaction products and food/flavor ingredients from complex matrices can be performed using porous hollow fiber or porous-disk liquid-membrane devices. The devices are part of a multi-well (e.g. 96-well) plate. The devices can be used for selective separation and enrichment of complex mixtures containing trace levels of analytes, and can be used in tandem with analytical instruments which routinely handle multiple samples under high throughput screening conditions. A multi-well/multi-vial plate can into state-of-the-art HPLC or GC sampling systems or LC/MS or GC/MS instruments. Samples can be enriched several orders of magnitude and can directly be withdrawn from the fiber and injected into the chromatographic instruments. Alternatively, these enriched samples can be introduced directly into MS, CE or other detection devices.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: December 23, 2008
    Assignee: Varian, Inc.
    Inventors: Krishna Kallury, Joy Fan, Knut Rasmussen, Stig Pedersen-Bjergaard
  • Publication number: 20080308494
    Abstract: A sampling apparatus and method for sampling is provided that achieves automatic, aseptic, extractive sampling of fluid samples from fluid sources containing high solids and/or high viscosity fluid without failing due to adverse interactions between the fluid and the sampling device such as clogging or fouling due to mechanical means or to physicochemical reactions between the fluid and the materials of construction of the sample device.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 18, 2008
    Inventor: George E. Barringer, JR.
  • Publication number: 20080287524
    Abstract: A method of purifying a surfactant for use in a pharmaceutical formulation, which comprises mixing the surfactant with a solvent and bringing said mixture into contact with a semi-permeable membrane so as to allow impurities present in the surfactant and having a molecular weight lower than the molecular weight cut-off of the membrane to pass through the membrane, whilst retaining the purified surfactant.
    Type: Application
    Filed: February 10, 2006
    Publication date: November 20, 2008
    Inventors: Constantin Busoi, Maria Rotaru, Bogdan-Mihai Oghina, Mariana Surmeian
  • Patent number: 7452405
    Abstract: A system for producing an auxiliary fuel stream containing a low concentration of sulfur compounds from a primary fuel stream includes a first separation stage to separate a portion of a primary fuel stream into a first vapor permeate stream and a first retentate stream, a first separation stage partial condenser connected to the first vapor permeate stream condensing a portion of the first vapor permeate stream into a first liquid stage stream and a first vapor stage stream, and a second separation stage partial condenser condensing a portion of the first vapor stage stream into a second liquid stage. The first vapor permeate stream is preferable sent through a vapor phase reactive desulfurization catalyst reactor to condition any sulfur compounds present into species that can be easily separated from the fuel stream.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: November 18, 2008
    Assignee: Intelligent Energy, Inc.
    Inventors: Kandaswamy Duraiswamy, Richard Root Woods
  • Patent number: 7452404
    Abstract: A process and system for separating a fuel stream containing a low concentration of sulfur compounds from a primary fuel stream is disclosed. The process includes isolating a stage-one permeate stream and a stage-one retentate stream from the primary fuel stream, evaporating the stage-one permeate stream at a vacuum, and isolating a stage-two permeate stream and a stage-two retentate stream from the stage-one permeate stream. The stage-two retentate stream is a fuel stream containing low concentrations of sulfur compounds. The system includes a fuel supply, a stage-one separator for separating a fuel stream into a stage-one permeate stream and a stage-one retentate stream, a stage-two separator, a first supply line connecting a portion of the fuel supply to the stage-one separator, and a second supply line connecting the stage-one separator permeate stream to the stage-two separator.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: November 18, 2008
    Assignee: Intelligent Energy, Inc.
    Inventors: Kandaswamy Duraiswamy, Richard Root Woods
  • Patent number: 7427358
    Abstract: A for preparing Tyrosol and/or Hydroxytyrosol from oil mill wastewaters. includes: a) Microfiltration (MF), Ultrafiltration (UF). Nanofiltration (NF) and Reverse Osmosis (RO) of the OMW; b) Separation of Tyrosol, Hydroxytyrosol and other phenolic compounds from the concentrated RO; c) Oxidation of the obtained Tyrosol to Hydroxytyrosol in the presence of methyl rhenium trioxide and of hydrogen peroxide in a protic solvent.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: September 23, 2008
    Assignee: Lachifarma s.r.l. Laboratorio Chimico Farmaceutico Salentino
    Inventors: Luigi Villanova, Luciano Villanova, Gianluca Fasiello, Alessandro Merendino
  • Publication number: 20080226528
    Abstract: The product of a molten alkali metal metalate phase separation can be processed into a purified metal from a metal source. Metal sources include native ores, recycled metal, metal alloys, impure metal stock, recycle materials, etc. The method uses a molten alkali metal metalate as a process medium or solvent in purifying or extracting high value metal or metal oxides from metal sources. Vitrification methods using the silicate glass separation phase can be prepared as is or can be prepared with a particulate phase distributed throughout the silica glass phase and encapsulated and fixed within the continuous glass phase. Tungsten metal can be obtained from an alkali metal tungstate. A typically finely divided tungsten metal powder can be obtained from a variety of tungsten sources including recycled tungsten scrap, tungsten carbide scrap, low grade tungsten ore typically comprising tungsten oxide or other form of tungsten in a variety of oxidation states.
    Type: Application
    Filed: December 7, 2007
    Publication date: September 18, 2008
    Inventor: RODNEY KIETH WILLIAMS
  • Patent number: RE42315
    Abstract: The present invention provides a nanostructured device comprising a substrate including nanotroughs therein; and a lipid bilayer suspended on or supported in the substrate. A separation method is also provided comprising the steps of supporting or suspending a lipid bilayer on a substrate; wherein the substrate comprises nanostructures and wherein the lipid bilayer comprises at least one membrane associated biomolecule; and applying a driving force to the lipid bilayer to separate the membrane associated biomolecule from the lipid bilayer and to drive the membrane associated biomolecule into the nanostructures.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: May 3, 2011
    Assignee: STC.UNM
    Inventors: Gabriel P. Lopez, Steven R. J. Brueck, Linnea K. Ista