Bound, Fused Or Matted, E.g., Porous Shapes, Sponges, Etc. Patents (Class 210/496)
  • Patent number: 10974203
    Abstract: A ceramic membrane filter includes a porous substrate including cells through which a fluid flows, an intermediate membrane formed on the porous substrate, and a separation membrane formed on the intermediate membrane. In this ceramic membrane filter, the percentage of the number of cells having cracks with a size of 4 ?m or less relative to the total number of cells is 9% or less.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 13, 2021
    Assignee: NGK Insulators, Ltd.
    Inventors: Koji Hieda, Muneyuki Iwabuchi
  • Patent number: 10814261
    Abstract: Filter media, such as electret-containing filtration media for filtering gas streams (e.g., air), are described herein. In some embodiments, the filter media may be designed to have desirable properties such as stable filtration efficiency over the lifetime of the filter media, increased normalized gamma, relatively low pressure drop (i.e. resistance), and/or relatively low basis weight. In certain embodiments, the filter media may be a composite of two or more types of fiber layers where each layer may be designed to enhance its function without substantially negatively impacting the performance of another layer of the media. For example, one layer of the media may be designed to have a relatively low basis weight and/or a relatively high air permeability, and another layer of the media may be designed to have stable filtration efficiency and/or a relatively high efficiency throughout the filter media's lifetime.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: October 27, 2020
    Assignee: Hollingsworth & Vose Company
    Inventors: Sudheer Jinka, Bruce Smith, Mark A. Gallimore
  • Patent number: 10391473
    Abstract: The invention is directed to a polymer-protected sorbent that is at least partially covered by, or in contact with, a polymer that acts to protect or shield the sorbent from the surrounding environment, such as a liquid or gas stream within which the sorbent is being used. The sorbent is a sorbent material made of sorbent particles and can be used to remove certain chemical species, such as trace level toxic species, from a given liquid or gas, such as a liquid or gas stream in an industrial process, such as wet flue gas desulfurization process or a wastewater treatment process.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: August 27, 2019
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Ramsay Chang, Joseph A. Swisher, Timothy G. Ebner, Kevin M. Fisher
  • Patent number: 10233515
    Abstract: An apparatus may comprise a degassing system and a treatment station. The treatment station may comprise a shell, a refractory disposed in the shell, and insulation disposed between the shell and the refractory. The refractory may comprise a first plurality of slots, a second plurality of slots, and a trough. The first plurality of slots may be upstream from the degassing system and the second plurality of slots may be downstream from the degassing system. A first skim brick may be slideably disposed in a first one of the first plurality of slots and a second skim brick may be slideably disposed in a first one of the second plurality of slots. A first filter may be slideably disposed in a second one of the first plurality of slots and a second filter may be slideably disposed in a second one of the second plurality of slots.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: March 19, 2019
    Assignee: Southwire Company, LLC
    Inventors: Victor F. Rundquist, Kevin S. Gill
  • Patent number: 10073091
    Abstract: A lateral flow assay device includes a substrate having a top surface, as well as a sample receiving area disposed upon the top surface. At least one fluid flow path extends along the substrate from the sample receiving area, wherein the sample receiving area can be placed in contact with a peripheral reservoir formed at a sample addition area to draw sample therefrom in a controlled manner. The device can further include a reagent area that is designed to promote uniform dissolution of a deposited detection material by a sample moved through the device along the fluid flow path as well, as a flow channel configure to promote mixing of sample and reagent and an absorbing or wicking zone configured to affect various flow characteristics.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: September 11, 2018
    Assignee: Ortho-Clinical Diagnostics, Inc.
    Inventors: Zhong Ding, Philip C. Hosmier, Edward R. Scalice, Daniel P. Salotto, David A. Heavner
  • Patent number: 9951980
    Abstract: A spherical filter drier for an HVACR system includes a generally spherical shell and a core that is fixed position relative to the shell. The shell has a first opening and a second opening in fluid communication with one another across the core. The core includes a media that removes contaminants from fluid flowing from the first opening through the core to the second opening. The spherical shell may be a monolithic shell, or formed from a pair of generally hemispherical shells.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: April 24, 2018
    Assignee: Parker-Hannifin Corporation
    Inventors: Christopher Michael Reeves, David Derner, Matthew Thomas Sutterfield, Daniel Stoddard, Carol Marquart
  • Patent number: 9623504
    Abstract: Systems and methods are provided for improved brazing. A system includes a gap filling compound (GFC). The GFC includes a brazing alloy. The system also includes a GFC retention screen. The GFC retention screen configured to be disposed over the GFC to retain the GFC within the gap during brazing. The GFC retention screen is also configured to enable gas to escape from the GFC during brazing.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: April 18, 2017
    Assignee: General Electric Company
    Inventors: Junyoung Park, Jason Robert Parolini
  • Patent number: 9327246
    Abstract: There is provided a honeycomb-shaped ceramic separation-membrane structure having higher pressure resistance than conventional ones and being capable of reducing production costs. The honeycomb-shaped ceramic separation-membrane structure is provided with a honeycomb-shaped base material, an intermediate layer, and a separation layer. At least part of a ceramic porous body has a structure where aggregate particles are bonded to one another by an inorganic bonding material component. In the ceramic separation-membrane structure, an internal pressure fracture strength capable of fracturing the structure by application of water pressure inside the cells is 7 MPa or more.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: May 3, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Makoto Teranishi, Makoto Miyahara, Makiko Ichikawa, Hideyuki Suzuki
  • Patent number: 9321016
    Abstract: The present invention aims to provide a honeycomb-shaped ceramic porous body where the strength reduction upon forming a separation layer is less than conventional porous bodies. The ceramic porous body is provided with a honeycomb-shaped base material and an intermediate layer. At least a part of the ceramic porous body has a structure where aggregate particles are bonded to one another by an inorganic bonding material component. In the ceramic porous body, the intermediate layer thickness, which is the thickness of the intermediate layer, is 100 ?m or more and 500 ?m or less, the base material thickness at the shortest portion between the cells, but excluding the intermediate layer and the separation layer is 0.51 mm or more and 1.55 mm or less, and the ratio of the base material thickness to the intermediate layer thickness is 2.5 or more.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: April 26, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Makoto Teranishi, Makoto Miyahara, Makiko Ichikawa, Hideyuki Suzuki
  • Patent number: 9306232
    Abstract: A filtration device for a fuel cell system is provided. The filtration device includes a filter adapted to receive a reactant for a fuel cell. The filter includes a molecular sieve material adapted to separate a contaminant from the reactant supplied to the fuel cell. A membrane electrode assembly having the filter integrally formed therewith, and a fuel cell stack having the filter disposed adjacent at least one of the end plates of the fuel cell stack, are also provided.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: April 5, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Kelly O'Leary, Sean Mackinnon, Michael Budinski
  • Publication number: 20150060372
    Abstract: Porous hollow fiber membranes having a low molecular weight cut-off, processes for their production, and their use for separation tasks in the fields of biotechnology, pharmaceutical technology and food processing.
    Type: Application
    Filed: March 4, 2013
    Publication date: March 5, 2015
    Applicant: GAMBRO LUNDIA AB
    Inventors: Bernd Krause, Markus Hornung, Johannes Geckeler
  • Publication number: 20150008178
    Abstract: There are disclosed a honeycomb shaped porous ceramic body to manufacture a honeycomb shaped ceramic separation membrane structure in which a separation performance does not deteriorate under a higher operation pressure than before, a manufacturing method for the porous body, and a honeycomb shaped ceramic separation membrane structure. The honeycomb shaped ceramic separation membrane structure 1 includes a honeycomb shaped substrate 30, an intermediate layer 31, an alumina surface layer 32, and a separation layer 33. The structure has the alumina surface layer 32 on the intermediate layer 31, whereby even when the insides of the cells 4 are pressurized, cracks are not easily generated in a porous body 9 or the separation layer 33 and the deterioration of the separation performance does not easily occur.
    Type: Application
    Filed: September 22, 2014
    Publication date: January 8, 2015
    Inventors: Makoto MIYAHARA, Makiko ICHIKAWA, Kenji YAJIMA, Makoto TERANISHI, Tetsuya UCHIKAWA, Hideyuki SUZUKI
  • Patent number: 8911622
    Abstract: An apparatus and method for skimming oil and other liquid hydrocarbons and contaminates floating at the surface of a body of water or other suspending liquid. A rigid skimming surface such as a drum or disc is floatably supported on pontoons. The skimming surface is rotatable about an axis substantially parallel to the water surface. The skimming surface is covered with removably attached sorbent material which improves the efficiency of the oil recovery operation and which, when worn or soggy, can be removed and discarded without discarding the skimming surface.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: December 16, 2014
    Assignee: Abanaki Corporation
    Inventors: Wallace J. Landry, III, M. Thomas Hobson, Richard Forbes, Brian Slone
  • Patent number: 8887923
    Abstract: A filter medium comprises: a) 55 to 80 percent by weight of activated carbon particles having a D50 of 70 to 130 micrometers and a D10 of 25 to 50 micrometers; b) 5 to 20 percent by weight of first catalytic activated carbon particles having a D50 in a range of 20 to 40 micrometers and a D10 of 2 to 20 micrometers; and c) 10 to 30 percent by weight of a thermoplastic binder that binds at least the activated carbon particles and the catalytic activated carbon particles into a porous unitary body, wherein the percent by weight of components a)-c) is based upon a total weight of components a)-c). A water filtration system including the filter medium is also disclosed.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: November 18, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Mark R. Stouffer, Eric C. Pemberton
  • Publication number: 20140336295
    Abstract: A porous body consists essentially of a plurality of ceramic particles having an average size ranging from 8 to 100 nm. The ceramic particles are bonded to adjacent ceramic particles with a strength sufficient to render the porous body self-supporting. The porosity ranges from 30 to 70 vol. % and the average pore size ranges from 5 to 50 nm. The porous body may be manufactured by preparing a dispersion comprising the ceramic particles and a polymer matrix material in a solvent, removing the solvent by heating and/or evaporation, forming a preform of the dried material, and firing the preform to remove the polymer matrix material and bond the ceramic particles to each other. The porous body is useful as a filter element in a system adapted to remove nanoscale particles from a fluid stream.
    Type: Application
    Filed: May 9, 2013
    Publication date: November 13, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: CHANGZAI CHI, JEFFREY SCOTT METH
  • Patent number: 8869993
    Abstract: A filter used for filtering molten metal and a preparation method thereof are disclosed. The filter comprises open-pored porous material, binder and refractory material. The refractory material is bonded on the open-pored porous material by the binder, wherein the weight proportion of the binder is at least 50% and the weight proportion of the refractory material is not more than 50%. The filter has enhanced mechanical property and high temperature resisting property, while its preparation method is more cost-efficient than usual ones.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: October 28, 2014
    Assignee: Jinan Shengquan Double Surplus Ceramic Filter Co., Ltd.
    Inventors: Jianxun Zhu, Jinghao Liu
  • Patent number: 8864990
    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: April 25, 2007
    Date of Patent: October 21, 2014
    Assignee: Zenon Technology Partnership
    Inventors: Robert Szabo, Gabor Bakos, Attila Palinkas, Steven Kristian Pedersen
  • Patent number: 8858789
    Abstract: A system for cleaning up an oil spill and recovering the spilled oil includes frames supporting superhydrophobic oil-absorbing nanowires. A first container supports the frames with the nanowires. A mixture of oil and water is pumped into the first container where the oil from the mixture is absorbed by the nanowires as water is separated from the mixture and deposited in the first container where it is then pumped therefrom. A second container supports the frames with the oil so-absorbed by the nanowires. The frames with the oil so-absorbed by the nanowires are heated whereby the oil so-absorbed separates from the nanowires and is deposited in the second container. The oil so-deposited in the second container is then pumped therefrom.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: October 14, 2014
    Assignee: The United States of America as represeted by the Secretary of the Navy
    Inventors: Jason M. Pappafotis, Daniel J. Flisek, David M. Robinson
  • Publication number: 20140231333
    Abstract: A membrane element comprising: a hollow fiber (HF) stack comprising a plurality of loosely packed hollow fibers (HFs) comprising first ends extending through one contact structure and opposed ends extending through an opposed contact structure, each HF comprising an elongated lumen extending between the one contact structure and the opposed contact structure and comprising a hydrophilic semipermeable membrane adapted to achieve salt rejection of 98.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 21, 2014
    Inventor: MAHER ISAAC KELADA
  • Patent number: 8753509
    Abstract: Embodiments of the present invention relate to a filtration module and/or a novel method of making a frameless filtration module for water or wastewater treatment that can produce filtrate that is free of particles, reduce precipitated hardness, colloids and organic compounds. The designed apparatus, which is either encapsulated or in cassette form, can be assembled and disbanded easily to suit diverse process requirements. The module configuration and assembly also helps in clean-in-place, repair or replacement activities to be performed in situ.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: June 17, 2014
    Assignee: Aquatech International Corporation
    Inventors: Ravi Chidambaran, Pavan Raina, Sugata Das, Nitin Chandan
  • Publication number: 20140110332
    Abstract: The present invention is intended to provide a composite membrane excellent in both durability and moisture permeability. The present invention provides a composite membrane formed by laminating a layer of a moisture-permeable resin on one surface of a hydrophobic porous membrane, the composite membrane being characterized in that the layer of the moisture-permeable resin is included in a reinforcing porous membrane.
    Type: Application
    Filed: March 30, 2012
    Publication date: April 24, 2014
    Inventors: Keita Hirai, Hiroyoshi Fujimoto
  • Publication number: 20140066872
    Abstract: Nonwoven textile fabrics in accordance with the present invention are formed primarily of individualized bast fibers substantially free of pectin. The nonwoven fabric can include staple fibers to a lesser extent than the individualized bast fibers. Individualized bast fibers include fibers derived from the flax and hemp plants. The nonwoven textile fabric is formed into a web while in a dry state and subsequently bonded to produce a nonwoven fabric.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 6, 2014
    Inventors: Samuel Charles Baer, Micheal Shea Lerch, Alan Edward Wright
  • Publication number: 20140042077
    Abstract: A hollow fiber membrane fluid transport device is disclosed wherein the fibers are comprised of Polytetrafluoroethylene (PTFE), and the potting materials are comprised of fluorocopolymer and or fluoroterpolymer based materials. The potting of the device utilizes a compressed chemically resistant fluorocopolymer and or fluoroterpolymer film, allows for ease of manufacture without destruction of the PTFE hollow fibers, with high packing densities, and without the processing complexity of pre-melting, extruding, or chemical crosslinking of any polymeric adhesives. Furthermore, the PTFE hollow fibers can be treated with a fluoropolymeric solvent solution before the chemically resistant film is applied to enhance the adhesion of the PTFE fiber to the film.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 13, 2014
    Applicant: MARKEL CORPORATION
    Inventors: Robert E. Jerman, Cornelius Brown, Jr., Kenneth Donald Hobbs, Carlos Ruano, Charles Edward Wolanski
  • Publication number: 20140042081
    Abstract: A filter for removing substances, including leukocytes and platelets by way of non-limiting example, from whole blood or from blood derivatives, the filter includes a casing containing a layered filter element, at least one layer of this latter being coated with polyurethane; this polyurethane has a number average molecular weight between 10,000 and 20,000 Dalton. A method for forming the layered filter element for a filter such as mentioned above, in which at least one layer of this filter element is impregnated with polyurethane by immersing it in a container of a mixture in which the polyurethane is present. This mixture includes a solution in which the polyurethane is dissolved in a polar solvent such as water.
    Type: Application
    Filed: February 5, 2013
    Publication date: February 13, 2014
    Applicant: GVS S.P.A.
    Inventor: GVS S.P.A
  • Publication number: 20140042076
    Abstract: A hollow fiber membrane fluid transport device is disclosed wherein the fibers are comprised of Polytetrafluoroethylene (PTFE), and the potting materials are comprised of fluorocopolymer and or fluoroterpolymer based materials. The potting of the device utilizes a compressed chemically resistant fluorocopolymer and or fluoroterpolymer film, allows for ease of manufacture without destruction of the PTFE hollow fibers, with high packing densities, and without the processing complexity of pre-melting, extruding, or chemical crosslinking of any polymeric adhesives. Furthermore, the PTFE hollow fibers can be treated with a fluoropolymeric solvent solution before the chemically resistant film is applied to enhance the adhesion of the PTFE fiber to the film.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 13, 2014
    Applicant: MARKEL CORPORATION
    Inventors: Robert E. Jerman, Cornelius Brown, Jr., Kenneth Donald Hobbs, Carlos Ruano, Charles Edward Wolanski
  • Publication number: 20140034570
    Abstract: Certain aspects and embodiments of the present invention are directed to a porous medium screen that can be disposed in a wellbore through a fluid-producing formation. The porous medium screen can include a porous medium and a retaining structure. The porous medium can be a material having one or more pores. The one or more pores can be adapted to allow a fluid to flow through the porous medium and to prevent one or more particles from flowing through the porous medium. The retaining structure can be adapted to retain the porous medium in a position circumferentially surrounding a section of a tubing string and to prevent expansion of the porous medium. The retaining structure can include a shroud and one or more stoppers. The shroud can be adapted to circumferentially surround the porous medium. Each stopper can be adapted to circumferentially surround the section of a tubing string at an edge of the porous medium.
    Type: Application
    Filed: May 29, 2012
    Publication date: February 6, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Jean-Marc Lopez, Liang Zhao, Luke William Holderman
  • Publication number: 20140007773
    Abstract: An aggregate composition and process for making the aggregate composition. The aggregate composition includes an insoluble rare earth-containing compound and a polymer binder. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. A suitable insoluble cerium-containing compound can be derived from cerium carbonate or a cerium salt. In a specific embodiment, the aggregate composition consists essentially of one or more cerium oxides, the polymer binder and optionally a flow aid. A process for making the composition includes mixing the insoluble rare earth-containing compound with a polymer binder to form a mixture, and subjecting the mixture to mechanical, chemical and/or thermal treatment to adhere the rare earth compound to the polymer binder. The aggregate composition can be used in a variety of fluid treatment applications to remove one or more chemical and biological contaminants in a fluid.
    Type: Application
    Filed: September 9, 2013
    Publication date: January 9, 2014
    Applicant: MOLYCORP MINERALS, LLC
    Inventor: John L. Burba
  • Publication number: 20130327716
    Abstract: Sorbent polymers which are selective to taking up hydrocarbons are provided for separating hydrocarbons from fluids and taking up hydrocarbons from off of and intermixed with solid materials. The hydrocarbons may at least partially be expressed out of and recovered from the polymer by squeezing. The polymers may be re-used for picking up additional hydrocarbons. Methods for producing and using the polymers are also provided.
    Type: Application
    Filed: January 31, 2013
    Publication date: December 12, 2013
    Applicant: Jawaharlal Nehru Centre For Advanced Scientific Research
    Inventor: Jawaharlal Nehru Centre For Advanced Scientific Research
  • Publication number: 20130313196
    Abstract: In a process for the desalination of water, an impure, salt-containing water feed is passed through one or more filter media to remove from the feed impurities having a particle size greater than 50 ?m and produce a first filtered water stream. The first filtered water stream is then passed through at least one further filter having an average pore size of 1 ?m to 60 ?m produced from sintered polyethylene particles having a molecular weight of at least 4×105 g/mol as determined by ASTM-D 4020 to remove at least a portion of the impurities having a particle size less than or equal to 50 ?m from the first filtered water stream and produce a second filtered water stream. The second filtered water stream is passed directly to a reverse osmosis membrane to produce a purified water stream.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 28, 2013
    Applicant: TICONA LLC
    Inventors: Julia HUFEN, Suresh SUBRAMONIAN, Janine BAUER, Kerstin LUEDTKE, Jason SMITH, Dian CHEN
  • Publication number: 20130270179
    Abstract: There is provided a membrane that includes a plurality of polyimide fibers encased in a fluoropolymer sheath, the plurality of fibers having a diameter of from about 10 nm to about 50 microns, wherein the plurality of fibers form a permeable non-woven mat. A method of manufacturing the membrane is provided.
    Type: Application
    Filed: April 11, 2012
    Publication date: October 17, 2013
    Applicant: XEROX CORPORATION
    Inventors: Yu Qi, Sandra J. Gardner, Qi Zhang, Carolyn P. Moorlag, Brynn M. Dooley, Guiqin Song, Nicoleta D. Mihai, Nan-Xing Hu
  • Publication number: 20130248463
    Abstract: A method for fabricating a micro- or nanofibrous filter is described. The method comprises obtaining at least a first carrier substrate, providing adhesive on at least a first carrier substrate, heating the adhesive above its melting temperature for inducing an interaction of at least part of the adhesive with the at least a first carrier substrate and then cooling below the melting temperature of the adhesive thus creating at least one adhesive carrier substrate. Thereafter, a layer of micro- or nanofibres is provided on the adhesive-side of the at least one adhesive carrier substrate to form a further structure. The further structure is then brought above the melting temperature of the adhesive for inducing an interaction between the adhesive and the micro- or nanofibres. Finally the temperature is again reduced below the melting temperature of the adhesive thus obtaining the micro- or nanofibrous filter.
    Type: Application
    Filed: December 1, 2011
    Publication date: September 26, 2013
    Applicant: UNIVERSITEIT GENT
    Inventors: Philippe Westbroek, Bert De Schoenmaker
  • Publication number: 20130248439
    Abstract: A filter medium includes: a core yarn and a binder yarn twisted together, at least one of the core yarn or the binder yarn being weldable; and a filament yarn being fuzzy and weldable, the filament yarn being welded to at least one of the core yarn or the binder yarn while being placed between the core yarn and the binder yarn as twisted together. A filtering device for filtering a liquid to be treated with a filter medium layer including includes the filter medium. A method of manufacturing the filter medium is also disclosed.
    Type: Application
    Filed: October 6, 2011
    Publication date: September 26, 2013
    Applicant: ISHIGAKI COMPANY LIMITED
    Inventors: Kunio Fujita, Hidetaka Ujike, Takahiko Ishimaru, Fumikatsu Nagai
  • Publication number: 20130248438
    Abstract: A filter comprising a pad of non-woven fibrous material, the pad having a substantially solid edge of consolidated pad material which has been softened and subsequently hardened.
    Type: Application
    Filed: September 20, 2010
    Publication date: September 26, 2013
    Inventor: Nicholas Brentnall
  • Patent number: 8528747
    Abstract: Solid phase extraction (SPE) disks may be manufactured by providing a suspension comprising glass microfibers and a suspension comprising one or more sorbents and forming a disk by combining the suspensions or by layering the suspensions. This may be followed by a drying procedure to create the finished disk. A disk mold including a collar and plug may be used to establish the size and shape of the disk. Examples of various constructions and processes for forming the disks are provided.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: September 10, 2013
    Assignee: Horizon Technologies, Inc.
    Inventors: Kevin Dinnean, Robert S. Johnson, Steve J. MacDonald
  • Patent number: 8529781
    Abstract: A method for producing a component, and a component, in particular a micromechanical and/or microfluidic and/or microelectronic component, is provided, the component including at least one patterned material region, and in a first step the patterned material region is produced in that microparticles of a first material are embedded in a matrix of a second material, and in a second step the patterned material region is rendered porous by etching using a dry etching method or a gas-phase etching method.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: September 10, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Tino Fuchs, Christina Leinenbach
  • Patent number: 8524081
    Abstract: Separation media, separation modules and methods are provided for separating water from a water and hydrocarbon emulsion and include a fibrous nonwoven coalescence layer for receiving the water and hydrocarbon emulsion and coalescing the water present therein as a discontinuous phase to achieve coalesced water droplets having a size of 1 mm or greater, and a fibrous nonwoven drop retention layer downstream of the coalescence layer having a high BET surface area of at least 90 m2/g or greater sufficient to retain the size of the coalesced water droplets to allow separation thereof from the hydrocarbon.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: September 3, 2013
    Assignee: Ahlstrom Corporation
    Inventors: Christine M. Stanfel, Farina Diani Pangestu
  • Publication number: 20130193063
    Abstract: The present invention provides a novel nonwoven felt fabric, which is made of at least one low-melting-point short fiber and at least one high-melting-point short fiber of same type or different types, wherein the fabric is stiff enough to be self-sustaining and have the ability of shape maintenance. The felt fabric exhibits excellent pleatability, moldability and compressive strength. The invention also provides a method for producing the felt fabric, and a filter comprising the felt fabric used as the material of a filter medium of the filter, wherein the filter medium requires no support structure to stand alone and persistently retains its shape.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 1, 2013
    Inventors: Ying Yuk Ng, Gilbert Craig
  • Publication number: 20130140228
    Abstract: The invention relates to a filter material (2) for fluids, in particular hydraulic fluids, comprising a filter medium (4) having at least one layer, and a supporting structure (6) which is partially made of a plastic material and rests flatly in some surface areas on at least one side of the filter medium (4). Said filter material is characterized in that the filter medium (4) and the supporting structure (6) are connected to one another by laminating, covering and/or by a melting process.
    Type: Application
    Filed: June 22, 2011
    Publication date: June 6, 2013
    Inventors: Matthias Schwender, Andreas Schmitz, Edwin Koch
  • Publication number: 20130126420
    Abstract: A ceramic filter is provided with a porous substrate 3 “made of ceramic and having partition walls 1 separating and forming a plurality of cells 2 extending from one end face 11 to the other end face 12”, a separation membrane 21 “made of ceramic and disposed on wall surfaces of the cells 2”, and glass seals 31 disposed on the one end face 11 and on the other end face 12 “so as not to cover openings of the cells 2”. Ceramic particles having a thermal expansion coefficient of 90 to 110% of that of glass contained in the glass seals 31 are dispersed in the glass seals 31. There is provided a ceramic filter usable for a long period of time in high temperature conditions.
    Type: Application
    Filed: January 7, 2013
    Publication date: May 23, 2013
    Applicant: NGK INSULATORS, LTD.
    Inventor: NGK Insulators, Ltd.
  • Publication number: 20130045150
    Abstract: Disclosed are reactive fibers having a polycationic exterior surface to which multivalent peroxy anions are bound. The use of such fibers, mats of such fibers, and filters of such fibers, as well as methods of treating fluid streams, and rejuvenating such fibers, mats and filters are also disclosed.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 21, 2013
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Kwangyeol Lee, Seth Adrian Miller
  • Patent number: 8372292
    Abstract: Disclosed herein is a polymeric filtration medium including at least one fibrous mat of randomly oriented fibers of a polymer. The polymer has a molecular weight distribution (Mw/Mn) between about 1.4 and about 6 and a melt flow rate greater than about 1000 g/10 minutes. Also disclosed herein are methods of making and using the polymeric filtration medium. Further disclosed herein is a composite filtration medium incorporating the polymeric filtration medium.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: February 12, 2013
    Assignee: Johns Manville
    Inventors: Philippe M. Scheerlinck, Mabrouk Ouedemi
  • Patent number: 8337697
    Abstract: A bottle comprises a cap, a reservoir having an open top closeable by the cap, and a filter holder that houses a filter, the filter holder being coupled to the cap such that a liquid in the reservoir is filtered by the filter as the liquid is being consumed, and the filter is fluidly decoupled from the reservoir when the cap is disengaged from the reservoir. Preferred filters can be constructed out of high reactivity carbon mixture, activated carbon, iodinated resin, combinations thereof, or any other suitable compositions for filtering water or other liquids, and can be molded into any suitable size and shape. Preferred filter holder can have a top portion and a bottom portion that couple together via a snap fitting, mating threads, or any suitable means, which allow access to the filter, and which have numerous vents that allow liquid to freely flow through the filter.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: December 25, 2012
    Assignee: SimpliPure, Inc.
    Inventor: Tareq Adel Risheq
  • Publication number: 20120285877
    Abstract: Sintered fiber filters are provided that can afford high particle capture efficiency and/or low pressure drop during operation, and are useful in applications such as semiconductor processing. The shape of at least a portion of the individual fibers (e.g., metal fibers) used to make the filter have a three-dimensional aspect, which allows for a low packing density and high porosity filtration media. Certain filters have a cylindrical or tube-like shape with tapered ends of higher density. Methods of making such filters, for example, using axial pressing, are also described.
    Type: Application
    Filed: January 12, 2012
    Publication date: November 15, 2012
    Applicant: Mott Corporation
    Inventors: Derek Burgess, Wayne F. White, Alfred M. Romano, Todd W. Pflugbeil, Richard D. Balazy, Kenneth L. Rubow, John E. Rosenberger
  • Patent number: 8302781
    Abstract: A hydrophilic, semipermeable hollow-fiber membrane for blood treatment, with an integrally asymmetric structure based on a synthetic polymer. The hollow-fiber membrane possesses on its inner surface a porous separating layer and an open-pored supporting layer adjoining the separating layer, and has an ultrafiltration rate in albumin solution of 25 to 60 ml/(h·m2·mmHg). The hollow-fiber membrane is free from pore-stabilizing additives, and has a minimum sieving coefficient for cytochrome c of 0.8 and maximum sieving coefficient for albumin of 0.005.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: November 6, 2012
    Assignee: Membrana GmbH
    Inventors: Friedbert Wechs, Arne Gehlen, Bodo Von Harten, Richard Kruger, Oliver Schuster
  • Patent number: 8241494
    Abstract: A liquid filter assembly including a first liquid filter element adapted to filter particles larger than a first size; a second different liquid filter element adapted to filter particles larger than a second size; a housing having the first and second liquid filter elements therein. The second size is smaller than the first size. The housing forms a first liquid flow path having the first liquid filter element therein, and a second liquid flow path having the second liquid filter element therein. The second filter element comprises a formed porous polymer member.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: August 14, 2012
    Inventor: Norbert M. Assion
  • Patent number: 8221625
    Abstract: The filter device 10 according to the present invention is a device for filtering a polyolefin resin composition containing a polyolefin ingredient, wherein the device comprises a main body 10a having a flow passage 10b, a sintered metal filter 13 having a filtration accuracy of 1 to 100 ?m, a wire netting 14a having a line diameter of 0.01 to 0.25 mm and abutting the sintered metal filter 13 on one side thereof, and a supporting member 15 having a thickness of 10 to 100 mm and having a plurality of openings 15d with an aperture ratio of 30 to 60%; and the sintered metal filter 13, wherein the wire netting 14a and the supporting member 15 are disposed in this order from the upstream to the downstream of the flow passage 10b; and the sintered metal filter 13 is fixed to the main body 10a through the seal member 18.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: July 17, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Kazunori Kanamori
  • Publication number: 20120177996
    Abstract: Ribbon fibers, nonwoven articles derived therefrom, and their process of manufacture are provided. The ribbon fibers are derived from multicomponent fibers having a striped configuration and have a length of less than 25 millimeters, a minimum transverse dimension of less than 5 microns, and a transverse aspect ratio of at least 2:1. The ribbon fibers are formed from a water non-dispersible synthetic polymer. The nonwoven articles containing the ribbon fibers may be used for a wide array of products.
    Type: Application
    Filed: October 14, 2011
    Publication date: July 12, 2012
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Rakesh Kumar Gupta, Melvin Glenn Mitchell, Daniel William Klosiewicz, Mark Dwight Clark, Chris Delbert Anderson, Marvin Lynn Mitchell, Paula Hines Mitchell, Amber Layne Wolfe
  • Publication number: 20120175298
    Abstract: A high efficiency filter comprising at least one nonwoven web layer is provided. The nonwoven web layer comprises a plurality of first fibers, a plurality of second fibers, and a binder. The first fibers comprise a water non-dispersible synthetic polymer and have a different configuration and/or composition than the second fibers. The first fibers have a length of less than 25 millimeters and a minimum transverse dimension of less than 5 microns. The nonwoven web layer comprises at least 15 weight percent of the first fibers, at least 10 weight percent of the second fibers, and at least 1 weight percent of the binder. The high efficiency filter has a filtration efficiency of 85% (DIN EN 1822) or higher. Also disclosed is a process for producing the first fibers and the multicomponent fibers from which they are derived.
    Type: Application
    Filed: October 14, 2011
    Publication date: July 12, 2012
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Rakesh Kumar Gupta, Melvin Glenn Mitchell, Daniel William Klosiewicz, Mark Dwight Clark, Chris Delbert Anderson, Marvin Lynn Mitchell, Paula Hines Mitchell, Amber Layne Wolfe
  • Patent number: 8215492
    Abstract: A cartridge for treating water capable of releasably engaging a water treatment device. The cartridge includes a housing, an inlet for introducing untreated water into the cartridge, an outlet port for egress of treated water from the cartridge, and a treatment media for treating untreated water that is in fluid communication with the inlet and the outlet port. The cartridge includes a first tube and a second tube, wherein each of the tubes comprise an inside surface, an outside surface, a proximal end, and a distal end, where the inside surface and/or the outside surface is a sealing surface. The first tube extends from the housing and surrounds the outlet port. At least a portion of the first tube or the second tube surrounds the other such that a gap is formed between the first tube and the second tube.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: July 10, 2012
    Assignee: Pur Water Purification Products, Inc.
    Inventors: John D. Tanner, David James Emmons
  • Publication number: 20120168381
    Abstract: Media and devices, such as depth filters including such media, wherein the media is impregnated with a polymer such as a polyallylamine. The resulting device offers strong binding of protein impurities and superior removal of host cell proteins from biological samples.
    Type: Application
    Filed: March 8, 2012
    Publication date: July 5, 2012
    Applicant: EMD MILLIPORE CORPORATION
    Inventors: Senthil Ramaswamy, Brian Gagnon, Maybelle Woo, KS Cheng, Mikhail Kozlov