Porous Unitary Mass Patents (Class 210/510.1)
  • Patent number: 10478781
    Abstract: The present invention relates to a tangential flow separator element for separating a fluid medium for treatment into a filtrate and a retentate, said separator element having a monolithic rigid porous support (2) of rectilinear structure and having a single channel (3) arranged therein for passing the flow of the fluid medium for treatment, the outside surface (5) of the support presenting a profile that is constant. According to the invention, the monolithic rigid porous support (2) defines obstacles (9) to the flow of the fluid for filtering, which obstacles extend from the inside wall (31) of said channel (3), are identical in material and porous texture to the support, and present continuity of material and of porous texture with the support, said obstacles (9) generating variations in the flow section of the channel.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: November 19, 2019
    Assignee: TECHNOLOGIES AVANCEES ET MEMBRANES INDUSTRIELLES
    Inventor: Jérôme Anquetil
  • Patent number: 10449531
    Abstract: A method for removing contaminants from an process stream that includes the use of reticulated material to filter the process stream. The reticulated material also facilitate process stream flow distribution in process units. The reticulated material can be packed with a void space between a substantial number of the reticulated material that can be varied to enhance filtration and flow distribution. The method of filtering also provides a method of removing contaminants leaving process equipment. The methods can be used on a variety of process streams and process equipment. The reticulated material can include ceramics, metallic materials, and chemical vapor deposition elements. The reticulated material can be of various shapes and sizes, and can also be catalytically active.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: October 22, 2019
    Assignee: CRYSTAPHASE INTERNATIONAL, INC.
    Inventor: John N. Glover
  • Patent number: 10328181
    Abstract: A method for producing a ceramic osseoconductive bone substitute material, the bone substitute material, intervertebral disk implants containing the substitute bone material, and to methods of using the bone substitute material.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: June 25, 2019
    Assignees: CERAMTEC GMBH, FRIDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG
    Inventors: Heinrich Wecker, Alfons Kelnberger, Peter Greil, Tobias Fey, Johanna Schmidt, Bodo Zierath
  • Patent number: 10301988
    Abstract: A process for recovering performance of a component of an aftertreatment system. The component includes an inlet and an outlet. The inlet is positioned upstream relative to an exhaust gas flow through the aftertreatment system, and the outlet is positioned downstream relative to the exhaust gas flow through the aftertreatment system. The process includes removing the component from the aftertreatment system. The process also includes regenerating the component, such as subjecting the component to an acid wash and/or heat treating the component. The process further includes reinstalling the component into the aftertreatment system with the inlet positioned downstream relative to the exhaust gas flow through the aftertreatment system and the outlet positioned upstream relative to the exhaust gas flow through the aftertreatment system.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: May 28, 2019
    Assignee: Cummins Emission Solutions, Inc.
    Inventors: Qiang Liu, Ying Yuan, Zheng Liu, Arvind V. Harinath
  • Patent number: 10156402
    Abstract: The present disclosure is directed to systems, devices and methods for cooling a surface with a plurality of ejectors. The fluid provided to the micro-ejectors includes vapor formed at the surface. The vapor provides the driving force for driving fluid through the micro-ejectors.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: December 18, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventor: Matthew David Carlson
  • Patent number: 10092865
    Abstract: A method for producing a composite filter tube and filter element made of a multilayer metal mesh and metal powders, including: knitting to obtain metal meshes of different mesh numbers, obtaining a layered structure by means of a lamination method, then putting the layered structure in a vacuum furnace for sintering processing, sintering a metal composite layer to obtain a composite filter sheet and tube made of a multilayer metal mesh and metal powders with a multilayer metal mesh as a structure support layer and a metal powder sinter structure as a filter layer, then rolling the composite filter sheet and tube into a tubular filter element by using a shaping machine, and welding to obtain a composite filter tube and filter element product made of a multilayer metal mesh and metal powders.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: October 9, 2018
    Inventor: Dongwei Wang
  • Patent number: 9981224
    Abstract: An exhaust purification device purifies an exhaust gas exhausted from an internal combustion engine. The exhaust purification device has a three-way catalytic agent that is located in an exhaust passage of the internal combustion engine and a particulate filter that is located downstream of the three-way catalytic agent in the exhaust passage and that collects an exhaust particulate. The particulate filter is provided with cells that includes sealed-inlet cells of which upstream ends are sealed and through cells through which an upstream side and a downstream side of the particulate filter communicate with each other. The particulate filter is arranged at a location where a temperature of the exhaust gas reaching an upstream end of the particulate filter is higher than or equal to a combustion temperature of the exhaust particulate, when the three-way catalytic agent is in an active state and when the internal combustion engine is operated.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: May 29, 2018
    Assignee: DENSO CORPORATION
    Inventors: Shingo Nakata, Takao Mishima
  • Patent number: 9932710
    Abstract: A porous metal mold for a wet pulp molding process is disclosed herein. The porous metal mold comprises a first surface where a paper-pulp-fiber layer is disposed for forming a finished paper-shape product or a semi-finished paper-shape product; a cavity, formed on the first surface, for shaping the finished paper-shape product or the semi-finished paper-shape product; and a second surface. The porous metal mold is made by integrally sintering a plurality of metal particles, and after the sintering at least one pore is formed between at least two of the metal particles so that at least one through hole between the first surface and the second surface of the porous metal mold, for exhausting water or moisture contained in the paper-pulp-fiber layer disposed on the first surface.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: April 3, 2018
    Assignee: GOLDEN ARROW PRINTING CO., LTD.
    Inventors: Chien-Kuan Kuo, Chun-Huang Huang
  • Patent number: 9884276
    Abstract: A filter outer cylinder container is a hollow container, and a filter medium is mounted in the container. Fluid passage holes, opened in a side surface member of the filter outer cylinder container, are located at or above a fixed height from a bottom portion of the filter outer cylinder container, whereby a machining liquid is stored in the filter outer cylinder container, so that the filter medium can be always submerged in the machining liquid.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: February 6, 2018
    Assignee: FANUC CORPORATION
    Inventor: Hirotsugu Kasai
  • Patent number: 9803596
    Abstract: The honeycomb filter includes a honeycomb substrate having porous partition walls defining a plurality of cells and plugging portions. In a cross section, the cells are arranged so that a periphery of an inlet plugged cell including an open end whose shape is a square in which a length of one side is L1 is surrounded with four rectangular outlet plugged cells each including an open end whose shape is a rectangle in which a length of one side is L1 and a length of the other side is L2 (L1>L2) and four square outlet plugged cells each including an open end whose shape is a square in which a length of one side is L2. A partition wall center distance a, a partition wall center distance b and a partition wall thickness t satisfy the following equation (1): 0.95<b/at<1.90 ??(1).
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: October 31, 2017
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukio Miyairi, Kazuhiko Kumazawa, Toshihiro Hirakawa, Toshio Yamada
  • Patent number: 9795910
    Abstract: An object of the present invention is to provide a honeycomb filter capable of preventing depth filtration and achieving a combination of high collection efficiency and low pressure loss.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: October 24, 2017
    Assignee: IBIDEN CO., LTD.
    Inventors: Naoyuki Jinbo, Akinori Orito, Yuichi Nagatsu
  • Patent number: 9731982
    Abstract: A porous ceramic filter having one or more coatings of elemental or compounds of iron, manganese, aluminum, titanium, or mixtures thereof deposited on the surface of the pores.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: August 15, 2017
    Assignee: UNIVERSITY OF KANSAS
    Inventor: Craig D. Adams
  • Patent number: 9623360
    Abstract: The present disclosure relates to porous ceramic articles and a method of making the same. The porous ceramic articles have microstructure of sinter bonded or reaction bonded large pre-reacted particles and pore network structure exhibiting large pore necks. The method of making the porous ceramic articles involves using pre-reacted particles having one or more phases. A plastic ceramic precursor composition is also disclosed. The composition includes a mixture of at least one of dense, porous, or hollow spheroidal pre-reacted particles and a liquid vehicle.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: April 18, 2017
    Assignee: Corning Incorporated
    Inventors: Monika Backhaus-Ricoult, Christopher Raymond Glose
  • Patent number: 9573803
    Abstract: A microfluidic device (100) made from glass, ceramic or vitroceramic, comprises an upper layer (122), a lower layer (124) and an intermediate layer (114), the intermediate layer (114) comprising an upper face (114b) and a lower face (114a), the lower face (114a) comprising a first open structured surface defining a first microfluidic channel (126) and the upper face (114b) comprising a second open structured surface defining a second microfluidic channel (112); the lower surface of the intermediate layer (114) cooperating with a first planar layer closing the first microchannel (126); the upper face (114b) of the intermediate layer (114) cooperating with a second planar layer (130), closing the second microfluidic channel (112) in a sealed manner, and the second planar layer constituting an intermediate layer (130) which cooperates, on its face opposite the intermediate layer (114), with another layer (122) comprising on its inner face (122a) a structured surface defining a third microfluidic channel (128).
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: February 21, 2017
    Assignee: Corning Incorporated
    Inventors: Antoine Gaston Denis Bisson, Thierry Luc Alain Dannoux, Anne Paris
  • Patent number: 9556075
    Abstract: Product formed from a ceramic material, at least part of the said product not being formed from amorphous silica and including pores and satisfying the following criteria (a), (b) and (c): (a) at least 70% by number of the said pores are frustoconical tubular pores extending substantially parallel to each other in a longitudinal direction; (b) in at least one cross-section plane, the mean size of the cross sections of the said pores is greater than 0.15 ?m and less than 300 ?m; (c) in at least one cross-section plane, at least 50% by number of the pores have a convexity index Ic of greater than 87%, the convexity index of a pore being equal to the ratio Sp/Sc of the surfaces Sp and Sc delimited by the perimeter and by the convex envelope of the said pore, respectively.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: January 31, 2017
    Assignees: SAINT-GOBAIN CENTRE DE RECHERCHIES ET D'ETUDES EUROPEEN, CENTRE NATIONALE DE RECHERCHE SCIENTIFIQUE
    Inventors: Sylvain Deville, Celine Viazzi
  • Patent number: 9545736
    Abstract: A mold and die metallic material, an air-permeable member for mold and die use, and a method for making the same are provided. The mold and die metallic material is made by forming a mixed material containing stainless steel fibers with an equivalent diameter of 30-300 ?m and a length of 0.4-5.0 mm, and stainless steel powder, heat sintering a green body of the mixed material, and heating the sintered body thus obtained in a nitrogen atmosphere and nitrided; wherein average open pore diameter thereof is 3-50 ?m.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: January 17, 2017
    Assignee: SINTOKOGIO, LTD.
    Inventors: Masayuki Asai, Mineo Suzuki, Tetsu Yabuno
  • Patent number: 9452372
    Abstract: A method for preparing a porous fluoropolymer precursor includes combining a fluoropolymer and a removable additive to form a composition, the removable additive having a thermal decomposition temperature greater than a sintering temperature of the fluoropolymer, compressing the composition to form a preform, and sintering the preform to form the porous fluoropolymer precursor. A method for preparing a porous fluoropolymer includes disposing the porous fluoropolymer precursor in a removing agent, contacting the removable additive with the removing agent, and removing, by the removing agent, the removable additive from the porous fluoropolymer precursor to form the porous fluoropolymer, wherein the porous fluoropolymer comprises a plurality of pores formed by removing the removable additive.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: September 27, 2016
    Assignee: BAKER HUGHES INCORPORATED
    Inventor: Anil K. Sadana
  • Patent number: 9434650
    Abstract: The present invention relates to method for forming a porous ceramic material, the method comprising the steps of: providing a suspension of polymer-coated ceramic particles in a first solvent; contacting the suspension with a second solvent, whereby a ceramic material precursor is formed from the polymer and ceramic particles, heating the ceramic material precursor to at least partially decompose the polymer within the precursor into solid deposits, and then sintering the ceramic material precursor to form a porous ceramic material.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: September 6, 2016
    Assignee: Imperial Innovations Limited
    Inventors: Benjamin Francis Knatchbull Kingsbury, Zhentao Wu, Kang Li
  • Patent number: 9394814
    Abstract: A honeycomb filter includes a plurality of cells and porous cell walls. The plurality of cells include exhaust gas introduction cells and exhaust gas emission cells. The porous cell walls supports an SCR catalyst. The exhaust gas introduction cells include first exhaust gas introduction cells and second exhaust gas introduction cells. The second exhaust gas introduction cells each have a cross sectional area larger than a cross sectional area of each of the first exhaust gas introduction cells in the cross section perpendicular to the longitudinal direction of the plurality of cells. Each of the exhaust gas emission cells has a cross sectional area equal to or larger than the cross sectional area of each of the second exhaust gas introduction cells in the cross section perpendicular to the longitudinal direction of the plurality of cells.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: July 19, 2016
    Assignee: IBIDEN CO., LTD.
    Inventors: Toshiaki Shibata, Yuki Miwa
  • Patent number: 9338873
    Abstract: A gas diffusion screen assembly is adapted for residing in a torch cup of a gas shielded electric arc torch. The gas diffusion screen assembly comprises a first concave mesh screen, a second convex mesh screen, and an electrode collar. The collar interconnects the first and second mesh screens, and defines an opening for receiving an electrode of the electric arc torch.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: May 10, 2016
    Inventor: Michael Furick
  • Patent number: 9327223
    Abstract: A collapsible device for filtering air comprising a base, a fan functionally attached to the base, an air filter releasably attached to the base, and a substantially air impermeable outer sleeve is provided.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: May 3, 2016
    Assignee: The Procter & Gamble Company
    Inventors: Dana Paul Gruenbacher, Steven James Schroeck, Jessica Elizabeth Leon, Paolo Dal Bo, Uwe Schober
  • Patent number: 9108166
    Abstract: There is provided a silica membrane 1 formed on a porous substrate. A desorbed ionic strength of water having a temperature of 500° C. in a temperature-programmed desorption analysis of water of the silica membrane is 2,000,000/g. The silica membrane 1 is manufactured by allowing a silica sol having a water concentration of 0.03 to 3 mass % to adhere to a porous substrate by an ethanol solvent, drying the silica sol by sending air having a dew point of ?70 to 0° C., and firing the dried silica sol at 200 to 400° C.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: August 18, 2015
    Assignee: NGK Insulators, Ltd.
    Inventors: Naoko Takahashi, Kouta Asai
  • Patent number: 9003714
    Abstract: In one preferred form of the present invention there is provided a roof rain gutter system. The roof rain gutter system comprises a drainage pipe for being positioned within and extending along a gutter. A coarse heavy filler material is placed on top of the drainage pipe for allowing the passage of rain water. A rain guttering component is positioned above a drop outlet of the gutter for directing water flowing through the drainage pipe downwardly into the drop outlet. The rain guttering component is adapted to surround the drop outlet to assist with preventing the passage of coarse heavy filler material through the drop outlet.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: April 14, 2015
    Inventor: Douglas Jeffrey Vance
  • Patent number: 8999156
    Abstract: A frit (44) includes a porous support structure having a plurality of void spaces, where a plurality of secondary particles (46) are filled in the void spaces, the secondary particles (46) being dimensioned with respect to the void spaces such that the frit (44) retains packing materials with diameters of less than about 2.5 microns. Preferably one or more frits (44) are received in a high pressure liquid chromatography (HPLC) chromatographic column, where the column includes fittings and filter assemblies for receiving frits (44) at its inlet and outlet. The frit (44) can be constructed from a porous support structure with void spaces or pores that are filled with secondary particles (46) smaller those used to manufacture the support. The particles (46) contained in the void spaces are large enough to be retained by the support, but small enough to create a finer network of interconnected channels within the support's void spaces that are capable of retaining sub-2.5 micrometer particles.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: April 7, 2015
    Assignee: Waters Technologies Corporation
    Inventors: Pamela C. Iraneta, Jon Belanger, Raymond P. Fisk
  • Patent number: 8951423
    Abstract: A method for removing a filter cake from a filtering device having a housing that defines a filtration flowpath through which a filtrate flows, the housing having at least one inlet and at least one outlet, the filter cake being deposited on at least one cylindrical filter element disposed within the filtering device, the at least one cylindrical filter element comprises at least one filter material and at least one rebound element, the at least one rebound element having a first flange extending from a head region and a second flange extending from a foot region, the at least one rebound element having a structured surface with at least two recesses mutually parallel in the longitudinal direction of the at least one rebound element, the at least two recesses are formed extending between the first flange and the second flange.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: February 10, 2015
    Assignee: ETS Trade S.A.R.L.
    Inventors: Harald Schmidt, Frank Jonigkeit
  • Publication number: 20150008180
    Abstract: An object of the present invention is to provide a honeycomb shaped porous ceramic body in which a strength deteriorates less than before after a separation layer is formed, a manufacturing method for the porous ceramic body, and a honeycomb shaped ceramic separation membrane structure. A honeycomb shaped porous ceramic body 9 includes a honeycomb shaped substrate 30 and an intermediate layer. At least a part of the intermediate layer of the honeycomb shaped porous ceramic body 9 has a structure in which aggregate particles are bonded to one another by a component of an inorganic bonding material. The inorganic bonding material is titania.
    Type: Application
    Filed: September 22, 2014
    Publication date: January 8, 2015
    Inventors: Tetsuya UCHIKAWA, Makoto MIYAHARA, Makiko ICHIKAWA, Kenji YAJIMA, Makoto TERANISHI, Hideyuki SUZUKI
  • Publication number: 20140353244
    Abstract: A method for the production of a hydrophilic polymer membrane (1), in particular for the production of a porous membrane for filtration or for use in functional textiles, whereby at least one hydrophilization additive (3) is used as a starting material for the membrane production, optionally, at least one additional aggregate, is/are admixed into an in particular hydrophobic polymer membrane material (2), whereby the membrane material (4) that has the hydrophilization additive (3) and optionally the additional aggregate is extruded to form a polymer film (5) that is charged with the hydrophilization additive (3) and optionally the additional aggregate, and whereby the polymer film (5) is stretched, in particular in a monoaxial and/or biaxial manner for pore formation.
    Type: Application
    Filed: January 15, 2013
    Publication date: December 4, 2014
    Inventors: Jörn Schröer, Daniel Placke
  • Publication number: 20140353231
    Abstract: The present application presents the development of a method for enhancing filtration capabilities of ceramic elements by chemically binding a hydrophilic compound throughout the porous structure of a ceramic element. An enhanced ceramic filter includes a ceramic element with chemically bound hydrophilic molecules. The enhanced ceramic filter is used in a system for the separation of non-polar compounds from aqueous mixtures. An aqueous mixture is passed through the enhanced ceramic filter, allowing water to permeate, and concentrate to exit the filter.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventors: Eduardo Gomez Maqueo Arechiga, Felipe Alberto Lembcke Barriga
  • Publication number: 20140353243
    Abstract: A process for manufacturing low soluble iron, medium flow rate diatomite filter aids and such filter aids are disclosed. Sodium aluminate is used as an additive. As compared to either straight calcined or soda ash flux-calcined diatomite filter aids of similar permeabilities made from the same ore, the disclosed filter aids have much lower iron solubilities. For instance, disclosed filter aids of about 0.3 to about 2.0 Darcy were made using an alkali aluminate as an additive/flux agent to have an EBC soluble iron content of less than 100 ppm versus more than 140 ppm for similar filter aids that were made from the same ore and flux-calcined with soda ash.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventors: Qun Wang, Peter Edward Lenz, Chongjun Jiang, Bradley Scott Humphreys
  • Patent number: 8900448
    Abstract: A treatment device for stormwater is provided that comprises a container which in use contains a growing medium and a hydrodynamic separator located within the container. The hydrodynamic separator comprises a separation chamber, an inlet duct extending from the outside of the container to the separation chamber, a solids outlet; and a liquid outlet that opens into the container. In use, liquid flow containing solids enters the separation chamber through the inlet duct and is caused to swirl within the separation chamber, thereby causing solids to exit the separation chamber through the solids outlet and liquid to exit the separation chamber through the liquid outlet and to flow into the growing medium.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: December 2, 2014
    Assignee: Hydro International PLC
    Inventors: Jeremy Fink, Andrew Pearson Nancollis, Robert Yaw Gyamfi Andoh, Keith Garry Hutchings
  • Patent number: 8894878
    Abstract: The present invention provides a nanopolymetallic reducing agent filler comprising 20%-70% iron powder, 10%-30% tourmaline power, 2%-15% copper power, 3%-10% bamboo charcoal powder, 2%-15% kaoline, 2%-15% magnesite powder, 2%-15% pyrolusite powder, and 10%-30% zeolite powder. All percentages described above are by weight. A process of forming the nanopolymetallic reducing agent filler is also provided, including grinding and ball milling raw materials of each component respectively into powder particles of 10 nm-100 ?m, which are then mixed uniformly by weight percentage and granulated to form a granular mixture, and sintering the granular mixture at high temperature or cold pressing it into a granular filler.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: November 25, 2014
    Assignee: T&H USA Group, Inc.
    Inventors: Liang Shuhong, Wang Meiling
  • 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: 8858821
    Abstract: A water treatment composition capable of effectively adsorbing pollutants from water is described. The composition includes magnetic extractants, which comprise magnetite nanoparticles containing functional groups. The composition is used to remove from water and aqueous streams oils and other contaminants. A process for removing contaminants from water and apparatus used in the process are also described.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: October 14, 2014
    Assignee: King Abdulaziz City for Science and Technology
    Inventors: Sulaiman M. Alfadul, Abdulrahman I. Alabdula'aly, Mujahid A. Khan
  • Publication number: 20140291224
    Abstract: An indefinite form filter medium layer includes filter media configured to capture suspended solids contained in a liquid to be treated and filtering aids configured to allow the suspended solids contained in the liquid to be treated to pass through the filtering aids. The filter media and the filtering aids are mixed together and the liquid to be treated is filtered by being passed through the filter media and the filtering aids as mixed together. A filter device includes the indefinite form filter medium layer and a filter tank configured to accommodate the indefinite form filter medium layer.
    Type: Application
    Filed: September 21, 2012
    Publication date: October 2, 2014
    Applicant: ISHIGAKI COMPANY LIMITED
    Inventors: Kunio Fujita, Hidetaka Ujike
  • Publication number: 20140231342
    Abstract: A filter medium of the present invention includes a porous carbon material having a value of a specific surface area by a nitrogen BET method of 1×102 m2/g or more, a volume of fine pores by a BJH method of 0.3 cm3/g or more, and a particle size of 75 ?m or more, alternatively, a porous carbon material having a value of a specific surface area by a nitrogen BET method of 1×102 m2/g or more, a total of volumes of fine pores having a diameter of from 1×10?9 m to 5×10?7 m, obtained by a non-localized density functional theory method, of 1.0 cm3/g or more, and a particle size of 75 ?m or more.
    Type: Application
    Filed: February 9, 2012
    Publication date: August 21, 2014
    Applicant: SONY CORPORANIZATION
    Inventors: Shun Yamanoi, Hironori Iida, Machiko Minatoya, Seiichiro Tabata, Shinichiro Yamada
  • Patent number: 8795522
    Abstract: An improved oil filter, for use with an internal combustion engine, comprises a hollow filter housing defining a chamber therein and having an inlet and an outlet with a flow path therebetween; a mechanically active filter member disposed inside the filter housing in the flow path; and a chemically active filter member disposed inside the filter housing in the flow path. The chemically active filter member comprises a plurality of composite oil additive pellets. The plurality of pellets is interconnected to form a substantially integral permeable member, and the substantially integral permeable member is impregnated with an alkaline composition. The alkaline composition is provided to counteract acidic combustion products in lubricating oil in an internal combustion engine.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: August 5, 2014
    Assignee: Fram Group IP LLC
    Inventors: Peter D. Unger, Ronald P. Rohrbach, Zafar Hussain, Weston H. Gerwin, Brian K. Artz, Daniel E. Bause
  • Patent number: 8777018
    Abstract: The present invention relates to a filtering device, facilitating the filtration of media to be cleaned, and also the cleaning of the filter material or filter elements in a filtering device. Said filtering device comprises at least one filter element arranged in a housing, with at least one filter material and at least one rebound element. The invention further relates to a cleaning device, comprising at least one nozzle, which is arranged perpendicularly and/or angularly in relation to the filter element for removing a filter cake on the filter material, wherein the cleaning medium at least partially penetrates the filter material during cleaning. The rebound element deflects the cleaning medium at least partially for renewed penetration through the filter material, while at least partially removing the filter cake at the same time.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: July 15, 2014
    Assignee: ETS Trade S.a.r.l.
    Inventors: Harald Schmidt, Frank Jonigkeit
  • Patent number: 8771506
    Abstract: A pervious concrete slab is pre-cast in a reusable mold or form to define at least one keyway configured and arranged to engage with a complementary keyway of another similar pre-cast pervious concrete slab. The concrete slab is then cured in a controlled environment, transported to an installation site, and installed.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: July 8, 2014
    Assignee: Percoa, Inc.
    Inventors: Brett Eugene Pomerleau, Katherina Theresa Bernhagen, Ryan Eugene Becker
  • Publication number: 20140158613
    Abstract: The present invention generally relates to porous ceramic material and to methods of making and using the material. More particularly, the invention relates to methods of forming ceramic materials by depositing material, using atomic layer deposition, onto a sacrificial substrate and to ceramic materials having controlled wall thickness, relatively large pores, and high surface area by weight.
    Type: Application
    Filed: April 3, 2012
    Publication date: June 12, 2014
    Applicant: The Regents of the University of Colorado
    Inventors: Alan W. Weimer, Xinhua Liang
  • Publication number: 20140131271
    Abstract: A nanoporous ceramic membrane and preparation method thereof is provided. The nanoporous ceramic membrane is prepared by halloysite nanotubes (HNTs), and its porosity is between 35% to 85%. This method comprises steps as following: HNTs and polymers with a certain ratio are dispersed in organic solvent, and HNTs/polymer composite fibers are prepared through electrospinning method; after the HNTs/polymers composite fibers are laminated, they are sintered at high temperature in a certain or vacuum atmosphere, and a nanoporous ceramic membrane is obtained. Ceramic membrane prepared by this method is corrosion resistant, thermal resistant, and have large specific surface area, it may widely applied in the field of filtration, catalyst carrier and purification of high-temperature gas, etc.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 15, 2014
    Applicant: THE HKUST FOK YING TUNG RESEARCH INSTITUTE
    Inventors: JINGSHEN WU, DONG LV, ZHEMING ZHANG, DAN LI
  • Publication number: 20140116936
    Abstract: The manufacturing method of nano porous material according to an example of the present invention comprises: a preparing step to prepare a substrate; and a manufacturing step to prepare nano porous material with a network structure in which nanoclusters are connected to each other using plasma deposition through over 300 mTorr of working pressure. Using the manufacturing method, it is possible to form a nano porous material having desired surface energy without formation of additional coating layer as well as pores distributed both within and on the surface of the nano porous material with only one deposition process.
    Type: Application
    Filed: August 22, 2013
    Publication date: May 1, 2014
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seong Jin KIM, Myoung Woon MOON, Kwang Ryeol LEE, Won Kyung SEONG, Wei DAI
  • Patent number: 8709252
    Abstract: A filter unit for treating water includes at least two ceramic filter membranes; and a mount for the at least two ceramic filter membranes, wherein the ceramic filter membranes are formed in the shape of plates and each have a filter-active outer side and at least one internally lying discharge channel for filtered water, the mount has a collection space, via which water leaving the discharge channels can be drained, and the mount has at least two sockets that liquid-tight fix the at least two ceramic filter membranes in which they are fixed so that the internally lying discharge channels are in communicating connection with the collection space and at least the part of the mount having the sockets for the ceramic filter membranes is a shaped part formed in one piece.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: April 29, 2014
    Assignee: ItN Nanovation AG
    Inventors: Kay Gabriel, Christof Gränitz
  • Patent number: 8702990
    Abstract: A fluid purification system, comprising: a first fluid purification media comprising a rigid porous purification block, comprising: a longitudinal first surface; a longitudinal second surface disposed inside the longitudinal first surface; and a porous high density polymer disposed between the longitudinal first surface and the longitudinal second surface; a second fluid purification media, comprising a fibrous, nonwoven fabric disposed adjacent to the first surface of the first fluid purification media, the second surface of the first purification media, or both.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: April 22, 2014
    Assignee: Selecto, Inc.
    Inventor: Ehud Levy
  • Patent number: 8701895
    Abstract: A fluid purification system, comprising: a first fluid purification media comprising a rigid porous purification block, comprising: a longitudinal first surface; a longitudinal second surface disposed inside the longitudinal first surface; and a porous high density polymer disposed between the longitudinal first surface and the longitudinal second surface; a second fluid purification media, comprising a fibrous, nonwoven fabric disposed adjacent to the first surface of the first fluid purification media, the second surface of the first purification media, or both.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: April 22, 2014
    Assignee: Selecto, Inc.
    Inventor: Ehud Levy
  • Patent number: 8668094
    Abstract: A carbon membrane structure includes: a cylindrical porous support body provided with a plurality of cells extending from one end face to the other end face and functioning as fluid passages, and a carbon membrane disposed on the surface side of the cells formed in the porous support body. The plurality of cells are formed so that a distance from one cell to another cell adjacent to the one cell in a cross section perpendicular to a cell extension direction of the porous support body 1 is 0.60 mm or more. The carbon membrane structure shows very excellent separation performance by the carbon membrane.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 11, 2014
    Assignee: NGK Insulators, Ltd.
    Inventor: Shogo Takeno
  • Publication number: 20140061122
    Abstract: The problem to be solved by the present invention is to provide a filter medium for a water treatment filter having contradictory characteristics, that is, hydrophilicity and chemical resistance, and a long life, and to provide the production method thereof. A filter medium for a water treatment filter according to the present invention is characterized in comprising a porous base material having a hydrophilic coating layer; wherein the hydrophilic coating layer has a cross-linked hydrophilic polymer and a high electron density part; a hydrophilic polymer in the cross-linked hydrophilic polymer is cross-linked with an aliphatic saturated hydrocarbon group which may contain one or more functional groups selected from a group consisting of an ether group, a hydroxy group and an amino group; the high electron density part has ? electrons; and the high electron density part is covalently bonded to the cross-linked hydrophilic polymer.
    Type: Application
    Filed: March 14, 2012
    Publication date: March 6, 2014
    Applicant: W.L. Gore & Associates, Co., Ltd.
    Inventors: Tomoka Ogura, Keiichi Yamakawa
  • Patent number: 8663465
    Abstract: A filtration and dispensing system that is particularly suitable for underdeveloped parts of the world is provided for storing, filtering, and dispensing rainwater, surface water, or groundwater. The system includes a bank of ceramic filters, a water retention container for holding water to be dispensed by the system, and at least one header tank to which water supplied from the water retention container is fed. A pump is utilized to withdraw water from a lower portion of the water retention container and supplied to the header tank. The withdrawn water is distributed by way of piping from the header tank to individual ceramic filters in the bank of ceramic filters, and a collection tank receives filtered water discharged from the bank of ceramic filters. Trickle feed nozzles or other discharge elements are used to discharge the filtered water from the collection tank for use.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: March 4, 2014
    Assignee: ATOPIA Research
    Inventors: Jane Harrison, David Turnbull, Wole Soboyejo
  • Patent number: 8622224
    Abstract: Water filtration media having a charged material affixed directly to binder material used in the fabrication of the filter media. A microbiological interception enhancing agent is added to the binder directly. The media having a charged material and a microbiological interception enhancing agent both affixed directly on a binder material is then combined with core filter media and prepared as a filtration media. A filter is prepared from the treated filter media.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: January 7, 2014
    Assignee: KX Technologies, LLC
    Inventors: Jinwen Wang, Meedia A. Kareem, Richard D. Kendrick, Andrew W. Lombardo, Frank A. Brigano