Including Fibers Patents (Class 210/505)
  • Patent number: 11077394
    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: August 3, 2021
    Assignee: Hollingsworth & Vose Company
    Inventor: Bruce Smith
  • Patent number: 11041258
    Abstract: The present disclosure provides a linear low density polyethylene composition, tapes, fibers and filaments, artificial turfs, and method of making the same. The linear low density polyethylene composition according to the present disclosure exhibits each of the following properties: (1) a CEF fraction from 70 to 90° C. of equal to or greater than 80% of the total CEF fractions; (2) a melt index, I2, measured according to ASTM D 1238 (2.16 kg @190° C.), in the range of equal to or greater than 2.0 g/10 min and equal to or less than 5.0 g/10 min; and (3) a melt flow ratio, I10/I2, of equal to or less than 6.7.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: June 22, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: David Lopez, Cornelis F. J. Den Doelder, Jesus Nieto, Barbara Bonavoglia, Frederik E. Gemoets
  • Patent number: 10722602
    Abstract: A method for removing microorganisms from liquid samples and a nanofiber containing liquid filtration medium that simultaneously exhibits high liquid permeability and high microorganism retention. Microorganisms such as bacteria, particularly B. Diminuta, are removed from a liquid by passing the liquid through a porous nanofiber containing filtration medium having a B. Diminuta LRV greater than about 9, and the nanofiber(s) has a diameter from about 10 nm to about 1,000 nm. Another method for removing microorganisms such as bacteria and Mycloplasma, includes passing the liquid through a porous nanofiber containing filtration medium having a microorganism LRV greater than about 8, and the nanofiber(s) has a diameter from about 10 nm to about 1,000 nm. The filtration medium can be in the form of a fibrous electro spun polymeric nanofiber liquid filtration medium mat.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: July 28, 2020
    Assignee: EMD MILLIPORE CORPORATION
    Inventors: Mikhail Kozlov, Wilson Moya, Gabriel Tkacik
  • Patent number: 10639572
    Abstract: The present disclosure provides styrene/acrylonitrile fine fibers, filter media including styrene/acrylonitrile fine fibers, a recirculation filter including a styrene/acrylonitrile fine fiber or filter media, and methods.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: May 5, 2020
    Assignee: Donaldson Company, Inc.
    Inventors: Daniel L. Tuma, Dmitry Luzhansky, Stanley B. Miller, III, Peter Viktorovich Medvedev
  • Patent number: 10543646
    Abstract: The illustrative embodiment comprises the sewing of fibers into a sewing substrate, which is then overmolded, to enable the manufacture of strong and lightweight articles with complex geometries.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: January 28, 2020
    Assignee: Arevo, Inc.
    Inventor: Hemant Bheda
  • Patent number: 10532378
    Abstract: The present technology provides a method for preparing an acid-reducing filter that includes depositing a mineral blend layer to a filter substrate, where the mineral blend layer comprises calcium carbonate and magnesium carbonate at a weight ratio of about 1:10 to about 10:1, the mineral blend is free of soluble halide or hydroxide salts of alkali or alkaline earth metals, and the mineral blend layer is insoluble in water.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: January 14, 2020
    Assignee: PHAM PRODUCTS LLC
    Inventors: Tyler Quill, Aaron Payne Stansell, Lucas Robert Votaw, Michele Rama Lauto, Frederick Scott Gray
  • Patent number: 10513084
    Abstract: The illustrative embodiment comprises the sewing of fibers into a sewing substrate, which is then overmolded, to enable the manufacture of strong and lightweight articles with complex geometries.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: December 24, 2019
    Assignee: Arevo, Inc.
    Inventor: Hemant Bheda
  • Patent number: 10239002
    Abstract: A filter material (2) for fluids, in particular hydraulic fluids, includes a filter medium (4) having at least one layer, and a supporting structure (6) partially made of a plastic material and resting flatly in some surface areas on at least one side of the filter medium (4). The filter medium (4) and the supporting structure (6) are connected to one another by laminating, covering and/or by a melting process.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: March 26, 2019
    Assignee: HYDAC FILTERTECHNIK GMBH
    Inventors: Matthias Schwender, Andreas Schmitz, Edwin Koch
  • Patent number: 10071334
    Abstract: A filter medium includes a first porous polytetrafluoroethylene membrane, a first air-permeable support member, a second porous polytetrafluoroethylene membrane, and a second air-permeable support member. A surface of the filter medium is formed by the first porous polytetrafluoroethylene membrane. A bond strength, as measured by a 180° peel test, between the first porous polytetrafluoroethylene membrane and the first air-permeable support member is higher than 1.2 N/25 mm and higher than a bond strength, as measured by the 180° peel test, between the first air-permeable support member and the second porous polytetrafluoroethylene membrane.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: September 11, 2018
    Assignee: NITTO DENKO CORPORATION
    Inventor: Shiho Wada
  • Patent number: 10064965
    Abstract: A method for removing microorganisms from liquid samples and a nanofiber containing liquid filtration medium that simultaneously exhibits high liquid permeability and high microorganism retention. Microorganisms such as bacteria, particularly B. Diminuta, are removed from a liquid by passing the liquid through a porous nanofiber containing filtration medium having a B. Diminuta LRV greater than about 9, and the nanofiber(s) has a diameter from about 10 nm to about 1,000 nm. Another method for removing microorganisms such as bacteria and Mycloplasma, includes passing the liquid through a porous nanofiber containing filtration medium having a microorganism LRV greater than about 8, and the nanofiber(s) has a diameter from about 10 nm to about 1,000 nm. The filtration medium can be in the form of a fibrous electro spun polymeric nanofiber liquid filtration medium mat.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: September 4, 2018
    Assignee: EMD Millipore Corporation
    Inventors: Mikhail Kozlov, Wilson Moya, Gabriel Tkacik
  • Patent number: 9962642
    Abstract: An improved air filter bag comprising a height from about 35 cm to about 50 cm; a nominal diameter from about 10 to about 40 cm; and a first taper angle from about 65° to about 83° is provided.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: May 8, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Pamela Marie Morison, Eiro Fukuda, Dana Paul Gruenbacher, Bryan Gabriel Comstock
  • Patent number: 9943616
    Abstract: A method for removing microorganisms from liquid samples and a nanofiber containing liquid filtration medium that simultaneously exhibits high liquid permeability and high microorganism retention. Microorganisms such as bacteria, particularly B. Diminuta, are removed from a liquid by passing the liquid through a porous nanofiber containing filtration medium having a B. Diminuta LRV greater than about 9, and the nanofiber(s) has a diameter from about 10 nm to about 1,000 nm. Another method for removing microorganisms such as bacteria and Mycloplasma, includes passing the liquid through a porous nanofiber containing filtration medium having a microorganism LRV greater than about 8, and the nanofiber(s) has a diameter from about 10 nm to about 1,000 nm. The filtration medium can be in the form of a fibrous electro spun polymeric nanofiber liquid filtration medium mat.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: April 17, 2018
    Assignee: EMD Millipore Corporation
    Inventors: Mikhail Kozlov, Wilson Moya, Gabriel Tkacik
  • Patent number: 9916482
    Abstract: Disclosed are fibers which contains identification fibers. The identification fibers can contain a plurality of distinct features, or taggants, which vary among the fibers and/or along the length of the identification fibers, a fiber band, or yarn. The disclosed embodiments also relate to the method for making and characterizing the fibers. Characterization of the fibers can include identifying distinct features, combinations of distinct features, and number of fibers with various combinations of distinct features and correlating the distinct features to supply chain information. The supply chain information can be used to track the fibers, fiber band, or yarn from manufacturing through intermediaries, conversion to final product, and/or the consumer.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: March 13, 2018
    Assignee: Eastman Chemical Company
    Inventors: Andrew Ervin McLeod, Scott Gregory Gaynor, Steven Anthony Wilson, Lydia Juanita Salyer, Humberto Collazo, Larry Wayne Renfro, Jeremy Kenneth Steach, Brian Douglas Seiler, Clarissa Tatum
  • Patent number: 9889214
    Abstract: A method for removing microorganisms from liquid samples and a nanofiber containing liquid filtration medium that simultaneously exhibits high liquid permeability and high microorganism retention. Microorganisms such as bacteria, particularly B. Diminuta, are removed from a liquid by passing the liquid through a porous nanofiber containing filtration medium having a B. Diminuta LRV greater than about 9, and the nanofiber(s) has a diameter from about 10 nm to about 1,000 nm. Another method for removing microorganisms such as bacteria and Mycloplasma, includes passing the liquid through a porous nanofiber containing filtration medium having a microorganism LRV greater than about 8, and the nanofiber(s) has a diameter from about 10 nm to about 1,000 nm. The filtration medium can be in the form of a fibrous electro spun polymeric nanofiber liquid filtration medium mat.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: February 13, 2018
    Assignee: EMD Millipore Corporation
    Inventors: Mikhail Kozlov, Wilson Moya, Gabriel Tkacik
  • Patent number: 9771669
    Abstract: In a method of making a carbon fiber, carbon nanotubes (CNT) are mixed into a solution including polyacrylonitrile (PAN) so as to form a CNT/PAN mixture. At least one PAN/CNT fiber is formed from the mixture. A first predetermined electrical current is applied to the PAN/CNT fiber until the PAN/CNT fiber is a stabilized PAN/CNT fiber. A heatable fabric that includes a plurality of fibers that each have an axis. Each of the plurality of fibers includes polyacrylonitrile and carbon nanotubes dispersed in the polyacrylonitrile in a predetermined weight percent thereof and aligned along the axes of the plurality of fibers. The plurality of fibers are woven into a fabric. A current source is configured to apply an electrical current through the plurality of fibers, thereby causing the fibers to generate heat.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: September 26, 2017
    Assignee: Georgia Tech Research Corporation
    Inventors: Satish Kumar, An-Ting Chien
  • Patent number: 9718004
    Abstract: A 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 filter medium layer and a filter tank configured to accommodate the filter medium layer.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: August 1, 2017
    Assignee: ISHIGAKI COMPANY LIMITED
    Inventors: Kunio Fujita, Hidetaka Ujike
  • Patent number: 9357289
    Abstract: A three-dimensional air-adsorbing structure. The structure has a three-dimensional, unitary, skeletal, porous scaffold, air-adsorbing material particles, and one or more hydrophobic binders that couple air-adsorbing material particles to each other to form agglomerates and couples particles and agglomerates to the scaffold. The structure has structure openings in the agglomerates and structure openings between agglomerates, such structure openings being open to the outside environment. The air-adsorbing material and the agglomerates are coupled to the scaffold by creating a water-based emulsion of air-adsorbing material, agglomerates of the material, and binder, and then impregnating the scaffold with this emulsion. The emulsion is dried at least in part at a temperature below the freezing point of the emulsion.
    Type: Grant
    Filed: November 28, 2015
    Date of Patent: May 31, 2016
    Assignee: Bose Corporation
    Inventor: Lifun Lin
  • Patent number: 9027765
    Abstract: Filter media suitable for various applications (e.g., hydraulic) and related components, systems, and methods associated therewith are described. The filter media may include a fiber web having a mixture of glass fibers and fibers that are fibrillated. The fibrillated fibers, for example, may be formed of lyocell.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: May 12, 2015
    Assignee: Hollingsworth & Vose Company
    Inventors: Juergen Battenfeld, William E. Widrig, Eszter Nofz
  • Patent number: 9017553
    Abstract: An apparatus, method, and system for treatment of industrial waste water and/or marine vessel bilge water before discharge into waterways, said waste water having hydrocarbon, and synthetic oils, chemical or surfactant based hydrocarbon emulsions, and water soluble hydrocarbons, containing hydrocarbon coated organics and fine suspended particulate matter, said treatment utilizing a hydrocarbon sorbing pre-filter media together with filter structural elements to first remove hydrocarbon contaminated organics and particulate, coalesce then bifurcate and adsorb heavier hydrocarbon elements; the remaining liquid entering the second stage of filtration wherein a cryogenically pulverized recycled tire powder material removes the remaining hydrocarbons, synthetic oils, hydrocarbon emulsions, and water soluble hydrocarbons, providing a highly clarified and oil free effluent at high flow rates and with substantially reduced filter system maintenance.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: April 28, 2015
    Inventor: Craig A. Mason
  • Patent number: 9010547
    Abstract: The present invention provides membranes having a coating layer comprising cellulose or cellulose derivative and a porous support comprising nanofibers prepared by a process of coating a solution comprising cellulose or a cellulose derivative dissolved in an ionic liquid on to a porous support layer. The present invention is useful for providing improved water flux and high rejection rates for oil/water emulsions. The present invention also provides fluid separation systems in UF, NF, RO and FO, incorporating membranes of the present invention.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: April 21, 2015
    Assignee: The Research Foundation of State University of New York
    Inventors: Benjamin Chu, Benjamin S. Hsiao, Hongyang Ma
  • Patent number: 8978899
    Abstract: A layer of fluoropolymer fine fiber can be made. The fine fiber can be made by electrospinning from a solvent or a solvent blend. The layers of the invention are useful in general filtration of fluid streams including gaseous and liquid streams. The fine fiber layers are also useful as hydrophobic filtration layers that can be used to separate water from a hydrocarbon stream.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: March 17, 2015
    Assignee: Donaldson Company, Inc.
    Inventors: Ismael Ferrer, Chuanfang Yang
  • Patent number: 8980104
    Abstract: An activated carbon cloth-supported bimetallic Pd—Cu nanocatalyst is disclosed comprising about 1 wt % Pd and about 0.35-0.45 wt % Cu and having a surface Cu/Pd metal ratio of about 8-10 m2/m2. The nanocatalyst is capable of removing nitrate and/or nitrite from wastewater with a high selectivity to nitrogen.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: March 17, 2015
    Assignee: Technion Research and Development Foundation Ltd.
    Inventors: Moshe Sheintuch, Uri Matatov-Meytal
  • Patent number: 8973762
    Abstract: An industrial absorbent and methods of manufacturing the same. In one embodiment, the industrial absorbent includes a first scrim made from at least one thermoplastic material; a second scrim made from at least one thermoplastic material; and a middle layer positioned between the first and second scrims. The middle layer includes a dry-laid web of fire-retardant treated cellulose and opened, individuated staple bicomponent fiber. At least some of the bicomponent fiber in the middle layer is thermally bonded to at least some of the cellulose in the middle layer, and the first and second scrims are thermally bonded to the middle layer.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: March 10, 2015
    Assignee: Sellars Absorbent Materials, Inc.
    Inventors: William R. Sellars, John C. Sellars, Thomas C. Shutt
  • Patent number: 8951420
    Abstract: Filter media, including those suitable for hydraulic applications, and related components, systems, and methods associated therewith are provided. The filter media described herein may include two or more layers, at least one of the layers having a relatively high percentage of microglass fibers. Additionally, the filter media may be designed such that the ratio of average fiber diameters between two layers is relatively small, which can lead to a relatively low resistance ratio between the layers. The filter media has desirable properties including high dirt holding capacity with low basis weight and a low resistance to fluid flow. The media may be incorporated into a variety of filter element products including hydraulic filters.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: February 10, 2015
    Assignee: Hollingsworth & Vose Company
    Inventors: Milind Godsay, Randall Keisler
  • Patent number: 8950587
    Abstract: Filter media, including those suitable for hydraulic applications, and related components, systems, and methods associated therewith are provided. The filter media described herein may include two or more layers, at least one of the layers having a relatively high percentage of microglass fibers. Additionally, the filter media may be designed such that the ratio of average fiber diameters between two layers is relatively small, which can lead to a relatively low resistance ratio between the layers. In some embodiments, at least one layer of the filter media comprises synthetic polymer fibers. Certain filter media described herein may have desirable properties including high dirt holding capacity and a low resistance to fluid flow. The media may be incorporated into a variety of filter element products including hydraulic filters.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: February 10, 2015
    Assignee: Hollingsworth & Vose Company
    Inventors: Cameron Thomson, Milind Godsay, Randall Keisler
  • Patent number: 8939295
    Abstract: A multi-layer, fluid transmissive structure is provided that comprises first and second fiber layers each comprising a plurality of polymeric fibers bonded to each other at spaced apart contact points. The polymeric fibers of these fiber layers have diameters greater than one micron and collectively define interconnected interstitial spaces providing tortuous fluid flow paths through the first and second fiber layers. The structure also comprises a plurality of nanofibers disposed intermediate at least a portion of the first fiber layer and at least a portion of the second fiber layer.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: January 27, 2015
    Assignee: Essentra Porous Technologies Corp.
    Inventors: Bennett C. Ward, Geoffrey M. Stoltz
  • Patent number: 8932470
    Abstract: An aggregate-removing filter material efficiently removes aggregates that are contained in a blood product for transfusion and may cause transfusion reactions without clogging, and exhibits excellent quality stability, and a blood product filtration method uses a filter apparatus that includes the aggregate-removing filter material and a leukocyte-removing filter material. The aggregate-removing filter material includes short fibers having a fineness of 0.7 to 4.0 dtex and a fiber length of 1 to 80 mm, and a ground fabric that includes long fibers, a fiber axis of the long fibers being oriented in a planar direction of the ground fabric, the short fibers being entangled with the ground fabric so that the aggregate-removing filter material has a total weight per unit area of 10 to 80 g/m2, and a layer of the short fibers forming a three-dimensional structure.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: January 13, 2015
    Assignee: Asahi Kasei Medical Co., Ltd.
    Inventors: Tatsuya Fukuda, Yoshimasa Matsuura
  • Patent number: 8906234
    Abstract: A filter device of the present disclosure includes a first port from which a solution containing a substance is to be input, and a first flow passage communicating with the first port. A filter portion made of a plurality of fibrous substances including inorganic oxide is formed in at least one part in the first flow passage. The plurality of fibrous substances has one peak in the diameter distribution.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 9, 2014
    Assignee: Panasonic Corporation
    Inventors: Takeki Yamamoto, Masaya Nakatani, Takuya Oka, Takahiro Nogami
  • Publication number: 20140353263
    Abstract: A coalescence media for separation of water-hydrocarbon emulsions, the coalescence media comprising an emulsion-contacting sheet formed as a single dry layer from a wet-laid process using a homogenously distributed, wet-laid furnish of (a) a mixture of fibrous components of (a1) at least one type of a first group of cellulose and/or cellulose-based fibers, and (a2) at least one type of a second group of fibers selected from the group consisting of fibrillated fibers and glass microfibers, and (b) at least one non-fibrous component selected from the group consisting of (b1) a dry strength additive, and (b2) a wet strength additive. The fibrous components of the coalescence media constitute at least about 70% of the coalescence media, and includes a pore structure sufficient to coalesce water droplets having a droplet size of <3.5 ?m in biodiesel blends or in surfactant stabilized water-hydrocarbon emulsions.
    Type: Application
    Filed: August 14, 2014
    Publication date: December 4, 2014
    Applicant: AHLSTROM CORPORATION
    Inventors: Christine STANFEL, Frank COUSART
  • Publication number: 20140346107
    Abstract: Polymer compositions that may be used to form fibers for a fiber web are generally described. In some embodiments, certain properties of the polymer compositions (e.g., molecular weight distribution, melt flow index, melt elasticity, and/or melt toughness) may allow the formation of fiber webs having fine fibers and a relatively low amount of process defects. In some instances, these properties of the polymer composition may be achieved by combining two or more polymer components. Fiber webs formed using the polymer composition may have increased performance and/or better structural characteristics compared to fibers webs formed using a single polymer component.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 27, 2014
    Applicant: Hollingsworth & Vose Company
    Inventors: Nagendra Anantharamaiah, William S. Freeman, Bruce Smith
  • Publication number: 20140326661
    Abstract: A filter and filter media configured and arranged for placement in a fuel stream is disclosed. The filter and filter media allow for filtering of liquid fuels, such as diesel fuel. In certain embodiments the filter media includes a media fiber, such as melt blown polyester; and a scaffold fiber, also such as such as melt blown polyester, having a larger diameter than the media fiber. The media and scaffold fibers combine to create a media structure having low solidity and relatively low compressibility, and which contain a pore structure that avoids premature fouling of the filter by fuel degradation products.
    Type: Application
    Filed: August 9, 2012
    Publication date: November 6, 2014
    Applicant: DONALDSON COMPANY, INC.
    Inventors: Mike J. Madsen, Brian Babcock
  • Patent number: 8871087
    Abstract: A device and method for purifying waste water and stormwater flows by passage through a filter, which can be manufactured in various configurations. The filter has a broad range of thickness ranging from 1 mm to 20 meters. The filter is comprised of fibers from a melt of composition of 50% silicon dioxide, 15% aluminum oxide, 15% calcium oxide, 10% magnesium oxide, and other various oxides at lower percentages. At least the majority of fibers having a mean diameter of 4 microns and a mean length of 3 mm. The fiber solids of content of the material are at most 35% of the volume at a flow rate greater than 1 inch per hour to remove various pollutants from the water flow.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: October 28, 2014
    Assignee: Modular Wetland Systems, Inc.
    Inventor: Greg B. Kent
  • Publication number: 20140305864
    Abstract: A method of fabricating an inorganic fibrous membrane, the method comprising the steps of: grafting sulfonated graphene oxide onto a scaffold of inorganic nanofibers to form a suspension of heterojunctions of the sulfonated graphene oxide and the scaffold; filtering the suspension through a support to obtain heterojunctions on the support; drying the heterojunctions on the support; and removing the support to obtain the inorganic fibrous membrane.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 16, 2014
    Inventors: Delai Darren SUN, Jincheng LIU, Tong ZHANG
  • Patent number: 8851298
    Abstract: An immiscible lipophilic or hydrophilic liquid phase is separated respectively from a continuous hydrophilic or a lipophilic phase liquid. Fibers having hydrophilic and hydrophobic properties are formed into a filter. The separation mechanism involves coalescence of the small droplets into larger droplets as the immiscible liquid flows through the fiber filter, and release of the large immiscible droplets from the filter. With respect to separation of a hydrophilic immiscible fluid in a lipophilic continuous fluid, the hydrophobic fibers cause small water droplets to migrate towards the hydrophilic fibers whereby large droplets are formed on hydrophilic surface. The large droplets coalescence until they are so large that they are released and drained off of the filter. The filter media can be designed by mixing hydrophilic and hydrophobic fibers in various proportions to achieve an optimum wettability range for separation of the immiscible liquid from the continuous phase liquid.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: October 7, 2014
    Assignee: The University of Akron
    Inventors: George Chase, Prashant Kulkarni
  • Patent number: 8845895
    Abstract: A bottled water filtration system for use with a water bottle, the system having a bottle cap, a nozzle formed in a first side of the bottle cap, a porous filter housing formed on a second side of the bottle cap, and a filter material located inside the porous filter housing, wherein the cap, nozzle and filter housing are formed as an integrated unit, which can be attached and removed from a water bottle as a unit. The system is preferably used with a disposable plastic water bottle. Additionally, the system may include a rotatable counter for keeping track of the number of effective uses remaining in the filter system. Also, a one-way air valve may be included to prevent “backwash.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: September 30, 2014
    Inventor: Mohssen Ghiassi
  • Patent number: 8833567
    Abstract: A coalescence media for separation of water-hydrocarbon emulsions comprises an emulsion-contacting sheet formed of: (a) at least one component of the group consisting of natural fibers, cellulose fibers, natural-based fibers, and cellulose-based fibers, at least one component of the group consisting of high-surface-area fibrillated fibers, surface-area-enhancing synthetic material, glass microfibers, and nanoceramic functionalized fibers; and (c) at least one component of the group consisting of a dry strength additive, and a wet strength additive, wherein the fibrous components of the media constitute at least about 70% of the media. In preferred embodiments, the coalescence media comprises kraft fibers, fibrillated lyocell fibers, glass microfibers or nanoceramic functionalized fibers, a wet strength additive, and a dry strength additive. Preferably, the coalescence media is formed as a single, self-supporting layer from a wet-laid process using a homogenously distributed, wet-laid furnish.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: September 16, 2014
    Assignee: Ahlstrom Corporation
    Inventors: Christine Stanfel, Frank Cousart
  • Publication number: 20140255100
    Abstract: A geocomposite with a geonet and a geotextile. The geotextile has a nonwoven fabric layer and a woven fabric layer, with the nonwoven fabric connected by needle-punching to the woven fabric whereby fibers of the nonwoven fabric extend through and beyond the woven fabric, and the woven fabric and fibers of the nonwoven fabric extending through the woven fabric are bonded to one side of the geonet.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 11, 2014
    Applicant: GSE Environmental, LLC
    Inventors: Mengjia Li, JR., Darrell L. Heathcott
  • Publication number: 20140238928
    Abstract: 1. Filter material (1) and filter clement (29) with filter material (1). 2. The invention relates to a filter material (1), in particular for hydraulic filters, such as oil filters, consisting of at least one individual layer (5) of a composite of glass fibres (7) with carbon fibres (9). The invention timber relates to a filter element with a corresponding filter material (1).
    Type: Application
    Filed: August 28, 2012
    Publication date: August 28, 2014
    Inventors: Edwin Koch, Matthias Schwender, Andreas Schmitz, Stefan Jochum
  • Publication number: 20140197094
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 17, 2014
    Applicant: Donaldson Company, Inc.
    Inventors: Robert M. Rogers, Keh B. Dema
  • Patent number: 8747668
    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 12, 2012
    Date of Patent: June 10, 2014
    Assignee: Ahlstrom Corporation
    Inventors: Christine M. Stanfel, Farina Diani Pangestu
  • Patent number: 8708162
    Abstract: Provided are nonwoven polymeric fiber webs using an improved curable composition. Such curable composition comprises an aldehyde or ketone and an amine salt of an inorganic acid. The composition when applied to polymeric fibers is cured to form a water-insoluble polymer binder which exhibits good adhesion and thermodimensional stability.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: April 29, 2014
    Assignee: Johns Manville
    Inventors: Kiarash Alavi Shooshtari, James Patrick Hamilton, Jawed Asrar
  • Publication number: 20140110354
    Abstract: Disclosed is composite media that may be utilized in coalescing elements, coalescing cartridges, coalescing systems, and coalescing methods. The disclosed media typically is a composite or laminate material formed by bonding adjacent layers of media material comprising bicomponent fibers.
    Type: Application
    Filed: March 14, 2013
    Publication date: April 24, 2014
    Applicant: Cummins Filtration IP, Inc.
    Inventors: William C. Haberkamp, Eric A. Janikowski, Kyle Ellison, Barry Mark Verdegan, Christopher E. Holm
  • Patent number: 8689985
    Abstract: Filtration media including at least one layer of nanofibers having average diameters less than 1000 nanometers with optional scrim layer(s) are disclosed for filtering particulate matter in liquid. The media achieve flow rates of at least 0.055 L/min/cm2 at relatively high levels of solidity. The media have also advantageously been found to have non-diminishing flow rates as differential pressures increase between 2 psi (14 kPa) and 15 psi (100 kPa).
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: April 8, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: W. Douglas Bates, III, Henricus Jacobus Cornelis Gommeren, Hageun Suh
  • Publication number: 20140091033
    Abstract: The object of the present invention is to provide carbon fiber material having high electrical conductivity at a low cost. A manufacturing method of carbon fiber material comprises a dispersion liquid preparation step, a centrifugal spinning step and a denaturation step. The dispersion liquid preparation step is a step in which dispersion liquid containing resin and carbon particles is prepared. The centrifugal spinning step is a step in which nonwoven fabric made of a carbon fiber precursor is formed from the dispersion liquid. The denaturation step is a step in which the carbon fiber precursor denatures into carbon fiber.
    Type: Application
    Filed: October 18, 2012
    Publication date: April 3, 2014
    Applicant: Tec One Co., Ltd.
    Inventor: Takahiro Kitano
  • Publication number: 20140076797
    Abstract: A fiber-based filter includes a filter-based porous body having a most frequent pore size from 0.1 ?m to 2 ?m in a pore size distribution, in which a ultra-fine fiber is continuously and randomly disposed, and a filtration layer having a nanonet layer having a most frequent pore size from 1 nm to 100 nm in the pore size distribution, in which an anisotropic nanomaterial is disposed. The fiber-based filter may have excellent filtration efficiency capable of removing even super-fine particles such as virus and heavy metal, and may show high permeation flow rate due to low loss of pressure during the filtration, and may be usefully used as an air and water-treatment filter.
    Type: Application
    Filed: February 11, 2013
    Publication date: March 20, 2014
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seong-Mu JO, Dong-Young KIM
  • Patent number: 8651286
    Abstract: Provided are spunbond polyester mats using an improved curable composition. Such curable composition comprises the reaction product of an aldehyde or ketone and an amine salt of an inorganic acid. The composition when applied to spunbond polyester continuous filaments is cured to form a water-insoluble polymer binder which exhibits good adhesion and thermodimensional stability.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: February 18, 2014
    Assignee: Johns Manville
    Inventors: Kiarash Alavi Shooshtari, James Patrick Hamilton, Jawed Asrar
  • Patent number: 8641796
    Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 4, 2014
    Assignee: Donaldson Company, Inc.
    Inventors: Robert M. Rogers, Keh B. Dema
  • 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
  • Publication number: 20130341290
    Abstract: Fiber webs which are used in filter media are described herein. In some embodiments, the fiber webs include fibrillated fibers and optionally non-fibrillated fibers, amongst other optional components (e.g., binder resin). In some embodiments, the fiber webs include limited amounts of, or no, glass fiber. The respective characteristics and amounts of the fibrillated fibers are selected to impart desirable properties including mechanical properties and filtration properties (e.g., dust holding capacity and efficiency), amongst other benefits.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 26, 2013
    Applicant: Hollingsworth & Vose Company
    Inventors: Howard Yu, Sneha Swaminathan
  • Patent number: 8613363
    Abstract: Disclosed is an integrated paper wherein the paper has capabilities and functionalities provided by both the fiber and the active agent ingredients, and a method of immobilizing the active agents within the integrated paper. The tight pore structure of the integrated paper of the present invention, a mean pore diameter of less than about 2 microns, provides short diffusion distances from a fluid to the surface of the paper ingredients by adsorption or diffusive interception making it an excellent medium for fluid filtration. The integrated paper of the present invention can further include a microbiological interception enhancing agent. The integrated paper can be formed using, preferably, wet laid paper-making processes for speed and efficiency. Also disclosed are devices utilizing the integrated paper useful in fluid filtration.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: December 24, 2013
    Assignee: KX Technologies LLC
    Inventor: Evan E. Koslow