Plies Or Layers Of Different Characteristics Or Orientation Patents (Class 55/486)
  • Patent number: 10569211
    Abstract: A method of reinforcing a filter media pack as well as a reinforced media pack is provided. The method includes forming a media pack to have an inlet face and an outlet face. The method includes applying a reinforcing agent to the media pack. The reinforcing agent is applied in a flowable state. The method also includes hardening the reinforcing agent to form a reinforcing structure to reinforce the media pack. Filter element having such a reinforcing structure is also provided.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: February 25, 2020
    Assignee: Baldwin Filters, Inc.
    Inventors: Steven J. Merritt, Timothy L. Krull
  • Patent number: 10539982
    Abstract: The present disclosure provides a housing assembly, and the housing assembly is applied to an electronic device. The housing assembly includes a first part and a second part. The first part includes at least one opening. The second part includes at least one mesh area. The mesh area deformably connects to the first part, and covers the opening.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: January 21, 2020
    Assignee: ASUSTEK COMPUTER INC.
    Inventors: Chih-Kuang Lin, Szu-Tang Chiu, Wai-Tong Chan, Sin-Fei Lai
  • Patent number: 10478758
    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: April 13, 2015
    Date of Patent: November 19, 2019
    Assignee: Hollingsworth & Vose Company
    Inventors: Juergen Battenfeld, William E. Widrig, Eszter Nofz
  • Patent number: 10456727
    Abstract: A reusable air filter and methods are provided for filtering air being conducted to an air intake of an internal combustion engine. The reusable air filter comprises a filter medium configured to pass an airstream and entrap particulates flowing within the airstream. The filter medium is comprised of cotton gauze disposed in a sinusoidal arrangement that provides a filtration surface area that is larger than a perimeter area of the filter medium. An end cap and base may be configured to retain the filter medium therebetween. The base provides an interface between the air filter and an air inlet of the engine. The filter medium may be disposed in a flat, panel shape that is bordered by a supportive tray. Support rods may be embedded within the tray to prevent bowing of the tray due to air pressure when coupled with an air box of the engine.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: October 29, 2019
    Assignee: K&N Engineering, Inc.
    Inventors: Jere James Wall, Steve Williams
  • Patent number: 10415031
    Abstract: A method for processing forensic samples that include sperm cells from a perpetrator of sexual assault and epithelial cells that are primarily contributed by the victim is provided. The method includes providing a nanofiber filter that is formed of intermingled nanofibers having diameters of about 700 nm or less, selectively digesting the epithelial cells of a forensic sample and separating the sperm cells of the sample from the digested epithelial cells by filtration of the digest mixture through the nanofiber filter, the sperm cells becoming entrapped in the nanofiber filter. The captured sperm cells may then be digested to form a second digest mixture including digested sperm cell DNA. Using the first digest mixture filtrate and the second digest mixture, respectively, DNA samples may be isolated and DNA profiles may be obtained, the DNA profiles being useful for human identification. An apparatus and a kit for processing forensic samples obtained in sexual assault cases are also provided.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: September 17, 2019
    Assignee: InnoGenomics Technologies, LLC
    Inventor: Sudhir Sinha
  • Patent number: 10399026
    Abstract: An air filter for automobiles includes, a main filter and a prefilter, wherein the prefilter comprises a nonwoven synthetic fiber having an average density of 0.01 to 0.5 g/cm3 and a moisture absorbent is adsorbed to the prefilter.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: September 3, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yong Gyo Seo, Ju Yong Lee, Seong Youn Kwak
  • Patent number: 10357730
    Abstract: Fibrous filter medium that includes a melt-blown filter layer comprising melt-blown fibers and a high-efficiency glass-containing filter layer comprising glass fibers.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: July 23, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Qiong Gao, Gregory S. Tronnes, Rakesh Kumar Yadav, Michael A. Madden
  • Patent number: 10322380
    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: Grant
    Filed: October 18, 2016
    Date of Patent: June 18, 2019
    Assignee: Hollingsworth & Vose Company
    Inventors: Howard Yu, Sneha Swaminathan
  • Patent number: 10260418
    Abstract: The present application provides a method of evaluating media effectiveness in a gas turbine engine. The method may include the steps of receiving a baseline media effectiveness rating, receiving a media replacement cost, receiving a number of operating parameters from a number of sensors, based at least in part on the operating parameters and the baseline media effectiveness rating, determining a media effectiveness model, based at least in part of the media effectiveness model, determining a loss in evaporative benefit cost over time, determining a time t when the loss in evaporative benefit cost exceeds the media replacement cost, and scheduling media replacement at time t.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: April 16, 2019
    Assignee: General Electric Company
    Inventors: Hua Zhang, Naveen Ghattadhahalli Parmeshwar, Christopher Conrad Frese, Valery Ivanovich Ponyavin, Bradly Aaron Kippel
  • Patent number: 10252199
    Abstract: A method for removing retroviruses from liquid samples and a nanofiber containing liquid filtration medium that simultaneously exhibits high liquid permeability and high microorganism retention is disclosed. Retroviruses are removed from a liquid by passing the liquid through a porous nanofiber containing filtration medium having a retrovirus LRV greater than about 6, and the nanofiber(s) has a diameter from about 10 nm to about 100 nm. The filtration medium can be in the form of a fibrous electrospun polymeric nanofiber liquid filtration medium mat.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: April 9, 2019
    Assignee: EMD Millipore Corporation
    Inventors: Onur Y. Kas, Mikhail Kozlov, Wilson Moya, Sherry A. Leon, Philip Goddard, Jibin Hao, Gabriel Tkacik
  • Patent number: 10252200
    Abstract: Filter media comprising a filtration layer comprising synthetic fibers (e.g., pleatable backer layer) and related components, systems, and methods associated herewith are provided. In some embodiments, the filtration layer comprising synthetic fibers may be a non-woven web comprising a blend of coarse and fine diameter fibers. The filtration layer comprising synthetic fibers may be designed to have desirable performance properties without compromising certain mechanical properties, such as the pleatability of the media. In some embodiments, a filter media, described herein, may comprise the filtration layer comprising synthetic fibers and an efficiency layer. Filter media, as described herein, may be particularly well-suited for applications that involve filtering air, though the media may also be used in other applications.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: April 9, 2019
    Assignee: Hollingsworth & Vose Company
    Inventors: Nagendra Anantharamaiah, Sudhakar Jaganathan, Gerald Gadbois, Maxim Silin, Mark A. Gallimore
  • Patent number: 10239003
    Abstract: Provided is a nanofiber accumulated body having a high mechanical strength and excellent in durability, the polymer nanofiber accumulated body including polymer nanofibers each containing a polymer material, the polymer nanofibers being accumulated and three-dimensionally entangled with each other to form the accumulated body, in which: the polymer nanofibers each have a fiber diameter of 3 ?m or less; and the polymer nanofibers each contain 5 wt % to 30 wt % of a low-molecular weight organic compound having at least one ?,?-unsaturated ester structure, with respect to a total weight of the polymer nanofibers.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: March 26, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tetsuo Hino, Kaori Yasufuku, Kenji Takashima, Kazuhiro Yamauchi
  • Patent number: 10183249
    Abstract: A coated, reticulated foam air filter for filtering air suitable for respiration is described. The air filter comprises a reticulated foam structure and a nontoxic tackified coating applied to a functional surface of the foam structure.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: January 22, 2019
    Inventors: Bradley Allen Jensen, Robert Allen Jensen, Michael P Salladin
  • Patent number: 10040017
    Abstract: A plugged honeycomb structure includes: a pillar-shaped honeycomb substrate having a partition wall base material that defines a plurality of cells serving as a through channel of fluid; a plugging portion disposed at open ends of predetermined cells at an inflow-side end face of fluid and at open ends of residual cells at an outflow-side end face of fluid; and a porous trapping layer disposed at least at a surface of the partition wall base material of the residual cells. The partition wall base material is formed by a base material porous body including cordierite as a main phase, the trapping layer is formed by a trapping layer porous body including cordierite as a main phase, and a part of the trapping layer penetrating into pores formed at the partition wall base material has a thickness of 0 to 20 ?m.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: August 7, 2018
    Assignee: NGK Insulators, Ltd.
    Inventor: Yoshio Kikuchi
  • Patent number: 9901857
    Abstract: A filter element has a filter medium body with a plurality of filter segments that are joined to one another, of which at least two filter segments run adjacent and delimit an interposing intermediate space in which a support element is arranged for support on a housing component.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: February 27, 2018
    Assignee: MANN+HUMMEL GmbH
    Inventor: Fabian Wagner
  • Patent number: 9844999
    Abstract: An assembly having an intake connector with an air entrance for an air-conditioning system and a filter element having a concertina bellows having peripheral troughs and peripheral peaks, wherein the filter element has a water-repellent filter medium and wherein the filter element at least partially covers the air entrance, suitable for discharging snow and water, in particular snowmelt, to avoid flow into the air-conditioning system of a motor vehicle and to minimize damage to a filter element, wherein the concertina bellows is disposed so as to be inclined at an angle of 5° to 90°, preferably at an angle of 15° to 85°, in relation to the horizontal, wherein the filter element has an outflow unit for a water outflow from the peripheral troughs.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: December 19, 2017
    Assignee: CARL FREUDENBERG KG
    Inventor: Martin Krause
  • Patent number: 9716285
    Abstract: A method of manufacturing a proton conducting fuel cell composite membrane includes the step of electrospinning a non-charged polymeric material, such as PVDF and PSF, into fiber mats. The fibers are fused to one another to provide a welded porous mat. The welded porous mat is filled with proton conducting electrolyte, such as PFSA polymer, to generate a proton conducting composite membrane. The resulting proton conducting fuel cell membrane comprises a randomly oriented, three dimensional interlinked fiber lattice structure filled with proton conducting electrolyte, such as PFSA polymer.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: July 25, 2017
    Assignee: Audi AG
    Inventors: Mallika Gummalla, Zhiwei Yang, Peter Pintauro, Kyung Min Lee, Ryszard Wycisk
  • Patent number: 9700830
    Abstract: A device for removing carbon dioxide from the air has a reaction chamber having closed sidewalls and a removable end wall. There is a removable adsorber unit disposed in the reaction chamber that comprises an adsorbent mixture containing soda lime mixed with activated charcoal, and an air-permeable outer covering surrounding the adsorbent mixture. A louvered bed is disposed above the adsorber unit in the reaction chamber. The louvered bed has openings between angled louvers for directing air above the louvered bed into the removable adsorber unit. Air flowing into the reaction chamber is directed toward the adsorber unit by the louvered bed, so that the air flows between the louvers, through the openings and into the adsorber unit where the carbon dioxide in the air is adsorbed and removed from the atmosphere.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: July 11, 2017
    Inventors: Patrick Wang, Benjamin Chin
  • Patent number: 9630540
    Abstract: A headrest including: a trim cover element formed in a three-dimensional bag-like configuration, a fiber assembly; and a foam padding. The fiber assembly and foam padding are both provided within the trim cover element in such a manner that the fiber assembly is secured to and positioned on a front surface side of the trim cover element, whereas the foam padding is positioned on a rear surface side of the fiber assembly. The foam padding has been created by a foaming process so as to be integral with the trim cover element and fiber assembly.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: April 25, 2017
    Assignee: TACHI-S CO., LTD.
    Inventors: Kei Miyata, Junpei Yoshikawa
  • Patent number: 9541303
    Abstract: An alternative-fuel gas orifice, a gas furnace configured to employ the same and a method of designing a gas orifice. In one embodiment, the gas orifice includes: (1) a body having an aperture extending therethrough and including: (1a) a metering neck having a cross-sectional area such that a given flow rate of a gas is established when the gas is delivered to the gas orifice at a given alternative-fuel delivery pressure and (1b) a diffuser having a cross-sectional area larger than the cross-sectional area of the metering neck and a length such that the gas achieves a substantially laminar flow before exiting the diffuser.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: January 10, 2017
    Assignee: Lennox Industries Inc.
    Inventors: Hans J. Paller, Glenn W. Kowald
  • Patent number: 9508971
    Abstract: A gas-permeable filter provided with oil repellency is provided. The gas-permeable filter includes a porous membrane having a surface coated with an oil-repellent agent. The oil-repellent agent includes a linear fluorine-containing hydrocarbon group represented by —R1C5F10CH2C4F9 or —R2C6F13, and the porous membrane is a stretched polytetrafluoroethylene (PTFE) porous membrane. Here, R1 and R2 are each independently an alkylene group having 1 to 12 carbon atoms or a phenylene group. The gas-permeable filter is provided with oil repellency without significant reduction in gas permeability.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: November 29, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Yoshiki Ikeyama, Nobuaki Maruoka, Naofumi Kosaka, Asuka Onohara
  • Patent number: 9399184
    Abstract: A cyclonic portable vacuum cleaner/dust collector has a cyclonic chamber and a filter chamber. The filter chamber contains a filter cartridge with a hollow core positioned over the discharge opening of a motor plate that closes the filter chamber. A vacuum blower is mounted on the motor plate, with an intake tube at the discharge opening of the motor plate. An anti-deflagration screen mounted upon the discharge opening of the cover plate of the filter chamber. The anti-deflagration screen is in the form of a metal mesh creating a multiplicity of small passages to permit exhaust air flow from the filter chamber but blocking any flame front. The screen may be hemispherically domed.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: July 26, 2016
    Assignee: Oneida Air Systems, Inc.
    Inventors: Robert M. Witter, Jeffrey Hill, John J. Fitzsimmons
  • Patent number: 9387586
    Abstract: The invention relates to a robot transmission (1) for a multi-axis robot, in particular for a painting robot or a hand-held robot of a painting system for painting motor vehicle body components. Said transmission comprises a transmission housing (6) which is filled, when in operation, at least partially with a lubricant according to an operationally-dependent lubricant pressure, in order to lubricate the robot transmission (1), and has a construction-defined maximum pressure for the lubrication pressure. The transmission housing (6) is not air-tight if the lubrication pressure in the transmission housing (6) exceeds the maximum pressure. According to the invention, the robot transmission also comprises a pressure compensation device (7) which compensates the pressure in the transmission housing (6) and thus prevents the lubrication pressure in the transmission housing (6) from exceeding the maximum pressure.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: July 12, 2016
    Assignee: Dürr Systems GmbH
    Inventors: Andreas Collmer, Thomas Hezel
  • Patent number: 9387419
    Abstract: In a method for manufacturing a filter element for filtration of a fluid, a filter medium web is treated along at least one treatment line and the filter medium web is cut along at least one cutting line that is adjacent to the at least one treatment line. An apparatus for performing the method has a combination of at least one treatment device and at least one cutting device. The at least one treatment device has at least one treatment element that treats a filter medium web along at least one treatment line. The at least one cutting device has at least one cutting element that cuts the filter medium web along at least one cutting line. The at least one treatment element and the at least one cutting element, viewed in a movement direction of the filter medium web relative to the apparatus, are arranged staggered relative to each other.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: July 12, 2016
    Assignee: MANN+HUMMEL GMBH
    Inventors: Karel Dudr, Marek Brychta, Zdenek Netolicka
  • Patent number: 9375666
    Abstract: This invention is directed to a filter media for manufacturing pleated filters comprising a non-woven, needle punch felt including a blend of a first polyester fiber and a bi-component fiber wherein said bi-component fiber has a sheath and a core wherein said sheath has a melting point above 110° C. and said nonwoven felt has an efficiency of greater than 89% for particles size of 3 to 10 ?m as determined by testing method ASHRAE 52.2. The invention can include a top portion and a bottom portion manufactured from a web made from a carding process that is cross lapped, cut and overlapped so that said top portion and said bottom portion are entangled by a needle punching process to create a homogeneous arrangement prior to applying heat and pressure to stiffen the media for pleating.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: June 28, 2016
    Assignee: Southern Felt Company, Inc.
    Inventors: Eric Winters, John Lewis, Brian Fields, Edward D Andrew
  • Patent number: 9339953
    Abstract: A bumper for protecting a contact point of a surface from engagement with an object and a method of fabricating the same are provided. The bumper includes a shell having first and second ends, an outer surface, and an inner surface defining a passageway through the shell between the first and second ends. A resilient material is positioned in the passageway and extends between the first end and the second end of the shell.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: May 17, 2016
    Inventor: Richard D. Bushey
  • Patent number: 9296176
    Abstract: The present invention provides a laminiferous nonwoven fabric with a high woodpulp content suitable for use in wipes, absorbent articles and other applications, and a method of making the same. The laminiferous nonwoven comprises 3 layers bonded together, where the outer layers are lightweight meltspun webs and the middle layer comprises mainly woodpulp fibers. Each of the first (3), second (2) and third (4) nonwoven layer are preferably first formed separately and individually to be self-supported webs, whereafter the three self-supported webs are brought together essentially immediately before bonding them together. When used as a substrate for wet wipes, the inventive fabric exhibits a combination of several useful properties; good wet and dry softness and bulk, good wet abrasion resistance and low wet linting propensity, and where the majority raw material is woodpulp.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: March 29, 2016
    Assignee: Suominen Corporation
    Inventors: Pascale Escaffre, Gordon Meikle, Brian Nortman
  • Patent number: 9283508
    Abstract: A filter element includes: a filter member formed of a non-woven fabric formed by laminating a plurality of non-woven fabric layers and folding the thus formed non-woven fabric in form of pleat having a predetermined size along a width direction of the filter member; a holder frame formed of a soft material and disposed along an outer peripheral edge of the filter member, the holder frame being constituted by first and second frame members; and a reinforcing member having one end connected to the first frame member disposed along the width direction of the holder frame and having another end formed as a free end free from connection. The reinforcing member extends so as to intersect the width direction of the filter member.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: March 15, 2016
    Assignee: ROKI CO., LTD.
    Inventor: Hotaka Yoshino
  • Patent number: 9278302
    Abstract: A filter includes a filter cloth having a corrugated form, a retainer disposed inside the filter cloth, a support groove formed at each corrugated inside bent portion abutting on the retainer in a longitudinal direction of a filter film, and a reinforcement member inserted into the support groove.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: March 8, 2016
    Assignee: EPIT CO., LTD.
    Inventor: Jong Moon Kim
  • Patent number: 9190114
    Abstract: A disk drive includes a disk drive base, a rotating spindle attached to the disk drive base, and a disk mounted on the rotating spindle. A disk drive cover is attached to the disk drive base to enclose the disk in a disk drive enclosure. A filter within the disk drive enclosure includes first and second nanoporous adsorbent materials, each being either a metal organic framework material or a covalent organic framework material. The first nanoporous adsorbent material is fluorinated, and the second nanoporous adsorbent material is not fluorinated.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: November 17, 2015
    Assignee: Western Digital Technologies, Inc.
    Inventor: Mousumi Mani Biswas
  • Patent number: 9168476
    Abstract: Filter media including a microperforated film with tapered microperforations, and a nonwoven web positioned upstream of the microperforated film. Framed air filters incorporating such filter media, and methods of using such filter media.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: October 27, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Gustavo H. Castro, Stephen M. Sanocki, David F. Slama
  • Patent number: 9126131
    Abstract: An air filter for a ventilation system of a motor vehicle has a filter frame and a filter medium fastened in and surrounded by the filter frame. The air filter can be inserted along its two-dimensional extent into a receiving slot and is sealed, at least along the inserted regions of the filter frame, between the filter frame and walls of the insertion slot. To allow the filter to be installed in the ventilation system in as force-free and simple a manner as possible, the filter frame has, in the end side facing the insertion direction, at least one guide slot which is oriented in the insertion direction.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: September 8, 2015
    Assignee: Daimler AG
    Inventor: Klaus Arold
  • Patent number: 9114347
    Abstract: An air treatment system and method that uses inertial moisture separators in two stages for removing moisture present in intake air entering the air treatment system, thereby increasing the effectiveness and lifespan of high efficiency filters that otherwise may become clogged by accumulating moisture.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: August 25, 2015
    Assignee: BHA Altair, LLC
    Inventors: William Keith Albert Eyers, John Carl Davies
  • Patent number: 9072993
    Abstract: A filter medium includes a porous film and a support material supporting the porous film. The porous film includes polytetrafluoroethylene, has an average pore diameter of at least 2.5 ?m, and has a porosity of at least 95%. A pressure loss is less than 100 Pa when air is passed through the filter medium at a velocity of 5.3 cm/sec. A collection efficiency of NaCl particles is at least 95% when air including NaCl particles with a particle diameter of 0.3 ?m is passed through the filter medium at a velocity of 5.3 cm/sec. A PF value is at least 30, where PF={?log [(100?collection efficiency (%))/100]/pressure loss (Pa)}×1000. A dust holding capacity of polyalphaolefin particles held in the filter medium is at least 15 g/m2 when air including polyalphaolefin particles with a count median diameter of 0.25 ?m is continuously passed through the filter medium at a velocity of 5.3 cm/sec and pressure loss reaches 300 Pa.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: July 7, 2015
    Assignee: Daikin Industries, Ltd.
    Inventors: Kunihiko Inui, Yoshiyuki Shibuya, Shunji Kasai, Taku Yamanaka
  • Patent number: 9039800
    Abstract: A filter for a fluid-conducting pipe, in particular for a gas-conducting pipe of an internal combustion engine. The filter includes a self-supporting areal filter element and is fixable along a circumference 2 directly or indirectly in the pipe and, in so doing, covers a free cross section of the pipe. Here, the circumference 2 of the filter element 1 circumscribes a central filter plane 4. Furthermore, the filter element 1 or at least one layer thereof is comprised of a plastically deformable material and is provided with at least one undulation 5 or bead 13, which does not intersect the circumference 2, in such a way that the filter element 1 intersects the filter plane 4, or a plane 4a parallel thereto, at least four times within the circumference 2.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: May 26, 2015
    Assignee: Witzenmann GmbH
    Inventors: Fabian Elsasser, Thomas Kunzmann, Sebastian Reuss
  • Publication number: 20150128803
    Abstract: The present application provides a filtration unit for filtering a flow. The filtration unit may include one or more first layers and a second layer. The one or more first layers may include a prefilter layer and a wave layer.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: BHA Altair, LLC
    Inventors: Etienne Rene Pascal Jarrier, Stephen David Hiner
  • Publication number: 20150114230
    Abstract: This invention is directed to a filter media for manufacturing pleated filters comprising a non-woven, needle punch felt including a blend of a first polyester fiber and a bi-component fiber wherein said bi-component fiber has a sheath and a core wherein said sheath has a melting point above 110° C. and said nonwoven felt has an efficiency of greater than 89% for particles size of 3 to 10 ?m as determined by testing method ASHRAE 52.2. The invention can include a top portion and a bottom portion manufactured from a web made from a carding process that is cross lapped, cut and overlapped so that said top portion and said bottom portion are entangled by a needle punching process to create a homogeneous arrangement prior to applying heat and pressure to stiffen the media for pleating.
    Type: Application
    Filed: October 29, 2013
    Publication date: April 30, 2015
    Applicant: Southern Felt Company, Inc.
    Inventors: Eric Winters, John Lewis, Brian Fields
  • Publication number: 20150101486
    Abstract: Filter media including a microperforated film with tapered microperforations, and a nonwoven web positioned upstream of the microperforated film. Framed air filters incorporating such filter media, and methods of using such filter media.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 16, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Gustavo H. Castro, Stephen M. Sanocki, David F. Slama
  • Publication number: 20150090658
    Abstract: A fiber that has a unique surface topography in that it contains a plurality of nanohairs extending outwardly from an external surface of an elongate structure of the fiber is provided. To form the nanohairs, a polymer composition is spun that includes organofunctional nanoparticles (e.g., polyhedral organofunctional silsesquioxanes) embedded within a matrix of a base polymer. Despite being initially embedded within the polymer, the present inventors have discovered that, through selective control over the nature and relative concentration of the components of the composition, as well as the method in which the fiber is formed, a substantial portion of the nanoparticles can migrate to the surface of the fiber as it is formed and thus become arranged in the form of nanohairs.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Kelly Branham, Sara Honarbakhsh
  • Publication number: 20150089910
    Abstract: An air filter for a combustion engine for off-load motorcycles is made from a porous foam material. The air filter has contiguous side surface forming a cavity with at least two openings where the side surface contains at least one filter layer, a bottom surface closing at least one of the two openings where the bottom surface contains at least one filter layer, where the side surface has more air resistant than the bottom surface. The side surface has more air resistant than said bottom surface by arranging any combination of thickness of the surfaces, number of layers, and porosity ratio of the layers.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 2, 2015
    Inventor: AKIRA SASAKI
  • Patent number: 8986413
    Abstract: The invention relates to a filter module (1) for removing air-polluting materials from machine exhaust, comprising a filter housing (2) with an intake opening (5) and an outlet opening (6) for channeling machine exhaust through, at least one mounting element (24) for mounting the filter module (1) on a machine, and a filter assembly (7), arranged in the filter housing (2) and comprised of at least two filter groups (8), arranged in tandem in the direction of flow (3) and comprised of rod-shaped filter elements (10) with a filter medium (20), said elements being arranged parallel to one another at a constant center-to-center distance (9) and with their longitudinal axis largely crosswise to the direction of flow (3), wherein the filter elements (10) of two adjacent filter groups (8) are parallel to one another, and are arranged offset in relation to one another, crosswise to their longitudinal axes and to the direction of flow (3).
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: March 24, 2015
    Inventor: Erich Peteln
  • Patent number: 8986432
    Abstract: Filter media, as well as related assemblies, systems and methods. Filter media may contain one or more layers formed of a meltblown material.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: March 24, 2015
    Assignee: Hollingsworth & Vose Company
    Inventors: John A. Wertz, David T. Healey, William S. Freeman, John L. Manns, Mark Rowlands
  • Patent number: 8979961
    Abstract: The Invention relates to a vacuum cleaner filter bag comprising a bag wall, wherein the bag wall comprises precisely one nonwoven layer in the form of a melt-spur microfibrous nonwoven layer.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: March 17, 2015
    Assignee: Eurofilters Holding N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Patent number: 8979968
    Abstract: An air filter replacement system for existing buildings, vehicles, arenas, and other enclosed airspaces includes a replacement air filter for replacing a standard air filter. The replacement air filter has dimensions and air flow specifications that allow it to replace the standard air filter. The replacement air filter includes a filter material that removes radiological or biological or aerosol particles.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: March 17, 2015
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Jeffery J. Haslam
  • Publication number: 20150068174
    Abstract: A filter cartridge, a safety element and fluid cleaner assembly are described. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The filter cartridge generally comprises z-filter media, arranged in a straight through configuration. Preferred cartridges include a seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Preferred features are described. Methods of assembly and use are also provided.
    Type: Application
    Filed: July 10, 2014
    Publication date: March 12, 2015
    Inventors: William J. Krisko, Wayne R.W. Bishop, Steven S. Gieseke, Benny K Nelson
  • Publication number: 20150059303
    Abstract: The invention relates to a filter element (10) having a filter body (20 and a substantially axially sealing element (100) which is disposed at a peripheral surface (22) of the filter body (20), in particular foamed to the peripheral surface (22), wherein the sealing element (100) features a first sealing surface (102) and a second sealing surface (104) which are oppositely positioned to each other in axial direction with an axial gap (30). wherein the sealing element (100) features between the sealing surfaces (102, 104) at its circumference a contour (110) at which a contour segment (112, 114) each joins the sealing surface (102, 104) in an obtuse angle and the two contour segments (112, 114) abut at a joint (116). The invention relates furthermore to a filter system (200) with a replaceable filter element (10).
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Dominic Koenig, Marco Schilling, David Sachs
  • Patent number: 8968439
    Abstract: The composite microporour filter material comprises a base-cloth layer, an upper adhesion layer attached to a top side of the base-cloth layer, and a lower adhesion layer attached to a bottom side of the base-cloth layer. The base-cloth layer is made of either polymide yarn base-cloth, polysulfoneamide yarn base-cloth, or polytetrafluoroethylene filament base-cloth. The upper adhesion layer is made of a mixture of polysulfoneamide short-staple and polymide short-staple; the lower adhesion layer is made of a pure polysulfoneamide short-staple. The upper adhesion layer and the lower adhesion layer are attached to two sides of the base-cloth layer by entangling which is adopted by needle punching, spunlacing or a combination thereof. The present filter material is temperature-resistant and corrosion-resistant and has features of a low manufacturing cost and the high filter precision.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: March 3, 2015
    Assignee: Xiamen Savings Environmental Co., Ltd.
    Inventors: Weilong Cai, Xiangbo Luo, Zhangsheng Luo, Guoqiang Qiu, Limei Hong
  • Patent number: 8968445
    Abstract: The present invention provides regenerable pleated media and filter elements and combinations thereof for use in a clean room environment for removal of airborne molecular contamination. Disclosed is a pleated filter media for a clean room environment wherein the pleated filter media comprises at least an adsorbent first layer of activated carbon or polymer wherein said activated carbon or polymer together with fibers and/or an adhesion agent is enclosed between two second layers of non woven with a grid positioned on at least one side of either of the second layers or incorporated in the first layer for preventing deformation of the pleated filter media when regenerated by a heated air flow above 100° C. at 1 atm.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: March 3, 2015
    Assignee: Camfil AB
    Inventors: Christian Lindahl, Guillaume Gallet, Mikael Forslund
  • Publication number: 20150052864
    Abstract: A removable prefilter wrap having multiple layers is disclosed. The prefilter wrap may be configured to be placed around the outer circumference of a filter canister. The prefilter wrap has multiple layers for filtering water, oil(s), and/or other contaminants from an airflow.
    Type: Application
    Filed: August 22, 2014
    Publication date: February 26, 2015
    Inventor: Paul Jackson
  • 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