Fibrous Or Strand Form Patents (Class 55/527)
  • Patent number: 10232306
    Abstract: A sorption drying system for dehumidification of a moist gas stream, includes a mass of absorbing material, a moist gas stream arranged to flow through at least a part of the absorbent mass, and a heated stream of regeneration gas arranged to flow through at least a part of the absorbent mass. The sorption drying system further includes structure for deflecting a part of the dehumidified gas stream after flowing through the absorbent mass, a cooler for cooling the deflected dehumidified gas stream, and structure for returning the cooled deflected dehumidified gas stream to the moist gas stream at the inlet into the absorbent mass. At least a part of the cooled deflected dehumidified gas stream is arranged to flow through the absorbent mass in a channel separated from the moist gas stream.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: March 19, 2019
    Assignee: CTT SYSTEMS AB
    Inventor: Robert Helin
  • Patent number: 10226723
    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 glass) and a binder fiber (such as bicomponent) that 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: Grant
    Filed: May 20, 2015
    Date of Patent: March 12, 2019
    Assignee: Donaldson Company, Inc.
    Inventors: Derek O. Jones, Keh B. Dema, Stephen M. Larsen, Mike J. Madsen, Andrew J. Dallas, Yehya A. Elsayed, Chuanfang Yang
  • Patent number: 9757333
    Abstract: Methods for preparing all-aqueous emulsions, including stable emulsions or emulsions having high viscosity and/or ultra-low interfacial tension are described. The method includes mixing, combining, or contacting a first electrically charged phase containing a first solute (e.g., dispersed phase) with at least a second phase containing a second solute (e.g., continuous phase). The solutes are incompatible with each other. The electrostatic forces between the two phases induce the formation of droplets of a dispersed phase in a continuous phase. The dispersed and continuous phases contain oppositely charged molecules, such as surfactants or other macromolecules and colloids which stabilize the drops of the dispersed phase. Complex coacervation of the oppositely charged molecules or colloids at the interface of the two aqueous phases results in formation of a membrane or barrier which prevents coalescence or aggregation of the droplets.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: September 12, 2017
    Assignee: Versitech Limited
    Inventors: Ho Cheung Shum, Yang Song, Zhou Liu
  • Patent number: 9616380
    Abstract: Sorption drying system for dehumidification of a moist gas stream, comprising a mass (1) of absorbing material, a moist gas stream (2) arranged to flow through at least a part of the absorbent mass, and a heated stream of regeneration gas (3) arranged to flow through at least a part of the absorbent mass. The sorption drying system further comprises means (4) for deflecting a part of the dehumidified gas stream after flowing through the absorbent mass, a cooler (5) for cooling the deflected dehumidified gas stream, and means (6; 7) for returning the cooled deflected dehumidified gas stream to the moist gas stream at the inlet into the absorbent mass. At least a part of the cooled deflected dehumidified gas stream is arranged to flow through the absorbent mass in a channel separated from the moist gas stream.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: April 11, 2017
    Assignee: CTT Systems AB
    Inventor: Robert Helin
  • Patent number: 9463683
    Abstract: To solve this problem, a desiccant humidity control technique is used, in which moisture emitted from passengers is absorbed, so as to suppress rising of an absolute humidity, by a desiccant which absorbs moisture in air or discharges moisture into air by the difference in relative humidity to air, and air with a high temperature is generated by utilization of heat generated by moisture absorption. This air is sprayed to a front window and other areas so as to cause defogging as well as heat the interior of the vehicle.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: October 11, 2016
    Inventor: Takumasa Watanabe
  • Patent number: 9358492
    Abstract: The various embodiments herein provide for an intelligent method and system with carbon nano tube filters for adsorbing and removing toxic and hydrocarbons in exhaust and in industrial soot. The carbon nano tube filter comprises two nano catalysts and monolith cylinders. The carbon nano tubes are single or multi walled. The nano catalysts are optimized carbon nano tubes coated with adhesive material, cobalt oxide and nano oxides of specific metals. The monolith cylinders are covered by palladium and rhodium oxides. The process of making the carbon nano tube based filter involves synthesis of highly purified carbon nano tube, surface modification of carbon nano tube with catalyst nano particle and optimization and deposition of nano metal oxides on the surface of nano catalyst. Further the nano-materials are coated on the internal surface of monoliths and the entire structure in subjected to sintering in a vacuum furnace.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: June 7, 2016
    Inventor: Rasoul Norouzian Ghahfarokhi
  • Patent number: 9056268
    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 glass) and a binder fiber (such as bicomponent) that 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: Grant
    Filed: February 14, 2011
    Date of Patent: June 16, 2015
    Assignee: Donaldson Company, Inc.
    Inventors: Derek O. Jones, Keh B. Dema, Stephen M. Larsen, Mike J. Madsen, Andrew J. Dallas, Yehya A. Elsayed, Chuanfang Yang
  • 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: 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: 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: 8956437
    Abstract: Articles such as filter media, which include dendrimers and/or other components, are provided. The filter media may further include a water repellant (e.g., a fluorinated species) to impart desirable properties to the media such as high water repellency. The filter media may also have a high efficiency as a function of pressure drop (i.e., high gamma values). In some embodiments, the filter media includes a fiber web which may be formed of various components such as glass fibers. The fiber web can also include additional components such as synthetic fibers, binder components, as well as other additives. The media may be incorporated into a variety of filter element products.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: February 17, 2015
    Assignee: Hollingsworth & Vose Company
    Inventors: David F. Sealey, Stuart Williams
  • 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: 8951324
    Abstract: The objective of the present invention is to provide an air filter medium having a lower pressure drop and higher efficiency as compared to an air filter medium currently in use. This objective is achieved by providing an air filter medium characterized by comprising glass short fibers as its main fibers in which the constituent fibers are dispersed uniformly and, when the constituting fibers at a diluted concentration of 0.04% by mass are allowed to stand for 12 hours, the sedimentation volume is 450 cm3/g or greater.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: February 10, 2015
    Assignee: Hokuetsu Kishu Paper Co. Ltd.
    Inventors: Toshihiko Soyama, Hiroshi Kuwano
  • Patent number: 8951336
    Abstract: The invention is directed to a vessel for separating solid particles from a gas containing solid particles, said vessel comprising a plate provided with openings across the vessel such that the plate divides the vessel in a first and second space, a number of filter elements extending from the openings into the first space, a vessel opening for receiving the gas containing solid particles, fluidly connected to the first space, an vessel outlet opening for discharge of solids, fluidly connected to the first space and a vessel outlet opening for gas, fluidly connected to the second space. The first space further comprises one or more cyclone separation devices having an inlet fluidly connected to the vessel opening for receiving the gas containing solid particles, a cyclone gas outlet fluidly connected to the first space and a solids cyclone outlet.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: February 10, 2015
    Assignee: Shell Oil Company
    Inventor: Hubertus Wilhelmus Albertus Dries
  • 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: 8940073
    Abstract: The invention relates to a filter material for cleaning air and gases, comprising a fiber layer (2) made of cellulose fibers bonded to each other in segments by pressing, thus compacting the cellulose fibers in the pressed areas (4).
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: January 27, 2015
    Assignee: McAirlaid's Vliesstoffe GmbH
    Inventor: Andreas Schmidt
  • Patent number: 8882876
    Abstract: Filter media suitable for various applications and related components, systems, and methods associated therewith are described. The filter media may include a fiber web having a mixture comprising non-fibrillated synthetic fibers and fibrillated fibers, such as lyocell. The fiber web may also include multi-component fibers (e.g., bi-component fibers). In some embodiments, glass fibers are not incorporated into the fiber web.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: November 11, 2014
    Assignee: Hollingsworth & Vose Company
    Inventors: Juergen Battenfeld, Eszter Nofz, Nicolas Clement
  • Publication number: 20140305306
    Abstract: A nonwoven fabric includes mixed fibers having different fiber diameters. A group of fibers having a fiber diameter of 5.0 ?m or less (fiber group A) is present at a volume fraction of 20 to 80 vol %, a group of fibers having a fiber diameter of 50.0 ?m or more (fiber group B) is present at a volume fraction of 1 to 40 vol %, and a group of fibers having a fiber diameter of more than 5.0 ?m and less than 50.0 ?m (fiber group C) is present at a volume fraction of 0 to 79 vol %. The ratio of the median fiber diameter (B?) of fiber group B to the median fiber diameter (A?) of fiber group A (B?/A?) is 35 or more.
    Type: Application
    Filed: November 27, 2012
    Publication date: October 16, 2014
    Inventors: Yuji Iyama, Akito Kuroda, Yoshikazu Yakake
  • Patent number: 8858669
    Abstract: An oil coalescing filter may be used in an oil separator tank with an industrial sized compressor/vacuum package, like a rotary screw compressor/vacuum or a liquid ring compressor/vacuum. The oil coalescing filter has filter media including: a first fiber media adapted for continuously removing oil; and a second fiber media adapted for final oil coalescing; the first fiber media having a greater basis weight than said second fiber media.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: October 14, 2014
    Assignee: Allied Separation Technology, Inc.
    Inventor: Jeffrey Lynn Gardner
  • Patent number: 8852306
    Abstract: The invention relates to a vacuum cleaner filter bag having a filter medium comprising a first layer consisting of a netting, a perforated sheet or a perforated non-woven with an air permeability of at least 10,000 l/(m2 s), and a first fiber layer consisting of man-made fibers and/or vegetable fibers and connected to one side of the first layer.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: October 7, 2014
    Assignee: Eurofilters Holdings N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20140260990
    Abstract: Fiber structures and methods are described that incorporate a body of a micron fiber modified by the attachment of discrete length, crimped nano-fibers. Numerous of these modified fiber structures can be assembled into air filter media. Further augmentations of the modified fibers and media can be implemented to improve filtration characteristics.
    Type: Application
    Filed: November 8, 2013
    Publication date: September 18, 2014
    Applicants: LMS Technologies, Inc., Products Unlimited, Inc.
    Inventors: Kui-Chiu Kwok, Al Vatine, Scott B. Beier, Gary Pospisal
  • Publication number: 20140237968
    Abstract: A bi-component fiber is provided. The bi-component fiber includes a sheath formed of polyphenylene sulfide (PPS) and a core formed of a high glass transition polyester. A PPS material of the sheath has a higher melting point than a high glass transition polyester material of the core. The core is at least partially crystallized whereby the high glass transition polyester material of the core effectively has a higher softening point than a softening point of the PPS material of the sheath.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 28, 2014
    Applicant: BHA Altair, LLC
    Inventors: Vishal Bansal, Jeffery Michael Ladwig, Rana Ghufran Rasheed
  • Patent number: 8790492
    Abstract: The fiber webs described herein may be incorporated into filter media and filter elements. The fiber webs may exhibit a high dust holding capacity. The fiber webs may also exhibit a low thickness. The fiber webs may be sufficiently flexible and/or deformable so that they may be processed to include a series of waves (also known as flutes) that extend along the cross-machine direction.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: July 29, 2014
    Assignee: Hollingsworth & Vose Company
    Inventors: James M. Witsch, Douglas M. Guimond
  • Patent number: 8784525
    Abstract: The invention relates to a vacuum cleaner filter bag having a composite material comprising a first layer consisting of a netting or a perforated sheet with an air permeability of at least 10,000 l/(m2 s), and a first fiber layer consisting of man-made fibers and/or vegetable fibers and connected to one side of the first layer.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: July 22, 2014
    Assignee: Eurofilters Holding N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20140196424
    Abstract: The present disclosure generally relates to filter media including glass fibers. The fiber characteristics (e.g., composition, dimensions) are selected to impart the desired solubility, filtration and mechanical properties so that the filter media may be used in the desired application.
    Type: Application
    Filed: March 14, 2014
    Publication date: July 17, 2014
    Applicant: Hollingsworth & Vose Company
    Inventor: Yuri Vulfson
  • Patent number: 8778046
    Abstract: The fiber webs described herein may be incorporated into filter media and filter elements. The fiber webs may exhibit a high dust holding capacity. The fiber webs may also exhibit a low thickness. The fiber webs may be sufficiently flexible and/or deformable so that they may be processed to include a series of waves (also known as flutes) that extend along the cross-machine direction.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: July 15, 2014
    Assignee: Hollingsworth & Vose Company
    Inventors: James M. Witsch, Douglas M. Guimond
  • Patent number: 8778047
    Abstract: The fiber webs described herein may be incorporated into filter media and filter elements. The fiber webs may exhibit a high dust holding capacity. The fiber webs may also exhibit a low thickness. The fiber webs may be sufficiently flexible and/or deformable so that they may be processed to include a series of waves (also known as flutes) that extend along the cross-machine direction.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: July 15, 2014
    Assignee: Hollingsworth & Vose Company
    Inventors: James M. Witsch, Douglas M. Guimond
  • Publication number: 20140182252
    Abstract: A filtering net, in particular for a rotary separator, has a plurality of cells, which are substantially equal to one another and are defined by the replication of a base cell along two transversal directions of replication; the base cell comprises at least one intermediate filament and a first and a second end filament, arranged on opposite sides of the intermediate filament; the intermediate filament and the end filaments extend along respective longitudinal axes which are parallel; cross-sectioning the base cell with any plane orthogonal to the longitudinal axes of the filaments and joining, on said plane, the trace of each longitudinal axis with the trace of the adjacent longitudinal axis by a respective straight line, the two straight lines are incident at the trace of the longitudinal axis of the intermediate filament and form an incidence angle of between approximately 90° and 160°.
    Type: Application
    Filed: December 30, 2013
    Publication date: July 3, 2014
    Applicant: GE AVIO S.r.l.
    Inventors: Stefano ZECCHI, Federico DELLAVALLE, Daniele COUTANDIN
  • Publication number: 20140165515
    Abstract: The nonwoven fabric is a blended filament nonwoven fabric including a blend of two types of filaments, wherein the two types of filaments are constituted of thermoplastic resins different from each other, an average fiber diameter obtained by dividing the total value of fiber diameters of the filaments present in the nonwoven fabric by the number of the constituent filaments is 0.1 to 10 ?m, and the nonwoven fabric has a specific volume of 12 cm3/g or more; the blended filament nonwoven fabric, wherein the ratio of the number of constituent filaments having fiber diameters of 0.1 to 3 ?m is 50% or more of the filaments constituting the nonwoven fabric, and the ratio of the number of constituent filaments having fiber diameters exceeding 3 ?m is 50% or less of the filaments constituting the nonwoven fabric; or the nonwoven fabric is produced by a melt-blowing process.
    Type: Application
    Filed: August 8, 2012
    Publication date: June 19, 2014
    Applicants: JNC FIBERS CORPORATION, JNC CORPORATION
    Inventors: Yasushi Matsuda, Junji Iwata, Mitsuru Kojima, Takafumi Ito
  • Publication number: 20140123613
    Abstract: Nonwoven filter media with an alpha value greater than about 13 generally includes a plurality of large diameter fibers, a plurality of ultrafine diameter fibers, and a binder. The large diameter fibers have an average diameter of greater than about 6 microns and make up more than about 60% by weight of the fiber web. The ultrafine diameter fibers have an average diameter of less than about 1 micron. Also disclosed is a method of manufacturing a filter media.
    Type: Application
    Filed: November 6, 2012
    Publication date: May 8, 2014
    Applicant: LYDALL, INC.
    Inventors: Herve Le Port, Guillaume Moreau
  • Patent number: 8715820
    Abstract: Odor-absorbing sheet-like structure comprising vegetable and/or manmade fibers, in particular a sheet-like structure having an air permeability suitable for filters and vacuum cleaner bags, which sheet-like structure has zinc ricinoleate in an amount in the range of 0.1 to 20% by weight, based on the weight of the sheet-like structure, in finely divided solid form on at least a part of the free fiber surface, and method for its production by treatment of a sheet-like structure with a dispersion of fine zinc ricinoleate particles or by spraying on a mist of a melt or solution of zinc ricinoleate.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: May 6, 2014
    Assignee: Neenah Gessner GmbH
    Inventors: Bernd Klausnitzer, Albrecht Klimmek, Ernst Raabe
  • Patent number: 8709121
    Abstract: A filter element that includes a disk-shaped filter medium having an axially upstream surface, an axially downstream surface, and an outer peripheral surface extending axially therebetween. An embodiment of the filter medium has a radial inlet flow surface formed along the outer peripheral surface. Further, there is an inlet flow surface formed along the axially upstream surface, wherein a fluid is able to flow both radially and axially through the filter element.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: April 29, 2014
    Assignee: PECOFacet (US), Inc.
    Inventors: David J. Burns, Daniel M. Cloud
  • Patent number: 8709120
    Abstract: The present disclosure generally relates to filter media including glass fibers. The fiber characteristics (e.g., composition, dimensions) are selected to impart the desired solubility, filtration and mechanical properties so that the filter media may be used in the desired application.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 29, 2014
    Assignee: Hollingsworth & Vose Company
    Inventor: Yuri Vulfson
  • Patent number: 8709118
    Abstract: Disclosed are improved polymer materials. Also disclosed are fine fiber materials that can be made from the improved polymeric materials in the form of microfiber and nanofiber structures. The microfiber and nanofiber structures can be used in a variety of useful applications including the formation of filter materials.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: April 29, 2014
    Assignee: Donaldson Company, Inc.
    Inventors: Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik
  • Patent number: 8709249
    Abstract: A filter has a filter medium (10) during operation clears fluid, particularly in the form of hydraulic fluid. The filter medium (10) is made of a material such that the potential difference to the fluid to be cleaned is low. The parts of the filter medium (10) have different potentials with respect to each other and/or the fluid to be cleaned such that they cancel each other at least partially, specific dissipation is aspired, or a return of electric charge to the associated filter medium (10) is provided, using a charge equalization situation.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: April 29, 2014
    Assignee: Hydac Filtertechnik GmbH
    Inventors: Andreas Schmitz, Edwin Koch, Matthias Schwender, Claudia Brocker
  • Publication number: 20140083291
    Abstract: A non-fouling, bypass filter is disclosed. The filter is formed of a tapered structure having particulate material filtering properties. The tapered structure has an open base and a closed top, with its exterior surface being exposed to a gas/fluid stream to be filtered. A gas/fluid stream generating device generates a gas/fluid stream that is drawn into the tapered structure's interior and that is filtered due to the particulate material filtering properties of the tapered structure. The external profile of the conically shaped structure is adapted to cause a plurality of gas/fluid streams from the ambient gas/fluid to flow against the exterior surface of the tapered structure to prevent the building up of particulate material on the exterior surface.
    Type: Application
    Filed: March 2, 2012
    Publication date: March 27, 2014
    Applicant: GAME CHANGERS, LLC
    Inventors: Andrew D. Zonenberg, Jason D. Sanchez, Piotr A. Garbuz
  • Publication number: 20140083066
    Abstract: A process for forming a high efficiency filter containing the steps of forming a non-woven layer having pores from a plurality thermoplastic fibers having a median diameter of less than about 2 micrometers, saturating the non-woven layer in a wetting liquid, and drying the wetted non-woven layer.
    Type: Application
    Filed: July 3, 2013
    Publication date: March 27, 2014
    Inventors: Pradipkumar Bahukudumbi, Kirkland W. Vogt, James R. Theobald
  • Patent number: 8679240
    Abstract: The present invention provides an allergen inhibitor which effectively prevents allergens from reacting with specific antibodies, mitigates the allergic symptoms or prevents appearance thereof, and is less likely to cause unpredictable discoloration and discoloration under usual conditions. The allergen inhibitor of the present invention comprises an allergen-inhibiting compound including a linear polymer having at least one of substituents represented by the formulas (1) to (3) at a side chain. Thus, the allergen inhibitor of the present invention shows excellent allergen-inhibiting effects.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: March 25, 2014
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Akihiko Fujiwara, Taro Suzuki, Mitsuhito Teramoto
  • Patent number: 8679218
    Abstract: Filter media are described. The filter media may include multiple layers. In some embodiments, the filter media include a nanofiber layer adhered to another layer. In some embodiments, the layer to which the nanofiber layer is adhered is formed of multiple fiber types (e.g., fibers that give rise to structures having different air permeabilities and/or pressure drops). In some embodiments, the nanofiber layer is adhered to a single-phase or a multi-phase layer. In some embodiments, the nanofiber layer is manufactured from a meltblown process. The filter media may be designed to have advantageous properties including, in some cases, a high dust particle capture efficiency and/or a high dust holding capacity.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: March 25, 2014
    Assignee: Hollingsworth & Vose Company
    Inventors: John A. Wertz, Douglas M. Guimond
  • Patent number: 8679216
    Abstract: A process for forming a laminate of a low basis weight nanoweb and a substrate includes forming a nanoweb on the surface of a collection scrim, and subsequently bringing the nanoweb into contact with a substrate coated with adhesive. The laminate is suitable for use as a gas filtration medium.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: March 25, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Antoine Schelling, Anil Kohli
  • Patent number: 8679217
    Abstract: A filter including a filter medium with a pleated structure. The medium includes a nanoweb layer and a scrim, wherein the nanoweb layer contains fibers with a number average diameter less than 1 micron and layer thickness less than 50 microns. The ratio of total medium thickness-to-pleat spacing is less than 0.15 and the nanoweb layer has a basis weight of more than about 0.6 gsm. The nonwoven scrim can be a spunbond web, a dry-laid web, a wet-laid web, a cellulose fiber web, a melt blown web and a glass fiber web.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: March 25, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Cheng-Hang Chi, Hyun Sung Lim
  • Patent number: 8663354
    Abstract: An air filter (111) comprising a duct (118, 120) forming a passageway extending between an inlet (116) and an outlet (113) of the air filter, the duct comprising bristles (310) extending from a wall of the duct across at least a portion of the passageway so as to remove entrained particles from air passing through the duct.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: March 4, 2014
    Assignee: 4Energy Ltd
    Inventors: Patrick Arthur Tindale, Stuart Peter Redshaw
  • Patent number: 8663358
    Abstract: Filter media are provided having improved conductivity to enhance filtration efficiency and/or dissipate static charge, and methods for making the same. In one exemplary embodiment, the filter media can include a filtration substrate, and at least one conductive coating disposed on at least a portion of the filtration substrate. In use, the conductive coating is coupled to an energy source and it is effective to emit ions when energy is delivered thereto to increase the efficiency of the filtration substrate and/or to dissipate or eliminate static charge generated during filtration.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: March 4, 2014
    Assignee: Hollingsworth & Vose Company
    Inventors: Wai M. Choi, Karin N. Soper
  • Patent number: 8657926
    Abstract: A device for condensing water includes a container with a plurality of openings and a heat transfer zone arranged in an interior of the container. The heat transfer zone includes a bulk material layer and/or a fiber layer and/or a textile layer and/or a grid layer and/or a lattice layer and/or a perforated plate. The interior of the container is subdivided by the heat transfer zone into a first zone and a second zone. Further, the heat transfer zone has at least in sections an open porosity and/or channels through which process gas can flow from the first zone to the second zone and through which a further process gas in the form of cooling gas can flow in a reverse direction. A permeable region of the heat transfer zone partially includes materials which have a thermal conductivity of more than 20 W(mK)?1 in a temperature range up to 300° C.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: February 25, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jürgen Mielke, Klaus Strätz
  • Publication number: 20140047809
    Abstract: The fiber webs described herein may be incorporated into filter media and filter elements. The fiber webs may exhibit a high dust holding capacity. The fiber webs may also exhibit a low thickness. The fiber webs may be sufficiently flexible and/or deformable so that they may be processed to include a series of waves (also known as flutes) that extend along the cross-machine direction.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 20, 2014
    Applicant: Hollingsworth & Vose Company
    Inventors: James M. Witsch, Douglas M. Guimond
  • Patent number: 8652230
    Abstract: A filter fabric having improved filtering properties for hot gas filtration containing a nonwoven aramid mat The mat has a basis weight of at least 9.7 ounces per square yard (330 grams per square meter) and is characterized by a pore size distribution in which the number of pores in a given range as measured by ASTM F316-03 test method is plotted against pore size. In a preferred embodiment, the percentage of pores having a size in between 10 and 26 microns is greater than 50% while the percentage of pores having a size of greater than 50 microns is less than 0.5%.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: February 18, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Kurt Hans Wyss, Cheng-Hang Chi
  • Patent number: 8652229
    Abstract: A filtration device including a filtration medium having a plurality of nanofibers of diameters less than 1 micron formed into a fiber mat in the presence of an abruptly varying electric field. The filtration device includes a support attached to the filtration medium and having openings for fluid flow therethrough. A device for making a filter material. The device includes an electrospinning element configured to electrospin a plurality of fibers from a tip of the electrospinning element, a collector opposed to the electrospinning element configured to collect electrospun fibers on a surface of the collector, and an electric field modulation device configured to abruptly vary an electric field at the collector at least once during electrospinning of the fibers. A method for making a filter material.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: February 18, 2014
    Assignee: Research Triangle Institute
    Inventors: David S. Ensor, Howard J. Walls, Anthony L. Andrady, Teri A. Walker
  • 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