Materials Patents (Class 181/294)
  • Patent number: 11461387
    Abstract: In an aspect, provided are methods, systems, and apparatuses comprising receiving a query specifying one or more materials of a floor/ceiling assembly and/or a classification or result, determining one or more media files responsive to the query, and providing the one or more media files for playback.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: October 4, 2022
    Assignee: COLUMBIA INSURANCE COMPANY
    Inventors: Joseph M. Woodall, Julie B. Brumbelow, Barrett R. Morton, Alan Buttenhoff, Robert Blane Haywood, David Pearson
  • Patent number: 11339845
    Abstract: An acoustic shield for protecting a vibrational sensitive device includes a first unit cell and a second unit cell. The first unit cell includes a first locally resonant unit. The first locally resonant unit controls a first phase gradient and the first unit cell includes a first surface. The second unit cell includes a second surface proximate to the first surface. The second unit cell includes a second locally resonant unit embedded along the second interface. The second locally resonant unit controls a second phase gradient. The first phase gradient is different from the second phase gradient. The first unit cell and the second unit cell comprise a super cell. The acoustic shield is configured such that a vibrational wave from a first side of the super cell to a second side of the super cell is substantially attenuated.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: May 24, 2022
    Assignees: National Technology & Engineering Solutions of Sandia, LLC, Purdue Research Foundation
    Inventors: Timothy Walsh, Fabio Semperlotti, Hongfei Zhu
  • Patent number: 11273489
    Abstract: The mechanical properties and thermal resistance of a sintered component made from an Al—Cu—Mg—Sn alloy powder metal mixture can be improved by doping the Al—Cu—Mg—Sn alloy powder metal mixture with a silicon addition. Silicon is added as a constituent to the Al—Cu—Mg—Sn alloy powder metal mixture. The Al—Cu—Mg—Sn alloy powder metal mixture is compacted to form a preform and the preform is sintered to form the sintered component.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: March 15, 2022
    Assignee: GKN Sinter Metals, LLC
    Inventors: Donald Paul Bishop, Richard L. Hexemer, Ian W. Donaldson, Randy Williams Cooke
  • Patent number: 10988939
    Abstract: Floor panel with a substrate, including thermoplastic material, a decor provided thereon, and, on at least one pair of opposite edges, coupling parts realized at least partially from the substrate. The coupling parts allow to effect a mechanical locking between two of floor panels, where the substrate includes a rigid substrate layer of thermoplastic material, and a glass fiber layer is present in the floor panel.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: April 27, 2021
    Assignee: IVC BV
    Inventors: Kristof Van Vlassenrode, Paul Brusseel, Nick Vanhulle, Jochen Bossuyt
  • Patent number: 10603981
    Abstract: A vehicular speaker temperature control device may include: a sensing unit configured to sense a temperature of a vehicle; an amplifier unit configured to amplify a sound of the vehicle; a speaker unit connected to the amplifier unit and configured to output the amplified sound; and a controller in operable communication with the sensing unit and the amplifier unit. The controller may receive a current temperature of the vehicle measured by the sensing unit, to determine whether the current temperature of the vehicle is less than or equal to a preset reference temperature, and when the current temperature of the vehicle is less than or equal to the preset reference temperature, to control operation of the amplifier unit so as to cause an increase in temperature of the speaker unit by applying a driving signal of a specific frequency to the speaker unit.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: March 31, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Yong Hwan Hwang
  • Patent number: 10438574
    Abstract: Disclosed are a sound absorbing and insulating material and a method for manufacturing the same. The sound absorbing and insulating material may be manufactured by impregnating a polyimide binder into a nonwoven fabric formed of a heat-resistant fiber. As such, the sound absorbing and insulating material may have superior sound-absorbing property, flame retardancy, heat resistance and heat resistance, thus being applicable to parts maintained at high temperatures of 300° C. as well as at room temperature and moldability due to the use of the polyimide binder.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: October 8, 2019
    Assignee: Hyundai Motor Company
    Inventor: Keun Young Kim
  • Patent number: 10267207
    Abstract: A muffler for an exhaust system includes an exhaust gas duct pipe (20) and a wall (26). The wall (26) is connected to the exhaust gas duct pipe (20) in a first connection area (24) thereof by a thread meshing.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: April 23, 2019
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Michael Krause, Jürgen Häberle
  • Patent number: 9950957
    Abstract: A roof cover board made from a mixture of 30-60% stucco; 20-50% perlite; 10-30% cellulose fiber; 3-20% starch; and siloxane. Also disclosed is a stucco-free roof cover board made from a mixture of 30-60% perlite, 30-60% cellulose fiber, 5-25% starch; and siloxane. Also disclosed are methods for making same.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: April 24, 2018
    Assignee: UNITED STATES GYPSUM COMPANY
    Inventors: Yufeng Xu, Eugene S. Stivender
  • Patent number: 9896807
    Abstract: An acoustical tile including: 8 to 25 wt % mineral wool, 9 to 15 wt % starch binder, 9 to 15 wt % cellulosic fiber, wherein preferably the cellulosic fiber is newsprint, and 40 to 65 wt % perlite, wherein the weight ratio of the starch to the cellulosic fiber is 0.6 to 1.3:1; and a process for making the acoustical tile.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: February 20, 2018
    Assignee: USG INTERIORS, LLC
    Inventors: Mark H. Englert, William A. Frank
  • Patent number: 9663623
    Abstract: An asphalt damping sheet, which comprises the following components in indicated amounts based on the total mass of the asphalt damping sheet: a paint slag-containing waste limestone powder 20-50 parts; soft pitch 1-5 parts; hard pitch 11-15 parts; a non-metallic mineral 29-59 parts; PET short fiber 0.1-1.5 parts; and said non-metallic mineral is selected from the group consisting of quartz sand, pottery clay and mica powder. The technical process in the invention uses the paint slag-containing waste limestone powder generated in dry separation process of overspray adopted by vehicle manufacturer paint shops as filler in the asphalt damping sheets, such asphalt damping sheets can be used in the field of machine manufacturing such as automobiles and ships, and also can be used in the field of building waterproof materials, and the goal of resource recycling is achieved.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: May 30, 2017
    Assignee: SHANGHAI YIKE GREEN ENGINEERING CO., LTD.
    Inventor: Xiaolei Wang
  • Patent number: 9038774
    Abstract: Embodiments of thermal-acoustic sections for an aircraft for reducing noise along an acoustic path produced from an acoustic source are provided herein. The thermal-acoustic section comprises a first porous layer having a first characteristic acoustic impedance. A second porous layer is disposed adjacent to the first porous layer and has a second characteristic acoustic impedance that is greater than the first characteristic acoustic impedance. The thermal-acoustic section is configured to be positioned along the acoustic path such that at least a portion of the noise from the acoustic source is directed through the first porous layer to the second porous layer to promote absorption of the noise.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: May 26, 2015
    Assignee: Gulfstream Aerospace Corporation
    Inventors: Tongan Wang, John Maxon, Andrew Foose, David Charles Hornick, Josef Fila
  • Patent number: 9033102
    Abstract: An acoustic damping article includes a substrate, wherein the substrate has a surface area S. The acoustic composition further includes a polymer resin. The polymer resin coats partially the surface area with a set of areas. The ratio of the coated areas over the surface area S is less than 1 and the polymer resin coverage is not greater than about 500 g/m2.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: May 19, 2015
    Assignee: SAINT-GOBAIN PERFORMANCE PLASTICS CHAINEUX
    Inventors: Sylvain Payot, Georges Moineau, Benjamin Mardaga, Ahmet Comert
  • Publication number: 20150132556
    Abstract: The present invention includes a moldable, flame retardant acoustical fiber system including a nonwoven, moldable layer of a blend of fibers, with a flame retardant coating applied on both top and bottom sides of the moldable layer. The system also includes a spun bond nonwoven black surface adhered to the flame retardant coating on one side of the nonwoven layer. The moldable, flame retardant acoustical fiber system is configured to meet the UL 94 V-0 flame test standard.
    Type: Application
    Filed: July 12, 2012
    Publication date: May 14, 2015
    Inventor: Barry Wyerman
  • Publication number: 20150129354
    Abstract: The application provides a thermo-acoustic protection structure for a rotating machine. The thermo-acoustic protection structure includes an upper wall and a parallel lower wall, and between them is placed at least one acoustic absorbent material. The upper wall and the lower wall being connected with at least one connecting element of an extended form. The connecting element presenting, in transverse section, at least one portion, curved or rectilinear, that is non-orthogonal to the two walls. A length of the connecting element between the upper wall and the lower wall is greater than a distance between the upper wall and the lower wall. The connecting element further presents in transverse section at least one edge.
    Type: Application
    Filed: October 16, 2014
    Publication date: May 14, 2015
    Inventor: Frédéric Billy
  • Publication number: 20150129355
    Abstract: A sound absorbing material comprising a nonwoven fibrous acoustic insulation material and a flow resistive nonwoven facing, wherein the flow resistive nonwoven facing is bonded to the insulation material and has an air flow resistance of from about 600 to about 1800 Rayls and a surface mass of from about 20 to about 150 g/m2.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 14, 2015
    Inventors: Michael William Coates, Marek Kierzkowski, Philip John Gibbons
  • Patent number: 9027705
    Abstract: There is provided a sound absorbing member lamination structure in which the functions by the sound field adjustment can effectively be achieved by preventing the sound reflection against an intension of design in a boundary between the sound absorbing member and the other layer, when the sound absorbing member and the other layer are laminated into a united body. When the sound absorbing member and the other layer are placed in a stacked state, they are bonded with the use of a pressure-sensitive adhesive, so that the sound absorbing member and the other layer are combined together, with the pressure-sensitive adhesive kept uncured in a stacked state of the sound absorbing member and the other layer. Thus, such an uncured pressure-sensitive adhesive does not become a reflection portion of a sound. It is therefore possible to cause the sound to pass through appropriately the boundary between the respective layers.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: May 12, 2015
    Assignee: Aural Sonic Inc.
    Inventors: Hidekazu Furusawa, Yasuya Kubota
  • Publication number: 20150122578
    Abstract: An acoustic device is provided with an outer casing comprising a molded article which is made of a resin composition having a loss factor of 0.04 or more, the resin composition comprising a resin component comprising poly(lactic acid) and/or a lactic acid copolymer in an amount of 50% by weight or more, and at least an inorganic filler, a hydrolysis inhibitor, and a plasticizer.
    Type: Application
    Filed: January 8, 2015
    Publication date: May 7, 2015
    Inventors: Takashi NAGASHIMA, Suguru NAKAO, Naoto TADA
  • Publication number: 20150118437
    Abstract: The invention relates to a motor vehicle part material structure for sound insulation for the motor vehicle interior and motor vehicle trunk, namely floor mats floor coverings, and trunk linings, that makes it possible to industrially implement complete reprocessing of the entire composite, in particular the fiber material. The motor vehicle part has a PIT fiber layer, an optional substrate layer made of PET and/or COPET, an optional PET adhesive layer, a PET adhesive layer, a layer made of PET fiber nonwoven & brie or woven fabric, and an insulating layer made of PET/COPET.
    Type: Application
    Filed: April 29, 2013
    Publication date: April 30, 2015
    Inventors: Volkmar Schulze, Norbert Nicolai, André Feole, Fabrizio Fornasa, Federica Filotto
  • Patent number: 8997924
    Abstract: A utility material can include microparticles, an organic binder and an inorganic binder. The microparticles can be present in an amount from about 25 wt % to about 60 wt %, based on wet formulation. The inorganic binder can optionally include sodium silicate. The organic binder can optionally include a vinyl acetate. The utility material can be formed into a variety of different products or building materials, such as wallboard, shear panels. In addition, the building material may be particularly used to attenuate sound.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: April 7, 2015
    Assignee: AshTech Industries, LLC
    Inventors: Michael D. Kipp, Dilworth L. Pugh, Michael D. Ridges, William T. McCarvill
  • Patent number: 8997925
    Abstract: Disclosed is a highly heat resistant sound absorbing material for a vehicle capable of maintaining a shape even at high temperatures of about 200° C. or above and which satisfies UL 94V-0 flame retardancy. More particularly, the a highly heat resistant sound absorbing material includes a fiber material having a limiting oxygen index (LOI) of at least about 25% and capable of maintaining a shape at a temperature of about 200° C. or above, and a thermosetting binder resin capable of maintaining a shape at a temperature of about 200° C., wherein the fiber material and thermosetting binder resin are provided at a specific proportion.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: April 7, 2015
    Assignees: Hyundai Motor Company, Kia Motors Corporation, NVH Korea, Inc.
    Inventors: Keun Young Kim, Bong Hyun Park, Won Jin Seo, Youn Jin Cho, Ki Dong Lee, Su Nam Lee
  • Publication number: 20150090526
    Abstract: A sound absorbing board (1) that is a sound absorbing board where a decorative layer (2) and a rigid substrate material (3) are laminated, and where the substrate material contains parallel grooves (4) spaced at a pre-determined distance, and also, where the cross sectional surface of the grooves in a direction perpendicular to the longitudinal direction of the substrate has a shape that contains mutually adjacent neck parts (4a) and trunk parts (4b) is described. The sound absorbing board has decorative properties and at the same time has sound absorbing, sound isolation properties, and can be easily processed.
    Type: Application
    Filed: May 23, 2013
    Publication date: April 2, 2015
    Inventor: Makoto Sasaki
  • Publication number: 20150075902
    Abstract: A sound-damped insulating glazing is described. The glazing has a first pane and a second pane, a peripheral spacer between the first pane and the second pane, an externally encircling seal in a gap between the first pane, the peripheral spacer and the second pane, a vacuum insulating panel between the first pane, the second pane and the peripheral spacer, and at least one acoustic insulating plate is arranged on at least one surface of the vacuum insulating panel.
    Type: Application
    Filed: July 19, 2012
    Publication date: March 19, 2015
    Inventors: Walter Schreiber, Katrin Frank
  • Publication number: 20150061174
    Abstract: A supercharger system for a vehicle engine comprises a supercharger and a sound isolation unit at least partly surrounding the supercharger. The sound isolation unit comprises an inner layer facing the supercharger, a sound barrier layer facing away from the supercharger and a core there between. All three layers are made from polyurethane but with different densities. Furthermore, the core comprises an open cell structure for sound absorption.
    Type: Application
    Filed: August 18, 2014
    Publication date: March 5, 2015
    Inventors: Mikael HOLMSTROM, Frederik LINDEN
  • Publication number: 20150061277
    Abstract: A method of manufacturing a liner, such as a wheelhouse liner, includes the following steps: (a) providing a textile blank; (b) dispensing a liquid-impermeable polymer only on a portion of the textile blank; (c) bonding the liquid-impermeable material to the textile blank; (d) changing a shape of the textile blank to form the liner; and (e) trimming the liner. The liner includes a substrate wholly or partly made of a textile. The substrate has a first surface and a second surface opposite the first surface. The liner further includes a liquid-impermeable coat bonded to the substrate. The liquid-impermeable coat partially covers the first surface of the substrate in order to minimize liquid flow through the substrate.
    Type: Application
    Filed: August 27, 2013
    Publication date: March 5, 2015
    Applicant: GM Global Technology Operations LLC
    Inventors: Bradley Tice, David M. Connor, Wayne R. Witkop
  • Patent number: 8967331
    Abstract: This invention is directed to a multilayered sheet comprising a release paper and an inorganic refractory layer coated onto one surface of the release paper wherein the refractory layer has a dry areal weight of from 15 to 50 gsm and a residual moisture content of no greater than 10 percent by weight. The paper comprises a blend of cellulose and cotton fibers and is hydrophilic.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: March 3, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventor: Dariusz Wlodzimierz Kawka
  • Patent number: 8968621
    Abstract: Gypsum plasterboard is produced by combining calcium sulphate hemihydrate (stucco) with water to form an aqueous slurry. Uncalcined gypsum having a specific surface area below 0.3 m2/g is added to the slurry and the slurry is discharged onto a support so as to form a sheet of gypsum plasterboard.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: March 3, 2015
    Assignee: BPB Limited
    Inventors: Winfried Johannes Josef Spikermann, Kane Ian Ironside
  • Publication number: 20150041249
    Abstract: A soundproof panel connection structure including: a plurality of posts spaced apart from each other on the floor by a given distance; a plurality of soundproof panels each located between the neighboring posts and having fastening portions disposed on both end portions thereof; bending portions each extended from one side surface of each soundproof panel; soundproof materials each interposed between each fastening portion and each bending portion in such a manner as to be supportedly brought on one surface thereof into contact with one side surface of each post; and a plurality of connection joints each coupled on both ends thereof to the fastening portions disposed on both side surfaces of each post, wherein the post located at the corner portion in the plurality of posts has supports located at the outer surfaces thereof.
    Type: Application
    Filed: August 5, 2014
    Publication date: February 12, 2015
    Inventor: Byung Guk Lee
  • Patent number: 8950549
    Abstract: A sound absorbing material comprising a nonwoven fibrous acoustic insulation material and a flow resistive non-woven facing, wherein the flow resistive nonwoven facing is bonded to the insulation material and has an air flow resistance of from about 600 to about 1800 Rayls and a surface mass of from about 20 to about 150 g/m2.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: February 10, 2015
    Assignee: Zephyros, Inc.
    Inventors: Michael William Coates, Marek Kierzkowski, Philip John Gibbons
  • Patent number: 8926855
    Abstract: Building materials include a dampening layer which contains a plaster and a viscoelastic polymer, such as polyvinyl butyral. The dampening layer may also include a barium salt. Methods of making a sound dampening material include providing a plaster mixture. The mixture may include a viscoelastic polymer and/or a barium salt. The plaster mixture is combined with water and/or a viscoelastic polymer dispersion, to form a slurry. The slurry is applied to a surface and set to form a sound dampening layer.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: January 6, 2015
    Assignee: Georgia-Pacific Gypsum LLC
    Inventors: Vincent B. Thomas, Jeffrey Thomas Fields
  • Publication number: 20140371698
    Abstract: An ostomy appliance includes a sound absorbing film comprising a triblock copolymer including polystyrene blocks and vinyl-bond rich rubber mid-block, and a sound absorbing non-woven material comprising the triblock copolymer including polystyrene blocks and vinyl-bond rich rubber mid-block. The ostomy appliance has improved sound absorbing properties to insulate flatulence noise.
    Type: Application
    Filed: December 28, 2012
    Publication date: December 18, 2014
    Inventors: Moh-Ching Oliver Chang, Kimberly R. Hansford
  • Patent number: 8881864
    Abstract: An acoustic insulator for a motor vehicle is provided comprising a mass providing an acoustic barrier and a spring providing an acoustic absorber overlying the mass. The mass comprises a first acoustic mass layer underlying a second acoustic mass layer. The first acoustic mass layer is provided by a thermoplastic sheet having a thickness in a range of 0.5 mm to 1 mm. The second acoustic mass layer is provided at one or more localized areas formed in place on a backside surface of the first acoustic mass layer to increase an overall thickness of the mass at the one or more localized areas. The spring layer is formed in place on a backside of the second acoustic mass layer and the backside of the first acoustic mass layer.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: November 11, 2014
    Assignee: International Automation Components Group North America, Inc.
    Inventors: Matt Starling, John Lahl, Rose Ann Ryntz, Terrence M. McRoberts
  • Publication number: 20140292913
    Abstract: A liquid absorber that is constituted mainly by fibers, includes fusion bondable resin, and is configured to absorb liquid, includes a first surface having a largest surface area, and a second surface perpendicular to the first surface. The second surface includes a surface low in degree of fusion bond of the fusion bondable resin and a surface high in degree of fusion bond of the fusion bondable resin that has a higher degree of fusion bond of the fusion bondable resin than the surface low in degree of fusion bond, and at least a part of the surface low in degree of fusion bond absorbs the liquid.
    Type: Application
    Filed: March 24, 2014
    Publication date: October 2, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Naotaka HIGUCHI
  • Patent number: 8833514
    Abstract: The open air layer-type vibration reduction structure is provided with at least one plate-like member of which the obverse surface faces toward the open space side; and a frame spaced at an interval from the reverse surface of the plate-like member, and an air layer is formed between the plate-like member and the frame. An air-permeable ventilation portion is formed at least one of the plate-like member and the frame, such that the average value of the flow resistance on the surface of at least one of the plate-like member and the frame, which forms an air layer, is in a range greater than 0 N·s/m3 and equal to or less than 1,000 N·s/m3. The ventilation portion may be configured such that the sound pressure level generated within the air layer by applying an external force to the air layer is reduced by 3 dB or more.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: September 16, 2014
    Assignee: Nittobo Acoustic Engineering Co., Ltd.
    Inventors: Shinji Ohashi, Hiroshi Ohyama, Kazuhiro Takashima, Yuichi Miyazaki
  • Patent number: 8820476
    Abstract: The present invention relates to an assembly wall having improved sound absorption/insulation performance and an assembly structure thereof. The assembly wall includes plate members separated from each other to face each other and each forming at least one layer; stud members alternately placed on different inner surfaces of the plate members and comprising a web formed with a plurality of first perforated holes having at least one diameter; an insulation member interposed in a space defined between the plate members and the stud members; and a sheet member adjoining an outer surface of the insulation member and being formed with a plurality of second perforated holes having at least one diameter. With this structure, the assembly wall has excellent sound absorption and insulation performance over various frequency bands including a low frequency band without increasing wall thickness.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: September 2, 2014
    Assignee: LG Hausys, Ltd.
    Inventors: Jin-Woo Nam, Seong-Moon Jung, Jun-Yup Kim, Heon-Sung Kang
  • Publication number: 20140238775
    Abstract: A sound insulating material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. The content ratio of a sulfur atom calculated by a fluorescent X-ray measurement, based on mass, is 1000 ppm or less. The sound insulating material has a 50% compressive load value of 0.1 N/cm2 or more and 10 N/cm2 or less. The sound insulating material has an air permeability of 10 cm3/min/cm2 or less.
    Type: Application
    Filed: September 18, 2012
    Publication date: August 28, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Takayuki Iwase, Bunta Hirai
  • Publication number: 20140233781
    Abstract: A sound transmission, material is made of fibers entangled with each other and has a self-standing property and a high performance sound transmission property, namely the Taber stiffness is not less than 5 mN·m, the bending resistance is not less than 100 mN, the porosity is not less than 50%, and the thickness is not more than 3 mm.
    Type: Application
    Filed: August 30, 2012
    Publication date: August 21, 2014
    Applicant: TOMOEGAWA CO., LTD.
    Inventors: Fukushi Kawakami, Takayuki Sano
  • Patent number: 8807275
    Abstract: A sound absorbent barrier has a sound absorbent layer disposed between a porous first cover and a second cover. The barrier also has a waterproof sound-permeable membrane between the first cover and the sound absorbent layer. The sound absorbent layer is thus protected from damage by the first and second covers and water ingress is prevented by the sound permeable membrane. The second cover may be non-porous to reflect sound waves which have passed through the sound absorbent layer back through the sound absorbent layer. Alternatively, the second cover may be porous to enable absorption of sound from two directions.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: August 19, 2014
    Assignee: Echo Barrier Limited
    Inventors: Peter Wilson, Andrew Murphy
  • Patent number: 8807276
    Abstract: The invention concerns a multilayer composite material comprising at least one core (3) interposed between two external layers (1, 2), wherein: —the core (3) is a layer of thermoviscous fluid at room temperature, said thermoviscous fluid having a dynamic viscosity coefficient greater than 100 Pa·s at room temperature, —each external layer (1, 2) is in a material in the solid state at room temperature, each external layer having a surface mass of less than 8 kg/m2.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: August 19, 2014
    Assignee: Institut National des Sciences Appliquees de Lyon
    Inventors: Jean-Louis Guyader, Husnain Inayat Hussain
  • Publication number: 20140216847
    Abstract: A multilayer composite material is formed of an acoustic core layer and at least one outer strengthening layer. The acoustic composite material has desirable high strength and high flexural modulus properties.
    Type: Application
    Filed: December 30, 2013
    Publication date: August 7, 2014
    Applicant: OCV Intellectual Capital, LLC
    Inventors: Arthur Blinkhorn, Terry L. Cheney
  • Publication number: 20140196982
    Abstract: Sound absorbing or attenuating laminate flooring materials are provided, which are directed to be used in the production of floor covering, floor panels, furniture panels, cabinets, counter-tops and wall panels. As well, the methods for producing such products are provided. hi particular, abrasion resistant panels, with a laminated structure, created by forming an assembly which consists of laminating a heat-activated resin impregnated paper wear layer, a decorative layer with printed graphics or a wood veneer decorative layer, a medium density (MDF) or high-density (HDF) natural fiber-based core and a resin impregnated paper balancing layer. To achieve sound absorbing and/or attenuating properties, any or all paper layers may be pre coated with an additional flexible elastomeric coating, film or material prior to assembly of the panel, or the natural fiber core panel may be coated with a flexible elastomeric coating, film or material prior to assembly with the papers.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 17, 2014
    Inventors: Robert N. Clausi, Salvatore Anthony Diloreto
  • Patent number: 8770343
    Abstract: A method and apparatus comprising a composite panel and a number of structures to reduce noise radiation from the composite panel. The composite panel has a first face sheet, a second face sheet, and a core located between the first face sheet and the second face sheet. The number of structures is associated with the first face sheet. The number of structures has a mass with a configuration to reduce a speed of waves propagating in the composite panel such that noise radiating from the composite panel is reduced.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: July 8, 2014
    Assignee: The Boeing Company
    Inventors: Gopal Prasad Mathur, Cliff L. Chin
  • Patent number: 8763754
    Abstract: The invention relates to a sound insulating element for the ceiling area of a building, in particular for rooms subject to increased humidity such as underground parking, and basement rooms, which sound insulating element consists of an insulation element (2) made from mineral fibers bound with a binding agent and having two mutually spaced large surfaces extending parallel to each other, and of a coating (5) from a hydraulically and/or chemically set mass, wherein the coating (5) is connected to the insulation element (2), whereby the coating (5) to be oriented towards the room includes an array of openings (7) forming a regular hole pattern and penetrating the coating (5) as far as to the insulation element (2). The invention moreover relates to a process for producing said sound insulating element.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: July 1, 2014
    Assignee: Rockwool International A/S
    Inventor: Elisabeth Hildegard Billes-Pieper
  • Publication number: 20140175320
    Abstract: Building materials include a dampening layer which contains a plaster and a viscoelastic polymer, such as polyvinyl butyral. The dampening layer may also include a barium salt. Methods of making a sound dampening material include providing a plaster mixture. The mixture may include a viscoelastic polymer and/or a barium salt. The plaster mixture is combined with water and/or a viscoelastic polymer dispersion, to form a slurry. The slurry is applied to a surface and set to form a sound dampening layer.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Applicant: Georgia-Pacific Gypsum LLC
    Inventors: Vincent B. Thomas, Jeffrey Thomas Fields
  • Publication number: 20140174849
    Abstract: The invention relates to the use of expandable graphite having a starting temperature greater than or equal to 150° C. for increasing the sound absorption within a sound absorption foam material foamed with the expandable graphite, wherein the foam material is a polyurethane foam material. An associated sound absorber having a sound absorption foam material made of a polyurethane integral foam or polyurethane flexible foam, which is open-cell at least in the core region thereof, has a density greater than or equal to 120 g/l and a content of at least 5 wt % of expandable graphite to 100 parts by weight of isocyanate-reactive components, in particular polyol. The sound absorber can preferably be used for sound absorption in engine compartments of motor vehicles. The sound absorber can also be used very advantageously inside relatively complex components and in the design-dependent cavities of machines.
    Type: Application
    Filed: July 13, 2012
    Publication date: June 26, 2014
    Applicant: OTTO BOCK SCHAUMSYSTEME GMBH
    Inventor: Peter Gansen
  • Publication number: 20140151152
    Abstract: A building material configured to enhance sound attenuation and reduction in dB across a walled partition, the building material comprising a facing membrane, a core matrix disposed about the facing membrane, the core matrix comprising a plurality of microparticles and a binder solution configured to support the microparticles, the building material comprising at least a substantially exposed face, wherein a side of the core matrix is at least partially exposed to increase sound attenuation by reducing reflections from sound waves impinging on the building material as compared to a control building material lacking an exposed face. Two building materials may be used in conjunction with one another about a building structure, such as a stud wall, to create and define a sound trap that functions to reduce sound transmission across the partition formed by the stud wall and building materials.
    Type: Application
    Filed: May 20, 2013
    Publication date: June 5, 2014
    Inventors: Michael D. Kipp, Dilworth L. Pugh, Michael D. Ridges, William t. McCarvill
  • Publication number: 20140151151
    Abstract: An acoustic structure comprising comprises a layer of material having a first Young's modulus called the intrinsic modulus and a first density called the intrinsic density, characterized in that the layer comprises at least one first zone having said first Young's modulus and said first density and at least one second zone buried in the volume of said layer of material and having a second Young's modulus and/or a second density obtained by implanting and/or by diffusing atoms into the volume of said layer.
    Type: Application
    Filed: October 6, 2011
    Publication date: June 5, 2014
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Alexandre Reinhardt
  • Patent number: 8739927
    Abstract: Disclosed is a gypsum panel having outstanding sound-absorbing properties whereby it is possible to impart various aesthetic effects while also having outstanding sound-absorbing effects. The gypsum panel having outstanding sound-absorbing properties according to the present invention comprises: a perforated gypsum body having a plurality of holes, and a sound-absorbing cover layer which is attached to one side of the gypsum body and which has through-holes of a smaller size than the holes, wherein the mean diameter of the through-holes is between 10 and 40 ?m.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: June 3, 2014
    Assignee: LG Hausys, Ltd.
    Inventors: Gil-Ho Kang, Heon-Sung Kang, Seong-Moon Jung
  • Patent number: 8739924
    Abstract: An apparatus and method is disclosed for an improved acoustic panel comprising a sound absorbing member defined by a first and second face surface and a plurality of peripheral edges. A sound blocking member is defined by a first and second face surface and a plurality of peripheral edge. The first face surface of the sound blocking member is secured relative to the second face surface of the sound absorbing member for blocking the transmission of sound therethrough. In another embodiment, the first face surface of the sound blocking member is spaced relative to the second face surface of the sound absorbing member for decoupling the sound blocking member from the sound absorbing member.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: June 3, 2014
    Assignee: LJ Avalon LLC
    Inventor: Lahnie Johnson
  • Patent number: 8739926
    Abstract: A sound-transmitting membrane (1) is provided that allows passage of sounds and prevents passage of foreign matters, the sound-transmitting membrane (1) including a supporting member (12) and a resin porous membrane (11) layered on the supporting member (12) and containing polytetrafluoroethylene as a main component. The supporting member (12) is a nonwoven fabric containing an elastomer. Since the supporting member (12) is a nonwoven fabric containing an elastomer, the insertion loss of the sound-transmitting membrane can be reduced for sounds of 3000 Hz.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: June 3, 2014
    Assignee: Nitto Denko Corporation
    Inventor: Masaaki Mori
  • Publication number: 20140144723
    Abstract: Disclosed is a highly heat resistant sound absorbing material for a vehicle capable of maintaining a shape even at high temperatures of about 200° C. or above and which satisfies UL 94V-0 flame retardancy. More particularly, the a highly heat resistant sound absorbing material includes a fiber material having a limiting oxygen index (LOI) of at least about 25% and capable of maintaining a shape at a temperature of about 200° C. or above, and a thermosetting binder resin capable of maintaining a shape at a temperature of about 200° C., wherein the fiber material and thermosetting binder resin are provided at a specific proportion.
    Type: Application
    Filed: April 11, 2013
    Publication date: May 29, 2014
    Applicants: HYUNDAI MOTOR COMPANY, NVH KOREA, INC., KIA MOTORS CORPORATION
    Inventors: Keun Young Kim, Bong Hyun Park, Won Jin Seo, Youn Jin Cho, Ki Dong Lee, Su Nam Lee