Sound Absorbing Panels Patents (Class 181/284)
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Patent number: 8162104Abstract: A device for reducing noise pollution includes an acoustic panel (1) and at least one member (3) for elastically holding the panel (1). This holding member (3) includes: first and second mounting elements (8) for installing the same between a support (2) and panel (1), a spring portion (6) provided between the first and second mounting elements, a tab (7) having one end connected to the second mounting element (5) and bearing, at a distance from the end, the first mounting element (8) so that movement (D) of the acoustic panel (1) perpendicularly to the main faces (14A, 14B) thereof is permitted by an elastic deformation of the spring portion (6) in the tilting direction of the tab (7) relative to the second mounting element (5).Type: GrantFiled: July 7, 2008Date of Patent: April 24, 2012Assignee: AE2SInventors: Bernard Bastion, Edmond Benarrous
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Patent number: 8151933Abstract: A vehicle flooring system with improved thermal and acoustic properties is provided that does not unreasonably increase the thickness and weight of the flooring system and does not break down due to repeated exposure to high temperatures and wide ranging temperature fluctuations. Various materials and construction methods are combined to provide a system with optimized thermal conductivity, having varied density ratios of materials to meet particular sound transmission loss profiles. These materials include a wide range of foam and other materials.Type: GrantFiled: May 12, 2010Date of Patent: April 10, 2012Assignee: CVG Management CorporationInventors: Philip G. May, Donald L. Fishel
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Patent number: 8133354Abstract: A composition and process suitable for making acoustic tiles are disclosed. Certain embodiments of the composition comprise: perlite; inorganic material selected from the group consisting of calcium sulfate, calcium carbonate, clay and mixtures thereof; a binder selected from the group consisting of starch, a combination of starch and cellulosic fibers, latex, kraft paper gel and mixtures thereof; optionally mineral wool; optionally gypsum; and cellulosic fiber, wherein at least a portion of the cellulosic fiber and at least a portion of the inorganic material are pulp and paper processing waste comprising cellulosic fiber, clay and calcium carbonate. Certain embodiments of the process comprise: forming an aqueous slurry; continuously flowing slurry onto a moving foraminous wire to form a cake; dewatering the cake to form a base mat; and drying the base mat.Type: GrantFiled: January 4, 2008Date of Patent: March 13, 2012Assignee: USG Interiors, LLC.Inventor: Mirza A. Baig
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Patent number: 8118177Abstract: A product including a web and a method of manufacturing such a product. The product may be for use as an industrial absorbent or a thermal or acoustic insulator and includes a web including scrap and/or recycled cellulose, the cellulose being selected from a source of post-industrial cellulose and/or a source of post-consumer cellulose, the cellulose being treated with a fire-retardant, the cellulose being dry before web formation, and opened, individuated bicomponent fibers mixed with the cellulose, at least some of the bicomponent fibers being thermally bonded to at least some of the cellulose. The method may include shredding the cellulose, declumping and sizing the cellulose, metering the cellulose into a spray booth, applying a fire retardant to the cellulose in the spray booth, if the fire retardant is a liquid, drying the cellulose, adding bicomponent fibers to the cellulose, forming a web, and heating the web in an oven.Type: GrantFiled: December 26, 2008Date of Patent: February 21, 2012Assignee: Sellars Absorbent Materials, Inc.Inventors: David C. Drapela, William R. Sellars, Thomas C. Shutt, John C. Sellars
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Patent number: 8109361Abstract: It is an object of the present invention to provide a solid-borne sound reducing structure which is able to reduce solid-borne sound with a simple configuration, highly durable, and being less degraded. There is provided a solid-borne sound reducing structure (100) in which a surface plate part (1) including a gas ventilating part (1a) which allows gas to pass through along a thickness direction is disposed by means of an outer peripheral wall part (2) on a structure (200) that radiates noise while vibrating, so as to at least partially cover a surface (200a) of the structure (200). The surface plate part (1) is supported by the outer peripheral wall part (2) so as to be integrally vibrated with the surface (200a) of the structure (200). In addition, the outer peripheral wall part (2) supports the surface plate part (1) in such a manner that an internal gas chamber is formed between the surface (200a) of the structure (200) and the surface plate part (1).Type: GrantFiled: July 19, 2007Date of Patent: February 7, 2012Assignee: Kobe Steel, Ltd.Inventors: Kazuki Tsugihashi, Toshimitsu Tanaka
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Publication number: 20120024624Abstract: An acoustic panel, designed to emit, receive, or absorb sound, includes two walls (12, 14) that are arranged opposite one another and delimiting an inner space (16), whereby the inner space (16) includes at least 50% air and is equipped with at least one cavity (16), at least one element (20) that can become deformed, elements (22) for exerting a force on the at least one deformation element (20), and elements (24) for connecting the at least one element to a surface (26) of one of the walls (12, 14), with the at least one deformation element (20), connecting elements (24) and surface (26) delimiting a chamber.Type: ApplicationFiled: March 29, 2010Publication date: February 2, 2012Applicant: ACTIVACOUSTICInventor: Gilles Reigner
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Patent number: 8104573Abstract: An insulating isolator for a heat shield has a unitary first land, a bead portion, a second land and a half bead. The first land defines a fastener aperture. In one case, a plurality of circumferentially spaced apart petals is formed in the isolator. The petals may be separated by gaps. In another case, a set of circumferentially spaced apart apertures are formed in the isolator. The heat shield may have at least two disk apertures. Two metallic disks are located in the area of at least one of the two disk apertures. The metallic disks are connected to each other, have aligned fastener openings that are smaller than the disk apertures and they are smaller than the metallic sheet. One of the metallic disks may have a bead.Type: GrantFiled: September 23, 2010Date of Patent: January 31, 2012Assignee: Dana Automotive Systems Group, LLCInventors: Ernest Oxenknecht, Franz Schweiggart, Oliver Schimmele, Giacomo Giaimi
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Patent number: 8100226Abstract: An acoustical building panel and method of manufacturing it are disclosed. Embodiments of the panel include a porous nonwoven scrim, a coating deposited on the scrim, a base mat, and an adhesive deposited on either the base mat or the scrim in a discrete form such as in droplets. Embodiments of the method of manufacture include steps of perforating the base mat, applying the adhesive to the base mat in the discrete form, laminating the scrim onto the base mat, and applying the coating to the scrim surface.Type: GrantFiled: December 13, 2010Date of Patent: January 24, 2012Assignee: USG Interiors, Inc.Inventors: Bangji Cao, Gregory Palm, Weixin D. Song
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Patent number: 8091684Abstract: A low mass acoustically enhanced floor carpet system for vehicles. In a first embodiment, the carpet assembly comprising a face layer and an opposite lower fiber mat. The carpet assembly further including a primary backing if the face layer is tufted, a back coating layer, an upper fiber mat, and a perforated film layer all in between the face layer and the lower fiber mat. The perforated film layer providing for enhanced sound absorption. In an alternate embodiment, the carpet assembly comprising a face layer, an insulator pad opposite the face layer; a back coating, a perforated film layer, and an insulator pad all between the face layer and the insulator pad.Type: GrantFiled: March 14, 2008Date of Patent: January 10, 2012Inventor: Duane M. Juriga
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Patent number: 8091685Abstract: A sound absorbing structure is constituted of a vibration plate and a rear air layer and is installed in a luggage compartment or trunk which is separated from a cabin in a vehicle. Sound waves entering into the luggage compartment drive the vibration plate to vibrate so that acoustic energy is converted into mechanical energy and is consumed by way of vibration of the vibration plate. By appropriately setting parameters and dimensions, the sound absorbing structure efficiently absorbs low-frequency sound such as road noise occurring due to friction of wheels of the vehicle traveling on a road.Type: GrantFiled: October 5, 2009Date of Patent: January 10, 2012Assignee: Yamaha CorporationInventors: Yasutaka Nakamura, Rento Tanase, Atsushi Yoshida, Masaru Matsushita
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Publication number: 20110315473Abstract: A panel assembly for use in any number of different applications, including a variety of vehicle applications, that reduces noise or vibrations, provides thermal insulation, and/or improves structural integrity. According to an exemplary embodiment, the panel assembly includes a main panel made from a metal, one or more sound damping patches also made from a metal, and an adhesive layer that joins the patches to the main panel in a constrained layer construction. The sound damping patches may include one or more forming features, which are designed to improve the formability of the panel assembly without significantly impairing its sound damping characteristics. There are different types of forming features, including internal forming features (e.g., openings, holes, slits, slots, etc.) located within the interior of the patch and external forming features (e.g., projections, fingers, recesses, waveforms, etc.) located along the perimeter of the patch.Type: ApplicationFiled: June 10, 2011Publication date: December 29, 2011Applicant: SHILOH INDUSTRIES, INC.Inventors: Stephen A. Fetsko, James F. Keys, Jonathan W. Fisk, Paul A. Andel, Kris Morris
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Publication number: 20110289857Abstract: An inflatable, noise attenuating panel or barrier, comprised of an inflatable air chamber coated with (wrapped in or attached thereto) an acoustic barrier material, with which to construct a variety of structures that benefit from a degree of soundproofing.Type: ApplicationFiled: July 11, 2011Publication date: December 1, 2011Inventor: James G. Pilaar
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Patent number: 8061475Abstract: The present invention relates to a soundproof cover containing: a sound-absorbing material disposed facing to a sound source; a soft sound-insulating layer laminated on the sound-absorbing material and having an air permeability measured according to JIS L 1018 (1999) of 10 cc/cm2·sec or less; and a soft cover forming an air layer with the soft sound-insulating layer and having a Young's modulus measured according to JIS K 7127 (1999) of 0.2 to 1.5 GPa, in which the air layer is hermetically sealed.Type: GrantFiled: September 17, 2010Date of Patent: November 22, 2011Assignee: Nichias CorporationInventors: Tadashi Mori, Motonori Kondoh, Kaname Arimizu, Takahiro Niwa, Masaki Yoshihara
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Publication number: 20110277911Abstract: An uncured acoustic absorbing member for cavity sealing comprises a thermally inert carrier (8, 28) and a thermally expandable material (6, 26) applied to the carrier (8, 28). The carrier (8, 28) contains openings (3) which become covered when the thermally expandable material (6, 26) is expanded to seal the cavity. The thermally expandable material (6, 26) may be in the form of substantially discontinuous segments (25) having an area in the range of 0.25 to 400 mm2. The substantially discontinuous segments (25) provide a highly uniform expansion of the material when it is thermally expanded. The acoustic absorbing members are particularly useful for sealing automotive cavities to provide acoustical abatement and to prevent the entry of fluids into the cavity.Type: ApplicationFiled: November 26, 2008Publication date: November 17, 2011Inventors: Mark P. Allen, Tao Chen, Jay M. Tudor, Matthew J. Turpin, Thomas Mettler, Bin Chen, Xiaochun Liu, Xiaojun Yang
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Publication number: 20110274863Abstract: A thermal insulating tape is configured for fire protection for use in aircraft construction. The insulating tape has a multilayer construction including a flexible carrier tape providing protection against burn-through, the carrier tape being formed as a thermally conductive metal tape. An adhesive film is disposed on a first side of the carrier tape and is configured for partial fixation or complete wrapping of the insulating tape on a protected component. A flexible intumescent coating is disposed on a second side of the carrier tape.Type: ApplicationFiled: April 19, 2011Publication date: November 10, 2011Applicant: AIRBUS OPERATIONS GMBHInventors: Heinz-Peter Busch, Berend Schoke
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Publication number: 20110266089Abstract: An acoustic reflector is described comprising a shell around a core, in which portions of the shell are capable of transmitting acoustic waves incident on the shell into the core to be focused and reflected from an area of the shell located opposite to the area of incidence of the acoustic waves to provide a reflected acoustic signal output from the reflector. Incident acoustic radiation will be differentially reflected depending on the portion of the reflector on which the incident acoustic radiation impinges.Type: ApplicationFiled: July 14, 2011Publication date: November 3, 2011Inventors: Carl Peter Tiltman, Andrew Malcolm Tulloch
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Publication number: 20110259667Abstract: Duct sound damper for deliberate reduction of sound waves for a flow machine, particularly for a compressor, with a housing having at least one horizontally extending acoustically reflective back wall and at least one front cover plate. At least one flow channel connected together through inlet opening and outlet opening is enclosed by at least one damper member reducing the sound. The damper member includes horizontal axial stringers, circumferential stringers, the front cover plate, at least one sound-insulating metal element extending horizontal to the flow-guiding cross section, and the acoustically reflective back wall.Type: ApplicationFiled: April 22, 2011Publication date: October 27, 2011Applicant: MAN Diesel & Turbo SEInventor: Richard BÜSSOW
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Patent number: 8028803Abstract: A lightweight cast article that is made by the method of the present invention. A foamed acoustical product is prepared by blending a starch with cold water, then heating the starch/water blend to form a starch gel. Mineral wool is added to the starch gel to form a pulp and the pulp is wet-mixed until wool nodules are formed. The pulp is then combined with a surfactant and an amount of foam water. The foaming agent is selected from the group consisting of a linear sodium dodecylbenzene sulfonate, a cocamidopropyl betaine, a cocamidopropyl hydroxysultaine, their salts and mixtures thereof. Mixing of the foaming agent and pulp continues to form a foamed pulp. The foamed pulp is cast into a mold and allowing the foamed pulp to dry forming a foamed product. The foamed product is removed from the mold.Type: GrantFiled: April 13, 2010Date of Patent: October 4, 2011Assignee: USG Interiors, Inc.Inventor: Mark Englert
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Patent number: 8028802Abstract: A method and system for an acoustic panel system are provided. The system includes a plurality of acoustic panel segments aligned circumferentially about an inner diameter of a fan containment case wherein each segment includes a radially inner surface defining a portion of a fluid duct, a radially outer surface defining a gap between the fan containment case and the acoustic panel segment, and an aft end lip configured to be inserted into a mating groove in the fan containment case. The system also includes at least one damping bumper coupled to the radially outer surface wherein the bumper extends from the radially outer surface to the fan containment case and comprises an energy absorbing elastomeric material configured to facilitate dissipating a forced response of a vibratory stimulus.Type: GrantFiled: June 30, 2008Date of Patent: October 4, 2011Assignee: General Electric CompanyInventors: Anthony J. Durchholz, Carlos M. Figueroa, Matthew F. Kluesener
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Patent number: 8028801Abstract: The present invention provides a soundproof cover comprising: a sound-absorbing material having air permeability; and a skin material impregnated with a viscoelastic material and having air permeability, wherein the skin material is provided on a surface of the sound-absorbing material opposite to a sound source, and wherein the soundproof cover has a three-dimensional shape corresponding to an outer shape of the sound source.Type: GrantFiled: March 28, 2008Date of Patent: October 4, 2011Assignee: Nichias CorporationInventors: Takahiro Niwa, Michihiro Inagaki, Akinao Hiraoka, Motonori Kondoh, Tadashi Mori
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Patent number: 8028800Abstract: An acoustic damping composition includes a binder resin including an addition polymer having a carboxylic functional group and a urethane component. The acoustic damping composition has a Mode 1 Damping Parameter of at least 0.45.Type: GrantFiled: April 9, 2010Date of Patent: October 4, 2011Assignee: Saint-Gobain Performance Plastics Rencol LimitedInventor: Brian Ravnaas
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Patent number: 8025124Abstract: A passive distributed vibration absorber that utilizes multiple discrete mass elements and a viscoelastic layer and that effectively attenuates vibration in modally dense structures excited by a broadband input noise excitation. and is tunable to multiple natural frequencies in such modally dense vibrating structures including low frequencies.Type: GrantFiled: October 31, 2008Date of Patent: September 27, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Natalia V Levit, Mark Allan Lamontia, David M Mellen, Joseph A King, Jr., Kathleen Kondylas, Christopher R Fuller
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Publication number: 20110226546Abstract: A device for reducing noise pollution includes an acoustic panel (1) and at least one member (3) for elastically holding the panel (1). This holding member (3) includes: first and second mounting elements (8) for installing the same between a support (2) and panel (1), a spring portion (6) provided between the first and second mounting elements, a tab (7) having one end connected to the second mounting element (5) and bearing, at a distance from the end, the first mounting element (8) so that movement (D) of the acoustic panel (1) perpendicularly to the main faces (14A, 14B) thereof is permitted by an elastic deformation of the spring portion (6) in the tilting direction of the tab (7) relative to the second mounting element (5).Type: ApplicationFiled: July 7, 2008Publication date: September 22, 2011Applicant: AE2SInventors: Bernard Bastion, Edmond Benarrous
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Patent number: 8011472Abstract: A sound absorbing structure is constituted of a housing having a hollow portion and an opening and a vibration member composed of a board or diaphragm. The vibration member is a square-shaped material having elasticity composed of a synthetic resin and is bonded to the opening of the housing, thus forming an air layer closed inside the sound absorbing structure by the housing and the vibration member. In the sound absorbing structure, when the lateral/longitudinal dimensions of the air layer and characteristics of the vibration member (e.g. a Young's modulus, thickness, and Poisson's ratio) are set such that the fundamental frequency of a vibration occurring in a bending system falls within 5% and 65% of the resonance frequency of a spring-mass system, a vibration mode having a large amplitude occurs in a frequency band lower than the resonance frequency of the spring-mass system, this improving the sound absorption coefficient.Type: GrantFiled: January 28, 2009Date of Patent: September 6, 2011Assignee: Yamaha CorporationInventors: Rento Tanase, Yasutaka Nakamura, Atsushi Yoshida, Masaru Matsushita, Kunio Hiyama
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Patent number: 7997384Abstract: A multilayer board for reducing solid-borne sound radiation with improved mechanical stability when subjected to a load, comprising a first cover layer, a second cover layer, and at least one core layer, wherein the at least one core layer is arranged between the first and the second cover layer, and wherein the at least one core layer comprises at least one first sloped slot.Type: GrantFiled: May 7, 2008Date of Patent: August 16, 2011Assignee: Airbus Operations GmbHInventor: Klaus Boock
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Patent number: 7992678Abstract: An inflatable, noise attenuating panel or barrier, comprised of an inflatable air chamber coated with (wrapped in or attached thereto) an acoustic barrier material, with which to construct a variety of structures that benefit from a degree of soundproofing.Type: GrantFiled: May 11, 2006Date of Patent: August 9, 2011Inventor: James G. Pilaar
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Publication number: 20110174571Abstract: The invention relates to a composite sandwich panel (1) comprising at least a web (2) provided between an inner skin (3) and an outer skin (4), each skin being made of a composite material from a plurality of fibrous plies (5, 6, 7, 8), characterised in that a portion of the plies of the inner skin and/or of the outer skin each extends at least partially through the web at an uninterrupted area thereof in order to form together a through-reinforcement (9) extending from the inner skin to the outer skin of the composite sandwich panel. The invention further relates to an aircraft element including such a composite sandwich panel.Type: ApplicationFiled: August 21, 2009Publication date: July 21, 2011Applicant: SOCIETE LORRAINE DE CONSTRUCTION AERONAUTIQUEInventors: Jean-Luc Pacary, Paulo Francisco
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Publication number: 20110162909Abstract: Board of natural or composed wood that improves the thermo-acoustic and vibrational properties of the original raw material, and it is used in various ways as constructive part of internal and external finishing (doors, windows, panels, party wall, supports, etc. . . . ). The wood boards are made by two or more incisions along the longitudinal direction, continuous and/or discontinuous, belonging to planes which are parallel and/or inclined to each other. The single incision lies on a plane which is parallel and/or inclined compared to the different surfaces of the bar. In the created cracks, suitable acoustic insulating, soundproof or sound-blocking materials are inserted that improve further the final soundproofing and even the thermal insulation.Type: ApplicationFiled: June 4, 2009Publication date: July 7, 2011Inventor: Giovanni Romanzi
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Patent number: 7972708Abstract: A heat shield for shielding an object against heat and/or noise has at least one metal layer having a first and a second surface, beyond at least one of which a plurality of embossments projects. At least a part of the embossments differ from the remaining embossments in their size.Type: GrantFiled: July 25, 2008Date of Patent: July 5, 2011Assignee: Dana Automotive Systems Group, LLCInventors: Franz Schweiggart, Thomas Dietrich-Radt, Alexander Gloeggler
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Patent number: 7971684Abstract: A panel for acoustic treatment connected to a surface of an aircraft, includes—from the outside to the inside—an acoustically resistive porous layer, at least one alveolar structure, and a reflective or impermeable layer, whereby the acoustically resistive porous layer includes—at the outside surface that can be in contact with the aerodynamic flows—one sheet or piece of sheet metal including open zones (14) that allow sound waves to pass and filled zones (16) that do not allow sound waves to pass, characterized in that the sheet or piece of sheet metal of the acoustically resistive layer includes sets of microperforations (18), whereby each set of microperforations forms an open zone (14), the sets of microperforations being separated from one another by at least one series of bands separated by filled zones (16).Type: GrantFiled: February 19, 2008Date of Patent: July 5, 2011Assignee: Airbus Operations SASInventors: Fabrice Gantie, Bernard Duprieu, Valerie Frustie, Alain Porte, Thomas Gilles, Jacques Lalane
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Publication number: 20110147115Abstract: A device has at least one region to be damped for the purpose of noise reduction. The at least one region may, in particular, be a wall region, for instance of an electrical device housing, and it is covered at least partially by at least one vacuum panel. In the noise reduction method, a vacuum panel is pulled by vacuum pressure against the region to be damped, so that a hollow space under vacuum pressure is formed between the vacuum panel and a housing.Type: ApplicationFiled: August 19, 2008Publication date: June 23, 2011Applicant: SIEMENS AKTIENGESELLSCHAFTInventor: Michael Ertl
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Patent number: 7954596Abstract: The invention relates to a multilayered acoustically and thermally effective insulation having a defined layer structure, especially for internal combustion engines of motor vehicles.Type: GrantFiled: May 31, 2007Date of Patent: June 7, 2011Assignee: Entwicklungsgesellschaft fur Akustik (EfA) mit beschrankter HaftungInventors: Volkmar Schulze, Hans-Peter Keller, Volker Kursch
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Publication number: 20110123793Abstract: An article for insulation (1, 101) for use in the building sector or for constructions, comprising wool (2, 3) and a stiffening material, specifically magnesium hydroxide (9), distributed within the wool (2, 3). Specifically, said article for insulation is panel-shaped (1, 101). Preferably, said wool (2, 3) is sheep wool. A method for production of an article for insulation (1, 101) for use in the building sector or for constructions, wherein said article for insulation (1, 101) is obtained by combination of wool (2,3) and a stiffening material, specifically magnesium hydroxide (8, 9).Type: ApplicationFiled: May 8, 2009Publication date: May 26, 2011Inventor: Walter Tasser
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Publication number: 20110111198Abstract: A thermal insulation product based on mineral wool, characterized in that the fibers have a micronaire of less than 10 l/min, preferably less than 7 l/min and especially between 3 and 6 l/min, and in that the material has a thermal conductivity of less than 31 mW/m·K, especially less than 30 mW/m·K. The parameters for obtaining this product are in particular the pressure of the burner, the rotation speed of the fiberizing spinner and the daily fiber output per spinner orifice.Type: ApplicationFiled: February 27, 2009Publication date: May 12, 2011Applicant: SAINT-GOBAIN ISOVERInventors: Arnaud Letourmy, Eric Mangematin, Patrice Martins
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Patent number: 7921960Abstract: The present invention is an acoustic cabinet for the storage of musical instruments. Acoustic cabinet can have a storage portion having a plurality of individual storage units contained therein. One or more grill doors can cover the open end of acoustic cabinet. The size, shape, and arrangement of grill bars of door can be configured to reduce the effect of resonance. Rear panel of acoustic cabinet can include one or more sound-absorbing panels that absorb sound as it passes through acoustic cabinet. A protective backing can also be disposed between sound-absorbing panels and individual storage spaces to protect the panels from damage when instruments and other objects are inserted into the storage spaces. A combination of a grill door and sound-absorbing panels can allow acoustic cabinet to have a net-absorptive effect on a rehearsal room. One or more acoustic cabinets can be strategically positioned throughout a rehearsal room for optimal acoustic performance.Type: GrantFiled: July 26, 2007Date of Patent: April 12, 2011Assignee: Wenger CorporationInventors: Kenneth E. Jacobson, Peter F. Menzel, Rebecca S. Broton, Mark R. Friedrichs, Ronald R. Freiheit
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Publication number: 20110078844Abstract: An apparatus comprising: a mount plate and at least one noise reduction element connected the mount plate. An article of head wear comprising: a shell having an upper portion and a lower open portion, at least one aperture located near the lower portion, and a noise reduction plate obstructing the at least one aperture. An article of head wear comprising: a shell having an upper portion and a lower portion, and a noise reduction element connected to the shell. A noise reduction element comprising: a frame having a framework, and a soundproofing element covering the framework. An apparatus comprising: a mount plate, and at least one aperture in the mount plate, wherein the aperture is formed to accommodate a noise reduction element.Type: ApplicationFiled: November 2, 2009Publication date: April 7, 2011Inventor: ISAAC SAYO DANIEL
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Patent number: 7918313Abstract: An improved acoustically and thermally insulating composite material suitable for use in structures such as buildings, appliances, and the interior passenger compartments and exterior components of automotive vehicles, comprising at least one airlaid fibrous layer of controlled density and composition and incorporating suitable binding agents and additives as needed to meet expectations for noise abatement, fire, and mildew resistance. Separately, an airlaid structure which provides a reduced, controlled airflow therethrough useful for acoustic insulation is provided, and which includes a woven or nonwoven scrim.Type: GrantFiled: March 31, 2006Date of Patent: April 5, 2011Assignee: Buckeye Technologies Inc.Inventors: James R. Gross, Jeffrey S. Hurley, Brian E. Boehmer, Ronald Timothy Moose
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Publication number: 20110067348Abstract: The invention includes a corrugated decking flooring system. The corrugated decking flooring system can include a corrugated deck having at least two flutes and a trough between the flutes. A sound insulation layer generally conformal with both the flutes and the troughs of the corrugated deck can be provided. An underlayment layer can be provided over the sound insulation layer.Type: ApplicationFiled: November 29, 2010Publication date: March 24, 2011Applicants: MAXXON CORPORATION, COLBOND INC.Inventors: Patrick Henry Giles, Clarence Curtis McCorsley, III
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Publication number: 20110067952Abstract: An insulating isolator for a heat shield has a unitary first land, a bead portion, a second land and a half bead. The first land defines a fastener aperture. In one case, a plurality of circumferentially spaced apart petals is formed in the isolator. The petals may be separated by gaps. In another case, a set of circumferentially spaced apart apertures are formed in the isolator. The heat shield may have at least two disk apertures. Two metallic disks are located in the area of at least one of the two disk apertures. The metallic disks are connected to each other, have aligned fastener openings that are smaller than the disk apertures and they are smaller than the metallic sheet. One of the metallic disks may have a bead.Type: ApplicationFiled: September 23, 2010Publication date: March 24, 2011Inventors: Ernest Oxenknecht, Franz Schweiggart, Oliver Schimmele, Giacomo Giaimi
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Publication number: 20110067951Abstract: The invention pertains to an insulation structure for thermally and acoustically insulating an aircraft that features at least one heavy layer, wherein the insulation structure according to the invention is characterized in that the insulation structure comprises an additional absorption layer, in that the heavy layer is perforated at least in certain areas, and in that the perforated area ratio of the heavy layer is adapted in such a way that the heavy layer is essentially transparent to sound for frequencies below a double-wall frequency of the insulation structure. This makes it possible to dampen sound with low frequencies below the double-wall frequency as effectively as possible.Type: ApplicationFiled: July 20, 2009Publication date: March 24, 2011Applicant: AIRBUS OPERATIONS GMBHInventors: Rainer Müller, Benjamin Grenzing, Christian Thomas
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Patent number: 7909136Abstract: A soundproof assembly having front and rear panels with one or both of the front and rear panels having a laminar structure. In one embodiment the front and rear panels are spaced apart by a spacer structure and a covering structure is attached around the periphery to provide an enclosed air space between the front and rear panels. In another embodiment the front and rear panels are affixed to each other. In another embodiment front and rear panels are separated by an interior panel.Type: GrantFiled: November 24, 2004Date of Patent: March 22, 2011Assignee: Serious Materials, Inc.Inventors: Kevin J. Surace, Matthew V. Golden, Brandon D. Tinianov
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Publication number: 20110042163Abstract: A finishing compound having acoustic properties and including iii percentage by weight relative to the total weight of the product, at least 10 to 70% of water; 0.1 to 5% of a foaming agent; 0.1 to 5% of a thickening agent; 35 to 70% of a monogranular filler having a size greater than or equal to 100 ?m and excluding fine fillers; 0.1 to 8% of synthetic or animal fibres; 0.5 to 35% of binder.Type: ApplicationFiled: April 21, 2009Publication date: February 24, 2011Applicant: Lafarge Gypsum InternationalInventors: Florence Serre, Rita Faddoul, Jean-Michel Faure, Claude Stock
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Patent number: 7883763Abstract: A laminated structure appropriate for use in constructing walls, floors, ceilings or doors, has a selected area and in one embodiment comprises two external layers of one or more materials such as, but not limited to, gypsum, at least one internal constraining layer having less than said selected area, and two or more internal layers of a viscoelastic glue separated by said at least one internal constraining layer, wherein each of said layers of viscoelastic glue is patterned to cover a selected percentage, but not all, of said area of said laminated structure thereby to allow moisture to pass through said structure.Type: GrantFiled: April 12, 2007Date of Patent: February 8, 2011Assignee: Serious Materials, Inc.Inventor: Brandon Tinianov
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Patent number: 7874402Abstract: According to one aspect of the present invention there is provided an acoustic laminate including: a first layer of viscoelastic acoustic barrier material; a sound absorbing/decoupling batt affixed to the first layer of viscoelastic acoustic barrier material, the batt at rest defining a batt plane; the batt including a plurality of batt fibers; the batt further including retaining fibers, wherein the batt fibers and/or retaining fibers are disposed perpendicular to the batt plane and having end portions thereof disposed at a batt surface, the end portions affixed to the viscoelastic barrier material so that either the first layer of viscoelastic acoustic barrier material or the sound absorbing/decoupling batt itself may be retained in spaced relation from a mounting surface when the laminate is so mounted, the retention being achieved in any orientation by bearing a mass load of the batt or first layer of viscoelastic material along the axis of the affixed batt fibers and/or retaining fibers.Type: GrantFiled: April 11, 2005Date of Patent: January 25, 2011Inventors: Philippe Pierre Marie Joseph Doneux, Bela Takacs
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Publication number: 20100314195Abstract: The present invention provides a tunable sound absorption facing which includes a cellulosic web and a nonwoven web entangled together. The facing has a controllable air flow resistance.Type: ApplicationFiled: June 11, 2010Publication date: December 16, 2010Inventors: Richard James Bliton, Samuel Mark Gillette, Troy Raymond Buechler
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Publication number: 20100300801Abstract: The described and claimed soundproofing material is planar and has an inhomogeneous structure. It consists of a textile or mesh having relatively thick, adjacent longitudinal components and relatively thin components running in the transverse direction at a spacing from one another. Longitudinal microslits are formed between the longitudinal components by the distribution of the thin transverse components. The width of the microslits amounts to 0.01 and 0.4 mm, and the thickness of the longitudinal components amounts to at least five to ten times that of the microslits.Type: ApplicationFiled: May 27, 2010Publication date: December 2, 2010Applicant: Akustik & Innovation GmbHInventor: Marco Maeder
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Publication number: 20100300024Abstract: An insulating plate/studded plate with moisture absorbing/capillary absorbent properties is described, where the plate comprises a layer of a waterproof material such as a plastic material whereon an absorbing material, such as a felt material is adhered.Type: ApplicationFiled: December 5, 2008Publication date: December 2, 2010Inventor: Svein Julton
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Patent number: 7837008Abstract: A capsule contains fluid and a solid inertial mass that is free to move within the capsule. The capsule is embedded in a foam panel. A plurality of such foam panels are attached to the internal wall of a launch vehicle fairing. This device augments acoustic energy dissipation with damping the resonant frequency of the fairing to reduce the amount of energy that is transmitted into the acoustic volume contained within the wall. Incorporating a plurality of capsules respectively tuned to many frequencies provides broadband structural attenuation. This abstract is provided to comply with the rules requiring an abstract, and is intended to allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.Type: GrantFiled: September 27, 2005Date of Patent: November 23, 2010Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Steven A. Lane, Scott J. Kennedy, Jerry Alcone
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Patent number: RE41945Abstract: A substrate for use in a flooring system which has a subfloor and a decorative upper layer. The substrate is made in a continuous sheet which has a bottom surface, a top surface, side surfaces and end surfaces. The top surface and the oppositely facing bottom surface are essentially parallel to each other and are spaced apart by the thickness of the substrate. Voids are provided in the substrate, the voids are provided between particles of rubber or other similar material. When the substrate is positioned between the subfloor and the decorative top layer, the particles of rubber provide the strength required to prevent deformation of the substrate in the direction of the thickness and the voids contribute to the sound dampening characteristics required to provide decibel reduction across the thickness of the substrate.Type: GrantFiled: July 25, 2007Date of Patent: November 23, 2010Assignee: Ecore International Inc.Inventor: Paul Charles Downey
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Patent number: RE42634Abstract: A sound muffling material for use in combustion engine exhaust mufflers is provided. The material includes volumized fibers retained in compressed form by a material of lower softening temperature than the fibers. When the material is heated by exhaust gases, the material of lower softening temperature is softened allowing the compressed fibers to expand. The fibers may be formed into a knitted fabric retained by a sacrificial thread. The material may be used to support catalyst bricks.Type: GrantFiled: November 4, 1998Date of Patent: August 23, 2011Assignee: Acousta-Fil LimitedInventor: Stephen James Shaughnessy