Entries |
Document | Title | Date |
20080196971 | Soundproofing Assembly, Use For Soundproofing Enclosed Spaces, And Method for Making Same - A soundproofing assembly includes stacked layers in the form of a first set of layers ( | 08-21-2008 |
20080264721 | ACOUSTICAL SOUND PROOFING MATERIAL WITH IMPROVED FIRE RESISTANCE AND METHODS FOR MANUFACTURING SAME - A material for use in building construction (partition, wall, ceiling, floor or door) that exhibits improved acoustical sound proofing and fire resistance. The material comprises a laminated structure having as an integral part thereof one or more layers of intumescent viscoelastic material which also functions as a glue, energy dissipating layer, and a fire resistive layer; and one or more constraining layers, such as gypsum, cement, metal, cellulose, wood, or petroleum-based products such as plastic, vinyl, plastic or rubber. In one embodiment, standard wallboard, typically gypsum, comprises the external surfaces of the laminated structure. | 10-30-2008 |
20080289902 | Protective Shield for Thermal and Acoustic Shielding of Components of an Internal Combustion Engine - The invention relates to a protective shield for the thermal and acoustic shielding of a components of an internal combustion engine, comprising a metal net with a multiplicity of through apertures; at least on absorber layer of a sound-absorbing material; and a carrier plate; wherein the metal net is arranged on the side of the protective shield facing the component; the at least one absorber layer is arranged between the metal net and the carrier plate; and the carrier plate in its edge region is folded over about the edge of the metal net. | 11-27-2008 |
20080296087 | Sound Absorbing and Heat Insulating Material - [PROBLEMS] Provided is a sound absorbing material having a light weight, a smaller thickness, and outstanding sound absorbing property and heat insulating property. | 12-04-2008 |
20080302599 | Apparatus for Absorbing Acoustical Energy and Use Thereof - An apparatus comprising a combination of a microphone and a composite acoustic panel. The composite acoustic panel comprises materials having different spectra of acoustic absorption. The materials may be integrated in a single layer or in a plurality of different layers. | 12-11-2008 |
20080314680 | Sound Transmission Reducing Construction Elements - According to one aspect of the present invention there is provided an acoustic laminate suitable for use in wall, floor and ceiling assemblies and other dividing structure assemblies, the laminate including: a viscoelastic acoustic barrier being in the form of discrete, spaced apart sections or a continuous layer; and a construction panel, the barrier affixed to one or more panel faces of the construction panel. | 12-25-2008 |
20090000865 | Soundproofing Coatings, Method for the Production Thereof and Use of the Same - The invention relates to a sound-absorbing coating for an elastic structure ( | 01-01-2009 |
20090000866 | ACOUSTICAL SOUND PROOFING MATERIAL WITH IMPROVED DAMPING AT SELECT FREQUENCIES AND METHODS FOR MANUFACTURING SAME - Panels for use in building construction (partitions, walls, ceilings, floors or doors) which exhibit improved acoustical sound proofing in multiple specific frequency ranges comprise laminated structures having as an integral part thereof one or more layers of viscoelastic material of varied shear moduli which also function as a glue and energy dissipating layer; and, in some embodiments, one or more constraining layers, such as gypsum, cement, metal, cellulose, wood, or petroleum-based products such as plastic, vinyl, plastic or rubber. In one embodiment, standard wallboard, typically gypsum, comprises the external surfaces of the laminated structure. | 01-01-2009 |
20090026010 | PROCESS FOR PRODUCING SOUND ABSORBER AND PRODUCED BY THE PROCESS, SOUND ABSORBER AND SOUND ABSORBING STRUCTURE - A process for producing a sound absorber having skin layers constituting front and back surfaces and, interposed between the skin layers, a void layer having a number of voids, and having a plurality of formed holes each having a depth which is enough to penetrate one of the skin layers and is not enough to reach the other skin layer; comprising: providing a mold having a fixed part, a movable part, and at least one pin disposed in a manner that it can be projected into and retracted from a cavity; and having a step to cause the pin to project into the cavity during the course of charging the cavity with a resin material and molding the sound absorber and form the holes communicating with the void layer simultaneously with molding of the sound absorber. | 01-29-2009 |
20090038882 | ANGLED CONNECTOR - An angled connector having at least two legs ( | 02-12-2009 |
20090045009 | LINEAR ACOUSTIC LINER - A linear acoustic liner for an aircraft includes a cellular core having a first surface and an opposed second surface. A substantially imperforate back skin covers the first surface, and a perforate face skin covers the second surface of the core. The perforate face skin includes an outer face skin layer having a first plurality of spaced openings, an inner face skin layer having a second plurality of spaced openings, and a porous layer disposed between the outer face skin layer and the inner face skin layer. Each of the first plurality of spaced openings are substantially aligned with one of the second plurality of spaced openings. | 02-19-2009 |
20090084627 | DOUBLE WALL STRUCTURE - A double wall structure capable of suppressing an increase in a sound transmission amount with regard to sound with a specified frequency and stably exhibiting a sound insulation performance for sound with various frequencies is provided. | 04-02-2009 |
20090090580 | Sandwich Element for the Sound-Absorbing Inner Cladding of Means of Transport, Especially for the Sound-Absorbing Inner Cladding of Aircraft - A sandwich element for the sound-absorbing inner cladding of means of transport such as an aircraft. The sandwich element includes a three-dimensionally constructed core structure disposed between two cover layers that run substantially parallel to one another at a distance. A plurality of passages for sound transmission are incorporated in the core structure and/or in at least one cover layers, wherein at least one sound absorption layer is disposed in the area of at least one cover layer at least in parts. | 04-09-2009 |
20090159362 | ACOUSTIC LAMINATED GLAZING, ACOUSTIC INTERLAYER AND METHOD FOR SELECTING THE INTERLAYER FOR OPTIMAL ACOUSTIC DAMPING - Laminated glazing ( | 06-25-2009 |
20090159363 | Dividing Wall Element - A partition element has at least one partition body and a frame construction for accommodating and holding the at least one partition body. The partition body has a first outer panel in the form of a microperforated sheet, a first fleece, a sound absorption device and a second outer panel, which are arranged behind or adjoining one another in that order in the direction of thickness of the partition body. The sound absorption device has at least one sound absorption element having a certain dimension in the direction of thickness of the partition body, and at least one cavity or space having a certain dimension in the direction of thickness of the partition body. | 06-25-2009 |
20090194365 | Sound reducing system - A system is disclosed for reducing the transmission of acoustical energy between a first and second wall surface of a wall comprising a first and a second beam for supporting a sound panel. Each of the first and second beams comprises first and second flanges interconnected by an inner connector with a fold defined in the inner connector for reducing the transmission of acoustical energy between the first and second flange. The fold cooperates with one of the flanges for defining a pocket for receiving an edge of a sound panel. The first and second flange support the first and second wall surface of the wall with the sound panel. | 08-06-2009 |
20090242325 | ACOUSTICALLY INSULATING PRODUCT - An acoustically insulating product for acoustically insulating a building structure includes a base entangled net material, and an acoustical nonwoven material. The acoustical nonwoven material is on at least one side of the base entangled net material. The acoustical nonwoven material has an increase in impact insulation class of 6 or greater. | 10-01-2009 |
20090250291 | TRANSPARENT ACOUSTICAL LAMINATE WALL SYSTEM AND METHOD OF FORMING SAME - A transparent acoustical sound-absorbing, fire-retardant wall finishing system ( | 10-08-2009 |
20090250292 | Automotive sound-absorbing material - A thin and light-weight automotive sound-absorbing material with a superior sound-absorbing property, which can be used, for example, for automotive insulator to keep the interior of an automobile quiet. This automotive sound-absorbing material has a laminate structure comprising a sound-absorbing layer, an intermediate layer, and a sound-absorbing layer. The intermediate layer comprises a film made of thermoplastic resin with a thickness of 10 to 100μ, on which small pores are uniformly opened in such a manner that the aperture ratio would be 0.05 to 5%. The sound-absorbing layers comprise an aggregate of fibers such as felt, glass wool, etc. or porous synthetic resin layer, such as urethane foam, etc. | 10-08-2009 |
20090255755 | SOUNDPROOFING MATERIAL - The object of the present invention is to provide a soundproofing material that is lightweight and has sufficient soundproofing performance. The present soundproofing material includes a frame body 4 including a planar portion and a wall body installed upright on the planar portion and a soundproofing laminate accommodated in a laminate accommodating portion surrounded by the wall body, and the soundproofing laminate has a hard layer consisting of a rubber sheet or the like and a soft layer whose one side of the soft layer is laminated on the hard layer and consists of a felt, a resin foam or the like, and another side of the soft layer is joined to at least one of the planar portion and/or the wall body of the frame body, and a side surface of the soundproofing laminate and a side surface of the wall body are distant from each other. The distance thereof is preferably in the range from 0.3 to 1 mm. | 10-15-2009 |
20090260918 | PANELS INCLUDING RENEWABLE COMPONENTS AND METHODS FOR MANUFACTURING SAME - A panel includes about 0.1% to about 95% by weight of a ground renewable component. In an embodiment, the panel has at least one core comprising: from about 0.1% to about 95% by weight of the ground renewable component; from about 0.1% to about 95% by weight of one or more fibers; and from about 1% to about 30% by weight of one or more binders, all based on dry panel weight. In an embodiment, the ground renewable component has a particle size distribution whereby less than 5% of the particles are retained by a mesh screen with openings of about 0.312 inches and less than 5% of the particles pass through a mesh screen with openings of about 0.059 inches. A method for manufacturing such panels is also provided. | 10-22-2009 |
20090266645 | Sound Insulating Device - The present invention aims to provide a sound insulating device that exerts excellent sound insulating property, the sound insulating device capable of maintaining the sound insulating property over a long period, excelling in assembly workability, and being simply manufactured and readily disposed. | 10-29-2009 |
20090277716 | CONSTRAINED LAYER, COMPOSITE, ACOUSTIC DAMPING MATERIAL - A constrained layer, composite structure for damping acoustic vibrations includes an extensional layer comprised of a first polymeric material, and a constraining layer of a second polymeric material. The modulus of elasticity of the constraining layer is greater than that of the extensional layer. In use, the structure is disposed on the surface of an article in which acoustic vibrations are to be damped so that the extension layer overlies the surface. Also disclosed are methods for preparing the structure, including automated methods. | 11-12-2009 |
20090301809 | Device for absorbing and reducing noise in the inside of a vehicle - A device for absorbing and reducing low-frequency airborne sound in the inside of a vehicle. At locations at which disturbing low-frequency airborne sound occurs, at least one orifice at which low-frequency airborne sound waves are braked, is formed in an adjacent boundary edge surface ( | 12-10-2009 |
20090301810 | Adjustable Sound Panel - A panel that can change its stiffness and/or surface roughness and thereby its sound quality is provided. The panel includes a layer having an outer surface and an inner surface oppositely disposed from the outer surface. The panel can also include an electroactive actuator that is operable to change its shape when a voltage is applied thereto. The change in shape of the electroactive actuator results in a change in stiffness and/or surface roughness of the panel and therefore a change in the panel's acoustic characteristics. In some instances, the electroactive actuator is at least partially within the panel and upon changing of its shape results in a change in the roughness of a surface that faces a sound source. In other instances, the activation of the electroactive actuator results in an increase in stiffness of the panel. | 12-10-2009 |
20090301811 | SOUND-ABSORBING INSULATION PART HAVING HARDENING EMBOSSINGS - The sound-absorbing insulation element is used everywhere sound and/or heat sources have to be shielded, preferably in automotive engineering as a heat shield. The insulation element comprises at least one studded sheet-shaped element which is provided with strengthening embossments. The strengthening embossments have an embossment base and embossment flanks. According to the invention, the sheet-shaped element exhibits material compression, that is to say material hardening, in the region of the embossment flanks. Fissures which have a bizarrely shaped contour lie in the embossment base. These fissures are produced by the stretching and tearing of the embossment base. | 12-10-2009 |
20090321183 | ACOUSTIC PANEL - An acoustic panel for muffling sound. The acoustic panel includes one or more fiberglass mats and an outer layer with a substantially smooth surface. The acoustic panel also includes one or more adhesive elements for securing the outer layer to a selected side of the fiberglass mat to position the substantially smooth surface of the outer layer facing away from the fiberglass mat. | 12-31-2009 |
20100006372 | SOUND INSULATION COMPONENT FOR A RIGID STRUCTURAL MEMBER OF AN AUTOMOBILE - A sound-insulation component for a rigid structural member, of the type including a mass-spring system ( | 01-14-2010 |
20100018799 | ACOUSTIC ENHANCEMENT DEVICE FOR UNDERLAYMENT OF A COVERING - An acoustic enhancement device adapted for being placed on a support and under a covering, and containing a first flexible layer adapted for being placed facing the support, a second rigid layer joined to the first flexible layer and adapted for being placed opposite the support, and a damping element, wherein the damping element is integrated in the second rigid layer or forms a third layer placed on the second rigid layer and opposite the first flexible layer. | 01-28-2010 |
20100025147 | DAMPING MATERIAL, METHOD OF FORMING THE DAMPING MATERIAL AND METHOD OF USING THE DAMPING MATERIAL - A damping material is disclosed along with a method of forming and/or using the damping material. The damping material may be used in a variety of applications, however, has been found particularly useful in aerospace applications. | 02-04-2010 |
20100032234 | SOUNDPROOF COVER FOR AUTOMOBILES - The present invention relates to a soundproof cover for automobiles, the soundproof cover including: a cover body formed of a metal or a resin; and a sound-absorbing material disposed opposite to a sound source, in which the sound-absorbing material has a soft sound-insulating layer on a surface side thereof facing the cover body, the sound-absorbing material is disposed apart from the cover body, and the sound-absorbing material has a peripheral edge that contacts with an inner wall of an edge of the cover body. | 02-11-2010 |
20100051380 | IMPACT SOUND INSULATION TWO-LAYER PANEL - The invention relates to floor covering comprising two different impact sound attenuating layers | 03-04-2010 |
20100065367 | Method of Manufacture of Composite Laminates, an Assembly Therefor, and Related Articles - A method is described for making a composite laminate formed by curing a stacked structure comprising at least two layers of strips of fibrous material impregnated with resin, wherein the strips in adjacent layers have different directional orientations. An apparatus is provided for simultaneously separating a band of fibrous material impregnated with resin into strips and depositing the strips between adjacent pin rows of a pinmat to form the stacked structure. | 03-18-2010 |
20100065368 | LIGHTWEIGHT, FLEXIBLE, MOLDABLE ACOUSTIC BARRIER AND COMPOSITES INCLUDING THE SAME - A composite, light weight flexible, moldable composite acoustic barrier and method of making the same. | 03-18-2010 |
20100078259 | FLOWBODIES AND METHODS OF FORMING FLOWBODIES - Methods of forming flowbodies and flowbodies are provided. In an embodiment, by way of example only, a method includes providing a first sheet of a first material comprising a metal, providing a second sheet of a second material comprising a composite, attaching a portion of the first sheet to a first position on a preform, securing a portion of the second sheet to a second position on the preform, and winding the first sheet and the second sheet around the preform to form the first flowbody, the first flowbody including a laminate comprising alternating layers of the first sheet and the second sheet. | 04-01-2010 |
20100078260 | Acoustical sound barrier material - The present composition is a mixture of pozzolanic binder, recycled raw cellulosic materials (mineralized softwood chips and/or particles, hardwood chips and/or particles or a combination of the two and wood based construction waste), sand, ash and/or ground slag that when cured, forms a sound absorptive product and suitable for use in all climates and weather conditions. The primary use for the present composition is for highway sound barrier walls but the product can also be used in any application where a durable sound absorptive material is required, including rail, industrial, tunnel, residential, and existing wall retro-fit applications. The present composition can be used as an absorptive panel or cast monolithically with reinforced concrete which forms a structural and absorptive precast concrete panel. | 04-01-2010 |
20100089692 | Sound Absorbing Device - An optically reflective sound absorbing device ( | 04-15-2010 |
20100101891 | SOUND-INSULATING LAMINATED STRUCTURE AND METHOD FOR THE PRODUCTION THEREOF - Herein provided is a sound-insulating laminated structure which is excellent in the ability of insulating low frequency sounds whose frequency falls within the range of from 200 to 1000 Hz. | 04-29-2010 |
20100108438 | PANEL FOR ACOUSTIC DAMPING AND FIRE PROTECTION APPLICATIONS - An acoustic panel comprising an inner core sandwiched between outer sheets formed from a different material. According to an embodiment, the inner core comprises a cementicious material that also has fire resistant properties, and the outer sheets comprise metallic sheets. According to an embodiment, the outer sheets include metal tines for forming a bond between the respective metallic sheets and the inner core. The metal tines are formed as projections during the piercing of holes in the metallic sheets. According to an embodiment, the diameter of the holes and/or the thickness and/or composition of the cementicious material can be varied or configured to change the acoustic damping properties of the panel. According to another aspect, the panel comprises a fire resistant acoustic panel suitable for use as a fire protective or blast protection barrier. | 05-06-2010 |
20100116587 | ACOUSTIC PANEL - The invention relates to a panel for an acoustic treatment at the surface of an aircraft, that comprises from the outside to the inside an acoustically resistive porous layer, at least one cellular structure and a reflective or non-permissive layer, wherein the acoustically resistive porous layer includes, at the outer surface that may contact the aerodynamic flows of a sheet or foil, open areas ( | 05-13-2010 |
20100170746 | STRUCTURAL COMPOSITE MATERIAL WITH IMPROVED ACOUSTIC AND VIBRATIONAL DAMPING PROPERTIES - A composite material comprises a nonwoven layer having a viscoelastic interleaf, which may be positioned mid-ply therein. | 07-08-2010 |
20100200327 | MOULDED SOUNDPROOFING COMPONENT, AND MANUFACTURING METHOD THEREOF - This method includes the placing of the first porous layer ( | 08-12-2010 |
20100213002 | FIBROUS MATERIALS, NOISE SUPPRESSION MATERIALS, AND METHODS OF MANUFACTURING NOISE SUPPRESSION MATERIALS - Noise suppression materials and methods of manufacturing noise suppression materials are provided. In an embodiment, by way of example only, a fibrous material includes a network of a plurality of fibers selected from a group consisting of glass fibers and ceramic fibers, the plurality of fibers including a first fiber and a second fiber, the first fiber having a first low melt component and a first high melt component, the first low melt component of the first fiber having a first melting point, the first high melt component of the first fiber having a second melting point that is higher than the first melting point, wherein the first low melt component of the first fiber extends alongside and is adjacent to at least a segment of the first high melt component of the first fiber and is bonded to the second fiber at a contact point. | 08-26-2010 |
20100219014 | COMPOSITE HEADLINER WITH IMPROVED ACOUSTIC PERFORMANCE - A composite headliner material allows sound waves originating within a vehicle to penetrate deeply into the headliner where all of a significant portion of their energy is absorbed rather than reflected back into the vehicle. The coverstock sheet is backed by a multilayer material with a foam core coated above and below by a fibrous glass mat impregnated with an adhesive with scrim layers above and below glass mat layers. | 09-02-2010 |
20100282539 | COMPOSITE MATERIAL MULTILAYERED MEMBRANE WITH SOUND INSULATING AND SOUND ABSORBING TO MITIGATE IMPACT NOISE - The composite material multilayered membrane of the present invention is sound insulating and sound-absorbent, acting as sound deadening insulation for noise impacts, mainly but not exclusively to be used in flooring, and in particular under the slab in floating floors, with the aim of reducing the transmission of noise into the below room. This membrane includes several layers, which include at least one polymeric monofilament three dimensional mat, at least one resilient mat, and at least one topping layer of waterproofing, breathable or not, tissue. This multilayered membrane with a thickness under a weight of 2 kPa of at least 8 and maximum 15 mm, preferably 10-12 mm, so as to achieve a normalized noise level in the disturbed room Lnw below 50 dB, or an impact insulation class of at least 60 points. | 11-11-2010 |
20100300800 | ACOUSTIC GLAZING ELEMENT - The invention therefore provides glazing which, to ensure improved acoustic insulation properties, requires not only an acoustic polymeric interlayer but also a suitable distribution of the masses of the elements on either side of the interlayer. | 12-02-2010 |
20100314195 | Acoustically Tunable Sound Absorption Articles and Methods of Making Same - 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. | 12-16-2010 |
20110100747 | SANDWICH ELEMENT FOR THE SOUND-ABSORBING INNER CLADDING OF MEANS OF TRANSPORT, ESPECIALLY FOR THE SOUND-ABSORBING INNER CLADDING OF AIRCRAFT - A sandwich element for sound-absorbing inner cladding of means of transport, especially aircraft, comprising a three-dimensionally constructed core disposed between two substantially parallel cover layers is provided. | 05-05-2011 |
20110108359 | IMPACT AND SOUND ABSORBING MATERIAL AND SOUND ABSORBING STRUCTURE - [Subject] The subject of the present invention is to provide a shock and sound absorbing material having a light weight, and demonstrating an excellent shock and sound absorbing performance. As a method for solving the subject, the present invention provides a shock and sound absorbing material | 05-12-2011 |
20110139542 | ACOUSTIC SHIELD - A multilayered acoustic shield ( | 06-16-2011 |
20110139543 | SOUND ABSORPTION MATERIAL AND METHOD OF MANUFACTURING SOUND ABSORPTION MATERIAL - Described embodiments relate to a method of manufacturing a sound absorption material. The method comprises: forming a low density fibrous web to act as a porous bulk absorber, the fibrous web containing a proportion of bi-component fibres, each bi-component fibre having a core material and a sheath material around the core material, the sheath material having a lower melting point than the core material; applying a thin facing layer to the low density fibrous web, wherein the facing layer is adhesively compatible with the sheath material; heating the fibrous web to a temperature sufficient to soften the sheath material of at least some of the bi-component fibres; and pressing the facing layer and fibrous web together under low pressure such that at least part of the facing layer contacts the softened sheath material of at least some of the bi-component fibres to form an adhesive bond between the facing layer and the fibrous web. | 06-16-2011 |
20110162910 | LINEAR ACOUSTIC LINER - A linear acoustic liner for an aircraft includes a cellular core having a first surface and an opposed second surface. A substantially imperforate back skin covers the first surface, and a perforate face skin covers the second surface of the core. The perforate face skin includes an outer face skin layer having a first plurality of spaced openings, an inner face skin layer having a second plurality of spaced openings, and a porous layer disposed between the outer face skin layer and the inner face skin layer. Each of the first plurality of spaced openings are substantially aligned with one of the second plurality of spaced openings. | 07-07-2011 |
20110198151 | Ultrasonic Attenuation Materials - Improved acoustic attenuation materials and applications are provided. An improved acoustic attenuation material may include a woven layer of fibers made of porous polymers, such as porous polytetrafluoroethylene (PTFE), that include interstitial space. An improved acoustic attenuation material may include sheets of porous polymers interleaved with layers of epoxy. The sheets of porous polymers may include through holes. An embodiment of an ultrasonic transducer that includes a backing with woven layers of porous PTFE fibers is provided. The ultrasonic transducer that includes a backing with woven layers of porous PTFE fibers may be used in a three-dimensional ultrasound imaging apparatus. An embodiment of an ultrasonic transducer that includes a plurality of sheets of porous PTFE interleaved with layers of epoxy is provided. The ultrasonic transducer that includes a plurality of sheets of porous PTFE may be used in an ultrasonic imaging catheter. | 08-18-2011 |
20110253474 | Automotive Trim Part for Sound Insulation and Absorption - A sound insulating trim part is provided. The sound insulating trim part includes an absorbing area and an insulating area. The absorbing area includes at least a first portion of a porous fibrous layer. The insulating area includes a mass layer and a decoupling layer. The mass layer includes a second portion of the same porous fibrous layer. The second portion has a dynamic Young's modulus (Pa) of at least about (96·AW·t) with AW being an area weight (g/m | 10-20-2011 |
20110253475 | NOISE DAMPENING ENERGY EFFICIENT ENCLOSURE, BULKHEAD AND BOOT MATERIAL - A noise dampening enclosure includes a first insulating layer, a second insulating layer, a carbon material layer disposed between the first and second insulating layers, a metal shield layer disposed between the first and second insulating layers, and a third insulating layer disposed between the carbon material layer and the metal shield layer. The carbon material layer can include resin-impregnated woven carbon fiber fabric. Strands of the carbon material can be orientated in various configurations, including layering the strands at different angles. Noise dampening bulkhead material provides additional shielding between circuit boards or other electronic components contained within the enclosure. In addition, a noise dampening boot can be placed over cable connections and assemblies to decrease the influences of unwanted electromagnetic noise. | 10-20-2011 |
20110266088 | SOUNDPROOF PANEL AND SOUNDPROOF STRUCTURE - A soundproof panel comprising a nonwoven structural member and a board member is prepared. The nonwoven structural member comprises a thermal adhesive fiber under moisture which is melt-bonded to a fiber of the structural member to fix the fibers. The soundproof panel may be a soundproof panel | 11-03-2011 |
20110278091 | Acoustic Structure - An acoustic structure includes plate members defining a plurality of hollow regions in parallel relation to each other. Opening portions are formed in one surface (reflective surface) of the plate members in corresponding relation to the hollow regions and in such a manner as to communicate the hollow regions with an external surface. A plurality of sound absorbing members are provided in a dispersed fashion on regions of the one surface (reflective surface) other than the opening portions and neighborhoods of the opening portions. As a modification, a sound absorbing member may be loaded in one of the hollow regions and partly exposed to the outer space through the corresponding opening portion. | 11-17-2011 |
20120024625 | LOW DENSITY NON-WOVEN MATERIAL USEFUL WITH ACOUSTIC CEILING TILE PRODUCTS - A non-woven material, that can be formed into an acoustic ceiling tile, is provided. The material includes a substantially planar and self-supporting core of an inorganic base fiber and a synthetic thermal bonding fiber. The synthetic thermal bonding fiber preferably has an increased bonding surface area that improves adhesion and porosity to provide a base mat or core with a low density to provide sound absorption required by an acoustic ceiling tile. | 02-02-2012 |
20120037447 | SOUNDPROOFING ASSSEMBLY FOR AN AUTOMOBILE, AND ASSOCIATED WALL ELEMENT - The assembly comprises a base spring layer made with a base of a resilient porous material, and the base spring layer being intended to be placed opposite a surface of the automobile. It comprises a stiffening layer arranged above the base spring layer and having a surface density greater than 250 g/m | 02-16-2012 |
20120103721 | SOUND ATTENUATION CANOPY - A sound attenuation canopy for reducing levels of sound passing through an opening comprises a sound absorbing member. The member is comprised of a flexible sound absorbing material and has a first end, a second end and an intermediate portion extending therebetween. The first end is configured to attach to the opening's periphery at a first location, the second end is configured to attach to the periphery at a second location and the intermediate portion is configured to be spaced apart from the opening. When the first end and the second end are attached to the periphery of the opening, at least one side opening is at least partially defined by the intermediate portion and the perimeter of the opening, and a sound transmission flow path through open space between the opening and the side opening comprises at least one change of direction greater than 45 degrees. | 05-03-2012 |
20120125710 | METAL PANEL ASSEMBLY - A metal panel assembly that may be used in a number of different applications, particularly those that are concerned with improved stiffness and/or reduced vibration and noise. According to an exemplary embodiment, the metal panel assembly has a multi-layer or sandwich construction and includes a metal body layer a sound damping adhesive layer, and a metal outer layer. The outer layer is bonded to the body layer via the adhesive layer and improves the stiffness and/or reduces vibrations in the metal panel assembly. The outer layer may include a number of contact sections that confront the body layer through the adhesive layer, as well as a number of raised sections that are spaced from the body layer and increase or otherwise improve the stiffness of the metal panel assembly. In one embodiment, the raised sections resemble channels and are generally arranged in a column-like pattern; in another embodiment, the raised sections resemble ribs and are generally arranged in a grid-like pattern. | 05-24-2012 |
20120145479 | SOUND ABSORBING BODY - A sound-absorbing body having sound-absorbing characteristics suitable for in-home and car audio systems, wherein the indoor echo of sound wave output from a speaker or echo in a speaker enclosure should be reduced. Namely, showing flat sound-absorbing properties while maintaining a high sound-absorbing ratio in the medium tone range, having a simple structure, is easily installed, water-resistant and is decorative. Specifically, a sound-absorbing body having a plurality of porous members provided with air holes therein and a structure composed by three or more layers formed by bonding the individual porous members via an adhesive layer having a preset thickness, wherein one side of said structure is located in the side of a sound source and the other side of said structure has a peak-and-valley pattern that is formed by alternately positioning said porous members and air layers to thereby flatten and improve the sound-absorbing ratio in the medium tone range. | 06-14-2012 |
20120168247 | TUNABLE ACOUSTICAL PLASTER SYSTEM AND METHOD OF MAKING IT - A method of installing an acoustical system that provides a desired sound attenuation includes attaching an acoustical panel having a first density, a first porosity and a first void volume to the substrate. A first finishing layer is prepared with first particles, a first binder, a first rheological modifier and water which are combined, applied to the substrate and dried. The first finishing layer has a first density. When the first sound attenuation changes to a second sound attenuation a second finishing layer is prepared to include second particles, a second binder, a second rheological modifier and water. The dried second finishing layer has a second density. If the second density is less than the first density, the second sound attenuation is greater than the first sound attenuation. If the second density is greater than the first density, the second sound attenuation is less than the first sound attenuation. | 07-05-2012 |
20120175184 | METHOD FOR MAKING ACOUSTICAL PANELS WITH A THREE-DIMENSIONAL SURFACE - A method for producing acoustical panels with a three-dimensional surface bonds stacks of design pieces to a flat panel. A layer of adhesive is applied over the assembly, and then a fabric layer is applied over the assembly to bond the fabric over the panel and design pieces. | 07-12-2012 |
20120175185 | Soundproofing Device for the Passenger Compartment of a Vehicle, in Particular of an Automobile - The invention relates to a soundproofing device for the passenger compartment of a vehicle ( | 07-12-2012 |
20120234626 | SOUNDPROOF MATERIAL FOR VEHICLE - A first sound absorbing material to be located facing a vehicle room interior side, the air-impermeable material having an air-impermeable film having bonding hot-melts on both sides thereof, and the second sound absorbing material to be located facing a vehicle room exterior side are laminated in this order, and are closely-located between two heating boards and are supplied with hot air to melt hot-melts and thus to make a laminate. The laminate is cold press molded with the first sound absorbing material on a lower mold, and at the same time as the press molding, compressed gas is supplied from an upper mold to apply pressure on the air-impermeable material and thus to compression mold the first sound absorbing material. | 09-20-2012 |
20120255809 | ULTRA-LIGHT SOUND INSULATOR - A sound insulator of the invention includes a sound absorption layer and an air-impermeable resonance layer, which are bonded to each other via an adhesive layer. The sound absorption layer has a thickness in a range of 5 to 50 mm, an area-weight of not greater than 2000 g/m | 10-11-2012 |
20120279799 | SOUND-ABSORBING SHIELDING ELEMENT - A sound-absorbing shielding element, in particular for fitting into a motor vehicle, comprises a layered construction which has a support plate, an acoustically effective porous absorber layer and at least one acoustically effective first microperforated sheet which is arranged on a first side of the absorber layer. An acoustically effective second microperforated sheet is arranged on the first side of the absorber layer. | 11-08-2012 |
20120298442 | Systems and Methods for the Reduction of Underwater Acoustical Noise - The inventive subject matter describes systems and methods for the implementation of an aquatic acoustical barrier, the aquatic acoustical barrier having a multiplicity of acoustical layers, the acoustical layers further having a multiplicity of acoustical leafs, such that when the acoustical barrier surrounds a noise source in the water there is an attenuation created by the noise source. | 11-29-2012 |
20130008740 | Sound Attenuation Stud - The present invention relates to a sound attenuation stud. The stud includes two engagement portions for engaging within a building element. The stud also includes two sound attenuation formations located between the engagement portions. Each sound attenuation formation includes a first portion relative to which second and third portions extend. Preferably, each portion is either parallel or orthogonal with all the other portions. | 01-10-2013 |
20130008741 | SOUND-INSULATING AND VIBRATION-ISOLATING RUBBER PAD AND METHOD FOR INSTALLING A SOUND-INSULATING AND VIBRATION-ISOLATING FLOOR USING SAME - The present invention relates to a sound-insulating and vibration-isolating rubber pad and a method for installing a sound-insulating and vibration-isolating floor using same in which lower pad protrusions can be inserted into a plurality of insertion holes formed in a lower water-proof plywood because the lower pad protrusions are formed in the center of an upper surface of a lower pad body of a sound-insulating and vibration-isolating rubber pad, so that the lower water-proof plywood and an upper pad are integrally connected above a lower pad, and a vibration-isolating function may be achieved in a stable manner because the lower pad, the lower water-proof plywood, and the upper pad are integrally connected, thereby providing a sound-insulating effect that can remarkably reduce inter-floor noise. | 01-10-2013 |
20130025965 | SOUND INSULATION FLOOR STRUCTURE AND SOUND INSULATION FLOOR COMPONENT AS WELL AS METHOD FOR REDUCING FLOOR IMPACT SOUND - A sound insulation floor structure comprises a floor backing member, a floor finishing layer, and an intermediate layer between the floor backing member and the floor finishing layer, the intermediate layer comprising a buffer member comprising a nonwoven structure. The nonwoven structure comprises a thermal adhesive fiber under moisture which is melt-bonded to a fiber of the nonwoven structure to fix the fibers. For example, the sound insulation floor structure may comprise, in sequence, a floor backing member | 01-31-2013 |
20130025966 | ASSEMBLY WALL BODY HAVING IMPROVED SOUND ABSORBING AND SCREENING PERFORMANCE AND A ASSEMBLY STRUCTURE COMPRISING THE SAME - 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. | 01-31-2013 |
20130037346 | Plate Absorber - An aircraft cabin plate absorber includes a supporting panel, a cover panel and an intermediate layer which is arranged between the supporting panel and the cover panel. The cover panel includes a cover layer which is visible from the cabin space, and is arranged on the supporting panel on the side facing the sound inside the cabin space. The cover panel is fastened to the supporting panel by the intermediate layer, and comprises at least one connecting region, in which it is connected to the supporting panel, and at least one absorption region, in which it is arranged so as to oscillate with respect to the supporting panel. The panel is optimized in term of space requirement and weight for use in aircraft and has improved sound absorption properties. | 02-14-2013 |
20130056301 | AUTOMOTIVE INSULATING TRIM PART - A sound insulating trim part with acoustic mass-spring characteristics is provided. The sound insulating trim part includes a mass layer and a decoupling layer. The mass layer includes a porous fibrous layer with a dynamic Young's modulus E of at least about 96·AW·t (Pa), with AW being an area weight (g/m | 03-07-2013 |
20130062142 | Automotive Trim Part for Sound Insulation and Absorption - A sound insulating trim part is provided. The sound insulating trim part includes an absorbing area and an insulating area. The absorbing area includes at least a first portion of a porous fibrous layer. The insulating area includes a mass layer and a decoupling layer. The mass layer includes a second portion of the same porous fibrous layer. The second portion has a dynamic Young's modulus (Pa) of at least about (96·AW·t) with AW being an area weight (g/m | 03-14-2013 |
20130098707 | Mounting Structure for Dash Silencer - In order to mitigate transmission to the passenger compartment of noise generated in the engine compartment, a dash silencer is installed on the passenger-compartment-side surface of the dash panel of an automobile, wherein the mounting operation is facilitated by improving the mounting structure for the dash silencer. A stud pin is provided to the passenger-compartment-side surface of the dash panel, a chevron-shaped slit is formed in the mat-shaped dash silencer, and the stud pin is inserted through the slit, whereby the dash silencer is mounted on the passenger-compartment-side surface of the dash panel, wherein, when the chevron-shaped slit is formed in the dash silencer , a lower portion separated by the slit is caused to project farther than the upper portion toward the passenger compartment, and the lower portion is caused to inflect into the passenger compartment so as to form a stepped shape. | 04-25-2013 |
20130118831 | STRUCTURE HAVING SOUND ABSORPTION CHARACTERISTIC - To absorb a noise produced by an external force that generates an audio frequency even if it is applied thereto, and to make it hard to become a noise source to a surrounding area. | 05-16-2013 |
20130153330 | SOUNDPROOF SHEET FOR VEHICLES, MANUFACTURING METHOD THEREOF, AND DASH SILENCER FOR VEHICLES USING SOUNDPROOF SHEET - A dash silencer is constructed by layering a front side layer formed from a porous material, an intermediate layer constructed by a film structure body and a rear side layer. The rear side layer has upper and lower side layer portions which are formed from porous and sound insulation materials respectively and layered on upper and lower side layer portions of the intermediate layer. | 06-20-2013 |
20130161126 | Sound Absorbent Barrier - 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. | 06-27-2013 |
20130199871 | SOUND ATTENUATING DEVICE USING AN EMBEDDED LAYER FOR ACOUSTICAL TUNING - The present invention includes a layered acoustical system for sound attenuation in a vehicle including an external decorative layer; a moldable fiber backer adhesively adhered to a back side of the decorative layer, the moldable fiber backer further including an engineered fiber blend including one or more types of thermoplastic fibers and having a first density; a moldable lofted sound absorber and vibration decoupling layer including being made from another engineered fiber blend including one or more types of thermoplastic fibers and having a second density that is less than the first density of the moldable backer, a top side of the vibration decoupling layer being adhesively adhered to the second side of the moldable fiber backer; and an intermediate layer embedded in a location within the vibration decoupling layer to achieve a balance point between transmission loss and sound absorption. | 08-08-2013 |
20130206501 | CEILING PANELS MADE FROM CORRUGATED CARDBOARD - An acoustical ceiling panel comprising a flat core and an acoustically transparent face sheet adhesively attached to one of two oppositely facing major sides of the core, the core comprising a multitude of layers of corrugated fiberboard laminated together, the corrugated fiberboard layers each having a corrugated medium adhesively attached to a flat liner board, the corrugated medium forming regularly spaced flutes of curvilinear cross-section, the flutes of the layers of fiberboard being arranged in parallel directions extending perpendicularly to the major faces of the core. | 08-15-2013 |
20130206502 | WALL STRUCTURE WORKING AS A NOISE BARRIER FOR RAILWAYS AND USE OF THE WALL STRUCTURE AS A NOISE OR PASSAGE BARRIER - The object of the invention is a wall structure working as a noise barrier for railways, which comprises at least a plurality of wall elements placed consecutively end-to-end with each other, which wall elements are hinged by means of hinge pieces at their bottom edges for toppling downwards from their vertical position. The wall elements are disposed inside the width reach of the wagons or cargo space of a train and for toppling by means of the hinge pieces to below a wagon or a load that is lower than normal and/or is overwide. The wall structure is suited for use e.g. as a noise barrier or passage barrier for a railway. | 08-15-2013 |
20130264146 | ACOUSTIC MODULE FOR ENCLOSURE PANEL - An acoustic panel for an enclosure includes a panel plate having opposite interior and exterior sides, and an acoustic module assembly including a plurality of acoustic modules secured on the interior side of the panel plate. Each acoustic module includes a retainer having a retainer base, spaced in generally opposing relationship with the panel plate, and upper and lower retainer walls extending outward from the retainer base toward the panel plate to define a horizontal channel-shaped cavity. An acoustic insulation member is received in the horizontal channel-shaped cavity of the retainer, such that the acoustic insulation member is positioned between the interior side of the panel plate and the retainer base. | 10-10-2013 |
20130277146 | CONVERGENCE SOUND-ABSORBING MATERIAL AND METHOD OF FABRICATING THE SAME - Disclosed is a convergence sound-absorbing material and a method of fabricating the same, and more particularly, a convergence sound-absorbing material and a method of fabricating the same in which an inexpensive eco-friendly recycled filler composed of polyurethane foam and a recycled thread or waste felt is used as a filler in an intermediate layer of the PET sound-absorbing material to provide remarkably reduced fabrication costs and excellent sound-absorbing performance. In addition the waste felt, which is typically discarded during a process of cutting the sound-absorbing material, is recycled for use in the filler. | 10-24-2013 |
20130299273 | Acoustical Vinyl Flooring and Methods of Manufacture - An acoustical vinyl tile having an integral acoustical layer is disclosed. The vinyl tile includes a vinyl portion, an acoustical portion, and an adhesive layer for fixing the vinyl portion to the acoustical portion. The acoustical portion comprises a crumb rubber component and a polyurethane foam component. The acoustical portion can include 10-40% crumb rubber and 60-90% polyurethane foam. The resulting vinyl tile meets ASTM E 2179 IIC sound requirements. A method of making a vinyl tile meeting the ASTM sound requirements is also disclosed. The method includes providing a vinyl slab portion, providing an acoustical slab portion comprising crumb rubber, polyurethane foam and a resin binder; and bonding the vinyl slab portion to the acoustical portion. Other embodiments are described and claimed. | 11-14-2013 |
20130319791 | CONSTRAINED-LAYER DAMPING MATERIAL - A constrained-layer damping material including a bitumen material, a binder material, and a tackifier, wherein the bitumen is a soft grade with a penetration of at least 150 dmm and a ring and ball softening point of greater than about 35° C. | 12-05-2013 |
20130327589 | ISOLATION AND BARRIER TYPE SOUND TREATMENT DEVICES - An acoustic isolator is capable of being placed on a resting surface and receiving a sound producing device. The acoustic isolator includes a sheet like barrier member having a first surface and a second surface and a thickness of less than about 0.375 inches. The barrier member is composed of a plastic material. A sheet like fiber based fabric member has a first surface coupled to the second surface of the barrier member to form a laminated sheet having at least two layers. Also, a paintable acoustic barrier sheet is capable of being attached to and covering a room surface member, and receiving a paint material to permit the user to choose the color of covered room surface member by applying paint thereto. The paintable acoustic barrier comprises a sheet like barrier member having a first surface, a second surface and a thickness of less than about 0.2 inches. The barrier member is comprised of a first plastic material. A sheet like plastic barrier second member is composed of a second plastic material and has a first surface coupled to the second surface of the barrier member to form a laminate having at least two layers, and a second surface. The second surface is capable of receiving paint in a manner that permits the paint to adhere to the first surface in an even aesthetically pleasing manner. | 12-12-2013 |
20130341120 | SOUNDPROOF MATERIAL USING POLYURETHANE FOAM FROM CAR SEAT AND FABRICATION PROCESS THEREOF - Disclosed is a soundproof material fabricated using recycled polyurethane foam from waste seats and a process of fabricating the same, and more particularly, a soundproof material fabricated by stacking a thermoplastic polymer on a sound absorbing material including recycled polyurethane foam from seats from end-of-life vehicles and a process of fabricating the same. Use of recycled resources provides an eco-friendly impact, reduces manufacturing costs for parts, and allows for improved mechanical rigidity and sound insulating properties. The soundproof material may be applied to various automobile parts such as package trays, luggage coverings, covering shelves, and isolation pads. | 12-26-2013 |
20140000978 | GYPSUM-PANEL ACOUSTICAL MONOLITHIC CEILING | 01-02-2014 |
20140000979 | GYPSUM-PANEL ACOUSTICAL MONOLITHIC CEILING | 01-02-2014 |
20140000980 | Sound Attenuating Composite Articles And Methods Of Making Same | 01-02-2014 |
20140000981 | COATING AND ITS MANUFACTURING PROCESS | 01-02-2014 |
20140008144 | AIRCRAFT INTERIOR PANEL WITH ACOUSTIC MATERIALS - A panel assembly that includes a first panel having an inner surface and an outer surface, and a second panel having an inner surface and an outer surface. The second panel includes a plurality of rib members formed therein that extend inwardly. The rib members include an inner surface and an outer surface. A plurality of panel portions are defined between the plurality of rib members. The panel portions include an inner surface and an outer surface. The inner surface of the rib members are secured to the inner surface of the first panel, and the inner surface of the panel portions is spaced apart from the inner surface of the first panel to define at least first and second cavities. | 01-09-2014 |
20140014437 | ONE LOOK ACOUSTICAL CEILING TILE - A family of acoustical ceiling panels for schools, offices, hospitals and other public buildings provides for one consistent look throughout the building while yet provide a range of desired acoustical performances. The family includes a group of substrate mats of a bonded mixture of mineral fiber, glass fiber, and bi-component fibers. Each mat is chosen from a group including a thickness of ¾″, ⅞″ and 1″ depending upon acoustical performance. The group of substrate mats all have an exposed surface chosen from a group including fine texture, heavy texture, medium texture and light texture. The group of mats all have an edge chosen from a group including square, tegular and narrow tegular. | 01-16-2014 |
20140014438 | AUTOMOTIVE NOISE ATTENUATING TRIM PART - A sound attenuating trim part, including at least one insulating area with an acoustic mass-spring characteristics having at least a mass layer and a decoupling layer adjacent to the mass layer, whereby the mass layer consists of a porous fibrous layer and a barrier layer, with the barrier layer being located between the porous fibrous layer and the decoupling layer and all layers are laminated together, and whereby the porous fibrous layer at least in the insulating area has adjusted dynamic Young's modulus (Pa) such that the radiation frequency of is at least 3000 (Hz). | 01-16-2014 |
20140027199 | Vibro-Acoustic Attenuation or Reduced Energy Transmission - Vibro-acoustic attenuation or reduced energy transmission. The present invention relates to devices that display frequency zones of strong vibro-acoustic attenuation or reduced energy transmission. This can be used in particular, although not necessarily solely, in applications that require lightweight materials with good mechanical properties and good vibro-acoustic response or in applications that require materials with high sound reflection, absorption or sound isolation in a certain frequency band. | 01-30-2014 |
20140034414 | ELECTRIC HEATER FOR INTEGRATION INTO AN AIRCRAFT ACOUSTIC PANEL - An electric heater ( | 02-06-2014 |
20140034415 | SOUND INSULATION - A sound insulation device (D) includes at least three layers:
| 02-06-2014 |
20140034416 | MULTI-DEGREE OF FREEDOM RESONATOR ARRAY - Apparatus and methods for attenuating noise, vibration, and/or acoustic energy in a turbomachine. The apparatus includes a first base plate having first base plate perforations defined therethrough. The apparatus also includes first and second spacers each extending from the first base plate, being spaced apart from each other, and defining a first channel therebetween. The apparatus further includes a first insert disposed in the first channel and having insert perforations defined therethrough, the first base plate, the first and second spacers, and the first insert at least partially defining a first acoustic chamber therebetween, wherein the base plate perforations and the insert perforations are in communication with the first acoustic chamber. | 02-06-2014 |
20140054107 | ACOUSTICAL DOOR STRUCTURE - A door structure is provided having two outer dampening layers, each outer dampening layer having a base surface and a damping surface, and an inner compartmentalized layer adjacent to the damping surfaces of the two outer dampening layers, the inner compartmentalized layer includes at least two compartments, wherein the damping surfaces of the two outer dampening layers are substantially unconstrained relative to the inner compartmentalized layer such that the damping surfaces are deformable. | 02-27-2014 |
20140083797 | COMPOUND MEMBRANE AND ACOUSTIC DEVICE USING SAME - The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyarylate film, and a thermoplastic polyurethane elastomer attached to one surface of the polyarylate film. | 03-27-2014 |
20140083798 | METHOD FOR MANUFACTURING A SOUND ATTENUATION PANEL - The present disclosure provides a method for manufacturing a sound attenuation panel having a first cellular core structure and a second cellular core structure joined in a junction area (J), the first and second cellular core structures. The method includes: a) a joining edge of the first cellular core structure is joined to a corresponding joining edge of the second cellular core structure, thereby forming the junction area; b) the first cellular core structure and the second cellular core structure are placed between an inner skin and an outer skin of the panel. | 03-27-2014 |
20140097035 | Motor Vehicle Acoustic Insulator, Methods Of Manufacture And Use Thereof - 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. | 04-10-2014 |
20140097036 | MULTI-LAYER MATERIAL FOR APPLICATION TO A VEHICLE UNDERBODY - A dual layer material adapted to being applied to a vehicle underbody including a panel shaped body formed by a moldable polyethylene terephthalate (PET) layer joined with a polypropylene and glass composite layer in order to provide at least one of improved wear and abrasion resistance on an outer facing surface and acoustic noise attenuation on an inner vehicle facing surface. The dual layer material can also incorporate a bonding agent for adhering the layers together. | 04-10-2014 |
20140097037 | SOUND CONTROL MAT - A sound control mat includes a waterproof separation layer, an entangled monofilament structure, and a meltblown nonwoven. The sounds control mat provides improved sound control such as improved impact insulation. | 04-10-2014 |
20140110187 | TEXTILE PLY CAPABLE OF ABSORBING SOUND WAVES - Textile ply formed by weaving yarns sheathed in a thermoplastic substance, said sheathed yarns being spaced apart from one another in both the warp and weft direction so as to form openings referred to as “intersection” openings arranged at the intersections between the warp yarns and weft yarns, said textile ply being intended to enable an absorption of sound waves, characterized in that it comprises in the warp direction and/or in the weft direction a plurality of groups of at least two sheathed yarns that are juxtaposed and that have the same weaving orientation, said yarns of one and the same group being locally spaced apart from one another and forming a plurality of openings referred to as “parallel” openings each comprising a shape and an angular orientation that are different from those of the openings referred to as “intersection” openings. | 04-24-2014 |
20140124291 | GYPSUM-PANEL ACOUSTICAL MONOLITHIC CEILING - An acoustical panel for forming a monolithic ceiling or wall, the panel extending across a rectangular area, and having a core made primarily of gypsum, the core being essentially coextensive with the panel area such that it has two opposed sides, each of an area substantially equal to the area of the panel, the core having a multitude of perforations extending generally between its sides, the perforations being distributed substantially uniformly across the full area of the core and being open at both sides of the core, the face side of the core being covered by a porous layer, the perforations being optionally restricted at a rear side of the core, the porous layer at the face side of the core being suitable for adherence of drywall joint compound and a water-based non-blocking paint. | 05-08-2014 |
20140144722 | COMPOSITE SOUND ABSORBING MATERIAL FOR VEHICLE AND METHOD OF MANUFACTURING THE SAME - Disclosed is a composite sound absorbing material for a vehicle, which improves a sound absorption coefficient of a low-to-mid frequency region and provides a weight reduction effect, and a method of manufacturing the composite sound absorbing material. The method includes a first step of laminating fabric in a sheet form with a film by using a bonding tool and a second step of puncturing the fabric laminated with the film to thereby manufacture punctured nonwoven fabric. | 05-29-2014 |
20140151150 | MONOLITHIC ACOUSTICALLY-TREATED COMPOSITE STRUCTURES AND METHODS FOR FABRICATING THE SAME - Monolithic acoustically-treated composite structures and methods for fabricating the same are provided. A monolithic acoustically-treated composite structure comprises an internal frame assembly comprising a unitary composite frame structure and at least one acoustic panel assembly. The unitary composite frame structure defines a shape of the monolithic acoustically-treated composite structure to be fabricated. A composite overlay covers the internal frame assembly. The method for fabricating the monolithic acoustically-treated composite structure comprises forming the unitary composite frame structure, including the at least one acoustic panel in the unitary composite frame structure, and covering the internal frame assembly with the composite overlay. | 06-05-2014 |
20140182966 | PANEL ASSEMBLY HAVING MULTI-LAYER PATCH FOR SOUND DAMPING - A panel assembly with a multi-layer patch may be used in any number of different applications in order to reduce noise or vibrations, provide thermal insulation, and/or improve the structural integrity of an underlying part. In an exemplary embodiment where the panel assembly is a vehicle part, the panel assembly includes a main panel, a primary adhesive layer, and a multi-layer patch that includes at least two individual patches and at least one auxiliary adhesive layer. The primary adhesive layer attaches the multi-layer patch to the main panel, and the auxiliary adhesive layer attaches the individual patches together. The size, shape, thickness and/or composition of the different layers of the multi-layer patch may be specifically chosen to exhibit certain sound and/or thermal damping properties. | 07-03-2014 |
20140182967 | ACOUSTIC DECORATIVE MATERIAL - An acoustic decorative sheet includes a film layer, a glass cloth layer, and an adhesive layer separating the film layer from the glass cloth layer. The adhesive layer is adhered to the film layer and the glass cloth layer. The film layer and the adhesive layer have a plurality of micro bores disposed there through. The micro bores have a diameter in a range from 20 to 500 micrometers and number from 2 to 700 microbores per cm | 07-03-2014 |
20140202788 | SOUND CONTROL SYSTEM - A sustainable linear sound-deadening board with a tongue and groove design, which allows multiple boards to connect linearly and giving a both clean and attractive appearance. The board is effective in reducing reverberation within a room as well as acting to improve the soundproofing aspect of undesired sound leaking from one room to another. The board can be made from reused or biodegradable materials thus creating a device that is both cost-effective and less harmful to the environment. | 07-24-2014 |
20140246268 | SOUNDPROOF BODY AND INSULATOR FOR MOTOR VEHICLES - A dash insulator is constructed by layering a front layer, a sound absorption layer of a membrane-vibration type and a perforated sound insulation layer. A layered body of the sound absorption layer and the perforated sound insulation layer is constructed such that the inner diameter and the opening ratio of opening portions of the perforated sound insulation layer are set to enable suppression of a resonance phenomenon between vibrations of the sound absorption layer and the perforated sound insulation layer in relation to low frequency range noise components of noise. | 09-04-2014 |
20140262607 | Kit For Assembling Acoustic Treatments To Surfaces - An acoustic panel for reducing and dampening reflected sound therefrom is provided. The panel is formable in an engagement of one or a plurality of individual sections having undulating surfaces to form the entire acoustic panel allowing for easy user transport, assembly, and installation. | 09-18-2014 |
20140299409 | NOISE REDUCTION SYSTEM FOR COMPOSITE STRUCTURES - 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. | 10-09-2014 |
20140326535 | SOUND ABSORBING AND SOUND BLOCKING REINFORCED BOARD FOR VEHICLE AND METHOD MANUFACTURING THE SAME - A sound absorbing and sound blocking reinforced board for a vehicle is provided, which has advantages of simultaneously satisfying sound absorbing properties. The sound absorbing and sound blocking reinforced board is capable of reducing environmental pollutants and improving economic efficiency by including a sound absorbing layer, which includes a recycled polyurethane foam, a binding material, a web forming material, and a rigid reinforcement material; and a sound blocking layer. | 11-06-2014 |
20140326536 | STRUCTURAL ACOUSTIC ATTENUATION PANEL - An acoustic attenuation panel includes a resistive skin having acoustic holes, a solid skin and an acoustic structure. The acoustic structure includes a sound-absorbing material and is arranged between the resistive skin and the solid skin. In particular, the solid skin is structural and forms a transverse spacer between the solid skin and the resistive skin. | 11-06-2014 |
20140332313 | SOUNDPROOFING ASSEMBLY, IN PARTICULAR FOR A MOTOR VEHICLE - This assembly includes an elastic and porous base spring layer intended to be placed facing a surface, in particular of an automobile vehicle, and an intermediate insulation layer impervious to the passage of air, the intermediate layer being positioned on the base spring layer. The airproof intermediate layer has a surface mass density of less than 500 g/m | 11-13-2014 |
20140353078 | TRANSPARENT ACOUSTIC DAMPER - An transparent acoustic tuning film (acoustic damper) has a film sheet and the film sheet is thin and transparent. The film sheet can be various shapes as design requirements, and the film sheet has one or more than one fine aperture with a diameter smaller than | 12-04-2014 |
20140353079 | TUNABLE ACOUSTIC PANEL - A tunable acoustic panel that functions as an acoustic diffuser and absorber is disclosed. The acoustic properties of the tunable acoustic panel can be quickly and conveniently modified by moving a handle. The tunable acoustic panel is wall-mountable for use as an acoustical room treatment to selectively vary the acoustical response of a room or performance space. | 12-04-2014 |
20150008070 | SOUND-ABSORBING PANEL AND ASSOCIATED MANUFACTURING METHOD - A sound-absorbing panel comprising a padding layer with heat-bonded synthetic fibers, wherein the padding layer has a first outer surface, a second outer surface and a first thickness, wherein the panel is made of said padding layer with no further layers of a different material between the first outer surface and the second outer surface, wherein the padding layer in at least one portion of panel has a variable density in a direction transverse to the first and second outer surfaces, the density being higher in proximity of the first and second outer layers thereof and being lower in proximity of its inner layer. | 01-08-2015 |
20150034414 | SOUND INSULATION MATERIAL - The performance of a sound insulation material in which chips are utilized is improved. The sound insulation material includes a chip layer containing many chips. The chip layer is covered with a coat, and the chip layer includes an unbreathable intermediate membrane layer dividing the chip layer into a plurality of layers. | 02-05-2015 |
20150068836 | Acoustic Core Which Can Be Built Into A Structure - An acoustic core which can be built into a structure, such as a door or partition, in order to enable the structure to have good sound absorption and/or sound insulation properties. The core includes a multilayer substrate which has a soundproofing effect and which is mounted between two outer parts, the multilayer substrate and the outer parts being attached together so as to form a whole. The multilayer substrate includes an upper layer consisting of a polymer film, a central layer consisting of a polymeric and/or oxidized bitumen optionally having a reinforcement, and a lower layer consisting of aggregate from recycled tires. The outer parts are made of wood, wood derivatives, metal, or a plastic material, and are each provided with grooves or wedges in order to prevent full surface contact with the multilayer substrate and thereby enhance the desired soundproofing effect. | 03-12-2015 |
20150068837 | THIN PANEL FOR ABSORBING ACOUSTIC WAVES EMITTED BY A TURBOJET ENGINE OF AN AIRCRAFT NACELLE, AND NACELLE EQUIPPED WITH SUCH A PANEL - The present disclosure relates to a thin panel for absorbing sound waves emitted by a turbofan of an aircraft nacelle. The thin panel includes a plate capable of vibrating so as to convert the waves into evanescent waves. | 03-12-2015 |
20150075901 | INTERLOCKING SOUNDPROOFING BLOCK SYSTEM AND METHOD | 03-19-2015 |
20150090525 | MOLD FOR MAKING SOUND-ABSORBING DUCT AND SOUND-ABSORBING DUCT USING THE SAME - A mold for manufacturing a sound-absorbing duct, may include an inner mold made of an elastic material and having a channel therein, a sound-absorbing pad disposed outside the inner mold, and an outer mold disposed outside the sound-absorbing pad and having at least one first injection groove on an inner circumferential surface thereof. | 04-02-2015 |
20150096831 | SOUND PANEL AND METHOD FOR ASSEMBLY OF A SOUND PANEL - A sound panel includes an outer fabric, an absorption member that at least indirectly connects to the outer fabric, and a frame that is at least indirectly connected to the absorption member, where the outer fabric is fastened to the frame. | 04-09-2015 |
20150122577 | LOW FREQUENCY ACOUSTIC ATTENUATOR AND PROCESS FOR MAKING SAME - A method of manufacturing an acoustic attenuation device includes three-dimensionally printing a pair of sheets and webs that cooperate with the sheets to define attenuation chambers. Each chamber has at least one opening through which excited air resonates. | 05-07-2015 |
20150136521 | ACOUSTIC PANEL HAVING LIGHTING PROPERTIES - The invention provides an acoustic panel comprising a plurality of parallel-arranged elongated cavities, wherein each cavity has a first cavity wall and a second cavity wall tapering to a cavity back end and defining a cavity opening angle (Y) having a value in the range of 0°05-21-2015 | |
20150144421 | Sound Absorbing Sandwich Plate - A sound absorbing sandwich plate for attaching to a component includes a first layer and a second layer connected to the first layer in an areal manner characterized in that, at least partially, especially along the second layer at least an area-shaped mounting part is provided, which at its side facing the second layer has a plurality of engaging elements, which are engageable into the second layer. | 05-28-2015 |
20150292413 | ACOUSTIC LINER - An acoustic liner has a honeycomb layer disposed between a first panel and a permeable panel and includes a plurality of serpentine walls spaced apart from one-another. Adjacent serpentine walls outline in-part a first region carried by the first panel and an opposing second region carried by the permeable panel. The first and second regions are offset such that a centerline distance extending between the regions and centered between adjacent walls is greater than a distance measured directly between the panels, enabling the design of thinner acoustic liners. The regions and adjacent walls further define a cell having a constricted portion communicating between an end portion and an entry portion such that the constricted portion creates a frequency shift. | 10-15-2015 |
20150307037 | DASH PAD FOR VEHICLE - A low-weight sound-absorbing dash pad for a vehicle includes a sound-absorbing/blocking multilayer bonded to a surface of a sound-absorbing member. The sound-absorbing/blocking multilayer is formed by sequentially bonding a first sound-absorbing layer, a sound-blocking layer, and a second sound-absorbing layer that are made of thermoplastic resin. | 10-29-2015 |
20150307038 | DASH PAD FOR VEHICLE - Disclosed is a low-weight sound-absorbing type dash pad for a vehicle which can maximize sound-absorbing and sound blocking performances, reduce manufacturing cost and steps of processes, and improve in-line work efficiency. In particular, the low-weight sound-absorbing type dash pad for a vehicle is manufactured by bonding a first sound-absorbing layer made of microfibers, a sound-blocking layer made of thermoplastic resin, and a second sound-absorbing layer made of thermoplastic fiber or thermoplastic multi-lobal fiber to each other. | 10-29-2015 |
20150308111 | MULTI-LAYER CEILING TILE - A less costly multi-layer acoustical panel having improved noise absorption properties includes a fiberglass layer and a mineral wool layer wherein the fiberglass layer has a fibrous content comprising at least about 50% by weight of glass fiber and the mineral wool layer has a fibrous content comprising at least about 50% by weight of mineral wool fiber. The noise absorption coefficient of the panel is linearly related to increases in the thickness of the fiberglass layer. A lamination technique for making the panels is also disclosed. | 10-29-2015 |
20150330072 | ACOUSTIC CEILING BOARD WITH IMPROVED AESTHETICS - Described herein are acoustical panels, comprising: a substrate; a non-woven veil having an airflow resistance of greater than 45 mks rayls, comprising: from about 20 wt. % to about 60 wt. % glass fibers; from about 40 wt. % to about 80 wt. % of a filler; and from about 110 dry g/m | 11-19-2015 |
20150330073 | Hermetic and Acoustically Absorbent Assembly for a False Partition - An acoustically absorbent assembly intended to constitute, inside premises, a partition element able to be fixed to at least one partition for producing false partitions, comprising: two fabrics parallel to each other and assembled on an attachment means at a periphery of the two fabrics, the fabrics defining respectively an inner fabric and an outer fabric when the assembly is fixed to the partition, one of the fabrics being free from perforations, wherein the outer fabric is disposed at a given distance from the inner fabric and the outer fabric comprises microperforations configured as an acoustic fabric. | 11-19-2015 |
20150364124 | Transmission Obscuring Cover Device - A transmission obscuring cover device obscures video and audio transmissions from an electronic apparatus. The device includes a panel having a bottom surface. An adhesive is coupled to the bottom surface for being adhered to an electronic apparatus. The panel is a sound absorber wherein the panel is configured for being positioned over a microphone of the electronic apparatus to inhibit transmission of sound to the microphone. | 12-17-2015 |
20150369907 | SYSTEMS AND METHODS FOR ACOUSTIC WINDOWS - Systems and methods for acoustic windows are disclosed. An acoustic window may include a structural core and a non-structural tuning layer. The structural core may include a carbon reinforced composite, and the non-structural tuning layer may include an epoxy. The structural core may have local minima for insertion loss. The epoxy may increase a bandwidth about the minima of frequencies which are subject to relatively low insertion loss. | 12-24-2015 |
20160012811 | SOUND INSULATING STRUCTURE | 01-14-2016 |
20160024783 | DYNAMICALLY ADJUSTABLE ACOUSTIC PANEL DEVICE, SYSTEM AND METHOD - A dynamic passive acoustic panel device comprises an enclosure having a front opening, an absorbent panel of sound absorbent material mounted in the enclosure behind the front opening, and a reflective surface mounted in the front opening in front of the absorbent panel. The reflective surface comprises a tessellated array of reflective panels of matching shape arranged in a series of rows, each row being mounted for rotation about a central axis so as to vary the angle of inclination of the reflective panels in each row relative to the absorbent panel from zero degrees to ninety degrees to the absorbent panel, so as to vary the reflection and absorption characteristics of the panel device. A control system controls rotation of the rows of reflective panels, so as to vary the reflection and absorption levels between maximum reflection and maximum absorption based on desired acoustic properties of a space in which the panel device is located. | 01-28-2016 |
20160042730 | SOUND-ABSORBING MATERIAL AND WIRE HARNESS EQUIPPED WITH SOUND-ABSORBING MATERIAL - It is aimed to provide a sound-absorbing material and a sound-absorbing-material equipped wiring harness capable of absorbing sound in a wide frequency range from a low frequency to a high frequency. A sound-absorbing material | 02-11-2016 |
20160047119 | NOISE ABATEMENT FOR AIRCRAFT COMPONENTS AND SYSTEMS IN AIRCRAFT BAYS - An acoustic absorption material may comprise an outer layer and a first layer of batting material proximate to the outer layer. A first layer of room temperature vulcanized silicone (RTV) may be proximate to the batting material. A second layer of batting material may be proximate to the first layer of RTV opposite the first layer of batting material. | 02-18-2016 |
20160075108 | ACOUSTIC INSULATING PANEL - An acoustic insulating panel includes at least one magnesium oxide board affixed to at least one low emissivity insulating sheet. The low emissivity insulating sheet is composed of two bubble-pack layers, each composed of two thermoplastic films forming there between a plurality of closed cavities, and a central film interposed between and bonded to the two bubble-pack layers. The central film is a thin foil of metal or a metallized thermoplastic film. | 03-17-2016 |
20160076245 | SOUND ATTENUATION BUILDING MATERIAL AND SYSTEM - 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. | 03-17-2016 |
20160090735 | DEVICE FOR ABSORBING STRUCTURE-BORNE SOUND - A device for absorbing structure-borne sound comprises at least one torque transmitting flange having two or more layers of materials of different damping capacity and stiffness stacked on each other. At least a portion of the flange has a radially jagged cross-sectional profile including two or more flanks consecutively arranged in radial direction and alternately inclined to the radial direction. The consecutive flanks merge into each other by forming corners, respectively. This structure-borne sound absorber reduces the propagation of vibrations at acoustically relevant frequencies via rotating machine parts. Combination with a compensation coupling results in a high-elasticity coupling preventing noise radiation. | 03-31-2016 |
20160111077 | MULTILAYER INTERLAYER HAVING SOUND DAMPING PROPERTIES OVER A BROAD TEMPERATURE RANGE - A polymer interlayer having improved sound insulation is disclosed. The polymer interlayer comprises at least one soft layer wherein the soft layer comprises: a first poly(vinyl butyral) resin having a first residual hydroxyl content and a first glass transition temperature (T | 04-21-2016 |
20160118033 | PANEL ASSEMBLY HAVING STRUCTURAL ADHESIVE JOINT - A panel assembly | 04-28-2016 |
20160118034 | Particulate Sound Barrier and Sound Absorption/Insulation Board Thereof - A particulate sound absorption board used for sound absorption surface layer of sound absorption/insulation board is a micropore particle board formed by splicing skeleton particles and filling particles which are covered with binding agent on the surface and have small angularity coefficient. The particulate sound insulation board used for sound insulation surface layer of sound absorption/insulation board is a compressed board formed by closely splicing skeleton particles, filling particles, binding agent and coupling agent, and there is a resonance sound absorption cavity that functions together with sound absorption surface layer in the board body. The particulate sound barrier consists of column and more than two overlapped sound absorption/insulation boards fixed between adjacent columns. A convex-concave joint end face is set on the sound absorption/insulation board, and the sealing cushion is bound between adjacent end faces. | 04-28-2016 |
20160121814 | HIGH PERFORMANCE MOLDABLE COMPOSITE - A moldable composite with high heat resistance and noise absorption properties utilizes nonwoven fabrics and a heat resistance additive. The composition that provides both superior acoustic performance and excellent flex modulus that may be utilized in automotive products and applications in interior and exterior structures. A blowing agent may be utilized to create micro porous cells in a polymer non-woven structure. The cells or voids make the material lighter and allow the material to have superior acoustic properties that are useful in automotive applications. | 05-05-2016 |
20160129855 | ACOUSTIC BARRIER ASSEMBLY WITH ACOUSTIC SEAL AND METHOD OF MANUFACTURING THE SAME - An acoustic barrier assembly for a vehicle and a method of manufacturing the same is disclosed. A decoupler layer surrounds a pass-through opening in a wall of the vehicle to defining a decoupler aperture that is open to the pass-through opening. A barrier layer abuts the decoupler layer and defines a barrier aperture that is also open to the pass-through opening. An acoustic seal is integrally formed in the barrier layer. The acoustic seal defines an exposed region of the barrier layer that is not bounded by the decoupler layer. The exposed region of the barrier layer directly contacts the wall around the pass-through opening and seals around a penetrating member that extends through the pass-through opening. The acoustic seal thus reduces flanking noise traveling through a gap between the penetrating member and the pass-through opening. | 05-12-2016 |
20160159295 | HOOD INSULATOR INCLUDING A NON-WOVEN FABRIC AND A FINE RESONANCE LAYER AND A METHOD OF MANUFACTURING THE SAME - A hood insulator including a non-woven fabric and a fine resonance layer comprises a porous substrate and a skin material disposed on a surface of the porous substrate, wherein the skin material comprises the non-woven fabric and the fine resonance layer, the fine resonance layer includes a plurality of perforations, and the fine resonance layer is disposed on the non-woven fabric. | 06-09-2016 |
20160171961 | MULTILAYER INTERLAYER HAVING SOUND DAMPING PROPERTIES OVER A BROAD TEMPERATURE RANGE | 06-16-2016 |
20160201317 | POST BOND PERFORATION OF A SEPTUM IN AN ACOUSTIC PANEL | 07-14-2016 |
20160201318 | Structures Formed With Sheet Material Configured With At Least One Sound Absorbing Layer | 07-14-2016 |
20160375659 | LAMINATED GLAZING FOR USE AS A HEAD-UP DISPLAY SCREEN - A laminated glazing used as a head-up display screen includes two sheets of glass and a viscoelastic plastic interlayer arranged between the sheets of glass. The interlayer includes at least one layer made of viscoelastic plastic with vibro-acoustic damping properties. The interlayer has a cross section that decreases in a wedge shape from the top to the bottom of the glazing. A resonant frequency f | 12-29-2016 |
20160379616 | ACOUSTIC ABSORBER AND USE OF SAID TYPE OF ACOUSTIC ABSORBER - The invention relates to an acoustic absorber comprising a support ( | 12-29-2016 |
20190147842 | A SOUND DAMPING DEVICE FOR A DUCT OR CHAMBER | 05-16-2019 |
20190147843 | METHOD FOR THE MANUFACTURE OF VIBRATION DAMPING AND/OR SOUND ATTENUATING MATERIALS | 05-16-2019 |
20220134968 | Polyamide Nonwovens in Sound Absorbing Multi-Layer Composites - A sound absorbing multi-layer composite for a vehicle that reduces sounds along an acoustic path is configured with a non-foam polymeric layer and a face layer for dissipating sound energy. Also, the face layer may be made of a nonwoven polymer comprising at least 60% of a polyamide containing an aliphatic diamine having 6 or more carbon atoms and an aliphatic diacid having 6 or more carbon atoms. The weighted overall average fiber diameter of the composite is from 2 microns to 25 microns. | 05-05-2022 |
20220139365 | SYSTEMS AND METHODS FOR MANUFACTURING ACOUSTIC PANELS - The present disclosure relates to methods of manufacturing an acoustic absorption system. The acoustic absorption system can include a curtain that includes one or more insulating or acoustic absorption sheets. The manufacturing method uses press welding to seal the insulating sheets between a first layer of material and a second layer of material. Each insulating sheets is disposed within a corresponding compartment of the acoustic absorption system and an entire perimeter of each compartment can be sealed simultaneously, wherein the seals form a plurality of panels. | 05-05-2022 |