Abstract: A panel member is provided in front of a seat in a vehicle cabin of a vehicle at a height such that knees of an occupant who moves forward from the seat come into contact with the panel member. The panel member includes a cover member and a reinforcement member. The cover member defines a surface of the panel member. The reinforcement member is provided behind the cover member. The reinforcement member includes an upper part in an up-down direction of the vehicle and a lower part other than the upper part. The upper part is provided with a grid-shaped rib unit extending over an overall width of the reinforcement member in a vehicle width direction of the vehicle. The lower part is provided with a grid-shaped rib unit in a region excluding a central part of the reinforcement member in the vehicle width direction.

Abstract: A panel member is provided in front of a seat of a vehicle at a height such that knees of an occupant who moves forward from the seat come into contact with therewith. The panel member includes a cover member defining a surface thereof and a reinforcement member attached to a back side of the cover member over an entire region thereof. The reinforcement member includes an outer part, a central part, and an inner part in a vehicle width direction. The outer part is provided with a first grid-shaped rib unit. The inner part is provided with a second grid-shaped rib unit that expands in the vehicle width direction more easily than the first grid-shaped rib unit. The central part is provided with no rib unit, and is provided with a coupling member coupling the first and second rib units.

Abstract: A soft boundary structure is implemented using a resonator structure capable of receiving sound or vibration, establishing resonance coupled with received sound or vibration, and creating a reflection with a pi phase factor. A soft boundary is located on or closely adjacent the resonator structure. The soft boundary cooperates with the resonator structure to attenuate the sound or vibration.

Abstract: An acoustic absorption structure includes: a porous layer in contact with a medium through which the sound waves travel, a cellular layer including a plurality of cells, which has at least one exterior annular canal open towards the porous layer, and a reflective layer. An aircraft propulsion system having at least one such acoustic absorption structure is also described.

Abstract: An acoustic insert comprises a sleeve and a number of wave-shaped passageways within the sleeve. A contour of the number of wave-shaped passageways is selected to provide a desired level of attenuation for a frequency of sound waves entering the sleeve.

Abstract: A simulated brick includes a polymeric core member (20), a mesh layer (30) adhered to the core member, a basecoat layer (43) covering an entirety of the mesh layer, and a finish layer (46) covering an entirety of the basecoat layer. The core member, the mesh layer, the basecoat layer, and the finish layer together define a brick profile portion (11) having first and second lateral sides extending to a planar outer surface to define a first thickness, and an offset portion (12) extending from the first lateral side of the brick profile portion to a lateral end surface and having an outer surface defining a second thickness smaller than the first thickness, the brick profile portion and the offset portion together defining a planar rectangular base surface (16) extending from the second lateral side of the brick profile portion to the lateral end surface of the offset portion.

Abstract: An insulating container can be configured to retain a volume of liquid, and include a first inner wall having a first end having an opening extending into an internal reservoir, and a second outer wall forming an outer shell. The second outer wall can include a second end configured to support the container on a surface. The second outer wall can include a dimple, and the dimple can include a circular base and an inner portion converging to an hole extending into the second outer wall. The hole can be sealed by a resin, and the circular base can be covered by disc formed of the material. Alternatively, a cap can cover the dimple, and a weld can connect the cap to the second outer wall. The container can also include a sealed vacuum cavity forming an insulated double-wall structure between the first inner wall and the second outer wall.

Abstract: Provided is a soundproofing structure including: a plate-like member which has a plurality of through-holes passing therethrough in a thickness direction, in which in a case where an average opening diameter of the through-holes is 0.1 ?m or greater and less than 100 ?m, and in a case where the average opening diameter of the through-holes is set as phi (?m) and a thickness of the plate-like member is set as t (?m), an average opening ratio rho of the through-holes is greater than 0 and less than 1 and falls in a range where a center is rho_center=(2+0.25×t)×phi?1.6, a lower limit is rho_center?(0.052×(phi/30)?2), and an upper limit is rho_center+(0.795×(phi/30)?2).

Abstract: An insulation system includes roof sheathing panels, spaced apart structural members, a first insulation material, and a second insulation material. The first insulation material is disposed between pairs of the spaced apart structural members. The second insulation material is disposed across the spaced apart structural members and the first insulation material, such that both the spaced apart structural members and the first insulation material are covered by the second insulation material.

Abstract: This invention provides acoustical building panels and methods for imparting the acoustical property to wallboard with help of a compliant coating.

Abstract: A cargo pallet made of synthetic resin includes: a top plate and a bottom plate, each plate constituted by bonded stacked synthetic-resin boards cut into a specified shape and size; and spacers bonded between the top plate and the bottom plate which are arranged in parallel and separated by the spacers. Each board is constituted by two sheets with an inner cavity layer interposed between the two sheets. In an embodiment, ribs connecting the two sheets of one board are aligned in parallel in a first direction, and ribs connecting the two sheets of another board stacked on the one board are aligned in parallel in a second direction which is perpendicular to the first direction. The spacers are elastic spacers made of synthetic resin and having spring elasticity in a height direction.

Abstract: The present invention is directed to ceiling panels formed from a porous scrim that is coupled to an acoustical substrate using a scrim attachment system that includes an adhesive.

Abstract: A formulation for an acoustically transparent coating for use on an acoustical substrate comprising a water dispersible binder and relatively large filler particles, and characterized by a high pigment to volume concentration, high viscosity, high shear thinning, and fast drying to enable the formulation to be sprayed in droplets that retain their identity when in mutual contact.

Abstract: A noise suppression apparatus includes a body portion including a plurality of nested channels, each channel of the plurality of nested channels including a first end opening and a second end opening, and a surface portion including each first end opening and each second end opening of each channel.

Abstract: A panel assembly and method of making the same, whereby the panel assembly includes an adhesive located onto one or more edges of a layered honeycomb structure and a mesh material adhered in between the layered honeycomb structure by the adhesive.

Abstract: Provided is a sound absorption sheet comprising: a porous substrate; and a micro-resonance layer having a pattern of a plurality of sound-absorbing holes penetrating both surfaces thereof. Also provided is a sound absorbing soundproofing panel, the exterior surface of which is covered with the sound absorption sheet comprising: the porous substrate; and the micro-resonance layer having a pattern of a plurality of sound-absorbing holes penetrating both surfaces thereof.

Abstract: 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.

Abstract: An upper-body frame for a vehicle includes a roof frame which is made of a carbon fiber composite material, and which forms a perimeter frame of a roof of the vehicle, and has a closed-loop shape. Door frames which are made of carbon fiber composite material, and form respective perimeter frames of door opening parts of a vehicle body, and each of which has an upper part that is connected to a corresponding side part of the roof frame. A windshield frame is made of a carbon fiber composite material and forms a perimeter frame of a windshield opening part of the vehicle. The windshield frame has an upper part which is connected to a front part of the roof frame, and side parts which is connected to respective front parts of the door frames.

Abstract: Two sheets of nonwoven fabric with the same shape and size each including a rectangular body 11a and a funnel-shaped projection 11b projecting from one side of the body 11a are stacked, and bonded together by heat welding at each side of the body 11a except the projection 11b and both sides of the projection 11b. Joint portions 13a, 13b, 13c, and 13d projecting inward from a joint 13 are located on three sides and four corners of the body 11a except the side provided with the projection 11b, and project to depths at which the joints do not interfere insertion of a nozzle 16 into a center portion of the bag. The nozzle 16 is inserted through an opening 15 of the projection 11b, and the bag is filled with a granular elastic material 12. Then, the projection 11b is removed, and the opening is closed.

Abstract: 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.

Abstract: 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.

Abstract: A sound absorbent barrier has a sound absorbent layer disposed between a porous first cover and a second cover. The barrier also has a waterproof sound-permeable membrane between the first cover and the sound absorbent layer. The sound absorbent layer is thus protected from damage by the first and second covers and water ingress is prevented by the sound permeable membrane. The second cover may be non-porous to reflect sound waves which have passed through the sound absorbent layer back through the sound absorbent layer. Alternatively, the second cover may be porous to enable absorption of sound from two directions.

Abstract: A multilayered acoustic panel (1) including: a substantially air impermeable outer membrane layer (3); an underlying second portion bonded to the membrane layer (3), the second portion including an intermediate layer (5); and an inner layer (7) underlying the second portion, the inner layer (7) having a plurality of apertures (6) therein, said apertures (6) being covered by the intermediate layer (5) of the second portion, wherein the membrane layer (3) and second portion are not bonded together where the membrane layer (3) overlies the apertures (6) such that those portions of the membrane layer (3) which overlie the apertures (6) are free to vibrate independently of the second portion in response to sound waves incident on the membrane layer (3).

Abstract: 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.

Abstract: Provided is a cover member (7) such as chain cover member for engines, configured to reduce significantly its own vibrations and noises generated or transmitted therefrom compared to other conventional cover members. On its central portion, the cover member (7) of the present invention is provided with circular compartments (17) each defined by a concave surface facing outward and a convex surface facing inward. At least, the concave surfaces facing outward jointly define a continuous curved surface. Therefore, the flat surfaces (flat portions) on the cover member (7) decrease, thereby reducing sound emission, and thus noises from the cover member (7). In addition, when the cover member (7) of the present invention has at least three circular compartments (17), in each three circular compartments (17) adjoining to each other, the three circular compartments (17) are arranged in a triangular pattern, and each one of them circumscribe the other two circular compartments (17).

Abstract: The invention relates to a sound insulating element for the ceiling area of a building, in particular for rooms subject to increased humidity such as underground parking, and basement rooms, which sound insulating element consists of an insulation element (2) made from mineral fibers bound with a binding agent and having two mutually spaced large surfaces extending parallel to each other, and of a coating (5) from a hydraulically and/or chemically set mass, wherein the coating (5) is connected to the insulation element (2), whereby the coating (5) to be oriented towards the room includes an array of openings (7) forming a regular hole pattern and penetrating the coating (5) as far as to the insulation element (2). The invention moreover relates to a process for producing said sound insulating element.

Abstract: A sound-transmitting membrane (1) is provided that allows passage of sounds and prevents passage of foreign matters, the sound-transmitting membrane (1) including a supporting member (12) and a resin porous membrane (11) layered on the supporting member (12) and containing polytetrafluoroethylene as a main component. The supporting member (12) is a nonwoven fabric containing an elastomer. Since the supporting member (12) is a nonwoven fabric containing an elastomer, the insertion loss of the sound-transmitting membrane can be reduced for sounds of 3000 Hz.

Abstract: A panel (1) including a substantially air impermeable membrane layer (3) and a layer (5) having apertures (6) therein, wherein each portion of the membrane layer (3) which overlies an aperture (6) defines a diaphragm (9) which is able to vibrate in response to sound waves incident on the membrane layer (3) and thereby absorb at least part of the sound waves' energy, at least some of the apertures (6) being arranged in clusters (11) whereby the greatest distance between adjacent apertures within a cluster (11) is less than the distance between (i) any one of the apertures (6) within the cluster (11) and (ii) any aperture (6) outside of the cluster (11), each region of the panel (1) defined by an outer periphery of a cluster (11) forming a resonance absorber (13) which is able to vibrate in response to sound waves and thereby absorb at least part of the sound waves energy, wherein at least one resonance absorber (13) is able to provide sound absorption at a frequency which is different to the frequency of reson

Abstract: 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.

Abstract: Provided is a waterproof sound-transmitting membrane 1 including: a solid resin film 2 having a plurality of through holes 21 formed therein; and a treatment layer 3 having water repellency and formed on at least one of two surfaces of the resin film 2 that are opposite to each other in the thickness direction. The treatment layer 3 has openings 31 at positions corresponding to the through holes 21. The air permeability of the waterproof sound-transmitting membrane 1 is 100 seconds/100 mL or less in terms of Gurley number.

Abstract: A sound barrier membrane comprises of a decoupling layer, a barrier layer and a dampening layer. The membrane also provides crack isolation, and acts as a vapor barrier. Numerous materials are disclosed which can be used to create these layers. Methods for assembly of the sound barrier membrane are also disclosed.

Abstract: A sound barrier membrane comprises of a decoupling layer, a barrier layer and a dampening layer. The membrane also provides crack isolation, and acts as a vapor barrier. Numerous materials are disclosed which can be used to create these layers. Methods for assembly of the sound barrier membrane are also disclosed.

Abstract: A multilayer sound absorbing structure, comprising a first microperforated film, a mesh layer and a second microperforated film disposed in this order is provided.

Abstract: A multilayer sound absorbing sheet including a film layer having through-micro bores and apertures, and a fibrous material layer disposed on the film layer is provided. A method of absorbing sound including providing the multilayer sound absorbing sheet of the present disclosure and positioning the multilayer sound absorbing sheet between an acoustic source and a sound-reflecting surface is also provided.

Abstract: A multilayered acoustic panel (1) including: a substantially air impermeable outer membrane layer (3); an underlying second portion bonded to the membrane layer (3), the second portion including an intermediate layer (5); and an inner layer (7) underlying the second portion, the inner layer (7) having a plurality of apertures (6) therein, said apertures (6) being covered by the intermediate layer (5) of the second portion, wherein the membrane layer (3) and second portion are not bonded together where the membrane layer (3) overlies the apertures (6) such that those portions of the membrane layer (3) which overlie the apertures (6) are free to vibrate independently of the second portion in response to sound waves incident on the membrane layer (3).

Abstract: A sound absorber is formed by covering the opening of a housing with a vibration member having a flat shape or a film shape so as to define an air layer therebetween. The sound absorber is attached to the wall of a room such that the vibration member is positioned opposite to the wall with a prescribed space therebetween. Sound generated in the room particularly in low frequencies enters into the space between the vibration member and the wall so as to cause vibration of the vibration member due to the pressure difference between the sound pressure applied to the space and the internal pressure of the air layer, thus consuming energy of sound waves. Thus, it is possible to efficiently absorb low-frequency sound with a reduced thickness of the air layer.

Abstract: An abuse-resistant, cast acoustical ceiling tile having improved impact resistance and excellent sound absorption values. The ceiling tiles have aggregate particles applied to the surface of a wet pulp in the casting process and the particles are embedded in the pulp by compression with a roll and/or smooth plates. The aggregate particles have an average particle diameter of at least about 1,000 microns. The ceiling tiles have excellent sound absorption properties with a noise reduction coefficient (NRC) of at least about 0.50. Calcium carbonate is the preferred aggregate particle material.

Abstract: 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.

Abstract: A multilayer sound absorbing sheet including a film layer having through-micro bores and apertures, and a fibrous material layer disposed on the film layer is provided. A method of absorbing sound including providing the multilayer sound absorbing sheet of the present disclosure and positioning the multilayer sound absorbing sheet between an acoustic source and a sound-reflecting surface is also provided.

Abstract: A multilayer sound absorbing structure, comprising a first microperforated film, a mesh layer and a second microperforated film disposed in this order is provided.

Abstract: A sound absorption element for means of transport, in particular for aircraft, comprising at least one sound absorption panel arranged on a base panel with the base panel comprising a multitude of recesses, in particular a hole grid or the like, for the transmission of sound. According to the invention, the sound absorption panels are each framed by a frame, wherein on the at least one frame at least in some sections a transition profile, in particular to prevent fatigue fractures due to stepwise changes of rigidity between the at least one frame and the base panel is arranged. Due to the base panel comprising a multitude of recesses, in particular comprising a hole grid, in connection with the sound absorption panels an air-permeable sound absorption element can be achieved.

Abstract: A flooring material comprises a core layer of resilient granular agglomerate and a membrane that envelops the aforesaid core layer. In a preferred way, the material is in the form of modules, such as strips or tiles and the membrane forms, on at least one side of the modules, a selvage, which can be applied in a relationship of overlapping with at least one adjacent module.

Abstract: Multilayer articles having acoustical absorbance properties are disclosed. Methods of making and using the multilayer articles are also disclosed.

Abstract: The present invention relates to a liquid resin intended more particularly for the sizing of mineral fibers which exhibits a dilutability in water at 20° C. at least equal to 1 000% and a level of free formaldehyde preferably of less than 0.4%, expressed as total weight of liquid, this resin being characterized in that it is composed essentially of condensates obtained from a phenolic compound, from formaldehyde and from an aminoalcohol according to the Mannich reaction. The invention also relates to a sizing composition including said resin, to the mineral fibers sized by means of this composition and to the products formed from the mineral fibers, in particular for thermal and/or sound insulation.

Abstract: In one embodiment, the sight and sound barriers of this invention have a flexible sheet of lightweight, resilient foam as a core. This core is covered by a fabric or other suitable covering to further enhance the acoustic properties and to make the walls attractive. In this embodiment the core of polyethylene, polystyrene, urethane, or a mosaic thereof, for example, is made flexible with alternating wall and hinge portions. In an alternate preferred embodiment, the barriers or panels are formed with mitered grooves to allow the panel to be bent into larger degree corners, such as 90 degrees in one direction or 180 degrees in the opposite direction.

Abstract: A new acoustic insulating sheet material comprises in laminar assembly a) a primary sound absorbing sheet, and b) a dense porous membrane that i) has an air-flow resistance of about 5000 rayls or less and ii) has an Acoustic Value Ratio as defined herein of at least 3000. Preferably, the membrane is about 200 micrometers or less in thickness, and more preferably is about 150 micrometers or less in thickness. Also, the Acoustic Value Ratio is preferably at least 7,000. The described membrane can also be used alone to acoustically insulate a space, e.g., by mounting it in planar array over an air gap and in position to attenuate noise from a noise source.

Abstract: A laminated barrier is provided that can be easily attached to the frame of a vehicle door. The barrier reduces the passage of water, dust and sound into and through the vehicle door. The barrier is generally flat and includes a channel formed therein that aids in locating a bead of adhesive material, aligned with, but located on an opposite side of the barrier from the channel. The bead of adhesive material bonds the barrier to the door frame of the vehicle. The channel acts as a witness line and can be formed as part of an overall thermoforming step, or more simply by using a single heated die element during a step when the barrier is trimmed.

Abstract: A sound absorptive multilayer composite having an air-impermeable barrier, an air-permeable reinforcing core having an airflow resistance of at least about 100 mks Rayls and a thickness at least about ? the final composite thickness, an air-permeable open cell foam or fibrous pad having an airflow resistance less than about 2000 mks Rayls and a thickness at least about 1/10 the final composite thickness and a semipermeable airflow-resistive membrane having an airflow resistance of about 500 to about 4000 mks Rayls can provide improved acoustic performance. For example, existing vehicular headliner designs may be improved by adding a properly chosen and properly positioned semipermeable airflow-resistive membrane, a properly chosen and properly positioned air-impermeable barrier, or a properly chosen and properly positioned open cell foam layer.

Abstract: An airframe includes a mass barrier layer mounted to a multitude of frame members and adjacent to each of a multitude of foam portions to provide a contiguous layer to seal the foam portions within the respective multitude of frame voids.

Abstract: An acoustic structure that includes a honeycomb having cells in which septum caps are located. The septum caps are formed from sheets of acoustic material and include a resonator portion and a flange portion. The flange portion has an anchoring surface that provides frictional engagement of the septum caps to the honeycomb cells when the caps are inserted into the honeycomb during fabrication of the acoustic structure. An adhesive is applied to the anchoring surface of the septum caps after the caps have been inserted into the honeycomb cells to provide a permanent bond.