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| Number | Title | Issue Date |
| 8167085 | Non-combustible sound-absorbing facing The present invention relates to a non-combustible, sound-absorbing facing (30) having an air flow resistivity of between 80 and 3,000 Rayls and a weight per unit area of between 20 and 1,000 g/m2 and to a laminate (10) comprising the facing... | 05/01/2012 |
| 8151933 | Thermally and acoustically insulative vehicle flooring A vehicle flooring system with improved thermal and acoustic properties is provided that does not unreasonably increase the thickness and weight of the flooring system and does not break down due to repeated exposure to high temperatures and wide ranging temperature... | 04/10/2012 |
| 8136630 | Architectural acoustic device An acoustic device and a method for altering sound. The acoustic device includes an architectural structure having a solid body. The architectural structure is adapted to be mounted on a wall of a room. The solid body has a channel therethrough to define a cavity th... | 03/20/2012 |
| 8091684 | Low mass acoustically enhanced floor carpet system A low mass acoustically enhanced floor carpet system for vehicles. In a first embodiment, the carpet assembly comprising a face layer and an opposite lower fiber mat. The carpet assembly further including a primary backing if the face layer is tufted, a back coating... | 01/10/2012 |
| 8091685 | Sound absorbing structure built into luggage compartment of vehicle A sound absorbing structure is constituted of a vibration plate and a rear air layer and is installed in a luggage compartment or trunk which is separated from a cabin in a vehicle. Sound waves entering into the luggage compartment drive the vibration plate to vibra... | 01/10/2012 |
| 8028799 | Damping device and method for damping sound in cavities of vehicles A damping device and a method of damping a structural element of a vehicle body are disclosed. The damping device generally includes a carrier material, a separating material, and a damping material disposed on the carrier material. The damping material is one of a ... | 10/04/2011 |
| 8028800 | Acoustic damping compositions An acoustic damping composition includes a binder resin including an addition polymer having a carboxylic functional group and a urethane component. The acoustic damping composition has a Mode 1 Damping Parameter of at least 0.45. ... | 10/04/2011 |
| 8025124 | Broadband passive distributed tuned vibration and acoustic absorber for modally dense structures A passive distributed vibration absorber that utilizes multiple discrete mass elements and a viscoelastic layer and that effectively attenuates vibration in modally dense structures excited by a broadband input noise excitation. and is tunable to multiple natural fr... | 09/27/2011 |
| 8011472 | Sound absorbing structure and vehicle component having sound absorbing property A sound absorbing structure is constituted of a housing having a hollow portion and an opening and a vibration member composed of a board or diaphragm. The vibration member is a square-shaped material having elasticity composed of a synthetic resin and is bonded to ... | 09/06/2011 |
| 7980358 | Lightweight, sound-insulating lining for a body part of a motor vehicle, and method for the production thereof The invention relates to a lightweight sound insulating lining (1) for a body component of a motor vehicle, in particular in the form of a lightweight front wall lining, comprising a sound absorbing layer, a sound insulating layer which is directly connected ... | 07/19/2011 |
| 7971683 | Acoustic protective panel for vehicle comprising an impregnated sealing layer An acoustic protective panel for the fitting of a wall of a vehicle, has an upper porous layer, in particular with a felt or remelted flexible foam base, at least one zone of the porous layer being arranged on one sealing layer, the sealing layer being arranged on o... | 07/05/2011 |
| 7789196 | Sound-absorbing material, production method for sound-absorbing material, and sound-absorbing structure Disclosed is a sound-absorbing material, which has a flow resistivity R of 3.3×104 N·s/m4 or more, a Young's modulus E of 1.2×103 to 2.0×104 N/m2, and a loss factor δ of 0.12 or less. The sound-absorbing ma... | 09/07/2010 |
| 7712579 | Floor silencer It is an object of the present invention to provide a floor silencer that has good transport efficiency due to an ability to be transported in a flat state, and can be assembled to a floor panel of a vehicle by folding along a band-like concave portion. The floor si... | 05/11/2010 |
| 7686132 | Porous membrane 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... | 03/30/2010 |
| 7604094 | Acoustic scatterer An acoustic scatterer element (10) incorporates a plurality of convex surfaces (38.1, 38.2) has a plurality of associated curvatures in a corresponding plurality of different directions. A plurality of acoustic scatterer elements of various sizes in a ... | 10/20/2009 |
| 7546900 | Panel assembly for traffic noise barrier wall A panel assembly for a traffic noise barrier wall of the type including opposing slots formed in pairs of vertically-mounted posts is described. The panel assembly includes a sheet, which may be transparent, and a frame disposed along at least a portion of the perim... | 06/16/2009 |
| 7451855 | Acoustic absorbing device An acoustic absorbing device includes a housing having a chamber formed by an outer peripheral wall and a bottom wall, a hood engaged into the housing, an absorbing member engaged into the hood, and a silencer engaged into the absorbing member, the silencer and the ... | 11/18/2008 |
| 7434659 | Acoustic septum cap honeycomb 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... | 10/14/2008 |
| 7431128 | Noise absorbing structure of instrument panel A noise absorbing structure of an instrument panel of a vehicle includes a first noise absorbing panel, provided in the instrument panel disposed in front of a driver seat of the vehicle, a second noise absorbing panel, provided in the instrument panel disposed in f... | 10/07/2008 |
| 7416773 | Sound absorbing body In order to provide a sound-absorbing body which has both a thin thickness and improved sound-absorption characteristics with regard to a low tone range sounds, the sound-absorbing body (1) includes: an organic hybrid sheet (2) constituted from an orga... | 08/26/2008 |
| 7410030 | Soundproofing material for vehicle A soundproofing material for vehicle having a laminated structure comprising two sound absorbing layers and an interlayer interposed therebetween, characterized in that the interlayer is formed by bonding and laminating on the respective side of an air-impermeable f... | 08/12/2008 |
| 7395898 | Sound attenuating structures There is disclosed a sound attenuation panel comprising, a rigid frame divided into a plurality of individual cells, a sheet of a flexible material, and a plurality of weights. Each weight is fixed to the sheet of flexible material such that each cell is provided wi... | 07/08/2008 |
| 7367424 | Eccentric exhaust muffler for use with auxiliary power units A muffler system is provided for use with an auxiliary power unit. In one embodiment, and by way of example only, the system includes an outer can, an annular baffle, and a tube. The outer can has a sidewall including a forward end, an aft end, and a cavity extendin... | 05/06/2008 |
| 7350619 | Auxiliary power unit exhaust duct with muffler incorporating an externally replaceable acoustic liner Methods and apparatus are provided for an exhaust duct having an externally replaceable acoustic liner. The exhaust duct includes a forward section that is configured to be axially coupled with a bulkhead collar on the aircraft, a body section that is coupled to the... | 04/01/2008 |
| 7340865 | Interlocking tile A polymeric interlocking tile for an adhesive-free assemblage with adjacent tiles having substantially similar, but inverted, edge interlocks thereon. The interlocks on each edge of a tile include a row of first and second sets of male-female types of alternating in... | 03/11/2008 |
| 7337875 | High admittance acoustic liner A cooled acoustic liner useful in a fluid handling duct includes a resonator chamber 52 with a neck 56, a face sheet 86, and a coolant plenum 80 residing between the face sheet and the chamber. Coolant bypasses the resonator chamber, rath... | 03/04/2008 |
| 7325656 | Elevator installation with device for noise reduction An elevator installation includes an elevator car that moves in an elevator shaft with shaft doors and which car has at least one car apron arranged parallel to a plane of a shaft wall at a shaft door side. A device for reducing noises generated by the air flow aris... | 02/05/2008 |
| 7323509 | Fire-resistant structural composite material Fire-resistant structural composites are comprised of a phenolic resin system, reinforcing fibers and alumina tri-hydrate. The composites may be formed into structural or load-bearing parts, and are particularly suited for applications requiring high strength and a ... | 01/29/2008 |
| 7322440 | Ultralight trim composite An ultra light, noise reducing composite (1) comprises an acoustically transparent, light weight film (6) between an underlay layer (5) and an air flow resistance layer (4). This composite allows to easily tune the acoustic properties by ... | 01/29/2008 |
| 7320739 | Sound absorptive multilayer composite 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 ⅓ the final composite thickness, an air-permeable open cell foa... | 01/22/2008 |
| 7318498 | Decorative interior sound absorbing panel A multi-layered fiber reinforced thermoplastic sound absorbing panel includes a porous fiber reinforced thermoplastic core layer having a first surface and a second surface, and includes a thermoplastic material and from about 20 weight percent to about 80 weight pe... | 01/15/2008 |
| 7318499 | Noise suppression structure and method of making the same An integrated noise suppression acoustic panel includes a back plate, a face plate, and a bulk foam absorber disposed between the back plate and the face plate. The bulk foam absorber is formed of a thermoset material, such as bismaleimide or phenolic, and is manufa... | 01/15/2008 |
| 7314114 | Flat panel diffuser A device including a membrane having first and second faces; a first substrate disposed on the first face of the membrane and having (i) a plurality of first absorptive regions and (ii) a plurality of first reflective regions formed as wells in a face of the first s... | 01/01/2008 |
| 7314113 | Acoustic absorbers for use with computer cabinet fans and other cooling systems Systems and methods for absorbing acoustic noise generated by computer cabinet cooling fans are described herein. In one embodiment, an acoustic absorber for use with a fan carried by a computer cabinet in a room includes a first acoustic panel spaced apart from a s... | 01/01/2008 |
| 7308965 | Noise abatement wall A noise-absorbing device includes a substantially flat base and embossed and/or hollow elements each including at least one recess. This base reveals with the embossed and/or hollow elements, a configuration exhibiting a fractality zone of between 1 cm and 50 cm, of... | 12/18/2007 |
| 7279214 | Floor covering having a strong noise-reducing properties A floor covering characterized as having a strong noise-reducing properties for the interior trim of means of transport. The floor covering has, on the passenger side, a textile or non-textile surface, acoustically coupled through at least one microperforated sheet ... | 10/09/2007 |
| 7267196 | Method and apparatus for reducing acoustic noise A squeeze film damper reduces acoustic wave transmission by the damping and spring forces produced by squeezing a very thin layer of air trapped between two vibrating plates. The damping effect is most pronounced when the gap between vibrating plates is very small, ... | 09/11/2007 |
| 7264857 | Constructional unit and method for producing a constructional unit of this kind A constructional unit has a frame and a cover. The frame and the cover are formed of materials with different coefficients of thermal expansion. A plurality of spacers is arranged between the frame and the cover and defines a gap therebetween. An adhesive is provide... | 09/04/2007 |
| 7261182 | Wide band sound diffuser with self regulated low frequency absorption and methods of mounting The present invention relates to an acoustical diffuser device, said apparatus comprising the main body from FIG. 1 and two lateral rigid supports (5), glued to the inside of the said diffuser which lateral supports are received, like a drawer, by two ... | 08/28/2007 |
| 7249653 | Acoustic attenuation materials Acoustic attenuation materials are described that comprise outer layers of a stiff material sandwiching a relatively soft elastic material therebetween, with means such as spheres, discs or wire mesh being provided within the elastic material for generating local me... | 07/31/2007 |
