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8336671 Soundproofing cover and method of manufacturing same  
A soundproofing cover that has a sufficiently high soundproofing performance and that allows another member to be reliably attached to the soundproofing cover with a screw-fastening structure is...
8340337 Loudspeaker module  
A loudspeaker module includes a hollow main body, two rotatable connecting portions, and two loudspeakers. The hollow main body includes two opposite sidewalls. Each of the opposite sidewall...
8336670 Microelectromechanical system testing device  
The invention provides a microelectromechanical system testing device, comprising an acoustic chamber having two opposing walls; a sound source for generating sound within the acoustic chamber at a...
8336673 Muffler, muffler insert, and methods and apparatus for making  
A fiberglass-binder insert is made by fabricating a shape-constant, cured fiberglass-binder mixture, into a shape-constant insert core, and shrink-wrapping the core while leaving exposed any bore...
8336301 Exhaust gas treatment unit  
The present invention relates to an exhaust gas treatment unit for an exhaust system of a combustion engine, in particular of a motor vehicle, includes a housing, a plurality of exhaust gas...
8336672 Air treatment and sound reduction system  
A device for reducing sound from an air treatment unit includes, in one embodiment, an air treatment system, including a wall mount HVAC unit with a supply air opening and a return air opening. A...
8336804 Aircraft cabin panel with core recesses for acoustic absorption  
An aircraft cabin panel for acoustic absorption in an interior space includes a core layer, a first cover layer and a second cover layer. The first cover layer includes a space-enclosing first...
8340342 Diaphragm for speaker, speaker using the diaphragm, electronic device using the speaker, and speaker-mounted device  
A speaker diaphragm containing resin and carbonized bamboo material with a large degree of flexibility in setting physical properties, moisture-proof reliability and strength secured, superior...
8337976 Abuse-resistant cast acoustical ceiling tile having an excellent sound absorption value  
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...
8333261 Compact subwoofer cabinet  
A durable, high performance, compact subwoofer speaker cabinet having a first elongate speaker tube attached to at least a second elongate tube. The at least a second elongate tube is attached to...
8333260 Deep insertion vented earpiece system  
A deep insertion vented earpiece system is described including resilient earpieces shaped to a wearer's ear canal for a conformal fit. A receptacle is provided within the outer surface of each...
8333718 Weighted bioacoustic sensor and method of using same  
A sensor for sensing bioacoustic energy includes a housing comprising an interfacing portion configured to establish coupling with a body part during use. The sensor includes a transducer element...
8331604 Electro-acoustic conversion apparatus  
According to one embodiment, A microphone-earphone includes a speaker connected to an acoustic device configured to measure acoustic characteristics of a listener's external auditory canal, and...
8328532 Compressor muffler  
A compressor has first and second enmeshed rotors rotating about first and second axes to pump refrigerant to a discharge plenum. The compressor includes a muffler system comprising a sound...
8327975 Acoustic silencer  
A resonator is disclosed which includes: a sleeve insert and an outer duct sealingly coupled to the sleeve insert. The sleeve insert has a wall with a first aperture in the wall at a first axial...
8327974 Sound enhancing apparatus  
A sound enhancer for use with a speaker assembly, comprising a sound manifold forming an enclosure having upper and lower hollow interior portions, the enclosure defining an interior zone within an...
8327977 Floor covering  
A floor covering having slip-resistance and sound attenuation properties, particularly for reducing levels of sound resulting from high impact interactions. The floor covering includes at least a...
8328731 Method and system for reconstructing the three-dimensional shape of the surface of at least a portion of an ear canal and/or of a concha  
The method for reconstructing the three-dimensional shape of the surface (14) of at least a portion of an ear canal (18) and/or of a concha comprises—for each of a multitude of points (12) on s...
8331577 Electronic device having active noise control with an external sensor  
An electronic device includes an enclosure for the electronic device and a duct extending from an interior to an exterior of the enclosure to exhaust airflow from the enclosure. The electronic...
8331198 Gas-filled bubble sound source  
A sound source comprises a bubble configured to be filled with a gas, an actuator configured to perturb the gas within the bubble, and a processing circuit configured to provide a control signal to...
8327976 Insulation design for thermal and acoustic insulation of an aircraft  
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...
8327973 Foam compositions with enhanced sound attenuation  
Disclosed are foam compositions with enhanced sound attenuation characteristics for use in earpieces, for example, user-disposable foam members such as foam tips for sound control devices including...
8323001 Hermetic compressor  
A compression element is provided with a block, a piston, a valve plate arranged in an opening end of a compression chamber and forming a suction hole, a suction valve, a suction muffler forming a...
8322479 Covering for motorcycle exhaust tube  
A covering for a motorcycle exhaust tube is employed in a V-banked combustion engine having a drive output shaft, extending in a direction widthwise of a motorcycle body structure, and front and...
8322487 Acoustically coupled non-woven composite  
An acoustically coupled non-woven composite containing a non-woven layer and a thermoplastic film. The non-woven layer contains a plurality of binder fibers and a plurality of bulking fibers and...
8322486 Intake sound generation apparatus for internal combustion engine  
An intake sound generation apparatus for an internal combustion engine, including an introduction duct connected to an intake passage of an intake system of the engine, a vibration member including...
8322134 Sliding fit, pipe arrangement and exhaust gas treatment device  
The present invention relates to a sliding fit for the axially movable bearing of a thermally loaded pipe on a component, in particular on an exhaust system of an internal combustion engine, having...
8322485 Systems and methods for reduction of noise during sleep  
A noise reduction system for attachment to a pillow having a top surface is disclosed, wherein a head of a user can be configured to be placed on the top surface of the pillow. The system includes...
8316986 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...
8317489 Refrigerant compressor  
A refrigerant compressor that includes a compressor housing enclosing an outlet chamber and an outlet passage leading from the outlet chamber to an external high pressure connection, such that the...
8316985 Methods and devices for sound abatement of an abdominal stoma  
The present invention provides methods and devices for the abatement of noise emanating from surgically created abdominal stomas. In one embodiment, the present invention provides a sound abatement...
8316639 Internal combustion engine, vehicle, marine vessel, and exhaust gas cleaning method for internal combustion engine  
An internal combustion engine capable of improving cleaning efficiency by preventing an increase in the temperature of the exhaust gas to lessen the deterioration of the catalyst. The internal...
8316987 Muffling structure of vent pipe and muffling structure of case  
The present invention aims to provide a muffling structure of a vent pipe and a muffling structure of a case, which is capable of muffling in a wide frequency range and preventing vent resistance...
8320604 Composite loudspeaker cone  
Composite loudspeaker cones that include an interstitial layer of material having a core density below 600 kg/m3 and a Young's modulus greater than 0.2 GPa, such as balsa wood, interposed between a...
8320597 Acoustic dock for portable electronic device  
An accessory for a portable electronic device having a speaker uses an acoustic wave guide to passively amplify and direct the output of the device's speaker. The accessory has a housing with a...
8316813 Engine assembly having variable intake air tuning device and tuning method  
An engine intake air tuning assembly may include a housing assembly and an air flow control member. The housing assembly may include an air inlet, an air outlet, and a body portion extending...
8316713 Scanning near field ultrasound holography  
A high spatial resolution phase-sensitive technique employs a scanning near field ultrasound holography (SNFUH) methodology for imaging elastic as well as viscoelastic variations across a sample...
8312961 Soot preventing type tail trim  
A soot preventing type tail trim may include a tail pipe discharging exhaust gas, and a body enclosing an outer circumference of the tail pipe with a predetermined space therebetween, such that...
8315417 Shippable speaker box  
A speaker box, or enclosure, and kit with five panels connected by flexible couplings is shipped in a stack of four of the five panels, plus two side panels. The flexible couplings may be provided...
8312963 Sound absorbing skin material and sound absorbing material utilizing the same  
A lightweight sound absorbing surface material, having an excellent sound absorbing property and moldability, and a sound absorbing material using the sound absorbing surface material, are provided...
8312713 Internal combustion engine, vehicle, marine vessel, and exhausting method for internal combustion engine  
An internal combustion engine includes a structure that increases the velocity of exhaust gas. The internal combustion engine includes a branch section arranged to branch a shock wave propagating...
8312962 Sound absorber having helical fixtures  
A sound absorber comprises an elongated gas channel, through which a flowing gas passes in operation of the sound absorber; and at least one helical fixture mounted in a longitudinal section of the...
8312960 Occlusion effect mitigation and sound isolation device for orifice inserted systems  
Methods and devices for sound isolation are provided. A sound isolation device includes an expandable element and an insertion element. The expandable element is operatively attached to the...
8307946 Firearm suppressor with multiple gas flow paths  
A firearm suppressor for mounting on a firearm to suppress sound emanating from the firearm when fired may comprise a housing defining an interior and a baffle insert positioned in the interior of...
8307944 Muffler  
A muffler (1) for an exhaust system (2) of an internal combustion engine, especially of a motor vehicle, with a muffler housing (3), which encloses a housing interior space (5), and with at least...
8307948 Silencer device for a hair dryer  
A silencer device for a hair dryer comprises a container structure (2) exhibiting a plurality of inlet openings (8), an outlet opening (9) and a conduit (10) connecting the inlet (8) and outlet (9)...
8307950 Sound barrier wall  
A monolithically fabricated sound absorbing structural precast concrete noise barrier panel comprising a sound absorbing layer of specialized raw materials. The raw materials include wood particles...
8307943 High pressure drop muffling system  
A system for venting a high-pressure flow stream is disclosed, the system comprising a device having a plurality of orifice plates, each orifice plate having a plurality of orifices, wherein the...
8307945 Gas-turbine exhaust cone  
A gas-turbine exhaust cone includes a cone shaped outside cone 1 closed in a flow direction, an inside cone 2 arranged in the outside cone 1 over at least part of the length of the exhaust cone,...
8310756 Window image projection screen  
A window image projection screen includes a transparent case, including a transparent front element and a transparent rear element. A thin inner space formed between the front and rear elements is...