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8453793 Accoustic fabrication system  
The invention describes a method for making a composite panel and the product made by the method. The composite panel is made from a soft septum treated with a composition containing silane and an...
8453792 Exhaust system and corresponding support structure  
An exhaust system (3) of an internal combustion engine (2) is provided in a support structure (1), especially in a motor vehicle (1), with at least one exhaust pipe (8), which guides exhaust gas...
8453788 Implementing dynamic noise elimination with acoustic frame design  
A method, system and computer program product are provided for implementing dynamic noise elimination. A system frame includes a plurality of acoustical sensory devices monitoring the system for...
8453790 Fan coil ceiling unit with closely coupled silencers  
A low-profile, compact fan coil ceiling unit with closely coupled silencers includes a heating and cooling section, a closely coupled inlet silencer, and a closely coupled outlet silencer. The...
8448743 Tire noise reduction device and pneumatic tire provided therewith  
Provided are a tire noise reduction device allowing rapid and reliable puncture-repair of a pneumatic tire provided with an annular sound absorbing member on the inner surface of a tread portion of...
8448744 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 (10), to be positioned between a sheet m├ętal panel of the vehicle bodywork (12) and an inner trimming ...
8452038 Multi-throat acoustic horn for acoustic filtering  
A horn coupled to multiple acoustic transducers includes first and second throat portions and a mixing area integrally formed with the first and second throat portions. The first throat portion has...
8443928 Exhaust tail pipe  
An exhaust tail pipe includes a front outer tube, an inner tube and a rear tail pipe. The inner tube has a plurality of screw holes on one side mating a plurality of apertures formed on a rear...
8443934 Acoustic resistance member and method for making the same  
An acoustic resistance member includes an air-shielding layer which does not allow air to pass through such that acoustic waves do not propagate, and an acoustic resistance layer which allows air...
8443932 Working machine  
A working machine is provided with a revolving upperstructure, working equipment, an engine compartment, a counterweight, a muffler, and an exhaust path for releasing exhaust gas, which has been...
8447043 Piezo element stethoscope  
A stethoscope chest piece has a chest piece housing containing a piezoelectric (piezo) element mounted within a housing. The piezo element converts body signals to an electrical representation that...
8443584 Inlet system for an EGR system  
An embodiment of the present invention takes the form of a system that may recirculate a portion of the exhaust of at least one turbomachine where it may be mixed with the inlet air and re-enter...
8446798 Marine acoustic vibrator having enhanced low-frequency amplitude  
A seismic source includes a flextensional shell defining a longer axis and a shorter axis and at least one driver coupled to the flextensional shell proximate an end of the shorter axis. The...
8444397 Manual selective attenuator  
An attenuating apparatus for use with a positive displacement compressor. The device includes a bore formed in a housing of the compressor, the bore being positioned at an angle to a discharge...
8443931 Noise reduction of supersonic jet engines  
A jet engine adapted for reducing far-field noise levels is disclosed. The jet engine has a plurality of flap assemblies that are disposed around a perimeter of an exhaust port of the jet engine....
8443930 Method and apparatus for a loudspeaker assembly  
A method and apparatus for providing a loudspeaker assembly is provided. In accordance with at least one embodiment, apparatus is provided comprising a ground plane, a loudspeaker driver mounted in...
8443933 Tubular acoustic insulating element  
An exhaust system composed of a plurality of components for an internal combustion engine for connecting to a manifold, the exhaust system includes at least one first section, which is provided...
8443935 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...
8439158 Acoustic resonator and sound chamber  
An acoustic resonator adaptable to a sound chamber is designed to decrease a sound pressure while increasing a particle velocity of medium particles in a low frequency range without increasing the...
8439155 Firearm sound suppressor  
A suppressor for a firearm is provided, wherein the suppressor can be selectively oriented relative to the firearm. The suppressor has an elongate body, a piston assembly and a cam assembly. A...
8439157 Engine  
An object of the present invention is to provide a muffler mounting structure configured to be able to prevent fastening parts from slackening by reducing the thermal conductivity from an exhaust...
8439156 Muffler with controlled pressure release  
A plastic muffler is configured to provide a controlled mode for releasing exhaust gas pressure during an over-pressurization event. The plastic muffler has a plastic casing that includes at least...
8439161 Acoustically tunable sound absorption articles  
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.
8439153 Method and apparatus for a loudspeaker assembly  
The present invention relates to a loudspeaker assembly and a method of assembling a loudspeaker assembly. In one or more embodiments, the invention comprises forming a front baffle comprising a...
8439159 Exhaust muffler for internal combustion engines  
A new and improved muffler for use particularly with internal combustion engines which utilizes a tube assembly composed of a plurality of laterally nested perforated and non-perforated tubes in...
8439154 Air-film vibration damping apparatus for windows  
An improved vibration damping apparatus is provided for use with window structures, including windows used in vehicles, aircraft, and spacecraft. The vibration damping system includes at least two...
8439160 Acoustic suppression systems and related methods  
An acoustic suppression system for absorbing and/or scattering acoustic energy comprising a plurality of acoustic targets in a containment is described, the acoustic targets configured to have...
8441892 Gas-filled bubble seismo-acoustic source  
A sound source includes a tubular resonator configured to be filled with a gas. The exterior of the resonator includes rigid and elastomeric portions. The interior of the resonator includes a first...
8442242 Acoustic reflector  
A speaker assembly is provided with a speaker and a reflector spaced apart from the speaker. The reflector faces the speaker. The reflector has a central region and a plurality of circumferentially...
8442261 Diaphragm including a first vibrating part of a dome shape or flat shape and a second vibrating part of an annular shape and a loudspeaker using the diaphragm  
The present invention provides a dome-shaped diaphragm fabricated based on a film base of polyethylene terephthalate resin film. The diaphragm includes a first vibrating part of a dome shape or a...
8434591 Acoustic barrier  
An acoustic dampening panel comprising: (a) a first layer of expanded polypropylene; (b) a solid layer having a surface weight between 2.4 kilograms per meter squared and 25 kilograms per meter...
8434590 Muffler  
The present invention relates to a muffler (8) for an exhaust system (6) of a combustion engine (1), more preferably of a motor vehicle, with a housing (14) comprising at least one exhaust gas...
8434588 Exhaust device for vehicle internal combustion engine  
In a exhaust device for an vehicle internal combustion engine, an exhaust pipe (20) of an engine (11) branches at a branching point (B) into a downstream-side first branch pipe (32) and a...
8434589 Obstruction device for reducing noise emitted from a blower  
A method and system for reducing or eliminating banding in a rendering device caused by pressure pulsations from a blower. The pressure pulsation frequency resulting from a plurality of pressure...
8434587 Tubular body soundproof cover and covered tubular body  
A purpose is to provide a tubular body soundproof cover and a covered tubular body, for which elastic deformation of the tubular body is unlikely to be inhibited. The tubular body soundproof cover...
8434586 Sound insulation in a refrigerant circuit  
A muffler device for a refrigerant circuit with refrigerant containing refrigerant oil comprises a housing in which an upper muffler chamber and a lower muffler chamber are arranged, whereby the...
8434493 Adjustable mouth shield device  
The adjustable mouth shield device provides an adjustably fitted mouth shield with adjustable headband for secure fit. The adjustable headband is fastened to the padded earpiece. The straight first...
8430200 Speaker apparatus  
A speaker apparatus according to the present invention includes a phase inversion-type enclosure in which a speaker unit and a bass reflex port are installed, the bass reflex port having a tubular...
8430202 Compact high-pressure exhaust muffling devices  
Compact, high-pressure exhaust muffling devices are disclosed. Some example muffling devices may include an inner flow conditioner including an inlet configured to convey a pressurized fluid flow...
8430203 Noise reduction device for turbojet nacelle with mobile chevrons, and associated nacelle  
The invention relates to a turbojet nacelle (1) and to an aeroacoustic noise reduction device for said nacelle, the nacelle comprising a nozzle (10) on the downstream end thereof, said nozzle (10)...
8430201 Speaker enclosure  
The present invention relates to speaker enclosures utilizing the golden ratio geometrically throughout the design to reduce reflections, resonance and phase shifting, and to improve the transient...
8430198 Muffler mounting structure of vehicle and straddle-type four-wheeled vehicle provided with the same  
A muffler mounting structure of a vehicle, particularly a straddle-type four-wheeled vehicle. The muffler mounting structure is provided with a muffler, at least one muffler mounting portion...
8430199 Sound shell  
A performance shell (1) for outdoor music performance including a platform (2) providing a performance area for receiving at least one sound source, the platform combining unitarily with a rear...
8428291 Speaker system with subwoofer  
A speaker system includes an enclosure defining a resonance chamber, a loudspeaker received in the resonance chamber, and a sound wave reflecting member. The enclosure includes a front panel and a...
8428290 Input-panel-equipped portable speaker device  
An input-panel-equipped portable speaker device includes a cabinet shell body configured to enclose an accommodation chamber in a longitudinal direction, and having left and right mounting walls...
8424636 Muffler assembly and process of manufacture  
A muffler assembly including one or more exhaust pipe(s), a polymeric housing carried by at least one of the exhaust pipe(s); a thermal insulating layer lining the housing interior surface and...
8424634 Hearing assistance device  
A device structured to assist the hearing of a user by being removably connected to and disposing a user's ear in an enhanced hearing orientation. One embodiment includes an elongated base, which...
8428284 Loudspeaker with passive low frequency directional control  
A loudspeaker is provided that passively achieves a directional polar response at low frequencies with a high degree of attenuation between the front and the back of the loudspeaker. The...
8424251 Sound Proofing material with improved damping and structural integrity  
Panels for use in building construction (partitions, walls, ceilings, floors or doors) which exhibit improved acoustical sound proofing in multiple specific frequency ranges and also present...
8425749 Microfabricated particle focusing device  
A microfabricated particle focusing device comprises an acoustic portion to preconcentrate particles over large spatial dimensions into particle streams and a dielectrophoretic portion for finer...