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7610810 |
Methods for producing acoustic sources
Embodiments include an acoustic source for use in a hemi-anechoic chamber comprising a source assembly and a waveguide assembly for producing sound outside of a measurement hemisphere and...
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7556122 |
Upward-exhausting corner horn enclosure
A low frequency exponential bass horn enclosure suitable for use in a front-loaded or rear-loaded configuration, intended for corner placement, with driver access from the back. The unitary horn...
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7519195 |
Sound system for industrial tool chests
A sound system for industrial tool chests modifies a tool chest with drawers to provide sound and music to technicians at work in a shop. The sound system has a power supply and electronics mounted...
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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,...
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7445082 |
Noise suppressing device and installation structure of same
A noise suppressing device attachable to a wall within a liquid container can lessen and absorb noise generated by a liquid as it moves within the container. The device has a main plate body with...
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7441630 |
Multi-driver speaker system
A speaker unit includes first and second drivers carried by first and second enclosures. A first linkage supports the second driver enclosure relative to the first driver enclosure and provides at...
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7422088 |
Blocking devices for hollow structures
A blocking device for mounting within a space defined within a hollow structure includes a holder and an expandable member. The holder is adapted to be mounted within the space. The expandable...
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7408842 |
Sonar dome
The Invention is a reinforced plastic sonar dome having a low acoustical insertion loss combined with sufficient mechanical strength. Acoustical and structural fibers are stochastically mixed and...
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7379299 |
Noiseproofed and ventilated enclosure for electronics equipment
A system and method are disclosed for enclosing electronic equipment in a noiseproofed and ventilated enclosure. This includes supplying air to an enclosure and removing air from the enclosure...
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7379298 |
Noise proofed ventilated air intake chamber for electronics equipment enclosure
A system and method are disclosed for enclosing electronic equipment in a noiseproofed and ventilated enclosure. This includes supplying air to an enclosure and removing air from the enclosure...
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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...
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7320520 |
Portable multimedia projection system
A portable multimedia projection system includes a portable housing, a DVD player, a channel tuner, an image projection device, a controller and a remote control receiver. The image projection...
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7296653 |
Sound control apparatus
A sound controlling apparatus adapted for combination with a speaker unit, comprising a stand configured to support the speaker unit, a reflecting panel or panels associated with the stand to...
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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...
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7261180 |
Rigging system for speaker cabinets
A rigging system includes a lever arm permitting all speakers supported by the speaker whose rigging is adjusted to be angularly reoriented to focus the system, even out the coverage and fine tune...
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7255196 |
Windshield and sound-barrier for seismic sensors
A system and method for reducing acoustic, wind or other background noise that may interfere with sensing of a seismic signal is provided. More specifically, a shield is provided to enclose a...
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7252175 |
Speaker apparatus and manufacturing method of speaker apparatus
A speaker apparatus is a bass-reflex type woofer used in a speaker system, and includes a body portion for housing a speaker unit and a bass-reflex port mounted and fixed in the body portion....
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7161801 |
Commutate silencer of computer system
A commutate silencer of a computer system is described. The commutate silencer of the computer system is installed at the back end of the computer system, and comprises a shield device, a commutate...
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7159691 |
Casing for leaf blower
Conventional leaf blowers have a supporting frame to where the different components are attached. In order to reduce the noise from the tool and protect some of the components are they provided...
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RE39330 |
Speaker system and a method for improving sound quality thereof
A speaker system suppresses standing waves generated in the system and reproduces clear and dynamic bass sound. The system includes a cabinet formed of acoustic insulation walls, and at least one...
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7039210 |
Briefcase or carrying case with integrated loudspeaker system
Briefcase respectively carrying case for electronic devices or documents having a housing comprising a storage compartment arranged in the housing for storing at least one paper document,...
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6971474 |
Air guiding element, especially an air guiding channel for a motor vehicle
An air conduction element ( 1 ), particularly an air conduction channel for a motor vehicle, having a reverberant channel body ( 2 ) manufactured from plastic, which has at least one wall region...
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6964318 |
Portable information terminal device
A portable information terminal device has a plurality of casings providing a front surface and a rear surface, respectively. The casings have walls defining spaces in which speakers are housed and...
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6957715 |
Garden speaker
A sound producing rock having a matching body and a cap such that the cap is supported above the body in a spaced relationship to give the illusion that the cap and body are a monolithic structure....
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6896097 |
Mounting structure of speaker for vehicle
A speaker box is covered with a buffer material exclusive of a portion where an acoustic output is derived from a speaker unit. The speaker box covered with the buffer material is attached to the...
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6896095 |
Fan shroud with built in noise reduction
The present invention is a system and method to significantly reduce noise associated with air-moving devices such as an axial flow fan using a fan shroud and barrel combination with built in...
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6866116 |
Structure for quick-assembly cabinet
The present invention relates to an improved structure for quick-assembly cabinet; and comprises a cabinet with a loudspeaker provided thereon. The first side of cabinet is provided with a...
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6834744 |
Speaker system
This invention has been made to provide a speaker system capable of miniaturization and presenting a good sound quality. A speaker 15 is mounted on a printed circuit board 21 arranged inside a...
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6810989 |
System for insulating the sound emanating from a motor/pump unit
In an arrangement comprising a motor/pump unit and a sound-deadening cover, the sound-deadening cover absorbs the airborne noise emitted by the motor/pump unit. On the other hand, the...
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6805219 |
Engine cover
An engine cover has a cover body having a through hole penetrating both sides of the cover body in an area opposed to a resonant space in which resonant sounds are generated. An opening of the...
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6790012 |
Enclosure for an air compressor
An air compressor unit having an enclosure that permits adequate cooling air flow, and reduces the amount of noise that emanates from the air compressor unit. The enclosure has a partition that...
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6769509 |
Pole speaker
A speaker assembly is provided for enclosure within a structural pole. The speaker assembly includes a sub-plate adapted to be affixed adjacent to an internal cavity formed in a fixed end of the...
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6760460 |
Speaker system for display
Speaker system for a display including a cover frame integrated type speaker 1 having a cover frame 101 with screw holes 106 for assembly with a rear cover 2 at top and bottom thereof and a...
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6684977 |
Speaker retention assembly for an active noise control system
An air introduction system ( 10 ) provides an active noise control system which includes a speaker assembly ( 28 ) in which the speaker support ring ( 36 ) is mounted to a speaker housing ( 32 )...
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6581720 |
Noise attenuating insulated heat shield
An improved heat shield offers both a thermal insulation and reduced noise transmission for vehicular engine components, including exhaust manifolds, for example. The structure has three layers: an...
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6574344 |
Directional horn speaker system
A directional speaker system includes an enclosure having an inner surface, an outer surface, an open end, and a closed end, a speaker driver directed toward the open end and mounted near the...
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6571908 |
Shielding enclosure
A shielding enclosure, for example an appliance sound enclosure comprises a base, a front shield and a top shield. The base is fixed onto a surface and has a back wall and pair of sidewalls...
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6561311 |
Speaker cabinet
An improved structure of speaker cabinet comprising a housing opened on one side thereof, and comprising a front panel, wherein, a plurality of intermediate speakers can be held firm and get...
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6528708 |
Exterior structure for electronic keyboard instrument
The present invention provides an exterior structure for an electronic keyboard instrument which has excellence in an outward appearance and which can be produced easily without detracting acoustic...
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6513624 |
Loudspeaker enclosure
A modularized loudspeaker enclosure having an open-ended enclosure body, a loudspeaker support at one open end and an end structure at the other end. The enclosure body can be modified to alter the...
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6512831 |
Noise abatement apparatus for appliance cabinet and method for reducing noise generated by an appliance
Apparatus for reducing noise emitted from an appliance having a cabinet that supports at least one component that emits at least one acoustic pressure wave therefrom. In a preferred form, the...
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6504938 |
Dual-chamber loudspeaker
An economical and compact dual-chamber loudspeaker includes a small driver received within a partition extending between, and in acoustical and pneumatic communication with, both a front and a back...
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6481527 |
Methods and apparatus for attenuating noise from a cabinet that houses computer equipment
An apparatus attenuates noise from a cabinet that houses computer equipment. The apparatus includes a frame, a set of positioning members to position the frame relative to the cabinet, and lateral...
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6457554 |
Acoustic absorber for absorbing noises in buildings
An acoustic absorber includes an enclosure having a front opening and having a chamber communicating with the front opening for receiving an acoustic absorbing member which includes a housing...
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6457549 |
Noise-absorbing structure for a cable reel
A cable reel comprises a cable enclosure having a rubbing face, and a flat cable provided on the rubbing face. A noise-absorbing material is then fixed, without using adhesives, on the rubbing face...
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6408979 |
Noise abatement filter for fuel tanks
A fuel tank with a baffle disposed therein is disposed at an intermediate place between the two ends of the tank is provided for preventing noise caused when fuel shifts in the fuel tank from one...
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6320971 |
Speaker system and a method for improving sound quality thereof
A speaker system suppresses standing waves generated in the system and reproduces clear and dynamic bass sound. The system includes a cabinet formed of acoustic isolation walls, and at least one...
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6278789 |
Frequency selective acoustic waveguide damping
An acoustic waveguide loudspeaker system has an electroacoustical transducer having a vibratile surface. An acoustic waveguide has a first end open and a second end adjacent to the vibratile...
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6236575 |
Reduced-noise relay
A reduced-noise relay has an inside housing and an outside housing. Inside terminals are connected to outside terminals via stranded conductors. An additional intermediate cap of elastomer is...
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6215655 |
Drive-in ordering apparatus
An apparatus for protecting equipment in an outdoor communication structure from adverse weather conditions, vibration, and vandalism includes a housing that possesses hidden lip door edges and is...
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