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7565950 |
Sound suppression material and method
A sound suppression method includes using a passive noise suppression technology to destructively interfere with a sound wave propagating through a structure at portions of the structure that are...
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7553533 |
High-damping absorbing coating
The present invention relates to an absorbent covering having high damping power, the covering being secured to a structure ( 20 ) and being provided with an absorbent layer ( 10 ) of elastic...
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7484589 |
Apparatus and method for reducing aircraft noise and acoustic fatigue
An apparatus and method is provided for attenuating aerospace engine noise and unsteady pressure fluctuations associated with high velocity exhaust flows. The apparatus and method reduce acoustic...
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7424930 |
Vibratory energy dissipation and isolation with magnetically biased rolling members
A coupling device is interposed between an electronic or electro-acoustic component and a supporting structure for draining, transmitting and dissipating vibratory energy generated within the...
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7355776 |
Acoustic damping material for electro-optic materials
An acoustic damping material for electro-optic material has an adhesive material combined with a ceramic crystalline material such that the acoustic impedance of the combined adhesive material and...
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7328770 |
Strap silencer
There is a noise reduction device for reducing noise from a vibrating strap. There is a securing member including a strip of material having a first surface including hook material and a second...
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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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7036530 |
Energy attenuation device for a fluid-conveying line and method of attenuating energy in such a line
An energy attenuation device for a fluid-conveying line, and a method for attenuating energy in such a line, are provided. The device includes one or more hose sections disposed in the...
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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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6849053 |
Shock wave source with a wave damping coil carrier
A shock wave source has a coil carrier, a coil, having a metallic membrane separated from the coil in insulating fashion for generating shock waves. The coil carrier is formed of a material that...
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6845842 |
Vibration-proofing structure for hollow pipe for vehicle
To make it possible to fit a vibration-proofing member into a hollow pipe, without impairing the appearance and without increasing the number of component parts. A hollow pipe formed by extrusion...
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6837859 |
Shock wave source with a coil carrier having a non-circular contour
A shock wave source has a coil carrier, having a longitudinal axis, a coil and a metallic membrane separated from the coil in insulating fashion for generating shock waves. The coil carrier has a...
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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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6786298 |
Vibration-absorbing structure for support section of a self-vibratory electronic member
A vibration-absorbing structure for support section of a self-vibratory electronic member. The vibration-absorbing structure is integrally made of resilient gum material and has a top face, a...
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6783835 |
Elastomeric damping sheets
A bulk modulus elastomeric element is employed in the present invention. The material from which the invention is fabricated is formed as a sheet, which has a plurality of channels that run...
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6772855 |
Damper for speaker and method of producing the same
A damper for a speaker includes an auxiliary damper 12 impregnated with a thermosetting resin, a laminate film 121 laminated on the auxiliary damper 12 , and a primary damper formed on the...
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6749924 |
Stacked sheet shock absorbing elastomeric device
A stack of sheet elastomers, each having multiple holes therein, dissipates shock forces applied to it. The elastomeric sheets are formed with identical holes each of which have a periphery that is...
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6705427 |
Exhaust system support structure
An exhaust system support structure is provided with a vehicle body bracket, a vibration insulating member and an exhaust bracket. The vehicle body bracket has a base part that is coupled to a...
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6644435 |
Composite sound insulation system for room boundary surfaces
The composite sound insulation system for room boundary surfaces includes a sound-proofing layer (D) in communication with the corresponding floor, wall, or ceiling covering (V) which preferably...
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6638640 |
Multi-layered metal plate with excellent damping capacity
A multi-layered metal plate with excellent damping capacity and particularly, to a multi-layered metal plate with excellent damping capacity and a method for manufacturing it, is less costly since...
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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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6568135 |
Sound absorbing structure
A sound absorbing structure including a sound absorbing member, an air layer, and a resonant sound absorbing structure. The air layer is formed in the rear of the sound absorbing member. The...
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6561312 |
Device for in particular acoustically uncoupled mounting
An arrangement for acoustically uncoupled mounting of slightly vibrating components on an anchoring part has a first sleeve which is adapted to guide through an opening of a component, a mounting...
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6550571 |
Noise reduction structure for cab of working vehicle
A noise reduction structure for a cab of a working vehicle, by which a high degree of noise reduction effectiveness can be surely obtained, is provided. For this purpose, the noise reduction...
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6536555 |
Multilayer acoustic damper for a disc drive
A disc drive top cover incorporates an acoustic damper having alternating constraining layer material and damping layer material. Each constraining material layer is a sheet material having a high...
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6525931 |
Cover for a hard disk drive
The purpose of the present invention is to provide a cover for a hard disk drive which can prevent the outflow of a damping resin material and the loosening of a screw fixing the cover to a...
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6484845 |
Method and system for influencing possible structure-borne sound conductions and possible noise radiations of objects
A method and a system for influencing possible structure-borne sound conductions and possible noise radiations of objects which have at least two at least indirectly mutually adjoining and mutually...
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6478110 |
Vibration excited sound absorber
A vibration excited sound absorber for reducing the sound radiation from a vibrating surface. Each sound absorber has a radiating element which is connected to the vibrating surface by a coupling...
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6397988 |
Pivoting vibration absorber including a torsional spring and pipeline system utilizing same
Vibration absorbers are provided which utilize a torsional spring and a dynamic mass to control vibrations that occur within the structure to which they are attached. Additionally, pipeline systems...
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6373956 |
Method and arrangement for attenuating mechanical resonance in a loudspeaker
The present invention concerns the reduction of vibrations of a loudspeaker enclosure caused by the mechanical vibrations of the dynamic loudspeaker element by virtue of attaching one or more...
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6340068 |
Use of a material with a high internal damping for a component of a sound-emitting machine
A sound generating or emitting machine having a component comprising a material with a high internal damping and tensile strength, the material comprising (1) a metallic base material, and (2) a...
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6321868 |
Watertight apparatus capable of being immersed and including an acoustic transducer
The present invention concerns a watertight apparatus capable of being immersed in a liquid, for example a watertight watch, including a case (1) with an inner chamber (10) communicating with the...
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6283437 |
Foot device
A foot device for supporting electronic equipment thereon comprises a sleeve having an axial through bole, and a plurality of balls one by one in line provided in the hole wherein the bottom and...
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6279679 |
Selectively tuned vibration absorber
A selectively tuned vibration absorber comprising a stack of viscoelastic polymer damping plates, secured together with spacers at both ends and having metal tuning weights attached onto the...
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6240964 |
Energy attenuation device for a fluid conveying line and method of attenuating energy in such a line
An energy attenuation device for a fluid-conveying line, and a method for attenuating energy in such a line, are provided. The device includes one or more hose sections disposed in the...
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6216817 |
Damping structural substance and a damping coat forming method
A vibration damped structure, which is excellent in vibration absorption and sound absorption effect, is provided by coating the surface of a structure to be damped with a mixture of molten...
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6177173 |
Damped laminates having welded through holes and/or edges with decreased spring back and improved fastener force retention and, a method of making
The present invention relates to vibration damped laminate articles having improved force (torque and/or pressure and/or stress) retention and decreased or eliminated spring back. An area defining...
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6173805 |
Variably tuned vibration absorber
An in-wall speaker has a variably tuned vibration absorber to absorb and dissipate vibrations in the speaker and surroundings that tend to cause distortions. The vibration absorbing device,...
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6123171 |
Acoustic panels having plural damping layers
An acoustic panel having at least two compressible, flexible, acoustic foam damping layers separated by at least two rigid layers. In one preferred embodiment, a first rigid layer has a second...
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6119807 |
Sound absorbing article and method of making same
A sound dampening glazing, for example an automotive windshield, in one embodiment of the invention includes a pair of glass sheets having facilities therebetween. In cross section and moving from...
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6112848 |
Sound-dampened automobile interior components and methods for making same
An automobile interior component having sound-dampening characteristics has a contact area thereon which contacts a second interior plastic component during operation of the automobile resulting in...
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6092622 |
Thermal and acoustical insulating shield
A flexible, adhesively attachable, thermal and acoustical insulating shield has a needled, flexible, fibrous batt (40) having an insulating layer (43) of insulating fibers (44) disposed between...
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6068081 |
Method for damping vibration and the pressure wave from a material
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5984043 |
Magnetizable flat damping component and adhesive, especially for use in sound-deadening mats
In a magnetizable flat damping component with an acoustic wave damping or suppressing layer (5) with an adhesive layer (2) bonded thereto for securing the damping component to other objects (6) and...
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5965853 |
Sound absorbing aircraft transparency and method of making same
The present invention relates to a vibration dampening/sound absorbing aircraft transparency which includes an outboard pane assembly, a vibration dampening/sound absorbing pane assembly and a...
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5945643 |
Vibration dampening material and process
A laminated damping material comprising a layer of high density and high modulus material as a core layer and two layers of higher modulus material being adhered to the core material, the core...
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5929395 |
Vibrational energy absorption platform
A platform is interposed between an electronic component of a sound reproduction system and a support structure to absorb unwanted vibrational energy originating in the electronic component and...
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5895538 |
Method of manufacturing and using vibration-damping material
A truss type extruded aluminum section is formed of a pair of planar plates and ribs, wherein hollow portions are formed within said section by the ribs and the planar plates. Vibration-damping...
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5895013 |
Low frequency noise suppression system
A constrained damping layer assembly includes a first constraining layer adapted for being secured to a first portion of an aircraft frame, and a second constraining layer adapted for being secured...
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5858509 |
Attenuating vibrations in a mounting shelf for multiple disk drives
A composite shelf in a shelf frame supports a plurality of disk drives and attenuates vibrations in the shelf. In the composite shelf, there is a double wall having an outer wall and an inner wall...
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