Acoustics inventions 01/07

20070017736 - Speaker diaphragm and method of manufacturing speaker diaphragm: A speaker diaphragm made of a resin containing a thermoplastic polymeric material is provided. The speaker diaphragm includes a changed portion formed on the diaphragm that is molded using the resin. The changed portion is formed by partially changing physical properties of the thermoplastic polymeric material for dispersing local vibrations... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070017737 - Acoustic diaphragm and method for manufacturing an acoustic diaphragm: There is provided an acoustic diaphragm which includes a diaphragm base material composed of a paper article comprised of fine mica flakes, pulp fibers, and polyvinyl alcohol fibers and formed to be a multi-cellular structure; and a sheet material combined with the paper article or the diaphragm base material.... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070017738 - Damper with rotary valve: A fire damper for sealing a conduit which extends through a concrete slab to prevent fire and toxic gases from passing from one side of the slab to the other, includes a housing which has a partially spherical rotatable valve. The rotatable valve has an internal passageway of substantially the... Agent: Abelman Frayne & Schwab

20070017739 - Sound absorbing structure: A sound absorbing structure utilizes the vibration of a plate-like body (1), and includes the plate-like body (1), a vibration damping member (2) provided on at least one surface of the plate-like body (1), and an installation portion (3) provided at an opposite side of the vibration damping member against... Agent: Reed Smith LLP

20070012507 - Head-band transducer by bone conduction: A bone-conduction transducer in the form of a band encircling around a head carries piezoelectric elements that excite the head with signals that correspond to speech and/or audio. The head vibrates according to its modes of vibration, primarily of the skull. Direct connection to bones of the skull, such as... Agent: Steven J Weissburg

20070012508 - Impact resistance acoustic treatment: A liner assembly for a duct includes noise attenuation panel for dissipating sound energy generated within the duct. A damage resistant acoustic panel for installation in high velocity impact prone locations includes a plurality of openings for communicating noise signals to the noise attenuation panel. At lease some of the... Agent: Carlson, Gaskey & Olds, P.C.

20070012509 - Damping material resin compositions, damping materials, restraining-type damping members, and use thereof: An object of the invention is to provide a damping material resin composition which is great in loss tangent, exhibits outstanding damping properties and enables a damping material to retain its own shape. The invention provides a damping material resin composition comprising 100 parts by weight of a thermoplastic resin... Agent: Rader Fishman & Grauer PLLC

20070012510 - Muffler outlet part for a motorcycle muffler: A muffler outlet part for a muffler to be used in exhaust systems of motorcycles has at least one main body disposed transversely to an outflow direction of exhaust gas and having a center axis, the main body having a centrical first outlet opening disposed concentrically relative to the center... Agent: Browdy And Neimark, P.l.l.c. 624 Ninth Street, Nw

20070012511 - Vortex muffler: A muffler includes an inner passage residing in an outer shell, and a stationary fan residing in the inner passage. The fan creates a vortex in a flow through the inner passage thus improving the flow and reducing the exhaust sound level. The inner passage includes an inner passage shell... Agent: Averill & Varn

20070012512 - 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 film made of a thermoplastic resin film having a thickness of from 7μ... Agent: Paul D. Greeley Ohlandt, Greeley, Ruggiero & Perle, L.L.P.

20070000719 - Latching connection for an arrangement comprising a plurality of loudspeaker boxes hanging one above the other: P

20070000720 - Speaker system and speaker enclosure: A speaker system, includes a speaker enclosure that has a surface, a speaker that is mounted in the speaker enclosure, a vibration portion that has one end fixed on the surface of the speaker enclosure so as to be allowed to vibrate elastically, an opening portion that is provided in... Agent: Morrison & Foerster, LLP

20070000721 - Method for manufacturing basalt fiber: Basalt filament is manufactured in such a manner that the fiber diameter can be controlled and the filament is not severed during the winding step. A network former and a glass modifier are formed and maintained with respect to basalt rock ore, and the crystallization and binding of basalt fiber... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070000722 - Method and device for filtering and damping vibrations: The invention relates to a device to filter and damp the vibrations between a first element subjected to an incident vibratory wave and a second element radiating a filtered vibratory wave This device comprises an interface structure to transfer vibratory energy constituted by at least one elastic component and at... Agent: Oliff & Berridge, PLC