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Acoustics August inventions list 08/09

20090211838 - Floating ballast mass active stethoscope or sound pickup device: An active stethoscope or other sound detection device, including a diaphragm, at least one floating mass mounted to the diaphragm (at at least one coupling point of the diaphragm), and an acoustic transducer mounted to the floating mass. Preferably, each floating mass is configured and mounted so that as each... Agent: Girard & Equitz LLP

20090211839 - Speaker cabinet and speaker attenuation system, method, and apparatus: A speaker attenuation system includes a foam attenuating member attached to a mounting bracket. The mounting bracket is configured for attachment to a baffle board of a speaker cabinet and the foam attenuating member is configured to be positioned in a central beam region of a speaker of the speaker... Agent: Harness, Dickey & Pierce, P.L.C

20090211840 - Loudspeaker enclosure: A loudspeaker enclosure is disclosed which comprises an inner cabinet having a front baffle for mounting one or more loudspeaker drivers, the inner cabinet being a self-sustaining enclosure, and an outer cabinet covering at least a half of the inner cabinet surface area but exposing the one or more loudspeaker... Agent: Peigen Jiang

20090211841 - Exhaust system for internal combustion engine having temperature variable acoustics: A muffler for an internal combustion engine featuring two flowpaths for exhaust through the muffler. A first serpentine pathway is substantially longer than a second pathway through the muffler, thereby providing increased sound attenuation. Temperature activated internal valves operate to change the exhaust flowpath from the first flowpath to the... Agent: Donn K. Harms Patent & Trademark Law Center

20090205899 - Acoustic imaging away from the borehole using a low-frequency quadrupole excitation: Acoustic measurements made in a borehole using a multipole source are used for imaging a near-borehole geological formation structure and determination of its orientation. The signal to noise ratio (as defined by the ratio of the signal radiated into the formation to the axially propagating signal) depends upon the type... Agent: Madan & Sriram, P.C.

20090205900 - Hearing protection cap: The present invention relates to an ear cap intended for use as hearing, the ear cap having a sound-reflecting outer shell and a liner of sound absorption materials. The ear cap is characterized by at least one sound-reflecting and vibration-damping weight element arranged on or within the sound absorption liner... Agent: Kimberly-clark Worldwide, Inc. Catherine E. Wolf

20090205901 - Sound absorbing structure and vehicle component having sound absorbing property: A sound absorbing structure is constituted of a housing having a hollow portion and an opening and a vibration member composed of a board or diaphragm. The vibration member is a square-shaped material having elasticity composed of a synthetic resin and is bonded to the opening of the housing, thus... Agent: Dickstein Shapiro LLP

20090205902 - Sound insulation structure with resonator: To enhance the noise reducing effect of a sound insulation structure which includes a cover member for covering a power unit from the outside so as to reduce the radiant sound generated from the power unit, and a resonator. A sound insulation structure includes an armor cover for covering a... Agent: Birch Stewart Kolasch & Birch

20090205903 - Method and system for actively influencing noise, and use thereof in a motor vehicle: Method for influencing noise, wherein a noise source (16), in particular an engine in a motor vehicle, generates the noise with a substantially periodically variable excitation, and wherein a reference variable which is characteristic of the noise source, in particular an engine speed, is present at predetermined successive supply instants... Agent: Sughrue Mion, PLLC

20090200101 - Acoustic transducer made of pure beryllium with directed radiation, with a concave-shaped diaphragm, for audio applications, in particular for acoustic enclosures: P

20090200102 - Loudspeaker enclosure utilizing a rigid foam core: A novel construction of lightweight loudspeaker enclosure wherein the interior is substantially filled with rigid open-celled foam as a structural core. The speaker enclosure is comprised of two basic parts, the structural foam core, and a relatively thin exterior shell. The rigid foam core eliminates acoustic reflections within the interior... Agent: Eric S. Gilbert

20090200103 - Sonic absorption device for an air pipeline of an aircraft, in particular of an air conditioning system of an aircraft: A sonic absorption device for an air pipeline of an aircraft, which sonic absorption device comprises at least one curved pipe section whose respective interior wall is clad with a sound absorption material, wherein within the curved pipe section at least one air guidance means is arranged for a flow... Agent: Ingrassia Fisher & Lorenz, P.C.

20090200104 - Device and method for attenuating energy along a conduit: A device for attenuating energy along a conduit, comprising a first member having an essentially semi-cylindrical outer surface and a first cavity extending substantially longitudinally from end to end. A second member having an essentially semi-cylindrical outer surface is provided, with the outer radii of the first and second members... Agent: Joseph V. Tassone C/o: Dayco Products, LLC

20090200105 - Silencer apparatus with disposable silencer cartridge unit: A silencer apparatus for attenuating noise in gas flow systems. The apparatus generally includes a housing having an interior cavity and a gas flow inlet and outlet that are adapted to be connected to a passage such that a gas flowing through the passage enters and exits the cavity of... Agent: Hartman & Hartman, P.C.

20090200101 - Acoustic transducer made of pure beryllium with directed radiation, with a concave-shaped diaphragm, for audio applications, in particular for acoustic enclosures: P

20090200102 - Loudspeaker enclosure utilizing a rigid foam core: A novel construction of lightweight loudspeaker enclosure wherein the interior is substantially filled with rigid open-celled foam as a structural core. The speaker enclosure is comprised of two basic parts, the structural foam core, and a relatively thin exterior shell. The rigid foam core eliminates acoustic reflections within the interior... Agent: Eric S. Gilbert

20090200103 - Sonic absorption device for an air pipeline of an aircraft, in particular of an air conditioning system of an aircraft: A sonic absorption device for an air pipeline of an aircraft, which sonic absorption device comprises at least one curved pipe section whose respective interior wall is clad with a sound absorption material, wherein within the curved pipe section at least one air guidance means is arranged for a flow... Agent: Ingrassia Fisher & Lorenz, P.C.

20090200104 - Device and method for attenuating energy along a conduit: A device for attenuating energy along a conduit, comprising a first member having an essentially semi-cylindrical outer surface and a first cavity extending substantially longitudinally from end to end. A second member having an essentially semi-cylindrical outer surface is provided, with the outer radii of the first and second members... Agent: Joseph V. Tassone C/o: Dayco Products, LLC

20090200105 - Silencer apparatus with disposable silencer cartridge unit: A silencer apparatus for attenuating noise in gas flow systems. The apparatus generally includes a housing having an interior cavity and a gas flow inlet and outlet that are adapted to be connected to a passage such that a gas flowing through the passage enters and exits the cavity of... Agent: Hartman & Hartman, P.C.

20090194364 - Mufflers with polymeric bodies and process for manufacturing same: Mufflers having polymeric bodies that are protected from being overheated from the exhaust pipe by having an air gap between the exhaust pipe and the polymeric body are disclosed. Also disclosed is a process for making muffler systems wherein the muffler polymeric bodies have a cross section that is constant... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center

20090194365 - Sound reducing system: A system is disclosed for reducing the transmission of acoustical energy between a first and second wall surface of a wall comprising a first and a second beam for supporting a sound panel. Each of the first and second beams comprises first and second flanges interconnected by an inner connector... Agent: Robert F. Frijouf Frijouf, Rust & Pyle, P.A.