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Acoustics April category listing, related patent applications 04/09

20090107757 - Acoustic isolator: An acoustic isolator for use with downhole subterranean exploration and production operations, where the operations transmit acoustic signals into a subterranean formation. The acoustic isolator comprises a series of threaded fittings and is disposed on a downhole tool between a transmitter and a receiver. The acoustic isolator substantially attenuates the... Agent: Bracewell & Giuliani LLP

20090107758 - Method and apparatus for detecting explosives: A method and apparatus is provided for detecting explosives by thermal imaging. The explosive material is subjected to a high energy wave which can be either a sound wave or an electromagnetic wave which will initiate a chemical reaction in the explosive material which chemical reaction will produce heat. The... Agent: Husch Blackwell Sanders LLP

20090107759 - Swing-arm integrated exhaust silencer: A Swing-arm Integrated Exhaust Silencer is disclosed. The Silencer is designed to be incorporated within the conventional swingarm of a motorcycle. One version has a removable silencer cartridge that installs within the inner chamber of the motorcycle's swingarm. Another version allows the exhaust stream to be diverted from the conventional... Agent: Karl M. Steins Steins & Associates

20090107760 - Exhaust system and muffler with reversible end-caps: An exhaust system is provided with a muffler with reversible end-caps, which allow a tailpipe to be switched over from one side of the muffler to the other before or after it is attached to an engine and mounted on an application.... Agent: Renner Kenner Greive Bobak Taylor & Weber

20090107761 - Exhaust sound and emission control systems: The exhaust sound and emission control systems reduce sound and noxious emissions from an automotive exhaust. The system may have an exhaust resonator having one or more catalytic converter elements in combination therewith in a single device. Alternatively, the system may have multiple angularly disposed chambers therein, with a series... Agent: Litman Law Offices, Ltd.

20090101432 - Measurement of sound speed of downhole fluid by helmholtz resonator: A downhole logging tool is equipped with a modified Helmholtz resonator for facilitating acoustic formation evaluation and reservoir characterization. The resonator permits calculation of sound speed and viscosity of the fluid in the resonator cavity. The presence of gas bubbles in the fluid may also be detected. The modified Helmholtz... Agent: Schlumberger-doll Research Attn: Intellectual Property Law Department

20090101433 - Invertible ear tips for an ear piece: An ear piece for providing audio (e.g., from an electronic device) to the user is provided. The ear piece may include a compliant element operative to be inserted in the user's ear such that the compliant element deforms to retain the ear piece in the user's ear. The compliant element... Agent: Kramer Levin Naftalis & Frankel LLP

20090101434 - Integrated modular exhaust system: A customizable integrated modular exhaust system is provided having a hollow shell muffler body formed from two symmetrical stamp formed shell members that sealably attach to a tailpipe that transverses the hollow shell, and extends through each end of the hollow shell. Exhaust gases are delivered to the muffler body... Agent: Renner Kenner Greive Bobak Taylor & Weber

20090095566 - Bandless hearing protector and method: A hearing protection device and method of use intended for a human ear. A plug member caps or enters ear canal, and may be shaped to conform to the external auditory meatus. The plug member may be part of a replacement assembly. The device is biased at least in part... Agent: Kimberly-clark Worldwide, Inc. Catherine E. Wolf

20090090579 - Silencer for refrigeration cycle system: A silencer for a refrigeration cycle system is disclosed. The silencer includes a silencing chamber 15a formed in a housing 16, an inlet pipe 20 connected to the housing 16 to allow the refrigerant to flow into the silencing chamber 15a, and an outlet pipe 21 connected to the housing... Agent: Harness, Dickey & Pierce, P.L.C

20090090580 - Sandwich element for the sound-absorbing inner cladding of means of transport, especially for the sound-absorbing inner cladding of aircraft: A sandwich element for the sound-absorbing inner cladding of means of transport such as an aircraft. The sandwich element includes a three-dimensionally constructed core structure disposed between two cover layers that run substantially parallel to one another at a distance. A plurality of passages for sound transmission are incorporated in... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20090084624 - Ported loudspeaker enclosure with tapered waveguide absorber: A loudspeaker enclosure has a first aperture in which a driver can be mounted, the driver having a first resonant frequency. A second aperture defines a port extending between the interior and the exterior of the enclosure. The port is tuned to a second resonant frequency. A sound absorbing element... Agent: Nixon Peabody, LLP

20090084625 - Acoustic waveguide mode controlling: An acoustic device including a first acoustic waveguide having two open ends; a second acoustic waveguide; and an acoustic driver having a first and second radiating surface positioned so that the first: radiating surface radiates into the first waveguide and the second surface radiates into the second waveguide. An acoustic... Agent: Bose Corporation C/o Donna Griffiths

20090084626 - Muffler and working machine: A muffler of a work machine in the form of an engine blower includes: a muffler body; and a diffuser that covers an exhaust outlet of exhaust gas provided on the muffler body. The diffuser has a diffusion space to diffuse the exhaust gas and an exhaust surface on which... Agent: Frishauf, Holtz, Goodman & Chick, PC

20090084627 - Double wall structure: A double wall structure 1 is assumed to be a door serving as a part of an automobile. The double wall structure 1 is provided with plate-like bodies 2 and 3 arranged in parallel and opposing to each other with leaving a predetermined distance. The plate-like bodies 2 and 3... Agent: Reed Smith LLP