Acoustics inventions

20090277712 - Acoustic energy projection system: The sound generating and transmitting apparatus is based on a radiator including at least a first, and possibly two or more, shaped reflecting surface(s) having a forward radiant axis. Each of the shaped reflecting surfaces defines sets of equivalent acoustic input locations, with each set being a ring of non-zero... Agent: O'malley And Firestone

20090277713 - Acoustic loading device for loudspeakers: A loudspeaker horn includes a pair of opposed flared sides defining a passage diverging to a mouth, and a vane positioned in the passage for steering sound waves through the passage. The vane may have a straight configuration and be either centrally located between the flared sides or laterally offset... Agent: Harness, Dickey & Pierce, P.L.C

20090277714 - Gas turbine exhaust sound suppressor and associated methods: The gas turbine exhaust sound suppressor, or exhaust silencer, and method are for a gas turbine and reduce low frequency exhaust flow noise while avoiding the creation of additional acoustical standing waves, e.g. from wake shedding at certain predictable frequencies. A plurality of elongated flow obstruction members, e.g. pipes or... Agent: Siemens Corporation Intellectual Property Department

20090277715 - Furniture system for influencing the acoustics of a room: A furniture system for influencing the acoustics of a room comprises at least one item of furniture (21 a . . . 21 c) having a substantially cubic shape with four vertical side faces, a horizontal bottom and a horizontal top, wherein at least two, preferably at least three, of... Agent: Birch Stewart Kolasch & Birch

20090277716 - Constrained layer, composite, acoustic damping material: A constrained layer, composite structure for damping acoustic vibrations includes an extensional layer comprised of a first polymeric material, and a constraining layer of a second polymeric material. The modulus of elasticity of the constraining layer is greater than that of the extensional layer. In use, the structure is disposed... Agent: Gifford, Krass, Sprinkle,anderson & Citkowski, P.c

20090277717 - Acoustic face of polymer and embedded coarse aggregates and an acoustic panel assembly: Described is an acoustic face comprising a solid polymer resin and coarse aggregates embedded within the solid polymer resin, and an acoustic panel assembly comprising at least one frame with a central opening in which a pair of the acoustic faces are mountable in opposed and spaced-apart relation to each... Agent: Baker & Hostetler LLP

20090272600 - Mat member, method for manufacturing the mat member, muffler and method for manufacturing the muffler: A mat member includes inorganic fibers, a first surface and a second surface opposite to the first surface. The first surface has a plurality of needle penetration marks and/or a plurality of needle protrusion marks. The second surface has a plurality of needle protrusion marks and/or a plurality of needle... Agent: Ditthavong Mori & Steiner, P.C.

20090272601 - Exhaust device for straddle-type vehicle and straddle-type vehicle: An exhaust device for a straddle type vehicle allowing a compact design while still satisfying the sound deadening characteristic requirements is provided. The exhaust device for a straddle type vehicle comprising: an exhaust pipe that is connected to an engine; a silencer that is connected to the exhaust pipe wherein... Agent: Jones Day

20090266642 - Engine assembly, acoustical liner and associated method of fabrication: An engine assembly, an acoustical liner and an associated fabrication method are provided to address fan blade flutter and fan noise control simultaneously within the same liner area. Fan blade flutter is therefore controlled without necessarily increasing the weight of the engine, impairing the structural integrity of the engine, or... Agent: Alston & Bird, LLP

20090266643 - Silencer: A silencer includes a cylindrical member held between a body connected to an exhaust side of a fluid pressure device and a disk-shaped retaining member. A net-shaped sound absorber is disposed around an outer circumference of the cylindrical member. A pressure fluid flows from the body into the interior of... Agent: Paul A. Guss Paul A. Guss Attorney At Law

20090266644 - Catalytic converter muffler: A catalytic converter muffler has a tubular housing with an inlet and outlet, and a baffle chamber intermediate the length thereof, a generally cylindrical catalytic converter supported in the tubular housing adjacent the inlet and a pair of tubular baffle members are disposed in the baffle chamber. An outlet offset... Agent: Pepe & Hazard, LLP

20090266645 - Sound insulating device: In the sound insulating device, a long sound insulating member including a polyhedron body bent at a predetermined angle to open a sound source side is sequentially stacked between supporting columns arranged in an upstanding manner at a predetermined spacing to configure a sound insulating wall 10 having an appropriate... Agent: Wenderoth, Lind & Ponack, L.L.P.

20090260915 - Speaker apparatus: A speaker apparatus according to the present invention includes a phase inversion-type enclosure in which a speaker unit and a bass reflex port are installed, the bass reflex port having a tubular body whose hollow cross-sectional area gradually becomes smaller from one opening side toward an inside of the bass... Agent: Crowell & Moring LLP Intellectual Property Group

20090260916 - Device and method for active noise cancellation in an exhaust gas channel of a combustion engine: The invention relates to an active noise cancellation device. The invention proposes a device and a method used to cancel the noise in an exhaust gas channel of a vehicle A noise signal is received form the exhaust gas channel, using a sound sensor, a frequency signal which has same... Agent: Merchant & Gould PC

20090260917 - Cladding part for component: The invention relates to a cladding part for components. The cladding part has at least two areas with different vibration damping properties. The different areas make it possible in a simple manner to meet partly conflicting requirements for cladding parts of the components in an optimum manner. The components include... Agent: Siemens Corporation Intellectual Property Department

20090260918 - Panels including renewable components and methods for manufacturing same: A panel includes about 0.1% to about 95% by weight of a ground renewable component. In an embodiment, the panel has at least one core comprising: from about 0.1% to about 95% by weight of the ground renewable component; from about 0.1% to about 95% by weight of one or... Agent: Greer, Burns & Crain, Ltd.