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Class Information
Number: 181/145
Name: Acoustics > Plural diaphragm sound sources > Plural chambers
Description: Subject matter wherein the vibrated means are mounted in more than one enclosure or compartment.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8511422 Flexible multiple speaker support apparatus Aug. 20, 2013
8515102 Line array loudspeaker Aug. 20, 2013
8422713 Spherically housed loudspeaker system Apr. 16, 2013
8333261 Compact subwoofer cabinet Dec. 18, 2012
8284977 Multi chamber ported stereo speaker Oct. 9, 2012
8229155 Speaker assembly with directional adjustability Jul. 24, 2012
8224001 Line array loudspeaker Jul. 17, 2012
8204266 Audio devices Jun. 19, 2012
8191674 Acoustic loading device for loudspeakers Jun. 5, 2012
8167083 Reconfigurable loudspeaker enclosure May. 1, 2012
8165333 Modular speaker system Apr. 24, 2012
8151929 Acoustic waveguide vibration damping Apr. 10, 2012
8146989 Child soothing device with a low frequency sound chamber Apr. 3, 2012
8144900 Speaker system Mar. 27, 2012
8111836 System and method using a phased array of acoustic generators for producing an adaptive null zone Feb. 7, 2012
8050441 Portable speakers Nov. 1, 2011
8050432 Sound system Nov. 1, 2011
8033324 Jet flow generating apparatus, electronic apparatus, and jet flow generating method Oct. 11, 2011
8002078 Acoustic waveguide vibration damping Aug. 23, 2011
7886867 Flexible multiple speaker support apparatus Feb. 15, 2011
7813770 Speaker module design Oct. 12, 2010
7743878 Folded horn enclosure with unitary pathway Jun. 29, 2010
7650006 Method to generate a plane acoustic wave front, a plane wave channel, a loudspeaker construction and a linear loudspeaker array Jan. 19, 2010
7624839 Enclosure for symbiotic active/passive operation of an acoustic driver Dec. 1, 2009
7578368 Speaker set for electronic product Aug. 25, 2009
7578367 Speaker set and electronic product incorporating the same Aug. 25, 2009
7577265 Loudspeaker system providing improved sound presence and frequency response in mid and high frequency ranges Aug. 18, 2009
7556121 Speaker set and mobile phone incorporating the same Jul. 7, 2009
7553288 Sound and vibration transmission pad and system Jun. 30, 2009
7519195 Sound system for industrial tool chests Apr. 14, 2009
7454030 Subwoofer with cascaded linear array of drivers Nov. 18, 2008
7418104 Speaker system Aug. 26, 2008
7392880 Dual range horn with acoustic crossover Jul. 1, 2008
7350618 Multimedia speaker product Apr. 1, 2008
7328769 Rigging system for loudspeaker arrays Feb. 12, 2008
7207413 Closed loop embedded audio transmission line technology for loudspeaker enclosures and systems Apr. 24, 2007
7201251 Modular speaker cabinet Apr. 10, 2007
7188703 Device for establishing noise in a motor vehicle Mar. 13, 2007
7151836 Speaker apparatus and sound reproduction apparatus Dec. 19, 2006
7130432 Speaker mounting system and method Oct. 31, 2006
7103193 Bandpass woofer enclosure with multiple acoustic fibers Sep. 5, 2006
7021419 Speaker system Apr. 4, 2006
6999597 Speaker stacking structure Feb. 14, 2006
6985593 Baffle vibration reducing Jan. 10, 2006
6973994 Apparatus for increasing the quality of sound from an acoustic source Dec. 13, 2005
6940990 Multi-channel audio center speaker device Sep. 6, 2005
6782112 Low frequency transducer enclosure Aug. 24, 2004
6771787 Waveguide electroacoustical transducing Aug. 3, 2004
6739424 Speaker system May. 25, 2004
6719090 Speaker assembly Apr. 13, 2004

1 2 3 4










 
 
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