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Class Information
Number: 181/149
Name: Acoustics > Diaphragm and enclosure > Moisture proof
Description: Subject matter wherein the means to enclose the diaphragm is waterproof or rain resistant.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8687828 Cover unit covering openings and an electronic device provided with the cover unit Apr. 1, 2014
8675903 Acoustic porting for a portable communication device Mar. 18, 2014
8615100 Sound producing device for vehicle Dec. 24, 2013
8561755 Electronic device with speaker Oct. 22, 2013
8565470 Electroacoustic transducer Oct. 22, 2013
8181735 Aquatic loudspeaker having a diaphragm May. 22, 2012
8184826 Speaker system May. 22, 2012
8157048 Splash proof acoustically resistive color assembly Apr. 17, 2012
8032195 Portable device, acoustic component disposition method and acoustic component assembly Oct. 4, 2011
7974423 Loudspeaker system Jul. 5, 2011
7913807 Vehicle door structure Mar. 29, 2011
7886868 Self-draining grill and system incorporating the same Feb. 15, 2011
7717227 Speaker attaching construction and speaker May. 18, 2010
7448467 Acoustic enclosures Nov. 11, 2008
7360499 Helmholtz resonator type marine signal Apr. 22, 2008
7039212 Weather resistant porting May. 2, 2006
6987860 Speaker installation structure Jan. 17, 2006
6932187 Protective acoustic cover assembly Aug. 23, 2005
6810129 Waterproof speaker for use in an automobile Oct. 26, 2004
6807284 Speaker and speaker device Oct. 19, 2004
6798888 Mount for underwater acoustic projector Sep. 28, 2004
6789642 Display enclosure having thin speaker Sep. 14, 2004
6771787 Waveguide electroacoustical transducing Aug. 3, 2004
6752238 Water resistant audible toys with sound effects Jun. 22, 2004
6708797 Display enclosure having thin speaker Mar. 23, 2004
6626262 Waterproof speaker Sep. 30, 2003
6561311 Speaker cabinet May. 13, 2003
6438242 Acoustic transducer panel Aug. 20, 2002
6430297 Speaker and speaker device Aug. 6, 2002
6412594 Water gun with sound effects module Jul. 2, 2002
6321868 Watertight apparatus capable of being immersed and including an acoustic transducer Nov. 27, 2001
6298943 Bass-reflex speaker assembly Oct. 9, 2001
6128394 Speaker apparatus and waterproof cover therefor Oct. 3, 2000
6122390 Speaker hatchboard Sep. 19, 2000
5802192 Speaker waterproof structure for electrical equipment Sep. 1, 1998
5306880 Omnidirectional speaker system Apr. 26, 1994
5105394 Constrained diaphragm transducer Apr. 14, 1992
4949806 Headset for underwater use Aug. 21, 1990
4949386 Speaker system Aug. 14, 1990
4773502 Enclosure for loudspeaker systems Sep. 27, 1988
4754852 Simulated rock speaker assembly Jul. 5, 1988
4657108 Constant pressure device Apr. 14, 1987
4646872 Earphone Mar. 3, 1987
4584718 Waterproof enclosure for portable radio or tape player Apr. 22, 1986
4565258 Stereo headset system for use in a wet environment Jan. 21, 1986
4385211 Reflex horn speaker with a waterproofing device May. 24, 1983
4196791 Speaker grill including stress regions Apr. 8, 1980
4180140 Loudspeaker porting Dec. 25, 1979
4161995 Loudspeaker housing forming a closed, damped system, particularly for automotive installation Jul. 24, 1979
4123622 Protective cover for sound transducers located in face masks of divers Oct. 31, 1978

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