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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:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 4071111 |
Weatherproof loudspeaker assembly and method of making same |
Jan. 31, 1978 |
| 3987258 |
Water-proof sound apparatus |
Oct. 19, 1976 |
| 3938618 |
Speaker grille screen and mounting structure |
Feb. 17, 1976 |
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