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Class Information
Number: 181/199
Name: Acoustics > Sound-modifying means > Housing or enclosure (e.g., sound confining and absorbing) > Speaker type
Description: Subject matter wherein the enclosure is for a loudspeaker.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4453047 |
Speaker mounting bracket |
Jun. 5, 1984 |
| 4452333 |
Speaker system |
Jun. 5, 1984 |
| 4450929 |
Acoustic energy systems |
May. 29, 1984 |
| 4445228 |
Motorcycle audio system |
Apr. 24, 1984 |
| 4439644 |
Loud speaker enclosure |
Mar. 27, 1984 |
| 4437541 |
Controlled dispersion speaker configuration |
Mar. 20, 1984 |
| 4437539 |
Speaker enclosure |
Mar. 20, 1984 |
| 4437540 |
Loud-speaker |
Mar. 20, 1984 |
| 4436178 |
Housing loudspeaker |
Mar. 13, 1984 |
| 4433749 |
Acoustic rear radiation absorption for loudspeaker systems |
Feb. 28, 1984 |
| 4424881 |
Speaker assembly |
Jan. 10, 1984 |
| 4421200 |
Elliptically shaped transducer enclosure |
Dec. 20, 1983 |
| 4413703 |
Bass-reflex type speaker system |
Nov. 8, 1983 |
| 4410063 |
Loudspeaker system |
Oct. 18, 1983 |
| 4408678 |
Loudspeaker enclosure |
Oct. 11, 1983 |
| 4398619 |
Loudspeaker cabinet |
Aug. 16, 1983 |
| 4391346 |
Loud-speaker |
Jul. 5, 1983 |
| 4379213 |
Electroacoustical converter |
Apr. 5, 1983 |
| 4373606 |
Loudspeaker enclosure and process for generating sound radiation |
Feb. 15, 1983 |
| 4365688 |
Speaker cabinet |
Dec. 28, 1982 |
| 4332986 |
Speaker system employing passive radiator |
Jun. 1, 1982 |
| 4325455 |
Loudspeaker grille |
Apr. 20, 1982 |
| 4322578 |
Method and devices for the omnidirectional radiation of sound waves |
Mar. 30, 1982 |
| 4313032 |
Folded horn loudspeaker system |
Jan. 26, 1982 |
| 4312420 |
Sound diffusion plant with very low directivity |
Jan. 26, 1982 |
| 4301889 |
Speaker enclosure |
Nov. 24, 1981 |
| 4299304 |
Exponential folded horn speaker enclosure |
Nov. 10, 1981 |
| 4286688 |
Loudspeaker apparatus |
Sep. 1, 1981 |
| 4284168 |
Loudspeaker enclosure |
Aug. 18, 1981 |
| 4284166 |
Port devices for bass-reflex speaker enclosures |
Aug. 18, 1981 |
| 4284844 |
Loudspeaker system |
Aug. 18, 1981 |
| 4281738 |
Spherical loudspeaker enclosure |
Aug. 4, 1981 |
| 4280586 |
Speaker enclosure |
Jul. 28, 1981 |
| 4280585 |
Multi-sound speaker system |
Jul. 28, 1981 |
| 4280019 |
Combination acoustic conditioner and light fixture |
Jul. 21, 1981 |
| 4257325 |
Mouting of a substantially planar diaphragm defining a sound transducer |
Mar. 24, 1981 |
| 4256198 |
Acoustic apparatus |
Mar. 17, 1981 |
| 4244096 |
Speaker box manufacturing method |
Jan. 13, 1981 |
| 4235301 |
Folded column speaker enclosure |
Nov. 25, 1980 |
| 4231445 |
Acoustic lens speaker cabinet |
Nov. 4, 1980 |
| 4231446 |
Resonating chamber |
Nov. 4, 1980 |
| 4227590 |
Grille for loudspeaker cabinet |
Oct. 14, 1980 |
| 4225010 |
Loudspeaker system |
Sep. 30, 1980 |
| 4223760 |
Loudspeaker assembly |
Sep. 23, 1980 |
| 4221929 |
Speaker system |
Sep. 9, 1980 |
| 4220220 |
Loudspeaker equipment |
Sep. 2, 1980 |
| 4215761 |
Bass sound projection systems |
Aug. 5, 1980 |
| 4214645 |
Method of and means for loudspeaker sound wave distribution |
Jul. 29, 1980 |
| 4213515 |
Speaker system |
Jul. 22, 1980 |
| 4210223 |
Low frequency folded exponential horn loudspeaker apparatus with bifurcated sound path |
Jul. 1, 1980 |
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