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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 |
| 5400413 |
Pre-formed speaker grille cloth |
Mar. 21, 1995 |
| 5373564 |
Transmission line for planar waves |
Dec. 13, 1994 |
| 5357586 |
Flow-through air-cooled loudspeaker system |
Oct. 18, 1994 |
| 5335283 |
Loudspeaker apparatus for electronic keyboard musical instrument |
Aug. 2, 1994 |
| 5327985 |
Acoustical transducer enclosure |
Jul. 12, 1994 |
| 5322979 |
Speaker cover assembly |
Jun. 21, 1994 |
| 5307418 |
Center channel speaker having multiple interconnected backload amplifying chambers for surround sound stereo audio systems |
Apr. 26, 1994 |
| 5304747 |
Speaker with motor-controlled internal baffle |
Apr. 19, 1994 |
| 5298693 |
Speaker support stand |
Mar. 29, 1994 |
| 5294131 |
Audible arrow |
Mar. 15, 1994 |
| 5290973 |
Acoustic damping device |
Mar. 1, 1994 |
| 5286928 |
Tunable speaker tube |
Feb. 15, 1994 |
| 5284222 |
Speaker cabinet |
Feb. 8, 1994 |
| 5278361 |
Loudspeaker system |
Jan. 11, 1994 |
| 5268539 |
Acoustic apparatus |
Dec. 7, 1993 |
| 5268538 |
Hemispherically wide-radiating-angle loudspeaker system |
Dec. 7, 1993 |
| 5266752 |
Reflex folded horn speaker enclosure |
Nov. 30, 1993 |
| 5266751 |
Cluster of loudspeaker cabinets having adjustable splay angle |
Nov. 30, 1993 |
| 5258584 |
Multiple auxiliary compound driver loudspeaker system |
Nov. 2, 1993 |
| 5253933 |
Speaker stand |
Oct. 19, 1993 |
| 5229555 |
Speaker system and TV with the same |
Jul. 20, 1993 |
| 5218176 |
Custom featherlight musical speaker enclosures |
Jun. 8, 1993 |
| 5216211 |
Audio-visual furniture stand |
Jun. 1, 1993 |
| 5206464 |
Loudspeaker mounting assembly |
Apr. 27, 1993 |
| 5204501 |
Synchronous common polar resonant wall type speaker cabinet |
Apr. 20, 1993 |
| 5194701 |
Speaker structure |
Mar. 16, 1993 |
| 5194700 |
Louver structure with movable slats for a loudspeaker box |
Mar. 16, 1993 |
| 5191176 |
Audio loudspeaker enclosure |
Mar. 2, 1993 |
| 5191177 |
Tube speaker |
Mar. 2, 1993 |
| 5187333 |
Coiled exponential bass/midrange/high frequency horn loudspeaker |
Feb. 16, 1993 |
| 5177329 |
High efficiency low frequency speaker system |
Jan. 5, 1993 |
| 5170436 |
Acoustic speaker system |
Dec. 8, 1992 |
| 5170435 |
Waveguide electroacoustical transducing |
Dec. 8, 1992 |
| 5147986 |
Subwoofer speaker system |
Sep. 15, 1992 |
| 5137110 |
Highly directional sound projector and receiver apparatus |
Aug. 11, 1992 |
| 5133428 |
Direction-adjustable speaker system |
Jul. 28, 1992 |
| 5131052 |
Mid-range loudspeaker assembly propagating forward and backward sound waves in phase |
Jul. 14, 1992 |
| 5123500 |
Loudspeaker enclosure |
Jun. 23, 1992 |
| 5117938 |
Speaker installing holder |
Jun. 2, 1992 |
| 5119421 |
Stereo system cabinet with loudspeaker door assembly |
Jun. 2, 1992 |
| 5113968 |
Speaker grill assembly |
May. 19, 1992 |
| 5111905 |
Speaker enclosure |
May. 12, 1992 |
| 5109422 |
Acoustic apparatus |
Apr. 28, 1992 |
| 5105906 |
Sound reproduction speaker with improved directional characteristics |
Apr. 21, 1992 |
| 5097514 |
Equilateral tetrahedral speaker system |
Mar. 17, 1992 |
| 5092424 |
Electroacoustical transducing with at least three cascaded subchambers |
Mar. 3, 1992 |
| 5082083 |
Structure wall mounted speaker assembly |
Jan. 21, 1992 |
| 5082084 |
Extensible sound case |
Jan. 21, 1992 |
| 5056618 |
Loudspeaker housing |
Oct. 15, 1991 |
| 5025885 |
Multiple chamber loudspeaker system |
Jun. 25, 1991 |
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