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Class Information
Number: 181/152
Name: Acoustics > Diaphragm and enclosure > With horn
Description: Subject matter including a tube of varying sectional area associated with the diaphragm for intensifying the sound waves produced therefrom.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5932850 |
Speaker system |
Aug. 3, 1999 |
| 5929392 |
Speaker system |
Jul. 27, 1999 |
| 5925856 |
Loudspeaker horn |
Jul. 20, 1999 |
| 5907133 |
Device for electroacoostic diffusion, with diaphragms, spiders and horns of balsa wood or mixtures thereof |
May. 25, 1999 |
| 5900593 |
Loudspeaker system |
May. 4, 1999 |
| 5898788 |
Loudspeaker system |
Apr. 27, 1999 |
| 5898138 |
Loudspeaker having horn loaded driver and vent |
Apr. 27, 1999 |
| 5872339 |
High performance loudspeaker system |
Feb. 16, 1999 |
| 5847331 |
Omnidirectional loudspeaker |
Dec. 8, 1998 |
| 5825900 |
Loudspeaker housing for video display appliance |
Oct. 20, 1998 |
| 5821470 |
Broadband acoustical transmitting system |
Oct. 13, 1998 |
| 5822443 |
Speaker system for a television |
Oct. 13, 1998 |
| 5804774 |
Ported reflex horn |
Sep. 8, 1998 |
| 5793000 |
Speaker system |
Aug. 11, 1998 |
| 5757942 |
Speaker unit with an improved acoustic equalizer |
May. 26, 1998 |
| 5750943 |
Speaker array with improved phase characteristics |
May. 12, 1998 |
| 5737435 |
Sound-reproducing apparatus comprising an acoustic horn, and acoustic horn for use in the apparatus |
Apr. 7, 1998 |
| 5726396 |
Folded acoustical horn |
Mar. 10, 1998 |
| 5715322 |
Throat device interconnecting a plurality of drive units and a horn |
Feb. 3, 1998 |
| 5710394 |
Television set speaker system |
Jan. 20, 1998 |
| 5675131 |
Speaker system and the same for television sets |
Oct. 7, 1997 |
| 5646381 |
Roof mounted sound horns for vehicles |
Jul. 8, 1997 |
| 5637840 |
Miniaturized high power speaker |
Jun. 10, 1997 |
| 5604337 |
Loudspeaker arrangement in television receiver cabinet |
Feb. 18, 1997 |
| 5537481 |
Horn driver |
Jul. 16, 1996 |
| 5526456 |
Multiple-driver single horn loud speaker |
Jun. 11, 1996 |
| 5471018 |
Audio or video apparatus with a built-in loudspeaker |
Nov. 28, 1995 |
| 5432860 |
Speaker system |
Jul. 11, 1995 |
| 5397866 |
Dual acoustic horn assembly |
Mar. 14, 1995 |
| 5367576 |
Horn speaker |
Nov. 22, 1994 |
| 5359158 |
Ceiling-mounted loudspeaker |
Oct. 25, 1994 |
| 5298690 |
Sound distributor with symmetry of revolution |
Mar. 29, 1994 |
| 5296656 |
Sound collecting and concentrating device for attaching to the back of multiple loudspeakers |
Mar. 22, 1994 |
| 5284222 |
Speaker cabinet |
Feb. 8, 1994 |
| 5268538 |
Hemispherically wide-radiating-angle loudspeaker system |
Dec. 7, 1993 |
| 5233136 |
Horn loadspeaker |
Aug. 3, 1993 |
| 5229555 |
Speaker system and TV with the same |
Jul. 20, 1993 |
| 5206465 |
Sound collecting and concentrating device for attaching to the back of a loudspeaker |
Apr. 27, 1993 |
| 5187333 |
Coiled exponential bass/midrange/high frequency horn loudspeaker |
Feb. 16, 1993 |
| 5181301 |
Method of making a very compact audio warning system |
Jan. 26, 1993 |
| 5163167 |
Sound wave guide |
Nov. 10, 1992 |
| 5123500 |
Loudspeaker enclosure |
Jun. 23, 1992 |
| 5115883 |
Loudspeaker |
May. 26, 1992 |
| 5111905 |
Speaker enclosure |
May. 12, 1992 |
| 5103482 |
Apparatus and method for reproducing high fidelity sound |
Apr. 7, 1992 |
| 5099948 |
Compact woofer speaker system |
Mar. 31, 1992 |
| 5078074 |
Vehicle horn |
Jan. 7, 1992 |
| 5046581 |
Loudspeaker system |
Sep. 10, 1991 |
| 5012889 |
Speaker enclosure |
May. 7, 1991 |
| 5000286 |
Modular loudspeaker system |
Mar. 19, 1991 |
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