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Class Information
Number: 181/191
Name: Acoustics > Sound-modifying means > Intensifying horn > With external sound deflector
Description: Subject matter including means for changing the direction of the sound after it has left the horn.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7621369 |
Acoustic energy projection system |
Nov. 24, 2009 |
| 7596236 |
Loudspeaker with direct emission and optimised radiation |
Sep. 29, 2009 |
| 7299893 |
Loudspeaker horn and method for controlling grating lobes in a line array of acoustic sources |
Nov. 27, 2007 |
| 7278513 |
Internal lens system for loudspeaker waveguides |
Oct. 9, 2007 |
| 7275621 |
Skew horn for a loudspeaker |
Oct. 2, 2007 |
| 7184562 |
Loudspeaker apparatus |
Feb. 27, 2007 |
| 7178629 |
Electroacoustic public address unit with acoustic horn or waveguide |
Feb. 20, 2007 |
| 7016513 |
Variable disposition wide band multi-way loudspeakers |
Mar. 21, 2006 |
| 6860363 |
Planar acoustic waveguide |
Mar. 1, 2005 |
| 6820718 |
Acoustic reproduction device with improved directional characteristics |
Nov. 23, 2004 |
| 6343132 |
Loudspeaker |
Jan. 29, 2002 |
| 5988314 |
Sound output system |
Nov. 23, 1999 |
| 5898137 |
Speaker system for television set |
Apr. 27, 1999 |
| 5889877 |
Cabinet for a loudspeaker |
Mar. 30, 1999 |
| 5784473 |
Sound system |
Jul. 21, 1998 |
| 5721401 |
Sub-woofer module |
Feb. 24, 1998 |
| 5373771 |
Brass and wind musical instrument attachment and method related thereto |
Dec. 20, 1994 |
| 5293010 |
Sound dampening device for horns |
Mar. 8, 1994 |
| 5243152 |
Sound anti-muffler for a sound generator |
Sep. 7, 1993 |
| 5220608 |
Method and means for stereophonic sound reproduction |
Jun. 15, 1993 |
| 5181301 |
Method of making a very compact audio warning system |
Jan. 26, 1993 |
| 5144670 |
Sound output system |
Sep. 1, 1992 |
| 4939703 |
Transducer baffle and sensor using same |
Jul. 3, 1990 |
| 4908601 |
Loud speaker with horizontal radiation pattern |
Mar. 13, 1990 |
| 4878561 |
Sound emitter |
Nov. 7, 1989 |
| 4689609 |
Electronic horn with spiral deflecting walls coupled to a truncated cone structure |
Aug. 25, 1987 |
| RE30300 |
Acoustical reflector for wind instruments |
Jun. 10, 1980 |
| 4164631 |
Horn loudspeaker with acoustic lens |
Aug. 14, 1979 |
| 4146999 |
Acoustical panel with rigidified edges |
Apr. 3, 1979 |
| 4134324 |
Sound projector for musical drums |
Jan. 16, 1979 |
| 4033431 |
Acoustic crossover speaker enclosure |
Jul. 5, 1977 |
| 4012983 |
Acoustical reflector for wind instruments |
Mar. 22, 1977 |
| 3944757 |
High-fidelity moving-coil loudspeaker |
Mar. 16, 1976 |
| 3930561 |
Low distortion pyramidal dispersion speaker |
Jan. 6, 1976 |
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