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Class Information
Number: 181/155
Name: Acoustics > Diaphragm and enclosure > Reflector baffle
Description: Subject matter wherein the vibrated means is substantially enclosed and a portion of a radiation wave from in front of the vibrated means is deflected or modified.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4967872 |
Loud speaker system |
Nov. 6, 1990 |
| 4965837 |
Environmentally resistant loudspeaker |
Oct. 23, 1990 |
| 4942939 |
Speaker system with folded audio transmission passage |
Jul. 24, 1990 |
| 4939703 |
Transducer baffle and sensor using same |
Jul. 3, 1990 |
| 4924962 |
Sound reproducing apparatus for use in vehicle |
May. 15, 1990 |
| 4923031 |
High output loudspeaker system |
May. 8, 1990 |
| 4918738 |
Structural assembly for housing an acoustical system |
Apr. 17, 1990 |
| 4907671 |
Wide dispersion reflector |
Mar. 13, 1990 |
| 4884523 |
Vehicle warning system |
Dec. 5, 1989 |
| 4876723 |
Loudspeaker system |
Oct. 24, 1989 |
| 4870691 |
Load and dispersion cell for sound |
Sep. 26, 1989 |
| 4850452 |
Loudspeaker structure |
Jul. 25, 1989 |
| 4844198 |
Plane wave focusing lens |
Jul. 4, 1989 |
| 4836329 |
Loudspeaker system with wide dispersion baffle |
Jun. 6, 1989 |
| 4836328 |
Omnidirectional acoustic transducer |
Jun. 6, 1989 |
| 4836327 |
Sound reinforcement enclosure employing cone loudspeaker with annular central loading member and coaxially mounted compression driver |
Jun. 6, 1989 |
| 4823908 |
Directional loudspeaker system |
Apr. 25, 1989 |
| 4805731 |
Sound projection method and apparatus |
Feb. 21, 1989 |
| 4800983 |
Energized acoustic labyrinth |
Jan. 31, 1989 |
| 4790408 |
Coiled exponential bass/midrange horn loudspeakers |
Dec. 13, 1988 |
| 4787472 |
Audio speaker apparatus |
Nov. 29, 1988 |
| 4733749 |
High output loudspeaker for low frequency reproduction |
Mar. 29, 1988 |
| 4722418 |
Loudspeaker enclosure |
Feb. 2, 1988 |
| 4701951 |
Acoustic imager |
Oct. 20, 1987 |
| 4696370 |
Headrest-mounted acoustic device |
Sep. 29, 1987 |
| 4679651 |
Loudspeaker enclosure |
Jul. 14, 1987 |
| 4635748 |
Speaker cabinet having interactive speakers |
Jan. 13, 1987 |
| 4629029 |
Multiple driver manifold |
Dec. 16, 1986 |
| 4629030 |
Phase coherent acoustic transducer |
Dec. 16, 1986 |
| 4625829 |
Speaker grill |
Dec. 2, 1986 |
| 4624337 |
Speaker enclosure |
Nov. 25, 1986 |
| 4620317 |
Tabletop speaker assembly |
Oct. 28, 1986 |
| 4616731 |
Speaker system |
Oct. 14, 1986 |
| 4598789 |
Sound reproducing |
Jul. 8, 1986 |
| 4593784 |
Loudspeaker enclosure |
Jun. 10, 1986 |
| 4588042 |
Parabolic speaker |
May. 13, 1986 |
| 4580654 |
Portable sound speaker system |
Apr. 8, 1986 |
| 4574906 |
Outdoor speaker |
Mar. 11, 1986 |
| 4566557 |
Flat acoustic diffuser |
Jan. 28, 1986 |
| 4549631 |
Multiple porting loudspeaker systems |
Oct. 29, 1985 |
| 4475620 |
Loudspeaker with wall reflex absorber |
Oct. 9, 1984 |
| 4474258 |
Loudspeaker enclosure and waveform energy reflector |
Oct. 2, 1984 |
| 4466505 |
Sound reproducing combination |
Aug. 21, 1984 |
| 4454927 |
Reentrant cone driven loudspeaker |
Jun. 19, 1984 |
| 4445227 |
Loudspeaker having improved directional characteristics |
Apr. 24, 1984 |
| 4424881 |
Speaker assembly |
Jan. 10, 1984 |
| 4421200 |
Elliptically shaped transducer enclosure |
Dec. 20, 1983 |
| 4392548 |
Speaker enclosure and method of producing same |
Jul. 12, 1983 |
| 4387787 |
Loudspeaker having acoustic impedance frontal loading element |
Jun. 14, 1983 |
| 4377219 |
Loudspeaker having apertured acoustic impedance frontal loading element |
Mar. 22, 1983 |
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