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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 |
| 4373606 |
Loudspeaker enclosure and process for generating sound radiation |
Feb. 15, 1983 |
| 4361736 |
Pressure recording process and device |
Nov. 30, 1982 |
| 4356881 |
Floor speaker |
Nov. 2, 1982 |
| 4357490 |
High fidelity loudspeaker system for aurally simulating wide frequency range point source of sound |
Nov. 2, 1982 |
| 4350847 |
Subwoofer system using a passive radiator |
Sep. 21, 1982 |
| 4348549 |
Loudspeaker system |
Sep. 7, 1982 |
| 4348750 |
Energy control device |
Sep. 7, 1982 |
| 4336861 |
Speaker system |
Jun. 29, 1982 |
| 4325454 |
Speaker system which inverts and redirects the speaker backwave |
Apr. 20, 1982 |
| 4313521 |
Speaker housing |
Feb. 2, 1982 |
| 4303807 |
Ultra-small portable sound reproducing apparatus |
Dec. 1, 1981 |
| 4280019 |
Combination acoustic conditioner and light fixture |
Jul. 21, 1981 |
| 4230905 |
Stereophonic system with discrete bass channels |
Oct. 28, 1980 |
| 4227050 |
Virtual sound source system |
Oct. 7, 1980 |
| 4225010 |
Loudspeaker system |
Sep. 30, 1980 |
| 4207963 |
Loudspeaker system |
Jun. 17, 1980 |
| RE30300 |
Acoustical reflector for wind instruments |
Jun. 10, 1980 |
| 4200170 |
Pyramid speaker assembly |
Apr. 29, 1980 |
| 4196791 |
Speaker grill including stress regions |
Apr. 8, 1980 |
| 4196790 |
Acoustic transducer having multiple frequency resonance |
Apr. 8, 1980 |
| 4190739 |
High-fidelity stereo sound system |
Feb. 26, 1980 |
| 4182931 |
360 Degree speakers |
Jan. 8, 1980 |
| 4164988 |
Fine tuned, column speaker system |
Aug. 21, 1979 |
| 4146111 |
Speaker system |
Mar. 27, 1979 |
| 4146869 |
Ultrasonic antenna assembly |
Mar. 27, 1979 |
| 4142603 |
Adjustable speaker cabinet |
Mar. 6, 1979 |
| 4133975 |
Loudspeaker system with broad image source with directionality control for the tweeter |
Jan. 9, 1979 |
| 4130174 |
Loudspeaker |
Dec. 19, 1978 |
| 4122302 |
Two way dynamic and electrostatic speaker enclosure with side vent for greater high frequency dispersion |
Oct. 24, 1978 |
| 4107479 |
Electro-acoustic transducer |
Aug. 15, 1978 |
| 4083426 |
Loud speaker apparatus |
Apr. 11, 1978 |
| 4064966 |
Loudspeaker apparatus |
Dec. 27, 1977 |
| 4038502 |
Acoustic coupling structure for microphone |
Jul. 26, 1977 |
| 4031318 |
High fidelity loudspeaker system |
Jun. 21, 1977 |
| 4029170 |
Radial sound port speaker |
Jun. 14, 1977 |
| 4012983 |
Acoustical reflector for wind instruments |
Mar. 22, 1977 |
| 4006308 |
Loudspeaker arrangement |
Feb. 1, 1977 |
| 4001893 |
Portable tape-recorder |
Jan. 4, 1977 |
| 3987258 |
Water-proof sound apparatus |
Oct. 19, 1976 |
| 3980154 |
Cabinet for improving the sound output of an amplifier |
Sep. 14, 1976 |
| 3977494 |
Adjustable support and housing for a doll and the like |
Aug. 31, 1976 |
| 3964571 |
Acoustic system |
Jun. 22, 1976 |
| 3938617 |
Speaker enclosure |
Feb. 17, 1976 |
| 3938618 |
Speaker grille screen and mounting structure |
Feb. 17, 1976 |
| 3931867 |
Wide range speaker system |
Jan. 13, 1976 |
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