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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 |
| 4201274 |
Symmetrical speaker having structural reinforcing ports |
May. 6, 1980 |
| 4200170 |
Pyramid speaker assembly |
Apr. 29, 1980 |
| 4196790 |
Acoustic transducer having multiple frequency resonance |
Apr. 8, 1980 |
| 4196792 |
Laminar flow vented speaker enclosure |
Apr. 8, 1980 |
| 4190738 |
Modular furniture structure |
Feb. 26, 1980 |
| 4180140 |
Loudspeaker porting |
Dec. 25, 1979 |
| 4179008 |
Structure and arrangement for loudspeaker assemblage |
Dec. 18, 1979 |
| D253699 |
Loudspeaker system |
Dec. 18, 1979 |
| 4177873 |
Loudspeaker equipment |
Dec. 11, 1979 |
| 4176730 |
Speaker cabinet |
Dec. 4, 1979 |
| 4173266 |
Loudspeaker enclosure |
Nov. 6, 1979 |
| 4173267 |
Speaker cabinet |
Nov. 6, 1979 |
| 4169516 |
Speaker system |
Oct. 2, 1979 |
| 4168761 |
Symmetrical air friction enclosure for speakers |
Sep. 25, 1979 |
| 4168762 |
Loudspeaker enclosure |
Sep. 25, 1979 |
| 4167985 |
Speaker system |
Sep. 18, 1979 |
| 4164988 |
Fine tuned, column speaker system |
Aug. 21, 1979 |
| 4161995 |
Loudspeaker housing forming a closed, damped system, particularly for automotive installation |
Jul. 24, 1979 |
| 4161230 |
Loudspeaker equipment |
Jul. 17, 1979 |
| 4152544 |
Speaker supporting device |
May. 1, 1979 |
| 4147229 |
Vibratile mode speaker cabinet |
Apr. 3, 1979 |
| 4142604 |
Speaker structure |
Mar. 6, 1979 |
| 4142603 |
Adjustable speaker cabinet |
Mar. 6, 1979 |
| 4136755 |
Loudspeaker system for a vehicle |
Jan. 30, 1979 |
| 4134471 |
Narrow angle cylindrical wave full range loudspeaker system |
Jan. 16, 1979 |
| 4130174 |
Loudspeaker |
Dec. 19, 1978 |
| 4129752 |
Shock resistant loudspeaker enclosure |
Dec. 12, 1978 |
| 4127751 |
Loudspeaker with rigid foamed back-cavity |
Nov. 28, 1978 |
| 4122911 |
Loudspeaker assembly |
Oct. 31, 1978 |
| 4122910 |
Omniphonic microphone and loudspeaker system |
Oct. 31, 1978 |
| 4109983 |
Speaker cabinet |
Aug. 29, 1978 |
| 4090582 |
Speaker protector |
May. 23, 1978 |
| 4083426 |
Loud speaker apparatus |
Apr. 11, 1978 |
| 4082159 |
Ceramic speaker enclosure |
Apr. 4, 1978 |
| 4073365 |
Speaker system |
Feb. 14, 1978 |
| 4071111 |
Weatherproof loudspeaker assembly and method of making same |
Jan. 31, 1978 |
| 4063387 |
Hanging planter pot speaker enclosure |
Dec. 20, 1977 |
| 4063614 |
Combination loudspeaker and sign holder |
Dec. 20, 1977 |
| 4054748 |
Cardioid electro-acoustic radiator |
Oct. 18, 1977 |
| 4052564 |
Masking sound generator |
Oct. 4, 1977 |
| 4039044 |
Low frequency electro-acoustic transducer with interconnected diaphragms interleaved with fixed diaphragms |
Aug. 2, 1977 |
| 4033430 |
Speaker enclosure |
Jul. 5, 1977 |
| 4030563 |
Speaker system of cubic configuration |
Jun. 21, 1977 |
| 4023566 |
Body-supporting means with adjustable vibratory means in the audible frequency range |
May. 17, 1977 |
| 4014597 |
Speaker enclosures |
Mar. 29, 1977 |
| 4006311 |
Stereophonic sound reproducing apparatus |
Feb. 1, 1977 |
| 3993345 |
Enclosure for automobile trunk-mounted loudspeaker |
Nov. 23, 1976 |
| 3985200 |
Background sound system and apparatus for masking speech |
Oct. 12, 1976 |
| 3980154 |
Cabinet for improving the sound output of an amplifier |
Sep. 14, 1976 |
| 3967065 |
Plexiglas speakers |
Jun. 29, 1976 |
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