| |
 |
|
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 |
| 4629030 |
Phase coherent acoustic transducer |
Dec. 16, 1986 |
| 4624337 |
Speaker enclosure |
Nov. 25, 1986 |
| 4624338 |
Loudspeaker enclosure for a vibrating diaphragm loudspeaker |
Nov. 25, 1986 |
| 4623034 |
Loudspeaker construction |
Nov. 18, 1986 |
| 4621708 |
Tweeter bidirectional radiating |
Nov. 11, 1986 |
| 4618025 |
Acoustical ducting for speakers and enclosures |
Oct. 21, 1986 |
| 4616731 |
Speaker system |
Oct. 14, 1986 |
| 4611686 |
Speaker system |
Sep. 16, 1986 |
| 4596305 |
Loudspeaker box in the shape of a shell construction |
Jun. 24, 1986 |
| 4592444 |
Low frequency speaker enclosure |
Jun. 3, 1986 |
| 4591020 |
Loudspeaker enclosure with isolation of loudspeaker vibration |
May. 27, 1986 |
| 4588042 |
Parabolic speaker |
May. 13, 1986 |
| 4580653 |
Portable speaker for vehicles |
Apr. 8, 1986 |
| 4580654 |
Portable sound speaker system |
Apr. 8, 1986 |
| 4572325 |
Stereophonic baffle |
Feb. 25, 1986 |
| 4558762 |
Loudspeaker |
Dec. 17, 1985 |
| 4553628 |
Speaker system |
Nov. 19, 1985 |
| 4549631 |
Multiple porting loudspeaker systems |
Oct. 29, 1985 |
| 4550230 |
Speaker grille with snap-in fastener system |
Oct. 29, 1985 |
| 4525872 |
Amplifier |
Jun. 25, 1985 |
| 4509615 |
Multi-chamber enclosure for loudspeakers |
Apr. 9, 1985 |
| 4506759 |
Loudspeaker enclosure arrangement for voice communication terminals |
Mar. 26, 1985 |
| 4503930 |
Loudspeaker system |
Mar. 12, 1985 |
| 4487290 |
Light aircraft engine muffler |
Dec. 11, 1984 |
| 4485275 |
Inverted horn loudspeaker |
Nov. 27, 1984 |
| 4482026 |
Loudspeaker enclosure |
Nov. 13, 1984 |
| 4475620 |
Loudspeaker with wall reflex absorber |
Oct. 9, 1984 |
| 4474258 |
Loudspeaker enclosure and waveform energy reflector |
Oct. 2, 1984 |
| 4454927 |
Reentrant cone driven loudspeaker |
Jun. 19, 1984 |
| 4453047 |
Speaker mounting bracket |
Jun. 5, 1984 |
| 4452333 |
Speaker system |
Jun. 5, 1984 |
| 4450929 |
Acoustic energy systems |
May. 29, 1984 |
| 4445228 |
Motorcycle audio system |
Apr. 24, 1984 |
| 4439644 |
Loud speaker enclosure |
Mar. 27, 1984 |
| 4437541 |
Controlled dispersion speaker configuration |
Mar. 20, 1984 |
| 4437540 |
Loud-speaker |
Mar. 20, 1984 |
| 4437539 |
Speaker enclosure |
Mar. 20, 1984 |
| 4436178 |
Housing loudspeaker |
Mar. 13, 1984 |
| 4433749 |
Acoustic rear radiation absorption for loudspeaker systems |
Feb. 28, 1984 |
| 4424881 |
Speaker assembly |
Jan. 10, 1984 |
| 4421200 |
Elliptically shaped transducer enclosure |
Dec. 20, 1983 |
| 4413703 |
Bass-reflex type speaker system |
Nov. 8, 1983 |
| 4410063 |
Loudspeaker system |
Oct. 18, 1983 |
| 4408678 |
Loudspeaker enclosure |
Oct. 11, 1983 |
| 4398619 |
Loudspeaker cabinet |
Aug. 16, 1983 |
| 4391346 |
Loud-speaker |
Jul. 5, 1983 |
| 4379213 |
Electroacoustical converter |
Apr. 5, 1983 |
| 4373606 |
Loudspeaker enclosure and process for generating sound radiation |
Feb. 15, 1983 |
| 4365688 |
Speaker cabinet |
Dec. 28, 1982 |
| 4332986 |
Speaker system employing passive radiator |
Jun. 1, 1982 |
|
|
|
