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Class Information
Number: 181/150
Name: Acoustics > Diaphragm and enclosure > Recessed (e.g., wall-mounted, etc.)
Description: Subject matter wherein the means to support the diaphragm is provided with means to facilitate mounting within or behind a surface wall or an exposed surface.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4887690 |
Speaker grille assembly |
Dec. 19, 1989 |
| 4875546 |
Loudspeaker with acoustic band-pass filter |
Oct. 24, 1989 |
| 4853966 |
Speaker mounting system |
Aug. 1, 1989 |
| 4850452 |
Loudspeaker structure |
Jul. 25, 1989 |
| 4832150 |
Sound-permeable cover for a loudspeaker |
May. 23, 1989 |
| 4823907 |
Balloon assembly |
Apr. 25, 1989 |
| 4823110 |
Tone generator with improved diaphragm mounting |
Apr. 18, 1989 |
| 4815558 |
Device for accomodating a loudspeaker into a cut-out of a sound panel |
Mar. 28, 1989 |
| 4778027 |
Rhythmizer |
Oct. 18, 1988 |
| 4733749 |
High output loudspeaker for low frequency reproduction |
Mar. 29, 1988 |
| 4733748 |
Loudspeaker mounting device for car radio |
Mar. 29, 1988 |
| 4673057 |
Geometrical transducer arrangements |
Jun. 16, 1987 |
| 4646344 |
Mobile radio set |
Feb. 24, 1987 |
| 4633972 |
Speaker retainer |
Jan. 6, 1987 |
| 4625829 |
Speaker grill |
Dec. 2, 1986 |
| 4591020 |
Loudspeaker enclosure with isolation of loudspeaker vibration |
May. 27, 1986 |
| 4582162 |
Automobile speaker unit |
Apr. 15, 1986 |
| 4572326 |
Motor vehicle loudspeaker installation |
Feb. 25, 1986 |
| 4566557 |
Flat acoustic diffuser |
Jan. 28, 1986 |
| 4550796 |
Mount for loudspeaker on vehicle panel |
Nov. 5, 1985 |
| 4546850 |
Speaker and grille installation clip mounting |
Oct. 15, 1985 |
| 4506117 |
Electroacoustic transducer |
Mar. 19, 1985 |
| 4484658 |
Speaker support assembly |
Nov. 27, 1984 |
| 4454927 |
Reentrant cone driven loudspeaker |
Jun. 19, 1984 |
| 4453047 |
Speaker mounting bracket |
Jun. 5, 1984 |
| 4437540 |
Loud-speaker |
Mar. 20, 1984 |
| 4424881 |
Speaker assembly |
Jan. 10, 1984 |
| 4387786 |
Anechoic chamber arrangement |
Jun. 14, 1983 |
| 4385210 |
Electro-acoustic planar transducer |
May. 24, 1983 |
| 4356881 |
Floor speaker |
Nov. 2, 1982 |
| 4352039 |
Sonic transducer |
Sep. 28, 1982 |
| 4337380 |
Structure for mounting speaker |
Jun. 29, 1982 |
| 4323138 |
Automotive loud speaker enclosure |
Apr. 6, 1982 |
| 4312258 |
Battery powered electronic guitar |
Jan. 26, 1982 |
| 4296280 |
Wall mounted speaker system |
Oct. 20, 1981 |
| 4280586 |
Speaker enclosure |
Jul. 28, 1981 |
| 4281224 |
Grille covered speaker assembly construction for compact automobiles and the like |
Jul. 28, 1981 |
| 4277653 |
Speaker adapter |
Jul. 7, 1981 |
| D255234 |
Ceiling speaker |
Jun. 3, 1980 |
| 4179009 |
Mounting arrangement for a loudspeaker to a resonance panel permitting front insertion assembly |
Dec. 18, 1979 |
| 4178473 |
Two-way loudspeaker for vehicle |
Dec. 11, 1979 |
| 4169516 |
Speaker system |
Oct. 2, 1979 |
| 4161995 |
Loudspeaker housing forming a closed, damped system, particularly for automotive installation |
Jul. 24, 1979 |
| 4161230 |
Loudspeaker equipment |
Jul. 17, 1979 |
| 4144416 |
Unitary tuned port and loudspeaker frame |
Mar. 13, 1979 |
| 4123621 |
Acoustical speaker device |
Oct. 31, 1978 |
| 4098370 |
Vibration masking noise system |
Jul. 4, 1978 |
| 4090582 |
Speaker protector |
May. 23, 1978 |
| 4083426 |
Loud speaker apparatus |
Apr. 11, 1978 |
| 4057689 |
High fidelity sound reproduction system and modules thereof |
Nov. 8, 1977 |
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