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Class Information
Number: 181/153
Name: Acoustics > Diaphragm and enclosure > Rounded enclosure (e.g., curved, etc.)
Description: Subject matter wherein the means to enclose the diaphragm has at least one surface that is circular or curved.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7325649 |
Loudspeaker with progressively damped acoustical chamber |
Feb. 5, 2008 |
| 7178628 |
Speaker assembly |
Feb. 20, 2007 |
| 7167415 |
Transducers for focusing sonic energy in transmitting and receiving device |
Jan. 23, 2007 |
| 7088838 |
Speakerphone accessory assembly |
Aug. 8, 2006 |
| 7051835 |
Bass-reflex loudspeaker system and method of manufacturing the same |
May. 30, 2006 |
| 7006648 |
Speaker cabinet with increased air circulation efficiency |
Feb. 28, 2006 |
| 6973994 |
Apparatus for increasing the quality of sound from an acoustic source |
Dec. 13, 2005 |
| 6891957 |
Versatile speaker base |
May. 10, 2005 |
| 6859543 |
Speaker system and method for making the same |
Feb. 22, 2005 |
| 6837333 |
Loudspeaker system with forced air circulation and control circuit therefor |
Jan. 4, 2005 |
| 6782113 |
Sound device mounting assembly |
Aug. 24, 2004 |
| 6766027 |
Elliptical flushmount speaker |
Jul. 20, 2004 |
| 6719091 |
Coaxial speaker system |
Apr. 13, 2004 |
| 6705426 |
Acoustic diffuser and method of production |
Mar. 16, 2004 |
| 6707922 |
Deformable loudspeaker |
Mar. 16, 2004 |
| 6691832 |
Speaker |
Feb. 17, 2004 |
| 6675930 |
Speaker holder |
Jan. 13, 2004 |
| 6636610 |
Loudspeaker systems |
Oct. 21, 2003 |
| 6628792 |
Back to back mounted compound woofer with compression/bandpass loading |
Sep. 30, 2003 |
| 6628797 |
Loudspeaker-and-pre-stressed cabinet |
Sep. 30, 2003 |
| 6598700 |
Compression molded cellulose (CMC) loudspeaker cabinets and method for making same |
Jul. 29, 2003 |
| 6580801 |
Loudspeaker apparatus |
Jun. 17, 2003 |
| 6568502 |
Sounder, speaker and sound head using the sounder |
May. 27, 2003 |
| 6520280 |
System and method for workspace sound regulation |
Feb. 18, 2003 |
| 6513624 |
Loudspeaker enclosure |
Feb. 4, 2003 |
| 6484843 |
Speaker apparatus equipped with means for producing complicated waveform of low frequency with higher improved fidelity |
Nov. 26, 2002 |
| 6431308 |
High fidelity small omnidirectional loudspeaker |
Aug. 13, 2002 |
| 6411721 |
Audio speaker with harmonic enclosure |
Jun. 25, 2002 |
| 6390231 |
Loudspeaker with directed airflow cooling |
May. 21, 2002 |
| 6385324 |
Broadband loudspeaker |
May. 7, 2002 |
| 6374942 |
System and method for a combined rotatable mechanical and electrical speaker mounting system |
Apr. 23, 2002 |
| 6345685 |
Loudspeaker system |
Feb. 12, 2002 |
| 6186269 |
Mini surround sound loudspeaker |
Feb. 13, 2001 |
| 6173064 |
Isolation/damping mounting system for loudspeaker crossover network |
Jan. 9, 2001 |
| 6144751 |
Concentrically aligned speaker enclosure |
Nov. 7, 2000 |
| 6101262 |
Flush-mount pivoting speaker |
Aug. 8, 2000 |
| 6095278 |
Base for holding the tweeter of a speaker |
Aug. 1, 2000 |
| 6078676 |
Speaker system with a three-dimensional spiral sound passage |
Jun. 20, 2000 |
| 6070694 |
Loudspeaker assembly |
Jun. 6, 2000 |
| 6055320 |
Directional horn speaker system |
Apr. 25, 2000 |
| 6009972 |
Omni-directional speaker system |
Jan. 4, 2000 |
| 5952620 |
Omni-directional sub-bass loudspeaker |
Sep. 14, 1999 |
| 5892182 |
Speaker enclosure |
Apr. 6, 1999 |
| 5886304 |
Omni-directional sound system |
Mar. 23, 1999 |
| 5872855 |
Multiple voice coil, multiple function loudspeaker |
Feb. 16, 1999 |
| 5864100 |
Speaker enclosure |
Jan. 26, 1999 |
| 5844176 |
Speaker enclosure having parallel porting channels for mid-range and bass speakers |
Dec. 1, 1998 |
| 5832099 |
Speaker system having an undulating rigid speaker enclosure |
Nov. 3, 1998 |
| 5824969 |
Speaker system with a three-dimensional spiral sound passage |
Oct. 20, 1998 |
| 5812685 |
Non-directional speaker system with point sound source |
Sep. 22, 1998 |
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