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Class Information
Number: 116/142R
Name: Signals and indicators > Horns, whistles and compressional wave generators > Diaphragm horns
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7389740 |
Acoustic device |
Jun. 24, 2008 |
| 7063040 |
Portable air horn apparatus |
Jun. 20, 2006 |
| 6816065 |
Electromechanical horn warning system |
Nov. 9, 2004 |
| 6796265 |
Pneumatic signaling device for divers |
Sep. 28, 2004 |
| 6456193 |
Controlling method and apparatus of constant-frequency sound-production of electrical horn |
Sep. 24, 2002 |
| 6294984 |
Air horn assembly |
Sep. 25, 2001 |
| 6211774 |
Electronic horn and method for mimicking a multi-frequency tone |
Apr. 3, 2001 |
| 5942815 |
Programmable capacitive horn switch |
Aug. 24, 1999 |
| 5929751 |
Rear mounted vehicular horn |
Jul. 27, 1999 |
| 5867090 |
Diaphragm buzzer |
Feb. 2, 1999 |
| 5662064 |
High acoustic output horn |
Sep. 2, 1997 |
| 5659288 |
Method for setting horn air gap |
Aug. 19, 1997 |
| 5592145 |
Electromagnetic signal horn |
Jan. 7, 1997 |
| 5460116 |
Horn for sportfans |
Oct. 24, 1995 |
| 5420563 |
Motor-vehicle horn |
May. 30, 1995 |
| 5414406 |
Self-tuning vehicle horn |
May. 9, 1995 |
| 5345852 |
Drainage structure of a volute horn |
Sep. 13, 1994 |
| 5270680 |
Loud horn with respiration pipe and in particular for motor vehicles |
Dec. 14, 1993 |
| 5266921 |
Method and apparatus for adjusting vehicle horns |
Nov. 30, 1993 |
| 5263435 |
Volute horn and method of manufacturing |
Nov. 23, 1993 |
| 5218337 |
Automotive vehicle tone generator |
Jun. 8, 1993 |
| 5078074 |
Vehicle horn |
Jan. 7, 1992 |
| 5022341 |
Horn |
Jun. 11, 1991 |
| 4970983 |
Multitone horn |
Nov. 20, 1990 |
| 4945334 |
Energizing means for electronic warning apparatus |
Jul. 31, 1990 |
| 4896134 |
Armored self-contained outdoor/indoor siren assembly |
Jan. 23, 1990 |
| 4829930 |
Pneumatic horn |
May. 16, 1989 |
| 4823110 |
Tone generator with improved diaphragm mounting |
Apr. 18, 1989 |
| 4763109 |
Acoustical vehicle horn with improved vent |
Aug. 9, 1988 |
| 4717906 |
Electric horn with improved pole piece and adjusting cap |
Jan. 5, 1988 |
| 4700177 |
Sound generating apparatus with sealed air chamber between two sounding plates |
Oct. 13, 1987 |
| 4664055 |
Alarm horn |
May. 12, 1987 |
| 4441099 |
Diaphragm horn |
Apr. 3, 1984 |
| 4433750 |
Synthetic horn projector with metal insert |
Feb. 28, 1984 |
| 4413253 |
Miniature sounder with double tuned cavity |
Nov. 1, 1983 |
| 4361952 |
Method of adjusting air gap of an electric horn |
Dec. 7, 1982 |
| 4314522 |
Acoustic electropneumatic signal generator, particularly for automotive vehicles |
Feb. 9, 1982 |
| 4267552 |
Electromagnetic sound generator for automative vehicles and the like |
May. 12, 1981 |
| 4171677 |
Horn flare |
Oct. 23, 1979 |
| 4135473 |
Vehicular sound generator |
Jan. 23, 1979 |
| 4134200 |
Method of making an electromagnetic sound generator |
Jan. 16, 1979 |
| 4116158 |
Vibrating membrane horns |
Sep. 26, 1978 |
| 4116302 |
Horn loudspeaker |
Sep. 26, 1978 |
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