Communications: electrical – Audible indication – Piezoelectric
Patent
1992-08-10
1994-03-22
Crosland, Donnie L.
Communications: electrical
Audible indication
Piezoelectric
3403881, G08B 300
Patent
active
052968391
ABSTRACT:
An electronic sound generating apparatus includes a housing having a closed end and a sidewall defining a cavity. The sidewall also includes a series of radially arrayed sound radiating ports. A circuit board with power source, a sound generating element electronically connected to the circuit board and a sound reflector are all received in the cavity. The sound reflector includes a substantially conical face axially aligned within the cavity and directed toward the sound generating element. This face serves to radially reflect the sound from the sound generating element through the series of sound radiating ports. A touch plate and normally open switch are also housed in the cavity with all the components maintained in position by means of a retaining ring. The switch may include a pair of spaced, relatively stationary contacts mounted to the sound reflector as well as a collapsible or compressible trigger member with a relatively displaceable contact. When the touch plate is depressed, the displaceable contact engages and bridges across the stationary contacts to close the switch and actuate the sound generating apparatus.
REFERENCES:
patent: 4550429 (1985-10-01), Burbank et al.
patent: 4810997 (1989-03-01), Kudo et al.
patent: 4973941 (1990-11-01), Davis et al.
LandOfFree
Sound generating apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sound generating apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound generating apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-439647