Siren sound sychronized light bar system

Details Siren sound sychronized light bar system Siren sound sychronized light bar system

1986-04-22

1989-05-16

Crosland, Donnie L.

Communications: electrical

Land vehicle alarms or indicators

External signal light system

116147, 340405, G08B 700

Patent

active

048313572

ABSTRACT:
A light bar system for a motor vehicle includes a plurality of forward-facing lights and a plurality of rear-facing lights transversely spaced on a bar across a motor vehicle, the forward-facing lights sequentially operated in a pattern moving from one light to the next light in a pattern in a preferred direction, and the rear-facing lights simultaneously operated in a pattern moving from one light to the next light in a pattern in the direction opposite the forward-facing lights.
The lights are sequentially operated in patterns generated from varying audio frequencies of a siren signal generator producing wail or yelp signals of changing frequency, wherein selected lights are switched on at selected frequency bands in the changing frequency siren signal, and at least one specific forward-facing light and one specific rear-facing light in the light bar are energized at each selected frequency band.

REFERENCES:
patent: 2676311 (1954-04-01), Palazzolo
patent: 3471829 (1969-10-01), Kahn
patent: 3891986 (1975-06-01), Lipe et al.
patent: 4040050 (1977-08-01), Nunn, Jr.
patent: 4203091 (1980-05-01), Kruskopf
patent: 4224599 (1980-09-01), Peirish, Jr. et al.
patent: 4357595 (1982-11-01), Gosswiller
patent: 4556862 (1985-12-01), Meinershagen
Public Safety Equipment, "Code 3", Jul. 27, 1976.

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