Automotive turn signal warning device

Details Automotive turn signal warning device Automotive turn signal warning device

1992-10-16

1994-10-04

Peng, John K.

Communications: electrical

Land vehicle alarms or indicators

External signal light system

340468, 340475, 340476, B60Q 140

Patent

active

053530071

ABSTRACT:
A turn signal warning device that uses logic circuits to monitor power leads to lights on vehicle that are lit for turn signals, brakes, and emergency blinkers. This device functions on vehicles whereon the same set of lights are used for turn signals and for brakes; and on vehicles on which separate sets of lights are used for turn signals and for brakes. The logic circuits function with a timing circuit and a piezoelectric alarm to provide an audible signal to an operator of the vehicle a predetermined length of time after the turn signals have been activated. The logic circuits sense when the brake pedal has been depressed and the emergency blinkers have been activated to prevent the audible signal from being generated.

REFERENCES:
patent: 3308428 (1967-03-01), Grontkowski
patent: 3964019 (1976-06-01), Wethe et al.
patent: 4302748 (1981-11-01), Gant

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