Retrofit circuitry for enhanced vehicle hazard warning lights

Details Retrofit circuitry for enhanced vehicle hazard warning lights Retrofit circuitry for enhanced vehicle hazard warning lights

2009-03-03

2011-10-25

Nguyen, Hung T. (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

External signal light system

C340S463000, C340S464000, C340S468000, C340S475000, C340S479000

Reexamination Certificate

active

08044790

ABSTRACT:
A third light is added above the lower two rear turn signal lights of an automotive vehicle Detection hardware is included which senses when both lower lights begin flashing simultaneously due to activation of the vehicle's 4-way hazard warning system. Such detection also introduces current pulses to the third light which flashes simultaneously with the lower two lights to generate a triangular configuration of the three flashing lights. Retrofit circuitry is described to enable installing the modified triangular signal into existing vehicles.

REFERENCES:
patent: 5119067 (1992-06-01), Adell
patent: 5311412 (1994-05-01), Yang
patent: 6243008 (2001-06-01), Korabiak
patent: 2009/0303029 (2009-12-01), Terzian
patent: 2010/0026478 (2010-02-01), Ekchian et al.

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