Method and apparatus for controlling vehicle directional lamps

Details Method and apparatus for controlling vehicle directional lamps Method and apparatus for controlling vehicle directional lamps

1978-01-25

1979-04-17

Yusko, Donald J.

Communications: electrical

Selective

Having indication or alarm

340642, 340331, 340 73, 315200A, B60Q 138, G08B 538, G08B 2100

Patent

active

041503597

ABSTRACT:
An improved method and apparatus for use in the direction indicating system of a vehicle having a group of front, rear and side directional lamps. The directional lamps are connected in parallel with each other to be energized by a battery through a current detecting resistor, a normally-closed relay and a selection switch. The relay is energized to open periodically in response to a train of pulses so that the directional lamps flash periodically during closure of the selection switch. Closure of the selection switch is detected in response to the voltage across the current detecting resistor to generate the pulses applied to the relay.

REFERENCES:
patent: 3421157 (1969-01-01), Atkins
patent: 3562668 (1971-02-01), Bartlett et al.
patent: 3623154 (1971-11-01), Yonezu
patent: 3811107 (1974-05-01), Sakurai
patent: 3858088 (1974-12-01), Scarpino et al.
patent: 3858178 (1974-12-01), Harrison

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