Rotating signal light with variable voltage lamp circuit

Details Rotating signal light with variable voltage lamp circuit Rotating signal light with variable voltage lamp circuit

1979-12-05

1981-08-25

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

340 50, 340 87, 362 35, 362170, 315200A, 350 99, 307 10LS, B60Q 146, H02P 508

Patent

active

042862540

ABSTRACT:
A rotating signal light for use on police cars, ambulances and other vehicles on which a warning light is required, the light being connected with a variable voltage lamp circuit which provides a higher voltage in predetermined rotational positions of the lamp to produce enhanced light in certain directions while providing a lower voltage in other positions of the light to increase lamp life and reduce wattage requirements.

REFERENCES:
patent: 1657816 (1928-01-01), Bonner
patent: 1915319 (1933-06-01), Jones
patent: 2218013 (1940-10-01), Tice et al.

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