System for signalling conditions of, including an emergency with

Communications: electrical – Selective – Having indication or alarm

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340 87, 340 50, 340 68, 340 78, B60Q 100

Patent

active

045503044

ABSTRACT:
A system for signalling conditions of, including an emergency within, a vehicle comprises a main housing mountable on the vehicle at a location visible from substantially all lateral points. A warning light is mounted within the housing and light which it generates is projected from the housing by an optical system as a plurality of substantially collimated beams each of which is oblique with respect to the major axis of the vehicle. A switch for actuating the warning light is located within the vehicle for unobtrusive operation. The system also includes additional signal lights for signalling different conditions of the vehicle and circuitry which prevents simultaneous operation of certain of the signal lights that have contradictory meanings.

REFERENCES:
patent: 1857210 (1932-05-01), Nelson et al.
patent: 2029211 (1936-01-01), Adler
patent: 2478178 (1949-08-01), Brasington et al.
patent: 2814028 (1957-11-01), Hamilton
patent: 3349280 (1967-10-01), Siiberg
patent: 3786414 (1974-01-01), Dressayre
patent: 4259664 (1981-03-01), Boisclair
patent: 4384271 (1983-05-01), Visser

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