Emergency triangular road safety device

Details Emergency triangular road safety device Emergency triangular road safety device

1981-03-11

1983-09-13

Yasich, Daniel M.

Signals and indicators

Street traffic

Portable

40602, 116 63P, 2504631, 350 97, E01F 910

Patent

active

044035659

ABSTRACT:
An emergency warning device comprising a base, three arms extending upwardly from the base to define an equilateral triangle, one of the arms extending horizontally on the base and the other two arms extending upwardly. Each arm has reflective and fluorescent means on opposed surfaces thereof. Vane devices are constructed and arranged, shaped and positioned on the equilateral triangle and such that air flow against a face of the triangle produces a downward force tending to prevent movement of the device relative to a road surface.

REFERENCES:
patent: 1150444 (1915-08-01), Martter
patent: 3625177 (1971-12-01), Miller
patent: 3738309 (1973-06-01), Nicholl
patent: 3759214 (1973-09-01), Evans et al.
patent: 3766881 (1973-10-01), Ward
patent: 3768187 (1973-10-01), Dunne
patent: 3777428 (1973-12-01), Caufield
patent: 3828455 (1974-08-01), Bentley
patent: 4248001 (1981-03-01), Feuvray

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