Emergency warning device

Abstract From the Canadian patent

Abstract of the Disclosure An emergency warning device comprising a base three arms extending upwardly from the base to define an equilateral triangle, one of said arms extending horizontally on the base and said other two arms extending upwardly. Each arm has reflective and fluorescent portions on opposed surfaces thereof. Slots extend through at least one arm of said equilateral triangle and are shaped 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. i.