Direction-indicating surface marker and the like

Details Direction-indicating surface marker and the like Direction-indicating surface marker and the like

1975-04-11

1978-01-24

Queisser, Richard C.

Signals and indicators

Street traffic

Portable

350104, 404 14, 427137, E01F 904, G02B 5126

Patent

active

040697878

ABSTRACT:
A distinctively and unambiguously marking of the directions of travel on motoring highways, airports and other surfaces with the aid of a thin novel saw-tooth marker strip that is adhered to the traveling surface and has distinctively colored successive surfaces of retroreflecting materials, including transverse cylindrical refractive elements embedded between wedges in the thin strip.

REFERENCES:
patent: 2232023 (1941-02-01), Flocks
patent: 2251386 (1941-08-01), White
patent: 2543800 (1951-03-01), Palmquist et al.
patent: 3292507 (1966-12-01), Vanstrum
patent: 3404610 (1968-10-01), Hischmann
patent: 3827783 (1974-08-01), Lemelson

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