Visible markers for road surfaces

Details Visible markers for road surfaces Visible markers for road surfaces

1976-02-23

1977-09-20

Byers, Nile C.

Road structure, process, or apparatus

Traffic director

Yielding

40125N, 350102, E01F 900

Patent

active

040493580

ABSTRACT:
A marker for road surfaces is of the type having a mounting adapted to be fixed in the roadway with an aperture at the upper end of the mounting for holding a visible portion held in upraised position by spring means; in the marker of the invention the visible portion is at least one reflector and/or light source, enclosed in a translucent sealed casing which is shaped to move vertically within the mounting.
Preferably the visible portion is a pair of corner-cube reflectors, the mounting around the aperture contacts the casing so as to wipe its faces clean, and the spring means is a solid rubber ball.

REFERENCES:
patent: 2157059 (1939-05-01), Rosener
patent: 2941447 (1960-06-01), Abbott
patent: 3292506 (1966-12-01), Kone
patent: 3377930 (1968-04-01), Kone
patent: 3703855 (1972-11-01), Converso
patent: 3717076 (1973-02-01), Shields
patent: 3920348 (1975-11-01), Paulos

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