Traffic marker post

Details Traffic marker post Traffic marker post

1975-12-24

1978-03-14

Byers, Nile C.

Road structure, process, or apparatus

Traffic director

Yielding

E01F 900

Patent

active

040788679

ABSTRACT:
Marker posts, useful for delineating traffic paths, e.g., on highways, airports and parking areas, capable of being impacted and run over by vehicles at sub-zero ambient temperatures, with the post returning to its normal upright position. The posts are extruded tubular bodies of polyethylene modified by an additional polymer selected from the group consisting of ethylene-vinyl acetate copolymers and ethylene-ethyl acrylate copolymers.

REFERENCES:
patent: 2774323 (1956-12-01), Kirk
patent: 3091997 (1963-06-01), Byrd
patent: 3371647 (1968-03-01), Shopbell
patent: 3502007 (1970-03-01), Andersson
patent: 3618556 (1971-11-01), Dittrich
patent: 3709112 (1973-01-01), Ebinger
patent: 3713262 (1973-01-01), Jatcko
patent: 3802135 (1974-04-01), Weichenrieder

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