Road structure – process – or apparatus – Traffic director – Yielding
Patent
1979-06-01
1981-10-27
Byers, Jr., Nile C.
Road structure, process, or apparatus
Traffic director
Yielding
E01F 904
Patent
active
042970512
ABSTRACT:
A roadway marker, as for division of traffic lanes, has a flexible plastic dome-shaped top which extends above the roadway surface and is elastically deformable when run over by a snowplow blade. The marker is thus capable of use in all types of climate. A generally cylindrical skirt portion extends downwardly from the dome-shaped top and a ring-shaped flange is provided at the bottom of the skirt portion. The marker is placed in a bore formed in the roadway surface, such that the peripheral edge of the top is flush with the surface, and a grouting or similar material is applied to anchor and seal the marker within the bore, preferably such that air is sealed within the interior of the marker. The marker top may be made reflective by encapsulating an omni-directional reflective material just under the surface, in the molding process.
REFERENCES:
patent: 1802940 (1931-04-01), Cornelius
patent: 2224937 (1940-12-01), Stedman
patent: 2229179 (1941-01-01), Langdon
patent: 2328407 (1943-08-01), Becker
patent: 2434103 (1948-01-01), Elliott
patent: 2627784 (1953-02-01), Pellar
patent: 2635513 (1953-04-01), Batterson
patent: 2703038 (1955-03-01), Shaw
patent: 3216335 (1965-11-01), Stolarczyk
patent: 3332327 (1967-07-01), Heenan
patent: 3920348 (1975-11-01), Paulos
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