Snowplowable pavement marker and base member therefor

Details Snowplowable pavement marker and base member therefor Snowplowable pavement marker and base member therefor

1978-11-24

1980-04-01

Byers, Jr., Nile C.

Road structure, process, or apparatus

Traffic director

Vibration inducing member

E01F 904

Patent

active

041959450

ABSTRACT:
A low-profile snowplowable pavement marker includes a metal base member having two arcuate-bottom keel members interconnected by an arcuate-bottom support member, the upper surfaces of the keel members respectively defining inclined ramps from a plane at one end of the base member toward the other end thereof to corresponding coplanar top surfaces, the support member having a support surface lying below the plane for supporting thereon a cube corner reflex reflector assembly partially recessed below the plane. The keel members and the support member are respectively secured in complementary arcuate recesses with the plane substantially coplanar with the roadway surface, the recesses being cut in the pavement with circular blade cutting apparatus without moving the cutting apparatus along the pavement. A bidirectional marker is shown as well as cutting apparatus for cutting the three recesses therefor simultaneously. A monodirectional pavement marker is shown, with two forms of cutting apparatus for respectively cutting the keel recesses either simultaneously or sequentially with the support member recess.

REFERENCES:
patent: 1910791 (1933-05-01), Coppel
patent: 1927756 (1933-09-01), Ross
patent: 1952942 (1934-03-01), Ross
patent: 1952943 (1934-03-01), Ross
patent: 2126224 (1938-08-01), Shaffer
patent: 2260498 (1941-10-01), Wise
patent: 2337793 (1943-12-01), Abbott
patent: 3332327 (1967-07-01), Heenan
patent: 3516337 (1970-06-01), Gubela
patent: 3540282 (1970-11-01), Kohler
patent: 3587416 (1971-06-01), Flanagan
patent: 3758191 (1973-09-01), Hedgewick
patent: 3784279 (1974-01-01), Hedgewick
patent: 3790293 (1974-02-01), Heenan
patent: 3809487 (1974-05-01), Flanagan
patent: 3975108 (1976-08-01), Suhr
patent: 3980410 (1976-09-01), Suhr

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