Temporary roadway barrier of contrasting panel portions with ref

Details Temporary roadway barrier of contrasting panel portions with ref Temporary roadway barrier of contrasting panel portions with ref

1986-02-24

1988-09-13

Corbin, John K.

Road structure, process, or apparatus

Apparatus

Rotating drum, roller or tire

350106, 350107, 350109, 404 6, G02B 5124, G02B 513, G02B 5132, E01F 1300

Patent

active

047704950

ABSTRACT:
The disclosures relates to a barrier plank for a roadway having spaced triangular section ridges extending across the plank at spaced locations along the length of the plank. Each ridge provides a facet facing at an acute angle to the plank in one direction and a corresponding facet on the other side of the ridge facing at an acute angle along the plank in the opposite direction. Facets have red retro-reflective surfaces and facets have white retro-reflective surfaces. Thus light directed from a vehicle at a shallow angle onto the barrier plank will be reflected back by the facets according to the direction of approach so the plank will be readily visible to the driver. Between the ridges the plank has alternate red and white reflective surfaces to reflect back light directed at normal or near normal angles to the plank.

REFERENCES:
patent: 2542894 (1951-02-01), Blanchard
patent: 3802378 (1974-04-01), Kessler
patent: 3905680 (1975-09-01), Nagel
patent: 3989351 (1976-11-01), Bjorlund
patent: 4182548 (1970-01-01), Searight et al.
patent: 4236788 (1980-12-01), Wyckoff
patent: 4312600 (1982-01-01), Schaaf et al.
patent: 4383782 (1983-05-01), Pillifant, Jr.
Brochure, "Chapter 8 Reflective/Dayglo Scarecrow Pendant Hazard Barrier", Glasdon Limited.
Brochure, "Scarecrow New Multicolor Reflective Hazard Barrier", Glasdon Limited.

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