Road structure – process – or apparatus – Traffic director
Patent
1986-06-13
1987-12-29
Novosad, Stephen J.
Road structure, process, or apparatus
Traffic director
404 15, 404 39, 404 42, 428167, 428172, 428328, 434112, 52177, 52181, 116 63R, 116205, 116DIG17, E01F 900, E01C 520, E01C 522, G09B 2100
Patent
active
047157437
ABSTRACT:
A tile for positioning on walkways, crosswalks and other areas of pedestrian traffic for providing direction and warning to visually handicapped persons. The tile comprises a flat plate having a chamfered edge and including raised bumps coupled to a top surface of the plate and projecting upward therefrom to a maximum height of less than 8 millimeters. A flowable adhesive used at the chamfered edge provides for a tapered seal around the tile or for formation of an expansion joint between two contiguous tiles. The bumps are configured as truncated structure having a larger base and tapered to a top surface which bears the foot traffic. A bottom surface of the tile includes a uniform adhesive layer which enables attachment of the tile to a street surface. A system of tiles for assisting visually handicapped persons across the street is also disclosed and includes a combination of dot and bar tiles oriented to give direction to the pedestrian. An accompanying guide strip is attached at the street surface adjacent the dot and bar tiles and detected with the swing of a cane to lead along the preferred pedestrian course.
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patent: 4490069 (1984-12-01), Cushman et al.
patent: 4620816 (1986-11-01), Kupfer
Letchford John F.
Novosad Stephen J.
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