Tactile tile

Claim 2

In a tactile tile having a flat plate with a plurality of raised areas, said plate and raised areas comprised of polyurethane, wherein said polyurethane has a taber abrasion resistance of less than 500 milligrams per ten thousand cycles based on ASTM method D with a H-18 wheel.

Claim 3

In a tactile tile as claimed in claim 1 wherein said plate and raised area is comprised of thermo plastic polyurethane.

Claim 4

In a tactile tile having a flat plate with a plurality of raised areas, said plate and raised areas comprised of polyurethane wherein said polyurethane exhibits a -40° centigrade glass transition temperature.

Claim 5

In a tactile tile having a flat plate with a plurality of raised areas, said plate and raised areas comprised of polyurethane wherein said polyurethane exhibits a -40° centigrade glass transition temperature.

Claim 6

In a tactile tile as claimed in claim 2 wherein said thermo plastic polyurethane has a tear strength higher than 20 lbs. per linear inch.

Claim 7

In a tactile tile as claimed in claim 4 wherein said thermo plastic polyurethane exhibits a -40° centigrade glass transition temperature.

Claim 8

In a tactile tile as claimed in claim 5 wherein said thermo plastic polyurethane has an elongation at break of better than 350%.

Claim 9

In a tactile tile as claimed in claim 6 wherein said thermo plastic polyurethane has a modulus of elasticity of greater than 1,000 lbs. per square inch at 100% elongation.

Claim 10

In a tactile tile as claimed in claim 7 wherein said thermo plastic polyurethane has a tensile strength of greater than 2,000 lbs. per square inch.

Claim 11

In a tactile tile as claimed in claim 8 wherein said flat plate has a rectangular peripheral edge.

Claim 12

In a tactile tile as claimed in claim 9 wherein said raised areas are spaced from one another and diagonally disposed on said flat plate.

Claim 13

In a tactile tile as claimed in claim 10 wherein said raised areas are circular.

Claim 14

In a tactile tile as claimed in claim 11 wherein said raised areas are bar shaped.

Claim 15

In a tactile tile as claimed in claim 12 wherein said flat plate presents an upper surface and a lower surface, said raised areas disposed on said upper surface.

Claim 16

In a tactile tile as claimed in claim 13 wherein said lower surface has an adhesive for adhering said tactile tile to a sidewalk or a road surface.

Claim 17

In a tactile tile as claimed in claim 14 wherein said adhesive comprises an epoxy or urethane adhesive.

Claim 18

In a tile for positioning on a road surface to provide direction for visually handicapped persons comprising: (a) a flat plate having an upper surface and a lower surface; (b) a plurality of raised areas diagonally disposed on said upper surface; (c) an epoxy adhesive presented on said lower surface for adhering said tile to said road surface; (d) said flat plate and plurality of raised areas comprised of thermo plastic polyurethane having a -40° centigrade glass transition temperature so as to resist shearing of said raised areas from said flat plate in cold temperatures.

Claim 19

In a tile for positioning on a road surface to provide direction for visually handicapped persons comprising: (a) a flat plate having an upper surface and a lower surface; (b) a plurality of raised areas diagonally disposed on said upper surface; (c) an epoxy adhesive presented on said lower surface for adhering said tile to said road surface; (d) said flat plate and plurality of raised areas comprised of thermo plastic polyurethane having a -40° centigrade glass transition temperature so as to resist shearing of said raised areas from said flat plate in cold temperatures.

Claim 20

In a tile as claimed in claim 16 wherein said plurality of raised areas are capable of being detected through the sole of a shoe.

Claim 21

In a tile as claimed in claim 17 wherein said raised areas are spaced from one another.

Claim 22

In a tile as claimed in claim 18 wherein said raised areas are circular.

Claim 23

In a tile as claimed in claim 19 wherein said raised areas are bar shaped.