Patent ID: 8734048

Claim:
A flexible marking device for a roadway, said device comprising: an elongated spline having a first side, an opposite second side, a first end and an opposite second end, a top surface and an opposite bottom surface, a spline length from the first end to the second end, a spline width from the first side to the second side, and spline thickness from the top surface to the bottom surface; a protrusion attached to the top surface of the spline, said protrusion having an outer surface, a profile shape, a protrusion length, a protrusion width and a protrusion height, the protrusion width being less than the spline width and the protrusion height being at least ½ inch; said spline further including a first flange coextensive with the first side and a second flange coextensive with the second side, and said protrusion being attached to the spline between the first flange and the second flange; a plurality of spaced apart notches in the first flange, said notches facilitating bending of the device, each of the plurality of spaced apart notches comprising a v-shaped notch with a circular stress relief vertex, said second flange being devoid of said notches; a plurality of spaced apart attachment holes in the first flange and the second flange, the holes in the first flange being spaced apart and located between the spaced apart notches in the first flange, and the holes in the second flange being spaced apart and located in the second flange at locations in the second flange between the holes in the first flange; and a plurality of spaced apart retro-reflective elements attached to the outer surface of the protrusion; each of the retro-reflective elements covering a portion of the protrusion from about the first flange to the second flange; and a pressure sensitive roadway attaching adhesive attached to the bottom surface of the spline.