Patent ID: 8888401
Filing Date: 2014-11-18
Classification: B44C,B44F,E01C,E02D,E04B,E04C,E04F,Y10T

Abstract:
1. A surface covering unit for use in combination with other ones of the of the surface covering units to form a surface covering comprising at least one face comprised of at least one primary rotational tessellation element, the rotational tessellation element including at least two pairs of sides, the sides in each pair of sides having the same length and being images of one another, wherein the sides of one said pair of sides extend from a first vertex and are rotationally spaced from each other, and the sides of a second said pair of sides extend from a second vertex and are rotationally spaced from each other, the first and second vertices being spaced from each other; wherein the sides of said first and second pairs of sides comprise two or more segments, at least one segment being a straight line; wherein all pairs of sides have different lengths, and one pair of sides has a substantially different length than the other pair of sides; and wherein said unit has an irregular configuration, and the surface covering has a natural custom-fitted appearance such that a repeating pattern is not readily apparent.