Patent ID: 8037648

Claim:
A substantially resilient floor tile for making an adhesive-free interlocking engagement with substantially identical floor tiles, the tile having a flat, central portion with respective upper and lower surfaces and straight edges, said tile comprising: a least one substantially rectangularly-shaped edging strip of lesser thickness than one edge of said central portion and joined thereto along a longitudinal axis aligned substantially parallel to the one central portion edge to provide corresponding upper and lower cantilevered strip surfaces; a first set of contiguous male-female interlock elements projecting upwardly from the upper strip surface to a level lower than the plane of said central portion upper surface by a predetermined dimension; wherein each said set of said contiguous male-female interlock elements is formed by a pair of elongated surfaces comprised of walls spaced laterally apart and extending along the longitudinal axis of the strip, wherein a first surface of the surfaces provides a first male interlock element having a substantially triangular shape, and a second surface of said surfaces forms an open-ended first female interlock element configured to receive a first male interlock element of a second panel.