FLOOR COVERING Russian patent published in 2006 - IPC E04F15/00 

FIELD: building, particularly floors formed of tile material.

SUBSTANCE: floor covering comprises a number of tiles. Each tile is provided with two lower tetrahedral extensions formed on tile edges and defining the first right intersection angle and two upper tetrahedral extensions formed on another tile edges and defining the second right intersection angle, which is diagonally opposite to the first angle. Floor coveting tiles are formed of thermoplastic composite material reinforced with net. Lower surface of each tile has pyramid extensions with apexes facing floor base. The extensions define crossing venting channels. Height of each extension is equal to 0.7-0.3δ, distance between adjacent apexes is 6.0-10.0δ, where δ is tile thickness without extensions.

EFFECT: increased wear resistance, strength and operational reliability.

6 cl, 4 dwg