Patent attributes
A floor covering panel made of a hard laminated assembly including a wood-base core includes coupling parts formed in one piece with the core, wherein the coupling parts provide locking elements for preventing the drifting apart of coupled panels in directions perpendicular to the mutual edges along which the panels are coupled and perpendicular to the mutual edges and parallel to a plane including coupled floor panels, and further wherein the mechanical locking elements include an upper surface portion of the tongue extending toward the panel upper side and cooperating with a portion of an upper wall of the groove in which the tongue is coupled in locking relationship, and wherein a portion of the upper surface of the tongue includes the surface sloping away from the panel upper side in a distal direction of the tongue at the distal upper end area of the tongue.
