Patent ID: 6955020
Filing Date: 2005-10-18
Classification: B27F,B27M,E04B,E04F,F16B,Y10T

Abstract:
1. A floor covering panel comprising: an upper side and an under side; said panel formed as a hard laminated assembly including a wood-base core comprising a ground wood product and a binding agent unified to form a cured composite; at least one decorative layer on the upper side of the panel and a backing layer on the underside of the panel; said panel having at least one pair of opposed side edges including coupling parts formed to cooperate with each other to couple similar panels along mutual side edges when brought together; said coupling parts comprising substantially a tongue, a groove and mechanical locking elements all formed in one piece with the core of the panel; said locking elements arranged so that they prevent the drifting apart of coupled panels in a direction perpendicular to the mutual edges along which the panels are coupled and in a direction perpendicular to said mutual edges and parallel to a plane including coupled panels; said mechanical locking elements comprising at least a first upper surface portion of said tongue extending toward said panel upper side, and a portion of an upper wall of said groove formed to cooperate in locking relationship in a direction perpendicular to the mutual edges along which the panels may be coupled with at least a portion of the first upper surface portion of said tongue when similar panels are coupled and said tongue including a second upper surface portion disposed at a distal upper end of the tongue, said second upper surface portion comprising a planar surface sloping away from said panel upper side in a distal direction of the tongue.