Patent ID: 9080329
Filing Date: 2015-07-14
Classification: E04F

Abstract:
1. A surface covering comprising panels and at least one extraneous locking element, each panel provided with parallel, opposing longitudinal edges and parallel, opposing transverse edges, these edges being provided with respective longitudinal and transverse coupling means which are adapted to connect similar panels at corresponding adjacent edges, whereby the transverse coupling means are adapted to lock panels perpendicular to adjacent transverse panel edges and parallel to the panel plane, the transverse coupling means in coupled condition forming a channel which is adapted to receive the extraneous locking element, the longitudinal coupling means comprise a tongue on one edge and a corresponding groove on the opposing edge, the longitudinal coupling means being adapted to lock similar panels perpendicular to adjacent longitudinal edges and perpendicular to the plane of the panels as well as parallel to the plane of the panels, whereby the longitudinal coupling means are adapted to be locked with angling and the transverse coupling means are adapted to be locked with vertical folding, wherein a lower lip of the groove is provided with a lower lip contact portion positioned at a lower lip contact portion height h