Patent ID: 9015924
Filing Date: 2015-04-28
Classification: B44C,E04F,Y10T

Abstract:
1. A method of making a panel for use in a covering comprising: providing a panel comprising an upper surface and a lower surface each extending within a different main plane, and at least an edge between these surfaces, machining the edge to form a coupling to couple the panel to a coupling of another panel and to provide the upper surface with a lowered part at said edge of the panel, wherein machining comprises machining the edge such that the lowered part is provided with a cross-section perpendicular to the edge of the panel which varies along the edge of the panel, and wherein machining the edge to provide the lowered part comprises first machining a lower section of the lowered part such that the lower section has a constant cross-section along the length of the edge, and then forming an upper section having a varying cross-section along the length of the edge.