Patent ID: 9399874
Filing Date: 2016-07-26
CPC Classification: E04F

Claim Text:
1. A method of producing a capping structure for covering a pre-existing stair structure having a bull nose, the method comprising: providing a generally rectangular, generally planar tread element, and machining a groove in a surface of said tread element proximal a longitudinal edge thereof, said groove being machined to extend substantially the entire length of one side of said tread element; providing a generally rectangular cap precursor element which is sized in at least one dimension to have a thickness which is approximately equal to the width of said groove and which is sized in at least one other dimension to have a length approximately equal to the length of said groove; gluing said cap precursor element to said groove so that the width and length of said groove and said cap precursor elements are substantially spatially aligned; machining joined outward facing surfaces of said tread element and said cap precursor element to form a convex, bull nose shaped configuration; affixing a wear resistant, decorative thin laminate sheet to an upper surface of said tread element and to said convex, bull nose shaped configuration; and machining a surface of said cap precursor element located on a side of said cap precursor element which is substantially opposite said convex, bull nose shaped configuration to have a concave radius, such radius being suitably sized to form a recessed portion in said cap precursor element which is configured to mate with an existing bull nose of a stair tread.