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US 2007/0172688 A1Published application
Locking engineered wood flooring
OwnerDavid Reichwein, Moon Kim +1inventors
InventorsDavid Reichwein, Moon Kim, Fang Qiao
Life of this patent
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OwnerDavid Reichwein, Moon Kim +1inventors
InventorsDavid Reichwein, Moon Kim, Fang Qiao
Estimating the term…
A plywood laminate having dimensional stability and resistance to warping and delamination is formed from a plurality of higher quality plies and a plurality of lower quality plies. The higher quality plies may be of hardwood and the lower quality plies may be of softwood or lower quality hardwoods, or the higher quality plies may have a veneer grade of better than ANSI/HPVA HP-1-2000 veneer grade C and the lower quality plies may have a veneer grade of no greater than ANSI/HPVA HP-1-2000 veneer grade C. The exposed plies are of the higher quality. In most embodiments, at least two adjacent interior plies are of the lower quality. In those embodiments having a tongue and groove or click-lock edge configuration, the tongue comprises portions of at least two plies and at least one of the plies is a higher quality ply.
A decorative plywood laminate comprising a plurality of plies, at least one edge configuration of the plywood laminate being selected from the group consisting of a tongue configuration and a groove configuration, wherein the edge configuration when mated with the edge configuration of a second decorative plywood laminate forms a locking connection that prevents substantial separation the mated decorative plywood laminates in a direction perpendicular to the plane of the mated decorative plywood laminates and in a direction parallel to the plane of the mated decorative plywood laminates and perpendicular to the mated edges of the mated decorative plywood laminates, the edge configuration including a projection, the thickness of the projection being greater than the thickness of each of the plies forming the decorative plywood laminate.
A decorative plywood laminate comprising a plurality of plies, at least one edge configuration of the plywood laminate being selected from the group consisting of a tongue configuration and a groove configuration, wherein the edge configuration when mated with the edge configuration of a second decorative plywood laminate forms a locking connection that prevents substantial separation the mated decorative plywood laminates in a direction perpendicular to the plane of the mated decorative plywood laminates and in a direction parallel to the plane of the mated decorative plywood laminates and perpendicular to the mated edges of the mated decorative plywood laminates, the edge configuration including a projection, the projection having an upper surface and a lower surface spaced from the upper surface, at least one adhesive layer being interposed between the upper surface and the lower surface of the projection.
A decorative plywood laminate comprising a plurality of plies, at least one edge configuration of the plywood laminate being selected from the group consisting of a tongue configuration and a groove configuration, wherein the edge configuration when mated with the edge configuration of a second decorative plywood laminate forms a locking connection that prevents substantial separation the mated decorative plywood laminates in a direction perpendicular to the plane of the mated decorative plywood laminates and in a direction parallel to the plane of the mated decorative plywood laminates and perpendicular to the mated edges of the mated decorative plywood laminates, the edge configuration including a projection, the projection comprising portions of at least three plies.
Dependencies are inferred from the claim text.