Patent ID: 6182413
Filing Date: 2001-02-06
Classification: B32B,E04F

Abstract:
An engineered hardwood flooring system comprising a plurality of planks, each plank comprising:a core plank having tongue and groove construction along its lateral edges, the core plank having a top surface and a bottom surface and containing a plurality of holes extending completely through the core plank from the top surface to the bottom surface, said holes being arranged in a pattern for attenuating acoustic energy propagating in the core plank;a hardwood top plate attached to the top surface of the core plank, the hardwood top plate comprising strips of thin hardwood glued together to form a planar hardwood plate; anda backing layer attached to the bottom surface of the core plank; andwherein the engineered hardwood flooring system further comprises a foam underlayment which is located underneath the backing layer and which cushions the planks when the engineered hardwood flooring system is installed over a sub-floor.