Patent ID: 6902792
Filing Date: 2005-06-07
Classification: B32B,Y10T

Abstract:
1. A pad structure comprising: a frame comprising plural interlaced members, each of said interlaced members including a top surface, a bottom surface and two side surfaces, said frame including plural grids therein; a first layer made of heat deformable material and comprising a bottom surface having a first portion and a second portion, said first portion of said bottom surface of said first layer being secured to said top surfaces of said interlaced members of said frame, said first layer forming plural upwardly protrudent arc surfaces on top of said grids and in said second portion of said bottom surface of said first layer that is not secured to said top surfaces of said interlaced members of said frame; and a second layer made of heat deformable material and comprising a top surface secured to said bottom surfaces and said side surfaces of said interlaced members and also secured to said second portion of said bottom surface of said first layer, and said second layer protrudent upwardly in said grids.