Patent ID: 7418761
Filing Date: 2008-09-02
Classification: A47L,B32B,Y10T

Abstract:
1. A flexible sponge comprising: (a) a flexible foam upper layer having a first side edge, the first side edge being serrated and a second side edge opposed to the first side edge, the second side edge comprising a plurality of convex arcuate lobes, the upper layer being a flexible foam material, (b) a reticulated foam material intermediate layer having a first serrated side edge and an opposed second side edge, the second side edge comprising a plurality of convex arcuate lobes, (c) a flexible foam lower layer having a first serrated side edge and having an opposed second side edge, the second side edge comprising a plurality of convex arcuate lobes, and wherein the three layers are bonded together such that the serrated side edges are coincident and the convex arcuate lobes on the second side edges are coincident.