Patent ID: 8327973
Filing Date: 2012-12-11
Classification: A61F,B29C,B29K,Y10T

Abstract:
1. A sound control device including an earpiece member for placement in close proximity to an ear canal of a user for attenuating sound, the earpiece member comprising: a non-reticulated polymeric foam material having a plurality of cells defined by interconnected cellular walls of the polymeric foam material and a plurality of pores extending through the cellular walls between adjacent cells to interconnect adjacent cells of the polymeric foam material; wherein the average volume of the cells of the polymeric foam material is between about 8,000 microns wherein the average diameter of the pores of the polymeric foam material is between about 5 microns to about 50 microns; and wherein a ratio between the average diameter of the pores to an average diameter of the cells is between 0.02 to 0.75.