Patent ID: 7984716
Filing Date: 2011-07-26
Classification: A61F

Abstract:
1. A self-conforming sound attenuation earplug comprising: a stem made of a stem material and having a stem ear end and an opposite stem user end; at least one support joined with the stem and made of a support material and having at least a part of the support located between the stem ear end and the stem user end; at least one stiffening rib extending between the support and the stem: a shell made of a shell material and engaging an outer circumference of at least a portion of the support and encircling at least a portion of the stem wherein a space is formed between an inner circumference of the shell and an outer circumference of the stem and the shell has a shell ear end and an opposite shell user end and a tapered exterior that increases in circumference when moving from the shell ear end to the shell user end and wherein the support material is a deformable-resilient material; wherein the shell and the support are formed independent of one another and composed of a different type of material, and wherein the support extends radially outward from the stem and over a portion of the stem, and wherein the stem material and the support material each comprise a deformable-resilient material having a Shore A Durometer Hardness value between about 10 and about 45.