Patent ID: 6241041
Filing Date: 2001-06-05
Classification: A61F,H04R

Abstract:
An earplug comprising:a unitary molded earplug having an axis that extends in forward and rearward directions, having an elongated central stem portion which extends along said axis and which has forward and rearward stem portion ends, and having a plurality of hollow truncated cone elements including a first cone element, with each of said cone elements having an apex end part merging with said stem portion and having a rear end part with an extreme rear end, and with each cone element extending with rearward (R) and radially outward (A) directional components from its apex end part along most of the axial length of the cone element to its extreme rear end, said apex end parts of said cone elements being spaced apart along said stem;said rear end part of said first cone element having a maximum thickness which is no more than 7 percent of the diameter of said extreme rear end, and said cone rear end part having an outer surface forming an included angle of between 50.degree. and 85.degree. as seen in a sectional view taken perpendicular to said axis.