Patent ID: 8333269

Claim:
A wheel suspension system for a vehicle, said wheel suspension system comprising: a support structure having an aperture and adapted to be mounted to the vehicle; a piston rod at least partially disposed within said aperture and displaceable relative to said support structure along a line of travel; a plate mounted to said piston rod and moving relative to said support structure during said displacement of said piston rod; and an insulator compressibly disposed between said support structure and said plate with said insulator formed of an elastomeric material and presenting an exterior surface adjacent at least one of said support structure and said plate with said exterior surface defining a channel extending into said elastomeric material; said elastomeric material defining a first portion defining a first density; said elastomeric material defining an increased density about said channel with said increased density greater than said first density; wherein said elastomeric material defines an intermediate density transitioning between said first density and said increased density.