Patent ID: 8801526

Claim:
An NVH-reducing drive shaft damper, comprising: a substantially cylindrical paperboard structure defining an inner surface and an outer surface; and foam applied to the outer surface of said substantially cylindrical paperboard structure; wherein said foam has (i) a density of between about 1.0 lb/ft 3 and 3.0 lbs/ft 3 , (ii) an indent-force deflection at 25 percent of between about 28 psi and 36 psi, (iii) a tensile strength of at least about 10 psi, (iv) a tear strength of at least about 1.0 psi, and (v) a minimum elongation of at least about 100 percent; and wherein said foam extends above the outer surface of said substantially cylindrical paperboard structure, and wherein said foam substantially covers the entire outer surface of said substantially cylindrical paperboard structure and has an uncompressed thickness of between about 0.25 inch and 2.0 inches.