Patent ID: 8863915

Claim:
A cushion for reducing uneven frictional drag between a disc brake pad and a disc brake rotor caused by irregularities on a friction face of the disc brake rotor, the cushion comprising: a cushion shape, the cushion shape allowing the cushion to fit between a force producing element of the disc brake assembly and a brake pad backing plate; the cushion placed between the force producing element and the brake pad backing plate, the cushion positioned to prevent the force producing element from directly contacting the brake pad backing plate; the cushion having a thickness to accommodate lateral movement of the brake pad as the pad passes the irregularities of the friction face; the cushion comprising resilient elastomeric material with Compression Set of less than about 30% when tested at about 200 C for about 70 hours, resilient response at frequencies from about 1 Hz. to about 500 Hz to accommodate lateral movement as the disc brake pad passes the irregularities of the friction face, and Tan Delta of from about 0.01 to about 0.4 at frequencies from about 10 Hz. to about 30 Hz. and temperatures from about ambient temperature to about 204 C; and the cushion preventing generation of excessive heat caused by the uneven frictional drag arising from interaction between the irregularities and the brake pad.