Patent ID: 8157071

Claim:
A torque transmitting device comprising: a reaction plate having a pressing face for exerting a compression force; a friction plate disposed adjacent the reaction plate; a friction layer disposed on the friction plate and having a friction face opposing the pressing face, the friction layer having a coefficient of friction that is sufficient to prevent relative rotation of the reaction and friction plates when the friction layer is compressed by the pressing face; and at least one compression limiting member disposed on one of the friction plate and the friction layer, the at least one compression limiting member having a compression surface disposed between the friction face and the friction plate, wherein the at least one compression limiting member limits compression of the friction layer as the pressing face at least partially contacts the at least one compression limiting member, and wherein the at least one compression limiting member has a predefined height, and wherein the predefined height of the at least one compression limiting member is at least one of substantially equal to a thickness of the friction layer after the friction layer has been compressed when the torque transmitting device is in a high speed slip operating condition and greater than a thickness of the friction material layer after the friction layer has been compressed when the torque transmitting device is in a low speed slip operating condition.