Patent ID: 7316408

Claim:
An apparatus for use in resisting torsional forces of a mounting member, comprising: a housing having a retaining member with open ends; a resilient member retained by said retaining member of said housing and defining a cavity having open ends aligned in the direction of said open ends of said housing, said resilient member made of urethane and having a durometer value between 50 Shore A and 60 Shore D; an insert retained in said cavity of said resilient member, said insert defining an aperture aligned in the direction of said open ends of said cavity of said resilient member, wherein said aperture is defined at least partially by four flat surfaces; and a mounting member having four flat sides that extend in the direction of said open ends of said cavity of said resilient member, wherein said mounting member is disposed through said cavity of said resilient member so as to extend from one end of said resilient member to an opposite end of said resilient member, said mounting member contacting said insert such that each one of said four flat sides of said mounting member contact a complimentary one of said flat surfaces of said insert, wherein said resilient member is arranged with respect to said mounting member such that said mounting member does not act to compress said resilient member in the direction from said one end of said cavity of said resilient member to the other said one end of said cavity of said resilient member.