Patent ID: 7029219

Claim:
A device for holding a piece in a bore, comprising: a cylindrical sleeve having substantially identical chamfered opposite ends and constructed to be inserted into the bore with either end leading and to be held therein by engagement of its outermost surface with an inner surface of the bore, the sleeve having a longitudinal cross-section in which a cylindrical wall thickness of the sleeve is defined by outermost and innermost substantially parallel lines and the chamfered ends are defined by lines that slope from ends of the outermost line toward the innermost line; and an annular bead inside the sleeve extending circumferentially and inwardly from a location on the inner surface of the sleeve that is substantially equi-distant from the opposite ends of the sleeve and having an exposed innermost surface to engage an outer surface of a piece inserted in the sleeve wherein the sleeve and the bead are integrally formed of resilient flexible plastic.