Patent ID: 6168208
Filing Date: 2001-01-02
Classification: E04D,F16L

Abstract:
A grommet for sealing the space between a drain pipe and a leader pipe, comprising: an annular base having an outer surface and an upper end, said annular base defining a first opening; an annular interior wall joined to said annular base at said upper end, said annual interior wall having a cylindrical inner surface defining a cylindrical opening aligned with said first opening, a cylindrical outer surface and a substantially uniform wall thickness, said annular interior wall having a reduced annular waist portion formed in said outer surface at the junction with said annular base portion; and an annular exterior wall extending outwardly from said base in spaced apart relation to said annular interior wall, said annular exterior wall having a convex outer surface and a concave inner surface and being dimensioned such that said convex outer surface and said concave inner surface converge to form a vertex spaced from said annular interior wall, said grommet being symmetrical about an axis through said first opening, and said cylindrical opening and being integrally molded from an elastomeric material.