Patent ID: 6948718

Claim:
An annular gasket for providing a seal between two telescopically, co-axially mated sections of pipe, the gasket comprising: a seating portion extending radially and dimensioned to fit within an annular recess in one mated section of pipe; and a sealing portion integrally molded with the seating portion and including a first shoulder portion axially extending from one side of the seating portion and a second shoulder portion axially extending from the other side of the seating portion an axial distance greater than that of the first shoulder portion, the first and second shoulder portions respectively engaging the one mated section of pipe on axially opposite sides of the annular recess, and an arcuate surface extending between the first and second shoulder portions and being disposed to engage the other mated section of pipe at a location axially spaced from the radial axis of the seating portion; wherein the shape of the sealing portion causes the gasket to have an eccentric axis of rotation.