Patent ID: 7484772

Claim:
A pipe assembly, comprising: a pipe made of rigid material; and a pipe casing made of rigid material and extending into an end of the pipe; wherein the pipe casing has an exterior mantle surface with at least two recessed portions of reduced diameter extending circumferentially around the pipe casing; and wherein the pipe has embossed portions extending radially inwardly into the recessed portions of the pipe casing so as to limit relative longitudinal movement of the pipe and the pipe casing while permitting relative rotational movement of the pipe and the pipe casing; said pipe assembly further comprising a sealing member disposed between a radially inner surface of the pipe and the mantle surface of the pipe casing and extending circumferentially around the pipe casing, the sealing member being seated within a groove that is formed in the mantle surface of the pipe casing, between two of said at least two recessed portions, such that the exterior surface of the pipe is free of radially outward protrusions at the axial position of the sealing member.