Patent ID: 7478840

Claim:
A coupling for a pipe comprising: a housing of a relatively rigid plastics material having a central bore, an outer surface, an inner surface tapered substantially along its entire length, and an external ledge adjoining said outer and inner surfaces; one or more retaining members each comprising a retaining surface that is tapered substantially along its entire length for retaining a pipe within said housing when the pipe is pushed into the housing; and a continuous layer of a relatively deformable material, distinct from the retaining members, disposed on at least a part of the inner surface, the external ledge, and at least a part of the outer surface of said housing such that said continuous layer 1) deforms along the tapered inner surface against an outside of any pipe within a size range that is inserted into the housing to form a diametrical sealing engagement and 2) has a part formed on said outer surface of said housing to provide a seal with a cooperating member.