Patent ID: 6988747

Claim:
A tube coupling, comprising; a central body defining a fluid flow path extending therethrough; a retainer collet mounted on said central body at one end of said flow path for slidably receiving and supporting one end of a length of tubing in flow communication with said flow path, said retainer collet including an outer retainer shell supporting a plurality of lock fingers in a generally annular array for engaging an exterior surface of the tubing end to prevent retraction thereof from said retainer collet; a seal member including a generally annular and flexible seal lip for engaging the exterior surface of the tubing end, said seal lip sealingly engageable with said tubing end exterior surface within a range of diametric tubing sizes, wherein said seal member comprises a generally annular base ring portion interposed between said lock fingers and one axial end of said central body, said seal lip extending from said base ring portion generally radially inwardly and axially in an inboard direction relative to said central body; and an internal shoulder formed within said collet shell for seated support of an outboard axial end of said seal member base ring portion.