Patent ID: 6942255

Claim:
A fitting connection for a pressure vessel, the fitting connection comprising: a cylindrical bushing body having a cylindrical outer surface and defining a longitudinal axis; a head portion located at an upper end of the bushing body and defining a lower surface; a passage through the bushing body for passage of a fluid; at least one locking member having a base portion extending radially from the outer surface of the bushing body, the at least one locking member having an upper surface on the base portion located in spaced relation to the lower surface of the head portion to define a groove for receiving an edge surrounding an aperture in a pressure vessel wall; the upper surface including a contour varying the distance between the upper surface and the lower surface of the head portion whereby rotation of the bushing within the aperture produces a predetermined frictional force between the locking member and the pressure vessel wall; the upper surface of the at least one locking member includes a recess for receiving a detent located on the pressure vessel wall, said recess being spaced inward from each end of the upper surface of the at least one locking member.