US Patent 7390979 Conduit connector assembly

A conduit connector assembly which receives an end of a conduit carrying electrical wires includes a body, a grommet and a spring clip. The grommet and the spring clip are each mounted to the body. The spring clip is disposed within an interior bore of the fitting body and has a resiliently flexible body and a leg having a gripping end portion. The grip end has a substantially scalloped configuration for gripping and fitting partially about the conduit so as to center the grip end of the spring clip body on the conduit. The spring clip also includes a latching member to couple with the body to hold the spring clip in position and apply a biasing tension of the gripping end of the leg against the conduit. The grip end having the scalloped configuration is in the form of an arcuate concave-shaped edge surface on the gripping end portion of the body. The grip end of the spring clip body makes line contact with an inner convolution on an exterior of the conduit and makes at least a single point contact with an outer convolution on the exterior of the conduit. The grip end may be disposed at a predetermined angle for matching a predetermined pitch angle of the convolutions on the exterior of the conduit and thereby make line contact with the inner convolution on the exterior of the conduit and make a pair of point contacts with the outer convolution on the exterior of the conduit.