Abstract: The invention described is a plastic electrical connector characterized by a coupling ring 1 having two elongated apertures 11 and 14, one of which 14 receives a pin 21 on another housing 2. The elongated aperture 11 allows the portion 16 between the apertures 11 and 14 to deflect when the pin 21 travels between recesses 15 in one side of aperture 14 thereby providing a bias against the coupling ring 1 that helps to prevent accidental uncoupling of the housings 2 and 3.

Abstract: This invention provides a single core pin for use with a mold that may be rearranged to provide a plurality of molded configurations. The core pin is characterized by a plurality of arcuate segments 11 arranged to make up a cylindrical core pin 10. On at least one of the arcuate segments 11 there is along the outer surface thereof at least one radial projection 12 extending a predetermined axial distance along the surface.

Abstract: An anti-rotation feature is disclosed for preventing inadvertent disconnection of electrical connector assemblies of the type including mating plug and receptacle shells positioned in mating relationship with a surrounding coupling nut which threadedly engages one of the members and axially engages the other to draw the same into mating relationship upon rotation of the coupling nut. An elongated rod or axle extends chordally across the interior bore of the coupling nut member, with an axially movable element positioned on the axle by a pair of centering springs. The movable element is in engagement with a series of serrations formed about the periphery of one of the electrical connector components so that the centering springs resist relative rotation between the coupling nut and connector component until the spring resistance is overcome to allow relative rotation between the coupling nut member and the connector components.

Abstract: An anti-vibration arrangement for resisting unthreading rotation between a coupling nut and mated components is disclosed, consisting of a deflectable mandrel extending in a radial plane chordally across an interior bore formed in the coupling nut, which mandrel mounts a slidable ball. The mandrel passes adjacent an outer surface portion of one of the electrical connector components defining a clearance space of a smaller dimension than the ball, while the ball is axially positioned in frictional engagement with the surface portion on either side of the clearance space. Rotation of the nut is resisted only minimally in a direction tending to move the ball away from the clearance space while tending to be wedged by rotation in the opposite direction.