Abstract: A latch cam and groove-type quick disconnect coupling includes a tubular socket having radial openings therethrough on opposite sides thereof, and a latch cam receiving third opening extending radially therethrough at a location circumferentially equidistant from said radial openings. A tubular adapter insertable in the socket carries arcuate recesses in its outer surface at locations alignable with the three radial openings at the time of such insertion. Two coupling handles are pivotally mounted on the socket outer surface, and carry cam heads projectable through said first mentioned pair of radial openings, and into two of said arcuate recesses in the adapter. A latch cam element pivotally mounted on the outer surface of said socket adjacent the third opening through the socket includes a tip which projects through the third opening in the socket, and is selectively movable into one of the arcuate recesses in the adapter.

Abstract: A quick disconnect coupling which includes a tubular male plug defining a groove in the exterior surface thereof. The plug is received in a socket which defines apertures on its opposite sides. These apertures are aligned with the groove in the plug when the plug is sealingly seated in the socket. Two lever arms are pivotally connected to opposite sides of the socket. Each has an elongated handle portion, and a pivot head pivotally connected to said socket adjacent one of the apertures. A cam portion on each pivot head projects through the adjacent socket aperture into camming engagement with the groove. Two pairs of lugs are mounted on opposite sides of the socket with each pair defining aligned pin holes. The lugs in each pair are positioned on opposite sides of one of the handles when the lever arms are in their locking positions. A locking pin is provided having a first straight leg extending through the aligned lug pin holes, and further having a bent angulated leg of generally W-shaped configuration.

Abstract: A quick disconnect coupling element which includes a laterally ported female socket body having a hose-receiving neck projecting therefrom. A pair of spaced lugs are disposed on opposite sides of each of a pair of latching handle ports opening into the female socket body, and each lug pair functions to pivotally support a latching handle having a camming surface located inside the female socket body. A wire safety spring element is mounted adjacent each latching handle and prevents the handle from prematurely unlatching a male coupling element from the female socket body as a result of vibratory forces.