Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1991-06-20
1992-03-03
Schwadron, Martin P.
Fluid handling
Systems
Flow path with serial valves and/or closures
285316, 285 29, F16L 3728
Patent
active
050923641
ABSTRACT:
A push-to-connect, pull-to-disconnect ball detent coupling has a socket, a plug, detent balls carried by the socket for holding the plug in coaxial coupled relation, and a collar with two interlocking sleeves forming a channel. The channel receives a spring biased plunger for moving the collar to actuate the detent balls. The collar is biased so that when the socket and plug are disconnected, the ball detents are not maintained in a fixed position. The plug enters the socket through an orifice in the plunger and engages the balls and the plunger to compress the plunger spring. On further insertion of the plug into the socket, the retaining balls move inwardly into an annular groove on the plug and release the collar. The compressed spring then causes the collar to snap so that a projecting shoulder on the inner sleeve of the collar holds the balls in place in the annular groove in the plug and the socket and plug are locked in coupling engagement. To release the plug from the socket, an operator pushes the collar against the spring so that an annular groove on the inner surface of the collar comes into registry with the ball retaining apertures thereby releasing the balls from the annular groove in the plug. The spring in combination with spring biased valves in the flow passage through the coupling force the plug out of the socket.
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Lee Kevin L.
Perfecting Services, Inc.
Schwadron Martin P.
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