Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1991-03-11
1992-06-23
Chambers, A. Michael
Fluid handling
Systems
Flow path with serial valves and/or closures
13761405, 285313, 285316, 285900, F16L 3728
Patent
active
051234475
ABSTRACT:
A quick disconnect coupling for connecting together two conduits in a high pressure fluid-carrying system. The coupling includes a female part (coupler) and a male part (nipple) each provided with a flow through channel, and each provided with a cut-off valve. The nipple is designed to be inserted into the flow-through channel of the coupler to cause the two parts automatically to be firmly latched together and to be sealed to one another during a pre-mating condition, without opening cut-off valves in the nipple and coupler. This initial pre-mating action isolates any fluid contained in the two parts of the coupling from the environment. Then, an axial force applied to the outer housing of the coupler causes both the nipple and coupler valves to open to establish fluid flow through the coupling. Pressure balancing features are incorporated into the valves to permit the use of significantly lower axial force to open valves as compared with the force required to open the valves of the prior art couplings of the same general type.
REFERENCES:
patent: 2837352 (1958-06-01), Wurzburger
patent: 3039794 (1962-06-01), DeCenzo
patent: 3224728 (1965-12-01), Buseth et al.
patent: 4007909 (1977-02-01), Buseth et al.
patent: 4596272 (1986-06-01), Medvick et al.
patent: 4982761 (1991-01-01), Krezko et al.
Alandy Jose M.
Calvin John H.
Wakasa Jack Y.
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