Quick-acting coupling

Details Quick-acting coupling Quick-acting coupling

1989-10-18

1990-11-20

Fox, John C.

Fluid handling

Systems

Flow path with serial valves and/or closures

13761405, F16L 2900

Patent

active

049711075

ABSTRACT:
A first coupling (51) and a second coupling (52) composing a quick-acting coupling (26) are respectively provided with check valve bodies (54)(154) and non-spill valve bodies (55)(155). When both the couplings (51)(52) are manipulated for the disconnection thereof, a leak of liquid is adapted to be prevented by means of the respective check valve bodies (54)(154) as well as a spill of liquid is adapted to be prevented by means of the non-spill valve bodies (55)(155). The respective non-spill valve bodies (55)(155) are fitted slidably inside respective non-spill valve port surfaces (71)(171) so as to carry out a liquid sealing respectively. Further, at the time of disconnecting manipulation of the coupling (26), a volume of the liquid phase portion within a non-spill valve casing chamber (63) is adapted to be increased by the movement of a non-spill valve casing (56) in which the first non-spill valve body (55) is fitted.

REFERENCES:
patent: 4509554 (1985-04-01), Gailla
patent: 4540021 (1985-09-01), Rogers
patent: 4564042 (1986-01-01), Ehrman

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