Valve construction for quick-closure coupling

Details Valve construction for quick-closure coupling Valve construction for quick-closure coupling

1981-04-10

1983-07-26

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

2511496, 285102, F16L 3728

Patent

active

043948740

ABSTRACT:
A socket valve of a quick-coupling for fluid lines under pressure has a sliding sleeve into an end recess of which a portion of a plug valve of the coupling is insertable, to be held by locking means. The sleeve is movable between a securing position in which it holds the locking means in locking position, and two axially displaced release positions in which it permits the locking means to release the plug valve. The sleeve is spring-biased to the securing position. As an additional safety factor, the sleeve is surrounded by an annular chamber at least one open end of which receives an annular piston. The chamber is communicated with the pressure fluid in the valve so that, when the sleeve is in the securing position, the fluid pressure biases the piston to a position in which it prevents accidental uncoupling of the plug valve, even in the event the biasing spring for the sleeve should break.

REFERENCES:
patent: 2017994 (1935-10-01), Spang
patent: 2921801 (1960-01-01), Beyer
patent: 3215161 (1965-11-01), Goodwin et al.
patent: 3500859 (1970-03-01), Pearson
patent: 3791411 (1974-02-01), Bogeskov et al.
patent: 4350321 (1982-09-01), Berg

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