Valved couplings

Details Valved couplings Valved couplings

1978-11-27

1980-11-25

Schmidt, Frederick R.

Fluent material handling, with receiver or receiver coacting mea

Multiple passage filling means for diverse materials or flows

With valve operated by receiver engaging means

141347, B65B 304

Patent

active

042352673

ABSTRACT:
A valved coupling for high pressure fluids, particularly for use with pressure vessels containing gases at pressures above 200 kilograms per square centimeter, the coupling providing a first flow path containing a first valve and a second flow path extending from a point in the first flow path downstream of the first valve to a venting passage and a second valve in the second path, the coupling comprising a bore, a valve operating member which is axially movable in the bore, a valve member which is concentric with the valve operating member and is axially movable relative to the bore and the valve operating member, a first axially facing valve seat on the valve operating member, a second valve seat on the valve member facing in the opposite direction to the first valve seat, and stop means engaged by the valve member not earlier than the closure of the first valve in movement of the valve member in a direction to close the first valve whereby after the first path is closed the second path is opened to vent fluid from the coupling, the second path being closed before the first valve is opened again.

REFERENCES:
patent: 2948307 (1960-08-01), Rittenhouse et al.

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