Control valve

Details Control valve Control valve

1976-10-08

1977-12-06

Rosenthal, Arnold

Fluid handling

Systems

Valves with separate, correlated, actuators

137861, 128142R, F16K 1122

Patent

active

040611604

ABSTRACT:
A fluid control valve being a combination of a needle valve and a gate valve disposed in a manifold sleeve having an inlet, a sensor outlet and a fluid outlet. The control valve is so constructed that the gate valve controls fluid flow through the inlet and the needle valve meters fluid flow through the outlet. Simultaneously, upon opening of the gate valve and needle valve and at all times when fluid is flowing through the control valve, fluid in the form of a reference pressure is present at the sensor oulet. Control valves according to the present invention are ideally suited for use in anesthesia machines for dispensing oxygen gas into the patient breathing circuit.

REFERENCES:
patent: 2970822 (1961-02-01), Ernest
patent: 4008716 (1977-02-01), Amlong

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