Cryogenic controller device

Details Cryogenic controller device Cryogenic controller device

1974-06-24

1976-02-17

Schwadron, Martin P.

Fluid handling

Systems

Multi-way valve unit

91 47, 62514R, F16K 31385, F16K 1107

Patent

active

039385540

ABSTRACT:
A device providing gas-powered logic responsive to a sensor such as a gas discharging type level probe and actuating valving controlling flow of liquid to be dispensed; and adapted to valving either for a volatile, especially cryogenic liquid utilizing the liquid's vapor pressure from a free gas space in a storage vessel top region as a power source both for control function and for the liquid transfer through a valve to a receiver, or with use of a separate gas supply for powering the probe, logic and amplifier, valving which applies liquid transferring pressure to a free gas space of a source vessel or vents the same for liquid transfer cut off, for volatile or non-volatile liquid.

REFERENCES:
patent: 3303747 (1967-02-01), Demay et al.
patent: 3326239 (1967-06-01), Saint-Joanis et al.
patent: 3519019 (1970-07-01), Rieschel
patent: 3530894 (1970-09-01), Henzgen
patent: 3653408 (1972-04-01), Coiner
patent: 3670771 (1972-06-01), Dewberry
patent: 3812545 (1974-05-01), Lanahan

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