Device for transferring liquified gas

Details Device for transferring liquified gas Device for transferring liquified gas

1973-02-22

1976-04-20

O'Dea, William F.

Refrigeration

Low pressure cold trap process and apparatus

137468, 236 99R, 251 95, 251111, F17C 1702

Patent

active

039509591

ABSTRACT:
A device for controlling the transfer of liquefied gas from a storage tank to a consumer apparatus or circuit, comprises a closing valve placed in the transfer circuit linking the storage tank and the consumer apparatus. A device locks the valve in the operative or inoperative state, to maintain a valve in the open or closed position. Control means normally attract the valve in the direction of opening when the valve is closed and conversely in the direction of closure when the valve is opened. A working device controlled from outside acts on the locking device to move it from the operative to the inoperative state.

REFERENCES:
patent: 2971741 (1961-02-01), Eppler et al.
patent: 3054273 (1962-09-01), McGrath
patent: 3091394 (1963-05-01), Sparrow
patent: 3239189 (1966-03-01), Ray
patent: 3362177 (1968-01-01), Case
patent: 3366139 (1968-01-01), Shaw
patent: 3386065 (1968-05-01), Algino
patent: 3401605 (1968-09-01), Born

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