System and method for controlled delivery of liquified gases

Refrigeration – Storage of solidified or liquified gas – Liquified gas transferred as liquid

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62 481, F25J 300

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active

057619115

ABSTRACT:
Provided is a novel system and method for delivery of a gas from a liquified state. The system includes: (a) a compressed liquified gas cylinder having a gas line connected thereto through which the gas is withdrawn; (b) a gas cylinder cabinet in which the gas cylinder is housed; and (c) means for increasing the heat transfer rate between ambient and the gas cylinder without increasing the gas cylinder temperature above ambient temperature. The apparatus and method allow for the controlled delivery of liquified gases from gas cabinets at high flowrates. Particular applicability is found in the delivery of gases to semiconductor process tools.

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