.~.~> Converting energy of expansion to mechanical movement {1}
DEFINITION
Classification: 62/86
(under subclass 56) Processes in which a gas is expanded to such a degree that a discernible drop in the temperature thereof is produced thereby, the gas remaining as such during the cooling operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
613+, 621+, 645+, and 649+, for processes and apparatus for liquefying or solidifying a gas.
115, for processes involving compressing, condensing and evaporating a fluid.
