(under subclass 56) Processes including making a solid refrigerating medium in situ by a refrigeration cycle, to be used to cool during high refrigeration demand or failure of the cycle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
139, for automatic control of accumulation of ice on a freezing surface.
434+, for apparatus using a fluid or an isolated nonliquid holdover.
529+, for a refrigerant or coolant storer or handler, e.g., a container for a freezable material.
