(under the class definition) Apparatus with means for
introducing a material, usually a refrigerating fluid, into a closed circuit from a source external of the circuit, means to provide the refrigerant, to replace a lost portion or to replace one component with another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
77, for related processes.
149, for automatically adding or withdrawing refrigerant relative to a closed system.
SEE OR SEARCH CLASS
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, appropriate subclass for means for transferring a fluid to a receiver of general utility.
