(under the class definition) Apparatus specifically designed for effecting crystallization by evaporation in combination with means for collecting the crystals and discharging them from the evaporator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
25.1+, for rotating scraper arms.
33, for rakes or scrapers for graining and raking crystals from the bottom of open pans.
SEE OR SEARCH CLASS
117, Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor, for processes and non-coating apparatus for growing therein-defined single-crystal of all types of materials, including use of or means including a concentrating evaporator.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, 129+, or 245.1+ for non-coating crystallizer apparatus excluded from Class 159 and not provided for elsewhere.