Patents for apparatus or parts directed to physical treatment of the condensate, such as filtering, decanting, aerating or reboiling, when in combination with the elements of the still or limited to the distilling art. Treatment of the condensate of thermolytic distillation is here unless provided for in the thermolytic subclasses.
SEE OR SEARCH CLASS
122, Liquid Heaters and Vaporizers,
441, and 448.1 for feed-water reboilers.
208, Mineral Oils: Processes and Products,
188, and 349.
210, Liquid Purification or Separation, appropriate subclasses, particularly
294+, for diverse separators, subclasses 348+ for filters and subclasses 513+ for gravitational separators.
