Apparatus specially adapted to produce an intimate contact between gases and liquids to exchange properties or mutually modify conditions.
(1) Note. This class includes devices generally known as air and gas washers, air-moisteners, carbonators, carburetors, jet-condensers, coolers, heaters, and the like, operating by direct contact of the two fluids.
Lines with other classes and within this class Processes for gas separation by contacting a gaseous fluid mixture with a liquid and processes of degasifying a liquid by stripping with a gas are classified elsewhere, even if gas and liquid contact apparatus is also claimed, which apparatus, if claimed alone, would be classifiable in Class 261. See References to Other Classes, below.