(under subclass 422) Rotating chutes or tables on which material having constituents of differing mass is treated with accompanying or added liquid, so that the heaviest constituents may settle as a stratum, while the lighter either form overlying strata or may be carried away by the liquid.
(1) Note. Cases in which the lighter constituents form strata succeeding the stratum of heaviest in the direction of liquid flow may be included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
435, for chutes and tables which both reciprocate and rotate.
