(under subclass 170.1) Apparatus having means apart from the mixture handling means for treating or disposing of the froth while it remains in the frothy state either by discharging said froth, by extracting liquid from it, or by storing or retaining it in a separate chamber.
(1) Note. Structures involving foam control within the meaning of subclass 170.1 have been placed in this subclass where the claimed structure includes a passageway for the discharge of foam on the basis of the applicant's disclosure that foam is so discharged rather than gas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
170.4+, for similar structures where only liberated gas is separately handled.
SEE OR SEARCH CLASS
96, Gas Separation: Apparatus, 155+, for degasifying means for liquid, per se.
516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting,
115+, for processes of or compositions for or subcombination compositions for the breaking of or inhibiting of foam colloid systems, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.
