US PATENT SUBCLASS 96 / 176
.~ Defoaming means

Current as of: June, 1999
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96 /   HD   GAS SEPARATION: APPARATUS

155  DF  DEGASIFYING MEANS FOR LIQUID {13}
176.~ Defoaming means {3}
177  DF  .~.~> Centrifugal or rotating separator {1}
179  DF  .~.~> Having flow-through foam restrictor or eliminator (e.g., screen, etc.)
180  DF  .~.~> Having recycle means (e.g., for foam or separated liquid, etc.)

DEFINITION

Classification: 96/176

Defoaming means:

(under subclass 155) Apparatus in which means are provided to remove a substantially stable aggregation of dispersed gas or vapor bubbles (e.g., froth or foam, etc.) from a liquid.

(1) Note. In order to qualify under this definition, the liquid must be disclosed as containing a froth or foam prior to treatment. Apparatus for treating mixtures which may foam or merely contain a composition predisposed to produce a foam after agitation, etc., are classified below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

175, for defoaming means using sound waves.

SEE OR SEARCH CLASS

95, Gas Separation: Processes,

157, for processes of gas separation with liquid contacting and defoaming, and subclass 242 for processes of degasifying liquid by defoaming.