(under subclass 155) Apparatus in which the separation is effected or enhanced by the energy of compressional vibratory waves in a fluid medium, the waves being below, within, or above the audible spectrum.
(1) Note. Pressure pulses in a fluid generated merely by
intermittent discharge of a gas are not considered to be compressional vibratory waves under this definition. However, compressional vibratory waves under this definition may be produced by intermittent discharge of a gas, as in a siren.
SEE OR SEARCH THIS CLASS, SUBCLASS:
176+, for defoaming apparatus not using sound waves.
389, for other gas separation apparatus using sound waves.
SEE OR SEARCH CLASS
95, Gas Separation: Processes, 30, for processes of degasifying liquid using sound waves.
