Patent ID: 6478964
Filing Date: 2002-11-12
Classification: A01K,B01F,C02F,Y02W

Abstract:
Apparatus for aerating liquid held in a containment structure, comprisinga gas distribution means defining at least one input aperture and a plurality of output apertures for receiving, conveying, and outputting a supplied gas; a plurality of fine-bubble producing means, equal in number to the number of output apertures, in communication with the output apertures, for receiving a gas, forming fine bubbles of the gas, and discharging the fine bubbles into a liquid held in a containment structure within which said fine-bubble producing means are submerged, said fine-bubble producing means being configured to discharge the bubbles substantially in a plane; a floatation means, independent from said gas distribution means and said fine-bubble producing means, for maintaining said fine-bubble producing means substantially in a horizontal plane and submerged at a selected depth below a top surface of the held liquid when said gas distribution means and said fine-bubble producing means are placed in the held liquid, absent vertical support from the containment structure.