William H Kipple

US Patent:

42072751, Jun 10, 1980

Filed:

Jan 13, 1977

Appl. No.:

5/758900

Inventors:

James L. Stanton - Rochester NY
William H. Kipple - Spencerport NY

Assignee:

General Signal Corporation - Stamford CT

International Classification:

C02C 504

US Classification:

261 93

Abstract:

An apparatus for mixing a liquid and a gas in a tank includes a means for circulating the liquid in the tank and a sparge ring for dispersing gas into the tank. The circulating means includes a plurality of blades extending downwardly from a bottom surface of a disc so that rotation of the blades creates a suction area. The sparge ring introduces gas into the tank in a direction that bypasses the suction area to prevent the gas from flowing into the suction area. Preferably, the sparge ring has a discharge means with a radius that is larger than the distance from the center of the disc to the outer tips of the blades.