Patent Number: 6,170,166

Title: Removal of heat and water vapor from commercial dishwashing machines

Abstract: A water-driven jet or venturi extraction means is used to remove, capture and cool the hot, highly humid air created within commercial dishwashers during a wash rinse or sanitization cycle. A cold water spray is used to create a pressure reduction zone which serves to draw in hot, highly humid air from the dishwasher. Water vapor cools and condenses on contact with the cold water spray within the venturi. The invention also serves to help vent the dishwasher. Cool, fresh air is drawn into the dishwasher while the hot air is drawn into the venturi.

Inventors: Johansen; Scott A. (Minneapolis, MN), Britain; Kent R. (Ellsworth, WI), Monsrud; Lee J. (Inver Grove, MN), Davidson; Glen W. (Roseville, MN)

Assignee: Ecolab Inc.

International Classification: A47L 15/48 (20060101); F26B 005/04 ()

Expiration Date: 01/09/2018