Process for the continuous machine-washing of institutional crockery

US5356483A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Guenther Saalmann · Gevelsberg, DE
• Josef Selbertinger · Deggendorf, DE
• Thomas Schuster · Achern, DE
• Udo Schaab · Korschenbroich, DE
• Friedel Rings · Monheim, DE

Key dates

• Filing date: Jul 23, 1992
• Grant date: Oct 18, 1994
• Expiry date: Jul 23, 2012

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47L15/24
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

A method for washing institutional crockery in a dishwashing machine having at least three washing zones with at least three wash tanks in which the crockery is contacted with wash liquor having an increased concentration of surfactant by introducing make-up surfactant into the penultimate wash tank and bypassing a portion of the fresh water feed from the last wash tank around the penultimate wash tank.