Automatic washing machine and method

US11266289B2 · kind B2 · utility

Assignee

• Reckitt Benckiser (Brands) Limited · GB

Inventors

• Caroline Rigobert · Heidelberg, DE
• Boris Seitz · Heidelberg, DE
• Karl-Heinz Mohrhard · Heidelberg, DE
• Frank Dierkes · Heidelberg, DE
• Karlheinz Ulrich Gerhard Hahn · Otterstadt, DE
• Jorg Pflug · Ludwigshafen, DE
• Judith Preuschen · Mainz, DE
• Pavlinka Roy · Ludwigshafen, DE
• Marco Haag · Roth, DE
• Dietmar Van Loyen · Heidelberg, DE
• Stuart Campbell · Wilnis, NL
• Helmut Lunz · Heidelberg, DE

Key dates

• Filing date: Aug 5, 2015
• Grant date: Mar 8, 2022
• Expiry date: Nov 30, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47L2601/20
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

The invention relates to a method of automatic dishwashing of dishware using wash water, in which, in a first step, a first composition, which comprises an oxygen bleach but substantially no enzyme, is supplied to the wash water, and the dishware is washed in a washing zone with the oxygen bleach-containing wash water; and, in a second step which occurs after the first step, a second composition, which comprises an enzyme but substantially no bleach, is supplied to the wash water, and the dishware is washed in said washing zone with the enzyme-containing wash water. The invention also relates to an automatic dishwasher and a cartridge suitable for use in this method.