Patent Number: 7,765,628

Title: Steam washing machine operation method having a dual speed spin pre-wash

Abstract: A method for operating a washing machine having a tub with a drum rotatably mounted in the tub and configured to hold a fabric load comprises a pre-wash step; a heating step comprising introducing steam into at least one of the tub and the drum; and a washing step. The pre-wash step comprises recirculating liquid between the tub and the drum; rotating the drum at a first spin speed to distribute the clothing within the drum; and rotating the drum at a second spin speed greater than the first spin speed to draw the liquid through the fabric load.

Inventors: Wong; Nyik Siong (Saint Joseph, MI), Vaidhyanathan; Raveendran (Saint Joseph, MI), Hardaway; Anthony H. (Stevensville, MI), Luckman; Joel A. (Benton Harbor, MI)

Assignee: Whirlpool Corporation

International Classification: D06F 33/00 (20060101)

Expiration Date: 8/03/12018