Disclosed is a washing machine having a device for eliminating hydrophobic substances contained in washing water, such as oil or hydrophobic groups of detergent. The device comprises a part for generating bubbles by spraying washing water, a part for separating the bubbles containing hydrophobic substances...http://www.google.com/patents/US6148649?utm_source=gb-gplus-sharePatent US6148649 - Washing machine with a device for eliminating hydrophobic substances contained in washing water
