Patent 7409959 was granted and assigned to Whirlpool Corporation on August, 2008 by the United States Patent and Trademark Office.
A dishwasher with a sound attenuator for attenuating the sound emanating from a motor cavity of the dishwasher. The sound attenuator comprising a sound absorber and a sound barrier. The sound absorber absorbing sound in the motor cavity with the sound barrier blocking the unabsorbed sound from escaping.