Patent ID: 7241347
Filing Date: 2007-07-10
Classification: A47L,B08B

Abstract:
1. A dishwasher comprising: a tub having bottom, opposing side, rear and top walls which collectively define a washing chamber adapted to receive and cleanse soiled kitchenware; at least one wash arm for spraying washing fluid onto kitchenware placed into the washing chamber; a pumping unit, including a motor, for directing washing fluid to the at least one wash arm; a filter chamber, adapted to receive a portion of the washing fluid, for entrapping soil from the washing fluid while permitting cleansed washing fluid to be directed back into the washing chamber; a drain exposed to the filter chamber; an overflow tube leading upwardly from the filter chamber such that washing fluid can rise within the overflow tube upon collection of soil in the filter chamber; a sensor for signaling a presence of washing fluid in the overflow tube; and a controller, linked to the sensor, for initiating a drain operation for the dishwasher.