US 7,475,696 B2
Dishwasher having valved third-level sprayer
Chad T. Vanderroest, Watervliet, Mich. (US); and Jay Landsiedel, Kewanee, Ill. (US)
Assigned to Whirlpool Corporation, Benton Harbor, Mich. (US)
Filed on Dec. 30, 2004, as Appl. No. 11/26,739.
Application 11/026739 is a continuation in part of application No. 10/463263, filed on Jun. 17, 2003.
Prior Publication US 2005/0133070 A1, Jun. 23, 2005
Int. Cl. B08B 3/02 (2006.01)
U.S. Cl. 134—94.1  [134/95.3; 134/99.1] 17 Claims
OG exemplary drawing
 
1. An automatic dishwasher comprising:
a wash tub defining a wash chamber for receiving utensils to be washed and having an open face through which access is provided to the wash chamber;
a door selectively moveable between open and closed positions for selectively closing the open face when the door is in the closed position; and
a wash liquid delivery system comprising first, second, and third wash liquid supplies that supply wash liquid to the wash chamber, a spray arm assembly for directing a spray of wash liquid from the third wash liquid supply into the wash chamber, and an auxiliary spray arm assembly;
wherein the flow of wash liquid to the spray arm assembly and the auxiliary spray arm assembly can be selectively controlled independent of the delivery of wash liquid to the first and second wash liquid supplies.