Patent ID: 7198054

Claim:
A dishwasher comprising: a tub defining a washing chamber, said tub including at least top and opposing side walls; a partition wall extending downward from the top wall at a position between the opposing side walls and at least partially dividing the washing chamber into first and second wash zones; a controller for selectively performing a washing operation in either or both of the first and second wash zones; a door assembly, spanning each of the first and second wash zones, mounted for movement relative to the tub in order to selectively seal the washing chamber, said door assembly including an inner panel formed with first and second outer guide tracks and an intermediate guide track; and a dish support rack system provided within the washing chamber, said dish support rack system including: at least one upper dish rack system supported for movement into and out of the tub, said at least one upper dish rack system including first and second upper dish racks movably supported between the partition wall and a respective one of the opposing side walls, said first upper dish rack having a first width and said second upper dish rack having a second width, with the first width being at least double the second width; and at least one lower dish rack system supported for movement into and out of the tub, said at least one lower dish rack system including first and second lower dish racks movably supported between recessed positions, wherein the first and second lower dish racks are arranged within the washing chamber, and extended positions, wherein the first and second lower dish racks are supported upon the intermediate guide track and a respective one of the first and second outer guide tracks.