Patent ID: 8282741

Claim:
A dishwasher comprising: a tub defining a washing chamber for receiving articles to be washed; a door attached to the tub for selectively sealing the washing chamber; a fluid supply line; and a sequencing spray arm assembly comprising: a fluid distribution manifold in communication with the fluid supply line; spaced first and second elongated carrier arms in fluid communication with said fluid distribution manifold; first and second rotatable spray arms in fluid communication with the first and second carrier arms respectively; at least one nozzle located on each of the first and second spray arms configured to deliver a jet of washing fluid into the washing chamber; a sequencing diverter valve system including a sequencing valve, wherein the sequencing diverter valve system is configured to enable sequential delivery of washing fluid from the fluid distribution manifold to the first and second carrier arms; and a fluid responsive rotating drive arm in fluid communication with the fluid distribution manifold and including at least one nozzle for directing a spray of washing fluid into the wash chamber, said rotating drive arm being operatively connected to the sequencing valve to drive the sequencing valve between at least first and second, discrete positions for sequential delivery of washing fluid to the first and second spray arms respectively.