Patent ID: 9119521
Filing Date: 2015-09-01
Classification: A47L

Abstract:
1. A dishwasher, comprising: a tub defining a washing chamber, one or more dish racks positioned in the washing chamber, a rotating spray arm positioned in the washing chamber to spray wash fluid on the one or more dish racks, the rotating spray arm comprising: (i) a hub defining a central fluid chamber having a first outlet and a second outlet, (ii) a first wing extending outwardly from the hub, the first wing having a first fluid chamber that is fluidly coupled to the central fluid chamber via the first outlet, and (iii) a second wing extending outwardly from the hub, the second wing having a second fluid chamber that is fluidly coupled to the central fluid chamber via the second outlet, and an input shaft having a first end positioned in the hub of the spray arm and a second end extending outwardly from the hub of the spray arm, wherein (i) the input shaft is rotatable relative to the spray arm, (ii) the first end of the input shaft comprises a flange, (iii) rotation of the input shaft in a clockwise direction causes the flange to (a) drive the spray arm in the clockwise direction by conveyance of rotational force from the input shaft to the spray arm, and (b) prevent wash fluid from advancing through the second outlet of the central fluid chamber of the spray arm, and (iv) rotation of the input shaft in a counterclockwise direction causes the flange to (a) drive the spray arm in the counterclockwise direction by conveyance of rotational force from the input shaft to the spray arm, and (b) prevent wash fluid from advancing through the first outlet of the central fluid chamber of the spray arm.