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US 2014/0230856 A1Published application
Obstacle sensing spray arm for a dishwashing machine
AssigneeWhirlpool Corporation
InventorSATHISH A. SUNDARAM
Life of this patent
Estimating the term…
Abstract
A dishwasher having a tub at least partially defining a treating chamber and in which is provided a rotating sprayer for emitting liquid into the treating chamber. The rotation of the spray arm may be controlled such that rotation of the spray arm is responsive to a determination that the spray arm has contacted an obstacle within the treating chamber.
Claims7
1-13. (canceled)
A method of controlling the rotation of a spray arm for a dishwasher having a washing chamber in which the spray arm is located, the method comprising:
- a) rotating the spray arm along a path of rotation;
- b) determining when the spray arm contacts an obstacle as the spray arm is rotated along the path of rotation;
- c) reversing the direction of the spray arm along the path of rotation upon a determining of the spray arm contacting an obstacle;
- and
- d) repeating b) and c) to oscillate the spray arm back and forth to spray fluid throughout the tub despite the presence of an obstacle in the path of rotation.
2 more elements
Dependencies are inferred from the claim text.