Dishwater control
AssigneeWhirlpool Corporation
InventorRonald E. Hahn
Life of this patent
Estimating the term…
Abstract
A dishwasher utilizing treating liquid for washing dishes in a treating cycle and air for drying the washed dishes in a drying cycle. An electric heater is provided for heating the dish-treating liquid and the drying air. A control is provided for energizing the heater to heat the treating liquid as an incident of the dishwasher operating in the treating cycle and selectively causing energization of the heater as an incident of the dishwasher operating in the drying cycle. The control further includes structure for preventing energizing of the heater notwithstanding the dishwasher operating in the drying cycle.
Claims6
In a dishwasher having operating means utilizing treating liquid for washing dishes in a treating cycle and air for drying dishes in a drying cycle, and electric heater means arranged to heat the dish-treating liquid and to heat the dish drying air, an improved control means for energizing said heater means to heat the treating liquid as an incident of the dishwasher operating in said treating cycle, and selectively (a) causing energizing of said heater means as an incident of the dishwasher operating in said drying cycle, or (b) preventing energizing of said heater means notwithstanding the dishwasher operating in said drying cycle, said control means comprising:
- a first switch for connecting said heater means to a power supply as an incident of the dishwasher operating in said treating cycle;
- a second switch in parallel with said first switch for connecting said heater means to the power supply as an incident of the dishwasher operating in said drying cycle;
- and
- a manually operable control for selectively preventing connecting of the heater means to said power supply by only said second switch.
Dependencies are inferred from the claim text.