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US 2007/0163626 A1Published application
Liquid-conducting electrical household appliance
AssigneeBSH Bosch und Siemens Hausgerate GmbH
InventorHans-Wilhelm Klein
Life of this patent
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Abstract
An electric household appliance has a chamber that is at least partially filled with liquid during operation of the appliance. A motor drives a pump for drawing liquid from the chamber. A monitoring device detects the rotational speed and the power of the motor, compares detected values for the rotational speed and power to a predefined characteristic, and signals an exceptional state if the comparison indicates that the detected values deviate significantly from the characteristic.
Claims13
1-12. (canceled)
An electrical household appliance, comprising:
- a chamber to be at least partially filled with liquid during operation of the appliance;
- a pump driven by a motor and connected for drawing out liquid from said chamber;
- a monitoring device configured to detect a rotational speed and a power of said motor, to compare detected values of the rotational speed and the power with a predefined characteristic, and to signal an exceptional state when a comparison result indicates that the detected values deviate significantly from the predefined characteristic.
Dependencies are inferred from the claim text.