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Steam cooker and steam generator

  • US 8,109,204 B2
  • Filed: 02/23/2005
  • Issued: 02/07/2012
  • Est. Priority Date: 02/27/2004
  • Status: Expired due to Fees
First Claim
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1. A steam generator, comprising:

  • a pot to which water is supplied;

    a heater placed in the pot;

    a water level sensor that detects a level of the water contained in the pot;

    a temperature sensor that detects a temperature inside the pot; and

    a controller that controls an amount of water in the pot based on an output from the water level sensor and an output from the temperature sensor so as to maintain the heater submerged in the water,wherein the water level sensor is a self-heating thermistor, andwherein the controller judges whether the heater is submerged in the water or not by obtaining a reference value based on the output from the temperature sensor and comparing the output from the water level sensor with the reference value.

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