Patent ID: 6075463
Filing Date: 2000-06-13
Classification: G01K,H05B

Abstract:
Apparatus for wirelessly transmitting the temperature and an identifying characteristic of a cooking pot to a stove comprising:a non-metallic plate located in a cooking zone in the stove;a cooking pot in communication with the cooking zone;a transmitting-receiving arrangement located under the cooking zone, the arrangement including an antenna arrangement for producing and transmitting an electromagnetic pulse directed at the cooking pot;a surface wave sensor attached to the cooking pot including, a second antenna, a piezoelectric crystal, and reflectors, wherein the piezoelectric crystal is exposed to the temperature of the cooking pot and wherein the reflectors identify the characteristic of the pot, the sensor reflects and modifies the pulses via the second antenna, and the transmitting-receiving arrangement evaluates the reflected pulses to determine the temperature and characteristic of the pot.