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US 4,315,138 AGranted
Electric rice cooker
AssigneeTokyo Shibaura Denki Kabushiki Kaisha
InventorYoshiyuki Miwa
Life of this patent
Estimating the term…
Abstract
An electric rice cooker comprising a heater for heating a kettle and contents thereof, an electric timer which controls the energization and deenergization of the heater in response to the temperature of the kettle and a heat isolator for securing the timer and for preventing heat from being transferred from the heater to the timer.
Claims10
An electric rice cooker comprising:
- a cooking kettle for containing water and rice to be cooked;
- a removable lid covering the top of said kettle;
- electrical heater means mounted adjacent the outside surface of said kettle for heating said kettle and the contents thereof;
- thermally insulating frame means for supporting and enclosing said kettle and heater means;
- a face cover for covering at least a front portion of said frame means, said frame means and face cover forming a case;
- circuit means for connecting and disconnecting said heater means from a source of electrical energy to carry out a plurality of cooking steps in a predetermined period including a thermoswitch for detecting the temperature of said kettle and having a first position connecting said source to said heater for heating said kettle and contents and a second position disconnecting said heater means in response to detection of a predetermined temperature;
- electric timer means having controlled switches for controlling connection of said source to said heater means;
- and
- heat isolating means mounted on said case and disposed between said timer means and heater means for preventing heat from said heater means from being transferred to said timer means.
6 more elements
Dependencies are inferred from the claim text.