Foods and beverages: apparatus – Cooking – Automatic control
Patent
1996-08-05
1997-05-13
Simone, Timothy F.
Foods and beverages: apparatus
Cooking
Automatic control
99448, 99451, 99468, 99483, 99DIG14, 165 64, 165919, 219386, 219506, 219521, A47J 3902, A47B 3102, H05B 612, H05B 602
Patent
active
056282419
ABSTRACT:
A device for induction heating of meal trays includes an arrangement for supporting a series of trays one above the other. The foods to be heated are placed on a part of the tray that may include a layer of material that can be heated by magnetic induction and under an insulative dish-cover covered on the inside with a layer of material that can be heated by magnetic induction. Induction shelves are inserted between the trays and comprise groups of induction coils. The groups of induction coils are energized separately with high-frequency electrical energy by a multiplexed electrical generator. A detector detects the presence or the absence of the dish-covers. A control unit disables the energization of groups of induction coils near an area in which there is no dish-cover. The device adapts automatically to the presence or the absence of trays and/or dish-covers, optimizing efficiency and minimizing the generation of electromagnetic interference.
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Chavanaz Jean-Pierre
Losserand Laurent
Simone Timothy F.
Societe Cooperative de Production Bourgeois
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