Patents by Inventor Jean-Pierre Chavanaz

Jean-Pierre Chavanaz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5628241
    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.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: May 13, 1997
    Assignee: Societe Cooperative de Production Bourgeois
    Inventors: Jean-Pierre Chavanaz, Laurent Losserand