×

Induction heating appliance for a cooking utensil

  • US 3,989,916 A
  • Filed: 08/30/1974
  • Issued: 11/02/1976
  • Est. Priority Date: 11/15/1972
  • Status: Expired due to Term
First Claim
Patent Images

1. An induction heating appliance for inductively heating a cooking utensil comprising, in combination:

  • a cooking plate on which the cooking utensil is to be placed;

    induction heating means mounted below said cooking plate for generating an alternating magnetic field to heat the cooking utensil;

    an inverter means connected to said induction heating means to energizing same;

    a non-magnetic plate;

    a pantograph type device deposited on said non-magnetic plate;

    a coil supporting means for substantially horizontally mounting said induction means thereon, said coil supporting means being fixedly secured on said pantograph type device to be vertically moved thereby in parallel relationship relative to said cooking plate;

    control means for adjusting a vertical position of said coil supporting means, said control means including a flexible line, which is connected to at least one framework of said pantograph type device, said flexible line serving to adjust the vertical position of said coil supporting means in that it may be pulled to raise said pantograph type device and may be relaxed to lower said pantograph type device due to the weight of said induction heating means;

    a dummy coil connected in parallel to said induction heating coil, and switching means for normally connecting said induction heating means to said inverter means and for disconnecting the induction heating means from said inverter means and connecting said dummy coil to said inverter means for preventing heating of said cooking utensil when said induction heating means is moved to its lowermost position by said pantograph type device.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×