Patent ID: 7319211

Claim:
A cooking utensil with a bottom wall adapted for induction heating of the type comprising: a container made from a first material, that has integrated on the outer face of its bottom wall a heat distributing or diffusing plate made from a second, different, heat conducting material, the outer surface of the bottom wall of the container having a series of spaced projections and said heat distributing plate comprises a disc made from a ferromagnetic material provided with a number of perforations equivalent to the number of projections or lugs and appropriately distributed to allow the engagement of said disc, backed onto said bottom wall, by inserting the lugs through the perforations, leaving the disc attached to the bottom wall by riveting said projections; and an annular partition which surrounds said outer surface of its bottom wall plane defining an open, flattened housing suitable for receiving said fitted disc, the height of the partition being slightly lower than that of said lugs and leaving the disc, once it is attached and the lugs are inserted into the holes and riveted, coplanar to the edge of said partition.