Patent ID: 6365883
Filing Date: 2002-04-02
Classification: H05B

Abstract:
An induction heating coil for inductively heating juxtaposed portions of at least two metal sheets to cure a heat curable bonding material disposed between the at least two metal sheets to bond the two metal sheets together, the induction heating coil comprising:a first element forming a first inductive heating surface adapted to be disposed adjacent to one of the at least two metal sheets and the bonding material disposed therebetween; a second element having a shape complementary to the shape of the first element and spaced from the first element, the second element forming a second inductive heating surface adapted to be disposed adjacent to another one of the at least two metal sheets and the bonding material disposed therebetween and co-extensive with the first element; conductive elements interconnected between co-extensive ends of the first and second elements and connecting the first and second elements into a single turn coil, the conductive elements, the first element and the second element defining an opening between the first and second elements and along an axis extending through the ends and between the first and second elements adapted for receiving edge portions of the at least two metal sheets in magnetic coupling relationship with the first and second elements; and means for supplying a high frequency electrical current to the first and second elements and the conductive elements.