Induction heating coil for bonding metal sheets
First Claim
1. An induction heating coil for inductively heating juxtaposed portions of two metal sheets to cure a heat curable bonding material disposed between and adjacent to a perimeter edge of the two metal sheets to bond the two metal sheets together, the induction heating coil comprising:
- a first element disposed in a first plane and forming a first inductive heating surface adapted to be disposed adjacent one of the two metal sheets and the bonding material disposed therebetween;
a second element disposed in a second plane at a predetermined, non-parallel angle with respect to the first plane of the first element, the second element forming a second inductive heating surface adapted to be disposed adjacent the perimeter edge of the two metal sheets and the bonding material disposed therebetween; and
means for supplying a high frequency electric current to the first and second elements.
2 Assignments
0 Petitions
Accused Products
Abstract
An induction coil for joining structural members by heating a bonding material disposed between the structural members. The induction coil includes first and second elements disposed in a non-parallel arrangement adjacent one surface and along one side edge of two juxtaposed structural members. In one embodiment, the first and second elements are joined together at adjacent ends. A base and a riser are connected to intermediate spaced ends of the first element for attaching the induction coil to a source of high frequency electrical current. The first and second elements, the base and the riser are formed of hollow, tubular members to form a coolant flow path therethrough.
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Citations
17 Claims
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1. An induction heating coil for inductively heating juxtaposed portions of two metal sheets to cure a heat curable bonding material disposed between and adjacent to a perimeter edge of the two metal sheets to bond the two metal sheets together, the induction heating coil comprising:
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a first element disposed in a first plane and forming a first inductive heating surface adapted to be disposed adjacent one of the two metal sheets and the bonding material disposed therebetween; a second element disposed in a second plane at a predetermined, non-parallel angle with respect to the first plane of the first element, the second element forming a second inductive heating surface adapted to be disposed adjacent the perimeter edge of the two metal sheets and the bonding material disposed therebetween; and means for supplying a high frequency electric current to the first and second elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An induction heating coil for inductively heating first and second juxtaposed metal sheets, the first metal sheet having a perimeter edge and a surface opposing a juxtaposed surface of the second metal sheet, the second metal sheet having an outer edge portion hemmed over the perimeter edge of the first sheet and forming an outer edge in the second sheet adjacent the perimeter edge of the first sheet and an end portion extending from the outer edge over the first sheet, to cure a heat curable bonding material disposed between the opposing surfaces of the first and second metal sheets, the induction heating coil comprising:
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a first element disposed in a first plane and forming a first inductive heating surface adapted to be disposed adjacent to an outer surface of the second metal sheet and the bonding material disposed between the first and second metal sheets; a second element disposed in a second plane at a predetermined, non-parallel angle with respect to the first plane of the first element, the second element forming a second inductive heating surface adapted to be disposed adjacent to the outer edge of the second metal sheet; and means for supplying a high frequency electric current to the first and second elements whereby the first element induces heat in the second metal sheet, which heat is transferred to the bonding material adjacent the second metal sheet, and the second element induces heat in the outer edge and the end portion of the second metal sheet, which heat is transferred through the outer edge and the end portion of the second metal sheet through the first metal sheet to the bonding material adjacent the first metal sheet.
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Specification