US 5,442,159 AGranted

Method of induction bonding juxtaposed structural members

AssigneeRobotron Corporation

InventorThomas J. Shank

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Abstract

A method of bonding two structural members, such as two metal sheets, by heating a bonding material disposed between juxtaposed perimeter edges of the two sheets. An induction heater is disposed adjacent one sheet surface and adjacent the juxtaposed perimeter edges of the two sheets to induce heat to the bonding material from one surface of one sheet and from the perimeter edges of both sheets to cure the bonding material. The induction heater is formed of first and second elements disposed in a non-parallel arrangement adjacent one surface and along one perimeter edge of two juxtaposed structural members. 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 first element to a high frequency electrical current source.

Claims19

Dependent claims

A method of bonding a first metal sheet to a second metal sheet comprising the steps of:

disposing an uncured, heat curable bonding material on one surface of the first metal sheet in a predetermined location with respect to a perimeter edge of the first metal sheet;
disposing the second metal sheet in a juxtaposed position with respect to the first metal sheet in contact with the bonding material, with a perimeter edge of the second metal sheet juxtaposed with the perimeter edge of the first metal sheet;
disposing induction heater means adjacent one surface of one of the first and second metal sheets and adjacent the juxtaposed perimeter edges of the first and second metal sheets;
and
inducing heat from the induction heater means to the bonding material from one surface of one of the first and second metal sheets and from the juxtaposed perimeter edges of the first and second metal sheets to cure the bonding material between at least the first and second metal sheets and along the juxtaposed edges of the first and second metal sheets in proximity with the induction heater means.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/260,357Filed 15 Jun 1994 · division
Priority: 26 Apr 1993
Granted: 15 Aug 1995
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H05B 6/101
Induction heating apparatus, other than furnaces, for specific applications: for local heating of metal pieces
C09J 5/06
Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers: involving heating of the applied adhesive
H05B 6/365
Coil arrangements: using supplementary conductive or ferromagnetic pieces
C09J 2400/163
Metal: in the substrate