Induction Heating Device With Electromagnetic Diverter
AssigneeInduction Tooling, Inc.
InventorsWilliam Stuehr, John Gadus
Life of this patent
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Abstract
An induction heating element comprises a primary conductive portion and a secondary conductive portion. The primary conductive portion is connected to a power source, and conducts electric current from the power source to generate a magnetic field that inductively heats a portion of the workpiece. The secondary conductive portion is electrically insulated from the primary portion, and receives an induced electric current from the primary portion to affect the magnetic field generated by the primary portion.
Claims15
An inductor assembly for treatment of a workpiece, which comprises:
- a primary conductive portion for connection to a power source, the primary portion conducting electric current from the power source to generate a magnetic field that inductively heats a portion of the workpiece;
- and
- a secondary conductive portion electrically insulated from the primary portion, the secondary portion receiving an induced electric current from the primary portion to affect the magnetic field generated by the primary portion.
An inductor assembly for induction heating of a interior surface of a workpiece having an annular bore, the assembly comprising:
- a body for rotation relative to the workpiece, the body having a generally cylindrical shape, the body comprising
- a primary induction coil formed of an electrically conductive material;
- and
- a secondary coil electrically insulated from the primary loop, the secondary coil positioned relative to the primary coil so as to receive an inducted current therein, said inducted current counter the field produced by said primary coil to create a countered field.
An inductor assembly for induction heating of a interior surface of an elongated workpiece at least a portion of which has cylindrical surfaces, the assembly comprising:
- a body for rotation relative to the workpiece, the body having a generally annular shape with a central opening for insertion of the workpiece, the body comprising
- a primary induction coil formed of an electrically conductive material;
- and
- a first secondary coil on one side of the primary induction coil and electrically insulated from the primary coil, the first secondary coil positioned relative to the primary coil so as to receive an inducted current therein, said inducted current countering the field produced by said primary coil to shape the field away from the first secondary coil.
Dependencies are inferred from the claim text.