Induction heating coil, device and method of use
AssigneeMelrose Corporation
InventorsAaron P. LeMieux, Harris E. Hanser, Robert E. Hosterman
Life of this patent
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Abstract
The invention provides an improved induction heating coil, an induction heating device including the induction heating coil and a method for heating a workpiece with the induction heating device. The induction heating coil for heating a workpiece includes an elongated solenoid-type induction heating coil and at least one pancake-type coil positioned within a portion of the elongated solenoid-type induction heating coil, where the solenoid-type coil and the pancake-type coil are in electrical connection with each other.
Claims27
An induction heating coil for heating a workpiece comprising:
- an elongated substantially cylindrical solenoid-type induction heating coil having opposite open ends;
- and
- at least one pancake-type coil positioned within a portion of said elongated substantially cylindrical induction heating coil, wherein said solenoid-type coil is in electrical connection with said pancake-type coil.
An induction heating device for heating a workpiece comprising:
- an induction coil comprising an elongated substantially cylindrical solenoid-type induction heating coil having opposite open ends;
- and at least one pancake-type coil positioned within a portion of said elongated substantially cylindrical induction heating coil, wherein said solenoid-type coil is in electrical connection with said pancake-type coil;
- and
- a high frequency power source in electrical communication with said solenoid-type coil and said pancake-type coil for supplying high frequency electric power to said coils.
A method of induction heating a workpiece comprising:
- providing an induction heating coil comprising an elongated substantially cylindrical solenoid-type induction heating coil having opposite open ends and at least one pancake-type coil positioned within a portion of said solenoid-type induction heating coil, wherein said solenoid-type is in electrical connection with said pancake-type coil;
- positioning a portion of the outer surface of said workpiece to be heated in proximity to the pancake-type induction coil;
- and
- supplying said coils with a source of high frequency power to induce a current in the workpiece for a time sufficient to heat said workpiece to a desired temperature.
Dependencies are inferred from the claim text.