Induction heating coil device

Details Induction heating coil device Induction heating coil device

2006-06-13

2006-06-13

Van, Quang (Department: 3742)

Electric heating

Inductive heating

Specific inductor configuration

C219S633000, C428S409000

Reexamination Certificate

active

07060952

ABSTRACT:
An induction heating coil device includes a workpiece having one or more planar surfaces, and an induction coil having a number of coil turns arranged in inwardly converging shape and arranged to have planes of the coil turns offset from each other for generating high frequency wave. The planes of the coil turns are disposed parallel to the planar surfaces of the workpiece, for allowing the workpiece to be evenly or uniformly heated by the high frequency wave generated by the coil turns of the induction coil. The induction coil may include one or more insulating rings attached onto the coil turns, for preventing the coil turns from being electrically contacted with the planar surface of the workpiece.

REFERENCES:
patent: 2182820 (1939-12-01), Pisarev
patent: 2604419 (1952-07-01), Herbenar
patent: 4439492 (1984-03-01), Wada et al.
patent: 5139407 (1992-08-01), Kim et al.
patent: 5641422 (1997-06-01), Matsen et al.
patent: 6555801 (2003-04-01), LeMieux et al.
patent: 2004/0004071 (2004-01-01), Ogasawara et al.

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