Induction heating or melting with multiple frequencies

Details Induction heating or melting with multiple frequencies Induction heating or melting with multiple frequencies

2006-08-08

2006-08-08

Leung, Philip H. (Department: 3742)

Electric heating

Inductive heating

With power supply system

C219S666000, C373S148000, C363S058000

Reexamination Certificate

active

07087870

ABSTRACT:
An apparatus and process are provided for multi-frequency induction heating of a workpiece. Switching devices are used to selectively add, remove or reconfigure capacitive elements in the circuit to change the circuit's resonant frequency, and consequently, the frequency of induction heating or melting power transfer from the power supply to the load.

REFERENCES:
patent: 3448367 (1969-06-01), Corey
patent: 4114010 (1978-09-01), Lewis
patent: 6542535 (2003-04-01), Fishman et al.

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