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Induction heating using induction coils in series-parallel circuits

United States Patent

9,820,339
November 14, 2017
View the Complete Patent at the US Patent & Trademark Office
A part is inductively heated by multiple, self-regulating induction coil circuits having susceptors, coupled together in parallel and in series with an AC power supply. Each of the circuits includes a tuning capacitor that tunes the circuit to resonate at the frequency of AC power supply.
Matsen; Marc Rollo (Seattle, WA), Geren; William Preston (Shoreline, WA), Miller; Robert James (Fall City, WA), Negley; Mark Alan (Bellevue, WA), Dykstra; William Chet (Rockford, MI)
THE BOEING COMPANY (Chicago, IL)
13/ 248,134
20130082047
September 29, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under contract number DE-FG36-08GO18135 awarded by the United States Department of Energy. The government has certain rights in this invention.