Electric heating – Inductive heating – With power supply system
Reexamination Certificate
2009-07-08
2010-11-02
Fureman, Jared J (Department: 2836)
Electric heating
Inductive heating
With power supply system
C219S665000, C219S668000, C361S093100
Reexamination Certificate
active
07825357
ABSTRACT:
This invention provides a power supply which supplies an AC electric current to the coil of a heating unit employing the electromagnetic induced heating method via a connector connecting a plurality of wires, and a method for the power supply. The method includes the steps of supplying electric currents to the coil via 1st and 2nd wires from 1st and 2nd electric current supply units and detecting feedback electric currents via 3rd and 4th wires through the coil. Whether an electric current is abnormally supplied to the coil is monitored on the basis of these detected electric currents. It is controlled in accordance with the monitoring result to stop driving the 1st and 2nd electric current supply units and supply an electric current to the coil.
REFERENCES:
patent: 6930293 (2005-08-01), Matsuo et al.
patent: 7015439 (2006-03-01), Thomas et al.
patent: 7206527 (2007-04-01), Sasamoto et al.
patent: 7289745 (2007-10-01), Nara et al.
patent: 2000-223253 (2000-08-01), None
Canon Kabushiki Kaisha
Fureman Jared J
Patel Dharti H
Rossi Kimms & McDowell LLP
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