Nominal voltage identification system for electric resistance

Details Nominal voltage identification system for electric resistance Nominal voltage identification system for electric resistance

2005-01-11

2005-01-11

Paschall, Mark (Department: 3742)

Electric heating

Heating devices

With power supply and voltage or current regulation or...

C219S485000, C219S492000, C219S497000, C219S505000, C361S078000, C361S085000

Reexamination Certificate

active

06841761

ABSTRACT:
U.S. Ser. No. 2002009312A cooking appliance having an electric resistance heater is connected to a multiple phase external power source and includes a system for compensating for whether the cooktop is connected to 240V split phase system wherein the two phases are 180° out of phase with each other or a 208V three phase system which has two phases that are only 120° out of phase. In particular, the cooktop includes a system for distinguishing whether the multiple phases of the external power source are 180° out of phase such that the electric resistance heater is compensated against whether it is connected to a three phase external power supply.

REFERENCES:
patent: 5101575 (1992-04-01), Bashark
patent: 5640113 (1997-06-01), Hu
patent: 5883796 (1999-03-01), Cheng et al.
patent: 6271506 (2001-08-01), Glaser

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