Radiant electric heater arrangement and method of operating the

Details Radiant electric heater arrangement and method of operating the Radiant electric heater arrangement and method of operating the

1996-11-06

1999-04-06

Walberg, Teresa J.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219464, 219465, 219446, H05B 368

Patent

active

058922067

ABSTRACT:
A radiant electric heater arrangement for a glass-ceramic top cooking appliance includes a heater in the form of a dish-like support supporting a first heating element and a second heating element. The first heating element has a predetermined minimum operating life expectancy at a predetermined optimum operating temperature. During user-selectable periods of boost heating the first heating element is connected independently to a voltage supply and operates at a first temperature higher than the predetermined optimum operating temperature. In contrast, during user-selectable periods of normal heating, the second heating element is connected to the voltage supply in series with the first heating element, the first heating element operating at a second temperature lower than the predetermined optimum operating temperature.

REFERENCES:
patent: 3912905 (1975-10-01), Giler
patent: 4810857 (1989-03-01), Goessler
patent: 5043559 (1991-08-01), Scott
patent: 5171973 (1992-12-01), Higgins
European Search Report.

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