Stoves and furnaces – Stoves – Cooking
Reexamination Certificate
2007-08-14
2007-08-14
Price, Carl D. (Department: 3749)
Stoves and furnaces
Stoves
Cooking
C431S262000, C431S078000, C431S012000, C126S0390BA, C251S129080, C251S129050
Reexamination Certificate
active
09884828
ABSTRACT:
An electronically activated gas cooktop control system, responsive to a touch-sensitive user interface, and capable of providing a predetermined range of cooking and simmer levels of BTU output, has two complementary heating modes of operation A first heating mode of operation is provided to produce a wide selection of simmer levels of BTU output, by electronically sequencing a solenoid-operated modulating gas valve “on” and “off”, at a predetermined level of flame. A second cooking mode of operation is provided by electronically modulating the level of flame, through use of a pulse-width-modulation (PWM) output signal to produce a wide selection of cooking levels of BTU output. An igniter system capable of insuring proper ignition of gas without generating harmful electromagnetic interference is also provided.
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Olson Allen L.
Repper Pierre P.
Shute Alan B.
Shute Christa B.
Shute Suzanne J.
CompuValve LLC
Leas James Marc
Price Carl D.
Touw Theodore R.
LandOfFree
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