Electric heating – Heating devices – With current connection and/or disconnection means
Reexamination Certificate
2006-01-17
2006-01-17
Paschall, Mark (Department: 3742)
Electric heating
Heating devices
With current connection and/or disconnection means
C219S508000, C219S506000, C219S483000, C392S373000, C392S383000
Reexamination Certificate
active
06987250
ABSTRACT:
An electronic control circuit for use with a heater, a fan, a humidifier, a cooking apparatus, or any device utilizing a power mode switch and a condition sensor, and time-automated switching of modes of operation. The circuit includes a single control switch to manually set power output, to set a value for automatically comparing and responding to a sensed condition, and to set a time-automated sequence of operational modes. The circuit includes a microprocessor, preferably an application-specific integrated circuit, to provide circuit logic. The single control switch, preferably a push-button switch, selects a mode of operation. The circuit includes a thermistor or humidity sensor. The unit responds to the sensed condition, in accordance with the temperature/humidity value set by the control switch. The unit bypasses sensor operation in manual mode. In timed mode, a manual or automatic mode operates for selected time, followed by an automatic mode or powering off.
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Levy William
Sherwood Robert A.
Tracy James J.
Hoffmann & Baron , LLP
Marino Francis E.
Paschall Mark
The Holmes Group, Inc.
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