Pressure monitoring arrangement for heating system of a convection cooking appliance
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United States of America Patent
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-
Aug 5, 2003
Grant Date -
Apr 11, 2002
app pub date -
Dec 7, 2001
filing date -
Sep 13, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A convection cooking appliance includes an oven cavity surrounded by an air channel assembly. The appliance includes heating units and a microwave generator arranged in the air channel assembly. A blower assembly is provided to generate a recirculating flow of air through the air channel assembly and the oven cavity. A controller, responsive to operator inputs, as well as signals from both temperature and pressure sensors located in the air channel assembly, regulates the activation/deactivation state of each of the components. One of the heating units in the air channel assembly is preferably constituted by an open coil heating element which is de-activated when the pressure is sensed to be below a specified threshold.
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