US Patent 11252789 Temperature controlling device for an appliance heating element

A burner element for a cooktop includes a heat source for providing heat to a cooking zone positioned above the heat source and an automatic thermostat switch in communication with the cooking zone and the heat source. The automatic thermostat switch senses an actual temperature of the cooking zone, and when the actual temperature reaches a predetermined maximum temperature the automatic thermostat switch moves to an open position defined by the automatic thermostat switch at least partially impeding the heat source. The open position of the automatic thermostat switch is further defined by a decrease in the actual temperature of the cooking zone from approximately the predetermined maximum temperature to a control temperature. When the actual temperature of the cooking zone reaches the control temperature the automatic thermostat switch defines a closed position, wherein the automatic thermostat switch is substantially free of impeding the heat source.