F - Mech Eng,Light,Heat,Weapons – 24 – C
Patent
F - Mech Eng,Light,Heat,Weapons
24
C
341/32, 126/69,
F24C 3/12 (2006.01) F24C 1/00 (2006.01) G05D 23/19 (2006.01)
Patent
CA 1197592
ABSTRACT This invention provides a cooking appliance using a gas fuel as a heat source and having an appliance body (1), comprising a temperature sensor (6) installed in a heating chamber, a control circuit (18) adapted to be actuated by the output from the temperature sensor (6) and to operate according to three working temperatures, namely, a preset temperature, an upper limit temperature and a lower limit temperature, the arrangement being such that when the temperature in the heating chamber being detected by the temperature sensor reaches the upper limit temperature, main burners (2, 3) are completely closed; when it reaches the preset temperature, the firing of the main burners (2, 3) is reduced by half; and when it reaches the lower limit temperature, the main burners (2, 3) are fully opened, thereby effecting fine temperature control, the firing rate being automatically adjusted according to variations in external conditions affecting the heating chamber temperature, thereby maintaining the preset temperature throughout the heating operation to provide satisfactory results of cooking.
421856
Hirai Masayoshi
Tanaka Junzo
Ueda Katsuro
Fetherstonhaugh & Co.
Matsushita Electric Industrial Co. Ltd.
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