F - Mech Eng,Light,Heat,Weapons – 24 – C
Patent
F - Mech Eng,Light,Heat,Weapons
24
C
309/69, 327/2.51
F24C 1/00 (2006.01) G05B 15/02 (2006.01) H05B 6/68 (2006.01)
Patent
CA 1220837
ABSTRACT TITLE: Heating appliance This invention relates to safety means for such heating appliances having a digital control section (3) as electric ovens, microwave ovens, and composite ovens which comprise the two preceding types, wherein the completion of setting of a timer (5a, 5b) or the like is judged by the passage of a given time, and the com- pletion of preparation for preheating is reported, while the sequence is advanced to make the start of heating possible. Further, the placement of an object to be heated (15) in a heating chamber (11) is judged by the opening and closing movement of a door (2), and a stand- by report is made to make the start of heating possible. Further, in a heating appliance which requires preheating, the preheating completion time is estimated and reported to facilitate the preheating operation.
405715
Fetherstonhaugh & Co.
Matsushita Electric Industrial Co. Ltd.
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