Foods and beverages: apparatus – Cooking – Automatic control
Patent
1991-01-29
1992-02-18
Simone, Timothy F.
Foods and beverages: apparatus
Cooking
Automatic control
99329R, 99332, 99342, 99385, 219464, 219492, 219501, A47J 3708, H05B 102
Patent
active
050883895
ABSTRACT:
A household toaster is operated at will asymmetrically, e.g. at one side, or at low power, or so as to keep a toast warm after a given toasting cycle. The toaster has a power control circuit which includes a power stage which controls heating resistors of the toaster. The power stage comprises two triacs, tripped at zero passage due to a provision of a zero passage detector. The higher or lower power supplied to the resistors in the various operating modes is always carried out by means of full cycles of the system, either continuously in the case of top output, or by means of cycle trains, controlled by a power control, a selector circuit and a heat holding timer. The toaster is provided with a start button and an ejector-and-stop button as well as a toaster control timer, indicators and actuators.
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