Microcomputer controlled toaster
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United States of America Patent
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-
Jul 7, 1992
Grant Date -
N/A
app pub date -
Nov 7, 1986
filing date -
Nov 7, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A 'pop-up' toaster is controlled by a microcomputer to operate in a toast, bakery or pastry mode to toast a product to some preselected color. The microcomputer includes a memory for storing indications of the toast color selected for the present toaster cycle (TCOLOR), the toast color selected for the previous toasting cycle (TLAST), the mode selected for the present toasting cycle (MODE) and the previous toasting cycle (LMODE) as well as tables of toaster cycle times and tables of compensation values. The microcomputer counts the number of toaster cycles occurring within a predetermined time of the start of the present cycle (TCYCLE) and also develops an indication (TINT) representing the elapsed time between the end of the previous cycle and the beginning of the present cycle. A toast cycle time is selected from the tables depending upon TCYCLE, TINT and TCOLOR. The selected toast cycle time is then modified in various ways depending on MODE, LMODE, the relation of TCOLOR to TLAST, and the magnitude of TINT and TCOLOR. The modified value of toast cycle time is then used by the microcomputer to terminate power to the heating elements of the toaster after the toast cycle time has expired.
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