Effective time ratio browning in a microwave oven employing high

Details Effective time ratio browning in a microwave oven employing high Effective time ratio browning in a microwave oven employing high

1978-05-31

1980-12-30

Albritton, C. L.

Electric heating

Metal heating

Of cylinders

219 1055R, 219 1055M, 219486, 307 41, H05B 668, H05B 672

Patent

active

042425549

ABSTRACT:
A time ratio control system for a microwave oven including a food surface browning system of relatively high thermal mass and operated from a limited power source. It is recognized that, since thermal (infrared) radiation is proportional to the fourth power of the absolute temperature of the radiating body, effective browning operation requires that the browning unit be allowed to reach at least a minimum temperature. Each cooking operation has a plurality of energization intervals of said microwave energy generating system and a plurality of effective browning intervals during which the browner is energized. To ensure effective browning, each effective browning interval has at least a predetermined minimum duration selected to allow the browning system time to reach at least a minimum effective temperature.

REFERENCES:
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patent: 3128362 (1964-04-01), Clark et al.
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patent: 3457430 (1969-07-01), Samuelson
patent: 3523170 (1970-08-01), Boehm
patent: 3569656 (1971-03-01), White et al.
patent: 3717300 (1973-02-01), Evalds
patent: 3901308 (1975-08-01), Berger
patent: 3980943 (1976-09-01), Cailleux et al.
patent: 4020358 (1977-04-01), Wyland
patent: 4188520 (1980-02-01), Dills

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