Electric heating – Metal heating – Of cylinders
Patent
1988-02-08
1989-05-16
Pellinen, A. D.
Electric heating
Metal heating
Of cylinders
219 1055M, 364189, H05B 906
Patent
active
048312266
ABSTRACT:
A commercial microwave oven having a plurality of operator actuable switches each of which is dedicated to activating the microwave oven for a corresponding programmed time period. These operator actuable switches are located on a switchboard, and a front faceplate has graphic keypads indicating where to push to activate the respective switches. Also located on the switchboard are operator actuable switches used to reprogram the time periods, but these reprogramming switches are hidden because they do not have corresponding keypads on the faceplate. Accordingly, access to the reprogramming feature is limited to those who have been appropriately instructed.
REFERENCES:
patent: 4011428 (1977-03-01), Fosnough
patent: 4345145 (1982-08-01), Norwood
patent: 4431393 (1984-02-01), Levie
Carlson Roger W.
Fritts Rex E.
Robeson John D.
Amana Refrigeration Inc.
Clark William R.
Fuller Leon K.
Pellinen A. D.
Sharkansky Richard M.
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