Electric heating – Metal heating – Of cylinders
Patent
1980-11-19
1982-09-28
Grimley, Arthur T.
Electric heating
Metal heating
Of cylinders
126200, 219 1055D, 219 1055F, H05B 670
Patent
active
043519989
ABSTRACT:
A microwave oven has a cooking chamber; a microwave window in one of the chamber walls; a glass-ceramic plate covering the window; a securing frame affixed to the chamber wall and immobilizing the plate by engaging peripheral portions thereof; a microwave connecting housing adjoining the window externally of the cooking chamber; a microwave generating and guiding device bounding at least in part the space defined by the connecting housing for directing microwave energy into the cooking chamber through the connecting housing and the window; and an electric resistance heater in the cooking chamber. A high-temperature resistant seal is interposed between the securing frame and the plate; the seal is bonded to the chamber wall and the plate. The space defined by the connecting housing is maintained at a pressure which is greater than that prevailing in the cooking chamber.
REFERENCES:
patent: 3276138 (1966-10-01), Fritz
patent: 3364331 (1968-01-01), Johnson
patent: 3440385 (1969-04-01), Smith
patent: 4096369 (1978-06-01), Tanaka et al.
patent: 4105886 (1978-08-01), Baron et al.
Fleischmann Herbert
Keppel Heinrich
Klapper Peter
Grimley Arthur T.
Licentia Patent-Verwaltungs-GmbH
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