Electric heating – Metal heating – Of cylinders
Patent
1988-02-29
1990-11-20
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
219 1055F, 219 1055M, 426107, 426234, 426243, 99DIG14, H05B 680
Patent
active
049720597
ABSTRACT:
A method and apparatus is disclosed for a system for heating food products in a variety of microwave ovens. The invention allows the temperature profile of the food product to be set at a predetermined level. A grid is used in combination with a conductive ring. There is preferably a spacing between the grid and the surface of the food product between about 0.25 inch and about 2.4 inches, a margin between openings in the grid between about 0.6 inch and about 1.8 inches, and the openings in the grid are of a size between about 0.75 inch and about 1.75 inches. A single iris embodiment is disclosed. The single iris may be in contact with the surface of the food product or spaced therefrom. An embodiment is also disclosed wherein a grid is in contact with the food surface.
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Eger, Jr. John
Frigge Thomas R.
Kemske Jonathon D.
Larkey David H.
Lentz Ronald R.
Leung Philip H.
The Pillsbury Company
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