Electric heating – Metal heating – Of cylinders
Patent
1990-03-22
1991-04-16
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
219 1055F, 426107, 426113, 426234, 426243, 99DIG14, H05B 680
Patent
active
050080245
ABSTRACT:
A package for popping popcorn in a microwave oven includes an open-topped container in the form of a tub formed from self-supporting microwave transparent sheet material such as stiff paper or paperboard. The tube includes an upstanding side wall terminating at the top in a free edge which defines an upper wide mouth. The side wall has a lower edge which rests on the floor of the microwave oven during cooking. The tube also includes a flat bottom wall which is connected to the side wall at an elevation spaced upwardly from its bottom edge to define an air compartment within the package between the botom wall of the package and the oven floor. A layer of microwave interactive susceptor material is connected to the bottom wall and is distributed across the bottom wall so that substantially the entire susceptor has a constant gap from the bottom wall of the oven. The lower edge of the side wall of the tub is uninterrupted to make possible a sealing engagement with the floor of the microwave oven so that the air in the compartment becomes heated during cooking. A layer of unpopped popcorn rests on the bottom wall in heat conductive relationship with the susceptor. A flexible cover formed from microwave transparent sheet material is sealed to the edge of the mouth of the tub. The cover expands upwardly as the kernels of popcorn pop to accommodate their expansion.
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Jiffy Pop Microwave Popping Package American Home Products Inc..COPYRGT. 1986.
Golden Valley Microwave Foods Inc.
Harmon James V.
Leung Philip H.
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