Multidirectional Fuse Susceptor
AssigneeGraphic Packaging International, Inc.
InventorsNeilson ZENG, Laurence M.C. Lai, Scott W. Middleton
Life of this patent
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Abstract
A microwave energy interactive structure includes microwave energy interactive material supported on a microwave energy transparent substrate, and a plurality of spaced apart microwave energy transparent segments circumscribed by the microwave energy interactive material. The plurality of spaced apart microwave energy transparent segments define a pattern of loops that may be dimensioned to induce resonance of microwave energy during microwave heating of a food item on the structure. The structure may also include a plurality of microwave energy transparent elements that are operative as fuses to prevent overheating of the structure.
Claims31
A microwave energy interactive structure, comprising:
- microwave energy interactive material supported on a microwave energy transparent substrate, the microwave energy interactive material being operative for converting microwave energy into heat;
- and
- a plurality of microwave energy transparent segments circumscribed by the microwave energy interactive material, the plurality of spaced apart microwave energy transparent segments defining a pattern of interconnected hexagonal loops,
- wherein a plurality of the interconnected hexagonal loops defines a resonant loop having a total peripheral length approximately equal to the wavelength of microwave energy in an operating microwave oven.
A microwave energy interactive structure, comprising:
- microwave energy interactive material supported on a microwave energy transparent substrate, the microwave energy interactive material being operative for converting microwave energy into heat;
- and
- a plurality of microwave energy transparent areas within the microwave energy interactive material, the plurality of microwave energy transparent areas defining a pattern of interconnected loops and microwave energy transparent areas disposed within the interconnected loops,
- wherein a plurality of the interconnected loops define a resonant loop having a total peripheral length approximately equal to the wavelength of microwave energy in an operating microwave oven.
A microwave energy interactive structure, comprising:
- an electrically continuous layer of microwave energy interactive material supported on a microwave energy transparent substrate, the microwave energy interactive material being operative for converting microwave energy into heat;
- and
- a repeating pattern of microwave energy transparent areas within the layer of conductive material, the repeating pattern of microwave energy transparent areas including interconnected segmented hexagonal loops and cross-shaped elements, wherein the cross-shaped microwave elements are each disposed within a respective one of the interconnected segmented hexagonal loops,
- wherein
- the interconnected segmented hexagonal loops each have a first peripheral length, the peripheral length being approximately equal to one-half of an effective wavelength of microwaves in an operating microwave oven, and
- a plurality of the interconnected segmented hexagonal loops define a resonant loop having a total peripheral length, the total peripheral length being approximately equal to the effective wavelength of microwave energy in the operating microwave oven.
Dependencies are inferred from the claim text.