Back to results
US 9,205,968 B2Granted
Multidirectional fuse susceptor
AssigneeGraphic Packaging International, Inc.
InventorsNeilson Zeng, Laurence M. C. Lai, Scott W. Middleton
Life of this patent
Estimating the term…
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.
Claims45
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 plurality of discrete microwave energy transparent segments spaced apart from one another within the layer of microwave energy interactive material, so that each segment is 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.
1 more element
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 plurality of microwave energy transparent areas spaced apart from one another within the layer of microwave energy interactive material, so that each microwave energy transparent area is surrounded by 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.
1 more element
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.
3 more elements
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 the plurality of spaced apart microwave energy transparent segments defining the pattern of interconnected hexagonal loops includes side segments and corner segments, the corner segments having a substantially tri-star shape, and
- 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.
2 more elements
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 the plurality of microwave energy transparent areas defining the pattern of interconnected loops include side areas and corner areas, the corner areas having a substantially tri-star shape, and
- 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.
2 more elements
Dependencies are inferred from the claim text.