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US 12,765,714 B2Granted
Crisp plate for microwave ovens
AssigneeWhirlpool Corporation
InventorMuhammad Khizar
Life of this patent
Estimating the term…
Abstract
A plate for a microwave oven includes a substrate layer for supporting food items to be heated in the microwave oven, with the substrate layer having a first surface. The plate also includes a coating layer on the first surface. The coating layer includes at least one of a ferritic material and a boron nitride compound. The coating layer is configured to be heated by electromagnetic radiation irradiated by the microwave oven.
Claims16
A plate for a microwave oven, comprising:
- a substrate layer for supporting food items to be heated in the microwave oven, the substrate layer having a first surface;
- and
- a coating layer on the first surface, the coating layer including a first layer including a boron nitride compound, and a second layer contacting the first surface and including a ferritic material of at least one of a manganese-zinc ferritic compound, a nickel-manganese ferritic compound, and a nickel-copper-zinc ferritic compound, the second layer being embedded between the first surface and the first layer,
- wherein the coating layer is configured to be heated by electromagnetic radiation irradiated by the microwave oven.
1 more element
A plate for a microwave oven, comprising:
- a substrate layer for supporting food items to be heated in the microwave oven, and
- a plurality of coating layers at least partially juxtaposed and in contact with the substrate layer, a first coating layer of the plurality of coating layers including a boron nitride compound, and a second coating layer of the plurality of coating layers including at least one of a ferritic material of at least one of a manganese-zinc ferritic compound, a nickel-manganese ferritic compound, and a nickel-copper-zinc ferritic compound, the second coating layer with the ferritic material positioned between the substrate layer and the first coating layer with a substantially planar contact surface therebetween;
- and
- an auxiliary layer of the plurality of coating layers in substantial contact with the substrate layer and positioned between the substrate layer and the second coating layer with the ferritic material, the auxiliary layer also comprising the boron nitride compound,
- wherein the second coating layer with the ferritic material is heatable by an electromagnetic radiation irradiated by the microwave oven.
2 more elements
An assembly comprising:
- a microwave oven comprising a microwave source, a cavity, and a wave guide, the microwave source being configured for generating radiation, the cavity being configured for accommodating food items to be heated or cooked or thawed, and the wave guide transferring the electromagnetic radiation from the microwave source to the cavity;
- and
- a plate configured to be placed in the cavity of the microwave oven, the plate including a substrate layer having a top surface for supporting food items to be heated in the microwave oven, and a lower surface opposite to the top surface, and at least one coating layer at least partially juxtaposed and in contact with the substrate layer on the lower surface, the at least one coating layer includes at least a first layer including a boron nitride compound and a second layer including a ferritic material of at least one of a manganese-zinc ferritic compound, a nickel-manganese ferritic compound, and a nickel-copper-zinc ferritic compound, the second layer being positioned between the substrate layer and the first layer,
- wherein the at least one coating layer is heatable by the electromagnetic radiation irradiated by the microwave oven.
1 more element
Dependencies are inferred from the claim text.