Integrated microwaveable heat storage device
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Accused Products
Abstract
An integrated microwaveable heat storage device that absorbs substantial amounts of microwave energy in a microwave oven in a relatively short period of time (one to 2 minutes) and releases this energy as heat (infrared radiation) over an extended period of time (typically 20 to 30 minutes The device includes three rigid elements, the upper element usually in the form of a container (10) such as a dish or cup cooperating with a base (14) to form a sealed enclosure or cavity. This enclosure is transparent to microwaves and encloses a mass of solid microwave absorbing material heater (12) in minimum contact with the walls of the cavity. This receptacle (enclosure) and the microwave absorbing material (the heater (12)) can have different cross sections, shapes, volumes and masses according to the specific intended use of the heat-storage device.
34 Citations
21 Claims
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1-11. -11. (canceled)
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12. A microwaveable heat storage device capable of being embodied alternatively as a plate, a bowl, a coffee mug, a tortilla warmer and other similar heat retentive tableware, comprising:
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a. an upper means container-shaped of a predetermined thermal mass member for providing a container to contain foodstuffs and liquids and absorbing and reflecting some infrared radiation separated by a predetermined non-uniform gap from a means for absorbing microwave energy and emitting infrared radiation and cooperating with a lower means for providing a base for enclosing said means for absorbing microwave energy;
b. an encapsulated rigid means for absorbing substantial amounts of microwave energy in an unusual short period of time and emitting infrared radiation;
c. a lower rigid, hollow shaped means element for providing a base for said device, reflecting some infrared radiation and cooperating with said means for providing a container to enclose said means for absorbing microwave energy in minimum physical contact and centering in a sealed enclosure said means for absorbing microwave energy, and sealingly connected to said means for providing a container whereby said heat storage device embodied as a piece of tableware such as a heat retentive plate can be preheated in a microwave oven in a very unusual short period of time and said means for absorbing microwave energy will radiate infrared energy in accordance to and limited by the Stefan-Boltzmann law in a confined space to maintain foodstuffs and liquids hot at the table for a very unusual extended period of time, even including a delay action which can be specified to avoid overheating the food. - View Dependent Claims (13, 14, 15)
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16. An integrated microwaveable heat storage device capable of being embodied alternatively as a plate, a coffee mug, a tortilla warmer and other similar heat retentive tableware, comprising:
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a. a rigid, of a predetermined mass, container-shaped, transparent to microwaves, heat resistant container, for providing a container to contain foodstuffs and liquids and absorbing some infrared radiation;
b. a made of microwave-absorbing material, of a rigid predetermined thermal mass and cross-sectional shape, unusually efficient heater, for absorbing microwave energy in an unusual short period of time and emitting infrared radiation;
c. a rigid, with a predetermined mass and cross-sectional hollow shape, transparent to microwaves, heat-resistant base, for providing a base for the entire device, reflecting some infrared radiation and cooperating with said container to enclose said heater in minimum physical contact with said heater, and sealingly connected to said container whereby said heat storage device embodied as a piece of dinnerware such as a heat retentive plate can be preheated in a microwave oven in a very unusual short period of time and said means for absorbing microwave energy will radiate infrared energy in accordance to and limited by the Stefan-Boltzmann law in a confined space to maintain foodstuffs and liquids hot at the table for a very unusual extended period of time, even including a delay action which can be specified to avoid overheating the food. - View Dependent Claims (17, 18, 19)
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20. An efficient and unusually adaptable in relation to energy absorption capacity, rigid, capable of adopting different shapes and emissivities microwave-absorbing material comprising:
a homogenous mixture of a predetermined percentage of relatively small ferromagnetic metal particles of a predetermined mesh size and hardened ceramic containing a predetermined portion of polar molecules selected from the group of;
iron oxides, metal oxides and other similar polar molecules filling the interstices between and binding said ferromagnetic metal particles- View Dependent Claims (21)
Specification