Rechargeable phase change material unit and food warming device
First Claim
Patent Images
1. A rechargeable phase change material unit comprising:
- a first shell portion and a second shell portion forming a shell, said first shell portion and said second shell portion defining a cavity;
at least one layer of a phase change material disposed in said cavity, said phase change material being chargeable with heat energy; and
a heater assembly positioned on one side of said layer of phase change material, said heater assembly being provided to charge said phase change material with heat energy and distribute heat energy throughout said layer of phase change material during the charging of said phase change material.
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Abstract
A rechargeable phase change material unit is provided. The unit comprises a first shell portion and a second shell portion forming a hollow shell defining a cavity. At least one layer of a phase change material is disposed in the cavity of the shell. The phase change material is capable of being charged with heat energy. A heater assembly is positioned on one side of the layer of phase change material. The heater assembly is provided to charge the phase change material with heat energy and distribute heat energy throughout the layer of phase change material during the charging of the phase change material.
200 Citations
46 Claims
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1. A rechargeable phase change material unit comprising:
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a first shell portion and a second shell portion forming a shell, said first shell portion and said second shell portion defining a cavity; at least one layer of a phase change material disposed in said cavity, said phase change material being chargeable with heat energy; and a heater assembly positioned on one side of said layer of phase change material, said heater assembly being provided to charge said phase change material with heat energy and distribute heat energy throughout said layer of phase change material during the charging of said phase change material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A food heating device comprising a container and a rechargeable phase change material unit removably positioned in said container, said rechargeable phase change material unit including a first shell portion and a second shell portion forming a shell having a cavity;
- at least one layer of a phase change material disposed in said cavity of said shell, said phase change material capable of being charged with heat energy; and
a heater assembly positioned on one side of said layer of phase change material, said heater assembly being provided to charge said phase change material with heat energy and distribute heat energy throughout said layer of phase change material during the charging of said phase change material. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
- at least one layer of a phase change material disposed in said cavity of said shell, said phase change material capable of being charged with heat energy; and
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33. A pizza heater for keeping a pizza warm during delivery comprising:
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a first shell portion and a second shell portion, said first shell portion and said second shell portion forming a shell having a cavity therein; a first layer of phase change material and a second layer of a phase change material positioned in said cavity, said phase change material capable of being charged with heat energy; and a heater assembly positioned between said first layer of phase change material and said second layer of phase change material; wherein, said heater assembly distributes heat throughout said first layer of phase change material and said second layer of phase change material to charge said phase change material with heat energy. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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Specification