Patent ID: 7228894

Claim:
A device for uniformly distributing waste heat from a heat source to an enclosure, comprising: a first layer including a first thermal conductivity along a first plane substantially parallel to a surface of the enclosure, the first layer is in thermal communication with the heat source and the enclosure; and a second layer including a second thermal conductivity along a second plane substantially normal to the surface, the second layer is in contact with the enclosure and the first layer with a portion of the first layer positioned between the heat source and the second layer, and the second thermal conductivity is substantially lower than the first thermal conductivity so that waste heat thermally transfer through the second layer to the enclosure is substantially inhibited and a majority of the waste heat is thermally transferred through the first layer along the first plane and is uniformly distributed on an exterior surface of the enclosure; and a third layer including a third thermal conductivity along the second plane and the third thermal conductivity is less than or equal to the second thermal conductivity, the third layer is in contact with the first layer and the second layer and the third layer is positioned between the heat source and the enclosure, and wherein the third layer is operative to further inhibit waste heat transfer through the second layer to the enclosure.