Patent ID: 7067773

Claim:
A food-warming device comprising: a partially open housing having an arcuate cross-sectional shape and an open side extending along a longitudinal length of the housing; a heating element extending along the longitudinal length of the housing; a support member disposed to maintain a position of the heating element at the open side of the housing; a first distinct piece of thermally insulative material that comprises microporous thermal insulation disposed within the housing to insulate a surface of the housing from heat generated by the heating element, the first distinct piece extending alone the longitudinal length of the housing and shaped to conform to the arcuate cross-sectional shape; a second distinct piece of thermally insulative material that comprises microporous thermal insulation extending alone the longitudinal length of the first piece, wherein at least a part of the second distinct piece is disposed within an area defined by the arcuate shape of the first piece; and a vapor seal to protect the first piece and the second piece of thermally insulative material from exposure to moisture.