Patent ID: 6287327
Filing Date: 2001-09-11
Classification: A47G,A61F

Abstract:
An inflatable cover for convectively warming a person, comprising:a base sheet having two ends and two edges defining a periphery of the cover;the base sheet including a first layer of a first base sheet material and a second layer of a second base sheet material laminated to the first layer;a plurality of apertures opening through the base sheet;the plurality of apertures having a density pattern in which the density of the apertures in the base sheet increases in a direction toward the periphery of the cover;an overlaying material sheet attached to the second layer of the base sheet at a plurality of locations within the periphery of the cover;the overlaying material sheet sealed to the second layer near the periphery of the cover to form inflatable space between the overlaying material sheet and the base sheet; andan opening for admitting warmed air to the inflatable space.