Patent ID: 6910235
Filing Date: 2005-06-28
Classification: A41D,A47G,B32B

Abstract:
1. A multi-layered composite construct having at least one inflatable and deflatable compartment therein, said construct comprising: at least two layers of a flexible, waterproof, air impermeable, optionally water-vapor-permeable material, the two layers forming at least one compartment therebetween, the two layers having at least one additional layer of a porous insulating material disposed between said two layers, and within said compartment, wherein said at least two layers and said additional layer are adhesively bonded together about the periphery of said compartment and, optionally, at discrete locations within the periphery of maid compartment, and wherein said adhesive penetrates said porous insulating material and bonds said layers together to form a waterproof, airtight seal for said compartment extending around the periphery of said compartment, said porous additional insulating material layer being otherwise unattached to at least one of said at least two layers, said compartment having at least one sealable opening therein through which air may be injected into or removed from said compartment, as desired, thereby inflating or deflating said compartment to a desired volume, and wherein said at least two layers are composite layers of (a) a flexible, first layer of hydrophobic material having a moisture vapor transmission rate exceeding 1000 gms/m (b) a continuous Hydrophilic layer attached to the inner face of said first layer, said hydrophilic layer having a moisture vapor transmission rite exceeding 1000 gms/m