US Patent 7114756 Thermal barriers and seals for climate controlled transportation

In certain embodiments, a thermal barrier can be removably attached to portals such as trailer doors, partitions, bulkheads, and the like. In one embodiment, a flexible thermal barrier having an associated flexible seal is attached to an interior surface of a roll-up trailer door in a refrigerated trailer to insulate the cargo area from the ambient air. In other embodiments, seals mounted to the trailer wall cooperate with an insulating blanket disposed on a portal such as a roll-up door. In still other embodiments, wall mounted seals are used alone, without a blanket, to provide peripheral thermal sealing.