Patent ID: 7430835
Filing Date: 2008-10-07
Classification: E06B,F24F

Abstract:
1. A hinged door and frame in combination with an air handling unit fixedly mounted on a fixed structure, the combination comprising: (a) the hinged door engageable with the frame, the door further comprising a front wall, rear wall, and side walls enclosing a hollow core and insulating material filling the hollow core; wherein the insulating material is expanding polyurethane foam; and (b) a gasket between the door and the frame, the gasket further comprising a flexible gasket wall with anti-roll extensions, and further comprising a friction reducing material on the gasket wall; (c) opposed thermal pockets in the door and in the frame, the thermal pockets being filled with high-density polyurethane; and wherein the door and frame can withstand a pressure differential of greater than eleven inches of air pressure.