Door and frame for air handling unit

Static structures (e.g. – buildings) – Framing to receive door – doorjamb – or window sash

Reexamination Certificate

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C049S400000, C052S793100

Reexamination Certificate

active

07430835

ABSTRACT:
A door and frame combination for an air handling unit consists of a frame, a hinged door with a hollow core filled with insulating material, and a gasket having a flexible gasket wall with anti-roll extensions. The gasket may have a friction-reducing material on its surface to assist in preventing roll-over by the closing door. Optional thermal pockets in the door and frame are filled with high-density polyurethane to provide further protection against air leakage.

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patent: 5921043 (1999-07-01), McDonald
Temtrol Catalog, pp. 1-25, Jan. 1998.

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