Patent ID: 6676234
Filing Date: 2004-01-13
Classification: E04B,E04C,F24F

Abstract:
In an air handling unit containing a framework having rectangular openings therein that is formed of structural elements, a panel for closing the openings in said framework that includesa rectangular frame having opposed side walls and opposed end walls, each wall containing an upper channel opening to the top of said wall and a lower channel opening to the bottom of said wall, an upper cover and a lower cover each having a skirt that extends around the periphery of said cover, wherein the skirt of the upper cover is contained in the upper channel of said frame and the skirt of the lower cover is contained in the lower channel of said frame to establish a cavity within said panel, a curable foam material filling said cavity which sets to bond the frame walls and the covers together in assembly; and wherein said frame contains an inwardly directed recess that encircles said frame and wherein a plurality of locking arms contained within said structural elements are receivable within said recess for securing the panel in said opening.