Patent ID: 7697285

Claim:
An electronic equipment enclosure comprising: (a) a frame structure; (b) one or more enclosure panels mounted on the frame structure, the frame structure and the one or more enclosure panels together defining an enclosure; (c) an exhaust duct which is substantially the same height as the enclosure and has an air inlet opening formed therein for receipt of exhaust air from equipment mounted in the enclosure; and (d) at least one adjustable filler panel assembly for selectively blocking portions of the air inlet opening in order to prohibit air exhausted into the duct from flowing back into the enclosure; (e) wherein the exhaust duct is disposed internally relative to the one or more enclosure panels; and (f) wherein the adjustable filler panel assembly includes a first panel and a second panel that are telescopically adjustable relative to one another such that a length of the filler panel assembly is selectively adjustable to fill a portion of the air inlet opening, thereby blocking air from flowing through the opening.