Importance

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Abstract

An air diffuser for directing air through an elongated opening in a drop ceiling in a pattern directed along the plane of the ceiling comprises a plenum chamber from which air is directed through a pair of spaced parallel walls forming a duct communicating with the elongated opening. The opening is narrower than the space between the walls so as to form a ledge adjacent the inside of at least one of the walls. A first baffle positioned in the plenum chamber and projecting into the space between the walls forms a throat through which air is directed downwardly against the ledge, the ledge diverting the air out through the opening in a substantially horizontal pattern. A second horizontal baffle within the plenum chamber directs air through a substantially horizontal throat toward the opposite wall and ledge where the air is redirected out the opening in the same horizontal pattern.

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First Claim