초록 ▼

A low profile ceiling duct assembly to be used with rooftop air conditioners. The unit combines an octagonal sheet metal ceiling plate which provides the upper portion of a plenum chamber; this extending into the roof space above a ceiling opening. The lower plenum portion is provided by the molded

A low profile ceiling duct assembly to be used with rooftop air conditioners. The unit combines an octagonal sheet metal ceiling plate which provides the upper portion of a plenum chamber; this extending into the roof space above a ceiling opening. The lower plenum portion is provided by the molded plastic octagonal air distributor box, mounted against the edges of the plate and extending into the room space sufficiently to afford air flow sidewardly outward from the plenum. The air distributor box has outlet grilles at alternate sides of the octagon. They discharge air in four directions along the ceiling line while return air is drawn centrally upward.

대표청구항 ▼

For use with an air conditioner to be installed on the roof spaced above a ceiling over room space, a ceiling distributor duct assembly comprising A. a substantially planar ceiling plate, having there-through, at the plane of said plate, a return air opening and a conditioned air discharge opening,

For use with an air conditioner to be installed on the roof spaced above a ceiling over room space, a ceiling distributor duct assembly comprising A. a substantially planar ceiling plate, having there-through, at the plane of said plate, a return air opening and a conditioned air discharge opening, both located adjacent to each other in fore-and-aft relationship substantially along a centerline of said plate, said conditioned air discharge opening being part of an upper plenum portion including a plenum inlet having duct connector means above the plane of said ceiling plate, forward-and-aft walls transverse to such centerline and reaching down at least to said plane, and plenum sides diverging outwardly and downwardly to the plane of said plate, in combination with B. a molded plastic air distributor box having a bottom wall terminating in an outer margin presented sealedly against the ceiling plate, said air distributor box bottom wall having a return air opening adapted to communicate with the said return air opening of said ceiling plate, and having a bottom plenum wall portion at a depth beneath said ceiling plate sufficient to afford air flow sidewardly outward from said plenum inlet, there being provided, as between said ceiling plate and said air distributor box bottom wall, vertical walls along the forward-and-aft sides of said bottom plenum wall portion, and a pair of vertical walls bounding those sides of said distributor box return air opening which continue forwardly from that wall at the forward side of said plenum and extend to said outer margin, whereby those bottom wall portions sideward of the said bounding vertical walls comprise, with the, duct boundaries extending sidewardly outward from said plenum inlet and forward along the sides of said return air opening to adjacent outer margin portions of the bottom wall, there being outlet grilles along said outer margin at the forward ends of said boundaries.