Wall mounted ventilating device

Claim 1

A ventilating device for a room having a ceiling, floor, and wall, said room having a stratum of hot air along the ceiling, said ventilating device comprising: an elongated duct extending in a generally vertical direction and mountable on the wall, said duct having vertical front and back walls joined by a pair of spaced side walls, said duct having an upper end positionable near the ceiling and a lower end; and a blower mounted on the lower end of said duct adjacent the floor of the room, said blower including a housing having side walls, a front wall, and a back wall forming extensions of the corresponding walls of said duct, the upper portion of said front wall of said housing diverging in its downward extension out of alignment with said vertical front wall and away from the plane of the back wall of said duct, the portion of said front wall immediately below said upper portion converging in its downward extension toward the plane of the back wall of said duct to present a surface orientatable toward the floor of the room when the duct is mounted on the wall of the room, a fan of the axial flow type mounted in said housing for drawing hot air down the duct and for imparting an increased velocity thereto, a plenum located axially in front of said fan and between said side walls of said housing for receiving the air from said fan, said plenum having a port in said converging portion of said front wall of said housing for discharging said air from said plenum into the room angularly downward toward the floor, said discharge port having means to project the discharged air into the room in a laminar flow.