Abstract: An air diffuser assembly for use in combination with an underfloor air distribution system, where the system includes in part a cavity under a floor, having an upper surface, transmitting air under pressure to selected locations above the floor. The air diffuser assembly comprises first and second annular rings threadably engaging one another and secured respectively to above and below the floor, where the first annular ring includes an annular shoulder for receiving a grill assembly. The grill assembly is seated on the shoulder and is in communication with the space above the upper surface. The grill assembly further includes a centrally disposed, downwardly extending, vertically adjustable rod mounting a circular basket at its free end. The basket includes an array of through holes for delivering pressurized air from the underfloor cavity to the diffuser assembly, and means, such as a rod, connecting the basket to the grill assembly to prevent rotation of the basket.

Abstract: A floor outlet for an air conditioner has a grill which is formed by ring elements whose radial connecting ribs are inclined to impart a vortex flow to the emerging air. A central baffle body is constituted by a disc and a multiplicity of angularly equispaced radially extending blades twisted out of the plane of the disc and projecting therefrom.

Abstract: The invention concerns a ceiling air outlet, especially for air-conditioned areas, with a housing which can be connected to a supply air line and has a separating wall, two flow paths and an outlet grate, whereby an adjustment flap is located in at least one of the flow paths. In order to maintain a stable flow of areal air under a variable amount of supply air furnished by the air-conditioning system, the separating wall is positioned essentially parallel to the outlet grate and has at least one opening which can be closed by the adjustment flap. A series of jet openings or jet slits directed toward the outlet grate are located in the separating wall at least in the area of the free edge of the adjustment flap.

Abstract: An air conditioning system ceiling air outlet comprising a warm air duct for vertically downward direction of warm air, a cold air duct surrounding the warm air duct for outwardly directing cold air, the ducts terminating at their inlet ends in a common connecting stub, covering plates for the intake ends of each of the ducts and mounted in the connecting stub, the covering plates being mounted on a common axis of rotation and at an angle to each other so that when one of said ducts is closed by one of said plates, the other of said ducts is open.

Abstract: A ceiling air outlet for a climate control system having a first outflow channel for receiving air and delivering it in a substantially horizontal direction from an outlet surface, a second outflow channel for receiving air and delivering it in a substantially vertically downward direction from the outlet surface, the first and second outflow channels having at their inlet ends a common air supply channel, and a damper mounted in the connecting region of the first and second overflow channels and the supply channel for automatically regulating the air flow into one of the outflow channels in response to the volume flow of air, the damper closing the outflow channel in response to lower volume flow of air and opening the outflow channel in response to higher volume flow of air, whereby the speed of the air delivered from the outlet surface is maintained at an adequate level.