Barrel type air diffuser

Claim 2

A barrel-type air diffuser for providing both horizontal and vertical controls of air streams including, in combination: a frame member providing a central rectangularly-shaped opening; a barrel-shaped member fitting the opening of the frame member with slight clearance with the side and end sections thereof, said barrel member being opened along one side to serve as an air inlet and being opened on the opposite side to serve as an air outlet; pivot mounts carried by the frame member and connected to the barrel member for providing limited rotation thereof about an axis generally corresponding to that of the barrel member and disposed parallel to the plane of the frame member; an outlet duct mounted on the barrel member in surrounding relation to the air outlet opening thereof and having the side and end walls thereof projecting outwardly beyond the opening to serve as a nozzle for controlling the direction of the air stream discharged through the outlet opening of the barrel member; a plurality of similarly formed vanes mounted crosswise in the outlet duct of the barrel member in spaced apart relation to one another for further controlling the direction of the air stream discharged from the outlet duct; and said air inlet of the barrel member as well as the interior of the barrel member being free of any obstruction to the flow of air through the barrel member to the outlet duct.

Claim 3

The air diffuser defined in claim 1 wherein said plurality of vanes are each mounted for pivotal movement about parallel axes extending across the outlet duct from one side wall section to the opposite side wall section thereof, and wherein a part of each vane extends through one of said side wall sections of the outlet duct for adjusting the pivotal position of the vane.

Claim 4

The air diffuser defined in claim 2 wherein the part on the outlet duct for adjusting the pivotal positions of the vanes comprises a pivot rod fixedly associated with each vane for joint pivotal movement having an end portion of the rod extending through a side wall section of the duct adjacent to but forwardly of the curved exterior of the barrel shaped member, and means on the end portion of each such rod for releasably locking its associated vane in pivotally adjusted position.

Claim 5

The air diffuser defined in claim 3 wherein the means for releasably locking each vane in pivotally adjusted position is a member threadedly engaging the end portion of each rod and operative to releasably clamp the rod and its vane to the wall section of outlet duct through which the end portion of the rod extends.

Claim 6

The air diffuser defined in claim 4 wherein the interior cross sectional area of the air outlet opening of the barrel-shaped member is approximately half that of the air inlet opening of the barrel-shaped member.

Claim 7

A barrel-type air diffuser for controlling the direction of air streams including, in combination: a frame member providing a central rectangularly-shaped opening; a barrel-shaped member substantially fitting the opening of the frame member and having side portions thereof located on opposite sides of the plane of the frame member, the cylindrical wall of said barrel-shaped member being opened along one side portion to serve as an air inlet and being opened on the opposite side portion to serve as an air outlet; pivot mounts carried by the frame member and connected to the barrel member for providing limited rotation thereof about an axis generally corresponding to that of the barrel member and disposed parallel to the plane of the frame member; an outlet duct mounted on the barrel member in surrounding relation to the air outlet opening thereof and having its side and end wall sections thereof projecting forwardly beyond the opening to serve as a nozzle for controlling the direction of the air stream discharged through the outlet opening of the barrel member; a plurality of vanes mounted crosswise in the outlet duct of the barrel member in spaced apart relation to one another and further acting to control the direction of the air stream discharged from the outlet duct, each of said vanes being secured to a pivot rod which has an end portion thereof extending through a side wall of the outlet duct and projecting externally of the duct and forwardly of the curvature of that surface of revolution conforming to the cylindrical wall of the barrel-shaped member; means operatively associated with the externally projecting end portion of each such pivot rod for releasably locking its associated rod and vane in pivotally adjusted position in the outlet duct; and said air inlet of the barrel member as well as the interior of the barrel member being free of any obstruction to the flow of air through the barrel member to the outlet duct.

Claim 8

A barrel-type air diffuser for controlling the direction of air streams including, in combination: a frame member providing a central rectangularly-shaped opening; a barrel-shaped member substantially fitting the opening of the frame member and having side portions thereof located on opposite sides of the plane of the frame member, the cylindrical wall of said barrel-shaped member being opened along one side portion to serve as an air inlet and being opened on the opposite side portion to serve as an air outlet; pivot mounts carried by the frame member and connected to the barrel member for providing limited rotation thereof about an axis generally corresponding to that of the barrel member and disposed parallel to the plane of the frame member; an outlet duct mounted on the barrel member in surrounding relation to the air outlet opening thereof and having its side and end wall sections thereof projecting forwardly beyond the opening to serve as a nozzle for controlling the direction of the air stream discharged through the outlet opening of the barrel member; a plurality of vanes mounted crosswise in the outlet duct of the barrel member in spaced apart relation to one another and further acting to control the direction of the air stream discharged from the outlet duct, each of said vanes being secured to a pivot rod which has an end portion thereof extending through a side wall of the outlet duct and projecting externally of the duct and forwardly of the curvature of that surface of revolution conforming to the cylindrical wall of the barrel-shaped member; means operatively associated with the externally projecting end portion of each such pivot rod for releasably locking its associated rod and vane in pivotally adjusted position in the outlet duct; and said air inlet of the barrel member as well as the interior of the barrel member being free of any obstruction to the flow of air through the barrel member to the outlet duct.

Claim 9

The air diffuser defined in claim 6 wherein the rods for said plurality of vanes are mounted for pivotal movement about parallel axes extending across the outlet duct from one side wall section to the opposite side wall section thereof, the mid portions of said rods being located within the curvature of that surface of revolution conforming to the circumference of the barrel member.

Claim 10

The air diffuser defined in claim 7 wherein the means for releasably locking each vane in pivotally adjusted position is a nut which threadedly engages the externally projecting end portion of each rod and which is operative when threaded in one direction to releasably clamp the rod to the outlet duct thereby to hold the rod and its vane in adjusted position.

Claim 11

A barrel-type air diffuser for controlling the direction of air streams including, in combination: a barrel-shaped member dimensionally shaped to fit within the opening of an air duct such as to have side portions thereof located on opposite sides of the plane of the duct opening, the cylindrical wall of said barrel-shaped member being opened along one side portion to serve as an air inlet and being opened on the opposite side portion to serve as an air outlet; pivot mounts carried by the barrel-shaped member for mounting the same in an opening in an air duct for rotation about an axis generally corresponding to that of the barrel member and disposed parallel to the plane of the duct opening in which the barrel member is installed; an outlet duct mounted on the barrel member in surrounding relation to the air outlet opening thereof and having its side and end wall sections thereof projecting forwardly beyond the opening to serve as a nozzle for controlling the direction of the air stream discharged through the outlet opening of the barrel member; a plurality of vanes mounted crosswise in the outlet duct of the barrel member in spaced apart relation to one another and further acting to control the direction of the air stream discharged from the outlet duct, each of said vanes being secured to a pivot rod which has an end portion thereof extending through a side wall of the outlet duct and projecting externally of the duct, and beyond the curvature of that surface of revolution conforming to the cylindrical wall of the barrel-shaped member; means operatively associated with the externally projecting end portion of each such pivot rod for releasably locking its associated rod and vane in pivotally adjusted position in the outlet duct; and said air inlet of the barrel member as well as the interior of the barrel member being free of any obstruction to the flow of air through the barrel member to the outlet duct.

Claim 12

A barrel-type air diffuser for controlling the direction of air streams including, in combination: a barrel-shaped member dimensionally shaped to fit within the opening of an air duct such as to have side portions thereof located on opposite sides of the plane of the duct opening, the cylindrical wall of said barrel-shaped member being opened along one side portion to serve as an air inlet and being opened on the opposite side portion to serve as an air outlet; pivot mounts carried by the barrel-shaped member for mounting the same in an opening in an air duct for rotation about an axis generally corresponding to that of the barrel member and disposed parallel to the plane of the duct opening in which the barrel member is installed; an outlet duct mounted on the barrel member in surrounding relation to the air outlet opening thereof and having its side and end wall sections thereof projecting forwardly beyond the opening to serve as a nozzle for controlling the direction of the air stream discharged through the outlet opening of the barrel member; a plurality of vanes mounted crosswise in the outlet duct of the barrel member in spaced apart relation to one another and further acting to control the direction of the air stream discharged from the outlet duct, each of said vanes being secured to a pivot rod which has an end portion thereof extending through a side wall of the outlet duct and projecting externally of the duct, and beyond the curvature of that surface of revolution conforming to the cylindrical wall of the barrel-shaped member; means operatively associated with the externally projecting end portion of each such pivot rod for releasably locking its associated rod and vane in pivotally adjusted position in the outlet duct; and said air inlet of the barrel member as well as the interior of the barrel member being free of any obstruction to the flow of air through the barrel member to the outlet duct.