Air supply and exhaust grill

Details Air supply and exhaust grill Air supply and exhaust grill

F - Mech Eng,Light,Heat,Weapons

24

F

F24F 13/08 (2006.01) F24F 13/062 (2006.01)

Patent

CA 2071748

An air supply and exhaust grill which requires no tools or fixtures for assembly of the components thereof and which provides for convenient manual adjustment of air flow therethrough. The device is preferably circular about a longitudinal axis to facilitate connection to a round air conduit and to providea distinctive finished appearance, and includes an outer and an inner housing each having a main tubular portion and a radially extending flange. The inner tubular member is frictionally adjustable axially within the outer housing so asto control the air gap between the two flanges. Mating notches and stop are also provided between inner and outer housings which are selectively engagable by rotation of the inner housing.

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