Patent ID: 8764412

Claim:
A bladeless fan assembly for creating an air current, the fan assembly comprising: a nozzle, and a device for creating an air flow through the nozzle, the nozzle comprising an interior passage, located between a first wall and a second wall, wherein a distal end of the first wall overlaps a distal end of the second wall to form, near the distal ends of the first and second walls, a mouth for receiving the air flow from the interior passage, a tapered region, located downstream from the mouth, and an outlet, located downstream of the tapered region, for releasing the air flow from the nozzle, wherein a distance between the first wall and the second wall is greater at the mouth than at the outlet, and a Coanda surface located adjacent the outlet, wherein the first wall is curved proximate to its distal end to direct the air flow over the Coanda surface, and wherein the nozzle is substantially annular, and defines an opening through which air from outside the fan assembly is drawn by the air flow directed over the Coanda surface.