Patent ID: 8308445

Claim:
A bladeless fan assembly for creating an air current, the fan assembly comprising: a nozzle, and a device creating an air flow through the nozzle, the nozzle comprising an interior passage, formed 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 a thickness of the first wall decreases near the distal end, and a thickness of the second wall increases near the distal end.