07931449 is referenced by 35 patents and cites 155 patents.

A bladeless fan assembly (100) for creating an air current comprises a nozzle (1) mounted on a base (16) housing for creating an air flow through the nozzle (1). The nozzle (1) comprises an interior passage (10) for receiving the air flow from the base (16) and a mouth (12) through which the air flow is emitted. The nozzle (1) extends about an axis to define an opening (2) through which air from outside the fan assembly (100) is drawn by the air flow emitted from the mouth (12). The nozzle (1) comprises a surface over which the mouth (12) is arranged to direct the air flow. The surface comprises a diffuser portion (46) tapering away from the axis, and a guide portion (48) downstream from the diffuser portion (46) and angled thereto.

Title
Fan
Application Number
12/560232
Publication Number
7931449 (B2)
Application Date
September 15, 2009
Publication Date
April 26, 2011
Inventor
Peter David Gammack
Wiltshire
GB
Frederic Nicolas
Wiltshire
GB
Nicholas Gerald Fitton
Wiltshire
GB
Agent
Morrison & Foerster
Assignee
Dyson Technology
GB
IPC
F04F 5/44
F04B 23/08
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