Multiple blade window fan

Details Multiple blade window fan Multiple blade window fan

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 3/00 (2006.01) F01D 1/00 (2006.01) F24F 7/013 (2006.01)

Patent

CA 2154150

A portable window fan including a housing having a bottom wall for mounting on a sill of a window with an open sash, a top wall for engaging the open sash, a rear wall defining a plurality of inlet openings, and a front wall defining three substantially aligned discharge openings spaced apart in a given direction substantially parallel to the top wall. Also included are three fan blades mounted within the housing, each fan blade arranged to produce air flow through a different one of the discharge openings; an electrical drive coupled to the fan blades and operative to induce rotation thereof; and a grill mechanism covering the discharge openings.

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