Multiple blade window fan
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United States of America Patent
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-
Sep 9, 1997
Grant Date -
N/A
app pub date -
Feb 28, 1995
filing date -
Feb 28, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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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