Patent ID: 6011689
Filing Date: 2000-01-04
Classification: G06F,H05K

Abstract:
In a computer comprising a number of heat generating electrical components that require cooling,at least two cooling fans arranged adjacent to each other,a facility constructed to support said fans,said fans each comprising an inlet side and an outlet side,each said fan comprising a fan opening,a vent facility for each said fan,a facility for each said vent facility for supporting and locating said vent facility adjacent to an associated fan,each said vent facility comprising an opening aligned with and at least substantially as large in area as the area of an associated fan opening,a vane facility for each said vent facility,each said vane facility comprising a series of elongated substantially equal length slats having relatively narrow planar uniform widths,said slats having fan air flow open and fan airflow closed positions,said slats of each vane facility having a side by side parallel adjacent relationship to each other and arranged to at least substantially cover the entire area of an associated opening when in said closed position, andeach said vent facility comprising a facility constructed to pivotally support its associated slats from common opposed sides of said vent facility in a manner that airflow created by said associated fan causes movement of said associated slats in a direction relative to said associated fan to allow airflow by said associated fan through said opening of said associated fan relative to said components and in the absence of airflow from said associated fan to allow said associated slats to close off said associated fan opening preventing airflow through said associated fan opening.