Ventilation apparatus arrangements
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United States of America Patent
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Oct 20, 2015
Grant Date -
Jul 19, 2012
app pub date -
Jan 17, 2011
filing date -
Jan 17, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A ventilation apparatus arrangement 10 for ventilating the interior 12 of a building. The ventilation arrangement 10 includes a duct 18 extending to above the roof 14 of the building. The duct 18 is square in cross section and is divided into four quadrants by internal vertical divider plates. A louvre arrangement 22 is provided on each side of the upper part of the duct 18 to receive air into the building on a windward side of the duct 18, and to expel air from a leeward side of the duct 18. A closure arrangement 26 is provided for selectively partially or wholly closing the louvre arrangements 22, for instance in the event of bad weather.
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