Ventilation system
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United States of America Patent
Stats
-
Jul 11, 2006
Grant Date -
Jun 24, 2004
app pub date -
Apr 8, 2003
filing date -
Dec 24, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a ventilation system that allows air to circulate in a building but excludes pests such as birds, insects, moths and flies to enter the building. The ventilation system includes at least one vent comprising an aperture in the roof of the building and at least one fabric member adapted to be attached to the roof inside the building, below the vent(s) and between the vent(s) and the interior of the building. The present invention also relates to a building including the ventilation system, a truss arrangement that may form part of the ventilation system and a retaining rail for use in the ventilation system. The system of the invention has particular, but not exclusive, application to greenhouses and animal shelters.
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International Classification(s)
Cited Art Landscape
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