Vortex generating sand and snow fence
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United States of America Patent
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Aug 24, 2010
Grant Date -
Nov 9, 2006
app pub date -
May 5, 2006
filing date -
May 5, 2005
priority date (Note) -
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Abstract
A sand dune or snow fence having slats with a substantially triangular cross-section, rather than rectangular slats. The slats are arranged to eliminate parallel surfaces there between such that air moving between the slats is not compressed or accelerated. The non-parallel surfaces provided by the triangular slats disrupt the flow of air and generate vortices. One configuration includes multiple wings radiating from a center post and anchored on each end by an end post. The asterisk-pattern of this configuration provides a robust structure sufficient to survive extreme weather. Accordingly, this design provides the additional benefit of eliminating the cost associated with replacing damaged and lost fences of the prior art.
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