Fluid movement apparatus
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United States of America Patent
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-
Jul 5, 2005
Grant Date -
Feb 12, 2004
app pub date -
Sep 7, 2001
filing date -
Sep 8, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Apparatus suitable for venting and dispensing gas from an area of ground. The apparatus comprising a passage arrangement locatable in the ground extending generally horizontally and formed from a plurality of self-supporting open units. One or more columns extends downwardly from the passage, the columns being formed of a core material having an open permeable structure. The or each column has a fluid permeable exterior, and is in communication with the passage.
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- Non-US Classification not provided for expired patents
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