Underdrain system
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United States of America Patent
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-
Nov 8, 2011
Grant Date -
Jan 3, 2008
app pub date -
Jun 22, 2007
filing date -
Apr 10, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filter system for filtering water and/or wastewater which includes an underdrain system having a plurality of laterals that are anchored to the floor of a filter by a hold-down assembly. Preferably, the hold-down assembly does not rely on grout or other substance that is applied in a viscous or semi-viscous state and subsequently hardened as the primary means for connecting the underdrain laterals to the floor of the filter. Preferably, the hold-down assembly includes hold-down clips that can move relative to an anchor assembly and corresponding underdrain blocks so that the hold-down clips can cooperate with any desired portion of the corresponding underdrain blocks.
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