Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Patent
1994-12-28
1997-10-07
Graysay, Tamara L.
Hydraulic and earth engineering
Fluid control, treatment, or containment
Flow control
405 80, 405 39, E02B 806
Patent
active
056740298
ABSTRACT:
A weir structure for controlling liquid flow in a channel having a floor and side walls comprising a barrier extending between the sidewalls of the channel and from the floor of the channel to a crest to separate the channel into an upstream region and a downstream region. Fluid in the channel flows from the upstream region to the downstream region by overflowing the barrier at the crest. The barrier is formed with at least one passage through the barrier positioned and dimensioned to allow for free, unregulated fluid flow through the passage from the upstream region to the downstream region whenever fluid is overflowing the barrier to increase flow past the barrier.
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Emmett Peter W.
Gaetz John R.
Smith Martin A.
Sommerville Douglas F.
Graysay Tamara L.
Lagman Frederick L.
UV Waterguard Systems, Inc.
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