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Class Information
Number: 405/88
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Water gate or adjustable weir > Center flow
Description: Method or apparatus wherein a hollow flow regulating member is movably mounted on a submerged takeoff whereby liquid flows in a controllable fashion across the perimeter of and through the hollow member into the takeoff.

Patents under this class:

Patent Number Title Of Patent Date Issued
6604889 Sluice gate wall thimble Aug. 12, 2003
6474361 Floating weir assembly and fluid flow management system comprising same Nov. 5, 2002
5680989 Adjustable weir for liquid distribution systems Oct. 28, 1997
4669914 Hydrologic discharge control assembly and method Jun. 2, 1987
4146346 Apparatus and method for controlling tide waters Mar. 27, 1979

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