Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Patent
1997-07-31
1999-09-07
Graysay, Tamara L.
Hydraulic and earth engineering
Fluid control, treatment, or containment
Flow control
137372, 138109, 138118, 405 36, 405127, E02B 300, F16L 1100
Patent
active
059476400
ABSTRACT:
A portable water conveyance device for diverting the flow of water and particularly, a stream, includes a collapsible tube for receiving the water and conveying the water downstream to a discharge site. An inlet frame is coupled to the inlet end of the tube to hold the end of the tube open and direct the water into the tube. A pair of pivotally mounted wing walls are attached to the sides of the walls to direct the water into the tube. In embodiments, an outlet frame is coupled to the discharge end of the tube. The outlet frame is mounted on a support structure to adjust the height of the outlet frame with respect to the ground and water level at the discharge end of the tube. A ledge is attached to the lower end of the outlet frame and extends outwardly therefrom in the downstream direction. The shelf extends a distance to inhibit the upstream migration of marine animals that may climb up the support structure. The height of the outlet frame also can be adjusted to control the migration of marine life.
REFERENCES:
patent: 530655 (1894-12-01), Richardson
patent: 2652798 (1953-01-01), Reed
patent: 3772891 (1973-11-01), Raistakka
patent: 4437431 (1984-03-01), Koch
patent: 4629361 (1986-12-01), Zimmerman
patent: 5242244 (1993-09-01), Dockery
Graysay Tamara L.
Mayo Tara L.
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