Fish conveying apparatus

Details Fish conveying apparatus Fish conveying apparatus

1988-09-14

1990-02-27

Reese, Randolph A.

Hydraulic and earth engineering

Fluid control, treatment, or containment

Flow control

405 80, F02B 808

Patent

active

049041142

ABSTRACT:
A device for assisting fish to circumnavigate obstacles such as dams is provided with a system of chambers within each of which is disposed an inclined, water permeable, floating screen movable up and down depending on the level of water in the chamber. The level of water is controlled by a system of strategically located gates and valves. The lowermost chamber is provided with a siphon-like arrangement assisting the draining of the chamber, without the need for a pump. The invention simplifies the overall arrangement and its operation.

REFERENCES:
patent: 1591450 (1926-07-01), Wheeler
patent: 1680722 (1928-08-01), Bennett et al.
patent: 2089142 (1937-08-01), Waters
patent: 2102629 (1937-12-01), Knerr
patent: 2119540 (1938-06-01), Holmes et al.
patent: 3377805 (1968-04-01), Warner
patent: 3820342 (1974-06-01), Stipanov
patent: 3853317 (1974-12-01), Braunhut
patent: 3868324 (1975-02-01), Taylor et al.
patent: 3938340 (1976-02-01), Downs
patent: 4431340 (1984-02-01), Truebe et al.

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