Apparatus for fish protection

Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control

Patent

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Details

210460, 405 42, 405 80, E01F 500, E02B 300

Patent

active

043370080

ABSTRACT:
A specific feature of the present invention comprising a water-permeable screen mounted on a perforated suction pipe is that located therein between the screen and the pipe are partitions the length of contour of which resting on the screen decreases towards the perforated pipe inlet, the screen surface defined by two adjacent partitions being superior to that of the pipe between the same partitions, whereas the partitions on said pipe are disposed in a manner such that the hydraulic resistances therebetween will increase in proportion to the distance from the partitions to the perforated pipe inlet.

REFERENCES:
patent: 1060616 (1913-05-01), Murray
patent: 1077132 (1913-10-01), Erickson
patent: 1109385 (1914-09-01), Allison
patent: 1644121 (1927-10-01), Greene
patent: 1977464 (1934-10-01), White
patent: 2311606 (1943-02-01), Bannister
patent: 2668624 (1954-02-01), Wahlin
patent: 2774569 (1956-12-01), Jacobsen
patent: 3826372 (1974-07-01), Bell
patent: 4057968 (1977-11-01), Scott

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