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US 3,940,867 AGranted
Guidance valve for fish pumps
OwnerMatthew John Sikichinventor
Life of this patent
Estimating the term…
Abstract
An intake guidance valve for connection to an intake opening of a fish pump having a frusto-concial shield open at its small end and at its base. A conical deflector is mounted on and axially of the shield in a plurality of vanes which extend at an end beyond the base of the shield and at their other ends towards but short of the apex of the deflector so as to provide a plurality of upwardly tapering guidance passages. An annular flange projects radially from the base of the deflector so that water and fish are drawn radially into the guidance passages.
Claims4
An intake guidance valve for fish pump apparatus having a centrifugal pump comprising:
- a. a substantially frusto-conical shield open at each end connectable at its smaller end to the intake of the pump apparatus,
- b. a substantially conical deflector disposed in and co-axially of the shield and spaced from walls of the shield so as to provide a tapering annular passage, the deflector extending outwards of the open end of the shield,
- c. an annular flange extending radially from the base of the deflector and spaced from the base of the shield,
- d. guidance vanes disposed between the walls of the deflector and the shield dividing the annular passage into a plurality of upwardly tapering guidance passages, said vanes extending from the annular flange towards, but short of the apex of the deflector.
1 more element
Dependencies are inferred from the claim text.