Fish lifting device

Details Fish lifting device Fish lifting device

1989-07-03

1990-06-12

Rowan, Kurt

Fishing, trapping, and vermin destroying

Fishing

Gathering or catching device with conveyer to boat

A01K 7100

Patent

active

049321498

ABSTRACT:
Fish lifting devices using the principle of the Archimedes' screw are known. Such devices have used a latticework screw entry portion to dewater the screw at the point of entry of the fish. The present invention provides a venting system which causes a fish-attracting current at the entry to the device and further substitutes more economical dewatering slots in the outer shell for the lattice-work screws.

REFERENCES:
patent: 2163282 (1939-06-01), Hovden
patent: 2573907 (1951-11-01), Humphreys
patent: 2736121 (1956-02-01), Kimmerle
patent: 2760624 (1956-08-01), Compton
patent: 3314184 (1967-04-01), Lerch
patent: 3768193 (1973-10-01), London
patent: 4193737 (1980-03-01), Lemmon
patent: 4217718 (1980-08-01), Faivre
patent: 4551938 (1985-11-01), Sheldon

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