Fish repelling apparatus using a plurality of series connected p

Details Fish repelling apparatus using a plurality of series connected p Fish repelling apparatus using a plurality of series connected p

1987-02-03

1988-06-14

Hirsch, Paul J.

Animal husbandry

Entomological culture device

Egg treatment, production, or storage

A01K 6900, A01K 7900

Patent

active

047504510

ABSTRACT:
An electric barrier for discouraging the passage of fishes through a natural or artificial waterway, or for repelling fishes from the vicinity of an underwater structure in a waterway. A submerged electrode array is provided for electrifying at least a portion of a waterway when energized by a plurality of electric pulse generators. The outputs of the pulse generators are connected in series and each is also connected to a separate electrode of the array so that when synchronously triggered, the outputs are in phase and additive in amplitude along the electrode array. In a preferred embodiment of the invention, each pulse generator is adjustable in output amplitude so that the electric field gradients along the electrode array can be adjusted to minimize the injury to fishes repelled by the barrier.

REFERENCES:
patent: 1095170 (1914-04-01), Steinmetz
patent: 1974444 (1934-09-01), Burkey
patent: 1997064 (1935-04-01), Lusignan, Jr.
patent: 2233045 (1941-02-01), Bonner et al.
patent: 2405069 (1946-07-01), Tonks

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