Behavioral guidance system for fish
AssigneeNatel Energy Holdings, Inc.
InventorsAbraham D. Schneider, Sterling Marina Watson
Life of this patent
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Abstract
Disclosed herein is a device for directing fish toward a preferred path in a water passageway. The device includes a base and a plurality of spaced bars coupled to the base and cantilevered from the base. The plurality of spaced bars are electrified in anode cathode pairs. The plurality of spaced bars can extend from the base to form a frustoconical shape such that the spaced bars direct fish toward a hydraulic turbine blade hub and away from a hydraulic turbine blade tip. Alternatively, the plurality of spaced bars can extend from the base to form a linear array.
Claims18
A guidance device for directing fish toward a relatively safe path through a hydraulic turbine, the guidance device comprising:
- a base;
- and
- a plurality of spaced bars coupled to the base,
- wherein the plurality of spaced bars extend from the base to form a frustoconical shape such that the plurality of spaced bars direct fish toward a hydraulic turbine blade hub and away from a hydraulic turbine blade tip, and
- wherein at least one of the plurality of spaced bars is electrified.
An assembly, comprising:
- a hydraulic turbine;
- and
- a guidance device mounted to the turbine, the guidance device comprising:
- a base;
- and
- a plurality of spaced bars coupled to the base,
- wherein the plurality of spaced bars extends from the base to form a frustoconical shape such that the plurality of spaced bars direct fish toward a hydraulic turbine blade hub and away from a hydraulic turbine blade tip, and
- wherein at least one of the plurality of spaced bars is electrified.
Dependencies are inferred from the claim text.