US 12,135,003 B2
Behavioral guidance system for fish
Abraham D. Schneider, San Francisco, CA (US); and Sterling Marina Watson, San Francisco, CA (US)
Assigned to Natel Energy Holdings, Inc., Alameda, CA (US)
Appl. No. 17/924,506
Filed by Natel Energy Holdings, Inc., Alameda, CA (US)
PCT Filed May 13, 2021, PCT No. PCT/US2021/032288
§ 371(c)(1), (2) Date Nov. 10, 2022,
PCT Pub. No. WO2021/231755, PCT Pub. Date Nov. 18, 2021.
Claims priority of provisional application 63/024,498, filed on May 13, 2020.
Prior Publication US 2023/0175468 A1, Jun. 8, 2023
Int. Cl. F03B 11/00 (2006.01)
CPC F03B 11/00 (2013.01) 18 Claims
OG exemplary drawing
 
1. 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.