The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2025
Filed:
Feb. 03, 2022
Eth Zurich, Zurich, CH;
Fäh Maschinen- Und Anlagenbau Ag, Glarus, CH;
Wälli Ag Ingenieure, St. Gallen, CH;
David Vetsch, Wohlenschwil, CH;
Robert Boes, Samstagern, CH;
Claudia Beck, Zürich, CH;
Ismail Albayrak, Zürich, CH;
Claudia Leuch, Brugg, CH;
Res Lütschg, Mollis, CH;
Tobias Rüesch, Herisau, CH;
ETH Zurich, Zurich, CH;
Fäh Maschinen- und Anlagenbau AG, Glarus, CH;
Wälli AG Ingenieure, St. Gallen, CH;
Abstract
The present invention comprises a fish guidance rack () for use in a fish guidance system in a watercourse (W) at a run-of-river hydropower plant or a water intake. The rack comprises a series of vertical bars () mounted on a rack frame () along a longitudinal axis (L) of the rack between a first end () of the rack and a second end () of the rack. The rack comprises bars with a hydrodynamic curved form, and a generally increasing inter-bar spacing (sb) in the downstream direction.