Fishway
US3962876A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1974 |
| Grant date | Jun 15, 1976 |
| Priority date | — |
| Expiry date | Jul 15, 1994 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B8/085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A fishway comprising a channel having spaced-apart side walls and an interconnecting bottom wall for conducting a flow of water therethrough, a plurality of longitudinally spaced vortex generators formed on each channel side wall for providing reversing vortices in the flow stream of water along the channel whereby alternately reversing cross-stream water flows and upstream water flows are created to assist fish using the fishway in upstream travel. The vortex generators are provided by uniformly spaced baffles extending alternately from the channel side walls. The channel can be straight or curved in the form, for example, of a helix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.