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Class Information
Number: 405/82
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Fishway > Elevator
Description: Method or apparatus wherein the fish are mechanically raised or lowered to carry them around the obstruction.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7300572 |
Water screen |
Nov. 27, 2007 |
| 7249915 |
High-flow sediment-free fish ladder |
Jul. 31, 2007 |
| 7048850 |
Water screen |
May. 23, 2006 |
| 6905287 |
Water containment structure with fish ladder |
Jun. 14, 2005 |
| 6715959 |
Fish ladder for passing dams |
Apr. 6, 2004 |
| 6347908 |
Fish guidance system |
Feb. 19, 2002 |
| 6187184 |
Traveling water screen having improved basket |
Feb. 13, 2001 |
| 5540521 |
Inflatable cushion for culturing and movement of aquatic organisms |
Jul. 30, 1996 |
| 4904114 |
Fish conveying apparatus |
Feb. 27, 1990 |
| 4431340 |
Fish elevator and method of elevating fish |
Feb. 14, 1984 |
| 4415462 |
Self-cleaning screen |
Nov. 15, 1983 |
| 4260286 |
Integrated fish migration system |
Apr. 7, 1981 |
| 4199453 |
Apparatus for protecting aquatic life passing through a water filter |
Apr. 22, 1980 |
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