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Class Information
Number: 405/83
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Fishway > Closed channel
Description: Method or apparatus wherein the fishway is in the form of a pipe or other enclosed waterway.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6964541 |
Fish safe screened water diversion apparatus |
Nov. 15, 2005 |
| 6832578 |
Bio-hydraulic turbine testing system |
Dec. 21, 2004 |
| 6739802 |
Fish test circuit and method for evaluation of waterway barrier fish bypass systems |
May. 25, 2004 |
| 6588370 |
Labyrinth weir and pool fishway |
Jul. 8, 2003 |
| 6524028 |
Fish safe screened water diversion apparatus |
Feb. 25, 2003 |
| 6467997 |
System and method for diverting fish around a structure |
Oct. 22, 2002 |
| 6394699 |
Apparatus for reduced flow fish passage |
May. 28, 2002 |
| 6347908 |
Fish guidance system |
Feb. 19, 2002 |
| 6325570 |
Fishway system with turbine |
Dec. 4, 2001 |
| 6273639 |
Method and apparatus for facilitating migration of fish past dams and other barriers in waterways |
Aug. 14, 2001 |
| 5947640 |
Portable water conveyance assembly |
Sep. 7, 1999 |
| 5660499 |
Two-way fish siphon overpass |
Aug. 26, 1997 |
| 5263833 |
Fish guiding assembly and method utilizing same |
Nov. 23, 1993 |
| 5253954 |
Alternate intake pipe system to eliminate zebra mussel colonization |
Oct. 19, 1993 |
| 5161913 |
Method and apparatus for migratory fish passage to the sea |
Nov. 10, 1992 |
| 4929122 |
Fish protection system for dams |
May. 29, 1990 |
| 4740105 |
Fish diversion system |
Apr. 26, 1988 |
| 4629361 |
Integrated tubal by-pass fishway |
Dec. 16, 1986 |
| 4526494 |
Penstock fish diversion system |
Jul. 2, 1985 |
| 4488835 |
Penstock fish diversion system |
Dec. 18, 1984 |
| 4437431 |
Method and apparatus for diversion of downstream migrating anadromous fish |
Mar. 20, 1984 |
| 3938340 |
Fish holding chamber |
Feb. 17, 1976 |
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