Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 405/81
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Fishway
Description: Method or apparatus to enable fish to pass an obstruction in a stream.










Sub-classes under this class:

Class Number Class Name Patents
405/83 Closed channel 28
405/82 Elevator 15


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8641892 Barrel-type fish/particle screen with adjustable flow distribution and debris removal Feb. 4, 2014
8262317 Juvenile fish bypass system Sep. 11, 2012
8011854 Fish passage apparatus with hydroelectric power generator and method Sep. 6, 2011
7887258 Intake apparatus for dams Feb. 15, 2011
7708494 Water diversion system and method having hydraulic chute, screen assembly and wedge wire screen May. 4, 2010
7670083 Inflatable weir fish passage systems and methods Mar. 2, 2010
7594779 Bottom fed screened water diversion apparatus Sep. 29, 2009
7410324 Bio-passage for disrupting laminar flow Aug. 12, 2008
6988853 Muted tidal regulator Jan. 24, 2006
6964541 Fish safe screened water diversion apparatus Nov. 15, 2005
6955759 Porous dike intake structure for fish diversion Oct. 18, 2005
6942423 Migratory fish channel associated with one or more dams in a river Sep. 13, 2005
6905287 Water containment structure with fish ladder Jun. 14, 2005
6793440 Natural cue surface bypass collector Sep. 21, 2004
6739802 Fish test circuit and method for evaluation of waterway barrier fish bypass systems May. 25, 2004
6729800 Flow velocity enhancement system May. 4, 2004
6726404 Device and method for simulating natural cues so that waterborne fauna avoid contacting manmade barriers Apr. 27, 2004
6715959 Fish ladder for passing dams Apr. 6, 2004
6712555 Flow inducer fish guide and method of using same Mar. 30, 2004
6682651 Barrel type fish and/or particulate screen device Jan. 27, 2004
6652189 Method for a migratory fish bypass channel with natural features Nov. 25, 2003
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
6467998 Self-regulating weirs and fishways 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
6155746 Fish ladder and its construction Dec. 5, 2000
6102619 Flow inducer fish guide and method of using same Aug. 15, 2000
5762449 River or lake bottom apparatus for scavenger fish control Jun. 9, 1998
5673449 Flow compensation device for bridge pillars Oct. 7, 1997
5632572 Guidance apparatus and method for anadromous fish May. 27, 1997
5558462 Flat plate fish screen system Sep. 24, 1996
5433554 Salt concentration gradient fishway Jul. 18, 1995
5385428 Water intake fish diversion apparatus Jan. 31, 1995
5263833 Fish guiding assembly and method utilizing same Nov. 23, 1993
5161913 Method and apparatus for migratory fish passage to the sea Nov. 10, 1992
5139364 Automatic swing fishway apparatus Aug. 18, 1992
5078542 Apparatus to prevent the entrance of aquatic species into the intake watercourse Jan. 7, 1992
4929122 Fish protection system for dams May. 29, 1990
4740105 Fish diversion system Apr. 26, 1988
4657434 River control structures Apr. 14, 1987
4629361 Integrated tubal by-pass fishway Dec. 16, 1986
4526494 Penstock fish diversion system Jul. 2, 1985
4481904 Fish conservation device Nov. 13, 1984
4437431 Method and apparatus for diversion of downstream migrating anadromous fish Mar. 20, 1984
4260286 Integrated fish migration system Apr. 7, 1981
4176984 Fish holding pan on traveling water screen and method of flushing same Dec. 4, 1979

1 2










 
 
  Recently Added Patents
Mobile device case with storage compartment
Display screen with graphical user interface
Electronic flash device
Computer device with digitizer calibration system and method
Method of making a CIG target by spray forming
Determining phase-specific parameters of a physiological variable
Opioid-ketamine and norketamine codrug combinations for pain management
  Randomly Featured Patents
Position measuring apparatus
Method and system for frequency up-conversion
Arc voltage distribution skewness as an indicator of electrode gap during vacuum arc remelting
Method for classifying memory cells in an integrated circuit
Transport system
Tape under frame for conventional-type IC package assembly
Tracking telescoping outrigger
Capillary electrophoresis
Selective file erasure using metadata modifications
Spin valve sensor having an antiparallel (AP) self-pinned layer structure comprising cobalt for high magnetostriction