Class 405/83 - Closed channel

Subclass of Class 405 - Hydraulic and earth engineering
Definition: Method or apparatus wherein the fishway is in the form of
No. of patents: 25
Last issue date: 09/06/2011

Number	Title	Issue Date
8011854	Fish passage apparatus with hydroelectric power generator and method An improved fish passage apparatus is combined with hydroelectric power generation to facilitate migration of fish between water bodies of different heights with minimal injury or trauma to fish. It may also be optimized for power generation when fish are not moving...	09/06/2011
7048850	Water screen A traveling water screen comprising an endless foraminous belt with flights. The foraminous belt forms a water screen extending from a lower end in a flowing stream to an upper end above the surface of the stream. The stream flows through openings in the foraminous ...	05/23/2006
6964541	Fish safe screened water diversion apparatus An apparatus for separating animated objects such as fish or other objects between a non-diverted and diverted fluid stream. Embodiments may include a screen or similar selective pass through device that is arranged in a manner that is generally horizontal (more hor...	11/15/2005
6832578	Bio-hydraulic turbine testing system A bio-hydraulic testing system is provided for simulating the effect on fish of at least one hydraulic system component. A water flow introduction device introduces a flow of water into the testing system, and a fish introduction means introduces a plurality of fish...	12/21/2004
6739802	Fish test circuit and method for evaluation of waterway barrier fish bypass systems A fish test circuit for the evaluation of waterway barrier bypass systems with a conduit having at least one bypass system test station, water flow within the conduit, fish introduced into the conduit, and measurement of the effectiveness of the bypass system under ...	05/25/2004
6588370	Labyrinth weir and pool fishway A fishway is disclosed for providing a pathway around obstacles for fish. The fishway is comprised of a pair of spaced fishway walls and a set of weirs located between the fishway walls for dissipating flow energy of water flowing through the fishway. The...	07/08/2003
6524028	Fish safe screened water diversion apparatus An apparatus for separating animated objects such as fish or other objects between a non-diverted and diverted fluid stream. Embodiments may include a screen or similar selective pass through device that is arranged in a manner that is generally horizonta...	02/25/2003
6467997	System and method for diverting fish around a structure A fish diversion apparatus for a water intake of a dam includes a frame extending between a top end oriented towards the water surface and a bottom end oriented below the water surface. The frame supports a number of bar screen panels below the water surf...	10/22/2002
6394699	Apparatus for reduced flow fish passage The present invention provides an apparatus for reduced flow rate fish passage around dams or other obstructions, having a passage unit with a tubular passageway, an upstream valve, a downstream valve and an optional main valve, a fabricated base, and an ...	05/28/2002
6347908	Fish guidance system A series of disturbed (or rippled) air-water interface regions contiguously arranged guide anadromous fish in a selected direction. Artificial or natural light, diffusely refracted by passage through the disturbed regions, establishes an aura-dominated pa...	02/19/2002
6325570	Fishway system with turbine A lock-type fishway comprises a first part having an opening to lower water for discharging water therethrough to lure fishes to the first part and a second part having an opening to upper water. A first pipe between the first and second parts is to be fi...	12/04/2001
6273639	Method and apparatus for facilitating migration of fish past dams and other barriers in waterways Method and apparatus for fish migration past dams and other water barriers. A preferred embodiment 100 comprises a conduit 101 passing from downstream side 22 of water barrier 10 to upstream side 21 of the barrier, flow-controlling valves 102 and 105 disp...	08/14/2001
5947640	Portable water conveyance assembly A portable water conveyance device for diverting the flow of water and particularly, a stream, includes a collapsible tube for receiving the water and conveying the water downstream to a discharge site. An inlet frame is coupled to the inlet end of the tu...	09/07/1999
5660499	Two-way fish siphon overpass A method and apparatus for transporting migratory fish over dams. Fish are transported over dam in downstream migration to the sea and upstream migration to spawning beds. The method includes transporting threatened or endangered species from spawning bed...	08/26/1997
5263833	Fish guiding assembly and method utilizing same A fish guiding assembly for use adjacent to dams and the like to channel fish into a safe passage includes an elongated buoyant frame including upper and lower elongated horizontally extending frame members, and a multiplicity of vertically extending louv...	11/23/1993
5253954	Alternate intake pipe system to eliminate zebra mussel colonization A method and apparatus for eliminating zebra mussel colonizations from fresh water intake pipes for facilities, such as power plants and water treatment plants, are disclosed. One or more small diameter alternate intake pipes are disposed within a main in...	10/19/1993
5161913	Method and apparatus for migratory fish passage to the sea A method and apparatus for passing migratory fish by dams to the sea. The method includes the creation of a water flow within a main conduit and in one or more collection conduits flowing into the main conduit from spawning areas; lighting the interior of...	11/10/1992
4929122	Fish protection system for dams A fish protection system for dams comprises a series of modular units which interconnect by male and female fittings on each side of the modular unit. Each modular unit comprises a casing, an inner box and an outer box for anchoring the unit to a stream b...	05/29/1990
4740105	Fish diversion system A diversion system for use in a watercourse for routing fish away from the intake, for example, of a hydroelectric plant. The system includes a plurality of upright screens arranged in zigzag fashion crosswise of the watercourse to provide a plurality of ...	04/26/1988
4629361	Integrated tubal by-pass fishway An integrated tubal by-pass fishway system for use at dams, obstructions and the like, which enable fish to swim freely and safely upstream or downstream on a near natural level with the original stream bed, by-passing the dam or obstruction by means of a...	12/16/1986
4526494	Penstock fish diversion system A fish diversion system for a penstock housing a hydroelectric turbine employs large area screens to shunt fish to a bypass conduit above the turbine. The screens are disposed generally lengthwise of the penstock and inclined upwardly at a shallow angle t...	07/02/1985
4488835	Penstock fish diversion system A fish diversion system for a penstock housing a hydroelectric turbine employs large area screens to shunt fish to a bypass conduit above the turbine. The screens are disposed generally lengthwise of the penstock and the upstream screen is inclined upward...	12/18/1984
4437431	Method and apparatus for diversion of downstream migrating anadromous fish This is a method, and apparatus for performing the method, by which artificial stream conditions are generated within the forebay of dams used for hydroelectric facilities. The method includes the introduction into the reservoir at the appropriate depth o...	03/20/1984
3938340	Fish holding chamber A fish holding chamber for use with a water intake system which includes a watercourse through which water is drawn from a body of water containing fish and debris and a fish diversion or debris removal structure mounted across the watercourse, the fish h...	02/17/1976

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Class 405/83 - Closed channel