Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7887258 | Intake apparatus for dams A dam bypass apparatus including a floating inlet and a flexible conduit having a discharge opening adjacent to a dam water intake. The inlet can be laterally offset from the discharge opening, and can include screens to exclude debris from the conduit. ... | 02/15/2011 |
| 7708494 | Water diversion system and method having hydraulic chute, screen assembly and wedge wire screen A water diversion system includes a hydraulic chute and a chute screen assembly in the hydraulic chute having a wedge wire screen. The water diversion system also includes at least one collection chamber located below the screen configured to collect filtered divers... | 05/04/2010 |
| 7670083 | Inflatable weir fish passage systems and methods A fish passage system is provided that includes a first weir and a second weir upstream of the first weir. The first and second weirs are each moveable between a deflated condition and an inflated condition. The fish passage system further includes a controller to m... | 03/02/2010 |
| 7594779 | Bottom fed screened water diversion apparatus A fish-safe screened water diversion apparatus having an input and diverted and non-diverted outputs. Water or other fluid is directed substantially downward under the screen at the input and preferably flows under the screen in a substantially unimpeded manner to t... | 09/29/2009 |
| 7410324 | Bio-passage for disrupting laminar flow An apparatus or biopassage (A) includes a housing (20) dimensioned for receipt in a waterway during an increased flow event. The housing has a passage: (26) that provides a region of reduced flow generally irrespective of the flow external to the passa... | 08/12/2008 |
| 7300572 | 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 ... | 11/27/2007 |
| 7249915 | High-flow sediment-free fish ladder A fishladder (10) for use along a waterway includes a channel having a bottom wall (16), a pair of opposing, up-wardly extending sidewalls (18a, b) and opposing open ends. A series of projections (20) are disposed along the channel... | 07/31/2007 |
| 7201114 | Apparatus for guiding aquatic crustaceans by utilizing their biological tendency responding to bright and dark contrast Apparatuses for directing the displacement of aquatic crustaceans are provided and are particularly used to carry out the methods for attracting the motion of aquatic crustaceans after feeding by utilizing their biological tendency responding to a bright and dark co... | 04/10/2007 |
| 7192217 | Baffle apparatus A baffle apparatus and method for directing fluid flow to reduce damage to an energy dissipating basin that includes an inlet, an outlet, a floor, a sidewall that extends upward from an edge of the floor, and an opposing sidewall that extends upward from an opposing... | 03/20/2007 |
| 7174850 | Multi-layered aquaculture system By directing the none-molting crustaceans to move into a predetermined area in a culture tank, the present invention discloses a multi-layered aquaculture system with shallow-water containers which is based upon the utilization of the methods and apparatus to elimin... | 02/13/2007 |
| 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 |
| 7000567 | Method for guiding aquatic crustaceans by utilizing their biological tendency responding to bright and dark contrast A method for directing the displacement of aquatic crustaceans after feeding by utilizing their biological tendency responding to a bright and dark contrast is provided. This method comprises steps to generate the visual effect of this bright and dark contrast at a ... | 02/21/2006 |
| 6988853 | Muted tidal regulator A muted tidal regulator adapted to be interposed between a tidal body of water and an inland area at least partially isolated from the tidal body of water by a physical barrier. The assembly includes a tide gate that is made up of a conduit connecting said tidal bod... | 01/24/2006 |
| 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 |
| 6957627 | Water tray drinker for pigs A water tray drinker for pigs comprising a tray wherein the water compartment thereof is divided into water compartment portions by divider walls of different heights. An adjustable valve water supply mechanism is positioned above the tray for automatically filling ... | 10/25/2005 |
| 6955759 | Porous dike intake structure for fish diversion A structure for diverting fish away from water intakes comprises a porous dike having a bottom portion, a central portion, and a top portion, the top portion preferably being submerged a short distance below the surface, and the central portion having flow passages.... | 10/18/2005 |
| 6942423 | Migratory fish channel associated with one or more dams in a river A bypass channel (C) for fish extends along line one side of a river, for the full length of a section of the river in which reservoirs (22, 24, 26, 28) have been created by dams (14, 16, 18, 20). The channel (C) follows the grade of the natural river.... | 09/13/2005 |
| 6932026 | Aquatic farm An aquatic farm has at least two segregated pools and an inter-pool transporter. The at least two segregated pools are stacked. Adjacent segregated pools are attached to each other with a vertical separation, and upper segregated pools are smaller than adjacent lowe... | 08/23/2005 |
| 6905287 | Water containment structure with fish ladder A fish ladder for incorporation between ends of a water structure that includes at least a pair of separate sleeves that are each formed from a puncture resistant flexible material, contain a volume of water and may have a closed end or ends for resting on edge port... | 06/14/2005 |
| 6793440 | Natural cue surface bypass collector A system and method for guiding fish that migrate is provided. A preferred embodiment is affixed to a dam having intakes that: a) generate hydroelectric power and b) serve as a natural hydraulic cue for fish that, once attracted to the intake, may be injured or kill... | 09/21/2004 |
| 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 |
| 6729800 | Flow velocity enhancement system A method for enhancing or generating a water flow current by the generation of a velocity head differential, to guide fish, including: a venturi eductor to induce higher water pressures; a pump, piping or other motive water source; an adjustable frame to mount the v... | 05/04/2004 |
| 6726404 | Device and method for simulating natural cues so that waterborne fauna avoid contacting manmade barriers Provided are a device and associated method for simulating natural hydraulic cues received instinctively by waterborne fauna. A preferred embodiment is suitable for modifying existing manmade barriers such as fish diversion screens used at dams. The simulated cues m... | 04/27/2004 |
| 6715959 | Fish ladder for passing dams The present invention is a safe and effective fish ladder for assisting fish in overcoming dams, especially in the upstream direction. The ladder comprises a series of relatively vertical open pools, which decrease in size in the upstream direction, the pools being ... | 04/06/2004 |
| 6712555 | Flow inducer fish guide and method of using same An apparatus for generating a current to guide fish includes a propeller; a device to rotate the propeller; and a frame to mount the propeller and the device to rotate the propeller. Fish may be guided from an intake area to a fish bypass by generating a current lea... | 03/30/2004 |
| 6682651 | Barrel type fish and/or particulate screen device A barrel type fish and/or particulate screen includes mesh stretched over a supporting cylindrical shell having closed ends. The closed interior opens to a fluid withdrawal conduit, which is connected to an outlet. An inner, substantially conical withdraw... | 01/27/2004 |
| 6652189 | Method for a migratory fish bypass channel with natural features A method and system allowing fish to migrate upstream and downstream, bypassing dams, obstructions, either man-made or natural, safely, freely and in a natural manner. The system consists of a meandering "nature-like" channel constructed of pneumatically ... | 11/25/2003 |
| 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 |
| 6467998 | Self-regulating weirs and fishways A self-regulating tilting weir comprises a tiltable weir gate over which the water flows, the weir gate being hinged at its lower edge (3) to the base of a support frame (1) and counterbalanced by floats (4) located upstream of the weir gate so that the l... | 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 |
| 6155746 | Fish ladder and its construction The invention relates to a fish ladder (1) to by-pass a vertical descent (SH) in a flowing watercourse (31F) or a dam (31T), with an upstream water inlet (2) and a downstream water outlet (3) and with basins (4) arranged between them substantially in the ... | 12/05/2000 |
| 6102619 | Flow inducer fish guide and method of using same An apparatus for generating a current to guide fish includes a propeller; a device to rotate the propeller; and a frame to mount the propeller and the device to rotate the propeller. Fish may be guided from an intake area to a fish bypass by generating a ... | 08/15/2000 |
| 5762449 | River or lake bottom apparatus for scavenger fish control A river bottom fish control apparatus, which includes a mesh grid netting for providing a substrate for plants and other benthic organism growth and for decreasing turbidity in a body of water. The mesh grid netting includes a flexible plastic having mesh... | 06/09/1998 |
| 5673449 | Flow compensation device for bridge pillars There is disclosed a bridge or like pillar (1) erected in a moving body of water in which the water may periodically flow in strata in one as well as the other of two opposite main flow directions. The pillar is provided with a flow compensation device in... | 10/07/1997 |
| 5632572 | Guidance apparatus and method for anadromous fish Migrating anadromous fish, and particularly salmonoid smolts, are guided in or by elongate faster moving channels defined in a body of slower moving water. Ring-like support frames are supported by floats and anchors in a water body at spaced distances al... | 05/27/1997 |
