| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 405087000 | Water gate or adjustable weir | 46 |
| 20080260465 | FILER FOR THE PURIFICATION OF CONTAMINATED WATER - In one embodiment of the invention, a filter assembly for filtering a fluid flowing from a first container into a second container comprises a filter panel disposed in a partition between the first and second containers. The filter panel may include a bristle filter and a frame that holds the bristle filter, and the bristle filter may include a plurality of bristles attached at their proximate ends in an adjacent configuration along the length of a base. The filter panel may be disposed such that the upper ends of the bristles are above a top surface of the fluid in the first container and the lower ends of the bristles are below the top surface of the fluid in the first container. | 10-23-2008 |
| 20090154998 | Storm water diversion device - The invention is a diversionary device for storm water runoff that will divert water from the center of the street to the sides of the street where filters are in place by others. The diversion device for diverting storm water consists of a length member having a length and a width, the length extending a selected distance, the length having formed a multiplicity of baffles along the selected distance, the width having a selected profile, the profile being selected to divert storm water, the length member having formed on at least one its ends at least one interlocking means. | 06-18-2009 |
| 20090180835 | Water Control Apparatus - The invention relates to improved water control gates and related inflatable actuators, and associated sealing, manufacture and operation apparatus and methods. Advancements in technologies related to air fitting design, inflated bladder stress relief, inflatable bladder strength enhancement, water gate related slide friction mitigation, abutment and other impounded water seals, gate panel fabrication, traffic accommodating water impoundment structures, and water gate panel system operation efficiency, as well as nappe aeration, hinges, and bladder manufacture technology are disclosed herein. | 07-16-2009 |
| 20100086358 | Multi-Purpose Vent - Disclosed is a foundation vent that provides air ventilation and flood relief for an enclosed area. A screen is included to prevent items such as insects, small animals, debris, and organic matter, including buoyant materials due to a flood, from entering the enclosed area. A removable screen and exterior screen stop allow the owner to easily inspect, maintain, clean, and repair the foundation vent. The foundation vent is also designed as a non-engineered, non-mechanical opening, which allows the air and flood water ratings of the foundation vent to be based upon the actual net clear open area. Such design eliminates the need for a vapor barrier and/or specialized structural engineering of the foundation. The dual operation of the foundation vent as a flood grate also allows rising flood water to penetrate and recede from the enclosed area, which equalizes the hydrostatic pressure on either side of the foundation wall. | 04-08-2010 |
| 20100209192 | ADJUSTABLE WEIR FOR HYDROELECTRIC DAM INSTALLATIONS - A system for controllably adjusting spent water levels in the tailrace pool area of a hydroelectric power-generating dam installed into a waterway. The system comprises: (a) a controllably adjustable weir device installed into a downstream portion of the waterway adjacent a distal end of the tailrace pool area. The controllably adjustable weir device is configured for controllably impeding egress of spent water from the tailrace pool area, (b) an apparatus provided with operative components configured for manipulating the controllably adjustable weir device to controllably increase and decrease the impediment therewith of spent water egress from the tailrace pool area. The operative components are serviceable from above the spent water, and (c) a control device configured for communicating and cooperating with the apparatus for manipulating the controllably adjustable weir therewith. The controllably adjustable weir device may be optionally installed into an excavation provided downstream adjacent to the tailrace pool area. | 08-19-2010 |
| 20100284745 | DRAINAGE MANAGEMENT SYSTEMS AND METHODS - A flow limiting inlet structure is designed to collect water or other fluids in a pool above grade, and to provide improved capture of sediments and surface pollutants such as oils and greases in the pool, while regulating the flow of water or other fluids during discharge into an outlet pipe. In a conventional storm water detention basin a vertical cylindrical discharge structure can be used to regulate the basin water depth and discharge flow rate of storm water out of the detention basin, in conjunction with the use of a specially designed baffle system that prevents the release of any greases or oils floating on the water surface while capturing any floating trash or debris. | 11-11-2010 |
| 20110110722 | SELF CLOSING FLOOD BARRIER AND METHOD FOR PROTECTING A HINTERLAND USING SAME - The flood barrier includes a chamber with a first side wall and a second side wall, a water inlet for letting in water, a single support block arranged on the first side wall, and a dam wall up and down movably arranged in the chamber. The dam wall forms a retaining wall for restraining water flow, a forcing element for causing an upward movement of the dam wall, and a blocking element for providing a blockade for limiting the upward movement, the blocking element. The support block has an inclined surface against which the inclined surface of the blocking element acts in a closed state of the flood barrier. Due to the orientation of the angled wall of the support block, the blocking element is forced to move sideward and thereby a lateral force is created forcing the dam wall to one side of the chamber. | 05-12-2011 |
| 20110116871 | Water Control Apparatus - The invention relates to improved water control gates and related inflatable actuators, and associated sealing, manufacture and operation apparatus and methods. Advancements in technologies related to air fitting design, inflated bladder stress relief, inflatable bladder strength enhancement, water gate related slide friction mitigation, abutment and other impounded water seals, gate panel fabrication, traffic accommodating water impoundment structures, and water gate panel system operation efficiency, as well as nappe aeration, hinges, and bladder manufacture technology are disclosed herein. | 05-19-2011 |
| 20120243941 | Synthetic Weir Board - A synthetic weir board riser system is described that controls the water elevation on the front and rear sides of the structure using synthetic weir boards as the barrier. Weir boards are added and removed from a metallic or composite riser system to control the level of water flowing into a larger body. Synthetic weir boards composed of plastic or composite have an increased life span. Geometrically, the synthetic boards provide a more efficient use of material in terms of weight. A reduced radius per each external corner prevents the increased pressure to the rear of the riser from separating the synthetic boards thereby increasing seepage. | 09-27-2012 |
| 20130045051 | Undershot Sluice Gate - The invention provides an undershot sluice gate ( | 02-21-2013 |
| 20130156503 | FLOOD PROTECTION GATE FOR VEHICULAR & PEDESTRIAN TRAFFIC - The invention relates to a roadway flood protection and traffic barrier which provides a smooth upper surface for vehicles, pedestrians, etc. and is thin enough to be mounted to the surface of an existing roadway or parking garage ramp, for example. A hinge mechanism is disclosed which facilitates the provision of a smooth roadway surface as well as a tight seal. A locking strut is provided that keeps the gate panels raised even in case of air pressure loss and which is remotely controllable. | 06-20-2013 |
| 20130209173 | FLOODGATE - A floodgate is disclosed. The floodgate comprises a panel configured to be movable between an opened position and a closed position wherein in the opened position, the panel forms a barrier against flood water; and at least one gas strut configured to move the panel from the closed position to the opened position. | 08-15-2013 |
| 20130322968 | CANAL WATER REFILL SYSTEM - A system for recirculating lock water includes a sealable storage area located near a lock for receiving water from the lock. The storage area is large enough to house the lock water with excess space between a maximum water level and the ceiling. The system also includes at least one compressor connected to the storage area to create a vacuum to withdraw the water from the lock into the storage area. | 12-05-2013 |
| 20140050529 | WATER-GATE - A water-gate is intended to withstand pressure exerted by a liquid. The water-gate includes an essentially flat shell plate and a plurality of thin cores extending along the length of the shell plate, the thin cores being substantially parallel to one another. Each core is solidly connected to the shell plate and pierced with multiple disjoint holes. According to the disclosure, the water-gate comprises at least one stiffener formed by assembling multiple elements that are aligned along a longitudinal axis of the stiffener and that each extend between the cores without passing through the cores. Each element may be solidly connected to a face of at least one core around one of the holes. | 02-20-2014 |
| 20160141055 | PIT GATE, PIT EQUIPMENT, NUCLEAR POWER FACILITY, AND INSTALLATION METHOD OF PIT GATE - A pit gate | 05-19-2016 |
| 405092000 | Condition responsive | 21 |
| 20090148236 | FLOOD AND COMBUSTION AIR VENT - A flood and combustion air vent includes a louvered panel supporting a rodent screen for placement across an opening in a wall or door of an enclosed space in a building. The apertures in the louvered panel and rodent screen are sized to accommodate ingress and egress of flood water at a rate of water flow sufficient to prevent destructive hydrostatic forces from acting upon either the exterior or interior surfaces of the wall. Additionally, the rodent screen will prevent intrusion of rodents, vermin and reptiles into the enclosed space. | 06-11-2009 |
| 20120034032 | Self-Actuating Flood Guard - A self-actuating flood guard for a construction holds a buoyant gate at an elevation spaced from ground between flanking spaced vertical boundary walls adapted for connection to the construction. The gate is pivotable on pivotation members about a horizontal axis normal to the boundary walls for buoyant rotation upwardly between the boundary walls on rise of water above the elevation. Optionally, flexible lip seal gaskets along the sides of the gate sealingly wipe the boundary walls, and a flexible strip gasket across the pivotation members along the base of the gate prevents passage of water between the base of the gate and the construction. A restraint acts on the gate to prevent the gate from rotating about the axis more than a predetermined extent when the gate is pivoted upwardly above said elevation. | 02-09-2012 |
| 20120148345 | Undershot Sluice Gate - The invention provides an undershot sluice gate ( | 06-14-2012 |
| 20120148346 | SELF-DEPLOYING FLOODWALL - A self-deploying apparatus that is constructed onshore as a permanent structure that can protect against intruding seawater and floodwaters without creating a physical and visual obstruction to and from the waterfront during normal times. | 06-14-2012 |
| 20140169883 | Self-Actuating Shoreline Flood Guard - A series of self-actuating flood guard units each including a buoyant gate flanked by a pair of the boundary walls and pivotable about a horizontal axis transverse to the flanking boundary walls runs along a shoreline of an adjacent body of water The axis is located at a selected elevation above ground inundated by the body water and is selected to cause the gate to buoyantly rotate upwardly between the boundary walls on rise of water above the selected elevation. The extent of rotation is limited by a restraint acting on the gate. The series of units may be continuous or contiguous and act as a whole to prevent onshore flooding from a rise of the body of water at the shoreline. | 06-19-2014 |
| 20150330047 | METHOD FOR CONTROLLING A WATER SLUICE GATE DRIVE FOR A WATER SLUICE GATE HAVING AN ELECTRIC MACHINE, SERVICE CONNECTION, WATER SLUICE GATE DRIVE AND HYDROELECTRIC POWER PLANT - The invention relates to a method for controlling a water sluice gate drive for a water sluice gate, in particular for a roller sluice gate, preferably in a hydroelectric power plant, wherein the drive has an electric machine, in particular has an asynchronous machine, in particular an asynchronous motor/generator. According to the invention, it is provided that the electric machine, in particular an asynchronous machine, has a fan brake, wherein the method comprises the steps of: disengagement of the fan brake in the case that an insufficient power supply is indicated, self-actuated operation of the electric machine, in particular an asynchronous machine, wherein the electric machine, in particular an asynchronous machine, is operated in generative island operation, in which a rotating field is generated in a self-actuating manner. | 11-19-2015 |
| 20170234001 | FLOOD VENT HAVING A PANEL | 08-17-2017 |
| 405093000 | To weight of liquid separated from a main body | 2 |
| 20110229268 | SECURED FUSIBLE - The disclosure concerns a fusible shutter for a water structure such as a river sill, or a spillway on a dam or on a protective dyke, including a solid element disposed on the top of the structure and held on top by gravity, forming a watertight or substantially watertight wall, installed on the water structure and being able to retract so as to allow water to pass without obstruction when the level of the reservoir or watercourse reaches a predefined level, a chamber being formed at the base of the solid element between the latter and the surface that supports it, pressurisation means enabling the chamber to be filled with water in order to create under the solid element a thrust directed upwards when the water in the reservoir or watercourse reaches the predefined level. The disclosure consists in these pressurisation means including a water inlet at a feed structure provided with two compartments delimited by an internal vertical wall, the two compartments being in communication with each other through at least one passage provided at the top part of the feed structure, one of the compartments having one or more openings in its bottom part allowing entry of water from the reservoir or watercourse into the feed structure while the other compartment is in communication with the chamber under the solid element. Applications to water structures such as a river sill, or a spillway on a dam or on a protective dyke. | 09-22-2011 |
| 20130216311 | Flood flaps vent for sealed crawlspace - A flood flaps vent for sealing a building crawlspace includes: (a) a vent box portion including open opposite front and rear ends on either end of a vent passageway, the vent box including a top box portion with at least one flap slot adjacent a rear end portion of the vent box, and an opposite bottom box portion; (b) at least one flexible flood flap extending across the open rear end portion, with its upper edge seated in the flap slot, other side flap edges of the flood flap being unattached; and (c) a grate portion over the open front end portion of the vent box; the flood flap occluding the rear end portion of the vent box when it is in an at rest, home position. This simplified abstract is not intended to limit, and should not be interpreted as limiting, the scope of the claims. | 08-22-2013 |
| 405094000 | To pressure on pivoted water gate | 2 |
| 20090208289 | Half and half gate - The present invention comprises a sewer water gate to be located at the opening to a subsurface catch basin of a storm drain system that will exclude trash and debris from the system while still permitting a flow of water, but which will partially open to allow full access for water and entrained material when the rate of flow is sufficiently high while still obstructing the flow of heavier materials. | 08-20-2009 |
| 20100310314 | SELF-REGULATING TIDE GATE - A self-regulating tide gate system for a headwall placed over a channel, stream or river exposed to tides or floods with at least one gate opening formed therein. Disposed on the downstream side of the headwall on opposite sides of the gate opening is at least one pivotally attached door panel designed to swing downstream to allow flow in the downstream direction. When water levels are such that flow in the upstream direction is possible, the door panel is held open thereby allowing some backflow. When the backflow generates a sufficient force, the door panel closes. Attached to each door panel is a guide line. Attached to the guide lines is at least one elastic cord or strap designed to apply a variable tension force to the guide lines to hold the door panels in an open position and progressively resist closure of the door panels when the draft force generated by the upstream flow of water matches or exceeds the tension in the guide lines. The opposite end of the elastic strap may be connected to an adjustable winch that allows the operator to selectively adjust the resting length and tension exerted by the elastic strap thereby causing the gate to open earlier or later, or open and close completely or partially. | 12-09-2010 |
| 405096000 | Float | 10 |
| 20090185864 | Automatic flooding protection for underground ventilation ducts - Embodiments are described for preventing downward flow of substantial surface water into an underground ventilation duct communicating upwardly to a ground surface opening. The embodiments comprise a support having a top opening and an opening in a lower portion above a floor. The opening in the lower portion is for venting communication with a proximate portion of the ventilation duct. The support supports at least one seat and paired buoyant gate set. The seat is mounted perpendicularly relative to the gate and a portion of a passageway under the seat for fluidly communicating beyond such portion to the top opening of the support and to the proximate portion of the ventilation duct. The buoyant gate is positioned lower than the seat and the passageway, is of sufficient size to block the passageway, and is responsive to water rising in the support by floatingly pivoting upwardly until engaging the seat, thereby blocking the passageway. In an embodiment, the seat of at least one set is mounted under the top opening spaced from one of the opposing sides a horizontal distance nominally equal to a fraction applied to a length for the particular opening, the fraction having the numerator 1 and a denominator which is the sum of 1 plus the number of seat and gate sets, and the buoyant gate has a seat engagement height nominally equal to the same fraction applied to the same opening length. | 07-23-2009 |
| 20090324334 | Prevention of flood from a water channel - Preventing a flood by lowering the water level of the water channel in the flood prone zone by methods consisting of pushing large quantities of water downstream and partially blocking the inflow of water at various strategic locations. | 12-31-2009 |
| 20100284746 | FLOW CONTROL SYSTEM FOR A DETENTION POND - An application for a flow control system includes a movable riser in fluid communication and slideably engaged with a stationary riser, the stationary riser being in fluid communication with a drainage system. The movable riser is made buoyant by one or more attached floats such that, when the liquid level around the flow control system increases to a pre-determined level, the movable riser lifts due to the buoyancy of the float(s), thereby maintaining the pre-determined displacement as the water level continues to rise, yielding either a constant flow rate or a variable, predictable flow rate through the drainage system. | 11-11-2010 |
| 20110076100 | FLOW CONTROL SYSTEM FOR A DETENTION POND - An application for a flow control system includes a movable plunger held within a stationary riser, the stationary riser being in fluid communication with a drainage system. The movable plunger is buoyant, assisted by one or more attached floats such that, when the liquid level around the flow control system increases to a pre-determined level, the movable plunger lifts due to the buoyancy, thereby maintaining the pre-determined distance between the surface level and a bottom surface of the movable plunger, keeping the flow rate at an approximately constant level independent of the water level. | 03-31-2011 |
| 20110076101 | FLOW CONTROL SYSTEM FOR A DETENTION POND WITH TAPERED PLUNGER - An application for a flow control system includes a tapered plunger situated within an conduit. The conduit is open to a downstream drainage system. The tapered plunger is buoyant, assisted by one or more floats attached such that, when the water level around the flow control system increases to a predetermined level above a top rim of the conduit, the tapered plunger lifts due to the buoyancy. In such, the flow rate is maintained substantially constant. At the emergency level, alternate drain systems provide increased drainage to reduce the potential of flooding. | 03-31-2011 |
| 20110176869 | MULTI-RATE FLOW CONTROL SYSTEM FOR A DETENTION POND - A flow control system includes a movable riser with multiple flow rate restrictors within a stationary riser that is interfaced to a drainage system. The movable riser is buoyed by float(s) attached to the movable riser. As the fluid level around the flow control system changes, the movable riser tracks the changes, thereby raising and lowering the flow rate restrictors. Since the flow rate restrictors have differing areas in the horizontal plane, an interstitial opening between the outer edge of each flow rate restrictor and the inner perimeter of the stationary riser differs. The flow rate is constant and proportional to the depth of the fluid over the interstitial opening with the least area. The flow rate remains constant until that flow rate restrictor creating the smallest interstitial opening lifts above the upper edge of the stationary riser at which time, the next flow rate restrictor determines the flow rate. | 07-21-2011 |
| 20120294678 | FLOATING BODY CONNECTION-TYPE FLAP GATE - To prevent a door body from shaking significantly when it rises. A floating body flap gate is provided which is disposed on a roadway surface in an opening; and causes a door body to rise to block the opening when water is trying to flow in from the opening by using a water pressure of the water which is trying to flow in and a buoyancy of the door body. The door body is formed with three door body blocks, which are separated in the vertical direction. These door body blocks which are separated in the vertical direction, are connected by rotation mechanisms for rotation at a specified angle within a vertical plane in a direction in which the water is trying to flow in from the opening. The door body is not subject to significant shaking, regardless of the water level at which the water tries to flow in from the opening. | 11-22-2012 |
| 20140044486 | Flow Control System for a Detention Pond - A flow control system of the present invention includes a movable riser slideably engaged with a stationary riser and having a flange. The stationary riser is interfaced to a downstream drainage system. The movable riser is made buoyant by one or more floats such that, as the water level around the flow control system changes, the movable riser follows the changes based upon the buoyancy of the float(s), thereby maintaining the flange at a constant depth. The gap between an upper edge of the flange and the inner perimeter of the stationary riser coupled with an area of the gap defines a flow rate that is constant. Vents couple an inner cavity of the movable riser to air above the fluid, the inner cavity being in communication with the drainage system as well. | 02-13-2014 |
| 20150117952 | FLOOD PROTECTION SYSTEM - Provided is a flood protection system for protecting an area from flooding water, wherein the area includes a trench defined at least along a portion of the boundaries thereof and a at least one depression on the side of the trench facing away from the area to be protected. The system comprising a barrier, configured for being at least partially fitted in the trench; and a float coupled to the barrier and being configured for at least partially is disposed in the depression. The float is configured for rising in response to a rise in the water level inside the depression and about the boundaries of the area. The float is further configured for lifting the barrier out of the trench therewith, thereby blocking the waters from entering the area. | 04-30-2015 |
| 20160010298 | Flood Guard Barrier Lifting System | 01-14-2016 |
| 405098000 | Roller or flexible | 1 |
| 20130279986 | VENT - A flood flaps vent for sealing a building crawlspace includes: (a) a vent box including open opposite front and rear ends forming a vent passageway in the vent box, the vent box including a top box portion and an opposite bottom box portion; (b) flexible flood flap hingably mounted to the vent box near the rear end of the vent box and constructed and arranged to permit the flexible flood flap to flex within the vent passageway to open the passageway; and (c) a grille that may be hingably mounted, the grille having openings therein for air and water flow through the grille, and positioned over the open front end of the vent box; the flood flap occluding the rear end of the vent box when it is in an at rest, home position. This simplified abstract is not intended to limit, and should not be interpreted as limiting, the scope of the claims. | 10-24-2013 |
| 405099000 | Swinging | 5 |
| 20130022402 | LEAF FOR A MITRE GATE AND MITRE GATE INCLUDING SUCH A LEAF - A leaf for a mitre gate is provided. The leaf for a mitre gate may include: a skin plate intended for withstanding a pressure exerted by a liquid; and at least two uprights respectively located on either side of the skin plate, the uprights being secured to the skin plate. The skin plate is in the overall shape of a cylinder portion, the longitudinal axis of the cylinder being essentially parallel to the uprights. Each upright extends overall according to a generatrix of the cylinder. Each upright includes at least one bearing element, arranged to project relative to the skin plate and each bearing element includes a bearing surface, for supporting the bearing element against a lock wall or another leaf of the mitre gate. The bearing surface of each bearing element is aligned with a plane that is tangential to the skin plate. | 01-24-2013 |
| 20130108370 | APPARATUS AND METHOD FOR CONTROLLING RUNOFF | 05-02-2013 |
| 405100000 | About horizontal axis | 3 |
| 20120219360 | MOORING DEVICE FOR FLAP-GATE BREAKWATER - To adjust a mooring hook position in a short period of time. A mooring device | 08-30-2012 |
| 20140193202 | DOOR STRUCTURE FOR FLOATING FLAP GATE - To make it possible to raise a door body even if it is damaged by an impact of vehicle traffic or falling objects when it is in a lowered state, and to keep the door body in a raised state even if it is damaged by a water pressure of a tsunami or a high tide when it is in a raised state. A door body | 07-10-2014 |
| 20150337513 | Water Control Apparatus - The invention relates to improved water control gates and related inflatable actuators, and associated sealing, manufacture and operation apparatus and methods. Advancements in technologies related to air fitting design, inflated bladder stress relief, inflatable bladder strength enhancement, water gate related slide friction mitigation, abutment and other impounded water seals, gate panel fabrication, traffic accommodating water impoundment structures, and water gate panel system operation efficiency, as well as nappe aeration, hinges, and bladder manufacture technology are disclosed herein. | 11-26-2015 |
| 405103000 | Sliding | 4 |
| 20120275863 | METHOD AND APPARATUS TO MANAGE WATER FLOW - A method and apparatus for managing water flow are provided. A frame positions two gate blades, wherein each blade movable along a single axis, preferably a vertical axis. A lower blade is typically positioned below an upper blade. The upper blade may move independently of the lower blade and may be alternately coupled and decoupled to the lower blade. A coupling module enables the selectable and alternating coupling and decoupling of the upper blade and the lower blade. The coupling module may the spring-loaded rod having a first position and a second position, wherein the spring-loaded rod couples the upper blade and the lower blade in the first position and the spring-loaded catch decouples the upper blade and the lower blade in the second position. | 11-01-2012 |
| 405104000 | Vertical | 3 |
| 20110182669 | Flood vent - A flood vent is provided that allows the unimpeded flow of floodwater in a shuttered duct formed in a housing installed in a structure such as a building. A lower region of the duct is angled down between two and eight degrees from a horizontal plane to form a sill that sheds water to an exterior of the structure, and an upper region of the duct is pivotally fixed to a shutter positioned within the duct. The shutter is capable of swinging between a closed position and an open position in response to the presence of floodwater within at least a portion of the duct. Movement of the shutter to, from or through a closed position is hampered by a releasable coupling of the shutter to the sill by a fin. | 07-28-2011 |
| 20150361630 | AUTOMATIC WATER CONTROL SYSTEM FOR OPEN DITCH DRAINAGE - An automatic water control system for open ditch drainage includes a drainage control apparatus that is designed to be disposed in a drainage ditch and to control the water level in the drainage ditch, as well as the water table level in the field. | 12-17-2015 |
| 405105000 | Gate unseating | 1 |
| 20090148237 | Sea wall system with displaceable and water level actuating components - A sea wall system incorporated into a continuous and foundation supported structure, including a plurality of panels which are displaced in either of vertical or horizontal fashion from interior locations associated with the foundation structure. The panels are each constructed of a lightweight and fluid resistant material and are each displaceable from a first retracted position to an extended position, whereby the components collectively establish a heightened water barrier. A fluid communicating opening is defined in the foundation support and, in response to a rising water level, vertically displaces the panels. | 06-11-2009 |
