166 results about "Storm drain" patented technology

A drain filtering system is disclosed, comprising a filter placed within a basket which is suspended from frame positioned underneath a drain grate atop the inlet to a storm drain. The filter is constructed from materials which filter out heavy metals and hydrocarbons from the water passing through. The filter also has overflow outlets to prevent back-up of storm water during periods of heavy rain. The basket is constructed from a corrosion resistant material, preferably high density polyethylene which can withstand the extreme pressures exerted by waste and water collected within the filter.

A filtration system is provided which generally includes a filter assembly and a connector assembly coupled to the filter assembly and structured to position the filter assembly in a drain, for example a storm drain. The connector assembly may include adjustable connectors in order to accommodate various flow conditions. The system may further include a diversion element designed to effectively direct an inflow of water into the filter assembly and a removable contaminant removal pillow.

A removable catch basin filter insert includes a filter container is fitted into a catch basin in the ground at the location where the stormwater exits the gutter and enters the stormwater sewer system. The removable catch basin filter provides pollution capture from stormwater while being easily cleaned. A hinged cover is included at the top of the filter insert to allow the captured pollutants to be evacuated through the use of a vehicle or being tipped nearly upside down by a mechanical arm. A hinged trap door is included at the bottom of the filter insert to allow captured pollutants to be evacuated through the bottom of the device and into a container. By capturing the pollutants with the removable catch basin filter insert before the pollutants enter the mainline storm drain system, clean storm drain systems are provided allowing for cleaner waterways.

Apparatus for filtering out and collecting debris at a storm drain includes upper and lower assemblies, each including a frame member and a filter member. Water passing through or alongside the filter member of the upper assembly is directed into the filter member of the lower assembly.

A surface water runoff filtration device comprises an intake which is adapted to receive storm water and other surface water runoff. The surface water runoff flows from the surface through the intake to a point below the filter media, and then up toward the surface through the filter media. This device may be used in both catch basin storm drains and inline drains.

A method and apparatus for separating oil and debris from urban water run-off, the apparatus being made up of a chamber which is mounted in a storm drain system and has an inner basin with a tilted wire wedge wire screen filter in the path of flow of the run-off, an organic absorber floats on the water as it is collected in the basin, and a discharge plate has a series of slots which are sized to regulate the flow rate of discharge of the water from the basin for removal through an outlet at the lower end of the chamber. The method and apparatus are conformable for use with existing storm drain systems along curbs or gutters as well as parking lots, runways and the like.

A storm drain filter device is provided including a preferably flexible, preferably frameless filter bag designed to be suspended in a drain inlet, and a connector assembly, connected to an open end of the filter bag. The connector assembly may include straps that are sized and structured to allow the flexible filter bag to be directly connected or bound to a removable grate of a storm drain.

The invention is a filter device, apparatus and system used to filter contaminants from liquids, such as water, particularly surface water runoff. The invention is configured to capture sediment, debris, and soluble and insoluble contaminants, including gas, oils and metals that enter the device. The invention consists of an adapter ring, an outer casing, a first filter material, an interior mesh, a blabla filter, and an inner casing. The invention is configured for easy installation within existing manhole frames without significantly impacting the height of the manhole cover and may be used within manholes for underground dry wells, storm drains, catch basins and other similar types of water collection structures.

A pivotal gate system to be installed across the drain opening to a catch basin of a storm drain system and having a catch basin blocking gate that is adapted to rotate from a closed position extending completely across the drain opening at which to trap and prevent leaves, litter and other debris from entering the catch basin during dry periods and light rainfall to an open position removed from the drain opening at which to permit rainwater to enter the catch basin during periods of heavy rainfall. A water wheel is mounted for rotation within the catch basin. The water wheel is coupled to the catch basin blocking gate by way of a pulling cable. The water wheel rotates in response to impact forces caused by rainwater dropping downwardly on a plurality of scoops extending around the water wheel. A rotation of the water wheel generates a pulling force in the pulling cable to be applied to the catch basin blocking gate whereby to cause the blocking gate to move from the closed position to the open position.

The new design has three primary features: (1) a rectangular collar having a centrally located circular cutout with sewn loops formed on the outer edges of the collar; (2) a filter bag having top edges attached to the rectangular collar along the periphery of the circular cutout so that the bag is inserted within the cutout and drops below the level of the collar; and (3) a heavy gauge steel wire inserted within the sewn loops of the rectangular collar forming a structural frame along the periphery of the rectangular collar. The structural frame is preferably formed with overlapping portions coupled together with a retaining means. The overlapping portions are slidably moved relative to one another to change the first and/or second dimension of the frame so that the filter can fit within catch basins openings of various measurements.

A complete storm water management system and process which performs both drainage and treatment tasks and incorporates a wetlands water treatment system. This system creates an infrastructure, flow control which is multi-level and multi-stage. This system incorporates a self-contained wetlands treatment system. This is a modular system which includes three or more linear chambers through which the storm water or other influent passes and is cleaned. The influent which flows into a storm drain, curb inlet, or inflow pipe into the system is directed first into a screening type catch basin inset filter within the first chamber of the system. The wetlands chamber is composed of one or more modular segments which may be made in various depths, lengths and widths. The influent is treated within the first chamber before it passes out of this chamber into the incorporated wetlands system. The water flows through the wetlands chamber where it is further filtered and decontaminated through both an aerobic and anaerobic process. In situations of high runoff there is a bypass component which runs directly from the first chamber and bypasses the wetlands chamber dumping the pretreated water into the discharge final chamber. This system is fitted with a variable level treatment component designed in such a way to offer variable discharge rates and thus vary the level of treatments over a wide range of flow rates. The system can be placed underground, and below concrete, such as in parking lots or park areas.

An apparatus for construction site erosion control for temporarily enclosing the curb inlet of a storm drainage system during construction of a road system in commercial and residential developments is adapted to be placed adjacent a curb inlet of a storm drain in order to enable storm water runoff to drain into the inlet while preventing silt and debris from being carried into and collected therein. The apparatus includes a grate constructed to seat upon an open end of a storm drain inlet, means for filtering debris from storm water runoff passing through the means and through the grate, into the storm drain inlet; and means for securing the grate to a storm drain protection bar.

One of the exemplary filter systems described includes a bracket and a filter module that can be suspended from the bracket by a plurality of flexible supports. The bracket can support the filter system beneath the grate of a storm drain without the need for the filter system to be attached to the grate. The grate can be lifted out of the storm drain separately from the filter unit, which allows the filter system to be lifted without the added weight of the grate. When the grate has been lifted out of the way, a suitable fastener structure can be attached to the bracket of the filter system to make the use of mechanical lifting devices more convenient. The bracket can be manufactured to known dimensions, or it can be offered from among a set of brackets that are pre-configured for known storm drain dimensions or as a standard bracket that can be modified to fit the dimensions of a particular storm drain.

Certain embodiments of the invention provide systems that filter surface water runoff that enters sewer or storm drains. Some embodiments of such systems are composed of a top plate, a main filter chamber, and an enhanced media filter, and each of the top plate, the main chamber, and the enhanced media filter are shaped for mounting into a storm drain. In some embodiments, the top plate is shaped to overlap a perimeter of the sewer or storm drain hole and has a surface water intake opening. In some embodiments, the top plate, the main filter chamber, and the enhanced media filter are vertically arrayed, respectively, from top to bottom.

A drain grate system can be installed in a curbside or storm drain to block the passage of debris while allowing liquid to flow into the drain. The drain grate system can open in response to a high flow rate to allow liquid and debris to flow into the drain. A locking mechanism can maintain the drain grate system in a closed and locked position and can unlock in response to a predetermined amount of force of a fluid flow.

An automatically openable and closeable gate system that will find primary use with the street curb opening to a catch basin or vault of a storm drain system, and for other similar openings, the system having a gate which during dry and low-flow water drainage situations will be in a closed position such that items of trash, debris, litter, leaves and the like will be prevented from entering the basin, vault or system, yet in periods of heavy rainfall or other heavy water run-off situations will automatically open to allow free flow of water into the basis or vault to alleviate water accumulation in the adjacent street and other surrounding areas.

An apparatus for removing debris from water passing through a storm drain comprises a frame adapted to be positioned underneath a storm grate for receiving the water, the frame having a bottom side and major and minor sidewalls, the major sidewalls having openings therein for allowing water to pass; and a filter removably insertable along at least a portion of the major sidewalls for filtering debris from the water.

The present invention relates to a temporary grate cover apparatus for placement over a storm water grate to filter sediment and trash from entering the storm drain during a construction project and to a method of making and attaching a storm water grate cover to a storm water grate.

A stormwater pollution management apparatus for a stormwater basin including a water intake assembly having a first end and a second end generally aligned along an axis and includes a hollow inverted T-shaped connector. A horizontal intake projects in a first direction from one side of the T-shaped connector toward the first end of the water intake assembly. The axially elongated intake defines a series of openings along the length and about the periphery thereof. An outlet projects in a second direction from a second side of the T-shaped connector toward the second end of the water intake assembly. A wrapper extends along and about the generally horizontal intake for creating an energy differential between the sediment water flowing into the water intake assembly and the water in the basin thereby affecting separation of particulate sediment from the water flowing into the water intake assembly. A hollow riser extends upwardly from the connector. A terminal end of the riser extends a predetermined distance below an emergency overflow level of the basin. Moreover, the hollow riser defines a passage for viewing water quality flowing toward the second end of the water intake assembly. A method for managing stormwater pollution drainage from a stormwater basin into a storm drain is also disclosed.