Abstract: A debris-filtering downspout and other water runoff conduits and receptacles are disclosed, and include a Coanda screen mounted within a conduit, a culvert, a storm water conveyance or secured to a water collection basin. The Coanda screen provides high water throughput and is self-cleaning while effectively filtering debris contained in an incoming water stream.

Abstract: The concept of my invention, the Stormwater Quality In-Pipe Filter, is a stormwater filter that is inserted into the storm pipe itself. The device is lightweight, removes stormwater pollutants and is easy to maintain; which means the public will have access to improved stormwater quality without the large price and maintenance issues associated with many commercial stormwater quality units available today.

Abstract: A screen material having a flexible member. The screen material includes closely spaced filter wires supported by a plurality of support members. A stranded cable is used as the support members to provide flexibility to the screen material. The filter wires are welded to the members and define filter gaps between adjacent filter wires to allow liquid and small particles to pass through, while retaining particles too large to fit through the filter gaps.

Abstract: A rapid emergency dam is disclosed. During adverse weather conditions heavy rain can lead to rivers breaking their banks and lakes overflowing causing flooding to the surrounding countryside. Coastline defenses can also be breached by increased sea swell and large waves. A fluid barrier section (1) of the present invention comprises an elongate rectangular fluid barrier sheet 2, an apron 4 extending from the lowermost edge 6 of the fluid barrier (2), an elongate rectangular front panel (7) and support means in the form of a plurality of support ribs (8). The fluid barrier sheet (2) is of a flexible fluid impermeable material such as plastics, rubber, waterproof canvas, nylons or any other suitable natural or man made material. A preferred material for the barrier sheet (2) is a fluid impermeable tear resistant flexible foil. In one preferred embodiment of the present invention the lowermost edge (6) of the fluid barrier is bonded to one edge of the apron (4).

Abstract: 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 withdrawal manifold is provided with the base of the substantially conical withdrawal manifold connected to the withdrawal conduit and the manifold extending substantially the axial length of the cylindrical mesh. The substantially conical withdrawal manifold defines uniformly sized and arrayed flow apertures. These flow apertures have the same unit area per unit length of the substantially conical withdrawal conduit. This same unit area per unit length produces within the withdrawal manifold, a substantially constant velocity at all cross-sections of the manifold taken normal the flow along the major axis of the substantially conical shape. Flow velocity distribution through the metal mesh is maintained uniform at all rates of flow through the device.

Abstract: A method dealing with an overflow capacity of a fluid screening system is disclosed, the system (20) including a first screen (22) for screening objects of a first predetermined size from a fluid channel (21) the method comprising the step of: providing an ancillary screening system (23) upstream of the screen (22) and operational upon fluid within the channel (21) reaching a predetermined limit, the ancillary screening system screening objects of a second predetermined size from the fluid channel (21). The second predetermined size can be less than the first predetermined size. The ancillary screening system preferably can include a screen (23) placed substantially tangentially to the main flow of fluid within the fluid channel and includes a raking mechanism for cleaning objects lodged substantially adjacent the ancillary screening system. The output of the ancillary screening system can be interconnected to the fluid channel downstream of the first screen (22).

Abstract: A gutter cover for directing the flow of rainwater from a building roof into a gutter mounted to the peripheral edge thereof while preventing debris such as leaves and twigs from entering and clogging the gutter. The cover is secured to the roof of the building such that rainwater flowing down the shingles will flow across the cover at the bottom roof line. A lower end of the cover has an arcuate nose disposed substantially above the outer edge of the gutter. The surface of the gutter is treated with one or more combinations of coatings and/or substrate textures to slow the flow of water while improving flow to the cover surface. Rainwater will flow around the arcuate nose into the gutter while debris carried by the rainwater is expelled outwardly over the edge of the gutter.

Abstract: A debris recovery device for drainage systems that includes a shaft with a peripheral wall. A basket made out of a meshed material has a spring loaded hingedly mounted bottom wall that is partially opened when it carries a load of a predetermined weight. A peripheral flange rests on the shoulder of the peripheral wall. An oil trap assembly can be optionally added to catch oil spills before reading the drainage system. The oil trap includes a sheet of a porous oil-absorbing material.

Abstract: A screen system used in fluid channels has individually removable bars in a bar screenfield. The removable bars are connected to the screen system through at least two screenfield bar holders. The screenfield bar holders contain a plurality of slots in which the removable bars insert within. A removably mounted screenfield bar retainer at each screenfield bar holder attaches the removable bars. The retainers have teeth that wedge the bars between them.

Abstract: A solid and liquid separation device, comprising: a housing, the housing having an inlet, a solid outlet and a liquid outlet, the liquid outlet located in a lower portion of the housing; a screen located within the housing, the screen positioned above the liquid outlet at an inclined angle, wherein a lower end of the screen is directly below the inlet; a conveying assembly, mounted in the housing located above the screen, and including two rotation shafts co-operating with two drive members, a plurality of connecting rods mounted between the two drive chains, each drive chain comprising at least one longitudinally flexible link, each connecting rod including a scraper, the scraper capable of contacting the screen for driving solids toward an upper end of the screen; and, a squeeze assembly, including a cylinder for supporting solids falling from the upper end of the screen, the cylinder provided with a threaded rod that is configured to be driven to rotate by a power member, the threaded rod capable of output

Abstract: A disposable net assembly is provided for a trap for collecting floatable debris in a waterway or combined sewer system. The net assembly includes a knitted bag-shaped mesh net having a frame surrounding the mouth of the net with the net secured around its rim to the frame. The net may be formed of an inner layer and an outer layer of mesh with the openings of the inner layer being substantially larger than the openings of the outer layer. The frame may be formed of a plastic molded material having side members tapered in the vertical direction to facilitate the changing of the netting assemblies and tapered in the downstream direction to lock into place under the force of the flow. Several embodiments of the frame members have projections thereon which cooperate with a clamping element to hold the net to the frame. Some embodiments of the members have parts that lock together with a post and hole construction while others employ a tension band to clamp the net to the projections on the frame.

Abstract: A means separates solid matter from liquid and includes a perforated separation panel through which the liquid can pass and which prevents the passage of the solid matter of a size larger than a predetermined size. When solid matter becomes located against the panel, the flow of liquid along the face of the panel on which the solid matter is located will tend to cause the solid matter to move from the panel so that the panel is self cleaned and does not become obstructed by the solid matter.

Abstract: A wastewater treatment apparatus comprised of a water inlet 10, a filter component comprised of a series of filters 20, 30, 40 and settling ing areas 12, 22, 32 over a grade, and a series of separator tanks, 42, 52 connected by a lift tube 54 for removal of hydrocarbons, particulate material and other impurities and a water outlet for discharge into either a general wastewater system or a gray water reclamation system.

Abstract: The present invention is a device and method for clearing debris from fluid channels. In one embodiment, the device has a fixed screening member that is permeable in part wherein debris will collect. A movable scraper then scrapes along the screen and removes the debris therefrom and transports the debris to a desired location. In embodiments of the invention, the surface that comprises the screening member may be arcuate, and may be a surface of revolution. Different portions of the screening member may or may not be permeable. The invention may also include an overflow mechanism where overflow water is diverted into a separate unscreened fluid stream. Further, the invention may be suitable for use within a sump.

Abstract: The bar screen of the present invention includes a bar rack and a cleaning rake. The bar rack includes a plurality of aligned bars and is adapted to be at least partially positioned within the channeled water. The cleaning rake is movably coupled to the bar rack and includes a plurality of tooth segments. Each tooth segment includes a base portion and a plurality of teeth. The base portion is coupled to the cleaning rake, and the plurality of teeth is connected to the base portion. Each tooth of the plurality of teeth is adapted to be inserted between adjacent bars on the bar rack to remove debris that has accumulated on the upstream side of the bar rack. The teeth are breakable from the base when the teeth engage immovable debris trapped within the bar rack.

Abstract: A floating system for collecting floatable debris is provided with curtains that direct the flow of water that contains floatables into the traps of the system while functioning as a pressure relief mechanism for the system which avoids placing excessive hydraulic forces on the system under extreme flow conditions. Inlet flow confining curtains have means for allowing the curtain to lift from the bottom of the waterbody as flow becomes progressively more extreme. The means may include patterns of weights in a series of normally horizontal pockets that are fabricated into the curtain at various distances below the water level that hang down to the bottom of the waterbody under normal conditions. The weights are graduated with the heaviest at the top and the lightest at the bottom. Alternatively, openings or windows are formed in the curtain and covered with mesh to allow flow through the windows while containing floatables larger than the size of the openings in the mesh.

Abstract: An ion removal arrangement includes a filter having a filter material made of synthetic or naturally occurring crystalline hydrated aluminum silicates having a framework structure, which contain alkaline or alkaline earth ions. The filter is formed as a double pipe cartridge having an inner pipe and an outer pipe. The filter material is filled in the annular space between the inner pipe and the outer pipe. The filter is installed in the cast iron gutter pipe of a gutter system.

Abstract: The present invention is a screening/washing/dewatering system which utilizes a solids handling pump to vacuum solids captured from a contaminated fluid stream from the system's screening mechanism and to convey them, in a concentrated form and through a closed conduit, to the washing/dewatering mechanism. The use of a solids handling pump enables a screening, washing and dewatering system to contain the captured solids in a completely closed system from their point of capture, through a conveyance system of unlimited length and configuration, to the point that the washed, dewatered screenings are finally discharged. Secondarily, the present invention offers the advantages of being able to capture as small of a solids particle size as is desirable and of providing effective washing and dewatering of the captured particles while minimizing the number of moving parts and maximizing the overall system reliability.

Abstract: A dewatering system for separating a stream of liquid from the items traveling therein. The dewatering system includes a primary grid which catches the stream of liquid from a flume or other device. The liquid stream, but not the solid items, passes through the primary grid and is caught by a baffle which smoothly redirects the liquid. The baffle is arranged with respect to the primary grid so that the surface of the stream flow through the grid is substantially tangential to a leading portion of the baffle.

Abstract: A street sewer passive clean-out system is provided as a system and method to aid municipal workers in the cleaning of street sewers. A net type screen is provided on the end of a fiberglass pole. The pole would be variable in length from eight feet to sixteen feet. The screen would be available in 7, 9 and 11 inch sizes and would be interchangeable on the end of the pole.

Abstract: A submerged intake filter assembly comprising a cylindrical screen, a first end plate, a second end plate, a primary flow modifier pipe, and a plurality of secondary flow modifier pipes. The primary flow modifier pipe is eccentric with the cylindrical screen at the first end plate. The secondary flow modifier pipes are positioned to lie in an annular space between the primary flow modifier pipe and the cylindrical screen.

Abstract: A means separates solid matter from liquid and includes a perforated separation panel through which the liquid can pass and which prevents the passage of the solid matter of a size larger than a predetermined size. When solid matter becomes located against the panel, the flow of liquid along the face of the panel on which the solid matter is located will tend to cause the solid matter to move from the panel so that the panel is self cleaned and does not become obstructed by the solid matter.

Abstract: A device to be used as part of a new or existing rain gutter system, positioned between and joining an open-end gutter and the downspout, that utilizes the movement of flowing rain water to keep the system open and draining by floating and pushing nuisance debris to and out the low open end on to the invention. Removal of the low point end stop and repositioning the downspout connector eliminates the primary causes of pooling and build up of debris. Very steep smooth parallel bars, covering the top of a trough-shaped collector box. receive the effluence and separate the solids from the liquid, as the solids slide down and off the end while the liquids fall between the bars into the collector box for passage to the downspout connected at the bottom. The device enables the gutters to discharge at speeds and volumes consistent with collection minimizing the possibility of spillage while, at the same time, keeping the system open and flowing without the need for frequent hand cleaning.

Abstract: A disposable net assembly is provided for a trap for collecting floatable debris in a waterway or combined sewer system. The net assembly includes a knitted bag-shaped mesh net having a frame surrounding the mouth of the net with the net secured around its rim to the frame. The net may be formed of an inner layer and an outer layer of mesh with the openings of the inner layer being substantially larger than the openings of the outer layer. The frame may be formed of a plastic molded material having side members tapered in the vertical direction to facilitate the changing of the netting assemblies and tapered in the downstream direction to lock into place under the force of the flow. Several embodiments of the frame members have projections thereon which cooperate with a clamping element to hold the net to the frame. Some embodiments of the members have parts that lock together with a post and hole construction while others employ a tension band to clamp the net to the projections on the frame.

Abstract: A screen material having a flexible member. The screen material includes closely spaced filter wires supported by a plurality of support members. A stranded cable is used as the support members to provide flexibility to the screen material. The filter wires are welded to the members and define filter gaps between adjacent filter wires to allow liquid and small particles to pass through, while retaining particles too large to fit through the filter gaps.

Abstract: A floating debris removal system has a bypass or overflow grate that is hinged at the top and positioned to swing downstream under certain conditions. The grate is fastened with a shear ring that will break when sufficient force is generated against the grate by the flow of overflow water and debris through the system. A plow-shaped member pivots off upwardly as flow increases. The member has a plow-shaped blade that spreads the flow across the inlet of the trap of the system to reduce the velocity of the flow. The shape and weight of the blade are selected for optimal function under a range of water levels and flow velocities, and can be altered to perform best for different installations. Debris pits are provided before or after the traps of the system to collect small suspended debris that is not removed by the traps. The pits are sized and configured to slow the velocity of the flow of that the suspended debris settles into the pits.

Abstract: A gross pollutant trap (50) to be installed in a storm water channel so as to receive storm water flowing through the channel and to filer gross pollutants from the storm water. The trap (50) includes a gross pollutant collection area (61) toward which there extends generally parallel sets (63) and (67) of vanes (64) and (68). The area (61) is at least partly defined by a mesh wall (72) through which water returns to the storm water channel.

Abstract: An insert for use in a sewer system to remove oils and solvents carried by surface water runoff. The insert includes a holder and a quantity of water permeable, hydrophobic, oil and solvent absorbing material such as melt blown polypropylene. The holder has two functions. It holds an effective quantity of the absorber and holds it in such a way that the surface water is exposed to the absorber to allow oils and solvents to be absorbed. The insert in preferably placed, cartridge-like, at the inlet or outlet of the sewer system so that it may be quickly checked, replaced and serviced. In one embodiment, the insert also contains a leaf trap.

Abstract: An inlet screen for an ocean thermal power plant has an outer side parallel to the ocean current and a plurality of parallel bars extending at an acute angle to the horizontal, wherein the acute angle opens toward the upstream direction of the current. The total area of through openings in the inlet screen receive the predetermined flow requirement of the power plant at a velocity no greater than 0.5 feet per second, so that fish are not sucked against the screen. The vertical spacing between the bars is no greater than one-half of the inner diameter of tubes in heat exchangers in the plant. The spacing between bars is at a minimum at the outer side of the screen, and the spacing increases between the outer side and the inner side, so that objects do not become wedged between the bars. The inlet screen extends sufficiently below the ocean level to accommodate the plant's water flow requirement at a velocity of no greater than 0.

Abstract: The beaver control screen has a cone-shaped screen having a base, an apex and a horizontal axis. A first set of spaced-apart rods extends from the base to the apex and are disposed in a first conical layer. A second set of rods is disposed in a second conical layer inside the first conical layer and extends toward the apex over a distance of about one-half the length of the first conical layer. The first and second conical layers are set at different angles with the horizontal axis such that a distance between a rod in the first layer and an adjacent rod in the second layer is a same distance along the adjacent rod. At the apex of the screen, the rods in the first conical layer are alternately affixed to the outside edge and to the inside edge of an annular plate.

Abstract: A screen system used in fluid channels has emergency discharge doors. The emergency discharge doors are located within the debris plate of the bar screen system and can be opened, as needed, to prevent fluid from overflowing should the grid screen become obstructed. The emergency discharge doors are located within rectangular openings in the debris plate in which the doors sit flush with the debris plate when closed. The emergency discharge doors can be opened manually, when needed, with handles that are preferably located at the top of the screen system. Lifting the handles releases the locking pins that keep the doors in place, allowing the doors to open freely in response to the fluid pressure on the upstream side of the screen system.

Abstract: A silt filtration system is adapted for placement at an inlet of a storm water catch basin. The filtration system cooperates with a grate located adjacent a street curb at a mouth of the inlet to separate silt and debris entrained in storm water entering the catch basin. The filtration system includes a frame adapted for residing between the grate and the mouth of the inlet. The frame has elongated front, rear, and opposing side frame members. A filtration medium is supported within the frame, and is arranged to filter storm water entering the catch basin through the grate. A backsplash is attached to the rear frame member. The backsplash extends outwardly from the grate and upwardly into an open curb space between the grate and the curb, such that storm water splashing over the grate and into the curb space is deflected by the backsplash into the filtration medium within the frame.

Abstract: A removable filter for in ground catch basins. The present invention includes a catch basin, a top grate, a filter and an attachment of the filter to the top grate. The filter removes solids from the storm water prior to the storm water passing through the grate. It includes an overflow bypass which is compressible and thereby safe for traffic.

Abstract: An in-line storm water drain filter and baffle box is installed within a storm water drain pipe to direct storm water runoff through the storm water drain pipe and through the filter and baffle box prior to the storm water drain water passing through an outfall into a lake, pond or retention area. The filter system includes a housing having an inlet and an outlet and a plurality of chambers formed therein. A housing cover allows for access into the housing and a plurality of filter screens are mounted over each of the plurality of housing chambers for collecting trash from the storm water passing therethrough. The housing has a generally arcuate bottom. The filter system also has inlet and outlet cover frames for holding removably mounted blocker dampers for blocking the ingress and egress of storm drain water during cleaning of the filter system. An oil collection boom is removably mounted in the housing adjacent the inlet for collecting oil in the drain water entering the housing inlet.

Abstract: A removable filter for in ground catch basins. The present invention includes a catch basin, a top grate, a filter and an attachment of the filter to the top grate. The filter is held in place both during filtration and filter removal by the filter's attachment to the grate.

Abstract: A rake cleaning arrangement for a trashrack situated in front of the intake opening of a turbine arrangement, wherein the turbine arrangement is arranged in a weir opening delimited at its sides by two pillars and these pillars delimiting the weir opening are spanned by at least one gangway forming a service platform, comprises a bridge forming a service platform which can be lowered into the weir opening by a crane arranged on top of or on the gangway, and a skimming arrangement for removing flotsam from the trashrack by which a tool can travel along the vertical extent of the trashrack and which is arranged on the bridge, wherein the tool can travel along the vertical extent of the trashrack by the skimming arrangement when the bridge is stationary.

Abstract: A rainwater filter assembly (1) comprises a housing provided with an inlet (9) and an outlet (3), the inlet is adapted to receive rainwater discharging from a downpipe (10), and in use the assembly (1) is located in series with an underground pipework (27), the housing defines a silt collection chamber (7) in which silt can settle from water passing from the inlet to the outlet, the entrance (23) to the outlet from the silt collection chamber being located above the base of the silt collection chamber, and the housing containing or supporting at least one filter (9) adapted to filter coarser material than silt from the rainwater. Advantageously the filter assembly is capable of filtering coarse material from the water and provides a silt collection chamber so as to reduce the quantity of particulate material that passes to the pipework in the ground and to the soakaway normally connected to such pipework.

Abstract: A pollution control device (10) for removal of litter and sediments from a flowing stream of stormwater or the like, the device including an upwardly inclined flume (11,18) adapted to be disposed adjacent the discharge end of a stormwater outlet (16) with a collection container (12) at the opposite end of the flume, the flume (18) and the container (12) being fabricated from expanded metal mesh screen. During stormwater flow, litter entrained with the stormwater is urged up the inclined path of the flume (18) for collection in the container (12) whereas sediments are screened from the flume (18) and the container (12) through apertures in the expanded metal screen and pass through to a sediment sump (29) disposed beneath the device (10). Stormwater which has been so screened is then permitted to flow further downstream. A method of separating litter and sediments from a flowing stream of stormwater is also claimed.

Abstract: An apparatus for interception solid matter from fluid flowing through a drain or pipe including a drain or pipe coupling to receive and direct fluid flow netting to intercept solid matter while permitting fluid to pass through, and a netting release that interacts with the netting and the coupling to automatically release the netting when a predetermined amount of solid matter has been intercepted.

Abstract: A catch basin insert or filter is supported in an open type curb inlet storm drain found on streets and in parking lots. Catch basin filters and inserts are designed to collect coarse sediments, oil, grease and debris from storm water runoff. Such filters normally require support on all four sides of a grate using the weight of the grate. A loop and rod attaches one or more sides of a filter or insert inside a curb inlet storm sewer vault instead of using the weight of the grate.

Abstract: An in-line storm water drain filter and baffle box is installed within a storm water drain pipe to direct storm water runoff through the storm water drain pipe and through the filter and baffle box prior to the storm water drain water passing through an outfall into a lake, pond or retention area. The filter system includes a housing having an inlet and an outlet and a plurality of chambers formed therein. A housing cover allows for access into the housing and a plurality of filter screens are mounted over each of the plurality of housing chambers for collecting trash from the storm water passing therethrough. The housing has a generally arcuate bottom. The filter system also has inlet and outlet cover frames for holding removably mounted blocker dampers for blocking the ingress and egress of storm drain water during cleaning of the filter system. An oil collection boom is removably mounted in the housing adjacent the inlet for collecting oil in the drain water entering the housing inlet.

Abstract: An ion removal arrangement includes a filter having a filter material made of synthetic or naturally occurring crystalline hydrated aluminum silicates having a framework structure, which contain alkaline or alkaline earth ions. The filter is formed as a double pipe cartridge having an inner pipe and an outer pipe. The filter material is filled in the annular space between the inner pipe and the outer pipe. The filter is installed in the cast iron gutter pipe of a gutter system.

Abstract: An apparatus for separating solids from a liquid includes a housing with two spaced-apart side walls, a plurality of parallel looped barrier members disposed side-by-side between the side walls for trapping solid matter, a circulating unit, a driving source unit for activating the circulating unit, and a plurality of moving plates mounted on the circulating unit and moved by the circulating unit along a looped path. The barrier members are spaced-apart from one another so as to define a plurality of looped pathways among adjacent pairs of the barrier members. Each moving plate extends into and moves along a respective one of the looped pathways when the driving source unit is activated so as to remove the solid matter from the barrier members.

Abstract: A device to be used as part of a new or existing rain gutter system, positioned between and joining an open-end gutter and the downspout, that utilizes the movement of flowing rain water to keep the system open and draining by floating and pushing nuisance debris to and out the low open end on to the invention. Removal of the low point end stop and repositioning the downspout connector eliminates the primary causes of pooling and build up of debris. Very steep smooth parallel bars, covering the top of a trough-shaped collector box receive the effluence and separate the solids from the liquid, as the solids slide down and off the end while the liquids fall between the bars into the collector box for passage to the downspout connected at the bottom. The device enables the gutters to discharge at speeds and volumes consistent with collection minimizing the possibility of spillage while, at the same time, keeping the system open and flowing without the need for frequent hand cleaning.

Abstract: An ion removal arrangement includes a filter having a filter material made of synthetic or naturally occurring crystalline hydrated aluminum silicates having a framework structure, which contain alkaline or alkaline earth ions. The filter is formed as a double pipe cartridge having an inner pipe and an outer pipe. The filter material is filled in the annular space between the inner pipe and the outer pipe. The filter is installed in the cast iron gutter pipe of a gutter system.

Abstract: A staged filter apparatus (1) for mechanically separating solids from liquids flowing in channels, gutters or conduits, which has a multiplicity of stage screen bars (7′) connected to form a stationary grating (7), and a multiplicity of stage screen bars (6′) connected to form a movable grating (6), the gratings (6, 7) being arranged inclined in the direction of flow inside the flowing liquid starting from a level situated below the surface, and the stage screen bars (6′, 7′) being constructed in a stepped fashion in the direction facing the incoming flow, and in which the movable grating (6) can be actuated by means of a drive device (8) on a track. The stationary grating (7) being surrounded at least laterally by frame parts (3, 4), is distinguished in that all the drive elements (11, 12, 19; 13) of the movable grating (6) are essentially arranged in the common plane formed by the stationary grating (7) and the movable grating (6) in the zero position.

Abstract: A sump and filter device for use in drain inlets is disclosed. The device comprises a platform having one or more openings for receiving fluid flow. The platform is positioned and supported above the drain exits situated in the lower portion of the drain inlet. The platform is dimensioned for cooperative engagement with the interior perimeter or wall of the particular inlet involved. To inhibit fluid from entering the area of the inlet below the platform, a gasket or bladder may be positioned around the outer perimeter of the platform. An upwardly oriented fluid-receiving member having an upper end and a lower end and an opening therethrough is engaged with at least one of the openings of the platform. The opening in the fluid-receiving member is in fluid communication via its lower end with at least one of the openings in the platform.

Abstract: A catch basin insert or filter is supported in an open type curb inlet storm drain found on streets and in parking lots. Catch basin filters and inserts are designed to collect coarse sediments, oil, grease and debris from storm water runoff. Such filters normally require support on all four sides of a grate using the weight of the grate. A loop and rod attaches one or more sides of a filter or insert inside a curb inlet storm sewer vault instead of using the weight of the grate.

Abstract: A well screen for preventing contaminants such as debris, pests, and insects from falling into the well water. The well screen includes a barrier having top and bottom faces with a plurality of apertures therethrough. A plurality of elongate hanging arms are upwardly extended from the top face of the barrier. The hanging arms each have an outwardly extending upper extent.

Abstract: An adjustable downspout screening device that is width adjustable to allow the adjustable downspout screening device to be used with a variety of gutter downspout sizes.