Abstract: A trench drain assembly includes a cross-bar that can swivel into arcuate guides in the sidewalls of the trench drain assembly and a grate clip assembly for reversibly attaching a grate to a cross-bar, whether of the swivel in type described herein or a cross-bar of a different style.

Abstract: The present invention is directed to a debris catching and removing apparatus and method. For example, bar screens or grids for collecting and removing trash or debris from storm, waste water, or sewage systems, and mounting systems and methods therefore are provided. These apparatus and method may provide a long-lasting, light-weight, and low-cost debris screen screening solutions for removing trash or debris from, for example, storm, waste water, or sewage systems. The invention may be particularly applicable to small lift stations that use submersible pumps or surface mounted pumps that suction waste water from a wet well.

Abstract: A clean out notification disc is placed in a clean out underneath a clean out cover to provide a durable notification mechanism of certain conditions of a main sewer line, such as, for example, the existence of a sewer liner, a backflow valve or a grease trap.

Abstract: A filtration system having an underdrain block and an underdrain wall adaptor. The underdrain wall adaptor includes a vertical end and horizontal base. The vertical end extends from a top wall to a bottom wall of an underdrain block and mates with an end portion of an underdrain block to secure the underdrain wall adaptor to the underdrain block. The horizontal base extends from the vertical end. The invention also includes a method of installing an underdrain wall adaptor. The underdrain wall adaptor controls air and water passage between the flume and the underdrain.

Abstract: A floor drain assembly including a collar, a shank coupled to the collar, a frame, an insert coupled to the shank and capturing the frame between the insert and the shank, a strainer coupled to the frame, a protective cover coupled to the strainer, and a sleeve surrounding the collar, the shank, the frame, the insert, the strainer, and the protective cover. The shank is moveable relative to the collar and includes a spherically shaped shank surface. The frame includes a lower frame surface shaped to engage the shank surface and an upper frame surface. The insert is moveable relative to the shank and includes a spherically shape insert surface engaged with the upper frame surface such that the frame is captured between the insert and the shank.

Abstract: A three-dimensional printing apparatus is disclosed has one or more troughs for receiving excess deposited particulate. Such troughs may be positioned to receive the excess deposited particulate into a particulate receiving chamber of the trough. An evacuation chamber is located at the bottom of each trough. A partition separates the evacuation chamber from the receiving chamber of the trough. The partition is selectively perforated to permit a desired amount of the particulate to flow into the evacuation chamber from the receiving chamber. The evacuation chamber is connected to a vacuum source to periodically or continuously draw ambient gas from a gas inlet to the evacuation chamber and/or from the receiving chamber through the perforations of the partition and then through the evacuation chamber toward the vacuum source to entrain an amount of the particulate and carry the entrained particulate out of the evacuation chamber.

Abstract: A filtration barrier system includes an elongated body configured to rest flat on a top surface of pool walkway surface and a perforated cylindrical filtration head integrally attached to the elongated body, the cylindrical filtration head having a length extending from a first end and a second end, and forming a hollow cavity. The perforated cylindrical filtration head completely covers an opening in fluid communication with a filtration basket and configured to prevent floating debris from entering into the opening.

Abstract: A filter apparatus comprising an inlet for receiving a target fluid to be filtered, an outlet for allowing exit of filtered target fluid and a filter plate disposed between the inlet and the outlet. The filter plate having a lengthwise direction and a widthwise direction and the inlet being disposed proximal one portion of the filter plate for delivering at least some of the fluid onto the filter means initially in a lengthwise direction along the filter plate. The outlet being disposed on an opposing portion of the filter plate in the lengthwise direction and at a distance just below the inlet such that the filter apparatus maintains a low profile in a heightwise direction.

Abstract: A dual action retractable screen includes a first screen portion with a first screen portion perforated surface connected to the hinge mount via a horizontal hinge, which allows the first screen portion to rotate within a substantially horizontal plane. The screen also has a second screen portion with a second screen portion perforated surface and a latch pin. A vertical hinge connects the first screen portion to the second screen portion and allows the second screen portion to rotate within a substantially vertical plane. The screen also includes a latch mount that connects to the curb inlet and has a latch saddle that receives the latch pin. The screen operates in two modes: (1) a closed mode where the latch pin is disposed of in the latch saddle, inhibiting rotation about the horizontal hinge; and (2) an open mode where the latch pin is dislodged from the latch saddle, permitting rotation about the horizontal hinge and about the vertical hinge.

Abstract: A masonry tool cleaning and storage device may include one or more bins capable of holding water and adapted to hang from the sides of a conventional wheel barrow. The bins may or may not have lids, which may or may not be attached to the bins. The device may optionally include a combined drying table and water return surface adapted to route water, e.g. dripping from wet tools, back to the water bins. The drying table may include a grated surface that is more or less horizontal while assembled in a working configuration. The grated surface may be above a downwardly sloped surface adapted to return water that has fallen through the grated surface back to the bins. When work is complete, the bins may be emptied of water, cleaned, and used for tool storage.

Abstract: A pollution trap for storm-water runoff includes a filter-box assembly that provides for top-down maintenance. The filter-box assembly includes at least one filter container, a filter-container support, and a peripheral seal, so the filter container can be lifted from and lowered into the trap from above. The filter container includes sidewalls forming an open bottom and top, a bottom filter support, and a top filter retainer, with the container receiving a stack of intelligently-selected filters supported on the filter support and kept in the container by the top filter retainer. An optional adjustable hold-down assembly holds down the top filter retainer and the underlying filters. The filter-container support holds the filter container up off the trap floor so the storm-water can up-flow through it. And the seal is interposed peripherally between the filter container and the filter-container support so the storm-water cannot flow around the filter container.

Abstract: An anti-ice buildup system for roof vent pipes that is easy to install and that prevents ice buildup in roof vent pipes. The anti-ice buildup system for roof vent pipes generally includes a first segment and a second segment extending downwardly from the first segment. At least a portion of the first segment is adapted to remain outside of a vent pipe and at least a portion of the second segment is adapted to extend downwardly through an upper opening in the vent pipe. The second segment is constructed of a thermal conductive material to conduct heat from the vent air and sunlight.

Abstract: A dual action retractable screen includes a first screen portion with a first screen portion perforated surface connected to the hinge mount via a horizontal hinge, which allows the first screen portion to rotate within a substantially horizontal plane. The screen also has a second screen portion with a second screen portion perforated surface and a latch pin. A vertical hinge connects the first screen portion to the second screen portion and allows the second screen portion to rotate within a substantially vertical plane. The screen also includes a latch mount that connects to the curb inlet and has a latch saddle that receives the latch pin. The screen operates in two modes: (1) a closed mode where the latch pin is disposed of in the latch saddle, inhibiting rotation about the horizontal hinge; and (2) an open mode where the latch pin is dislodged from the latch saddle, permitting rotation about the horizontal hinge and about the vertical hinge.

Abstract: In a drainage device for draining road surfaces, parking areas, roof surfaces or the like, comprising a trough body and filter material which is situated in the trough body and is intended for cleaning water loaded with solid particles and/or dissolved pollutants, the filter material is a constituent part of a filter device which has a plurality of filter elements which can be handled individually and, if required, can be removed from the trough body, which filter elements each have a water-permeable enveloping wall with the filter material situated within the enveloping wall.

Abstract: A storm water inlet filter system is disclosed which comprises at least two, but preferably three, distinct filter layers. The storm water inlet filter system uses a nested basket structure in which one filter basket fits within another. Preferably a piece of disposable filter media is placed within the internal basket. Polluted water flows first into the inner basket, and onto the disposable filter media. Overflowing water passes into the outermost basket which can remove debris. The storm water inlet filter system can be used with many existing drainage systems, and can be cleaned and the disposable filter media replaced without the use of specialized equipment or training.

Abstract: The present invention relates to a curb, grate, and combination curb and grate inlet temporary filtering system to filter silt, sedimentation and debris from runoff entering a storm water drainage system. The invention comprises a body sized to fit over the inlet and includes one or more support members encapsulated with a filter material that assists in the filtering of water entering the storm sewer inlet.

Abstract: A sump drain includes a ring-shaped chamber having an inner sidewall with a diameter of at least about 18 inches and an outer sidewall, and a circular opening between the sidewalls preferably about an inch wide and optionally having a grid cover. Preferably the inner sidewall has a number of ports extending inwardly to radial conduits to a central hub for tying into a pool or spa filtering system, with the central hub operating as a clean out and having a removable cap. Upon installation, plaster substantially fills the space between the chamber and the central hub, such that the sump drain attractively blends in with the pool or spa floor. When installed, the top opening is preferably substantially flush with the pool or spa floor while being safely unblockable. And the sump drain preferably further includes channels both outboard and inboard from the chamber top opening and around the central hub, to help prevent water from passing through the plaster into the shotcrete of the pool or spa.

Abstract: Embodiments include plastic floor drains or sinks. Embodiments also include plastic floor drain which comprises an approximately square receptor having an open top with a notch and a rim at the open top, an outlet at the bottom, and four sides. Each side has a shoulder located along the width of each side at approximately ? the distance from the top to the bottom of the body. Embodiments also include a plastic floor drain which comprises an approximately square receptor having an open top with a notch and a rim at the open top, an outlet at the bottom, and four sides. Each side has a shoulder having a bottom side and located along the width of each side at approximately ? the distance from the top to the bottom of the receptor. There are a multiplicity of seepage holes in the receptor arrayed along the top sides of the shoulders. A four-sided anchor flange is adhesively connected to the shoulder.

Abstract: A guard for curb inlets prevents entry of large objects such as cans and bottles into the opening of the curb inlet, but allows water to enter the opening. The guard defines a relief on its bottom side so that the guard may be installed at the correct height without measurement. The guard may be composed of first and second or first, second and third slidably-engaged portions to allow the length of the guard to be user-selectable to fit a variety of curb inlets. The guard may include a grill to strain smaller debris from the water.

Abstract: A drain cover includes a base portion including an outer rim and defining a collection area. The drain cover also includes a central portion coupled to the base portion and extending upward from the base portion, wherein the collection area tapers from the central portion toward the outer rim, and wherein the collection area is vertically lower adjacent the central portion relative to an outer periphery of the collection area.

Abstract: A grate cover in combination with a swimming pool being installed in a recess in the top of a sump. The grate is formed of an upper and a lower section. The upper section exhibits four squares or four triangles therein, The upper section has a dome-shaped configuration and has four square or triangular shapes therein, depending on the geometric division therein, each shape has openings therein. The lower section has four trapezoid shapes therein. Each of the shapes of the upper section, whether square or triangular, has a concave surface curvature therein at a transition between the upper and the lower section. Each of the trapezoids of the lower section has two concave surfaces- curvatures therein. One curvature extends in a first direction from the upper section toward an outside edge of grate cover. The other second concave curvature extends in a direction which is normal to the first direction.

Abstract: An areaway drain cover with a top surface, a bottom surface, and a peripheral edge surface with a plurality of passages passing from the top surface to the bottom surface which allow water to pass through the passages while preventing leaves and debris from clogging the drain. The bottom surface also comprises a plurality of protrusions projecting downwardly from the bottom surface so that when the drain cover is placed over a drain, the protrusions allow the drain cover to be spaced horizontally above the surface on which the drain cover is resting so as to allow water to pass.

Abstract: Flooring and drain assemblies are provided. The assemblies provide a plurality of panels or flooring members for surrounding and directing fluid toward a drain body. Assemblies include a drain body may be secured to or in fluid communication with additional plumbing features, and layers or features for connecting the assembly. The drain body is connected to at least one the flooring members in various ways to promote proper floor drainage.

Abstract: A baffle insert is disclosed for a catch basin having a sump, a plurality of walls defining a passage to the sump, and an outlet. The insert comprises a ramp for positioning in the passage to partially occlude the passage and direct inflowing fluid downwardly and toward a wall of the basin. A grate is positioned below the ramp to intercept fluid falling from the ramp and direct it toward the basin outlet. The grate forms a barrier above the sump and has a plurality of apertures for permitting fluid to communicate with the sump. The ramp and the grate mounted to an post that rests on the bottom of the sump. The post is extendible to adjust the heights of the ramp and the grate above the sump.

Abstract: A drain assembly for providing a drain in a floor. The drain assembly includes a drain conduit, a strainer and an adaptor. The drain conduit has an inner surface that defines a fluid flow path and an outer surface. The strainer is disposed above the drain conduit and has openings in fluid communication with the fluid flow path of the drain conduit. The adaptor may be securable in the drain conduit and may be connected to the strainer. Prior to securing the adaptor in the drain conduit, a position of the adaptor in the drain conduit may be moveable to allow a top surface of the strainer to be substantially aligned with the floor. A method of assembly is also disclosed.

Abstract: A swimming pool safety drain including a base having a bottom, and having end walls and side walls extending upwardly from the bottom to form an open top enclosure. A cover is removably secured to the enclosure and, when secured to the enclosure forms an inlet slot about the periphery thereof. A plurality of drain outlets are formed in the base for connection to water recirculating systems for the swimming pool and any supplemental water recirculating system. A safety bridge is secured in the enclosure between the side walls and is positioned over the drain outlets to provide hair and limb entrapment protection. A construction cover is provided to temporarily replace the permanent cover during construction and installation of the drain.

Abstract: Embodiments of the invention provide automatically retractable screens, adapted for installation into a storm drain curb inlet, configured such that the automatically retractable screens are biased toward the closed position and thereby reliably closed during periods of no, low, or moderate surface runoff water flows, yet also reliably open when surface runoff water flow rates increase to moderate or high levels.

Abstract: 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.

Abstract: A filter assembly for use in drainage systems to prevent the buildup of eroded materials such as soil, leaves and other debris. The assembly includes a unitary frame and a filter media attached to the frame and is adapted to be retained within a component of a drainage sewer such as a catch basin. A porous material filter media such as a woven or non-woven geotextile allows for the flow of water through the filter while retaining debris or soil within the filter. The filter media extends into the basin to provide volume for the retained material without blocking the entire surface of the filter.

Abstract: A grate cover being installed in a recess in the top of a sump. The grate is formed of an upper and a lower section. The upper section exhibits four squares or four triangles therein, The upper section has a dome-shaped configuration and has four square or triangular shapes therein, depending on the geometric division therein, each shape has openings therein. The lower section has four trapezoid shapes therein. Each of the shapes of the upper section, whether square or triangular, has a concave surface curvature therein at a transition between the upper and the lower section. Each of the trapezoids of the lower section has two concave surfaces curvatures therein. One curvature extends in a first direction from the upper section toward an outside edge of grate cover. The other second concave curvature extends in a direction which is normal to the first direction.

Abstract: A restrictor plate assembly 10 is disclosed for restricting particulate flow into a curb box 12, through a mouth 14 thereof. The assembly 10 includes a restrictor plate 16 adapted for being secured at an inside surface 18 of the curb box mouth 14. A proximate clamp structure 20 is positioned at a proximate end 22 the restrictor plate 16 and a distal clamp structure 24 is positioned at a distal end 26 of the restrictor plate 16 that is width-wise spaced from the proximate end 26 of the restrictor plate. The proximate and distal clamp structures 20, 24 are adapted for securing the restrictor plate 16 within the curb box 12 without gripping the inside surface 18 or an outside surface 28 of the curb box mouth 14.

Abstract: A flexible, water-permeable filter basket may be used to collect and remove debris from a sump in a drain-entry structure (e.g., a catch-basin). The filter basket includes a basket floor having a perimeter of substantially the same size and shape as a sump floor, at least one basket sidewall corresponding to at least one sump sidewall, and one or more handles collectively affixed to the at least one basket sidewall, the at least one basket sidewall collectively including a resilient frame. The filter basket may be used as a deformable sump insert to collect debris falling into a drain-entry structure for removal without use of a vactor truck.

Abstract: An overflow strainer includes: a restraining portion (two or more tabs configured to prevent the overflow strainer from falling down the overflow tube, and/or a lip configured for the same purpose); a sealing portion (a lip configured to seal against the top of the overflow tube, and/or a body configured to seal against an internal wall of the overflow tube, and/or a concentric outer seal configured to seal against an external wall of the overflow tube); and a mesh portion configured to block waste solids while allowing fluids to pass. Further, a handle may facilitate the user extracting the overflow strainer from inside of the overflow tube. The mesh portion may be substantially conical or cylindrical or hemispherical.

Abstract: A drain cover with a locking mechanism which has a cylindrical body with a first end, a second end, an end wall at the first end and a peripheral sidewall that extends between the first end and the second end. The peripheral sidewall has an exterior surface and an interior surface which defines an interior bore. A wedge member positioned at the second end of the peripheral sidewall and is movable from a release position to a locking position. In the release position each wedge member is positioned at the second end of the peripheral sidewall. In the locking position each wedge member is moved up the exterior surface of the peripheral sidewall toward the first end. Means are provided for moving each wedge member from the release position to the locking position.

Abstract: In a drainage device for draining road surfaces, parking areas, roof surfaces or the like, comprising a trough body and filter material which is situated in the trough body and is intended for cleaning water loaded with solid particles and/or dissolved pollutants, the filter material is a constituent part of a filter device which has a plurality of filter elements which can be handled individually and, if required, can be removed from the trough body, which filter elements each have a water-permeable enveloping wall with the filter material situated within the enveloping wall.

Abstract: A storm water pretreatment chamber is provided. The storm water pretreatment chamber includes; one or more filter sidewalls; one or more optional water-impermeable sidewalls; one or more optional chamber grates; and one or more catch rails. Methods of treating storm water are also provided.

Abstract: The application provides a funnel, funnel assembly, and a system for eliminating splash from drain pipes that discharge from an elevation above a floor drain.

Abstract: A universal drain adapter comprising: a ring and a neck having a common substantially centrally disposed threaded hole; the ring having a plurality of holes and at least one other hole, each hole of the plurality of holes comprising a substantially centrally disposed portion, a first substantially rabbit ear portion, and a second substantially rabbit ear portion opposing the first substantially rabbit ear portion, the at least one other hole having another of the substantially centrally disposed portions, a substantially mouse ear portion, the other first substantially rabbit ear portion opposing the substantially mouse ear portion, the substantially centrally disposed portions tangentially directed about a first tangent line concentric with the ring, the first substantially rabbit ear portions tangentially directed about a second tangent line, the second substantially rabbit ear portions tangentially directed about a third tangent line, the substantially mouse ear portion tangentially directed about the firs

Abstract: A movable filter grid for a drain inlet has a drain grill, an annular seat and an annular fastener. The drain grill has an annular plate and multiple support ribs. A first end of each support rib is connected to an outer circumferential edge of the annular plate, and a second end of the support rib radially extends outwards from the annular plate. An inner wall of an annular seat is securely connected to the second ends of the support ribs. The annular fastener has multiple pin holders annularly connected. Each pin holder has a through hole vertically formed through the pin holder and detachably mounted through by a pin. When the movable filter grid is applied to drain inlets on different terrains, the pins taking the form of a grating can prevent debris from blocking the drain holes.

Abstract: A screen media element having at least one apertured section. The apertured section has a first surface intended to receive and carry material to be screened, a second surface opposite the first surface, apertures extending from the first surface to the second surface and a circumferential surface connecting the first and second surfaces. The apertured section is surrounded by an outer frame along the circumferential surface, characterized in that the apertured section is made from ceramic material and that the outer frame is made of elastomeric material. The invention further relates to a method for manufacturing such a screen media element, and a screen comprising such screen media elements.

Abstract: A waste outlet unit cover for a waste water outlet unit for a shower tray, the cover comprising a non-screw threaded attachment arrangement by which the cover can be securely and releasably attached to the waste water outlet unit. A waste water outlet unit having such a cover is also provided.

Abstract: The present invention relates to a grease trap system for wastewater systems, having an inlet pipe with a shut off valve, an outlet pipe with a shut off valve and a grease interceptor comprising a replaceable container body including means to trap fats, oils and grease within the body. The body has inlet and outlet slide couplers in opposed walls, and each coupler has an associated connecting means to sealingly fluidly connect the slide couplers to the inlet and outlet pipes. When the container body is disconnected from the pipes the slide couplers may also be sealed by a removable plug for transport. The slide couplers displace inwardly and outwardly relative to the container to give clearance between the pipes to remove the container. A method of replacing full containers with empty containers is also comprehended.

Abstract: A device configured for being received within a floor drain is provided. The device includes a basket assembly containing a liquid-soluble treatment material therein. A drain cover defines an opening that receives the basket assembly. A basket assembly lid defines at least one aperture for allowing flow of liquid into the basket assembly, the basket assembly includes a flange for cooperatively engaging a recess defined in the drain cover to thereby engage the lid with the drain cover.

Abstract: A filter assembly for use in drainage systems to prevent the buildup of eroded materials such as soil, leaves and other debris. The assembly includes a unitary frame and a filter media attached to the frame and is adapted to be retained within a component of a drainage sewer such as a catch basin. A porous material filter media such as a woven or non-woven geotextile allows for the flow of water through the filter while retaining debris or soil within the filter. The filter media extends into the basin to provide volume for the retained material without blocking the entire surface of the filter.

Abstract: A storm water catch basin filter having a sampling port such that a real-time sample can be taken of water flowing through the filter without the need to remove the filter, the sampling port being an opening preferably covered by a removable closure member or a self-sealing valve.

Abstract: A floor drain cover is provided having a substantially rectangular frame defined by a first and second parallel outer frame member, perpendicular cross members connecting the outer frame members together, and an apertured screen positioned over the frame to prevent solid debris from passing therethrough and into a floor drain. The device is positioned over an existing floor drain to prevent debris from clogging the floor drain grate or drain interior. The apertured screen is elevated above the ground and positioned along the upper surfaces of the frame to collect falling debris, while debris is separated from free flowing water entering through the frame sides and ends by way of side frame member apertures and screened end portions. The cover can be periodically removed and cleaned, while the underlying drain is kept largely clean of debris that would otherwise require internal cleaning.

Abstract: A drain cover having a main drainage surface with relatively larger apertures or openings therein, comprising generally 50 percent of the surface, so that larger debris is accepted into a related drain pipe when a depending skirt portion of the drain cover, having smaller perforations, becomes clogged. In this way a two-layer drainage system for a generally flat surface is provided that allows draining of water and small particulates alone when possible, but upon the clogging of the smaller openings the generally flat surface can be protected from flooding by allowing larger particulates to drain into the main drainage surface. The main drainage surface is held above the flat surface by the depending skirt, at a level of 3/8 to 1 inch above the flat surface. When the depending skirt openings are clogged the water and debris will rise until allowed to drain into the larger openings of the main drainage surface.

Abstract: Embodiments of a restrictor plate assembly are disclosed that are adapted for being installed into a curb box hood for restricting particulate flow through an inlet mouth of the hood and into a cavity of the hood. An exemplary assembly can include a lengthwise proximate member and a lengthwise distal member which slide lengthwise against each other for increasing a length of the restrictor plate assembly, so that the proximate member can engage a widthwise proximate internal side wall of the hood, and the distal member engages a widthwise distal internal side wall of the hood; thereby securing the restrictor plate assembly within the hood.

Abstract: A flush plug and a collar are used in installing a drain or cleanout. A flush plug is temporarily attached to the nipple of a cleanout or to a drain base and leveled. Concrete is then poured flush with the top of the flush plug. After the flush plug is removed from the cured concrete, a collar is installed in the hole in the concrete left by the flush plug. The outside of the lower portion of the collar is beveled like the flush plug. The upper portion of the collar includes a sleeve rising above the top surface of the surrounding concrete by an amount equal to the thickness of the specific floor finish. Tile or other finish may then be laid to around the collar. The installed drain will be flush and level with the flooring around it.

Abstract: An environmental barrier device for use with a storm grate includes a substantially rectangular filter member a first fastening portion, a second fastening portion, a third fastening portion, a fourth fastening portion, a fifth fastening portion, and a sixth fastening portion. The first fastening portion is selectively secured to the third fastening portion and the fourth fastening portion. The second fastening portion is selectively secured to the fifth fastening portion and the sixth fastening portion. The first edge, the second edge, the third edge and the fourth edge define an opening therebetween.