Abstract: A drain system includes a drain cover positionable over a drain opening in a floor. The drain cover has a sidewall extending about a periphery of the drain cover and a release surface on the sidewall tapering or sloping inwardly toward a bottom of the drain cover. The release surface is arranged to interface with a support frame configured to support and position the drain cover over the drain opening and reduce frictional and shear forces between the drain cover and the support frame during removal of the drain cover from the support frame.

Abstract: An elevator trench drain including a trench at least partially defining a drain volume, where the trench includes a base wall and at least one side wall extending from the base wall, a conduit coupled to the trench and open to the drain volume, and a grate coupled to the trench. The grate includes a top surface defining a periphery, at least one wall extending from a periphery of the top surface and configured to contact the base wall of the trench, and a support configured to selectively contact the base wall at a location inside the periphery of the top surface.

Abstract: A trench drain includes a trench, a grating seat and a grating hingedly connected to the trench. The trench has a base wall with peripheral side walls extending upwardly therefrom and an outwardly-extending peripheral flange. The grating seat is configured to receive the grating. The peripheral side walls of the trench have a pair of opposing elongated slots formed therein and the grating has a pair of posts on opposing ends thereof. Each of the pair of posts on the grating are received in a respective one of the pair of opposing elongated slots of the trench to establish an axis of rotation.

Abstract: The invention relates to a locking element (11) for securing a grate (3). The locking element (11) comprises a spring element (113) kept between a cover element (111a) and a spring support element (117). The spring support element (117) is displaceable relative to the cover element (111a) by means of an actuating element (115). The displacement of the spring support element (117) causes a movement of at least one of the ends (113a, 113b) of the spring element (113) relative to the cover element (111a).

Abstract: Disclosed in the present application is a system for a storm water and traffic collector box culvert. The system may comprise a plurality of reinforced slabs with an upper slab that may be configured as a reinforced surface to collect storm water runoff. The plurality of slabs may be connected by a plurality of attachment mechanisms. Accordingly, the present system is directed to an environmentally friendly culvert design that can minimize the magnitude of earthworks required by traditional drainage systems while also providing increased drainage capabilities.

Abstract: A concrete form for installing a bath filler includes a base having an exposed top surface, a perimeter wall extending along each side of the base and oriented perpendicular to the base, and a rim extending from a top edge of the perimeter wall outwardly from the exposed top surface. The concrete form includes at least one notch disposed along the rim, such that the at least one notch is configured to align with a desired location of the bath filler. The concrete form includes a drill template corresponding with the notches. The drill template includes a plurality of markers configured to indicate drill-hole placement.

Abstract: A strainer for a ligature resistant floor drain and a ligature resistant floor drain incorporating a strainer. The strainer includes a top plate with two sets of openings forming rings. A cylindrical extension extends from the top plate at a location between the rings. Also provided are two series of webs, each web of which is located between an adjacent pair of openings in one of the rings. Optionally, a strainer plate is attached to the cylindrical extension and extends at least one of radially inward and outward relative from the cylindrical extension. The floor drain further includes a strainer frame having a receptacle into which the strainer is received.

Abstract: A ligature resistant strainer for a drain assembly and connecting to a drain system. The strainer includes a grate and an extension block coupled to the grate. The grate defines a first thickness, and the extension block defines a second thickness that is greater than the first thickness. Portions of the grate cooperate with portions of the extension block to define a plurality of apertures extending through the strainer and inhibiting attachment of a ligature to the strainer.

Abstract: A drain protector having a flexible adsorbent pad, a raised insert, and a cover is described. The pad and the insert each includes aligned apertures. The raised insert is positioned over the flexible adsorbent pad or within the aperture of the flexible adsorbent pad. The cover is connected to the flexible adsorbent pad, a raised insert, forming a space over the insert. The drain protector is made from adsorbent material for blocking sediment, collecting contaminants and filtering water into a drain. The cover of the drain protector reinforces the sheet and insert to protect against damage from traffic over the drain protector.

Abstract: An adjustable floor drain apparatus includes a housing configured for positioning adjacent a drain pipe, manhole riser, or other feature, a leveling frame configured to be positioned at least partially above the housing, a grate configured to be positioned at least partially above the leveling frame and secured to the leveling frame, and a leveling member. The leveling member can be configured such that actuating the leveling member adjusts the position of the grate relative to the housing while the leveling member remains fixed relative to the housing. The leveling member can be configured such that actuating the leveling member moves the leveling member relative to the grate and adjusts the position of the grate relative to the housing.

Abstract: 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.

Abstract: A drain stopper assembly with a removable debris trap is comprised of a debris trap releasably engaged with a drain stopper assembly. The debris trap is comprised of a plurality of radially extending bristles extending from an outer surface. The plurality of bristles is arranged to trap debris entering a drain outlet.

Abstract: A sump system includes a catch basin and a sump pump. The catch basin is configured to receive runoff water. The catch basin defines a vertical chamber extending downward. The catch basin also defines a horizontal chamber intersecting the vertical chamber to form an intersecting region. The horizontal chamber extends outwardly in first and second horizontal directions from the vertical chamber such that the horizontal chamber forms first and second regions on first and second horizontal sides the intersecting region, respectively. The vertical chamber extends downward in a vertical direction from the horizontal chamber such that the vertical chamber forms a third region on a bottom side of the intersecting region. The sump pump is at least partially disposed within the third region.

Abstract: An ion exchange filter assembly includes an ion exchange filter cartridge and a housing. The ion exchange filter cartridge includes an ion exchange filter for filtering a coolant. The housing includes a first section receiving the ion exchange filter cartridge and a second section for degassing the coolant. The first section is in fluid communication with the second section.

Abstract: An adaptive device for connecting a waterproofing to a built-in shower drain, said built-in drain comprising a drain body mountable in a clamping ring, which comprises a body made up of an upper section and a lower section with a through hole, in parallel arrangement at different levels, the upper and lower sections joined together by means of a deformable intermediate section which is capable of folding by means of at least one fold line. This device provides a global constructive system for built-in showers, greater versatility and adaptability to different thicknesses and layers of materials which may be used in the construction of a shower.

Abstract: A storm water capture and filtration system may secure in a catch basin or other area subject to flows of water from streets, channels, and the like as a result of run off from storms. A filter system may include a capture portion including attachment mechanisms, a funnel, various supports, and a filter hanger designed and calculated to capture all water entering a storm water inlet and directing it toward a bag filter. A gap is provided between a funnel and filter hanger in order to provide accommodation for overflow, while an anti-backflow skirt on the filter bag resists flushing of captured pollution out of the bag in overflow condition.

Abstract: An above grate based inlet filter system for erosion and sediment control comprises a filter mat configured to extend beyond the perimeter of the grate and a securing mechanism, such as magnets, configured to securing the filter mat around the perimeter of the grate. The system may include a filter berm secured in vicinity to the mat, and a rectangular array of magnets coupling the filter mat to the grate. The natural fiber filter mat may effectively be formed of vertically aligned coir fibers or alternatively of reticulated foam. Multiple side edges of the mat are undulating having a pattern of repeating recesses. The mat includes a plurality of high flow holes extending into the mat and which are closed at a bottom surface thereof. The mat includes at least one removable dewatering plug configured to allow for selective mat bypass.

Abstract: A pool perimeter assembly includes conduits extending between the sidewalls, wherein the conduits are separated by a common wall between the sidewalls. A grate is positioned on the gutter apparatus to direct fluid flow into at least one of the conduits. The fluid flow may include water or air. The grate is so dimensioned relative to the gutter apparatus so as to fit within a grate fitting device connected to the gutter assembly. The grate fitting device is a grate angle having at least a riser and a lip. The grate angle may include a welding base used in up-fitting existing pool structures to accommodate new grates.

Abstract: An expansion ring mountable in a storm drain for supporting a filtering apparatus includes a ring-shaped expansion member having an adjustable diameter which is cut transversely to define two open end portions thereon which face each other and which are separated from each other by a predetermined distance to define a gap therebetween. A wedge assembly is positioned at the gap between the open end portions of the expansion member and is adjustable to increase the diameter of the expansion member. When the wedge assembly is adjusted to increase the diameter of the expansion member, the expansion member tightly engages a side wall of a portion of the storm drain in which the expansion ring is mounted to secure the expansion ring, and a filtering apparatus supported thereby, in a desired position.

Abstract: The present disclosure describes a domestic appliance floor drain assembly and related methods for implementing a domestic appliance floor drain assembly. In one such embodiment, an exemplary domestic appliance floor drain assembly includes a floor drain liner with a basin to collect fluids that may be leaking from a domestic appliance; and a floor drain insert configured to fit within the basin, wherein the floor drain insert has a rigid structure that is configured to direct leaking fluids from the domestic appliance to an opening in the floor drain liner.

Abstract: The invention described is a pipe guard that prevents unwanted debris from entering a pipe while still allowing the flow of water. The pipe guard includes braces connecting a mounting flange on the outside of the pipe to a plate within the pipe having a plurality of holes. A bracket extends from one brace to the other between the flange and plate to provide additional support and rigidity to the pipe guard as well as acting as a handle that can be grasped by a worker to remove the pipe guard and material that may build up on the plate. The pipe guard is secured within the pipe by fasteners that extend through threaded holes in the braces and partially embed into the interior wall of the pipe. Accordingly, the pipe guard cannot be pulled free from or knocked loose from the pipe without loosening the screws.

Abstract: A filtration apparatus for installation in a catch basin vault is described. A perforate support plate includes a retractable basket that lies below an opening in the support plate and is positioned below a manhole. Water flowing into the system flows onto the support plate and into the basket, which traps debris. The basket is slidable from an in-use position where the basket is positioned to screen debris flowing into the vault, and a cleanout-position in which the interior of the vault is accessible so that the vault may be cleaned. When the vault needs to be cleaned, the manhole cover is removed to allow workers to have access to the interior of the vault. The workers may clean out the basket, and then slide it out of the way so that they have access to the vault interior.

Abstract: A cover for a drain. The cover may be used with roof drains or other drains and allow for fluid collection into the drain even with buildup of debris around or on the cover. The cover may have a lower portion with a large area extending outwardly at a small enough angle with respect to the horizontal to allow debris buildup thereon. An upper portion may be connected to the lower end and may be more vertically-oriented than the lower portion. Openings in the upper and lower portions allow for fluid drainage therethrough. Drainage occurs even with debris buildup around or on the cover.

Abstract: Systems and methods for treating water passing through a catch basin may include filters. In some embodiments, the filter(s) can have a plurality of regions with different nominal flow rates.

Abstract: The present invention discloses a filtration device for use in municipal and industrial sewer systems. In one embodiment, the instant invention comprises a device that filters runoff, preventing unwanted chemicals and debris from entering the sewer system. The device comprises a sewer seal that forms a liquid seal to trap hydrocarbons, such as oil, and prevent odors from leaking from the sewer system, while still allowing water to flow through the system. The trap is removable, allowing for easy cleaning, replacement, and maintenance.

Abstract: A weir grate (100?) comprises a base tray (112) having a plate (120). The plate (120) comprises an upstanding wall (121) arranged to form a periphery of the plate. The plate further comprises a lip (180, 180?) that projects laterally from and around an in-use upper end of the peripheral wall (121). An infill tray (116) may be positioned in the base tray (112).

Abstract: A threshold drain for connecting to a drain system and collecting an incoming flow of water from a predetermined direction across a threshold at the installation site. The drain includes a catch pan with portions defining a pan outlet. A flange pipe is coupled to the pan outlet for the purpose of connecting the threshold drain to the drain system. A grate is received within the catch pan and includes transverse webs and longitudinal webs. The transverse webs extend parallel to one another along the width of the catch pan and are spaced above the pan bottom wall. The longitudinal webs extend parallel to one another along the length of the catch pan and are supported by the transverse webs above the pan bottom wall in a fixed orientation. The fixed orientation is inclined toward the pan side walls adjacent to the incoming flow of water.

Abstract: An above grate based inlet filter system for erosion and sediment control comprises a natural fiber filter mat configured to extend beyond the perimeter of the grate and a securing mechanism, such as magnets, configured to securing the filter mat around the perimeter of the grate. The system may include a filter berm secured in vicinity to the mat, and a rectangular array of magnets coupling the filter mat to the grate. The natural fiber filter mat may effectively be a coir fiber filter mat extending beyond the perimeter of the grate, wherein the coir fiber filter mat is formed of vertically aligned coir fibers. The optional filter berm may be effectively formed as triangular in cross section and formed of 100% reticulated polyether foam and formed to be at least 3? in height.

Abstract: A system and method for treating liquid runoff from bridge decks or other types of roadways are provided. The system includes vertical scuppers positioned at low points along a length of a bridge deck. Each scupper has a removable tube fitted inside the scupper with a filtration media for treating liquid runoff such as stormwater. During rainfall events, liquid runoff gravity flows downward through the tubes and the filtration media inside the tubes so that the liquid is treated before being discharged to the environment. The tubes can be removed to periodically replace the filtration media.

Abstract: A device for installation, maintenance, and/or removal of a catch basin hood and/or a catch basin trap; the device comprising a shank connecting a handle on one end and jaw-like arms on an opposite end, wherein the handle end of the shank further comprises a lever capable of actuating a snap-action installation of a catch basin trap.

Abstract: An underground water-storage system that includes a sump having a base and sidewalls that cooperate to define an open-topped box that defines a reservoir, a plurality of plastic water matrices each defining a void space for receiving water, and a lid. The sump and lid are formed of a reinforced geomembrane material and include welds and are prefabricated in a location remote from an installation site of the underground water-storage vault more than two days prior to installation.

Abstract: A trench drain with a trench body and a grate for use with a flush-threshold or low-threshold shower. The trench body is rectangular, with a drain hole positioned in the bottom. Front and back flanges extend from the bottom of the front and back sides for an absolute flush installation of the trench drain to the shower body and the bathroom flooring. The trench body may extend under the shower walls on each side. A grate fits into the top of the trench body onto a lip or edge on the interior of the front and back sides. Protrusions may extend inward to help provide support and stability for the grate.

Abstract: A floor drain (10; 60; 70) comprising a channel body (14; 90) defining a drain channel (24) and having a drain opening (26), a frame (16; 62) defining a receiving opening (32) which can be inserted at least partially into the drain channel (24) and a cover (18) that can be inserted into the receiving opening (32) of the frame (16; 62), in particular in the form of a grate, at least one spacer (20; 64; 72; 87; 96) being provided for adjusting a distance between the channel body (14; 90) and a substrate and/or for adjusting the distance between the channel body (14; 90) and the frame (16; 62), the at least one spacer (20; 64; 72; 87; 96) being formed with infinite height adjustment.

Abstract: A rectangular channel is cut into a contoured concrete curb along a street to expose an end of ground drain pipe. Sealing fill material is applied to portions of cut surfaces of the rectangular channel. A curb drain modular insert that is placed into the rectangular channel has a molded body that is formed to have a rear surface, bottom surface and lateral surfaces that are generally planar. The lateral surfaces are generally parallel to each other. Each lateral surface, rear surface and bottom surface being generally perpendicular to each other for being placed into the rectangular channel cut into the contoured curb. The molded body has a contoured top surface that conforms to portions of the contoured curb that are adjacent to the rectangular channel. A horizontal bore is formed in the molded body from the rear surface through the top surface to conduct ground water.

Abstract: The ground water collection system is a filtering system for removing debris from ground water prior to drainage into a sewer line. The ground water collection system includes a basin having a drainage outlet formed through at least one sidewall. A filter shell is removably inserted within the basin, and a filter basket is removably inserted within the filter shell. A funnel member includes at least one funnel sidewall formed from mesh and opposed open upper and lower ends. An angled rim extends about the open upper end for funneling ground water through a central portion of the funnel member and into the filter basket. The funnel member is removably inserted within the filter basket so that the at least one funnel sidewall is positioned adjacent the open upper end of the filter basket. A grate removably covers an open upper end of the basin.

Abstract: The invention provides structures, methods, and assemblies for processing fluid entering a treatment area. The invention also provides methods, apparatuses, and additional structures that are useful for managing storm water flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems. One or more flow diverter pans are installed at one or more inlets of a treatment area, such as a bioretention treatment area or a storm water retention and detention system. The apparatus comprises a structural framework that can include a pan placed adjacent to an inlet of the treatment area, and internal walls extending upward from the floor of the pan and at least partially framing a bypass opening adjacent to the floor. Inlet and outlet openings of the pan define a primary flow route for fluid passing through the pan and to the surface of the treatment area. Inlet and bypass openings of the pan comprise a secondary flow route for fluid passing through the tray.

Abstract: A manhole cover assembly is adapted to be received in an opening in a frame enclosing a vault chamber. A manhole cover is fit into the opening. A pair of lugs are mounted to an underside of said manhole cover on opposite sides thereof. Each lug has a portion projecting radially out in a first position so as to engage a fixed feature of said frame. At least one of said lugs is connected to a pivotable member having an upper end projecting up through said manhole cover so that said upper end is engageable to be able to be rotated and cause rotation of said lug therewith between the first position and a second position with said lug not projecting radially out such that the lug radially clears said fixed feature of said frame to allow said manhole cover to be moved up and out of said frame opening.

Abstract: A bathtub system, including a tub with a bather access opening in one sidewall and a door mounted on that sidewall. In the closed position, the door is adjacent the access opening, and in the open position the door is substantially clear of the access opening. The system includes a gray water reservoir under the tub of approximately the capacity of the tub and which can be connected to a sewer system. A high capacity toroidal tub drain conducts water from the tub into the reservoir by gravity alone very quickly.

Abstract: Missing covers on pipes of a pool circulation system can create a hair and limb entrapment hazard for swimmers. The present invention provides pipe insert with a cylindrical body having a plurality of fins that extend into the cylindrical body to prevent the entrapment of limbs in the pipes of the pool circulation system. The fins further comprise a geometry that easily sheds hair strands to prevent hair from getting trapped in the pipe.

Abstract: An air conditioner drainage system has a housing in a cylindrical configuration positionable in a hole. The housing has a side wall with a closed bottom and an open top. The side wall is imperforate over the majority of its extent and has a plurality of wall apertures there through. A plurality of stones positionable within the hole beneath the bottom of the housing and laterally spaced from the wall apertures is adapted to provide widely extended dispersion of water from the housing.

Abstract: A stormwater treatment device has an annular outer portion and an annular inner portion positioned at least partially within the annular outer portion, the annular inner portion offset from the annular outer portion to define a channel between the annular inner portion and the annular outer portion. A flow conduit within the annular inner portion connects to an inlet and has a plurality of openings within the inner portion. The annular outer portion has an outlet connecting to the channel.

Abstract: A reusable, catch basin filter installable by one person into a catch basin. A blank of filter material is foldable to form a skirt with a central opening and having the shape of a flattened tube. A filter trap filter depends from the skirt. The hollow interior of the trap communicates with the central opening of the skirt. A flat, wire insert inserts into the skirt through an open, first end of the skirt. When installed in a catch basin, the wire insert prevents the filter from slumping as material accumulates within the filter trap. Upstanding fabric loops permit lifting a full or partially full filter out of a catch basin by carry poles or the forks of a fork lift truck inserted through the loops. After removing retained matter from the filter and cleaning the filter trap, the filter is ready for reuse.

Abstract: A securable drain screen is provided having a rectangular frame, a lockable screen door, and upstanding screen sidewalls forming a rectangular trap with an open upper that is adapted to block large debris from entering a drain and clogging the same when deployed. Along the perimeter of the frame and positioned against each sidewall exterior surface is an extendable footer element that is threadably attached thereto and extendable outwards for bearing against the interior surface of a drain. The footers bear against the drain interior and securably position the assembly within the drain, while the lockable screen door therethrough is hinged for access through the device when snaking the drain. The hinged door includes a padlock latch for securing the door in a closed position, whereby only authorized users can remove the screen from the drain once deployed.

Abstract: The invention concerns a cover element for covering an opening in an in particular horizontal surface of a drainage body, with an edge region which is configured to support the cover element on the drainage body, and with a cover region which has a grid-like or perforated structure with supporting elements. It is distinguished in that the supporting elements have a thickness increasing in the vertical direction starting from the edge region in the direction of the regions remote from the edge, such that the cover element has a substantially plano-convex outer contour.

Abstract: A fire service elevator has an elevator cage, which includes a cage roof, wherein the cage roof has a seal in which at least one drain is arranged. The drain is so arranged in the seal that extinguishing water collecting on the cage roof in the case of a fire flows away from the cage roof substantially only via the drain.

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: The invention provides structures, methods, and assemblies for processing fluid entering a treatment area. The invention also provides methods, apparatuses, and additional structures that are useful for managing storm water flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems. One or more flow diverter pans are installed at one or more inlets of a treatment area, such as a bioretention treatment area or a storm water retention and detention system. The apparatus comprises a structural framework that can include a pan placed adjacent to an inlet of the treatment area, and internal walls extending upward from the floor of the pan and at least partially framing a bypass opening adjacent to the floor. Inlet and outlet openings of the pan define a primary flow route for fluid passing through the pan and to the surface of the treatment area. Inlet and bypass openings of the pan comprise a secondary flow route for fluid passing through the tray.

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: Making a water permeable traffic bearing system includes preparing a compound water permeable base in contact with a native substrate, and installing a drainage system having a plurality of elongate drainage joints over the prepared water permeable base. Each of the drainage joints defines a plurality of vertical drainage conduits opening at upper and lower sides and in fluid communication with a storage volume defined by the water permeable base. Making the water permeable traffic bearing system further includes forming a segmental mat having a plurality of water impermeable surface pads abutting the plurality of drainage joints, at least in part by filling voids extending horizontally between the drainage joints with a curable paving material, and curing the paving material within the voids, in contact with each of the water permeable base and the drainage joints.

Abstract: A drain system, in an elevator system, is an open system wherein extinguishing water penetrating through a shaft door sill having bores meets a catch plate arranged underneath the shaft door sill and can be substantially discharged along at least one shaft wall.