Abstract: An annular ring and cap that are positionable within a manhole or catch basin structure above the base of the manhole or catch basin to reduce the amount of debris entering into the manhole or catch basin. The annular ring may be positioned within the manhole or catch basin such that a flange of the annular ring is sandwiched between the base and support frame. When a final grade surrounding the manhole or catch basin is complete and the cover or grating is positioned above the support frame, the cap then serves as a secondary restriction thereby deterring access to underground conduits that are linked to the manhole or catch basin. A plurality of corrosion resistant locking members secure the cap against a ledge of the annular ring. The annular ring further has an inner edge of the ledge that includes first and second shoulder clearance indentations aligned opposite each other.

Abstract: A water collection trough has an edge arranged in the plane of a roof and a bottom, arranged with spacing from the edge, with an opening. The opening leads to a drainage pipe mounted down at the bottom of the trough. Two parallel plates are arranged spaced apart, a lower plate being fixed in the water collection trough and an upper plate being fixed above the edge of the water collection trough. The edge of the upper plate projects beyond the edge of the water collection trough in such a way that, to form a closed flow in the drainage pipe. The water to be led away is accelerated ahead of the edge of the water collection trough and, after a two-fold deflection of about 90.degree. in each case, ahead of the opening in the bottom.

Abstract: A skimmer cover for a secondary dispersement system orifice in a storm water catch basin prevents inflow of floatable materials, and especially hydrocarbons from motor vehicles, from entering the orifice. The orifice is defined in a neck extending spacedly above the bottom of the catch basin surface to carry the skimmer cover. The skimmer cover provides a top with a peripheral skirt diametrically larger than the neck and supported on the neck to depend therebelow to a point spacedly above the catch basin bottom surrounding the neck. An internal cylinder depends from the cover top within the skimmer cover skirt and defines plural spaced orifices to allow fluid passage therethrough and into the orifice defined by the neck. A depending fastening structure having opposed pivotal lever arms moved by a medial screw therebetween is carried by the skimmer cover top to allow releasable fastening of the skimmer cover within the neck orifice for positional establishment and maintenance of the skimmer cover thereon.

Abstract: Perlite particles, after being expanded and treated with a silicone have the ability to selectively absorb hydrocarbons while rejecting water on or in which the hydrocarbons may be present. A carefully designed cartridge having an apertured top and an apertured bottom permits runoff water to percolate through a body of particulate perlite so that the desired separation can be accomplished. The cartridge in which the perlite is contained is easily removed from a catch basin when the perlite has become spent. The cartridge may then be opened and the spent perlite removed, after which the cartridge may be refilled with fresh perlite and replaced in the catch basin.

Abstract: A roof drain including a grated, inverted, frusto-conically-shaped cover received in a roofing material clamp having a radial, upstanding, debris-discouraging flange. The cover and roof material clamp are demountably fixed to a flanged drain body and clampingly maintain roof material therebetween. The drain body is received by a flanged sleeve. The drain body and sleeve flanges clampingly maintain roof substrate therebetween by means of a nut threadingly interengaged with threads on the drain body which urges the sleeve toward the roof substrate.

Abstract: An inexpensive drain assembly for draining water from flat roofs, balconies, decks and other flat or low sloping surfaces that are covered with a water-tight single layer synthetic roofing and waterproofing membrane. The drain assembly includes a grate having a strainer and a connecting collar, a flanged boot that is contoured to fit snugly around the collar of the grate and is sealed via the flange to the synthetic membrane, and a pipe connector that connects the grate and contoured boot to a standard drain pipe. The flanged boot is made from elastomer that is identical to or compatible with and sealably attachable to the synthetic membrane. The elastomer and the synthetic membrane are made of materials selected from a group consisting of synthetic rubber, rubber-like materials, plastic, and plastic-like materials.

Abstract: A roof drain for draining rainwater from a roof. A bell-like strainer is supported by a compression/tension unit including resilient means, which unit is in turn mounted to a drainage sleeve that communicates with a leader. The strainer is secured to the drainage sleeve by a threaded bolt that passes through bores in the strainer and the compression/tension unit, and engages a nut received by the resilient means. Tightening the bolt moves the strainer downwardly into a substantially watertight fit with roofing membrane interposed between a skirt of the strainer and a collar on the drainage sleeve. The resilient means, which may be resilient material, a spring or the like, provides continuous tension between the strainer and the drainage sleeve.

Abstract: The floor drain comprises a drainage bowl (2) or outlet gutter with an upward facing inlet opening (4) and an outlet (5), comprises slots (9) or passageways having each a substantially vertical portion with a constant cross-section, and having each its entrance on a level with the inlet opening (4) and extends somewhat downwards and is adapted to be running to capacity by drainage of water from a floor.

Abstract: My invention relates to an improvement of a siphon head for use on a flat roof for a building having a recessed drain. The drain includes an inverted cup-shaped drain member with peripherally spaced elongated drain slots. The siphon head is comprised of a soft pliable elastomeric material including a relatively flat foot flange adapted to rest flatwise on a roof to be drained, and a dome shaped head portion centrally located and integrally formed with the relatively flat foot flange. The relatively flat foot flange extends outwardly in a relatively flat plane beyond the head portion and surrounding the head portion in all directions. The head portion is open on its top side providing an annular edge for nested engagement with the drain with a portion of the elongated slots lying below the edge, and other portions of the elongated slots lying above the edge. The edge is in snug nested engagement with the drain while the relatively foot flange is supported on the flat roof.

Abstract: The present invention relates to a roof drain structure comprised of a drain plate having an upstanding overflow port and a clamp ring used to secure an edge of the roofing substrate against the drain plate and around the overflow port. The clamp ring surrounds and physically cooperates with the overflow port to align several screw apertures and the clamp ring with several corresponding apertures in the drain plate. There are preferably at least two alternative drain plates having different size overflow ports, and a clamp ring that may be modified to fit either of the ports and still align the screw apertures. The preferred clamp ring has removable spokes that are left in place for use with a smaller overflow port and that are removed for use with a larger overflow port. The overflow port is preferably stepped to have a lower larger portion and an upper smaller portion so that the contractor can modify the overflow port in the field to accommodate different sized drain pipes.

Abstract: A drain trap apparatus is provided for preventing the passage of debris into a drain opening which includes a disposable filter and which allows complete drainage of the wastewater. The drain trap has an annular support member which is semi-permanently attached around the drain opening. A passageway extends radially through the support member so that water will be allowed to pass through the support member. A filter, preferably of a flexible plastic mesh material, is removably attached to the support member by a plurality of hook members, such as the hook portion of a hook and loop fastener.

Abstract: A floor drain and method for its installation, such floor drain incorporating: (1) a flange clamp ring with multiple weep holes, drain tubes with siphonage drain lines, and a tongued and grooved boss, and; (2) a permeable port protector, installed over the floor drain housing and the flange clamp ring, which prevents mortar and debris from entering and clogging drainage holes while allowing water to drain.

Abstract: An anti-vortex, flush-mounted floor drain for swimming pools consists of a main housing, which is in the form of a hollow cylinder of a first predetermined diameter A drain opening is located in the top of the hollow cylinder; and the edges of the top of the cylinder are mounted flush with the floor of the swimming pool. A downwardly sloped lip extends from the top edge of the main housing and terminates in a circular opening in the top of the main housing. A solid circular cover is centrally mounted in this opening in the main housing, and is movable toward and away from the opening in the main housing to vary the size of the water inlet from the pool between the edge of the circular cover and the edge of the opening in the main housing. A drain pipe is connected to the main housing for withdrawing water from the housing. The large circular cover at the center of the drain prevents a vortex from occuring as a result of the suction of water passing outwardly through the drain pipe in the drain housing.

Abstract: An apparatus for introducing filler material in a fluid carrier into a measuring chamber in rapid succession is described. The apparatus includes a delivery subsystem for introducing the filler material into the fluid carrier. The delivery subsystem provides the fluid carrier and filler material to a diverter subsystem which separates the stream into two separate streams. The two separate streams are directed into a rotating concentrator subsystem that separates the fluid carrier from the filler material and compresses the filler material. The filler material is further compressed and dewatered in a taper subsystem and drain subsystem. The filler material is then dispensed from the drain subsystem into a measuring chamber where it is cut by a knife plate that includes two blades with overlapping cuts. The apparatus is capable of introducing controlled weights or volumes of filler material into a measuring chamber at high speeds.

Abstract: An apparatus for introducing filler material in a fluid carrier into a measuring chamber in rapid succession is described. The apparatus includes a delivery subsystem for introducing the filler material into the fluid carrier. The delivery subsystem provides the fluid carrier and filler material to a diverter subsystem which separates the stream into two separate streams. The two separate streams are directed into a rotating concentrator subsystem that separates the fluid carrier from the filler material and compresses the filler material. The filler material is further compressed and dewatered in a taper subsystem and drain subsystem. The filler material is then dispensed from the drain subsystem into a measuring chamber where it is cut by a knife plate that includes two blades with overlapping cuts. The apparatus is capable of introducing controlled weights or volumes of filler material into a measuring chamber at high speeds.

Abstract: An elongated, conical cage of spaced-apart rods is disclosed, each rod having a first and secured to the apex of the cone, and a second end terminating in the open of the cone which is formed by a circular ring-shaped rod. The open end of the conical cage and the circular rod forming the open end are secured to a band preferably constructed of metal which forms a fixation device for securement to the exposed end of the pipe. Preferably, the rods forming the conical cage are spaced apart by approximately six inches, a distance which has been found sufficiently wide to enable debris to flow through and out of the apparatus, and sufficiently narrow to prevent entry of small animals such as beavers into the apparatus.

Abstract: The invention includes a drain guard and drain protection system. The drain guard includes a cross-sectionally L-shaped frame having a base and an upstanding sidewall extending therefrom. The upstanding sidewall has a plurality of spaced openings. The base may also have a plurality of spaced openings in communication with the plurality of spaced upstanding sidewall openings positioned relative thereto. The frame is of substantially greater perimeter than the perimeter of the enclosed drain opening. The drain protection system includes a surface layer having ballast spread therealong, a drain opening extending through the surface layer, a portion of the surface layer cleared of ballast, the portion outwardly extending from the drain opening to a drain guard of the above-described type.

Abstract: A shower strainer mounting assembly (10) comprises an elongated cast-in adaptor coupling (12) for being cast into concrete having a lower end portion (16) for receiving standard 2 inch pipe (24) and an upper portion end (18) with an inner diameter of at least 37/8 inches. A separate pan-mounting flange member (14) comprises a circular tubular portion (36) having a continuous round external surface of a size and shape for fitting snugly into the top of the cast-in adaptor coupling and an internal surface with a diameter of less than 3 5/16 inches but at least 2 11/16 inches in cross section and a flange portion (38) attached to the upper end of the tubular portion extending radially outward from an outer surface (40) thereof.

Abstract: An improved roof drain cover useful in minimizing the changes of comparatively large amounts of water backing up around the drain can be constructed so as to include primary and secondary rims serving as weirs located on a flange which extends around a centrally positioned grate. The primary rim is formed at the periphery of the flange and integrally therewith, while the secondary rim is formed adjacent the junction of the flange and grate and forms a channel with the grate. Notches are provided in these rims so as to permit water flow through them. The dimensioned rims are so that, as such inorganic particles accumulate against them, lighter organic material such as leaves will be carried by draining water over the rims and up against the grate.

Abstract: An adapter for pool drains, including a primary mounting frame secured onto the pool drain with a plurality of arms radiating inwardly and raised to interconnect the second mounting ring. There is further provided a grill work or second secured to the surface of the apparatus for defining a raised screening surface for screening any water flowing into the drain to prevent whirlpooling effect in the drain. Further, the apparatus is adapted for various size drains and is easily removable and set in place.

Abstract: A waste screen for roof drainage outlet located substantially in the plane of the roof consists of an outlet opening in the roof and a plate covering the opening having a circumference and vertical distance from the roof plane so that at least at dimensioning flow amount air is prevented from being sucked in beneath the plate edge and the gap between the plate and roof plane constitutes the outlet port. The water on its passage from the pitch to the outlet opening always passes through the outlet port, which ensures that in dimensioning cases the outlet opening and subsequent pipe are entirely filled with water. A screen extends about the circumference of the plate (4) and comprises a screen wall (7), which extends from the roof plane (1) to a plane above the plane through the circumference (circumferential edge) of the plate (4).

Abstract: A self supporting grate for a drain structure can be improved by including as part of the grate a mounting base sized and shaped to attach the grate to the drain structure. At least a portion of the grate is formed as a generally upwardly projecting wall attaching to and extending from the base. The wall includes a plurality of weirs capable of forming a variable flow fluid pathway to the interior of the grate for fluid disposal by the drain structure. The weirs are constructed so as to allow fluid at a first fluid level on the wall as measured from the base to flow at a first rate from the exterior of the grate into the interior grate and fluid at a second fluid level likewise measured along the wall from the base to flow at a second rate into the interior of the grate, with the second rate being different from the first rate. A guard lip is located on the mounting base peripheral to the grate to retard the flow of solid material over the guard lip and to prevent clogging of the grate.

Abstract: A roof drain receptacle for mounting on the roof deck of a roofing structure and including an upwardly opening drain body with an externally disposed apparatus for adjustably extending and supporting the drain body so that its open upper end is in the proper drain water receiving position relative to the top surface of the roofing structure.

Abstract: A tubular drain vertically positioned within the ground beneath the ground level in the vicinity of surface water and having a tubular drain cover-support member anchored in the surface ground layer with a tubular part of the drain cover-support means extending down into the tubular drain, so as to be axially movable relative thereto as a separately movable support element in annular disc form placed around the tubular part of the drain cover-support member so as to be axially movable relative to the drain while being guided by the upper part with it being anchored in the surrounding ground layer in a manner so as to be able to exert a downwardly pressing force from the underlying drain when relative movement is obtained between the drain and the supporting element.

Abstract: A new article of flexible and springy though rigid enough water impervious material provided with spikes or bristles or open web of crinkled filaments or rough indented openings to be installed around any conventional stopper for preventing hair, hairpins, or any other object carried away with the water flow during the taking of showers or washings or the like, from entering and clogging the drainpipes of bathtubs, lavatories and the like, through an entangling action carried out by said spikes or bristles or web or rough indented openings, and said article having a body which is shaped to be adapted to surround the lifted conventional pop-up stoppers or the like, of the drain control systems of bathtubs, lavatories and the like, and which may take any of several preferred cross section forms, such as for example, a hollow core elongated semicylindrical form which is integral with a flat imperforate lower portion or base, providing several preferred undersurfaces or a hollow core cylindrical form, or a vertic

Abstract: A self supporting grate for a drain structure can be improved by including as part of the grate a mounting base sized and shaped to attach the grate to the drain structure. At least a portion of the grate is formed as a generally upwardly projecting wall attaching to and extending from the base. The wall includes a plurality of weirs capable of forming a variable flow fluid pathway to the interior of the grate for fluid disposal by the drain structure. The weirs are constructed so as to allow fluid at a first fluid level on the wall as measured from the base to flow at a first rate from the exterior of the grate into the interior grate and fluid at a second fluid level likewise measured along the wall from the base to flow at a second rate into the interior of the grate, with the second rate being different from the first rate.

Abstract: A manhole cover support ring adapted to be placed within an existing manhole frame for raising the height of a manhole cover. A circular ring is formed by a generally vertically extending flange having an annular bar welded on its lower end which provides an inwardly extending manhole cover support ledge. The flange and bar are split at a common point on their peripheries. An expansion mechanism is pivotally mounted on and extends between the spaced ends of the bar formed by the split in the ring. The expansion mechanism includes a pair of eyebolts pivotally mounted on the spaced ends of the annular bar. The eyebolts each have a threaded shaft which is engaged in a respective threaded end of a tubular member. One of the threaded shafts has a right-hand thread and the other shaft is formed with a left-hand thread, whereby rotation of the tubular member in one direction will contract the ring sufficiently to place it within the manhole frame opening.

Abstract: A machine lubrication system including an oil-lubricant pressure source communicated with a reservoir means and a means for maintaining the working properties of the lubricant, wherein the latter means constitutes a porous piezoelectric ceramic filtering element, such as barium titanate, connected to a generator of electric oscillations and placed into a housing which inlet and outlet are separated by said element.

Abstract: The invention involves an adjustable drain control assembly for a bathtub or the like, comprising a cylindrical component having both end and side openings exposable within the tub when installed, and having a total flow capacity of the order of that of said cylindrical component, and a cap rotatably installed over such openings, the cap having corresponding end and side openings adapted to be simultaneously aligned with the end and side openings in the cylinder component, to permit of maximum drainage flow through the drain control assembly.

Abstract: A drain guard is disclosed having a tubular body with a funnel-shaped portion at its upper end. The tubular body has an annular recess extending about the inside periphery thereof proximate the bottom end of the guard. The recess receives a sealing grommet therein for sealing the space between a tube on which the guard is positioned and the inner periphery of the tubular portion of the guard. Stop lugs are positioned about the inner periphery of the tubular portion of the guard at the junction of the funnel-shaped end portion thereof for limiting the upward movement of the tube on which the guard is positioned through the drain guard. A liquid permeable seat is positioned on the funnel-shaped end portion of the drain to permit the ingress of water or other liquids with respect to the drain guard.