Abstract: Filtration device comprising an inlet for the supply of the liquid to be filtered and means for holding a filter crossing the flow path beyond the inlet. The inlet opens into an annular intermediate passage which narrows down in the flow direction to an annular slit. The inlet opens into the annular passage in a tangential direction. The device comprises a support screen for support of a removable filter, and a dome leaving a small gap between its outline and the support screen when it is positioned in the support screen.

Abstract: A strainer basket is used in conduits or fluid systems and includes a non-metallic strainer basket in which a bio-cide is disposed to combat algae and fungal buildup along the surface of the basket and/or in the openings of the basket.

Abstract: Filtration method and device for filtering solid contaminants from a stream of a flowing fluid such as internal combustion engine intake air. An imperforate housing has a tubular inlet exiting at its downstream end into a conically divergent first wall section terminating in a maximum diameter apex. A convergent second wall section terminates at a housing outlet opening of greater diameter than that of the housing inlet. A perforate filter element disposed within the housing conical portions has an exterior configuration generally complimental to the housing interior, and thus has a first generally conical divergent section, and a second generally conical downstream section convergent from a maximum diameter apex of the filter element and defining the filter device outlet. The housing and filter element define therebetween first and second frustoconical annular fluid flow chambers of successively diminishing cross-sectional radial thickness in the direction of downstream fluid flow.

Abstract: The invention relates to a filtration system for filtering out particles, like molecules or proteins. The filtration system comprises a filter body (1) having a radial symmetry, which comprises a filter element (14) also having a radial symmetry, through which the liquid to be filtered is pressed from the outside in. A substantial part of the liquid to be filtered is directed tangentially alongside the filter surface, as a result of which the filter surface can be used longer before it will block. The filter element (14) comprises an adsorptive matrix, like a resin, to which the particles to be filtered are adsorbed. The filter element (14) is implemented as a cartridge, thanks to which the filtration system can be cleaned easily and fast, so that it can be used immediately for filtering out other types of particles.

Abstract: The invention described herein is drawn to a hollow cylindrical filter for use with a suction canister including a first portion having an open end and a first wall thickness, a second portion having a closed end and second wall thickness less than said first wall thickness, and an elongate central chamber having a substantially uniform diameter along its length. The filter is composed of a composite material including a porous plastic material and material adapted to increase the viscosity of a liquid coming into contact therewith. The filter is constructed to accommodate the changes associated with air flow velocity and shear force across the filter material as the fluid level in the canister rises, and automatically shuts off the vacuum to the interior environment of the suction canister.

Abstract: A self-cleaning, back-washable filter apparatus and method for use with a pumping apparatus which is lowered into a well casing. The filter apparatus includes a filter basket having a manifold with several tubes extending therefrom. A filter sock encases at least a portion of the filter basket to block sand or other solid particles from entry into the pump intake. Pressurized gas or fluid is directed to the manifold and then through perforations or jets distributed along the length of the tubes. Bursts of the pressurized gas are directed from the perforations or jets to the interior of the filter apparatus and then sprayed from the perforations or jets in an outwardly direction against interior surfaces of the filter sock. Air or fluid bursts from the perforations impinge upon the interior surfaces of the filter sock and dislodge or expel entrapped particulate material.

Abstract: A portable hand-held blood sampling device having a self-filling capability includes a blood separation filter. The filter has a plurality of pores sized to permit passage of selected blood constituents such as blood plasma through the device. The device has a separated blood conduit that extends beyond the outlet of the device and is shaped for easy penetration into a self-sealing septum of a blood analyzer. An annular shield extends from the device outlet beyond the conduit to prevent inadvertent contact of the conduit by a user.

Abstract: A filter for a spa or pool, having a filter body which receives a filter bag having a sheath encompassing the exterior of the filter body and a pocket extending inwardly from the front end of the sheath into the filter. Operation of the spa water circulation system draws spa water into the filter bag pocket while concurrently spa water is drawn transversely through the filter bag sheath and auxiliary spa water openings into the filter body. An O-ring encircles the upper portion of the filter bag to releasably retain such bag to the filter body during operation of the spa water circulation system.

Abstract: A one-piece filter cartridge is formed by inserting an open ended cylindrical screen and an end screen for the cylindrical screen in a mold and overmolding with engineered resinous material to form spaced annular and axial support ribs for the screen material. The cartridge is suitable for use in an hydraulic circuit for filtering bi-directional and radial flow without backwashing trapped particles from flow in one axial direction. One of the ribs has an annular groove for a seal ring for sealing about the cartridge upon insertion in a flow passage.

Abstract: A pressure vessel comprises a top wall, a bottom wall, a side wall extending between the top wall and the bottom wall, and a chamber formed by said walls, an inlet port extending through one of the walls for introducing fluid to the pressure vessel, an outlet port extending through one of the walls for removing fluid from the pressure vessel, a pressure gradient member located within the chamber of the pressure vessel through which fluid passing through the pressure vessel flows as the fluid passes through the pressure vessel, the pressure gradient member including an outlet port, and a flexible resilient tube attached to and extending between the outlet port of the pressure gradient member and the outlet port of the pressure vessel for mounting the pressure gradient member within the chamber formed by the walls of the pressure vessel and for connecting the outlet port of the pressure gradient member to the outlet port of the pressure vessel and for providing substantially uniform support of a load on the pre

Abstract: A filter element for end face inlet formed of triangular channels which are alternately closed such that the fluid to be filtered must pass through the filter material in order to flow from the inlet side (22) to the discharge side (23). The channels are formed by alternating flat layers (17) and folded layers (18), whereby all sides of the inlet channels face a discharge channel. A particularly high filter efficiency is thereby achieved such that a large filter surface area and a high filter capacity are attained with a relatively small structural volume. The filter can be used, for example, as an air filter for various air filtration applications.

Abstract: A strainer basket is used in conduits or fluid systems and includes a non-metallic strainer basket in which a bio-cide is disposed to combat algae and fungal buildup along the surface of the basket and/or in the openings of the basket.

Abstract: An debris-capturing apparatus having a fluid-pervious wall, an attachment portion attachable to the outflow port of a pressure-cleaner device, and a collapsible inflow tube that is substantially opened and made erect by the inflow of fluid but otherwise axially collapsed and thereby closed so as to block reverse flow of debris through the outflow port. The erected inflow tube preferably has cross-sectional flow areas along its entire length approximating the cross-sectional flow area of the outflow port. The debris-capturing apparatus is preferably integrally formed such that the inflow tube is a turned-in extension of the attachment portion.

Abstract: Spent pyrophoric reaction catalyst from a reaction mixture is removed safely, cheaply, and rapidly using a single plate pressure filter. After hydrogenation, the reaction mixture is decanted, the desired hydrogenation product is removed, and catalyst-rich material which settles at the bottom of the vessel is delivered to a single plate pressure filter fitted with a filter bag 40 of permeable material. The spent catalyst is retained in the filter bag 40 and stored under water awaiting recovery. The filter apparatus 1 comprises a container having a domed base 2, a generally cylindrical sidewall 3 terminating in an upper rim 4 closed by a lid 5 having lifting lugs 6. The lid 5 is fixed in pressure-tight engagement with the sidewall 3 by flange engaging screw clamps 7 and an embedded polytetrafluoroethene gasket 8. The filter bag 40 is held in position by a band 11 and may be readily released for removal of the spent catalyst material. The bag 40 may be reused.

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 filter assembly (10) for guttering down pipe (12) comprising a hollow body (13) having an internal base (24) and a conical filter (14) located within the body above the base and through which all the water must pass. The body (12) having a pair of opposed couplings (18, 21) for connection into a down pipe (12) and the filter (14) is arranged with its apex directed upwardly in use.

Abstract: Devices and methods for cell harvesting are disclosed. More particularly this invention relates to devices and methods for enabling the formation of a dispersion of cells from tissue for medical or research use. This invention provides a rapid method for cell isolation thereby reducing the time and costs associated with the production of autologous cells where required, for example, for tissue engineering in the operating theater or in research. Alternately this invention may be used to separate a cell dispersion containing cells of varying sizes or types from a predigested tissue dispersion. Also a kit is disclosed which provides the basic components of the device and instructions on how to accomplish the use of the device.

Abstract: A liquid filter or cartridge is disclosed, in which the filter bed is divided into multiple, parallel filter beds in a single filter housing. The divided bed system is preferably used for granular media such as activated carbon that is slightly hydrophobic. This compartmentalization of media into separate beds improves media utilization, which results in higher efficiency filtration/treatment and longer filter life, compared to a conventional single-compartment filter in the same outer housing. Preferably, many compartment walls are disposed axially in a gravity-flow or other low-pressure-condition filter, and media is loaded in-between all the walls. Water flows into and through each separate bed before exiting the filter, and each bed has a small diameter, and low bed diameter to bed length ratio, compared to the overall filter housing diameter and ratio, thus, providing a plurality of beds that encourage a high percentage of the media in each separate bed to be wet and to perform filtration.

Abstract: A water circulation and filtration system for maintaining a high level of water quality in aquariums is provided. Preferably the system is used in conjunction with a gravel screen, which is located just above the base of the aquarium. The inventive system comprises a vertical water flushing tube connected to a water supply or a reverse power-head pump and having an opening positioned in proximity to the base of the aquarium and below the gravel screen. A water circulation tube and water draining tube, each of which have openings located immediately above the base of the aquarium and below the gravel screen, are provided at the opposing end of the aquarium. The water circulation tube is connected at its other end to a standard filter, while the water draining tube is connected at its other end to a hose leading to a sink, drain or external container.

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

Abstract: A laminate product is provided. The laminate product includes a first layer of porous expanded polytetrafluoroethylene membrane, and a second layer of woven fabric of polytetrafluoroethylene containing yarn. The membrane preferably has an air permeability of at least 0.01 cfm/ft2 at 0.5 inch water gauge, and a thickness of greater than about 0.5 mil. The woven fabric preferably has a weight of between about 15 ospy and about 30 ospy. The laminate product can be sewn to provide a filter bag for use in pulse jet filter applications.

Abstract: The invention relates to a fuel filter for an internal combustion engine, comprising a filter housing (1) consisting especially of metal, and a filter element (6) and a pressure-regulating valve (7) located in said filter housing. The aim of the invention is to ensure that no noise originating from the pressure-regulating valve (7) is emitted. To this end, the pressure-regulating valve (7) is mounted in the filter housing (1) in such a way that vibrations are dampened.

Abstract: A device is described for mechanically cleaning fluids, especially for [cleaning] the cooling water that enters a heat exchanger, having a pipe segment (12) as housing, a sieve element (20) that essentially covers the cross section of the pipe, and a suction device (20) on influx side (22) that is capable of moving around an axle (18), the purpose of the device being to aspirate the surface area of sieve element (16) and in this manner clean it, wherein, according to the invention, sieve element (16) forms a partially cylindrical casing having a cylindrical axle (56) perpendicular to axle (24) of pipe segment (12), wherein the open part of cylindrical casing (16) is arranged toward influx side (22) (FIGS. 1, 2).

Abstract: A filtering chamber for a set for the administration of fluids is provided. The chamber includes a housing providing a passageway for the fluid in the administration set. Within the chamber is a filter of screen which filters the fluid flowing through the housing. The filter or screen is attached to the housing during molding of the housing without the use of bonding agents, resulting in a chamber component which may be produced automatically and economically.

Abstract: The invention relates to a filter device comprising a filter housing (10), a filter inlet (12), a filter outlet (14), and a filter element (16) which divides a filter area (18) into two partial areas (20,22). At least one of the partial filter areas is conical in form resulting from the fact that the cross-section of one partial area (20) is tapered from the filter inlet (12) to the filter outlet (14). Said partial areas are separated from each other by said filter element. This results in an optimum residence time distribution inside the filter device at a uniform flow rate, which is particularly useful for highly viscous fluids such as polymer melts or similar.

Abstract: A toilet water-line filter (10) that is designed to protect a toilet's fill valve (62) from the intrusion of potentially damaging debris such as rocks, vegetation, etc. The filter (10) is comprised of a housing (12) and an internal filter (34) which consists of a mesh staining element (36). The filter (10) is attached between the toilet's fill valve (62) and a typical, flexible, water line (66). Debris that would normally pass into the fill valve (62) becomes trapped in the mesh staining element (36), from where the debris is easily removed.

Abstract: A filter having a substantially cylindrical or slightly tapered body design which has a plurality of elongated apertures formed therethrough. Each aperture is defined side to side by a pair of elongated, wedge-like rib members disposed one on each side of each aperture, and top to bottom by a pair of cross members which present a substantially square top side and an angularly declining bottom side. The end effect is a substantially rectangular entry aperture for fluid flow with the exception of the declining bottom side which promotes smooth, low resistance entry flow. The present invention is also directed to a method of manufacture of filters having the above-described characteristics. In particular, the preferred method involves an injection molding process in which a molten plastic (such as high-density polyethylene, HDPE) is injected into a two-part mold.

Abstract: A filter for a fuel injection device, comprising a plurality of filter elements arranged within a housing such that, in use, fluid is directed through clearances of predetermined size between respective mutually adjacent ones of the elements for preventing the passage of oversized contaminant particles carried in the fluid.

Abstract: A paint strainer is disclosed for use with a paint container and a pickup tube. The paint strainer comprises a mesh bag having an elastic material surrounding the opening of the bag wherein the elastic material engages the rim of the container to hold the bag in place. The bag further includes an aperture formed adjacent to the rim of the container which receives the pickup tube surrounded by an elastic band.

Abstract: The invention is an improved structure for a pipe joint filter. The pipe joint equips a water-blocking valve on the top, an extruded joint structure with male screw threads on the lateral side, and a ring pipe at the free end of the pipe joint. A washer is laid between the pipe joint and the ring pipe to prevent water leakage. The ring pipe is comprised of a screw nut on the free end of pipe joint and a tightened pipe interlocked at the inner rim of a screw nut. Furthermore, a convex edge is extended from the top of the tightened pipe. From the inner angle of the convex edge heading inward, there is a stopper edge to exactly compress the ring edge of a filtration net against the stopper edge of a tightened pipe for proper fixture of the pipe joint. Thus, a filtration net can be promptly and easily fixed between a pipe joint and a ring pipe to achieve water filtration effect.

Abstract: A drip chamber (1) for body fluid and discharge kits, includes a hollow tubular external closure (2) with a connector (4,5,6) formed at a first end for an outward fluid-flow connection to an external circuit and a second open end (3) arranged opposite to the first end, and a monolithic filtering element (7), formed of a cylindrical filtering body (8) with a first end supported by the connector bottom (4), and of a plug (10) with an inward fluid flow tube (11) monolithically attached to a second end of the cylindrical filtering body (8) and hermetically attached to the second end (3) of the hollow tubular external closure (2).

Abstract: A pipe line strainer has a strainer body having an inner body wall surface and defining a flow passageway, and further defining a strainer inlet in communication with the flow passageway and a strainer outlet spaced from the strainer inlet along the flow passageway in a direction for fluid flow, and a strainer basket disposed within the flow passageway between the strainer inlet and the strainer outlet. The strainer basket has a strainer basket wall defining a plurality of through apertures of predetermined cross dimension for flow of fluid from the strainer inlet toward the strainer outlet, the strainer basket wall dividing the flow passageway into a first region of flow upstream of the strainer basket wall and a second region of flow downstream of the strainer basket wall.

Abstract: A bone filter trap for harvesting autogenous bone and cell marrow and blood elements collected by an aspirator during medical and dental bone surgical procedures. The bone trap is disposed between the aspirator suction system and the aspirator tip. The bone filter or trap includes housing through which an air flow induced by the suction system is allowed to pass via inlet and outlet openings in the housing. A cylindrically-shaped mesh is longitudinally disposed therein. The cylindrically shaped mesh is open at its top end (facing the inlet opening) and is fitted with a removable solid base at the distal outlet end, such that the induced air flow carrying liquids, solids and gases from the patient surgical site is forced to pass through the mesh. The mesh is sized such that only autogenous bone and cell marrow and blood elements are trapped in the mesh. Upon completion of the medical procedure, the cylindrically-shaped mesh is removed from the inlet and outlet housings.

Abstract: A water filtration assembly (10) includes a first end cap (34) covering the first end of a housing (12) and a second end cap (36) covering the second end of the housing (12). The end surface (40) of each end cap (34 and 36) has a L-shaped cap recess therein with an axial leg (42) and a transverse leg (44) extending about the end face. A projection (30) at the first end of the housing (12) is disposed in engagement with the cap recess of the first end cap (34) as the end surface (40) of the first end cap (34) abuts the recess end surface (28) at the first end of the housing (12). In the same fashion, a projection (30) at the second end of the housing (12) is disposed in engagement with the cap recess of the second cap (36) as the end surface (40) of the second cap (36) abuts the recess end surface (28) at the second end of the housing (12). The end caps (34 and 36) are formed with a two sided shoulder (46) filling the corner between the axial (42) and transverse (44) legs of the cap recess.

Abstract: A hand held spray spout (10) has a basket filter (26) seated against an anti-siphon valve (24) proximate the base end of a water passage (12) within the spout. The filter has a plurality of protrusions (50) mounted within the inner diameter of the valve (24) and is also biased against the rim (52) of the valve. The filter has prongs (56) extending upstream from the basket section (40) to abut and be biased by a supply hose end which is mounted to the base end (14) of the hand held spray spout (10).

Abstract: A storm sewer filtering apparatus is provided having a filter bag forming a rectangularly shaped substrate retaining volume. A flat bottom surface remains at the bottom of the filter bag and forms the majority of the filtering surface. Geotextile fabric forms a filtering media and incorporates a plurality of woven webbing reinforcement straps to provide additional strength to the finished filter bag. The woven webbing is affixed to the geotextile filtering media by conventional stitching methods, and extends beyond the edge of the respective sidewall for attachment to a drain grate. Rigidly affixed to each terminal end of the attachment strap is a retaining block that is linearly elongated and made of a rigid material, such as wood, metal, or hard plastic.

Abstract: A system for removal of water from a hydrocarbon fluid, such as a fuel emulsion in a tank or flowing through a conduit that is used from time to time for delivering fuel to a household or consumer device, including a filter with a super-absorbent, hydrophilic, oleophobic substance bound with a medium to prevent separation and a support body structured to hold the filter, the filter being removable in order to be cleaned and reused or to be discarded and replaced by another filter.

Abstract: A combination coolant filter and pressure regulator for an automotive engine's cooling system is configured to be spliced in line with the coolant supply line to the heater core. The filter has a housing and a filter element that is moveable within the housing between a first position opening up communication through the housing and a second position restricting communication through the housing. A spring biases the filter element toward its first position. Normal coolant flow through the housing passes through the filter for removal of entrained contaminants. Under conditions of high coolant flow and thus high pressures, the filter element moves against the bias of the spring toward its second position restricting coolant flow and protecting the heater core from damage due to coolant overpressure.

Abstract: A fuel filter assembly having a main body defining a cylindrical cavity that can receive a cylindrical fuel filter element. One end of the main body has a nipple that is adapted to be attached to a fuel line. The other end of the main body has an opening that is sized so as to permit the fuel filter element to be positioned within the cylindrical cavity. A compression member is also adapted to be positioned within the opening so as to seal the opening when the fuel filter element is positioned within the cavity of the main body. The compression member includes a second nipple adapted to attach to a fuel line so as to allow fuel to flow through the central cavity. A threaded collar engages with the main body so as to retain the compression member in the opening of the main body. The fuel filter element can therefore be replaced by simply unthreading the collar and removing the compression member and extracting the existing fuel filter.

Abstract: A filtering apparatus for removing solid particles from a liquid which includes a pressure-tight cylindrical housing with a filter assembly coaxially mounted in the housing. A liquid inlet is provided at the upper end of the filter housing and is positioned for tangentially injecting the water to be filtered into the interior of the cylindrical housing for imparting a swirling cyclonic movement to the liquid to be filtered. The liquid is filtered to the interior of the filter assembly and then drains from the bottom of the assembly through an outlet. A drain is also provided in the lower end of the housing for draining off accumulated solids and a wash-down apparatus is provided in the upper end of the housing for directing a wash liquid under pressure against the filtering surface for washing the filtering surface down.

Abstract: A universal filter insert apparatus 10 for a water purifier includes a container insert 12 having substantially cylindrical or conical side walls 11 and an annular lip 17 at an upper portion thereof. A plurality of resilient sealing members 36 are stacked about the upper portion of the container. Each of the resilient sealing members includes (i) an internal sealing diameter 50 adapted to engage the container annular lip and (ii) a uniquely-shaped annular sealing flange 38 for engaging a filter receiving aperture 54 of a particular water purifier 52. At least one guide slot 22 extends along a portion of the bottom of the container insert. A granular filter medium is placed within the container insert and sealed therein with a container lid 30. The container lid has a plurality of apertures 34 sized to let water pass through and also includes a raised handle 32 for ease of insertion and removal of the universal filter insert.

Abstract: A hand held spray spout (10) has a basket filter (26) seated against an anti-siphon valve (24) proximate the base end of a water passage (12) within the spout. The filter has a plurality of protrusions (50) mounted within the inner diameter of the valve (24) and is also biased against the rim (52) of the valve. The filter has prongs (56) extending upstream from the basket section (40) to abut and be biased by a supply hose end which is mounted to the base end (14) of the hand held spray spout (10).

Abstract: A white blood cell-removing device has a bag-shaped housing made of soft resin, a white blood cell-removing filter member partitioning the inside of the housing into an inlet side blood chamber and an outlet side blood chamber, a blood inlet port positioned at one side of the housing and communicating with the inlet side blood chamber; and a blood outlet port positioned at the other side of the housing and communicating with the outlet side blood chamber. An inner surface (the outlet side blood chamber) of the bag-shaped housing is a unevenness surface. The white blood cell-removing filter member has a filtering part and a non-filtering part formed on the entire periphery of the filtering part.

Abstract: A spiral wound type membrane element is formed by winding independent or continuous envelope-like membranes around the peripheral surface of a water collection pipe and interposing raw water spacers between the envelope-like membranes. When running, raw water is supplied from at least the periphery side of the spiral wound type membrane element and permeate is taken out from an opening end of the water collection pipe. In back wash reverse filtration, permeate is introduced from the opening end of the water collection pipe and permeate guided out from the peripheral surface of the water collection pipe is discharged from at least the periphery side of the spiral wound type membrane element.

Abstract: A method and apparatus for melt spinning molten polymeric material into filaments, preferably embodied in the form of a spin pack assembly, utilizes an annular polymer filter formed of a screen mesh material to have a U-shaped axial cross-section defining an open end oriented to face upwardly for receiving polymer within the annular interior of the screen to flow outwardly therefrom to a downstream spinneret for extrusion. The filter eliminates any need to utilize sand or other filter material contained by the screen as a primary or auxiliary filtration medium and enables effective polymer flow substantially through the entire surface area of the screen without stagnation of material flow.

Abstract: A filter cartridge, including a tubular filter element which encloses an interior space on the downstream, clean air side, is joined in the axial direction on one side to a side-face lid, forming a seal. In order to reduce pressure peaks which occur in the filter element on the clean air side, the lid has a diaphragm which is capable of vibrating.

Abstract: A low point drain for draining accumulated water from electrical conduit systems that are located in non-hazardous environments is disclosed. The drain includes a threaded coupling suitable for connection to a tapped opening in an electrical conduit, or a conventional "T" or elbow fitting or an electrical enclosure or junction box. The drain also includes an end cap attached to the other end of the coupling, a safety washer and a screen assembly that is retained within the end cap. The end cap has an interior lip that defines an opening through which the water may drain. The screen assembly includes a grommet that is held securely against the coupling end and a frustoconical screen that protrudes through the end cap opening. When the drain is installed at a low point in the conduit system, condensate that forms in the system flows out the drain aperture and screen by the action of gravity.

Abstract: A bilge water filtration system for removing petroleum-based liquid contaminants from the bilge water as it is being pumped from the bilge to a bilge water discharge outlet in the hull of a marine vessel, such as a boat or yacht. The filtration system employs filtration media enclosed in a modular unit equipped with a fill tube, such that media can be readily installed in the system, and then later removed to allow for subsequent destruction or recycling of the contaminants trapped by the media. The filtration system of this invention is adapted to be installed in-line with an existing bilge pumping system on boats and yachts of practically any size, and without requiring special modifications to the pumping system. In addition, the filtration system does not impede the operation of the bilge pumping system, but allows the flow bilge water to flow from the boat's bilge at conventional flow rates and with a minimal pressure drop caused by the filtration system.

Abstract: A connecting means for a water flow appliance, for example a hand shower, contains a connecting element connected to a water guide, for instance, a house water mains. Arranged in the connecting element is a sieve element which can be shifted between a sieve position, in which it acts a sieve, and a cleaning position in which it is possible to remove the particles retained in the sieve element. The sieve position is always assumed when a connection is made to the connecting means. When this connection is removed the sieve element can be translated into the cleaning position for example by water pressure. The water flow can be passed through said sieve element in the cleaning position preferably in the reverse direction so that said sieve element is back-washed.

Abstract: A debris trap assembly for use with downspouts connected to a rain gutter system. The debris trap assembly replaces the portion of the downspout from about waist height down to the drain tile connection. Rain water is carried by the downspout to the debris trap assembly where it flows through a strainer housing containing a strainer cup. The strainer cup accumulates the debris collected by the rain gutters and flushed down the downspout by the rain water. The strainer cup has a special shape that allows it to occupy nearly all the space in the housing while still being removable through an access opening to empty the debris from the cup. An indicator built into the strainer cup displays when the strainer cup needs to be emptied. To empty the strainer cup, it is first removed from the housing and then dumped in either the garbage or a compost pile. The strainer cut is then easily replaced into the strainer housing.