Abstract: The invention relates to a device for metering an additive into a fluid, containing a valve body, a fluid inlet, and a fluid outlet. A first channel system extends between the fluid inlet and the fluid outlet in the valve body, and a second channel system extends between the fluid inlet and the fluid outlet in the valve body such that in the operating state fluid can flow from the fluid inlet to the fluid outlet either through the first channel system or through the second channel system. The valve body contains a docking element which is configured for docking a cartridge for the additive. A switchover device is provided which can be switched if the cartridge is docked such that the second channel system is fluidically connected to the cartridge when the cartridge is connected to the docking element.

Abstract: An outside-in liquid purification system includes a housing and a cartridge. The housing defines an interior space and includes an inlet, an outlet, walls extending between a top side and a bottom side, and an unfiltered volume. The cartridge is disposed within the interior space and includes a top cap adjacent the top side of the housing configured to direct liquid that enters the interior space to the unfiltered volume and a filter having an annular shape and extending between the top cap and the bottom side of the housing such that no portion of the unfiltered volume is below the filter with the filter defining a hollow vertical column such that liquid flows from the unfiltered volume through the filter into the column and then downward out of the housing through the outlet.

Abstract: A device for forming at least part of a head part of a liquid treatment apparatus is arranged to receive a connecting head of a replaceable liquid treatment cartridge and includes at least one ratio-setting valve. The ratio-setting valve is provided with at least two first ports, each placeable in essentially sealed liquid communication with respective cartridge ports of a connecting head of a replaceable liquid treatment cartridge inserted into the device, and with at least one second port. The ratio-setting valve includes at least one movable regulating part for setting a volumetric flow rate ratio between a first flow of liquid between a first of the first ports and the at least one second port and a second flow of liquid between a second of the first ports and the at least one second port at any of a plurality of values.

Abstract: A filter has first and second fittings, a permeable filter medium, and a housing. The housing defines a fluid flow path within the housing between the first and second fittings, and the permeable filter medium is arranged in the fluid flow path to remove one or more substances from a fluid flowing along the fluid flow path. A reservoir is positioned in an upper region of the housing and includes a wall surrounding the first and second fittings of the filter. Each of the fittings has a topmost portion and the wall of the reservoir has a topmost portion, the topmost portion of each filter fitting being at or below the topmost portion of the reservoir wall. A filter arrangement may include a filter and a manifold assembly having first and second fittings which may be sealingly coupled to or uncoupled from the first and second fittings of the filter.

Abstract: Audible features are provided for a fluid filter assembly and a filter cartridge for use with a fluid filter assembly. The audible features generate sound when the filter cartridge is installed in the filter system so as to provide a signal indicating proper installation. Sound can also be created when the filter cartridge is removed. The filter system can also be provided with features for reducing clogging of the fluid path leading to the filter element.

Abstract: In an inside-out flow filter, a transition pressure recovery member is provided at the inlet and has structured contoured guide surfaces guiding fluid flow therealong into the hollow interior of an annular filter element to minimize transition pressure loss from the inlet to the hollow interior. The transition pressure recovery member includes transition flow deceleration surfaces gradually decelerating flow of fluid into the hollow interior and minimizing pressure drop.

Abstract: A head for a water filter system having a filter element including a three-way valve member movable between a first position, a second position, and a third position. When the valve member is in the first position, incoming water is directed to the filter element to remove sediment and impurities from the water. When the valve member is in the second position, the incoming water is blocked from passing through the filter element and the valve member. Lastly, when the valve member is in the third position, the incoming water passes through the valve member and not the filter element so that the filter element can be removed and replaced without interrupting the incoming water flow.

Abstract: A potable water distribution system for use in aircraft, as well as potable water systems of boats, recreational vehicles/caravans, residential homes, dental offices, laboratories, vending machines, and the like, provides for sanitizing of the system without opening filter and/or purification units and removing filtering and/or purifying cartridges from the filter and/or purification units during the sanitizing process.

Abstract: A continuously-operable flow stream processing system and method has two or more fluid processing media arranged in a fluid conduit network to provide alternate flow paths for a flow stream to be processed (e.g. filtered). Valves and other flow control devices, e.g. controller module and sensors, are used to redirect the flow stream from one or more service-needed fluid processing media to service-ready fluid processing media without taking the system offline to remove, repair, replace, clean in situ, or otherwise service the service-needed fluid processing media, so that the system may operate continuously to process the flow stream without stoppage. Redirection into alternative flow paths and media may be automatically implemented based on a predetermined threshold or trigger condition, such as may be detected by sensors directly or indirectly monitoring media condition.

Abstract: A water filter assembly, and a refrigerator and a water purifier having the same, including: a manifold having a inflow path through which raw water flows in and an outflow path through which filtered water flows out; a case supporting the manifold; and a filter cartridge coupled to a lower side of the case such that it is separable and connected with the outflow port of the manifold, wherein a fluid flow control unit is installed between the manifold and the filter cartridge and rotates according to a rotation of the filter cartridge, the center of the rotation is the same as the center of an outlet of the filter cartridge, and the fluid flow control unit includes a disk having a connection hole allowing the raw water inflow path and an inlet of the filter cartridge to communicate only at a certain position.

Abstract: Faucet diverter valves for use, for example, with faucets and water filtration systems.

Abstract: A sealing device (24) of a filter system (10) for filtering fluids, in particular of a motor vehicle, with a sealing ring (26) is described. The sealing ring (26) serves to seal a pipe (16), in particular a central pipe of a filter housing (12), that penetrates through a flange-sided opening (18) of an end plate (20), in particular of an end element of a filter element (14). The sealing ring (26) features a central section (58) that connects it with the end plate (20). The sealing ring (26) features in its axial direction on both sides of the central section (58) elastic sealing sections (60, 62) which cause each a reduction of the inner diameter of the sealing ring (26) compared with the central section (58).

Abstract: The present invention relates to a method of filtering a feed and waste water treatment system using the filtration method. The method utilizes a filtration cake for the filtration, which filtration cake is formed by elements contained in a liquid having a different composition than the feed to the filtered. The invention relates in particular to a method for filtering a liquid containing solid particles of different sizes which utilizes a filtration cake formed at least partly and preferably only from particles contained in said liquid containing solid particles of different sizes. The particles of the filtration cake are deposited on a filtration cake support and the method involves separation of the liquid containing solid particles of different sizes into two fractions: one fraction containing solid particles above a certain size and one containing smaller particles, and filtering the fraction containing smaller particles through the filtration cake.

Abstract: A filter assembly includes a filter body, a removable filter cartridge, and a bypass valve with incinerable and non-incinerable portions. The bypass valve includes a valve seat and a movable valve closure element removable with the removable filter cartridge and incinerable. The bypass valve includes a return member remaining in the filter body. A method is provided for controlling bypass valve-opening threshold pressure.

Abstract: A multiple flow faucet with passages having at least one base part installed in a mounting element, and a pivoting spout rotatably attached thereto, with at least a cold water line and a filtered water line. The filtered water line has at least one liquid-tight rotatable disconnection point at one or more of the passages.

Abstract: A filtration element for filtering a fluid medium comprising a rigid porous support of cylindrical shape having a longitudinal central axis (A) and comprising a plurality of channels for the circulation of the fluid medium to be filtered with a view to recovering a filtrate at the periphery of the support. The channels are parallel to a central axis of the support. The channels have at least three filtration crowns, characterized in that at the three crowns closest to the periphery of the support there is at least a substantial alignment of 3 adjacent axes among the axes of the flow and connection paths and the axes of the channels, which favors the mechanical strength of the support.

Abstract: A filter element (32) and a filter device (10). The filter element (32) can be arranged in a filter housing (16) of the filter device. The filter element (32) has an annular closed filter medium (34) connected with at least at one end face with an end member (36, 38). An annular anti-drain membrane (44) opens and closes at least one fluid opening (26) of the filter housing (16) amd is arranged on the side of the at least one end member (38) that is facing away from the filter element (34). The surface of the contact section (60) of the anti-drain membrane (44) has at least one relief-like adhesion disturbance area (64) for disturbing an adhesion of the anti-drain membrane (44) to the contact section (60).

Abstract: A water distribution system including a water storage tank, a water treatment unit, a diverter valve, and interconnecting water conduits arranged so that the same water treatment unit can be used to treat water supplied from a fill port to the storage tank during a fill operation, as well as water leaving the storage tank for supply to one or more points of water use during a supply operation. A diverter valve is provided which is movable between a fill position wherein the water treatment unit is in fluid communication with the fill port and not the point of water use device, and a supply position wherein the water treatment unit is in fluid communication with the at least one point of water use device and not the fill port. When the diverter valve is in the fill position, water supplied to the fill port can thus flow through the diverter valve and to the water treatment unit for treatment then to the storage tank for storage.

Abstract: A coreless and spirally wound non-woven filter element is provided. The filter element includes at least one band of base media having a selected porosity and an interlay having a different porosity within at least one band of base media. The presence of the interlay in the filter element can create additional surface area within the contiguous construction of a filter element for filtration. This interlay can also create the ability to change direction of flow and to increase the deposition of specifically sized contaminants.

Abstract: The present invention relates to a water filter, having a filter head and an interchangeable filter cartridge, with a blend-adjusting element which is located on the filter cartridge. The water filter is distinguished in that during the operation of installing the interchangeable filter cartridge in the filter head, the blend-adjusting element is positioned together with the filter cartridge on the filter head via adjustable or fixed drivers. In a further embodiment, the water filter is distinguished in that an adjusting device comprises an untreated-water distribution element arranged in or on the filter head and a partial-flow channel guiding element which is complementary with respect thereto and is arranged in or on the filter cartridge.

Abstract: A coreless and spirally wound non-woven filter element is provided. The filter element includes at least one band of base media having a selected porosity and an interlay having a different porosity within at least one band of base media. The presence of the interlay in the filter element can create additional surface area within the contiguous construction of a filter element for filtration. This interlay can also create the ability to change direction of flow and to increase the deposition of specifically sized contaminants.

Abstract: Devices, apparatus, systems and methods for preventing backflow current problems which often have caused debris and litter to pass out of screen type baskets used in storm water treatment systems. A half size or full size pivoting panel at the input end of a basket screen system placed in a storm water treatment chamber can downwardly divert incoming storm water so as to prevent back flow currents from being formed. The pivoting panel can work well during high flow conditions. A half size or full size pylon located in the input end of the basket screen can split and divert incoming storm water to also prevent back flow currents from also being formed. The pylon can work well during low flow conditions. Also, both the half pivoting panel and the half pylon can both be used at the input end of the screen basket. Still furthermore a gap in the floor before the input end of the screen basket can allow for sediment coming to pass down and collect beneath the screen basket.

Abstract: A test tube insert includes a flange having a width greater than a width of a mouth of a larger test tube into which the insert is to be inserted. The flange defines a first central opening. An annulus extends integrally downward from the flange. The annulus includes a fenestrated wall and a floor defining a second central opening. A small test tube body, smaller than the larger test tube, extends integrally downward from the floor of the annulus with the second central opening forming a mouth of the small test tube body. The test tube insert is disposed in the mouth of the larger test tube. Fluid is transferred through the central opening and the fluid fills the small test tube body of the test tube insert and flows through the fenestrated wall once the small test tube body is full into the larger test tube.

Abstract: The system has a plurality of dishes (1) for receiving at least one sample, each dish having a perforated base (2) enabling liquid reagents or solutions to pass continuously therethrough, the dishes being superposed in a confining tube (5); a circuit (50) for the continuous outflow of the solutions originating from distinct reservoirs (17); a multipath electrovalve (15); an electric pump (13); and a member for controlling and commanding the pump (13) and the multipath electrovalve (15) in a sequential and coordinated manner.

Abstract: A water purifying system having a bypass path supplies raw water to an outlet when a filter assembly is separated from a valve assembly. The water purifying system includes a valve assembly having a valve cover with an inlet and an outlet, and a head member moved up and down within the valve cover to form an inflow path and an outflow path, and a filter assembly removably connected to the valve assembly and mounted with a filter. When the filter assembly is connected to the valve assembly through a linear motion, the filter assembly advances the head member so that a fluid flown in through the inlet is guided to the outlet passing through the filter. When the filter assembly is separated from the valve assembly, the head member is retreated so that the fluid flown through the inlet is guided to the outlet bypassing the filter.

Abstract: A water recycling system that can be used for reclaiming and recycling water, waste water, or grey water, for providing landscape irrigation, or for recycling uses such as for sanitary facilities, as well as for pre-heating clean water to save energy. A water recycling system may include a sealable tank, an influx pipe, a self-clearing filter disposed within the tank, a pump, and an effluent pipe.

Abstract: Fluid filtration systems and methods thereof to filter fluid in a first directional mode and a second directional mode are disclosed. Fluid filtration systems and methods thereof include a first directional mode, a second directional mode, and a filter unit. The filter unit includes a filter housing unit and a filter chamber disposed in the filter unit.

Abstract: Intravenous fluid filter devices including a filter comprising spaced apart first and second filter elements comprising hydrophilic membranes and providing inside-out flow, and methods of using the devices, are disclosed.

Abstract: The filter device is provided with a housing (1) and with a stack of filter plates (10, 11) arranged therein at a spacing from one another. The housing includes an inlet (7) for the fluid to be filtered, an outlet (9) for the filtrate which is connected in a conducting manner to the inside of the filter plates (10, 11), and a cavity extending through the stack and formed by recesses in the filter plates (10, 11). The filter plate stack is arranged fixed to the housing, and a centrifugal pump (14) with several impellers (15) is arranged within the filter plate stack. This pump ensures an intensive through-flow of the filter plate stack and thus a removal of the filter residues.

Abstract: A liquid vacuuming and filtering device may include a container having a sealed interior, a vacuum pump connected to the interior, a two-way valve connected to the interior, a flexible hose connected to the valve, a filter positioned within the interior and connected to the valve and a standpipe positioned within the interior and connected to the valve. The pump may be adjusted to a filling configuration, in which the pump evacuates the container interior to a pressure below ambient, causing fluid to be drawn through the hose, valve, and filter, which collects suspended particulates; or to a discharge configuration, in which the pump pressurizes the interior to a pressure above ambient, wherein the valve is adjusted to allow filtered fluid within the container to flow through the standpipe, valve and out through the hose.

Abstract: The present invention relates to a water filter, having a filter head and an interchangeable filter cartridge, with a blend-adjusting element which is located on the filter cartridge. The water filter is distinguished in that during the operation of installing the interchangeable filter cartridge in the filter head, the blend-adjusting element is positioned together with the filter cartridge on the filter head via adjustable or fixed drivers. In a further embodiment, the water filter is distinguished in that an adjusting device comprises an untreated-water distribution element arranged in or on the filter head and a partial-flow channel guiding element which is complementary with respect thereto and is arranged in or on the filter cartridge.

Abstract: A filter element includes filter media, first and second end caps, a latch arrangement projecting from the first end cap, a tubular neck extending from the first end cap and a valve head oriented within the first end cap aperture constructed and arranged to move between a position sealing the first end cap aperture and exposing the first end cap aperture. A filter assembly includes a filter element, as characterized herein, and including a filter base and a service cover. A method of servicing includes removing an old filter element, operably mounting a new filter element in a filter base including engaging a valve head against a spring member in the filter base, and operably mounting the service cover over the new filter element and filter base.

Abstract: A liquid filter assembly is provided. The assembly includes a liquid filter cartridge and a housing. The liquid filter cartridge, includes, among other things, first and second, opposite, end caps each having a central aperture therethrough. A seal arrangement including a radially directed seal is mounted on a seal support of the first end cap that projects away from the second end cap. The cartridge includes a seal mount configured to define a seal plane non-orthogonal to a central axis of the cartridge. The housing includes a filter head and a housing sidewall. The filter head includes a filter head having a body, a top cover and a bottom aperture opposite the top cover. The housing extends through the bottom aperture. The cartridge as described is installed in the housing, with an end cap radially sealed against a tube in a bottom of the housing.

Abstract: A gas baffle for a waste water treatment plant filter housing that includes a first and second deflecting plate. The gas baffle has at least one flow-through opening defined by the first and second deflecting plates. The combination of the first and second deflecting plates deflects rising gas bubbles and any solid particulates so that the bubbles and particulates do not enter the filter housing. The gas baffle may include exterior apertures to dissipate the rising gas bubbles that travel on the bottom surface of each deflecting plate. The gas baffle may be integrally formed with the filter housing or created separately and subsequently connected.

Abstract: A liquid vacuuming and filtering device may include a container having an interior sealed from the ambient, a vacuum pump in communication with the interior, a two-way valve connected to the container interior, a flexible hose connected to the valve, a filter positioned within the container interior and connected to the valve and a standpipe positioned within the interior and connected to the valve. The vacuum pump may be adjusted to a filling configuration in which the pump evacuates the container interior to a pressure below ambient, which causes fluid to be drawn through the hose, valve and through the filter, which may collect particulates that contaminate the fluid. Filtered fluid then collects within the container.

Abstract: A filtering device for filtering liquids in internal combustion engines has a filter housing and a filter element inserted into the filter housing. A cover disk closes off the filter housing. The cover disk consists of two individual disks and a central flow connection connects the two individual disks. The two individual disks and the flow connection form a common plastic component.

Abstract: According to various aspects, exemplary embodiments are provided of valve apparatus and combination filter valve assemblies. One exemplary embodiment provides a combination filter valve apparatus suitable for filtering objectionable particulate matter from a fluid and for selectively occluding a fluid flow opening. In this exemplary embodiment, the apparatus generally includes an outer member, a sealing member, and filtration media disposed generally between the outer member and the sealing member. The filtration media may be configured to generally support the sealing member for resilient movement relative to a fluid flow opening between open and closed positions. In the open position, the sealing member may be spaced apart from the fluid flow opening. In the closed position, the sealing member may be in sealing engagement with and substantially blocking the fluid flow opening, thereby inhibiting the ingress of fluid into or egress of fluid out of the fluid flow opening.

Abstract: A fuel filtration apparatus for use in an internal combustion engine comprises an interrupter valve in a flow path from an inlet port of a filter head to a compliant filter. The interrupter valve has an open state and a closed state. In the open state a protruding member of the filter depresses a bottom end of the valve and opens the flow path when the compliant filter is connected to the filter head. The interrupter valve also has a closed state wherein the flow path is closed in the absence of the protruding member of the filter (as with a non-compliant filter).

Abstract: A faucet mounted water filtration system includes a base defining an inlet and a plurality of outlets. The base at least partially defines a filter compartment configured to house a filter cartridge. A first valve assembly is positioned within the base and defines a first passage and a second passage. A valve stem is movably positioned within the first passage. With the valve stem in a first position, the first passage provides fluid communication between the inlet and a first outlet and with the valve stem in a second position the second passage provides fluid communication between the inlet and the filter compartment. A body is rotatably coupled to the base and includes a first cam configured to urge the valve stem from the first position to the second position as the body rotates with respect to the base.

Abstract: A potable water distribution system for use in aircraft, as well as potable water systems of boats, recreational vehicles/caravans, residential homes, dental offices, laboratories, vending machines, and the like, provides for sanitizing of the system without opening filter and/or purification units and removing filtering and/or purifying cartridges from the filter and/or purification units during the sanitizing process.

Abstract: The disclosed invention is a fixed bed ion exchange water purification system. It employs a combination of electronically controlled process steps and specific systems configurations to duplicate the effects of moving resin beds from one operating position to another as is required in moving bed ion exchange water purification systems. The invention combines features of single fixed bed ion exchange systems with those of a moving bed system. The invention applies to the treatment of water having typical industrial and drinking water concentrations of various ions.

Abstract: A vertical membrane module unit is allowed to be installed even at a place with a low ceiling. A housing containing a vertical membrane module unit is held by a housing holder. The housing holder holds the housing tiltably such that the housing can be positioned with the longitudinal direction of the membrane module unit being substantially vertical when treated water is extracted, and the housing can be positioned with the longitudinal direction of the membrane module unit being substantially horizontal when the membrane module unit is removed from the housing.

Abstract: A self-cleaning screen for shallow water pumping includes a rotatable drum made of mesh material for removing debris from water passing into the drum, and a suction chamber within the drum for feeding water to a suction pipe connected to a centrifugal pump. Inlet openings are arranged across a bottom side of the suction chamber. A check valve assembly is provided to prevent water from back flowing through the inlet openings, to thereby maintain a prime in the suction pipe when the pump is off. The check valve assembly includes valve members that are slidably mounted above the inlet openings for movement between closed and open positions. The valve members move upwardly from their closed positions to their open positions upon movement of water through the inlet openings into the suction chamber, and return to their closed positions by force of gravity when water stops flowing into the suction chamber.

Abstract: A combination manifold and single lever cantered element system to which a filter module removably attaches. A ¼ rotation of the single lever mediates simultaneous operation of both valving and filter module release, and facilitates changing removably attachable filter modules without the need for tools.

Abstract: A liquid is filtered with a microsieve. Use is made of a crossflow channel running along a supply surface of the microsieve, and of a drain connected to a drain surface of the microsieve. During a filtering phase, a pressure drop is maintained from a point in the crossflow channel upstream of the microsieve to a point in the drain. The filtering phase is repeatedly interrupted by reducing a flow limitation in the crossflow channel downstream of the microsieve, such that a pressure difference across the microsieve reverses sign. As a result, the pressure reversal coincides with an increase of the flow through the crossflow channel, with a strongly cleaning effect on the microsieve.

Abstract: A faucet mounted water filtration system includes a base having an inlet, a water receiving chamber, and at least one outlet. The inlet is configured to be coupled to a faucet. A body is coupled to the base. The body includes a filter compartment configured to house a filter cartridge. A cover is rotatably coupled to the body. A cam is operatively coupled to the cover. A valve operatively engages a surface of the cam. The cam is rotatable to move the valve to open and close a passageway to the filter compartment. A biasing element biases the cover to a default position.

Abstract: A system, method and apparatus employing the laminar nature of fluid flows in microfluidic flow devices in separating, sorting or filtering colloidal and/or cellular particles from a suspension in a microfluidic flow device is disclosed. The microfluidic flow device provides for separating a particle within a suspension flow in a microfluidic flow chamber. The chamber includes a microfluidic channel comprising at least one inlet port for receiving a suspension flow under laminar conditions, a first outlet port and a second outlet port. The chamber further includes an interface for translating a particle within the channel. The first outlet port receives a first portion of the suspension exiting the said channel and the second outlet port receives the particle in a second portion of the suspension exiting the channel.

Abstract: An arrangement for filtering a hydraulic fluid having a bypass line connecting the feed channel to the discharge channel where the bypass line is opened by a pressure switching valve when a pressure change is caused by the contamination of the filter element.

Abstract: A method for in-line preparation of liquid for an extracorporeal blood treatment apparatus that makes provision for placing a filter in correspondence with each of two successive filtration stations, for carrying out a liquid preparation cycle, for removing the filter, which operates in correspondence with a first filtration station, for placing in correspondence with the first filtration station the filter that operated in correspondence with the second filtration station, for placing a new filter in correspondence with a second filtration station and for launching a new sterile liquid preparation cycle. The invention also provides a device for implementing the described method and an apparatus for extracorporeal blood treatment, which incorporates this device.

Abstract: A duplex strainer for straining material includes a housing, housing inlet port through which material enters the housing under pressure for straining and an outlet port through which strained material exits the housing. The housing includes a first strainer chamber having the first and second ports in separate fluid communication with the housing. A second strainer chamber includes third and fourth ports in separate fluid communication with the housing. The first port opposes the third port and the second port opposes the fourth port. A valve control structure includes a first three-way ball valve disposed within the housing for controlling fluid flow between the first port, third port and the housing. A second three-way ball valve is disposed within the housing to control fluid flow between the housing, second port and fourth port.