Abstract: A portable water treatment assembly and water treatment method are disclosed in which the water to be purified is placed in an upper container together with a suitable bactericide, and is held in that container until the bactericidal action is complete. At that time, an elongate dowel is manually manipulated to open a passage between the upper container and a lower container to drain the purified water through a sediment cartridge in the upper container to remove sediment from the water, and through a cartridge in the lower container containing a medium to remove the bactericide and/or other potentially distasteful ingredients from the water, and the purified water is collected in the lower container for subsequent dispensing and use.

Abstract: A filler-packing apparatus comprises a bundled filler-receiving space assembly, a movable bottom stopper assembly having bottom stoppers which are insertable into bottom openings of the filler-receiving spaces of said assembly, and top stoppers which are respectively insertable into top openings of the filler-receiving spaces and enabling packing filler in a plurality of columns in a short period of time. A filler-packing method uses this apparatus and thereby enables packing of the filler into the filler-receiving spaces in short period of time uniformly. An assembly of columns is uniformly packed with a filler and assembled by using the filler-packing apparatus and the filler-packing method.

Abstract: Tourmaline fine powders are mixed with glass powders having melting point between 500.degree. C. and the transition temperature of tourmaline, and the grains are formed from the mixture and sintered at a temperature below melting point of the glass. Tourmaline powders are stacked in the glass matrix in the tourmaline composite grains prepared above. When water passes through a case including many such grains, the water contacts with the grains and is converted to activated water by the grains. By using the activated water, a structure such as a moving vehicle or an outer wall of a building can be washed efficiently without a detergent. Further, the grains can be used in an apparatus for recycling wash water.

Abstract: An apparatus for equalising pressure and flush in a vessel (1) has a chromatographic separation chamber (5), a distribution plate (3) or collection plate located in the vessel, a pressure equalisation chamber (4) defined at least in part by the extremity of the vessel and by a first face of the plate, the separation chamber (5) being defined by a second face of the distribution or collection plate, a first conduit (6) which places a first fluid in communication with the distribution or collection plate, the separation chamber (5) communicating with the equalisation chamber (4) via a flush chamber (10) comprising a first opening (21). A line (9) for supplying a second fluid which is substantially pure or substantially non contaminated is directly connected to the flush chamber at a point such that a portion of the second fluid can circulate towards the pressure equalisation chamber via a further opening (20) and the remaining portion can circulate towards the separation chamber via the first opening (21).

Abstract: The water filtration system has nine filter elements serially arranged in a hollow cylinder housing with a water inlet end and water outlet end having pipe fittings, such as, 3/4 inches for installation in the main inlet water line of a household. For a normal household the housing is approximately 20 inches long and 4 inches in diameter. The first filter element on the water inlet end is a loose weave polyester fiber pad; the second filter element is multiple irregular polyethylene beads filling approximately 3 inches of the housing length; the third and seventh filter sections are a very fine plain wool filter floss; the fourth, sixth and eighth filter sections are one millimeter wool fibers impregnated with carbon to equal two thirds of the total weight of the fibers; the fifth filter element is multiple pharmaceutical grade carbon granules filling approximately 4 1/2 inches of the housing length; and the ninth filter element is a fine mesh nylon screen.

Abstract: An apparatus for filtering contaminated fluids is provided. In a filtering mode, contaminated fluid is introduced into a vessel housing a bed of positively buoyant particulate material and a bed of negatively buoyant particulate material in a spaced apart relationship. The contaminated fluid is passed through the bed of negatively buoyant particulate and through the bed of positively buoyant particulate. In a backwashing mode, a backwashing fluid is passed through the bed of positively buoyant particulate to flush particulate contaminants therefrom. The backwashing fluid is discharged from the vessel at a location between the bed of negatively buoyant particulate and the bed of positively buoyant particulate.

Abstract: A water treatment system having dosing control for providing treated water having very low organic and ionic contamination, that can be accurately dispensed. The water treatment system having dosing control includes a water inlet hydraulically connected to a pump having a variable speed motor. At least one water treatment device is hydraulically connected downstream of the pump, at least one outlet valve is hydraulically connected downstream of the water treatment unit, and a recirculation line is hydraulically connected from the outlet valve to the pump. The output of the pump is controlled by a regulating device connected to the variable speed motor. The system provides for lower electrical current usage and reduced acoustical disturbances.

Abstract: A method is provided for purifying raw water taken from a raw water reservoir. The method includes the steps of subjecting the raw water to magnetic treatment, causing the magnetically treated water to flow through a filter medium in a first direction for purification of the treated water, and discharging the purified water into the raw water reservoir. The method further includes the steps of causing the magnetically treated water to pass through the filter medium in a second direction opposite to the first direction, and discharging the oppositely passing water into the raw water reservoir. The apparatus for realizing the above method includes a water intake assembly, a filter assembly and a water discharge assembly. A magnetic treatment device is mounted on the water intake assembly for subjecting the raw water to magnetic treatment. A switching device is operated to cause the magnetically treated water to flow through the filter assembly selectively in the first and second directions.

Abstract: A method for the extraction and purification of a plasmid DNA which comprises (1) collecting a culture medium containing a transformant into a first cartridge for the extraction and purification of the DNA, (2) subjecting said transformant to bacteriolysis and RNA degradation conditions, (3) recovering an extract containing solubilized DNA from said first cartridge, (4) transferring said recovered extract to a second cartridge for the extraction and purification of the DNA, and (5) absorbing, washing and eluting purified plasmid DNA from said second cartridge; and a device for the extraction and purification of a DNA which comprises a first cartridge for the extraction and purification of the DNA having at least a trap filter and a membrane filter, and a second cartridge for the extraction and purification of the DNA having at least a glass fiber filter, a glass powder layer and a membrane filter.

Abstract: Ceramic spheres containing crystallites of the popular crystal tourmaline are produced by sintering. Water that has flowed through a vessel containing a large amount of the ceramic spheres has been found to show interface activity, such as emulsification, washing and permeation. This activity endures for a couple of days. An excess of isolated hydroxil ion (H.sub.3 O.sub.2)-occurring in the water likely causes the activity.

Abstract: A swimming pool filter including a cylindrical receptacle made of plastic material and casket-forming ends to which a valve head is coupled, the latter to be connected by conduits to a diffusor and a manifold located, respectively, at the top and bottom of the receptacle; the filter including sand as filtering material, and a buffer is located between the bottom of the receptacle and the manifold occupying a predetermined sand-free space, which buffer when subject to an inner overpressure that causes the receptacle to expand, prevents the sand from accumulating at the bottom of the receptacle, thus neutralizing the pressures that may act upon the manifold. The cylindrical wall of the receptacle is reinforced with a band made of a resistant material.

Abstract: An air filtration or fluid treatment system includes a nonwoven filter media or mat (10) formed from a plurality of elongated generally hollow fibers (20) each having an internal cavity (22) which has an opening (24) to the fiber surface and each retaining within the internal cavity a large number of relatively small solid particles (18) which interact with the air or other fluid stream to be treated. The solid adsorbent particles (18), such as activated carbon, are permanently entrapped within the longitudinal cavities (22) of the fibers (20) without the use of an adhesive or without being embedded onto or within the polymer fiber.

Abstract: A water purifier includes a filter having a cylindrical housing formed with a water inlet at one end and a water outlet at the other end and contains in the housing a ceramic layer consisting of granular ceramic heaped up in a layer, a magnetite layer consisting of broken pieces of magnetite heaped up in a layer and provided at least above or below the ceramic layer, and annular magnets provided above and below the ceramic layer in such a manner that these annular magnets coincide with each other in the sense of magnetic lines of force and that the direction of the magnetic lines of force is parallel to the direction of flow of water. Water molecules are activated while passing through the magnetic field produced by the annular magnets and the magnetite layers which are magnetized by the annular magnets.

Abstract: A silver recovery device (30) is described for removing silver from a silver-containing solution. The device (30) comprises an ion-exchange resin bed (34) and a pump (62) for directing the solution through the resin bed (34). The pump (62) is positioned downstream of the resin bed (34) and the resin bed (34) is held within a retaining space (36) of variable dimensions. Higher liquid flow rates are thereby achievable, without fluidization of the resin.

Abstract: An apparatus for extracting an analyte from a liquid sample, comprises a microcolumn having a microparticulate media therein, the media being sandwiched between two compression layers. Preferably, the compression layers comprise a binder-free glass fiber, held in the microcolumn by upper and lower polypropylene mesh.

Abstract: Undesirable ionic species are removed from water by way of a passive treatment employing apparatus in the form of a porous container which confines a multitude of pieces of sponge containing a chelation polymer. The container, preferably of tubular shape and having a draw-string closure, is emplaced into a region through which water to be treated is caused to flow. The manner of emplacement is such as to prevent by-pass of water around the container. After a suitable time interval, the apparatus is removed and replaced with similar apparatus having fresh sponge.

Abstract: A water purification through-flow device which comprises a cylindrical shell which is divided lengthwise into two or more sectors, separated from each other by partitions, with a cover fitting one end of the shell, in which cover there is provided an inlet for water which is to be purified. Depending on the number of sectors, the outlet is provided in the same cover if there are two sectors, and in the other cover if there are three sectors: the water flowing through each of the sectors one after the other. The individual sectors may contain the same purification substance, or different sectors can contain different ones. There may be provided mechanical filtration means for the water passing through the device, and there may be provided means for closing the various sectors during storage.

Abstract: A filter for disinfecting non-potable water is disposed in-line in a water delivery pipe, such filter having a plurality of chambers. The first chamber contains biocidal resin which imparts a biocide residue to the water as it passes there-through to kill microorganisms. The water then passes through a turbulating disk to an extended contact time chamber of a selected volume to allow further contact time between the biocide residue and any microorganisms in the water. The water then passes through a 1-3 micron screen, which acts to retain protozoan cysts within the filter, and then passes through a biocide removal chamber containing medias which remove the biocide from the water. The water then passes through a chamber containing bacteriostatic media which acts to prevent back contamination from the effluent end of the filter.

Abstract: The water purification filter is coupled intermediate any conventional shower head feed pipe and shower head. The filtration device is toroidal with a serpentine flow path. The filtration device envelopes the feed pipe which enables the shower head to remain within substantially the same location as before the insertion of the filter. To purify the shower water, the filter contains a filter media coupled between two filter screens.

Abstract: The liquid purification system of the present invention has a double-tank structure comprising an inner tank and an outer tank that are in communication with one another so that either one of the microfiltration means and the adsorption means may be accommodated is in the inner tank, and the microfiltration means or the adsorption means that is not accommodated in the inner tank may be accommodated in the outer tank, with the disinfection system being provided on the liquid line connecting the inner and the outer tanks. Since the liquid purification system of the present invention has such an arrangement, the system is quite compact in size to facilitate an easy installation and maintenance at low cost while the system satisfies various performances required for the system used for the purification by filtration, disinfection and adsorption of pool water; drinking water and beverages; industrial water; waste water; rain water and water from river, lake or sea; and the like.

Abstract: A water purification device for attachment to a hose or other water supply such that water flowing through the device comes in intimate contact with a treatment media including free available silver ions to provide a anti-bacteria and germicide treatment of the water flowing therethrough. Preferably, the device includes an inner chamber having opposed pairs of shells, and treatment media is disposed in at least one of such shells.

Abstract: An improved simulated moving bed separation system is disclosed. The improved novel system is characterized by being provided with rotary valves or check valves or both. The rotary valves are provided at the position where desorbing liquid is introduced, the position where the extract is taken out, the position where the feedstock is introduced and the position where the raffinate is taken out and the rotary valves are intermittently switched on and off, whereby the liquid take out of the unit packed bed preceding the position where the desorbing liquid is introduced is supplied to the circulation pump. The check valves are provided in the fluid flow passage between a unit packed bed and an extract draw-out port positioned in the next unit packed bed in the direction in the next unit packed bed in the direction of fluid flow. Thus liquid flow is smoothly controlled and the more effective separation is realized.

Abstract: A filter for disinfecting non-potable water disposed in line in a water delivery pipe such filter having a plurality of aligned chambers is disclosed. The first chamber contains biocidal resin which imparts a biocide to the water as it passes therethrough. The water then passes through a turbulating disk to an extended contact time chamber of a selected cubic volume to allow further contact time between the biocide and any microorganisms in the water. The water then passes through a biocide removal chamber containing media which removes the biocide from the water. The water then passes through a chamber containing bacteriostatic media which acts to prevent back contamination from the effluent end of the filter. The water then passes through a 3-micron screen which acts to retain protozoan cysts within the filter as the water passes on in the water delivery pipe.

Abstract: A system and method for the prevention of bacterial growth in portions of a water treatment system which contain water from which bactericide has been removed includes a cross connect between the water containing the bactericide and the water from which the bactericide has been removed. The cross connect includes a check valve which closes to block communication between the respective waters when water is flowing through the system, and opens to permit diffusion of the bactericide from the water containing the bactericide to the water from which the bactericide has been removed when the flow of water through the system ceases.

Abstract: An axial flow filtration cartridge, a system, a support assembly, an apparatus, as well as a process are provided for removing particulate matter as well as dissolved heavy metal ions and the like from an aqueous effluent stream. The invention is useful for removing contaminants from industrial waste streams. The cartridge contains features which make it relatively resistant to fouling by solid particles. Additionally, the cartridge has no central void volume. No separate housing for the cartridges is required. In a system embodiment the cartridge has a filtering chamber containing absorbent clay particles confined between porous liquid-permeable retainer means. An upstream cartridge cap and a downstream cartridge cap removably receive the ends of the filter cartridge in a liquid-tight seal. The flow of aqueous effluent to each of the cartridges is individually controlled.

Abstract: This invention is regarding to a fast connection joint for pipe fitting, particularly for those applications where prevention of water spraying in large quantity is required. Its structural design allows connecting or disconnecting an external pipe or faucet, without the need to shut off the water automatically opens when a pipe or faucet is inserted into the connection joint and automatically closes when the pipe or faucet is withdrawn.

Abstract: An arrangement for cleaning ground water and ground region through which it passes comprises transporting unit for producing a liquid circulation between a well shaft extending in the region of contaminated ground water and the surrounding region, unit for separating the well shaft into an upper region and a lower region, a water permeable shaft wall arranged at least locally for aspiration of water from and reintroduction of water into the ground, unit for connecting the regions with one another and including a throughgoing tube in which the transporting unit operate, and unit forming filter chambers in the upper region and in the lower region of the well shaft. The filter chambers occupy the whole free cross-section of the well shaft and extend at least in the upper well region upwardly over an upper edge of the water permeable shaft wall into an outwardly closed shaft region.

Abstract: A filter system (10) is disclosed that includes a filter assembly (12) and input/output hardware (14). The filter assembly includes a housing (16) and cap (18) that cooperatively support a prefilter (20) and main filter (22) in a fluid flow path. Fluid flow through the filter assembly occurs radially through the prefilter and axially or radially through the main filter. The main filter includes an alkaline leaching agent to raise the pH of fluid flowing therethrough to, for example, between 8 and 10. A method is also disclosed for evaluating the effectiveness of the filter system in reducing a select contaminant from the fluid by evaluating the effectiveness of the filter system in raising the fluid's pH.

Abstract: A separator device to separate a mixture of immiscible liquids of different densities wherein one of said liquids is in a discontinuous phase. The separator device includes a container having an inlet for the mixture of immiscible liquids and an outlet for removing one of the liquids after separation. A drain is provided to remove the discontinuous phase liquid after separation. Randomly arranged, loosely packed, coalescing medium within the container encourages coalescence and agglomeration of the discontinuous phase liquid.

Abstract: Apparatus for removing a contaminant from a container having a liquid inventory including the contaminant as a minor ingredient and having an elevated temperature at the top of the liquid inventory. A treatment vessel contains a supply of particulate adsorbent for the contaminant. A first conduit connects the top of the container with the treatment vessel. A second conduit connects the treatment vessel with the bottom of the container. The temperature difference between the top and bottom of liquid in the container provides the driving force for continuing movement of liquid from the top of the container through the first conduit, the treatment vessel and the second conduit back to the bottom of the container. The apparatus is particularly useful for removing PCB from retrofilled transformers containing minor quantities of PCB.

Abstract: A water filter comprising a hollow cylindrical base, a filter assembly fastened in said base at the top which is comprised of an inner filter tube covered with a braided outer filter tube, a cylindrical casing covered on said filter assembly and attached to said base at the top, a ater outlet pipe connected to said base at the bottom, a water intake pipe and a drain pipe respective connected to said base, a plunger fastened in a cylindrical hole inside said base and rotated by a lever, wherein said plunger has a plurality of water passage holes alternatively rotated by said lever to let an intake flow of water from said water intake pipe: (a) flow toward said water outlet pipe directly; (b) flow through said filter assembly to said water outlet pipe (c) flow through the space between said inner filter tube and said outer filter tube and then, penetrate through said outer filter tube toward said drain pipe; (d) flow into the space between said outer filter tube and said cylindrical casing and penetrate through

Abstract: A filter for removing at least one hydrocarbon from water is disclosed where the active filter medium is fibrous peat which has been dried to a water content of 5 wt.% or less. A process for removing at least one hydrocarbon from contaminated water involves contacting the contaminated water with peat as described above. A filter assembly is also disclosed where at least two of the filters as described above are connected in series.

Abstract: A system for prolonging the life of a GAC water treatment device in which an ultraviolet light transparent material is used to constrain water to flow over carbon surfaces configured to receive maximum flux from a U/V radiation source, for the purpose of preventing microbial proliferation on the carbon surfaces, oxidizing organic contaminants adsorbed from the water onto the carbon surfaces and from biodegradation of adsorbed microbial forms, disinfecting water, and oxidizing organic contaminants in the water.

Abstract: Silver is recovered from the rinse water from a photographic film processing unit by means of a silver recovery device in which the rinse water is passed through at least one bed of ion exchange resin particles maintained in fluidized condition by the water flow. A plurality of such beds are preferably connected in series with rinse water being recirculated until fresh rinse water causes overflow to the next bed and finally to a collection vessel. Fluidization is interrupted periodically to create quiescent periods which aid in removal from the resin particles of accumulated gelatin from the processed film.

Abstract: Water treatment apparatus including an iodine resin purification bed suppported in a walled structure and mounted upstream of an active carbon filtration bed. In one disposable cartridge construction, a replacable, toroidal sediment filter surrounds the purification chamber which concentrically projects from the upstream end of a larger diameter active carbon bed. In another construction, the purification bed includes a directionally permeable, replaceable, pointed housing which insertably mounts within the carbon bed. In another construction a portable housing contains a purification bed within a surrounding carbon bed, and receives water from faucet coupling means and includes a nozzle. In still another personal construction, a purification cartridge mounts between a pressurizable collector and canteen.

Abstract: A filter device for use in a domestic or office water supply system is provided. The device includes a container having an enclosed cavity, and includes a filter unit disposed in the cavity. The device is a two-stage device having a first radial flow filter subassembly and a second axial flow filter subassembly. The radial flow subassembly includes a radially inner perforated tube, a carbon block cylinder over the tube, prefilter cylinders over the carbon block cylinder, and a screen-like wrap layer over the radially outer second prefilter cylinder. The axial flow subassembly has a plurality of axial filter fiber tubes which have a support header wall. The header wall is mounted in a cup-shaped member. The cup-shaped member has a plurality of outlet passage slots at the closed end thereof and supports the header wall at the other end thereof.

Abstract: A filter device for filtering hydrocarbon fuel, such as gasoline, includes a filter device having a ceramic material which can activate water. The hydrocarbon fuel which is passed through the ceramic material can be activated by the ceramic material. The ceramic material may comprise ceramic particles housed in the filter body, or a powdery ceramic material attached to the filter body, which comprises an elastic network body having interconnected spaces communicating with each other.

Abstract: Compound filters using two different filter element types are disclosed. When a carbon element is used it is of the concentric type having a central cavity. Filter elements for filtering very fine particles are used in addition. Various types of such elements, including hollow fiber elements, are disposed in a lower portion and/or upper portion. Flow control arrangements, improved filter element removal arrangements, improved filter sealing arrangements, accommodations for filter elements having different lengths and tolerances and filter arrangements for preventing liquid flow when no filter element is present are described.

Abstract: A system is used to remove the solid waste and gases excreted by a fish after being caught and deposited in water supported by a container and has a body. A filtering apparatus that removes the solid waste and gases excreted by the fish is connected to the body. A pumping device is connected to the body for continuously circulating the water supported within the container through the filter apparatus. If desired, an aerating device may be connected to said body for mixing air with the circulating water to provide oxygen to the fish supported in the container.

Abstract: A filter device for cleaning water and having a reinforcing member for preventing reduction of filtering area due to deformation of filter membrane. The filter device comprises a generally cylindrical casing and a filter element contained in said casing for passing water from the primary side thereof to the secondary side thereof, the filter element including a corrugated filter membrane and a reinforcing member for supporting the corrugated filter membrane. The filter device is particularly suited for use together with a powdered absorbent such as activated carbon.

Abstract: A filter system (10) is disclosed that includes a filter assembly (12) and input/output hardware (14). The filter assembly includes a housing (16) and cap (18) that cooperatively support a prefilter (20) and main filter (22) in a fluid flow path. Fluid flow through the filter assembly occurs radially through the prefilter and axially through the main filter. The prefilter and main filter are cooperatively designed to produce enhanced filtration rates and to remove particulate down to 0.5 micron. By substituting the cap and hardware, the filter assembly (12) is readily converted to different applications.

Abstract: Methods and apparatus for continuous separation and optional recovery of one or more contaminants from a liquid, and in particular, for isolation of one or more specific elements, isotopes, ions, complexes and/or compounds from mixtures of similar or dissimilar materials, whereby the liquid containing such mixture is treated continuously, and the thus-isolated material may if desired be economically recovered. Through the use of means for continuously moving an affinity medium in a direction countercurrent to the flow of a liquid containing the material to be isolated, it is possible to obtain contaminant removal efficiencies comparable or superior to what would be obtained with heretofore known methods, and to achieve selective removal of one or more contaminants from a mixture. The affinity medium is selected on the basis of its ability to form an association with one or more of the components of the mixture being treated.

Abstract: The Strainer has a pipe with a multiplicity of holes, and surrounded by a mass of stones or marbles, confined within a double nylon netting. The pipe confines a one-way check valve. The mass of stones or marbles serves a dual purpose: weighting of the Strainer, and ancillary filtering of the fluid. The stones or marbles are of approximately three-quarters of an inch in diameter and, consequently, they have a multitudinous number of interstices which are not less than three-sixteenth of an inch in width, length and depth. These present virtually unlimited pathways, of gross dimensions, for the extraction of water.

Abstract: A water filtering, sterilizing and heating apparatus is provided. The apparatus includes filter tank provided with activated carbon therein, to filter bacteria, miscellaneous impurities and odor in water. The output of the filter is coupled to a microwave oscillator to vibrate and churn the water coming from the filter tank. The water from the microwave oscillator is coupled to an ultraviolet light sterilizing tank having an ultraviolet lamp disposed vertically in the center thereof. A storage tank is provided to receive and store the water coming from the ultraviolet light sterilzing tank. The fluid level in the storage tank is maintained by automatically controlling the passage of water thereto by means of an electromagnetic valve actuated by a micro switch responsive to displacement of a float. The temperature of the stored water being kept at a preset temperature by means of a heater and a temperature sensor.

Abstract: An apparatus for the pre-concentration of a sample substance for spectroscopical reasons in the flow injection analysis having an ion-exchanger column of conical shape filled with a granular ion-exchanger. For pre-concentration of the sample, the sample liquid flows through the ion-exchanger column from the smaller first end. Then the pre-concentrated elements are eluted by an eluting liquid from the wider second end. Therewith, a very low dispersion of the eluted sample slug results. Thus, a considerable increase in the degree of sensitivity can be achieved with high analysis frequency.

Abstract: A water treatment device is described which incorporates an easily changed cartridge containing an open-cell foam having a water treatment material contained therein, such as granules of a halogen compound. The device includes an adjustable orifice valve member which may be selectively positioned to control the water flowing through the cartridge. Thus, the device may be included in a water treatment system to treat either water flowing a source to a storage tank, or water being recirculated back into the storage tank.

Abstract: A biflow filter drier has a pair of flapper-type check valve assemblies for directing fluid flow unidirectionally through a centrally supported molded desiccant core. Each check valve assembly is a three part structure spot welded into a unitary assembly comprising a centering support plate, a core support cup and an intermediate flapper valve plate. Two flapper valves are formed from the valve plate and comprise the check valves covering valve openings in the suport plate and support cup. The material which formed the central opening in the support plate is bent at an angle to the support plate and provides an overtravel stop for the check valve. An angled surface of the core support cup provides an overtravel stop for the second check valve.

Abstract: A device for the production of ultrapure water comprising tubes containing water treatment elements joined by two end plates. Grids are disposed between the tubes and the end plates to retain resin or carbon particles. Connector terminations provide a hydraulic connection between a control unit and the tubes. The filter is mounted in the tubes by means of an adapter which also provides a seal between inlet and outlet sides of the filter. Holes are provided in the connector terminations and the end plates to enable selection of the path of fluid in the water treatment elements.

Abstract: An improved fluid filtering apparatus having an inlet, an outlet, a sealed housing, an outer bag within the housing, an inner bag generally concentric to and suspended within the outer bag, a filtering medium retained inside the outer bag and outside the inner bag and a flow path which channels the fluid radially inward through the outer bag, the filtering medium and the inner bag to a channel in a perforated tube which supports the inner bag. The apparatus is designed to permit the fluid pressure to radially compress the filtering medium to substantially increase the filtering effect.

Abstract: An apparatus for use in conjunction with a pressure vessel, having a tubular conduit extending into the interior of the pressure vessel. The outer end of the conduit is rigidly fixed to one end of the pressure vessel in a pressure-tight connection. The inner end of the conduit is attached to a saddle at the other end of the pressure vessel, where the saddle is adapted to slidably receive the conduit such that upon expansion of the pressure vessel due to pressurization, the conduit will move independently relative to the saddle.