Abstract: Filtrate separating device having a pair of walls connected by a frame defining a receiving space for sludge to be filtered. The walls being displaceable away from one another, and made of a flexibly deformable liquid and gas impermeable material.

Abstract: The present invention relates to an oil filter (1) for internal combustion engines, which is preferably used in secondary oil circuit in addition to a conventional oil filter. The oil filter comprises a filter housing (2a, 2b, 3o, 3u) in which a filter element (5) that consists of a roll of absorbant paper that is wound about a rod (4) is installed. In order to simplify production and inventory management, the present invention proposes that the oil filter be configured as a set of elements that comprises the body sections (2a, 2b) and caps (3o, 3u) and a rod (4) with the rolled filter element (5). The volume of the oil filter can be matched to a particular application by connecting a plurality of body sections (2a, 2b) with an appropriate number of rods (4).

Abstract: A filter cartridge for use in a fluid filtering system, constructed to induce rotational flow in the unfiltered fluid, includes a pleated filter sleeve in which the individual sleeves are slanted relative to the sleeve circumference in a direction opposite to the direction of the rotational flow fluid. The slanted pleats can be constructed by creasing a sheet of filter media at alternatingly shorter and longer widths to form pleats having relatively shorter front legs and relatively longer back legs. The shorter front legs bias the pleats in the counter-rotational direction. Apparatus for manufacturing the pleated sleeve includes a pleater roll having pleater wires spaced to form the alternatingly shorter and longer pleat widths.

Abstract: A coreless filter cartridge, and apparatus for adapting a filter housing to support such coreless filter cartridges. A coreless filter cartridge has an elongate array of filtering material which defines an interior cavity. The array is surrounded by a sheath of perforated paper. The ends of the array and sheath are embedded into polyurethane end-caps. The filter housing is adapted to accept coreless filter cartridges by adding a rigid, perforated standpipe that uses a bushing to fit over a housing fluid egress spud. The coreless filter cartridge is placed over the standpipe and secured in place by a retaining spider or by the housing cover, which exerts bias via a compression spring and compression cup. Gaskets on each end-cap prevent fluid by-pass and a stand-off cup is located near the base of the standpipe to provide a surface against which the end-cap gasket can seat.

Abstract: A reinforced gas filter conduit where the conduit contains an interior stiffening band attached to a securing band which is adhered to the interior circumference of the conduit.

Abstract: The fluid filter (10) for fuel has a wound filter element (17) arranged in the housing (11) surrounded on its bottom end face (22) by a funnel-shaped welded-on cover cap (18). The cover cap (18) made of thermoplastic has an annular welding surface (25) which extends perpendicularly relative to the longitudinal axis of the filter and which is welded at least to the outermost complete turn (29) of the winding (17). An adhesive-free connection (32) between the wound filter element (17) and housing (11) thereby is formed. The preassembled wound filter element (17, 18) which can be handled easily is suitable for cold assembly on universal production lines and for different models.

Abstract: A filter module (11) comprises a housing divided internally by a partition (14) into two compartments (15, 16). At least one hollow cylindrical filter element (12) is housed in one of the compartments, the or each filter element fitting about an opening (19) in the partition (14). A filter assembly (10) comprises a plurality of filter modules (11) mounted in a fluid flow line (13) such that incoming fluid enters one of the compartments, flows through the walls of the filter elements and filtered flow emerges from the other compartment.

Abstract: A plate assembly for performing multiple filtrations with the use of a vacuum offers advantages for small samples due to the construction of its component plates, which include an upper plate with apertures forming sample wells, a membrane sheet forming the floor of each well, a collection plate with individual wells underneath the membrane sheet, aligned with the upper plate apertures, and a drop guide plate between the membrane sheet and the collection plate to guide and force small quantities of liquid downward from the membrane into the collection wells. The arrangement permits extremely small quantities of species on the membrane to be drawn into the collection wells without dilution, and avoids cross contamination between collection wells.

Abstract: A vacuum filter assembly for filtering a feed liquid includes a filter membrane held in a cover attachable to the filtrate container. The cover is formed with a feed liquid nipple on one side of the filter membrane, a filtrate outlet tube on the other side of the filter body, and a vacuum port. A portion of the surface of the membrane is non-wettable by the feed liquid to facilitate restarting the filtration if the filtration is interrupted. Also, the vacuum port includes a vacuum tube covered at its end by another membrane having pores permeable by air but not by the feed liquid, for fixing the maximum level of the filtrate within the filtrate container.

Abstract: Disclosed is a filtration process for the removal of undesired substances from dry cleaning fluids. Illustratively, a cylindrically-shaped batt of a long-fiber synthetic washable fabric filter is attached to a spoke-like rigid frame and the fabric-frame assembly is placed into a filter housing having a fluid collecting center rod. Contaminated dry cleaning fluid is introduced to the housing, passed inwardly through the fabric, and a contaminant free permeate is collected by the fluid collecting center rod.

Abstract: A filtering vessel adapted to accommodate a filter bag for filtering a liquid under pressure. The vessel comprises a top open cylindrical housing having a sidewall and a bottom with an outlet port, and a basket supported within the housing to retain the filter bag therein. A jacket is formed to surround a top portion of the housing to form therebetween an annular fluid passage which is open at its upper end and communicates with an inlet port formed at the jacket for coupling a pressurized liquid supply line. Also included in the vessel is a top cover detachably mounted on the housing and the jacket to close the top opening of the housing as well as that of the annular fluid passage. The top cover is formed in its lower surface with peripheral openings and a center opening which are intercommunicated within the top cover.

Abstract: A filter bag which is for use in a liquid filter and which includes a liquid impervious shape-retaining edge portion defining the opening into the filter bag. The edge portion includes an annular inverted V-shaped part which terminates in an annular upturned lip part. The inverted V-shaped part of the filter bag edge portion allows the bag to be placed over a protruding upwardly directed lip in the filter housing while, optionally, the upturned lip part of the bag's edge portion permits the bag to be fitted into the filter housing with the lip part being restrictively fitted between a shoulder or support and an overlying lip formed in the filter housing. Further, the upturned lip part of the filter bag can be wedged into a filter housing to secure the bag independently of the filter top.

Abstract: To fasten filter covering (4) of a drainage element (2) for a fruit press, rod-shaped, flexible core (3) of drainage element (2) carries an elastic sleeve (11) on its end. Filter covering (4) is pulled over sleeve (11) and is held by an O-ring (13) in a annular slot (14) of sleeve (11). The end of drainage element (2) is detachably fastened in a holder (6) that is placed in container wall (5) of the fruit press to be axially immovable and that overlaps filter covering (4) and O-ring (13). During pulling action on filter covering (4) in the direction of arrow (17), annular slot (14) and O-ring (13) are deformed so that O-ring (13) acts as a wedge and solidly braces filter covering (4) against sleeve (11).

Abstract: A molten metal filter includes a refractory plate having an opening therethrough. A refractory filter element is attached to the refractory plate and projects therefrom, the exterior surfaces of the filter element generally defining a rectangular prism. The filter element is hollow so as to define an interior cavity. The filter element includes an opening in that portion of the filter element that is attached to the refractory plate, the opening surrounding the opening in the refractory plate such that fluid communication is established between the cavity and the opening in the refractory plate. In the preferred embodiment, a plurality of filter elements are provided, which filter elements are connected to the refractory plate such that adjacent sides of the filter elements are oriented vertically and are disposed generally parallel to each other.

Abstract: A filter adapted to be connected to a suction hole of an intank pump provided in a tank for storing a liquid and adapted to pump the liquid out of the tank. The filter includes a mesh bag and an elastic frame surrounded by the mesh bag for elastically pressing a lower portion of the mesh bag against a bottom inner surface of the tank. The elastic frame is formed with a flat plate adapted to uniformly press the lower portion of the mesh bag against the bottom inner surface of the tank. Accordingly, local wearing of the mesh bag due to the pressure applied thereto by the frame can be prevented.

Abstract: A well for use in microtitration and/or microfiltration procedures. The well has a membrane in the bottom that is retained on a lower lip by means of a ring that is itself retained at a predetermined position in, and along the wall of, the well.

Abstract: A coffee grounds disposal and strainer arrangement adapted to be utilized in conjunction with the operation of an automatic coffee brewer. A lid member covering the receptacle receiving the hot liquid or water and entrained spent coffee grounds from the coffee brewer is equipped with a plurality of venting apertures which will allow steam generated by the hot liquid in the receptacle channel to escape upwardly through the apertures. A U-shaped channel structure is formed on the upper ends of the receptacle sidewalls receives the lid flange. Hereby, any condensate liquid flowing down the flange from the inside of the lid member, which condensate is formed from steam emanating from the hot liquid in the receptacle will tend to collect in the U-shaped channel intermediate the lid member and the receptacle, thereby preventing such liquid or water from flowing outwardly and down the receptacle onto the table or counter top.

Abstract: A filtration unit, especially for medical, microbiological, biochemical, immunological or molecular biology specimens. The filtration unit includes a specimen-receiving vessel (12), a filtrate vessel (16) and a filter member (22) containing a filter element (24, 26) arranged between the specimen-receiving vessel and filtrate vessel. In order to obtain an automatic pressure compensation in a closed system the filtrate vessel inner space (28) is connected with the specimen-receiving vessel inner space (30) by at least one pressure compensation channel (50) bypassing the filtration liquid (48). The pressure compensation channel extends axially along a side wall of the specimen-receiving vessel and connects a first discharge point in the filtrate vessel inner space above the maximum filtrate level with a second discharge point in the specimen-receiving vessel inner space above the maximum filtration fluid level while bypassing the filtration unit.

Abstract: To simplify the assembly of filter modules 10, the supporting tube 1 which carries the filter cells 9 is constituted in two pieces. Both the upper tube piece 4 and the lower tube piece 5 contain locking elements 7 which are received in correspondingly large recesses 8, thereby making possible a safe interlock as well as a relative axial movability of the tube pieces 4 and 5.

Abstract: A high pressure filter support for liquids having low or high viscosity. The support is easily cleanable and quickly dismountable. The support comprises an annular passage defined between an outer larger tubular wall and an inner smaller tubular wall, top and bottom flat plates including quick release fastening means for sealingly joining the top plate to the outer and inner tubular walls to obtain the annular passage sealingly closed. Inlet means into said annular passage are provided. The inner wall inside the annular passage has on its surface a plurality of circumferential grooves. Each of the grooves has at least one orifice through the inner wall. The orifices are of a size commensurate with the viscosity of the material to be displaced through the orifices. An outlet means is sealingly mounted on the surface of the inner wall away from the annular passage to receive the orifices. A system for making maple syrup comprising an evaporator, a filter as defined above is also disclosed.

Abstract: A bacterial staining composition, process and apparatus for detection and quantitation of gram negative and gram positive bacteria in fluid samples are disclosed. The composition comprises a net negatively charged filter onto which bacteria are adsorbed and concentrated, an acid diluent which alters the electrostatic charge of the bacteria, thus enabling adsorption of the bacteria to the filter, a bacterial stain operative at about pH 8 to 12, and a washing reagent which enhances the diffusion of free dye away from the immobilized, stained bacterial. The color intensity at the center of the filter surface manifests the stained bacteria. It is compared to a standard color guide to determine the number of bacterial present in the fluid sample.

Abstract: In the case of a horizontal filter surface, a base plate together with U-shaped bars fixed to the surface thereof form the support for the filter surface. Between the bars, the profile legs form drainage pipes for the filtrate. The passage of the bars is used as a pipe for a heating or cooling medium. At their ends, the bars are interconnected by connecting channels in such a way that the bars form a single pipe, the heating or cooling medium being supplied by an inlet pipe connection and is removed at the end of the pipe by an outlet pipe connection. The filtrate collecting in the pipes is drained off by the drain pipe connection. The arrangement ensures a good heat transfer to the filter cake located on the filter surface and also constitutes an uncomplicated, inexpensive solution, because the bars simultaneously form the drainage pipes for the filtrate.

Abstract: A fluid filter and a method of constructing a fluid filter which will independently retain itself in a fluid passageway includes a sheet of filter media and a retainer which is attachable to one side of the filter media. The retainer may be sized to frictionally engage the walls of the fluid passageway or may be of a resilient material which allows the retainer to resiliently engage the walls of the passageway. The retainer is attached around only the periphery of the filter media with the central portion of the filter media being free with the respect to the retainer. The filter media has flexible edges which extend beyond the retainer to seal the passageway so that all fluid flowing through the passageway will flow through the filter media.

Abstract: A reusable liquid filter assembly having a housing having two internally threaded ends and two externally threaded removable end walls. Sealing O-rings are provided on the end walls to bear and seal against bevelled zones on the housing ends. A filter subassembly is positioned in the housing and centered therein by the end walls. A port is provided in one end wall for sampling the filtered liquid. The liquid filter is readily disassembled for cleaning and replacement of all of its components.

Abstract: A method for filtering a whole blood sample using a filter element constructed and arranged to block the passage of fibrous and particulate matter which may be present in a liquid sample, such as a whole blood sample, while allowing the blood cells to pass is disclosed. In one embodiment, the filter element is part of an in-line filter assembly which assembly may include two complementary mating components. One component may take the form of a coupling provided with a male threaded portion adapted to be received into and engage the female threaded portion of the complementary mating component. This complementary mating component may be another coupling or an analysis system component, such as a valve. Each complementary mating component is adapted to receive a liquid sample carrying conduit therethrough. The coupling is also adapted to receive a filter mount which holds a filter element constructed and arranged as discussed hereinabove.

Abstract: A known fuel filter is formed by a meshed body in a bag shape made of a synthetic resin while the meshed body is penetrated to form a fuel passage which is open toward the inside of the meshed body. The known fuel filter is attached to a portion adjacent to a bottom of the fuel tank for preventing water and a dust accumulated inside the fuel tank from being drawn inside the fuel filter. However, the known fuel filter has the fuel passage penetrating the central portion of the meshed body so that the degree of freedom of attachment is reduced. On the other hand, a fuel filter according to the present invention comprises a piece of meshed body being folded double, an outer flange and an inner flange respectively having a fuel passage and being connected to each other from the inside and the outside of the doubled folded portion, a swollen supporter provided integrally with or separately from the inner flange.

Abstract: A filter device having a cleanable filter element for use in an oil burner system is provided. The filter device has a housing having a chamber with inlet and outlet passages and has a filter element made of stainless steel cleanable wire woven mesh. The filter element has nylon end caps and divides the chamber into an outer annular inlet space and an inner central outlet space. The filter element end cap configuration allows the filter to be used in many different housings since the end cap has a number of specific, calculated, mating surfaces to receive each housing contact surface. A helical compression spring disposed within the filter element applies radial outward forces on the sides of the mesh cylinder to prevent collapsing of the filter element due to differential pressure caused by dirt accumulation.

Abstract: A container having a longitudinal passage is provided with a filter for collecting thereon cellular components having a particle size range of 5 microns or greater. Where the cellular components are to be harvested from a hostile environment such as voided urine specimen, the hostile environment is discharged, after passing through the filter, from the container through one end thereof to separate the cells from the hostile environment as soon as possible. The cellular components harvested on the filter are washed with a suitable media such as a saline solution and a nutrient preservative media, or fixative, such as by way of example formaldehyde is added to the container to assist in stabilizing the harvested cellular components on the filter. Where the cellular components are harvested from a hostile environment, a suitable closure may be added to one end of the container to close off the longitudinal passage before the preserving media is added.

Abstract: A combined cardiotomy and venous return reservoir which combines defoamed and filtered cardiotomy blood with venous blood in a common chamber and then passes the combined blood fractions through a second defoaming element to achieve positive mixing of the blood fractions before they exit the device.

Abstract: A disposable capsule filter extremely suited for filtering paints, inks and the like which contain an organic solvent. The filter comprises a disposable capsule accommodating filter elements and a metal holder accommodating the capsule for the purpose of preventing rupture of the capsule. The capsule is formed from a plastic material by blow molding or pressure forming. The capsule has an outwardly projecting portion in contact with a clamped portion of the metal holder.

Abstract: An apparatus for removing the ice chips which are formed when a hole is cut through the ice covering of a body of water, which ice chips are suspended in the water filling the hole, includes a thin-walled tubular body having a cross sectional size and shape corresponding to that of the hole and a one-way valve in the lower end of the tubular body which opens in response to downward movement of the body into the hole to admit the water and ice chips into the body above the valve and closes in response to reverse upward withdrawal of the body from the hole to retain the ice chips therein. In the preferred embodiment, the one-way valve comprises a butterfly valve including two semicircular wing plates which are provided with a pattern of holes to allow the water to readily drain back into the hole while retaining the ice chips thereon.

Abstract: A fluid filtering assembly has a manifold connectable to a line carrying fluid and a filter cartridge releasably connected to the manifold. The manifold has a pair of pockets that accommodate fluid inlet and outlet tubular members on the filter cartridge. Seals associated with the pockets and tubular members retain the fluid to the manifold and filter cartridge. A releasable connector holds cartridge in assembled relation with the manifold.

Abstract: Filtering element for corrosive liquids to be filtered under pressure, which displays only minimal filtrate loss when the filter is changed, consisting of a pressure-resistant, cup-shaped outer supporting body (2) and a coaxial, also cup-shaped, pressure-resistant inner supporting body (3) having bottom surfaces (4, 5), wherein a filter cartridge (6) is disposed in the annular gap open towards the top between the supporting bodies (2, 3), said filter cartridge (6) consisting of an annular base portion (17) and cover portion (18) having inlet and outlet holes (9, 10) and, if desired, rigid or flexible wall portions (11, 12) between the base and cover portions and filtering material (15) between the wall portions, through which the liquid to be filtered is pressed radially from one hollow space to the other (FIG. 3).

Abstract: An improved fluid filter medium, including a fabric member having a plurality of folds that are seamed at the top and bottom to form a fabric sleeve with pockets, such pockets being configured to enclose the leaves of a filter element frame. A tubular seal is seemed to each end of the fabric sleeve and filled with a resilient material to form a compressible seal. Each tubular seal is configured to be compressed between the central cylindrical perforated core of the filter element frame and a sealing plate or flange such that, upon compression, the tubular seal forms a seal between the sealing plates or flanges and the fabric sleeve.

Abstract: A filter for use in the filtration of molten metals comprises a ceramic foam having a gasket made from fibrous material surrounding its peripheral surface and a metallic foil, such as aluminum foil, fixed to the gasket, for example by means of an adhesive, around the outer peripheral surface of the gasket.

Abstract: This invention provides a sterilizing water-purifying reagent for removing muddiness of water to be treated or sterilizing the water to be treated as drinking water in fields or under drinking water shortage environment, and the sterilizing water-purifying reagent comprises an acidic additive containing as main ingredients various types of metal salts and nonmetal salts produced by dissolving vermiculite weathered from mica mineral or soil further weathered from the vermiculite in aqueous inorganic acid solution.

Abstract: A filtration apparatus characterized by efficiency of the precoating step and maintenance of filtration performance over a long period of time after precoating has been completed. The filter promotes parallel flow of porous precoat material along a porous septum, thereby achieving efficient stacking of this material against the septum. A dual-speed pumping system transmits the precoat material to the septum at high velocity, thereby further encouraging efficient stacking, but pumps the fluid to be filtered at a lower velocity to minimize energy consumption.

Abstract: Disclosed is a replaceable fuel filter of one integral piece of extruded, compressible filter material, cut only at its ends and provided with a plurality of longitudinally extending flutes.

Abstract: A filter for a fluid under pressure comprising a container including a filter vessel (1) and cover (2) for clamping against the filter vessel. A support basket (12) adapted to be inserted into the filter vessel includes a flange (11) having an inwardly and upwardly open profile (15, 16). A filter sealing element (18) of an annular filter bag carrier (17) may be inserted into the open profile (15). In order to obtain a complete sealing effect, particularly against the passage of the unfiltered fluid into the filtered fluid in the filter, an upwardly and outwardly open groove (19) is provided in the profiled filter sealing element (18), which groove receives an inner O ring (20).

Abstract: A fuel monitor assembly for use in testing the contamination level of a fuel sample is disclosed, including a housing having a fuel inlet and a fuel outlet, and a fuel filter capsule disposed within the housing. The filter capsule includes an inlet half and an outlet half, wherein the halves interfit to retain a membrane filter therebetween. The inlet half of the filter capsule is integrally formed with an inlet dispersion structure that radially disperses an incoming stream of fuel so as to equalize the pressure across the face of the membrane filter, thereby resulting in even distribution of contaminant particulates deposited on the membrane filter. The outlet half of the filter capsule is integrally formed with a recessed, radially symmetric grid configuration that channels fuel passing through the membrane filter to the fuel outlet, and also encourages equal pressure distribution across the face of the membrane filter.

Abstract: A filtration system for handling an array of filter wells which are open at the top and closed by a filter membrane at the bottom. The system includes a manifold chamber defined by side and bottom walls and having a support for the wells which carries the filter membranes above the bottom walls so that filtrate may be drawn through the membranes. A vacuum fitting is connected to the chamber so that a low pressure source may be applied thereto, and a sealing sheet extends over the wells and having holes aligned with the open tops of the wells so that when the low pressure is applied to the chamber, filtrate may be drawn through the membrane.

Abstract: A filter cartridge is disclosed having a pleated filter element, hollow perforated core, a lower annular end cap sealed to the bottom ends of the core and filter element and an upper circular end cap sealed to the top ends of the filter element and core. A hollow threaded nipple open at both ends extends coaxially downwardly from the annular end cap, the hollow interior of the nipple being continuous with the hollow interior of the core. A handle extends upwardly from the circular end cap.

Abstract: A portable cleaning container for use with a conventional mop and wringer for cleaning floors and other surfaces. The container includes a bucket with a drain opening formed through the bucket floor and closable by an elastomeric stopper supported on the end of a threaded drive rod extending through a threaded bore formed through a drive rod mount attached to the inside of the bucket within a stopper drive recess formed in the wall of the bucket and extending vertically from the floor of the bucket above the drain opening. A filter recess is formed in portions of the upper surface of the bucket floor to receive an interior filter having a planar portion that extends across the filter recess and a semitubular portion that extends about lower portions of the stopper drive recess to enclose the entrance of the drain opening to the bucket interior. Troughs in the planar portion of the interior filter and corrugations in the floor of the bucket adjacent the filter recess trap detritus when the bucket is drained.

Abstract: A precoat filter element for a precoat filter unit comprises a flow distributor and flow straightener. The flow distributor surrounds a filter septum and has openings through which liquid may flow. The proportion between the area of openings and the area of a wall of the flow distributor may vary along the length of the septum to distribute flow over the length of the filter septum in a predetermined manner. A flow straightener is provided at the base of the septum to reduce turbulence during precoat and filtration operations, and to reduce the occurrence of large flocs in precoat slurries during coating operations.

Abstract: This invention has an object to provide a cartridge filter which can prevent the interior of a filter housing from being contaminated when paint or ink is filtered. In this invention, a cartridge filter element is contained in a bag-like body or a cylindrical body made of an aqueous non-osmotic film.

Abstract: The disclosure describes a filter assembly comprising a manifold, a filter housing, a hollow, generally cylindrical filter element disposed within the filter housing, and a mounting ring operatively associated with the manifold and the filter housing for detachably mounting the filter housing to the manifold. The manifold includes first and second ports. The filter housing includes a side wall and an end wall having first and second spaced openings and a bore. The filter element is spaced from the side wall of the filter housing and includes and end cap. The end cap is disposed in the bore of the end wall of the filter housing and has an opening which communicates with the interior of the hollow filter element.

Abstract: A disposable filter unit (1) comprises a two-part fluid-tight and pressure-resistant housing with funnel-shaped inlet and outlet connecting sleeves (3,20). Two filter supports (5,12) are fixed in a fluid-tight and form-locking manner within the housing, and the filter element fixed between the supports. The filter supports (5,12) are essentially circular grate-shaped plates including concentrically arranged coplanar circular webs (16) defining concentrically arranged circular gaps (19) therebetween and a centrally arranged baffle plate (17). The webs and plate are fixed at their back side, facing away from the filter element, with radially extending support webs (18).

Abstract: Discloses apparatus for separating the solids from a liquid of a sludge or slurry which includes a slurry source, a slurry container receiving slurry from the source and a filter cage removably mounted inside the container. The filter cage includes a cage frame, a supported screen liner mounted within the cage and a filter liner removably fitted inside the liner. The container has a liquid drainage conduit removably connected to a suction device for removing liquid from the drainage chamber. The container is constructed and adapted to be picked up, carried about, and tilted to remove solid material deposited within the filter cage. The filter cage is constructed and adapted to be hoisted up out of the container and separately moved about and tilted to remove solids deposited within the filter cage. A liquid injection apparatus may be provided for injecting a selected amount of a flocculating agent into the slurry received into the container to cause flocculation of solid particles in the slurry.

Abstract: A disposable diagnostic plasma filter dispenser includes a low cost disposable container and a rotor drive for rotationally energizing a rotor within the container. The disposable container is particularly suitable for drawing and dispensing blood samples for clinical analysis and includes a tube shaped outer wall having a frangible dispenser outlet cover, a close fitting inner tube supporting a filter membrane and a unitary rotor disposed for axel free rotation and axial translation within the inner tube in response to energization from the rotor driver. The rotor produces vortex enhanced filtration while maintaining a flow of filter fluid through the filtration gap and creating a transmembrane pressure.

Abstract: An inline filter comprises transparent upstream and downstream halves defining truncated hollow right-circular cones whose flanged lower bases sandwich therebetween a concentric brass filter screen fixedly carried by the flanged lower bases joined together by heat-sealing. The upstream and downstream halves have respective male fittings for connection to respective upstream and downstream female couplings on an incoming water supply line for flow of such incoming water through the inline filter. The filter screen, which has an effective filtering capacity, area-wise, of almost 13 times the area of the internal diameter of the upstream male fitting, filters out and traps sand, dirt, particles and other debris carried by the incoming water. The transparent halves provide visual indication whether the filter screen is clogging up. Connecting the upstream female coupling to the downstream male fitting effects backflushing water flow to clean the filter screen.