Abstract: A device for filtering fluid includes a hollow housing having a fluid inlet and a fluid outlet. A filter element formed of fluid permeable material is disposed within the housing for filtering fluid entering the fluid inlets, the fluid passing through the element and out the fluid outlet. The element has a generally cylindrical configuration with the permeable material forming a plurality of elongated, radially extending pleats. The pleats are supported by spacers having a plurality of blades attached to a web with channels therebetween. The element is used as a septum for supporting a diatomaceous earth precoat. A regeneration piston creates fluid flows within the filter that cause the element to flutter, thereby displacing DE precoat from the septum for regeneration.

Abstract: An end-of-life indicator comprising a housing having a chamber therein and attachable to the water treatment device, a diaphragm disposed within the chamber, a rotatable cap having indicia disposed thereon adapted to cooperate with the housing, a spring device for rotating the cap with respect to the housing, an escapement device for regulating the rotational displacement of the cap and means for resetting the cap to a start position. The chamber is arranged for the ingress of water into the water treatment device to pressurize the chamber and the egress of water from the water treatment device to depressurize the chamber, the ingress and egress of water defining one fill cycle. The diaphragm is arranged to be moved by the pressurizing and depressurizing of the chamber. The escapement device are arranged to cooperate with the diaphragm and the spring device whereby predetermined incremental rotation of the cap is provided during each of the fill cycles.

Abstract: A device for filtering fluid includes a hollow housing (10) having a fluid inlet (26) and a fluid outlet (28). A filter element (50) formed of fluid permeable material is disposed within the housing (10) for filtering fluid entering the fluid inlet (26), the fluid passing through the element (50) and out the fluid outlet (28). The element has a generally cylindrical configuration with the permeable material forming a plurality of elongated, radially extending pleats (98). The pleats are supported by spacers (81) having a plurality of blades (102) attached to a web (106) with channels (104) therebetween. The element (50) is used as a septum for supporting a diatomaceous earth precoat. A regeneration piston (76) creates fluid flows within the filter that cause the element (50) to flutter, thereby displacing the diatomaceous earth precoat from the septum for regeneration.

Abstract: Biological fluid processing assemblies having a gas inlet and/or a gas outlet are disclosed.

Abstract: A biological particle filter has an upper body with an interior chamber for receiving a suspension to be filtered, the upper body having a central axis and a lower end with a bottom surface lying in a tilted plane forming an angle of between about 75.degree. and about 85.degree. with the central axis. A lower body has a chamber for receiving the lower end and bottom surface of the upper body with an upwardly facing annular support surface. The upwardly facing support surface lies in a plane parallel with said bottom surface. A passage extends downwardly below the screen for carrying away filtered suspension. An air inlet passage extends generally radially in at an upper end of the downwardly extending passage. A filter screen is between the bottom surface and the upwardly facing support surface and lies in a plane parallel with the tilted plane of the bottom surface, the tilted plane and the air passage promoting flow of filtered suspension through and away from the filter.

Abstract: A water purification system utilizes a radial filter and an ultraviolet lamp in a small, portable, countertop housing. A standpipe is positioned between the filter and the ultraviolet lamp to control the flow of water so that it flows along substantially the entire length of the UV lamp. The lamp is made integral with a quartz-tube covering and a threaded cap and connector to enable replacement of the UV lamp assembly. The housing encompassing the filter system is also easily disassembled to enable cleaning of the housing and replacement of the filter. A pressure vent is provided in the housing cover to equalize pressure and provide for a water level differential when the filter is disabled. A UV lamp indicator is included to show that the lamp is in operation.

Abstract: Embodiments of a filter cartridge for a sports bottle are shown and described. Each embodiment has a member for containing or attaching to a filter media and having a means of securing the cartridge inside the bottle neck without requiring modification of the bottle or bottle cap. The preferred cartridge includes a generally cylindrical cup or ring for holding media, and an extension that fits between the cap and the bottle neck to secure the cartridge in place while preserving a water-tight seal. The extension has a slanted inner surface that diverts the cap's knife edge inward slightly and then seals with the outside surface of the knife blade. As the cap is installed and the knife presses down against the extension, the knife forces the expandable or flexible extension outward slightly to seal against the neck.

Abstract: The invention is of an improved pool skimmer basket which provides means by which water is vented through the basket, even when the strainer orifices are clogged. Applicant's basket is fitted with a centrally positioned vent tower which extends from the bottom of the basket, through its interior space, and slightly above the top rim of the basket. When the basket requires servicing, it may easily be removed from a skimmer well without shutting off the pool's vacuum system. The vent orifices in the vent tower allow water to pass into the hollow of the vent tower, and out through the bottom of the basket thereby bypassing the clogged strainer orifices and relieving the suction against the basket. Ease of removing the basket prevents handle and basket breakage and with it the need for the pool owner to "fish" the basket (with its unknown and, perhaps, dangerous contents) from a skimmer well.

Abstract: A bottle for dispensing a liquid particularly intended for cosmetic, dermatological, or pharmaceutical applications, or any perfume product. An opening of the bottle is connected to a dispensing head provided with an airless pump, with a valve and with a cap. All or some of the walls of the bottle are made of a plastic having a very high air permeability so as to allow air to pass through the walls of the bottle.

Abstract: A filtration device for filtering and cleaning water to be supplied to a water tank comprises a main body having an upper end opening selectively closed by a lid mounted thereon in an installed state, a filtering unit detachably disposed in the main body, an air exhaust element communicating with an inside and outside of the main body, a water inlet connected to the main body, a feed water pipe connected to the water inlet for supplying water into the main body, a drainage pump for draining clean water cleaned up by the filtering unit, a water outlet operatively connected to the filtering unit to supply the cleaned-up water to the water tank, and a flow rate control unit, which is detachably incorporated into the main body and is connected to an inner portion of the water inlet, for controlling a flow rate of raw water, which is introduced from the water inlet to the main body, in a manner that a water level of water contained in the main body alternately has a high-tide water level, at which the filtering un

Abstract: An in-line liquid filtration device useable for filtration of blood, blood products or the like includes a housing having an inlet port, an outlet port, at least one filter element disposed in the housing between the inlet port and outlet port so as to filter liquid which flows into the filtration device via the inlet port. The filter element divides the housing into a first chamber and a second chamber. The device allows gases to vent the filtration device through the outlet port. The means may include a flow deflector within the first chamber and/or the second chamber. The means may also include a channel, preferably spiral, within either the first chamber and/or second chamber. The filtration device allows air therein to be purged downstream into either an air collecting bag or into the blood receiving bag without the manipulation of the height of the filtration device or the blood receiving bag.

Abstract: A method of manufacturing a fluid filter comprising: (a) providing a cone having a tip end and an open end and made of a filter material; (b) providing a support element having a plurality of concentric annular members mounted on a base and having outermost and innermost concentric annular members; (c) aligning the central axes of the cone and the support element with the tip end of the cone closest to the support element; and (d) inserting a portion of the cone into a circular area between two concentric annular members by placing a forming sleeve inside the cone and inserting the forming sleeve between the two concentric annular members, the concentric annular members being generally cylindrical and having an interior and an exterior.

Abstract: A liquid filtration device useable for removing leukocytes from blood is disclosed. Located in-line on the upstream side of the filtration device is a vent device which is configured to allow liquid being filtered to flow therethrough and creates a pressure head sufficient to prevent air from entering the vent until the fluid flow therethrough stops and thereby allows air to automatically enter the vent to allow the air to drain liquid through the filtration device. The vent minimizes air entering the filtration system during the flow of liquid flow therethrough while automatically allowing air to enter the system and thereby drain the system when the flow of fluid stops.

Abstract: A disposable sterile apparatus (1) for blood filtration with a system for the optimization of blood recovery in the passage from one pouch to the next, having a main tube (4, 8, 13, 18, 19) containing sterile air, one end of which is designed for the connection to a first container (pouch) (2) containing the liquid to be filtered and the other end of which is connected to a second empty container (pouch) (20). The foregoing tube (4, 8, 13, 18, 19) includes at least one filter (12) being arranged in the flow of the liquid. The apparatus (1) contains a tube (7) for the return of air from the second (20) to the first container (2) acting to equalize pressure of the liquid at the two extremities of the main tube (4, 8, 13, 18, 19) after the liquid has been filtered. The filter (12) features two interior semi-chambers with filtration material separating them. The first semi-chamber has an inlet port while the second semi-chamber has an outlet port and a venting port.

Abstract: A water treatment apparatus uses a removable, disposable cartridge having an internal mesh structure. A permanent heater heats water fed to the cartridge. Precipitated solids collect on the mesh surface provided temperature and residence time are appropriately maintained. The heat breaks down the bicarbonate hardness of the water thereby depositing carbonates on the mesh surface and heavy metals will be codeposited due to the resultant change in pH. The cartridge has a head-space for collecting entrained gasses such as volatile organic compounds, chlorine and air. Water sterility is achieved by heating the water over an appropriate period of time. Turbidity is removed within the cartridge due to settling induced by the low fluid velocity controlled by a controller and by a filter provided at the outlet of the cartridge. The filter will become blocked when bicarbonate hardness is carried over forcing a user to replace a spent cartridge.

Abstract: To simplify the venting of a hydraulic circuit comprising a supply of hydraulic fluid, which is made available to a hydraulic consuming device via a pump, and a return filter comprising a filter housing and a filter element for filtering the hydraulic fluid returning from the consuming device in a return line, it is suggested that the return line comprise prior to entering the return filter a first pressure-maintaining valve which allows the return of the hydraulic fluid to the return filter only when a predetermined first pressure value is exceeded, that the return line be connected upstream in relation to the first pressure-maintaining valve to a venting device leading to the atmosphere and to a bypass line which contains a second pressure-maintaining valve and opens into the supply, wherein the second pressure-maintaining valve opens only when a predetermined second pressure value is exceeded and allows the return of the hydraulic fluid past the return filter to the hydraulic fluid supply, wherein the seco

Abstract: A combined venous and cardiotomy blood reservoir is provided that includes a rigid shell having a top, a bottom, and a continuous side wall. The top and bottom walls are connected to the continuous side walls so as to define a reservoir for venous and cardiotomy blood. A double column structure is provided within the blood reservoir, the first column for receiving and degassing venous blood, the second for receiving, filtering and defoaming cardiotomy blood. The venous blood filtering and defoaming components can include a top venous screen plate, a bottom venous screen plate or stand and a perforated venous cage captured therebetween. The venous column is of generally D-shape and has a double screen structure including an inner microscreen and an outer microscreen received respectively on the inside and outside of the perforated venous cage.

Abstract: An oil supply and return tube structure for oil tanks in cars and ships includes a base having a large oil return hole, a large oil intake hole, a small oil intake hole, a small oil return hole, an air inlet and a float hole to allow dimensional and wavy filtering of oil in the oil tank. By means of a float in conjunction with a sensor in a float shaft, the oil level may be detected. An air discharge valve is provided for adjustment of air pressure in the oil tank. A sinuous tube is provided to protect the sensor in the float shaft.

Abstract: Leucocyte depletion filter assemblies decrease the leucocyte content of a leucocyte-containing liquid at a flow rate of greater than about 25 milliliters per minute. These filter assemblies are suitable for use in an extracorporeal circuit. Methods for removing leucocytes and other deleterious matter are also disclosed.

Abstract: A filter is provided for use with an in-tank fuel pump for an internal combustion engine. The filter is disposed within a fuel tank and includes a main filtration chamber connected to an inlet of the fuel pump and a return fuel chamber connected to the engine for introducing thereto return fuel from the engine. The main filtration chamber has an upper side peripheral wall formed from a meshed filter medium. The return fuel chamber is connected to the main filtration chamber in such a manner that the upper side peripheral wall of the main filtration chamber serves as a partition wall between the main filtration chamber and the return fuel chamber. In one embodiment, the return fuel chamber has a peripheral wall formed from sheet or plate impermeable to fluid.

Abstract: A remover unit for use in a circuit for removing at least leukocyte from blood or blood preparations, which comprises a remover includes a housing having a blood inlet, a blood outlet, and a filter interposed between the blood inlet and the blood outlet, and at least one air vent having a cap for opening and closing the air vent to ambient atmosphere. With the air vents having such a cap, the removal of air in the course of priming the remover, the operation of starting or stopping filtration, the recovery of residual liquids in the remover and the removal of air from the recovery bag can be facilitated. The filter includes a three-dimensionally reticular, porous member with continuous open pores having a most frequent pore diameter to a number average pore diameter ranging from 1.5 to 2.5.

Abstract: Apparatus for removing air bubbles from blood and from a dialysate solution are described herein. In one cassette-style embodiment of a blood debubbler, the debubbler includes front and rear covers, a fluid circuit board between the front and rear covers and defining a blood chamber between the fluid circuit board and the front cover and an air chamber between the fluid circuit board and the rear cover, and a microporous membrane separating the blood chamber from the air chamber. A support means is provided for supporting the microporous membrane from the air side of the membrane. A pressure sensor is provided within the front and rear covers for measuring the blood pressure in the blood chamber. The debubbler has a blood inlet port and a blood outlet port for conducting blood to and from the blood chamber. An air port is provided in communication with the air chamber, which allows for air passing through the microporous membrane to escape.

Abstract: A filter jug to contain water or other liquid, the jug comprising a first compartment to receive liquid and a second compartment to hold filter liquid to be poured from an outlet of the second compartment and a filter chamber through which liquid must pass from the first compartment to the second compartment.

Abstract: A liquid treatment mechanism may easily be snapped on, or otherwise attached, to the neck of the single orifice bottle, such as a standard five gallon water bottle. An end cap is connected to a first tube of the liquid treatment mechanism, the liquid treatment element (such as activated carbon) disposed in the first tube and extending from the second end of the first tube to a termination position near, but spaced from, the first end of the first tube. A liquid inlet allows for the passage of liquid from exteriorly of the first tube into contact with the liquid treatment element. A dispensing tube (which may include a cyst or other particle filter) is disposed adjacent the first end of the first tube and extends from the liquid treatment element. An air inlet (e.g., a free about 0.02-0.1 inch diameter hole) is disposed in the first tube near its first end and exteriorly of the dispensing tube. A sheath of porous material may wrap the activated carbon, which may be either in hollow tubular or block form.

Abstract: Method for filtering treated water and apparatus to practice the method. The method taught herein consists of filling a first container with water, attaching a special filter apparatus thereto and finally attaching a second, empty bottle to the filter apparatus. When the conjoined containers and filter apparatus are inverted, the water in the first container, now atop the filter apparatus passes through that apparatus and into the second container under the impetus of gravity. Air displaced from the second container by the transfer of water therein is exchanged into the first container by means of a vent located in the body of the filter apparatus. The apparatus taught herein comprises a filter body having disposed within the previously discussed vent, at least one filter element and a check valve to preclude the unwanted re-filtration of previously filtered water.

Abstract: An apparatus is provided for preventing the retrograde movement of a prescribed fluid away from a patient during use of an air eliminating filter in intravenous therapy. Such retrograde fluid movement is prevented by employing at least one vented valve assembly to prevent the displacement of air into a proximal chamber of an air eliminating filter.

Abstract: A blood filter for use in filtering blood having side walls, a top, and a bottom joined to the side walls defining an axis with a filtration element surrounding at least a portion of the axis is disclosed. A delivery conduit delivers blood to the interior of the filter at an angle extending upwardly away from a plane which is perpendicular to the axis of the filter to form a vortex which is offset from the filter axis for release of entrapped air through an overlying top vent offset from the central axis, and an exit conduit connected to the interior of the filter element allows blood to flow from the filter element to an exit opening.

Abstract: A septum adapted to be pre-coated with a filter and/or chemical treatment composition is formed of a tubular core member having a top and a bottom end. A plurality of top openings is provided in the core member immediately adjacent to the top end. A short actual length portion of the tubular core is impervious adjacent to the plurality of the top opening. The balance, extending for the major portion of the length of the tubular core is perforated. A multi-layer filter screen is positioned about the exterior of the tubular core. A tubular air release shield is positioned on the filter screen having a length to substantially extend from the tubular core top to cover the top openings in the tubular core and the tubular core impervious portion. A vent opening is provided in the air release shield. An end fitting closes the top end of the tubular core.

Abstract: Methods and devices are disclosed for passing a first parenteral fluid through a first fluid flow path through a fluid treatment arrangement, passing a second parenteral fluid through a separate and isolated second fluid flow path through the fluid treatment arrangement, and passing the first parenteral fluid through the separate and isolated second fluid flow path through the fluid treatment arrangement.

Abstract: A treatment system is described for treating waste water, comprising a container having an upper and a lower portion, at least one elongated hollow casing within the lower portion of the container, inlets, openings, or vents for aerating the treatment system and at least one distribution system for distributing the waste water entering the container into at least one treatment chamber defined by the casing. A combination of a septic tank and a treatment system is also described.

Abstract: A filtering apparatus comprises a housing having a blood inlet and a blood outlet as well as a vent which are formed protrudingly from the housing. A filtering element is provided inside the housing to partition the inside of the housing into a first space and a second space. The filtering element is made from a porous material folded to have a plurality of pleats, the pleated material being arranged to form a hollow truncated cone with the pleats radiating outward. The opening at the top portion of the filtering element is sealed with a filling material. The filling material has a bottom surface that includes a central portion which protrudes into the second space, and this allows a pleat intersecting portion at the outer circumference of the bottom surface to have an inclined surface with respect to the horizontal.

Abstract: A filter basket and filtration media for an inverted bottle type water dispenser which is disposed below the inverted bottle, depending from the collar of the water reservoir into the water reservoir and receiving the neck of the bottle, so that all the water discharged from the bottle passes through the filter basket in a downward direction. The filter basket has an inverted conical upper section which funnels all the water which is drained from the bottle to a filtration compartment at its lower section. The filtration compartment remains submerged in water. The filtration compartment contains the filtration media and discharges the filtered water therefrom directly into the water reservoir. Air released in the spigot when it is opened rises upwardly through the filtration media to be received in the bottle. The filtration media comprises an aluminosilicate gel with pore sizes in the range of sixty to two hundred and fifty Angstroms which provides for rapid flow of water and air therethrough.

Abstract: A system for collecting and processing donated blood comprises a first porous medium interposed between a blood collection bag and a satellite bag and a second porous medium interposed between the blood collection bag and another satellite bag. The porous media are leucocyte depletion media. The system may also include one or more of the following: a red cell barrier medium, a separation medium, a gas inlet, and a gas outlet. The system can be used to centrifuge whole blood into one or more components, and includes a means for protecting the system during centrifugation.

Abstract: A filter assembly, particularly for use with a plastic bottle having an open neck with an inside diameter of about 50 mm or less (e.g. about 25 mm), includes a tube of filtering material connected to one surface of a cap while a valve extends from an opposite surface of the cap. The tube is preferably of filtering material such as activated carbon with plastic binder, having a substantially continuous liquid-porous sidewall, a hollow interior, a first closed end, and a second open end. The tube is operatively connected to the cap second surface at the tube second open end by sonic welding, a mechanical connection, or adhesively. The cap has a fitting portion for cooperating with the bottle neck, such as internal screw threads or a snap portion. The valve may be a reciprocating valve, a baby bottle nipple, or a spray device. A biocidal medium may be disposed within the hollow interior of the filter tube, and the tube may be wrapped with a filter material having a pore size of about 1-4 microns.

Abstract: A disposable device for filtration and collection of blood during a surgical operation, which device comprises a housing with a cup-shaped portion, in which a wall section is forming a ledge in the reservoir inside the housing. A first self-supporting filtration element for venuous blood is upstanding from the ledge, and a second filtration element for cardiotomy blood is suspended from the cover, the two elements being arranged side by side in a parallel relationship. The filter elements have an elongate, oval cross-section.

Abstract: Methods and apparatuses for removing unwanted fluid such as gas from a processed blood product are disclosed. Methods include the steps of passing a blood product from a closed first container through a functional biomedical device to produce a processed blood product, flowing the processed blood product and an unwanted fluid from the functional biomedical device to a second container through a conduit, separating the unwanted fluid from the processed blood product in the second container, preventing the flow of the unwanted fluid from the second container through the passage to the functional biomedical device by using a clamp and passing the unwanted fluid from the second container to the first container through an outlet providing fluid communication between the second container and the first container. The outlet includes a barrier medium which allows the passage therethrough of the unwanted fluid but prevents the passage therethrough of the processed blood product.

Abstract: A device for filtering fluid includes a hollow housing having a fluid inlet and a fluid outlet. A filter element formed of fluid permeable material is disposed within the housing for filtering fluid entering the fluid inlet, the fluid passing through the element and out the fluid outlet. The element has a generally cylindrical configuration with the permeable material forming a plurality of elongated, radially extending pleats. The pleats are supported by spacers having a plurality of blades attached to a web with channels therebetween. The element is used as a septum for supporting a diatomaceous earth precoat. A regeneration piston creates fluid flows within the filter that cause the element to flutter, thereby displacing DE precoat from the septum for regeneration.

Abstract: A filter is provided for use with an in-tank fuel pump for an internal combustion engine. The filter is disposed within a fuel tank and includes a main filtration chamber connected to an inlet of the fuel pump and a return fuel chamber connected to the engine for introducing thereto return fuel from the engine. The main filtration chamber has an upper side peripheral wall formed from a meshed filter medium. The return fuel chamber is connected to the main filtration chamber in such a manner that the upper side peripheral wall of the main filtration chamber serves as a partition wall between the main filtration chamber and the return fuel chamber. In one embodiment, the return fuel chamber has a peripheral wall formed from sheet or plate impermeable to fluid.

Abstract: A closed filtration system for transporting a liquid from a first container through a filter to a second container by the injection of gas under pressure into the first container. The container's filter and fluid conduit are attached to a common housing. The housing is provided with gas and liquid channels for each container. Ingress and egress tubes extend from the channels into the containers to permit the transfer of liquid from the first container to the second container.

Abstract: A portable drinking water filtration apparatus for filtering and purifying water comprises a housing, a chamber formed inside the housing having an inlet opening, a first outlet opening, and a second outlet opening, filtration media positioned inside the chamber between the chamber inlet opening and the chamber outlet openings, and a pump mounted on the housing for forcing water through the filtration media, the second chamber outlet opening being in contact with the first chamber outlet opening for venting air as water is forced through the filtration media and discharged from the first chamber outlet opening and for discharging water from the chamber when the first chamber outlet opening is plugged. A plurality of bottle connection members are formed on the housing adjacent to the first chamber outlet opening for connecting the housing to a variety of different sized bottles.

Abstract: A system for treating wastewater and improving the quality of wastewater effluent by preventing solids from being discharged in the effluent is disclosed. Wastewater having a concentration of waste solids flows into a wastewater collection container through a waste-water inlet and solids are allowed to distribute into a lower horizontal sludge layer and an upper horizontal scum layer with a horizontal layer of liquid therebetween. A substantially upstanding elongate tube is immersed in the wastewater within the container and the interior of the tube is exposed to the horizontal layer of liquid through a plurality of inclined slots in the tube. Liquid flows from the horizontal liquid layer through the slots into the interior of the tube and thereafter through a liquid effluent outlet of the container. Preferably, the slots extend vertically along a majority of the depth of the wastewater in the container.

Abstract: A filter for aquarium operating in accordance with the lifting-lowering principle comprises a housing with at least one filter compartment for a filter material, a pump which aspirates water after passing through the filter compartment through a suction conduit and supplies the water back into an aquarium, at least one auxiliary chamber supplied with water and a float-controlled valve device controlling an outlet of the auxiliary chamber and communicating with the suction conduit, an auxiliary housing in which the auxiliary chamber is provided and supplied with water filtered after passing of the filter compartment in accordance with the principle of communicating pipes. A passage which is connected with the suction conduit has a valve opening which is alternatingly closeable and openable by a float-controlled valve closing member of the valve device.

Abstract: A gravity percolation water purifier assembly. The assembly includes a covered storage container having a dispensing spigot. A flanged filtration chamber is supported beneath the cover to receive untreated water. A porous filter cartridge is sealed to an outlet port. A purifier cartridge is threaded to the outlet port and supports multiple fibrous spacers and treatment chambers containing beds of treatment media, including a multi-valent iodine media, granular activated carbon, and a halogen scavenger media. In one purification cartridge, water passes from multiple inlet ports at an inlet bore through adjoining concentric chambers and to the storage container via outlet ports at the periphery of the purifier cartridge.

Abstract: A fecal parasite concentrator which has a cylindrical body (20) with connections for a sample vial (24) on one end and a centrifuge tube (28) on the other. An integral filter (36) is disposed within the body at right angles coaxially covering the cross sectional area of the hollow body. The filter contains a series of closely spaced square openings for filtration of a liquid diluted fecal specimen. A hollow stem (40) with truncated end (44) extends upwardly from the filter and a number of geometrically shaped orifices (46) permit air to pass therethrough when the diluant specimen flows through the filter.

Abstract: A re-usable piston filter including an elongated tubular barrel member with a closed lower end and an open upper end, an elongated tubular piston member having an open upward end and a fluid-permeable lower end, and filter means detachably secured to the lower end of the piston. Downward movement of the piston in the barrel forces liquid in the barrel through the filter and into the tubular piston. An air valve in the barrel can be opened to enable the piston to be withdrawn from the barrel. The filter at the lower end of the piston can be changed or removed as desired.

Abstract: Disclosed is an apparatus for refining waste water. The apparatus includes a housing having an inlet for receiving the waste water and an outlet for delivery of refined water; a cylindrical drum member rotatably mounted in the housing, the drum member having a radial thickness t between inside and outside surfaces thereof, a multiplicity of circularly cylindrical passages being formed in the drum member, the passages having a passage diameter d of approximately 0.75 inch, at least a portion of each passage terminating with the outside surface at a corner radius r of not more than approximately 0.002 inch; a vent for admitting air into the housing; and a drive for rotating the drum to a peripheral speed of at least 1000 feet per second, whereby molecules of the waste water are physically separated from the contaminants for forming the refined water, the refined water flowing from the outlet.

Abstract: A kit for preparing batches of filtered water includes a container, a reservoir/funnel and a filter cartridge. The reservoir funnel is dimensioned to conform to a predetermined surface of the container to fit thereon during storage of the kit and the reservoir funnel further includes a tapered outlet designed to cooperate with the filler opening on the top of the container so as to be rigidly supported by the container. The funnel/reservoir includes a well into which a cartridge carrying a filter media can be inserted. The configuration is such that water poured into the funnel/reservoir must pass through the filter cartridge before entering the container.

Abstract: Processes and systems are provided for treating parenteral emulsion-containing medicament fluids are provided.

Abstract: A liquid filtration device useable for removing leukocytes from blood contains a first chamber which is in fluid flow relationship with a second chamber. Filtration elements separate the first chamber from the second chamber so that liquid flowing from the first chamber is filtered thereby prior to entry into the second chamber. A passage leads from the second chamber into the first chamber and a hydrophobic filter may be used to prevent liquid from the first chamber from flowing through the passage into the second chamber while allowing air to flow therethrough. An outlet is located in the second chamber, preferably at the bottom thereof. A second outlet may be located within the second chamber and may be placed in fluid flow relationship therewith by a conduit or the like.

Abstract: Systems and methods of collecting blood cells, substantially free of undesired matter, use a first container, that forms a part of a blood collection system, to initially collect a quantity of blood cells. A filtration system is then attached to the first container. The filtration system includes a second container, a first fluid path that leads to the second container through a filtration device, and a second fluid path that leads to the second container bypassing the filtration device. The blood cells are conveyed from the first container through the first fluid path and filtration device and into the second container to separate the undesired matter from the blood cells. The blood cells, now substantially free of the undesired matter, are then conveyed from the second container through the second fluid path, bypassing the filtration device, and back into the first container. The filtration system is then detached from the blood collection system.