Abstract: The filter device (10), provided for the filtration of fluids, comprises two interconnected material structures (14,16) forming a filter unit (12). The two material structures (14,16) are mechanically stable, at least one of the two material structures (14,16) being elastically deformable. The two material structures (14,16) are connected to each other at opposite connecting sites, with one (16) of the material structures forming an arch between the connecting sites. This arch has been generated by elastic deformation of the respective material structure (16) so that this material structure (16) is mechanically biased. A stretching movement of this material structure (16) is prevented by the connection of this material structure (16) to the other material structure (14) which in turn is of substantially plane configuration and is tensioned.

Abstract: A filter unit comprises a metallic supporting plate possessed of stepped through holes opening with a larger diameter in one main surface and with a smaller diameter in the other main surface (wherein the diameter ratio of larger-diameter openings to smaller-diameter openings is desired to be in the range of 1:0.01 to 1:0.5) or a pressureproof supporting plate having in one surface thereof inclined liquid flow grooves arranged in a radial pattern and concentric circular liquid flow grooves adapted to intersect the radially arranged liquid flow grooves and a membrane filter disposed on the surface of the supporting plate containing larger-diameter openings or liquid flow grooves. This filter unit is ideally used for finely dividing and uniformly sizing suspended lipid particles assuming a definite average particle size and a specific particle size distribution.

Abstract: A membrane fluid separation apparatus having a vessel, a plurality of membrane cassettes in the vessel, the cassettes including a plurality of membrane units capable of performing a fluid separation at a relatively low transmembrane pressure, arranged substantially parallel to one another with the ends of the membrane units bound in a cure binder such that the interior of the membranes are open at one or both of the bound ends, a casing comprising a frame arranged about one or more of the plurality of membrane units, such that there are two fluid flow systems which do not communicate, the first fluid flow system is in contact with the outside of the membrane units and is adapted for contacting the feed fluid with the membrane units, and the second fluid flow system is in contact with the interior of the interior of the membrane units and with a permeate chamber, the apparatus also includes means for introducing and removing the fluids, vacuum creating means, and means for removing fluid not permeating through

Abstract: A filter cartridge for use with liquids or gases which includes a back structure having a plurality of pockets formed in it and filtration granules contained within the channels. Each of the pockets includes a plurality of holes to enable water to pass through the back structure. A filter element is secured to the front of the back structure to cover the pockets. Positioned between the pockets are protruding shelves which engage the filter element. The provision of the pockets and shelves enables a uniform distribution of filtration granules to be maintained throughout the filter cartridge.

Abstract: An improved electro-coalescent/magnetic separation (ECMS) system for removing contaminants from water, including desalinization, comprises a device for exposing a stream of water to be treated to an electric field, followed by introduction of ionized coagulating substances, including ionized gases and/or metal ions, followed by plural filter stages. The first filter stage may comprise a polarizable glass, alumina, or ceramic media provided as a bed in a tank with an underdrain, so as to provide substantial residence time. A polishing filter may comprise a very fine fiber or organic gel filter element confined between relatively flexible electrically-conductive screen members and provided with a DC power supply to polarize the filter. This assembly is confined between relatively rigid, perforated members such that the filter assembly can move slightly upon backwash to dislodge caked-on contaminants or the like, while preserving the structural integrity of the filter assembly.

Abstract: The device (1) separates two components of a mixture (11) of non-miscible liquids, especially water or salt water and oils. The device (1) consists of a hollow body (2), having an inlet port (4) to feed the mixture (11) and outlet ports (5,6) to discharge the separated components, and a filter (7) formed of a loosely packed hydrophilic material (8) in fibers, and positioned between the inlet port (4) and the outlet port (5) of the separated water. The filter (7), when soaked with clean water, lets through only the water component of the mixture (11), while the oil component is repelled therefrom. The method separates the components of a mixture of non-miscible liquids, making use of the device specified heretofore.

Abstract: A recyclable filter cartridge for use in photographic processing has a main tubular housing 11 that encases a core in which a synthetic fiber filtering material 17 is located. The core is accessed by elongated slots 15, 16 formed circumferentially in an outer shell 14 of the housing 11. The slots 15, 16 allow entry of photographic processing chemicals into the core so that, under the influence of an external pump, the processing chemicals may pass through and be filtered by the filtering material 17. There is a tubular outlet 19 for exit of the filtered processing chemicals from the core and for their passage to a processing tank 35. The cartridge may be disassembled by disconnection of a stem tube 12 from the main tubular housing 11 so as to allow manual removal of the used filtering material 17 from the core and the replacement within the core of clean filtering material.

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: A sludge filtration system for separating the sludge liquids from the sludge solids. A container provides a basin for receiving and holding the sludge. Within the container, a first filter assembly, positioned proximal the container bottom, defines a first filtrate cavity. The first filter assembly is maintained below the sludge level so that a pump, in flow communication with the first filtrate cavity, provides for vacuum evacuation of the first filtrate cavity. Placing a valve in the first filtrate discharge conduit facilitates selective vacuum evacuation or gravitational evacuation of the first filtrate cavity. A second filter assembly extends about the inside perimeter of the container cavity proximal the container side walls. In addition, the second filter assembly extends from proximal the container bottom to the container top end. The second filter assembly defines a second filtrate cavity. A second filtrate discharge conduit provides for gravitational evacuation of the second filtrate cavity.

Abstract: A cell strainer to be equipped at the top of a tube for removing impurities, such as supporting tissues, speculae, etc. from a suspension of cells or tissues comprising:a) a flange to be held by the upper opening of said tube,b) a grip externally projecting from said flange,c) a section which holds a filter havingd) a frame body provided below said flange being housed in the opening of a tube,e) a filter component equipped with a frame body extending below the section holding said filter,which receives and filters said suspension, characterized in that said filter component of said cell strainer is formed of a nylon net having a pore size of 40-200 microns.

Abstract: An oil filter utilizes a thermoplastic material having oil oxidation and acidification arresting additives mounted in a casing between a particle filtering material (such as cotton fibers) and a felt pad. The thermoplastic material is desirably high molecular polypropylene in the form of rice-shaped pellets, or spaghetti-shaped strands. The additives comprise about 10-17 weight % of the thermoplastic material/additive combination, and as the thermoplastic material is dissolved by above ambient temperature oil, the additives are released. The thermoplastic material pellets or strands are formed by mixing anti-oxidation and anti-acidification additives with liquid thermoplastic material to form a mixture, extruding the mixture into spaghetti like strands having a thickness of about 0.0625-0.125 inches, cooling the strands, cutting the strands into discrete elements, and then placing the discrete elements into an oil filter held in place to contact oil and to gradually dissolve to release the additives.

Abstract: A suitable liquid-solid separator tank having a bed with a drain, surrounding sides and a dividing wall. A grate overlays the interior of the vessel, bed, and sides, and forms the dividing wall. A filter overlays the grate, extending up the sides and overlapping the side grate and covering the dividing wall. The separator is filled with a sludge which is then separated from the liquid it contains by gravity and hydrostatic pressure which force the liquid through the filter. Liquid is drained out of the bottom of the vessel and the solids are transported within the vessel. The solids are removed through a gate that may be provided in the tank, or by using a hydraulic lift system in much the same manner as a garbage truck empties a municipal dumpster. The filter is removed with the solids and usually discarded.

Abstract: A filtration system comprising a housing whose overall surface, excepting a bottom surface and an upper surface, is tightly closed, a filter medium disposed within the housing, an air jetting portion disposed within the housing at a higher location than the filter medium, and a propeller fan disposed at an upper portion of the housing and rotated by air which is jetted from the air jetting portion.

Abstract: An improved filtration device capable of filtering and storing liquid which can then be removed from the device for analysis. A top cap is placed over a filter cap such that a seal is created between these two caps. The filter cap has an opening on its bottom end which is covered by a filter membrane. A storage reservoir is created in the device when the top cap and the filter cap are sealed together. These caps are then slidably received by a vial containing unfiltered sample such that a seal is formed with the interior wall of the vial and the outer wall of the top cap. A needle with a needle housing pierces the top cap and forces the device downward which directs the sample in the vial through the filter on the filter cap and into a storage reservoir to be removed through the needle.

Abstract: A pad for cleaning up liquid spills is described which contains a porous surface covering, and an absorbent interior containing chemically reactive reagents for neutralizing noxious chemicals within the spilled liquid. The porous surface and the absorbent component would normally consist of chemically resistant materials allowing tentative spill to pass. The absorbent interior which contains the neutralizing reagents can but is not required to be chemically resilient and conducts the liquid chemical spill towards the absorbent interior containing the chemically reactive reagents where the dangerous and undesirable chemicals within the chemical spill are then neutralized as well as removed from the premises.

Abstract: A filter screen structure for a backflushed liquid filter has a screen separating the raw-liquid side of the filter from the clean-liquid side thereof, including at least one row of substantially parallel rods extending along the screen, wherein the screen is threaded between the rods, partially enveloping the rods alternatingly from the raw-liquid side of the filter and from the clean-liquid side thereof. At least some of the rods are provided with substantially circumferential groove-like recesses, facilitating the passage of the liquid from the raw-liquid side via the screen to the clean-liquid side.

Abstract: A non-woven fabric cylinder adapted for insertion within a canister of screened casing pipe that is placed in underground monitor wells to collect and contain spilled or leaked hydrocarbons such as gasoline or diesel by absorbing same upon contact. The absorbed substance is solidified within the cylinder as a rubber-like mass. The consolidated mass is contained within the screened canister, will float indefinitely and is easily retrieved and handled for disposal. The cylinder will not leech solidified hydrocarbons when exposed to pressure limits used to determine landfill suitability.

Abstract: A device to capture, contain and collect hydrocarbon fuels such as gasoline and diesel before they can be spilled or leaked from the ventilation valve or fuel intake port of the fuel tank of a vessel and on to the surface of the water during fueling operations at marine fueling facilities. The device is formed as a low-profile box with a floor section and upright wall sections having stratified layers of a textile material and a solidifying polymer enclosed within a outer envelope of textile material. A seamed area at the center of the device with slits in the textile material allows the device to circumscribe the annular conduit of a device passing through the seamed area.

Abstract: A filtering device for filtering a liquid includes a vessel having an inlet and outlet communicating with a chamber found within the vessel. A flexible, liquid permeable filtering bag is suspended within the chamber and receives liquid from the inlet, which is filtered by passing through the walls of the bag. The bag is supported away from the wall of the vessel by a liner which extends circumferentially around the bag and is provided with apertures for communicating liquid through the liner. Radially outwardly extending projections extend from the solid portion of the liner which define the apertures and engage the wall of the chamber to maintain the circumferentially extending portion of the liner to a predetermined distance from the wall of the vessel. Accordingly, passages around and over the projections are defined to thereby permit liquid fluid to communicate between the vessel and the liner to the outlet.

Abstract: An assembly for removing hydrophilic contaminants and a method of removing hydrophilic contaminants such as sodium included in an oil-state liquid using the removing assembly, which is able to remove positively the hydrophilic contaminants such as the sodium included in the oil-state liquid in each process of the plant such as a phenol producing apparatus as well as maintain a certain level of the removing performance for a long duration, consisting of: a coalescing element for coalescing and separating from the oil-state liquid the moisture including the hydrophilic contaminants such as sodium by being penetrated the fiber layer having the characteristics of alkali resistance and solvent resistance, typified by a carbon fiber; a liquid feeding means for feeding and supplying a mixed liquid of the moisture including the hydrophilic contaminants and the oil-state liquid; a water collecting means for collecting the moisture including the hydrophilic contaminants which is coalesced and separated; and a oil colle

Abstract: Waste washout liquid containing liquid washable photopolymer from a printing plate manufacturing process is subjected to filtration via a centrifugal filter unit. The unit has a collector for the solid material arranged for rotation and disposed so as to allow deposition upon it of solid material during its rotation. The unit is fitted with at least one of a pretreatment unit for coagulating the solid material and a collector removable from the filter unit so as to allow its disposal together with the solid material deposited on it. Usually, the pretreatment unit is a preheater and the collector is a disposable liner within a rotatable chamber.

Abstract: Filtration apparatus for the purification of various oil products such as combustion oil, lubricating oil, hydraulic oil, or transformer oil is disclosed, including a housing, a rigid, hollow core mounted longitudinally within the housing, and filter paper wound around the hollow core so that the oil flows axially through the filter paper in the housing from a high pressure end to the lower pressure end, and in which passages extend between the interior of the hollow core and the filter paper and a valve is provided for establishing fluid communication between the interior of the hollow core and the low pressure end of the filter.

Abstract: A filtration membrane module submerged with processed liquid in the processing tank. Plural plate-like, rigid membrane cartridges are vertically placed in parallel to each other as properly spaced from the adjoining membrane cartridges. The cleaning stream generating means for supplying a flow parallel to the membrane surfaces of the membrane cartridges opposes the gaps between the membrane cartridges opposite to each other. The sucking means for sucking the permeated liquid in each membrane cartridge is communicated with each passage of permeated liquid in each membrane cartridge. The membrane supporting plate for retaining the filtration membrane of the membrane cartridge is made hollow using a rigid structure member.

Abstract: A filter for removing hazardous particulate matter from an aqueous flow. The filter includes a rigid support housing having an input port for the aqueous flow, an exit port for the aqueous flow, a brace to securingly engage a filter vessel for the aqueous flow, an internal seal and an external seal, and a disposable filter cartridge configured similarly to the housing and sized to be substantially entirely received within the housing and sealingly engage the internal seal and having a filter medium that extends across a path from the input port to the exit port when received in the housing, the cartridge having a terminal seal located to sealingly engage the cartridge to the aqueous flow filter vessel outside of the housing when the cartridge sealing engages with the internal seal.

Abstract: A liquid filter apparatus particularly useful in removing particulates from parts washing solvent. A filter assembly includes an exterior, fluid-impermeable container, preferably in the form of a flexible sidewall bag, and an interior filter element with permeable sidewalls and inlet and outlet ends, preferably in the form of a sleeve. In use, liquid entering the sleeve may pass unfiltered entirely through the sleeve and exit through a sidewall of the exterior container, or all or any part of such liquid may pass through the filter sleeve and into a portion of the apparatus outside the sleeve but inside the exterior container. From this portion, the liquid emerges in a filtered condition. Consequently, the filter continually operates in both filtration and bypass modes.

Abstract: A filter (32) is provided for a medical sterilization container (10) having a port (18,22,24) allowing fluid communication between the interior of container (10) and the surrounding environment. A peripheral frame (44) is adapted to cooperate with the port (18,22,24). A plurality of cross-members (54) span an aperture (48) formed by a frame (44). A filter medium (58) is disposed across the aperture (48) so as to be interposed between the interior of the container and the cross-members (54).

Abstract: A porous filter medium is formed by a pleated cylinder of a depth filter medium. An absolute rated inner filtration layer is arranged between upstream and downstream drainage layers. The depth filter medium is formed from a continuous sleeve. Additionally or alternatively at least the downstream drainage layer may be formed integrally with at least a part of an inner filtration layer. The material of the medium may be a fibrous mass of non-woven synthetic polymeric micro-fibres which are free of fibre-to-fibre bonding and are secured to each other by mechanical entanglement or intertwining, with the diameter of the fibrous structure varying across the medium.

Abstract: Oil and oil products are adsorbed with a three-dimensional lattice structure formed by coating individual glass fibers, assembling them and drying them at a temperature of about 150.degree. C. so that the structure will have; sufficient capillarity to pick up substantial amounts of oil and yet the mat will have sufficient structural stability to be stable. The coating is formed by a mixture of hydrophobizing silicone oil and starch (94 to 96% by weight starch to 6 to 4% by weight silicone). The latticework of the fibers and baked silicone oil/starch mixture can be used to pick up oil on a surface and recover oil from the latticework before the latticework is ultimately destroyed in a garbage incinerator.

Abstract: A pillow for placement in enclosed areas utilized to collect and contain spilled or leaked hydrocarbons such as boat bilges and sumps absorbs pollutants that come in contact. The absorbed material is solidified within the pillow into a rubber-like mass. The consolidated mass will float indefinitely and is easily retrieved and handled for disposal. The pillow will not leech solidified hydrocarbons when exposed to pressure limits used to determine landfill suitability.

Abstract: A filter unit comprises a plastics frame into which a sheet of filter medium is insert moulded. Portions of the frame form apertures and other portions allow fluid access to and from the opposed surfaces of the filter medium when the frame is covered by a flat surface. The frames also form portions of an integral capsule enclosing the medium. A number of such filter units can be stacked together in various configurations so that the apertures form inlets and outlets for fluid so that, in some configurations, fluid can be passed through the filter units in parallel while, in other configurations, fluid can be passed through filter units in succession. Filters of any convenient size can be produced by increasing the number of filter units in a stack. The filters are bi-directional. The frames can be of polypropylene connected to hydrophilic microporous nylon membrane by injection moulding, which has been found to give a filter unit that can be integrity tested.

Abstract: An open celled plastic foam treated with a polymer which is adsorbed in the surface of the foam and causes the polymer adsorbed foam to become an oil wick and to be impervious to water. The polymer adsorbed foam when the cells of the foam are saturated with oil exhibiting a density heavier than oil and lighter than water.

Abstract: A filter support tube for use in a filter cartridge including a helical wound wire defining a cylinder and a plurality of reinforcing strips extending generally parallel to a longitudinal axis of the helical wire cylinder and circumferentially spaced from one another about a perimeter of the cylinder. The multiple turns of the helical wire are embedded in the reinforcing strips and extend through it. The wire is coated with a bonding agent to permit the wire to bond to the reinforcing strips and to provide corrosion resistance. The reinforcing strips embedding the wire lock the wire in the desired helical configuration and provide the required column strength for the filter support tube.

Abstract: The present invention comprises a two-part sorbent pad having a flat, chemically treated polyethylene foam inner core completely surrounded by a flexible, durable, chemically treated polypropylene fabric cover. In use, the sorbent pad of the present invention floats on top of petroleum covered water to rapidly soak up the petroleum or oil and hold it within the inner core until it can be removed by squeezing the sorbent pad between rollers, thereby depositing the oil into a container for storage. The non-petroleum laden sorbent pad is then returned to the surface of the petroleum covered water to pick-up more petroleum. The sorbent pad is chemically treated to increase the pads ability to attract and hold oil by both adsorption and absorption and to further increase its ability to repel water.

Abstract: A portable curb inlet sediment filter which has a box filter frame and a primary baffle panel defining a filter chamber, to be filled with a particulate filter medium, such as gravel, for sediment removal, and an overflow chamber. The overflow chamber has at least one overflow baffle panel in order to provide a hydraulic opening and a peripheral end cap chamber. The end cap chamber is gravel filled in order to clarify water escaping around the front of the frame and into the hydraulic opening through the side panel. The filter frame and baffle panels are a mesh construction having apertures smaller in size than the particles of gravel to be contained.

Abstract: A screen element or screen basket for sorting and classifying a fluid flow, in particular for treatment of fiber suspensions or for mechanical purification of molasses, includes a screen insert having a support screen for taking up forces or loads during operation and a plurality of screen inserts which are provided with classifying openings. The screen inserts are detachably secured to the support screen allowing individual replacement during wear or damage.

Abstract: A sanitizing, cleaning and deodorizing unit for evacuation system filter traps of the type used in dental evacuation suction systems comprises a housing bounded by a side wall having openings that provide fluid communication with the ambient atmosphere and a body of sanitizing, cleaning and deodorizing material situated in the interior space of the housing. The material-containing housing is situated in a conventional filter trap comprising a cup-shaped unit comprising a mesh screen bottom wall. As waste material is suctioned into the filter trap, it passes through openings in the side wall of the unit housing into contact with the body of sanitizing, cleaning and deodorizing material which releases upon contact.

Abstract: A filter cartridge is provided with an end cap and a lock ring which capture a filter element therebetween on assembly and which include projections extending beyond the outer surfaces of the end cap and the lock ring. The application of heat to the projections causes the material of the projections to fuse together and provide a leak-proof seal between the end cap, the lock ring and the filter material.

Abstract: A pillow for placement in enclosed areas utilized to collect and contain spilled or leaked hydrocarbons such as boat bilges and sumps absorbs pollutants that come in contact. The absorbed material is solidified within the pillow into a rubber-like mass. The consolidated mass will float indefinitely and is easily retrieved and handled for disposal. The pillow will not leech solidified hydrocarbons when exposed to pressure limits used to determine landfill suitability.

Abstract: A regenerable deep bed filter element and method for making it, the element being provided as a closed system, in the case of which a deep bed filter (21), disposed inside at least one hollow-cylindrical chamber (17), is formed by a bulk material filling of regenerable, filtration-active substances of a particulate and/or fibrous structure. The hollow-cylindrical chamber accommodates radial flow by means of porous inner and outer peripheral walls (18, 19). The deep bed filter can be either washed, or regenerated by flushing back with water, steam or chemical cleansing agents, during which the filtration-active substances remain inside the chamber (17).

Abstract: A container capable of dewatering wet mixtures and for transportation which comprises (1) an external cylindrical container with openings therein having a hanging member in an upper portion thereof, wherein the hanging member can shut the upper portion of the external cylindrical container, and wherein the external cylindrical container has an easy to open and shut closure at a bottom portion and (2) an internal porous container for dewatering a wet mixture is described. This container permits dewatering, packing, storing and transporting operations to be easily achieved.

Abstract: A porous filter medium is formed by a pleated cylinder of a depth filter medium. An absolute rated inner filtration layer is arranged between upstream and downstream drainage layers. The depth filter medium is formed from a continuous sleeve. Additionally or alternatively at least the downstream drainage layer may be formed integrally with at least a part of an inner filtration layer. The material of the medium may be a fibrous mass of non-woven synthetic polymeric micro-fibers which are free of fiber-to-fiber bonding and are secured to each other by mechanical entanglement or intertwining, with the diameter of the fibrous structure varying across the medium.

Abstract: A method is provided of removing hydrocarbon pollutants from a surface of a body of water in a storm water filtration system containing an oil separation chamber including a removable top cover to provide access to the chamber for removing oil, a side wall with a storm water inlet, another side wall with a filtered storm water outlet in a region of the chamber lower than the inlet and an overflow storm water outlet located above the filtered storm water outlet. A porous container having an interior filled with oleophilic and substantially buoyant material is located upon the surface of the water in the oil separation chamber so that oil floating on the surface of the storm water in the chamber is adsorbed by the oleophilic and substantially buoyant material.

Abstract: This invention relates to a reusable filter unit for an internal combustion engine wherein the filter fulfills both a filtering function and an additive function, the filter including a filtering part with replaceable filtering media and an additive part adapted to receive replaceable chemical additives. The filter part includes a generally toroidal shaped plastic element for receiving a generally cone shaped replaceable filter media, which can be agglomerated fiber, the element fitting into, and permanently bonded to, an outer shell, with the additive part being located below the element.

Abstract: A compactable or incinerateable non-resilient, coreless, cylindrical filter element including an annular pleated filter media having rigid end caps which are sealingly bonded to the pleated filter media with the exterior of the filter element surrounded by, but not part of the filter element, a non-bypassing support cage comprising of perforated sheet formed into a cylinder and having an end cap at each end with the top flanged end of the support cage and the top end cap of the cylindrical filter element sealed between a support housing by sealing rings to thereby prevent leakage of fluid past the end of the filter media.

Abstract: A repair method for filter elements such as those used to filter polyester during the later stages of polyester manufacture in which the filter media is a particulate solid media arranged in a desired shape and maintained in that shape by a surrounding porous container that has filtration openings of a desired size. The method fills undesirably large openings in the surrounding porous container that result from damage to the container and through which enlarged openings the particulate solid media would otherwise escape with a polymeric resin. The polymeric resin is a resin with a glass transition temperature when cured that is at least greater than the melting point of polyester, and that has an absence of any chemical functional groups at temperatures at least as great as the melting point of polyester that would substantially react with polyester, the glycol precursors of polyester, the acid precursors of polyester, or the solvents useful in cleaning polyester from such filter elements.

Abstract: A filter (32) is provided for a medical sterilization container (10) having a port (18,22,24) allowing fluid communication between the interior of container (10) and the surrounding environment. A peripheral frame (44) is adapted to cooperate with the port (18,22,24). A plurality of cross-members (54) span an aperture (48) formed by a frame (44). A filter medium (58) is disposed across the aperture (48) so as to be interposed between the interior of the container and the cross-members (54).

Abstract: A device for producing mineral-containing water comprises a case communicated with a water outlet of a water storage vessel with or without the use of a plug, the case being provided with a plurality of small diameter water passages. Small masses of ceramics serving as mineral-water production material are accommodated in the case. The device permits only a required quantity of supply water to be rendered to mineral-containing water for drinking or cooking, by contacting the water with the small masses of ceramics. Mineral-containing water is produced when pouring supply water from the faucet into the water storage vessel, for instance, a canteen, a kettle, a pot, a bottle, etc., and this requires no substantial change in the appearance of the vessel or in the operation of pouring water.

Abstract: A filter drier (10) for an air conditioning or refrigeration system, has a body (12) with an interior area (20). The unit has an inlet opening (24) and an outlet opening (30). The outlet opening is in connection with an outlet tube (34) that extends substantially the length of the interior of the body. Donut shaped housings (54, 56) holding particles of desiccant material, are sandwiched between a first baffle (36) and a second baffle (72). The housings have an upper filter pad (58) of rigid, coarse fiber material, and a filter bag (62) of fine, flexible fiber material. In each housing, the filter bag is attached to the filter pad about its outer periphery at a seam (66), and at a seam (68) which is adjacent an opening (60) in the pad, through which the outlet tube extends. The filter bags of the donut shaped housings are deformed upon assembly to insure contact with the inner wall of the housing and the exterior surface of the outlet tube.

Abstract: A bag filter comprising at least one sheet of a polyester filter medium, preferably a polyester high dirt capacity filter medium, having a graded pore structure which has been formed into a bag configuration with an opening, an inside surface, an outside surface, and at least one seam formed at adjoining filter medium portions which have been sewn together and optionally sealed with a thermoplastic tape that has been heat-sealed to the adjoining filter medium portions.

Abstract: The device is made from a textile article (1), made up of at least one layer of non-woven material capable of filtering, the said article is designed to make up a pocket or sleeve, open at one end and closed at the other, this article being mounted inside an open support (2) communicating with the liquid and connected to a liquid suction and delivery system in order for the article (1) to filter the liquid.