Abstract: A drip bag including a bag body having an upper end to be opened and two opposing surfaces, and a pair of hook members provided on outer faces of the opposing surfaces and spaced apart from vertical side edges of the bag body. Each of the hook members including an upper stuck part adhered along an opening of the bag body, a center part located below the upper stuck part, and a hook part not adhered to the bag body. For each of the hook members, a pair of oblique folding lines are formed on the upper stuck part, and a vertical folding line is formed downwardly from a lower end of each oblique folding line, whereby, in use, at least the oblique folding lines and the vertical folding lines cause the outer faces of the bag body to protrude outward from a bottom end of the bag body.

Abstract: A cartridge for forming a beverage includes a container defining an interior space, a filter, a beverage medium contained in the interior space, and a filter guard. The filter may be arranged so that liquid that interacts with the beverage medium flows through the filter to exit the interior space. The container may include a surface arranged to be pierced by a piercing member to permit beverage to exit the container. The filter guard may be arranged to contact the piercing member to resist damage to the filter when the container surface is pierced. In one embodiment, the filter guard and filter may be in contact with the container surface that is pierced, yet damage to the filter that might be caused by the piercing element may be avoided.

Abstract: The present invention is a method and material for using a sorbent material to capture and stabilize mercury. The method for using sorbent material to capture and stabilize mercury contains the following steps. First, the sorbent material is provided. The sorbent material, in one embodiment, is nano-particles. In a preferred embodiment, the nano-particles are unstabilized nano-Se. Next, the sorbent material is exposed to mercury in an environment. As a result, the sorbent material captures and stabilizes mercury from the environment. In the preferred embodiment, the environment is an indoor space in which a fluorescent has broken.

Abstract: A drip bag having a bag body and a holder which is formed from a sheet material and is adhered to the bag body. The holder is folded into two parts, a front surface and a rear surface, on a center fold line, and the center fold line overlaps a lateral side of the bag body. V-shaped fold lines bent in V-shapes and extending from the open edge of the drip bag toward the bottom direction thereof are formed in regions on the side of the center fold line of the front surface and the rear surface of the holder. In addition, overhanging parts, which have concave portions for hooking, are formed in a manner that allows them to be pulled open on both the left and right sides of the lower end of each of the front surface and the rear surface of the holder.

Abstract: The new design has three primary features: (1) a rectangular collar having a centrally located circular cutout with sewn loops formed on the outer edges of the collar; (2) a filter bag having top edges attached to the rectangular collar along the periphery of the circular cutout so that the bag is inserted within the cutout and drops below the level of the collar; and (3) a heavy gauge steel wire inserted within the sewn loops of the rectangular collar forming a structural frame along the periphery of the rectangular collar. The structural frame is preferably formed with overlapping portions coupled together with a retaining means. The overlapping portions are slidably moved relative to one another to change the first and/or second dimension of the frame so that the filter can fit within catch basins openings of various measurements.

Abstract: Spent pyrophoric reaction catalyst from a reaction mixture is removed safely, cheaply, and rapidly using a single plate pressure filter. After hydrogenation, the reaction mixture is decanted, the desired hydrogenation product is removed, and catalyst-rich material which settles at the bottom of the vessel is delivered to a single plate pressure filter fitted with a filter bag 40 of permeable material. The spent catalyst is retained in the filter bag 40 and stored under water awaiting recovery. The filter apparatus 1 comprises a container having a domed base 2, a generally cylindrical sidewall 3 terminating in an upper rim 4 closed by a lid 5 having lifting lugs 6. The lid 5 is fixed in pressure-tight engagement with the sidewall 3 by flange engaging screw clamps 7 and an embedded polytetrafluoroethene gasket 8. The filter bag 40 is held in position by a band 11 and may be readily released for removal of the spent catalyst material. The bag 40 may be reused.

Abstract: A filtering unit including an upper container for receiving fluid to be filtered, a lower container for receiving the fluid from the upper container and an intermediate filter cassette. The filter cassette includes a support member connected with a flat filter member, such as a membrane filter, and can be removed with respect to each of the upper and lower containers. The filter cassette may be inserted within the upper container with sealing engagement between the support member and the internal wall of the upper container. The various disclosed embodiments include the ability to serially connect multiple filter cassettes generally between the liquid contained in the upper container and the lower container.

Abstract: A filtering unit including an upper container for receiving fluid to be filtered, a lower container for receiving the fluid from the upper container and an intermediate filter cassette. The filter cassette includes a support member connected with a flat filter member, such as a membrane filter, and can be removed with respect to each of the upper and lower containers. The filter cassette may be inserted within the upper container with sealing engagement between the support member and the internal wall of the upper container. The various disclosed embodiments include the ability to serially connect multiple filter cassettes generally between the liquid contained in the upper container and the lower container.

Abstract: A filtering unit including an upper container for receiving fluid to be filtered, a lower container for receiving the fluid from the upper container and an intermediate filter cassette. The filter cassette includes a support member connected with a flat filter member, such as a membrane filter, and can be removed with respect to each of the upper and lower containers. The filter cassette may be inserted within the upper container with sealing engagement between the support member and the internal wall of the upper container. The various disclosed embodiments include the ability to serially connect multiple filter cassettes generally between the liquid contained in the upper container and the lower container.

Abstract: A strainer device for assisting in draining packing liquid from opened tuna fish cans, as well as from opened cans of produce such as vegetables, fruit, and beans, the device including a molded plastic short hollow cylinder open at the top end and closed at the bottom end with a perforated bottom wall, the strainer body sized to be slidably fit into an opened tuna fish can. A pair of flange ears at the top enable the bottom each to be pushed into the tuna to force the liquid out through the bottom wall perforations as well as a series of slots around the perimeter. The bottom wall bulges down to be convexly shaped, aiding in moving the liquid out through the slots and also allows an inverted open can of produce to drain through the perforations as the strainer is resting on a supporting surface.

Abstract: The present invention relates to filters for coffee, tea, hot chocolate etc., in which a filter is placed in a cylindrical container and whatever is to be filtered is placed in the filter that has been placed in the cylindrical container. Thereafter, either hot or ice cold water, in the case of iced tea, is poured into the cylindrical container over that which is to be filtered. In more cases than not, the filter collapses, especially in the case of coffee and tea, the result is that coffee grinds and tea leaves eventually get into the coffee cup or tea leaves get into the tea cup. The present invention solves this problem by providing a retention ring of shape retaining inert material, such as plastic or stainless steel that is capable of being compressed in size placing it inside the filter that has been placed in the cylindrical container that is to be filled with a product.

Abstract: An adjustable filter assembly for a variety of filtration applications. The adjustable filter assembly includes a fixed-size filter medium and frame and an adjustable molding for adjustably applying said filter assembly in applications having widely varying dimensions. The filter assembly can take a variety of shapes and sizes so that any vent may be adequately fitted and filtered. The adjustability of the assembly is accomplished by the molding having at least one adjustable joint enabling the molding to be continuously adjusted from an unextended position through to a fully extended position. In the unextended position, the outside edge of the molding coincides with the perimeter of the filter media and the inner edge of the molding defines a minimum exposed area for the filter medium. In the fully extended position, the inner edge of the molding coincides with the perimeter of the filter media and the outside edge of the molding extends outwardly significantly beyond the perimeter of the filter media.

Abstract: A low-cost portable water treatment device having a low-cost replaceable filter. The device includes a housing having an inlet, an outlet and a water filtration chamber. The replaceable filter is disposed in the water filtration chamber and comprises a disk having a compressible peripheral portion. The device includes a mechanism for compressing the peripheral portion to seal the filter and a mechanism for forcing contaminated water through the filter and out the outlet. The device also includes a storage compartment for a spare filter. Methods for manufacturing the low-cost filter and for sealing the filter in the device are disclosed.

Abstract: A reusable multilayer filter for use with a beverage brewing apparatus. The multilayer filter includes a foraminous support player, a porous mesh layer and a multiplicity of wrinkles formed in the porous mesh layer. The foraminous support layer has a multiplicity of spaced apart holes extending through the layer. The porous mesh layer overlies and is attached to the foraminous support layer. The mesh layer is formed of a woven, etched, or deposited material which has a multiplicity of small openings extending therethrough. The openings in the porous mesh layer are smaller than the holes in the foraminous support layer for selectively retaining material having a dimension larger than the openings. The wrinkles in the porous mesh layer are formed in spaced apart areas which are defined by a perimeter of the holes in the foraminous support layer. The wrinkles increase the effective surface area of the filter.

Abstract: A support assembly for coffee filters comprises an annular or ring-like member adapted to nest inside the coffee filter basket of an automatic "drip" style coffee machine with the ring member being adapted to fit concentrically inside the circumference of the replaceable filter element in a manner to maintain the filter in engagement against the inside wall of the basket during the coffee brewing cycle. A portion of the ring member is tubular and flexible whereas another portion of the ring comprises a rod having its opposite ends received inside corresponding opposite ends of the tubular portion so that the rod portion may be telescopically displaced relative to the tubular portion. Resilient biasing means in the interior of the tubular portion tends to resist such relative telescopic displacement and urges the ring member to assume its normal diameter.

Abstract: A filter plate (1) is described on which a filter cloth (4) is disposed across the whole top side and glued or welded to the outer sides, and which is used for filtering off particles from a liquid. The plate has a large number of apertures (2), each individual aperture area being at most 2.25 cm.sup.2. The total free open area of the plate is 70-90% of the total plate area and the thickness of the plate is at least 5 mm.

Abstract: A filter for making filtered drinks, such as coffee, includes a filter bag and supporting members connected to the filter bag for supporting the filter on the rim of a vessel, such as a cup. The supporting members are adapted to be moved from a flat folded configuration to a position in which the supporting members are substantially horizontally oriented for being positioned on the rim of the cup.

Abstract: The invention relates to A filter for making portions of coffee or tea, comprising a substantially cup-shaped supporting vessel having a pouring-in opening at the top, a chamber for filling with liquid and having an outlet opening at the bottom, and a filter insert disposed in the supporting vessel above the outlet opening, wherein the filter insert (5) comprises a filter mat and extends approximately parallel to the inner wall of the supporting vessel and its periphery is connected to the supporting vessel (1) in the edge region of the pouring-in opening (2).

Abstract: The present invention relates to a reusable or permanent filter assembly useful in positioning and retaining the ground roast of coffee or tea in a hot water beverage maker. The plastic filter assembly consists of a separable outer container and an inner/perforated filtering element. The filtering element contains a plurality of equidistant holes or perforations that permits the rapid drip of a preferred beverage from the filter assembly.

Abstract: Described is a water purifier comprising a collecting container (1) with pouring spout (2) and handle (3), a funnel and a cover (5) which can close the funnel, wherein provided at the bottom of the funnel is an opening for receiving a filter cartridge containing a purifying agent.

Abstract: A paper extractor including a support member in the form of a collar of a small wall-thickness having at its lower end two support legs facing each other, a filter attached to an inner surface of the support member, and coffee packs each including coffee powder sealed in a bag of filter cloth or filter paper. The support legs of the support member are each formed with folds in the form of a letter V to allow the support legs to be deformed and project outwardly when they are bent at the folds. By replacing the coffee pack by a new one, the paper extractor can be used several times before it is discarded, and the deformable support legs enable the paper extractor to be stably supported on the upper edge of a coffee cup.

Abstract: An improved combination of an open-ended casing section and a removable closure inset therein is disclosed. The casing section is of composite structure and comprises an annular bulge of bowed fiber sections which, together with underlying annular resin bodies, defines a groove in the inner surface of the casing section. The latter section is improved by incorporation of circumferentially wound fibers in the latter resin bodies and by a hoop of resin-coated fibers wound around the casing section between the apex of the bulge and the casing end. The closure assembly is improved by use of a head having an annular concavity in which is seated a retaining ring adapted to fit into the groove in the inner surface of the casing section when the head is urged toward the casing end.

Abstract: A liquid filter vessel used for the filtering of liquid in a permanent installation provides for a simplified method of replacing the filter bag and includes a removable cover which displaces a relatively large volume of liquid. Removal of the cover from the filter housing, reduces the liquid level within the housing to a level below the lip of the filter bag, making it easy to grab the lip thereof, and remove the bag without coming into contact with the liquid being filtered.