Abstract: A cylinder having both ends opened is structured of loosely woven metal or plastic wire. The cylinder is sized to fit vertically in a coffee maker filter basket inside a disposable coffee filter as a filter support. The filter support prevents the walls of the disposable filter from collapsing over the coffee grounds thus reducing chances of coffee grounds being released into the coffee pot. The rounded cylinder comprising this filter support is sized to fit and function in all shapes of coffee maker filter baskets and in other coffee making filter funnels, round, square, and frusto-conical. The filter support of the immediate invention is reuseable.

Abstract: A pre-filled fuel filter assembly for internal combustion engines includes a filter cartridge containing a requisite quantity of fuel necessary for filter installation and a removable cap sealably enclosing the cartridge, to enable the filter cartridge to be simply and readily installed as a replacement fuel filter in the event of an engine breakdown without requiring transportation of the engine to an available source of fuel supply.

Abstract: A mesh filter bag fits over a metal support. The bag has opposed edges longitudinally extending along one side of the mesh filtering bag from the bottom of the bag to the top of the bag. A rope extends from the filtering bag bottom along one opposed edge over the top and along the other opposed edge to the bottom. The opposed edges are held in sealing engagement by a tube.

Abstract: A filter cartridge having an improved end cap and tube support design is taught. Briefly stated, an outer cage has circumferentially disposed thereround a plurality of truncated triangular shaped saw tooth-like projections each of which as a rounded nub or projection at the outermost truncated end. An inner cage similarly has a plurality of alternating projections coextensive therewith, with the thickness of the furthermost portion of the projection being tapered towards the bottom where the projection meets the end of the inner cage. The inner cage is disposed within the outer cage and placed between end caps having circumferential regions adapted to receive the projections disposed at the end of the outer and inner cage respectively. A filtration medium is disposed between the inner and outer cage.

Abstract: A filter bag is positioned inside and fastened to a holding frame. The holding frame has substantially vertical walls and is adapted to be placed on the edge of a coffee cup or the like. The sides of the holding frame that face the filter bag are made of hydrophobic material. The filter bag is made of nonwoven hydrophilic filter material.

Abstract: Disposable filter element, adapted for use in a high-pressure filter housing, has a plurality of layers of flexible filtering material, some layers being formed with openings through which a portion of the fluid can flow without being filtered, and at least one downstream layer of the filtering material being free from such openings. When all of the layers of filtering material have the same pore size, the total area of the openings in each layer is larger than that of the openings of any downstream layer. Each opening-containing layer of the filtering material removes part of the contaminant in the fluid. Interposed between adjacent opening-containing filtering layers is a layer of flexible transport material, and there is a layer of flexible prefiltering material positioned upstream of said filtering layers.

Abstract: A tubular filter element for liquid filters comprises a perforated support pipe. Disposed around the inside of the support pipe is a tubular filter layer which comprises a folded sheet of filter material. Within each end of the filter element a spring washer is disposed for biasing the end of the tubular filter layer outwardly against the inside of the support pipe. In this pre-biased state, the ends of the filter element are joined to disks by means of a hardenable casting material.

Abstract: A pressure filter assembly having a bleed valve assembly for releasing trapped gas from with the filter chamber in a controlled manner. The bleed valve assembly includes a stem secured to the filter assembly having a bore therethrough for communication with the filter chamber and a cap for controlling the release of trapped gas within the filter chamber. The cap has a plunger with a contact surface which mates with a portion of the inside surface of the stem bore and an extension which fits with a narrow portion of the bore.

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: Spin on disposable filters are useful in removing contaminates from the fluid of fluid systems. Preventing axial elongation of the filter due to fluid pressure therein requires the use of thicker elements, thereby increasing the manufacturing cost. The subject twist on disposable filter includes a twist-lock connector device which captures a portion of a housing between cooperating members of the twist-lock connector device. The area of imbalance caused by seal placement is greatly reduced by the twist-lock connector device, thereby minimizing the forces tending to cause axial elongation of the filter. This permits the use of less expensive materials therein and simplifies the manufacturing procedure.

Abstract: A filter leaf cleaning system for use in a suction-type filter apparatus having a tank to receive polluted liquids to be filtered or clarified includes a cleaning system header connected to a filtrate discharge conduit for diverting a portion of filtrate flow into the cleaning system, valve means connected to the cleaning system header for controlling filtrate flow into the cleaning system, a dispersing conduit connected to the cleaning system header adjacent a particulate-filtering surface of each filter leaf and having an opening for directing the filtrate flow across the particulate-filtering surface to flush particulates from the surface toward a solids collecting section of the tank housing the filter leaf. In addition, or in the alternative, the cleaning system may employ a membrane wiping member for sweeping movement across the particulate-filtering surface to brush residue or particulates from the surface.

Abstract: A filter device adapted to separate immiscible liquids in beverages such as coffee or tea and other consumable material such as soups and gravies is so designed whereby the beverage or other consumable material passes through a special prewetted filter cloth member and the oils or other immiscible organic liquids contained in the consumable material are coalesced and retained upon the surface of the filter cloth member. The special filter cloth member is formed of synthetic fibers having a low moisture regain, provided with a multiplicity of fine interstitial openings and is napped on the upper surface.

Abstract: In a plate type membrane module in which a number of units, each comprising a membrane supporting plate with corrugated surfaces, and membranes formed on the corrugated surfaces, with permeate passageways between the membrane and the corrugated surfaces, are laminated in such a manner that passageways for a solution to be filtered are formed between the units. The waveforms of the confronted corrugated surfaces of adjacent membrane supporting plates are in same phase with each other. Thereby the pulsation of the solution and accordingly the vibration of the membranes can be effectively prevented, with the result that the membranes are prevented from early fatigue.

Abstract: A filtering system for water treatment including a head member having inlet and outlet ports and a replaceable, disposable filter cartridge for insertion into the head member, the filter cartridge including a dual lug retaining system for retaining the filter cartridge in the head member, one of said lug retaining systems being disposed on the pressure vessel of the filter cartridge and the other of said lug retaining systems being disposed on the closure member of the filter cartridge.

Abstract: A liquid filter includes a housing having a pressure chamber portion in which a filtering media is carried and a support engaging portion which attaches the housing to the engine upon which the filter is mounted. The support engaging portion includes a radially projecting section which mounts the usual gasket which effects a seal between the housing and a sealing surface on the engine. The radially projecting portion cooperates with the portion of the housing containing the filter to define a circumferentially extending groove therebetween, which isolates the gasket from the distorting forces generated in the housing by hydraulic pressure.

Abstract: An improved spin-on, throw-away type fluid filter assembly which is capable of withstanding operational pressures in excess of 1000 psi adapted to by threadably affixed to a filter mounting means. The improved filter assembly includes a housing having a closed end and an open end which receives a base plate. The open end of the housing is folded inwardly over the base plate. A cap having a downwardly extending skirt is then press-fitted over the open end of the housing and extends substantially coexistent with the base plate and is then roll-formed so that the periphery of the skirt engages the exterior of the housing at the lower surface of the base plate to add strength to the structure.

Abstract: An oil separator for removing oil from a flowing waste stream of waste fluid includes: a separator body having a flow bore with a center, an open bottom and an open top each communicating with the flow bore so that fluid can flow in the flow bore between the open bottom and the open top; and a plurality of vanes, each defining a spiral path for fluid flowing in the bore between the open bottom to the open top, the vanes being spaced radially from the center of the bore and each vane having upper and lower end portions.

Abstract: A paint strainer of conical configuration provided with peripherally-spaced discharge openings in the side wall above the tip, a secondary opening located between the peripherally-spaced openings, and a discharge opening at the tip located in the side wall between the secondary openings and the tip. The openings are covered with mesh.

Abstract: A fish tank filter comprising an overflow tank for collecting surface waters from a fish tank, means for conveying the waters to a dry filter, a dry filter comprising a plurality of vertically stacked filter pans each having a filter material therein, a means for collecting the effluent from the dry filter and conveying it to a wet filter, a wet filter comprising a plurality of serially arranged filter material-containing filter compartments in a tank, and means for returning purified water to the fish tank.

Abstract: A filter apparatus is provided comprising a number of cylindrical candle filters, each of which contains a displacement body forming a space of uniform width between itself and the candle filter. The filter material of the candle filter is supported by a cylindrical supporting body which has passages through which a plastic melt to be filtered can flow. A number of filter apparatuses can be arranged on concentric circles on a cylindrical filter housing so as to minimize the dwelling time of the plastic melt flow through the filters and to minimize the pressure loss over the length of the filters.