Abstract: A filter system especially useful in the treatment of waste material, in particular liquid waste material which may include particulate matter therein. The filter system includes a series of filters of progressively finer porosity in order to selectively eliminate particulate (or semi-particulate) matters from a carrier material, typically but not exclusively, of a fluid or liquid nature. The filters are mounted within a housing which includes an outlet port and a plurality of inlet ports, wherein each inlet port includes a check valve.

Abstract: The present invention comprises a process for filtering a slurry and a filter cartridge construction for filtering a slurry having a filtration medium formed of a depth filter such as a cylindrical seamless fibrous depth filter comprising a nonwoven fibrous mass, woven fibers, a plurality of nonwoven fibrous layers or a fibrous felt or the like or a wound depth filter retained within a housing substantially free of an open void volume upstream of the depth filter which causes separation of solid particles from a slurry being filtered The filtration medium is divided into a plurality of depth filter segments by spacers which are spaced apart from each other along the length of a filter cartridge housing which houses the depth filter, The spacers serve to divide the depth filter medium into depth filter segments and to allow fluid to pass there through along a defined path defined by the configuration of the open portions of the spacers.

Abstract: The bioreactor system of the present invention has two fluid-filled culture compartments in which cells, tissues and other biologicals are cultured. The two culture compartments are in fluid communication with each other and each culture compartment is transversed by a filter that prevents the exit of the cells from the culture compartment. Both reusable and disposable culture chambers are described for use as the first and/or second culture compartment.

Abstract: A sieve separator and a method of slurry separation that uses two or more levels of filtration screens. In some embodiments, the filtration screens on different levels may be used to separate solids of various sizes at each level.

Abstract: The present invention involves a filter element assembly (10), which is useful in removing undissolved adhesive bodies from oil. The assembly includes at least one cylindrical body 11 of principal filter medium for removing particulates from oil. Body 11 has an inlet end and an outlet end. A secondary filter medium 20 for removing undissolved adhesive bodies from the oil is located around the sides and across the inlet end of the principle medium (11). A flow affording spacer 926) is disposed between the sides and the inlet end of the principal medium (11). A preferred spacer (26) is a non-woven expandible mesh present in a partially expanded state and having elements (27,28) grouped in first and second sets in which the elements (27) in the first set are laid atop the elements (28) in the second set. A readily cleanable containment vessel (39) for the filter element assembly (10) includes a tubular body (41) which is releasably connectible in liquid tight relation to a bottom cover (44) for the body (41).

Abstract: A rain head is disclosed having three filters through which water entering an inlet to the rain head must pass before passing out through an outlet from the rain head. The filters remove successively smaller particles from the water.

Abstract: An automatic water filtration and purification system will allow a continuous water flow to downstream fixtures while simultaneously and automatically regularly flushing and cleaning in-path filter media. The automatic water filtration and purification system has at least one filter to remove impurities from a water in-path through-put. A cleaner is coupled to the at least one filter to clean the at least one filter. A controller is coupled to the at least one filter to regulate automatic operation of the cleaner wherein continuous operation of water flow to fixtures downstream of the at least one filter is essentially uninterrupted during the operation of the cleaner and the controller.

Abstract: Filters, more particularly to multifunctional filters that are capable of removing as well as adding components to a filtered material are provided by the present invention. In addition to a multifunctional filter, the present invention relates to the use of such a multifunctional filter in an apparatus, to process a filtrate and to the filtrate produced by the process of the present invention.

Abstract: A method for filtering liquids, especially drinks, is by a filtering device having at least two filter lines. Each filter line has at least one filter unit with at least one preliminary filter and one terminal filter which can be connected to or disconnected from the respective filter line independently of each other and which can also be independently regenerated. The pressure differential of at least one filter unit on each filter line is measured. Once a predefinable threshold value is reached for the pressure differential, the volume flow entering the device is reduced. The associated filter unit is disconnected from the filter line. The reduced volume flow to be filtered is handled by the corresponding filter unit in the other filter line which is fluidically connected to the filter line between the respective preliminary filter and the respective terminal filter. The disconnected filter unit is regenerated.

Abstract: A hydraulic oil filtration apparatus 40 comprises an actuation control valve V, a pump-pressure oil passage 41, a connection oil passage 43, a tank oil passage 51, a return filter 60, a drain oil passage 53, a drain filter 70 and an aspirator structure 90. The actuation control valve V controls to charge and discharge a hydraulic actuator A such as a boom cylinder 22 and travel motors with hydraulic oil from a hydraulic pump P, which is connected through the pump-pressure oil passage 41 to the actuation control valve V The hydraulic actuator A is connected with the actuation control valve V by the connection oil passage 43, and the actuation control valve V is connected to a tank T by the tank oil passage 51, in which the return filter 60 is provided. The part of the tank oil passage 51 downstream with respect to the return filter 60 is connected to the hydraulic pump P by the drain oil passage 53, in which the drain filter 70 is provided.

Abstract: A coal bed methane wastewater treatment system for efficiently and cost effectively treating wastewater generated from coal bed methane production. The coal bed methane wastewater treatment system includes collecting wastewater into an ozone diffusion tank where ozone is injected into the wastewater, passing the wastewater through a prefilter tank and then through a primary membrane. The treated water is separated to a permeate tank and the concentrated water is passed through a secondary membrane for further separation. The concentrated water is then placed within a holding pond for evaporation thereof. The treated water may be utilized to clean the prefilter tank and the membranes. The treated water is then dispensed into a sodium adsorption ratio tank prior to being released to a natural waterway.

Abstract: A variable compression disc filter housing secures a circumferentially welded composite layer of filter disc material for filtering a small amount of liquid for determining the optimum filter media material for specific production applications.

Abstract: A manifold assembly (12) for a medical waste collection device (10) is provided. The manifold assembly (12) comprises a housing (14) and a cap (16) connected to the housing (14) by a snap-fit connection (18). The housing (14) includes a bottom (20) and a wall (24) extending upwardly therefrom about an axis (26). A support structure (22) is disposed on the bottom (20) of the housing (14) to support a plurality of filters (60, 62). The support structure (22) includes spaced inner (38) and outer (40) rings. The support structure (22) further includes a plurality of inner spokes (52) extending radially between the axis (26) and the inner ring (38) and a plurality of outer spokes (44) extending radially between the inner ring (38) and the outer ring (40). The rings (38, 40) and spokes (44, 52) have upper surfaces that are coplanar to define a filter support surface (30).

Abstract: Device for filtering fluid substances, used for a meat materials injecting machine which comprises a coarse filter (1) provided with means (2) for retaining and withdrawing from a fluid the largest particles, and at least a first and a second fine filters (3a) for retaining the smallest particles remaining in the said fluid prefiltered by the coarse filter. The said fine filters (3a) are mounted in respective supporting means (10a), independent from each other, fastened on selecting means (9a). Each of the said supporting means (10a) can independently adopt a working position in which the said selecting means (9a) allow that the fluid passes through related fine filter (3a) and a cleaning position in which the said selecting means (9a) block the passage of the fluid through related fine filter (3a), which can be dismounted for its cleaning.

Abstract: Methods and apparatus for qualitatively or quantitatively determining one or more analytes in matrices such as foods, biological fluids, etc. An embodiment for determination of a single analyte comprises a sample receiving vessel, a first membrane and a reagent-containing well. The prepared sample passes through the first membrane whereby extraneous matter is removed, and a filtrate enters the reagent-containing well to provide a filtrate-reagent admixture from which the analyte may be determined. An embodiment for determination for multiple analytes includes one or more additional membranes in series with the first membrane, each such additional membrane being operative to capture one or more analytes. Each of the additional analytes may then be eluted from the membrane upon which it has been captured, into a separate reagent-containing well to provide eluant-reagent admixture from which each desired analyte may be determined. Formulations for preparation additives are also included.

Abstract: A combination filter assembly having a plurality of filter sieves positioned in parallel one after the other in the direction of flow. The filter sieves are stretched and mounted in housing elements to form filter elements. The housing elements are in contact with each other by means of top and bottom bearing faces, and are maintained in a stack. The filter elements have a cylindrical shape with annular bearing faces, wherein one bearing face includes a centering male coupling and sealing formation, and the other bearing face includes a corresponding centering female coupling and sealing formation.

Abstract: This invention is directed to systems and methods for removing lipids from a fluid or from lipid-containing organisms from a fluid, such as plasma. These systems combine a fluid with at least one extraction solvent, which causes the lipids to separate from the fluid or from the lipid-containing organisms. The separated lipids are removed from the fluid. The at least one extraction solvent is removed from the fluid or at least reduced to a concentration enabling the fluid to be administered to a patient without undesirable consequences. Once the fluid has been processed, the fluid may be administered to a patient who donated the fluid or to a different patient for therapy.

Abstract: A system to restrict and remove debris and pollutants from runoff water received from surrounding areas. A receptacle receives the runoff water, and a grate detains the heavier part of its solids burden. A first screen within the receptacle detains solids of lesser size. Water passed by the first screen encounters a tubular second screen in the receptacle which passes water that was additionally screened by it and sends it to a downstream system. A weir at a sensitive level in the receptacle can by-pass the second screen. The second screen is preferably rotatable.

Abstract: The present invention provides a multistage liquid filtering apparatus and a multistage process for filtering microorganisms and other unwanted impurities from the liquid. The invention employs a microorganism-removing filter stage prior to an activated carbon filter stage and especially adaptable for use with home water supplies.

Abstract: A suction strainer includes a plurality of strainer bodies in flow communication with suction inlet of a pump. The strainer bodies include flow control apertures that are sized and aligned with the suction exit of the bodies to allow for control of the flow characteristics of the fluid being suctioned through the bodies. The flow control apertures can be sized to provide collective aperture areas that increase distally away from the suction exit of the body and the suction inlet of the pump.

Abstract: The present invention involves a filter element assembly (10), which is useful in removing undissolved adhesive bodies from oil. The assembly includes at least one cylindrical body 11 of principal filter medium for removing particulates from oil. Body 11 has an inlet end and an outlet end. A secondary filter medium 20 for removing undissolved adhesive bodies from the oil is located around the sides and across the inlet end of the principle medium (11). A flow affording spacer 926) is disposed between the sides and the inlet end of the principal medium (11). A preferred spacer (26) is a non-woven expandible mesh present in a partially expanded state and having elements (27,28) grouped in first and second sets in which the elements (27) in the first set are laid atop the elements (28) in the second set. A readily cleanable containment vessel (39) for the filter element assembly (10) includes a tubular body (41) which is releasably connectible in liquid tight relation to a bottom cover (44) for the body (41).

Abstract: A pipe mounting apparatus for a water filter includes a first half body with a top, a first pipe assembly, a second half body with a top, a second pipe assembly and a mounting bracket. The first pipe assembly is formed on the top of the first half body and has a pump inlet and a pump outlet. The second half body is attached to the first half body. Likewise, the second pipe assembly is formed on the top of the second half body and communicates with the first pipe assembly to form a water filtering loop. The mounting bracket is mounted over the two half bodies to support a booster pump. Consequently, the booster pump will be quickly and easily connected to the pump inlet and the pump outlet with fittings or pipes to pump the water into the water filter.

Abstract: A multi-stage filter, wherein the first stage of filtration comprises a coarse filter to remove the larger impurities. The second stage will remove the finer impurities from the liquid (oil) that have passed through the first stage (coarse filter.) The first and second stage filter shall reside within a single housing. The housing will have both an inlet port for receiving the unfiltered fluid (oil) and an discharge port for passing the filtered fluid (oil) back into the system. The first stage, or coarse filter element has an opening adjacent the inlet, such that fluid entering through the inlet will first pass through the coarse filter element.

Abstract: A sealed filtration system includes a housing, having two chambers, that can be submerged. One chamber houses a plurality of subchambers in which various filter media are located, and the other chamber houses a submersible pump or additional filer media. A drain chamber and port is also defined within the housing for each chamber. An external pump can be to the housing.

Abstract: A fluid filtration assembly (10) operable to provide both return-side and supply-side filtration, as, for example, of a fluid entering and leaving a sump (14) as it circulates in a vehicle transmission (12). The fluid filtration assembly (10) broadly comprises a return-side filter (18) and a supply-side filter (20). The return-side filter (18) includes a filter media (33) operable to filter relatively small particles. Fluid flow through the return-side filter (18) may be accomplished using any of three described alternative embodiments, including upflow, downflow, and direct feed. The supply-side filter (20) includes a filter media (42) for filtering needed fluid as it is drawn back into circulation. The supply-side filter media (42) is a low restriction filter media operable to filter only relatively large particles, thereby decreasing bottle-neck effects and minimizing pressure drops.

Abstract: A filter apparatus is provided which includes a first filter membrane element (40a), and a second bacterial filter membrane element. The first viral filter element (40a) is capable of treating water at a first second flow rate and is adapted to remove contaminants which are larger than a first size, while the second bacterial filter element (40b) is capable of treating water at a second higher flow rate and is adapted to remove contaminants which are larger than a second contaminant size. The first and second filter elements (40a), (40b) may be commonly housed within a sealed housing. An accumulating vessel (60) is placed in fluid communication with an outlet of the first filter element (40a) and an outlet of the second filter element (40b). The filter apparatus includes a duck bill type check valve (75) made of an antimicrobial material intermediate the second filter element (40b) and a dispensing faucet (70).

Abstract: A system (11) for providing purified water comprises a plurality of individual modules, each of which includes a separable head (13) and a canister (17), which modules are joined one to another via these heads to create a composite manifold (15). The heads and canisters are respectively of substantially identical construction, and the hollow canisters include the following units: preheater, prefilter (25), pump (27), membrane purification (29), postfilter (31), and UV treatment. The overall system is monitored by a control unit (131) that is regularly interrogated by an off-site, headquarters computer, and both the control unit (131) and the headquarters computer are proactive in detecting potential difficulties that may be able to be readily remedied by promptly dispatching a serviceperson with a replacement for the canister containing the operating unit that requires replacement.

Abstract: A serial-flow filtration device is provided with pressure-activated means for by-passing at least one of its constituent layer (or layers) of filtration material. The filtration device comprises a housing, a fluid inlet, a fluid outlet, and at least an upper and a rearmost filter layer. The upper filter layer divides the interior of the housing into an upstream zone and a downstream zone, with the rearmost filter layer residing in the downstream zone. The fluid inlet enables the introduction of fluid into said upstream zone. The fluid outlet enables releases of the fluid from said downstream zone. The upper filter layer, but not the rearmost filter layer, has integrated thereinto a pressure-activated means capable of allowing substantially non-selective passage of fluid from the upstream zone into the downstream zone upon the attainment of a predetermined pressure differential across said upper filter layer.

Abstract: A honeycomb structure comprising at least one main honeycomb structure 10 and sub-honeycomb structures 21, 22 axially disposed, in series, on both end surfaces of the main honeycomb structure 10. Partial plugs 15 are constituted for some of the cells 11 of the main honeycomb structure 10 by facing the intersecting portions of partitioning walls 211, surrounding the cells of the sub-honeycomb structure 21 disposed adjacent to the main honeycomb structure with some of the cells of main honeycomb structure, and the arrangement of the partial plugs 15 at one end surface 101 of the main honeycomb structure differs from that at the other end surface of the main honeycomb structure 10.

Abstract: A cost effective solution preparing apparatus includes a chamber which is divided into two compartments by a movable partition; a dissolving solution supply line for supplying a dissolving solution to the first compartment of the chamber; a solution tank connected with the first compartment and the second compartment through a first solution preparing line and through a second solution preparing line, respectively; a transporting pump provided in the second solution preparing line; a concentration meter; a solution transporting line for transporting the solution prepared and filled in the second compartment to a point of use; and a circulating line, in which the solution tank is exemplified as a U-shape tank constructed of a relatively small-diameter upstream tank portion and a relatively large-diameter downstream tank portion, and at least one filter is provided in a downstream portion of the downstream tank portion.

Abstract: A reusable, ecological, long lasting, washable, non disposable filter for lubricant oils and fuels to be used in internal combustion engines or in any other equipment to help prolong the live of the lubricant oils and equipmen One or several essentially cylindrical independent filtering element place one inside the other, each filtering element consisting of a fine stainless steel cloth of a different mesh as needed for an optimal filtration, filtering out large, medium and small particles down to 5 microns if needed. The fin stainless steel cloth is enclosed in and retained by an open mesh and a number of rods that forms a cage extending longitudinally between two en caps being joint to form an assembly of a single unit by resin caps at each en thus forming an independent, leak proof filtering element that keeps the fine stainless steel cloth in position even during cleaning procedure that includes pressurized air that is forced through.

Abstract: A portable water purifier having a housing, a handle, an input tube, an output valve, a power supply line, and a water purification system. This water purification system includes a preliminary filter, a pump, two reverse osmosis units and a discharge tube. The preliminary filter can be placed in a river or a lake. The power supply line can connect to an electric energy source, such as electric generator, solar electric generator, and so on. So, it is very convenient to use it indoors or outdoors.

Abstract: A developer liquid regenerating system is provided with a storage tank storing a TAAH (such as TMAH)—and photoresist-containing developer waste liquid, first separating means with NF membrane, connected to the waste liquid storage tank through conduits, a storage tank connected to the first separating means through a conduit, and second separating means with NF membrane, connected to the storage tank through conduits. The developer liquid regenerating system is also connected to a developing apparatus through a conduit connected to the storage tank, and to a developer liquid control/supply apparatus through a conduit connected to the storage tank.

Abstract: A filter head assembly is configured for connection to a water line and including at least two filter heads connected to each other for treating water supplied through the water supply line and at least one of the filter heads accommodating a replaceable filter bowl. The assembly includes at least one head housing having an inlet port, an outlet port, a central chamber in fluid communication with the ports and a bowl connection opening in fluid communication with the chamber. Each of the ports is pivotally connected to one of a tubular connector and an end plug fitting so that the head housing can pivot relative to the respective connector and/or fitting.

Abstract: The present invention relates to an improved process for the preparation of ready-to-drink, shelf stable sugarcane juice beverage using a membrane-processing unit and subsequent pasterurization.

Abstract: A collapsible water treatment digester includes a flexible bladder, a frame, and a plurality of filter plates. The flexible bladder is movable from a collapsed position wherein the bladder is folded into a substantially flattened state to an expanded position wherein the bladder forms a water treatment chamber. The frame is connected to the bladder so as to support the bladder in the expanded position. The filter plates are disposed within the water treatment chamber of the bladder so as to cause a substantial portion of the solids from a wastewater stream introduced into the water treatment chamber to produce a reconditioned water stream dischargeable from the bladder.

Abstract: The invention relates to a device for fractionating mixtures comprising separation elements which are series mounted and mounted in a closed loop. Said device is characterized in that the solvent used is a supercritical pressurized fluid, each of the separation elements is made of a membrane separation, it comprises means for injecting the solvent at a pressure which is greater than the critical pressure thereof and for maintaining the pressure in said loop at a value which is above critical pressure, and it further comprises means for injecting the diluent and for maintaining the pressure thereof at a value which is similar to the value of the pressure of the solvent (S) in each of the areas (I, II, III, IV).

Abstract: A molecule separator device for isolating molecules having at least two separable properties and within a solution. The device includes a housing, and at least two molecule collection media disposed within the housing, whereby each such medium captures molecules exhibiting a respective property. In one embodiment, a first membrane captures only molecules with an ionic and/or hydrophobic and/or affinity attraction property while a second membrane captures only such molecules that additionally fall within a particular molecular weight range. A preferred housing is cylindrical for acceptance within a centrifuge, and is constructed of a plurality of releasably-connected compartments. The collection media is sequentially situated and centrifugation of the housing drives the solution through the media.

Abstract: A cart, preferably welded aluminum, supports both vertically and horizontally for rolling and transport a reverse osmosis and pressure pumping system. In the system preferably (i) two series-flow-connected pre-filters of, nominally, 5 micron sediment and KDF carbon types, that are preferably series-flow-connected with (ii) an optional anti-scaling device, both receive and pre-filter input water. Pressure of the pre-filtered input water is boosted to, nominally 150 p.s.i., in a first pump of nominal 3 g.p.m. flow capacity before being supplied to preferably 3 series-flow-connected RO membrane filters, each typically with a membrane of 2½″×40″ and a flow capacity of 1,300 gallons per day. Water purified to, preferably, less than 10 and nominally 7 ppm Total Dissolved Solids (TDS), is boosted in a second, 2 gpm, pump to, preferably, about 1000 p.s.i., with a nominal 1 gpm waste water going to drain and/or for recycling.

Abstract: A bracket system holds a filter(s) in quick-attach and quick-release fashion. Brackets are combined in modular fashion, with conduit between the brackets, to create a “bank” of filters easily changed in number, arrangement, and flow scheme. Top brackets and bottom brackets capture/support the top end and bottom end of a filter, respectively, and filter inlet and outlet ports preferably slide onto and off of cooperating tubes/ports in the bracket modules without tools or threaded connections. A retainer may pivot on and off of its respective filter, holding the filter in place and releasing the filter, respectively. After pivoting the retainer up from the filter, the filter may be lifted up off of its respective bottom module, so that the filter is substantially vertically and pivotally removable from the bracket system.

Abstract: A disposable net assembly is provided for a trap for collecting floatable debris in a waterway or combined sewer system. The net assembly includes a knitted bag-shaped mesh net having a frame surrounding the mouth of the net with the net secured around its rim to the frame. The net may be formed of an inner layer and an outer layer of mesh with the openings of the inner layer being substantially larger than the openings of the outer layer. The frame may be formed of a plastic molded material having side members tapered in the vertical direction to facilitate the changing of the netting assemblies and tapered in the downstream direction to lock into place under the force of the flow. Several embodiments of the frame members have projections thereon which cooperate with a clamping element to hold the net to the frame. Some embodiments of the members have parts that lock together with a post and hole construction while others employ a tension band to clamp the net to the projections on the frame.

Abstract: A filter system especially useful in the treatment of waste material, in particular liquid waste material which may include particulate matter therein. The filter system includes a series of filters of progressively finer porosity in order to selectively eliminate particulate (or semi-particulate) matters from a carrier material, typically but not exclusively, of a fluid or liquid nature. The filters are mounted within a housing which includes an outlet port and a plurality of inlet ports, wherein each inlet port includes a check valve.

Abstract: In an apparatus for separating at least one component from a fluid mixture, comprising a plurality of hollow fiber membrane frames through which a carrier fluid is conducted while the fluid mixture flows through the frames in a direction normal to the hollow fiber membranes supported in the frame, a plurality of frames are stacked on top of one another and shaped so that, together, they form a sealed tubular structure for guiding the fluid mixture past the hollow fiber membranes extending across the frames.

Abstract: A desiccant container (2) which comprises a generally cylindrically cross-sectioned cup, two dual-density fiberglass discs (6, 8), desiccant material (4), and a cap (16). The cup includes an outer annular portion, an inner tubular portion, and a bottom which connect together to define a space within. The cap (16) has a planar portion with an aperture for receiving the inner wall portion of the cup and is designed for receipt in the chamber to cover the opening. The cap further includes an outer annular rim portion extending transversely from the planar portion. The peripheral flange portion having tabs with an edge portion which permit the cap to cooperate with the outer wall portion having tabs with an edge portion which permit the cap to cooperate with the outer wall portion so that the cap can be retained within the chamber in one of a number of axially spaced positions to prevent shifting of, and escape of the desiccant.

Abstract: A process water treatment and recycling system clarifies and purifies the process water in a food processing or similar system wherein the treated water may used in the fresh water stream of the system. Removal of useful byproducts in the process water stream is also facilitated. The system is a mechanical filter system and does not use any chemicals. The system is a multiple step filter process. Additional steps may added where further clarification is required and fewer steps are contemplated in certain applications. The system incorporates multiple mechanical screening to remove the solid waste from the water stream. Experimental result have established that up to 100% of TSS, 100% of BOD and 86% of COD are removed. This brings the water to acceptable recycling purity ranges and reduces the amount of fresh water required to be added to the system by as much as 50%. It also increases the recovery level of useful byproducts such as starch.

Abstract: A solid phase extraction (SPE) device having a reservoir with an opening; a well comprising an internally tapered wall, the wall having a wider interior diameter at an end closest to the opening than at an exit spout; a first filter placed within the well; a bed of sorbent particles placed within the well below the first filter; and a second filter having a diameter smaller than the first filter placed within the well below the bed of sorbent particles and above the exit spout is provided. A method of performing SPE using the device is also provided.

Abstract: A filter system for receiving an oil-in-water emulsion contaminated with an emulsified contaminant oil, and separating the emulsified contaminant oil from the oil-in-water emulsion includes a filter media for receiving the oil-in-water emulsion and emulsified contaminant oil, having an inner filter element formed from a 95 percent single pass efficiency 48 micron (5 micron nominal) filtering material of needle punch polypropylene felt, an outer filter element formed from a 95 percent single pass efficiency 19 micron absolute filtering material of a polypropylene microfiber material and a porous spunbond polypropylene sandwiching the outer filter media. The filter element de-emulsifies the emulsified contaminant oil from the oil-in-water emulsion into the contaminant oil and the oil-in-water emulsion, separates the de-emulsified contaminant oil from the oil-in-water emulsion, coalesces the separated contaminant oil and passes both the coalesced de-emulsified contaminant oil and the oil-in-water emulsion.

Abstract: A modular system for putting together different sized filter elements, especially filter elements having different lengths, more particularly filter devices for hydraulic fluids, comprising a support tube that defines an inner cavity in the corresponding filter element, said tube being surrounded by a filter mat that is substantially cylindrical and that matches the different dimensions and having passages to let the fluid pass through. The filter elements also contain at least one coupling member enabling connection on the end side of a corresponding support tube to an additional support tube having a location on the end side for interacting with and locking on the coupling member. Each coupling member is embodied as an attachment plug element with a crown consisting of interspaced tabs extending in axial direction and hooks for snapping on the location of the attached support tube.

Abstract: A wastewater treatment apparatus comprised of a water inlet 10, a filter component comprised of a series of filters 20, 30, 40 and settling ing areas 12, 22, 32 over a grade, and a series of separator tanks, 42, 52 connected by a lift tube 54 for removal of hydrocarbons, particulate material and other impurities and a water outlet for discharge into either a general wastewater system or a gray water reclamation system.

Abstract: An arrangement for removing chips from a machining coolant prior to filtering out the finer solids in a main filter. A coarse weave belt is frictionally driven along a strainer bottom wall of an auxiliary tank suspended above the main filter tank, the permanent media belt of a coarse weave which allows the liquid and suspended finer solids to pass through while capturing the chips. A powered drag conveyor frictionally engages and drives the permanent media belt through the auxiliary tank, each diverging when returning across the top and bottom respectively of the auxiliary tank prior to being recirculated through the auxiliary tank.