Abstract: A pump system includes a submersible pump and a filter. The pump has a housing, an intake, and a discharge. The filter includes a filter housing that releasably engages the pump and that overlies the intake of the pump. The filter housing has an intake, an outlet located between the intake of the filter housing and the intake of the pump. A filter chamber is located upstream of the outlet of the filter housing and is configured to receive filter media. The outlet of the filter housing is disposed inline with the intake of the pump. The coupling may comprise a latch that clips or snaps onto part of the pump, releasably attaching the filter housing to the pump. The latch may engage with opposite sides of the pump when releasably attaching the filter housing to the pump. The latch may include a plurality of spaced apart snaps that snap onto the pump.

Abstract: According to various aspects and embodiments, a system and method for treating, storing, and delivering one or more liquids is provided. The systems and methods may utilize a water treatment assembly comprising a tank that includes an internal flow structure, a telescopic fitting, and a multi-port head fitting.

Abstract: Filter assembly for a liquid medium comprising a two-piece filter housing having a first and a second housing part with a first and second end wall respectively, surrounded by a circumferential wall, said housing parts accommodating in the space defined between the end walls three layers of filter material, and with a spacer in-between having an open structure with upstanding ribs defining chambers there between and having two end planes which define abutment planes for two layers of filter material and with a passage crosswise to the plane thereof, and with between the second layer of filter material and the second end wall a third layer of filter material, in which all three layers of filter material are discrete layers, the space between the third layer of filter material and the second end wall, and the chambers in the spacer, being in connection to the filter outlet, and the space between the first layer of filter material and the first end wall being connected to the filter inlet.

Abstract: A filter is provided having more than one density of media, or more than one type of media. Three or four types of media may be arranged. Some or all of the media may be of different density material from each other. A spacer grid separates at least two of the media apart. One or more flanges on the spacer each respectively space apart two of the media from each other at a location. The one or more flanges provide a respective flow path through the flange.

Abstract: A filter is provided having more than one density of media, or more than one type of media. Three or four types of media may be arranged. Some or all of the media may be of different density material from each other. A spacer grid separates at least two of the media apart. One or more flanges on the spacer each respectively space apart two of the media from each other at a location. The one or more flanges provide a respective flow path through the flange.

Abstract: In an appliance for filtering liquids, in particular waste water, with filter discs lying on top of one another and forming a flow path for a liquid to be filtered, wherein the appliance has at least one device for generating a movement of the filter discs, provision is made that the filter discs have means by which mutually adjacent filter discs are connected to one another with a form fit, these means being assigned to at least one circumferential portion of the filter disc. In particular, the means for form-fit connection are assigned to two mutually opposite circumferential portions of the filter disc.

Abstract: A filter for separating contaminants from fluids. The filter includes stages of differing materials arranged one after another wherein the first stage blocks and captures contaminants of a selected size and passes everything smaller than this selected size. The next stage captures contaminants of a selected size which is smaller than those blocked by the first stage. The subsequent stages capture smaller and smaller contaminants. The layers comprise various materials including stranded meshes, fibrous tissues, metallic screens and ceramic discs and tubes. Some of the ceramic discs and tubes include a downstream coating to capture further contaminants such as water droplets.

Abstract: The invention relates to a filtration cell that comprises a tank with a bottom wall (2) and four side walls extending upwards from the bottom wall as well as an upward opening, the four side walls including two opposite longitudinal walls (3, 5) as well as a front facing wall (4) and a rear facing wall connecting them, a filtration bed (7) supported in the tank, an outlet opening for discharging the filtrate, and a covering flap (24) protruding outwards from the top of one of said longitudinal walls, the longitudinal wall (5) opposed to that fitted with the flap including a lower portion (25) extending upwards from the bottom wall (2) and an upper portion (26) extending slantedly upwards and inside the tank from the top of said lower portion (25), and/or the front facing wall (4) comprises a bottom portion (27) extending upwards from the bottom wall (2) and a top portion (28) extending slantedly upwards and inside the tank from the top of said bottom portion (27).

Abstract: An above ground water clarifier is described. The clarifier includes a spray system for receiving water from an external system and disposing the water onto a filter tray rack. A first recovery chamber is positioned below the filter tray rack for receiving filtered water that is gravity fed through the filter tray rack. A second recovery chamber is positioned adjacent to and fluidly connected with the first recovery chamber. The first and second recovery chambers are formed to filter out solids and/or oils before passing the water to a sump chamber and/or the sewer. The sump chamber includes a plurality of tiered pumps for pumping the water back to the external system.

Abstract: A filter member for horizontal disc filters has a base plate having a peripheral edge and a hub connected to the base plate. The base plate has cavities extending in a radial direction of the base plate at a slant toward the hub, wherein the cavities are positioned closely adjacent to one another. The base plate has narrow projections formed between the cavities. A filter medium, providing a support for deposition filtration and cake-forming filtration, is formed as a thin filter plate with very small openings. The hub, the projections between the cavities, and the peripheral edge have support surfaces for supporting the filter plate. The filter plate is at least partially connected to these support surfaces by material bonding such as welding.

Abstract: A drainwater treatment system positionable within the vertical passageway of a drainage system utilizes a catch basin for accepting drainwater which flows downwardly into the drainage system and a filter-supporting section disposed alongside the catch basin. The filter-supporting section accepts drainwater which flows therein from the catch basin and permits drainwater to flow downwardly therethrough. First and second filters containing a hydrophobic material are positioned within the filter-supporting section for filtering contaminants from the drainwater flowing downwardly therethrough, and an overflow is associated with the catch basin and the filter-supporting section through which drainwater is permitted to exit the treatment system and bypass the first and second filters when the flow rate of drainwater into the system exceeds the rate at which drainwater is permitted to flow downwardly through the first and second filters.

Abstract: A dynamic filter system includes a dynamic filter assembly including one or more filter elements and one or more members disposed within a housing. The filter elements and the members are interleaved and arranged to rotate with respect to one another. The dynamic filter assembly preferably includes one or more mechanisms to prevent preferential fouling.

Abstract: A tower press filtering system (1) is provided. System (1) includes a frame assembly (10) having at least one support engagement portion (14); a collapsible filter tower assembly (20) having a plurality of displaceable filter plate members (20); a press assembly (30) having a support plate member (300), a compression mechanism (320), and a press plate (326); and, a stabilization assembly (40) for automatically maintaining press plate (326) in a fixed planar orientation during displacement thereof. System (1) also includes a port assembly (50) having a substantially rigid conduit segment (52) that maintains coupling with the manifold section (210) of at least one filter plate member (200). System (1) also includes a mechanism by which the coupling of each compression mechanism (320) employed may be adjustably coupled to support plate (300).

Abstract: The invention relates to a filter for the deposition filtration of liquids such as juice, wine, beer or the like. A filter packet (28) of plate-type filter elements (25), stacked one on top of the other, is disposed in a container (3), each filter element (25) having a hub (26) that is oriented in its position by a shaft (12) penetrating the filter packet (28). In the hub (26), there is provided an axial inlet line (36) for the material (18) to be filtered, which inlet line feeds by a plurality of inflow channels (46) which are situated to be uniformly distributed in the peripheral direction of each hub (26) and which lead substantially radially outwards. The inflow channels (46) open into an annular distributor space (47), from which the material to be filtered flows out. The material to filtered flows out via an outlet gap (45) situated above the inflow channels (46), radially into the space (29) between adjacent filter elements (25).

Abstract: A magnetic separator for separating magnetizable particles from a fluid is described. The separator is of the type comprising a separating chamber having an inlet and an outlet with means for establishing an axial magnetic field within the chamber. Two or matrix elements are positioned side-by-side axially along the chamber. Fluid separation means is provided for dividing a stream of fluid containing magnetizable particles supplied to the inlet of the chamber into two or more portions and directions each portion axially through a respective matrix element and thence to the outlet. For a given slurry feed amount, a greater matrix element area is provided. The matrix elements may be in the form of spaced annuli, the fluid portions being fed radially between adjacent first and second elements, axially through both elements and then radially between each element and an element adjacent thereto.

Abstract: A filter suitable for automobile oil filter includes a housing with a pair of casings connected together with open ends facing each other and having respective communicating ports, a partition wall interposed between the open ends of the casings and having a peripheral edge held between the peripheral edges of the casings and first and second through holes, and a filter medium unit including a first filter medium having a first communicating hole corresponding to the first through hole of the partition wall and a second filter medium having a second communicating hole corresponding to the second through hole of the partition wall. The first filter medium is held between the peripheral edges of the casings together with the peripheral edge of the partition wall at one of two sides of the partion wall so that the first through hole and the first communicating hole are laid each one upon the other and so that a peripheral edge of the first filter medium adheres closely to the side of the partition wall.

Abstract: A magnetic separator for separating magnetizable particles from a fluid is described herein. The separator includes a separating chamber having an inlet and outlet and a magnetic field generator for establishing an axial magnetic field within the separating chamber. Two or more magnetizable matrix elements are stacked axially within the chamber. A fluid distributor is provided for dividing a stream of fluid containing magnetizable particles supplied to the inlet of the chamber into two or more portions and directing each portion axially through a respective matrix element and thence to the outlet.

Abstract: A dynamic filter system comprises a dynamic filter assembly including one or more filter elements and one or more members disposed within a housing. The filter elements and the members are interleaved and arranged to rotate with respect to one another.

Abstract: A filter mat for use in reverse rinsing filter devices consisting of at least two filter mat devices and one static rigid filter mat base. The filter mat produces evenly distributed reverse rinse channels that provide even distribution of pressure in the filter mat.

Abstract: The present invention relates to a filter carrier 1 for the construction of a filter tower 9. To simplify the construction on the whole, the invention provides for a seal which is arranged on the pressure-exerting plate of the filter carrier and comprises a sealing edge for sealing between the pressure-exerting plate and. the side wall of a filter carrier positioned thereunder, as well as a sealing collar for sealing and retaining the distributor element on the pressure-exerting plate.

Abstract: The invention relates to a horizontal filter with a filter housing, in which an arrangement of superimposed, spaced filter elements is contained, and with distributor means supplying liquid to be filtered to the filter arrangement in a main direction of flow from below to the top, from which supply lines for the supply of liquid to be filtered branch off to the individual filter elements. A horizontal filter with a higher throughput is provided by the invention, since it is provided that the distributor means comprises distributor lines guided between the wall of the filter housing and the filter arrangement and supply lines in each case distributed across the circumference of the individual filter elements and branching off from the distributor lines, and that the supply lines are in each case provided with a flow reduction chamber, which has at least one communication opening to a distributor line and at least one outlet opening for the discharge of liquid to be filtered above the allocated filter element.

Abstract: A continuous filtration device, comprising cells (1) arranged in a carousel around an axis of rotation and each presenting a horizontal axis of tilt, follower elements (9, 10), carried by a lever (7), at least one stationary guiding element (13, 14) for each of the follower elements, an additional lever (21, 22) fixedly connected to each cell, a mobile stop (23, 24) and an elastic element (29, 30) connecting the stop to a fixed support (25, 26) and acting on the stop in a first direction, the additional lever cooperating with the stop by acting on it in directions always approximately opposite to the aforesaid first direction.

Abstract: A mud cleaning apparatus is set forth and has an upstanding cylindrical housing supported by a frame work with legs. There is a mud inlet line at the top of the housing. Centrally, a motor drives a drive shaft extending vertically in the housing and supporting cascaded circular screens which are rotated. Each screen has mesh openings to remove particles of particular size and mud flows through that screen into a funnel there below and is directed by the funnel into the next screen. Typically, three screens and three funnels are included wherein the bottom funnel connects with an outlet mud line to remove the clean mud. Trash removed from mud flow collects on the screens which are rotated, and such motion couple with vibration imparted to the screens causes the trash to migrate across the screens for ejection from the screens and accumulation in the bottom of the cylindrical housing and removal on a conveyor system.

Abstract: The filtering cell includes a tank having a base wall and a filter bed supported above the base wall which divides the tank into an upper compartment for receiving a substance to be filtered and a lower compartment for receiving a filtrate. The base wall includes an inclined end section adjoining an inclined drainage channel and further includes flow-off sections arranged on either side of the drainage channel. Because the drainage channel does not extend the full length of the cell, it can have a greater slope than in prior art cells, thereby enhancing fluid flow through the cell.

Abstract: A pool filter with a housing having at least one opening for an inlet and at least one additional opening for an outlet, in which housing at least one filter pad in contact with its margins is arranged with both its sides freely accessible such that one side of the pad is connected to an inlet chamber and the other side of the pad to an outlet chamber, is configured for the purpose of easy adaptability to various filter capacity and fineness requirements and for easy handling and maintenance such that the housing includes a plurality of flatly stackable housing elements each with at least one filter pad which form terminal units and intermediate units of a pool filter set, the intermediate units being configured identical to one another and having next to the filter pad a bottom for separating the inlet chamber and outlet chamber of adjacent filter pads.

Abstract: A filter apparatus having a plurality of filter zones that are disposed one above the other and have associated therewith at least one common unfiltered fluid channel and at least one common filtrate channel. Each filter zone has at least one filter sheet, which is provided on a filter element, serves for the deposition of a cake layer formed from at least one filtering aid, and separates a filtrate collection area that opens into the filtrate channel from a filling space disposed above the filter sheet. Provided for each filter zone is an annular distribution space, which extends about the central axis of the filter, opens into the filling space at its outer periphery, and in the region of the central axis of the filter communicates with the unfiltered fluid channel.

Abstract: A vacuum filter for the separation of solids from liquids, comprising an endlessly circulating array of troughs which constitute a common horizontal filter surface, on which an endless filter cloth is laid, in which each trough has an elastic sealing strip on that rimless edge which extends along the trough bottom transversely to the direction of movement. A good vacuum seal between two successive troughs with easy replaceability of the sealing strip is provided wherein the sealing strip is releasably clamped by a spring-loaded movable clamping bracket against the leading and/or rear edge of one of the adjacent troughs.

Abstract: A polymer filtering apparatus (1) is used to filter a molten polymer in a step of extruding a molten polymer to manufacture films and fibers. A plate type filter medium (4), which is incapable of resisting a filtration pressure, is supported at its rear portion on a liquid-permeable support member (5). Two pieces of filter media (4), (4) of the above-mentioned construction are arranged in opposition to each other so as to form a polymer passage (10) therebetween, and a polymer to be filtered is fed from this polymer passage (10) and through the filter medium (4) and support member (5). The plate type filter medium (4) and support member (5), which are detachably piled, can be separated, and the surfaces thereof can be easily washed. Moreover, the results of washing of both the primary and secondary sides can be inspected visually with ease.

Abstract: Vacuum rotary filter with horizontal filtering plane comprising a distributor consisting of a distributor part, a collector part and a gas separation chamber. The collector part (110) consists of a single vat divided into three compartments (139, 140, 141, respectively), for the mother water, the first washing liquid and the second washing liquid. The compartments may be interconnected so as to enable a fluid circulation in an imposed direction. The collector part also comprises a sector for annex operations and presuction.

Abstract: Tilting filter pans is disclosed having generally parallel leading and trailing sidewalls which are sloped at an angle to permit increased filtration rates for a predetermined filtering efficiency, and also to permit increased filtering efficiency where the feed rate is constant. The feed is a slurry from which the liquid is removed, and the filter cake being dumped by rotation of each filter pan at a predetermined point of movement of the filter pan along a cyclical path. Hold-down devices having a reduced volume are also used in combination with the improved pan design, so that an increased filtration rate is possible due to decrease in the required filter cake height. A cam arrangement is provided for turning the pans with minimum stress in a minimum length of pan travel, while avoiding collisions between adjacent pans and while permitting washing of each pan.

Abstract: A rotary disc filter element having a large surface area for tank filters, such rotary disc filter element being composed of a hub, a circular bottom plate mounted thereon, a filter mesh clamped above it, and a supporting mesh arranged between the bottom plate and the filter mesh. The bottom plate is stiffened by corrugations which extend substantially radially and coaxially of the hub.

Abstract: Tilting filter pans having generally parallel leading and trailing sidewalls which are sloped at an angle to permit increased filtration rates for a predetermined filtering efficiency, and also to permit increased filtering efficiency where the feed rate is constant. Drainage of the pans may also be improved. The feed is a slurry from which the liquid is removed, and the filter cake is dumped by rotation of each filter pan at a predetermined point of movement of the filter pan along a cyclical path.

Abstract: A basket frame for a traveling water screen includes a pair of hollow parallel lip beams connected together by end plates which are secured to the lip beams by plugs fixed to the ends of the hollow lip beams. The hollow cores of the lip beams are sealed against ingress of water so that the basket frame is buoyant in water. The lip beams are formed of pultruded fiberglass with cross sectional shapes which are provided with complementary curved surfaces so that the adjacent lip beams on adjacent baskets provide a close fitting seal on the vertical run of the basket train and also on the curved section at the bottom of the basket train where the baskets make the turn around the traction wheel.

Abstract: A metallic profile wire screen for a filter surface for use with a tilting pan type filter exhibiting sufficient open area for acceptable liquid flow with optimum spacing between the profiled wires for the retention of solids being filtered.

Abstract: A traveling water screen is provided with a support frame having a transverse tray for accommodating a conventional screen panel of a specific configuration or alternatively a modified screen panel having an integral pan for positioning over the transverse tray to provide special handling of seasonally varying screened material. A non-abrupt smooth transition at a transition margin between the screen material and the integral pan allows aquatic life forms to flow from the screen into the integral pan when the screen is backwashed without the aquatic material getting lodged between a screen retaining means and the screen.

Abstract: An anchoring device for anchoring a grid relative a frame member of a filter pan is disclosed. The anchoring device comprises an aperture defined by the grid. An open topped housing is rigidly connected to the grid with the open top of the housing registering with the aperture. An orifice is defined by the base of the housing and an inverted U-shaped strap removably extends through the orifice. The strap is rigidly secured to a cantilevered bracket which is rigidly connected to the frame member. A tapered surface cooperates with the strap and is removably wedged between the strap and the base of the housing.

Abstract: This invention discloses a prefabricated liner plate for lining the interior of a subterranean tunnel as a primary lining. The liner plate is formed in such a manner that an outer arcuate face has a depression formed therein so that a filter placed in the depression permits water flow therethrough, but prevents the passage of surrounding soil particles therethrough. Suitable conduit means allow any water which may pass through the filter to be bled through the liner plate and led out of the tunnel.

Abstract: In the embodiments of the web press disclosed in the specification, a pair of webs carries suspension material partly about a series of press drums of decreasing diameter in a first pressing section. One of the webs carrying the suspension material passes to a second press section where a further web replaces the other of the pair of webs to provide the inner web in a path around a press drum. Increased pressure is applied by a pressure belt to the webs as they pass around the press drum in the second pressing section.

Abstract: A filter element sealing device for a filter pan in which a rubber sealing strip cooperates with one or more ledges formed in the peripheral sidewall of the pan to lock the edge of the filter element between the sealing strip and the sidewall of the pan. A metal plate cooperates with the sidewall of the pan to merge the sealing strip against the sidewall of the pan to secure the filter element therebetween.

Abstract: A cell filter having a series of filtering cells and a distributor for collecting and adjusting the distribution of fluids passing through the cell filtering surface. Each cell has a planar filtering bed composed of a filtering cloth bearing on a rigid apertured support. Fluid passes through the cloth onto the cell bottom which slants toward a drain channel. The drain channel slants toward a discharge duct connected to a distributor. Guide members in the distributor fractionate, divide, and direct the fluid flowing towards the discharge duct into two parallel adjacent streams. The guide members are a series of baffle plates, located along the top length of the drain channel. The baffle plates are slanted, the plate farthest from the low end of the drain channel having the steepest slant.

Abstract: A fluid filtration apparatus including a filter packet enclosed by a container and comprised of a filtering element arranged on a hollow shaft through which filtrate is removed. The filtration apparatus also includes a seal arrangement to prevent filtrate from reentering into the space containing the fluid to be filtered. The seal and/or the part including the seal surface can be moved to form a gap to prevent damage of the seal during cleaning of the filtering elements.

Abstract: A multiple-plate filter apparatus characterized by a plurality of individual filter units, each having dual filtering surfaces. The filtering surfaces are defined in part by bags made of plastic cloth. During the cleaning cycle, a flotation collar raises the filter unit assembly to the top of the tank so that the individual units can be retrieved without reaching into the solution.

Abstract: A cell filter having a collecting part divided into chambers and compartments and provided with cavities. Each compartment is provided on the one hand at the bottom thereof with at least one liquid-discharge outlet lying substantially below that level where the cavities open and on the other hand, above the liquid top level, with at least one passageway towards a gas-sucking device in such a way as to suck the gases while causing the gases and liquids to separate and go along different paths inside the compartments, means being provided to return to the original compartment those liquids which might have entered the passageways so as on the one hand, obtain at the distributor outlet, liquid-free gases and on the other hand, collect through the discharge openings only liquids which are substantially free from undissolved gases.

Abstract: A filtering apparatus comprises a housing defining a generally closed chamber in which is provided a hollow rotatable shaft that carries a plurality of filter elements. Each of these elements is formed as an upwardly dished fluid-impervious metal plate formed with a central hole through which the hollow shaft passes and having a concave upper face formed with an array of spaced-apart bosses. A fluid-pervious filter cloth lies on the plate directly against the bosses so as to be spaced from the plate between the bosses. A ring secured to the smooth edge of each plate secures the respective filter cloth in place.

Abstract: A filter has a housing defining a closed chamber around a hollow shaft which is rotatable in the housing and which carries a plurality of filter elements so that fluid can be pumped through the filter elements into the hollow interior of the shaft. The shaft is rotatable with the filter elements relative to the housing for cleaning filter cake off the filter elements between filtering operations. An annular and hollow bellows-type seal surrounds the shaft and has one axial end secured to the housing and an opposite axial end engageable with the shaft for sealing the shaft relative to the housing. This bellows-type seal is made of thin and flexible stainless steel. The inside of the seal may be pressurized by a liquid or gas to force the end of the seal against the shaft and form a tight connection therebetween.

Abstract: A filter housing is disclosed. It is preferably used to house membrane filters supported on plates. The base, top and a two-way cap cooperate to form a pressure-tight vessel. The top can be moved vertically to permit use of various numbers of filters and support plates in the housing without requiring spacers or spacer tubes. The structure of the housing is such that all surfaces exposed to liquid are free of screw threads or other surface configurations which are not readily sanitizable or sterilizable, particularly by autoclaving. Also, since the tightening mechanism is outside the filter enclosure, the filters can be sterilized by autoclaving and subsequently tightened into position.

Abstract: A hollow upright shaft is surrounded at axially spaced locations by spacer rings. Intermediate these rings the shaft is surrounded by substantially horizontally oriented plate-shaped filter elements which rotate with the shaft. Each filter element has a liquid-impermeable annular plate the upper surface of which carries a filter material. The inner circumference of the plate is formed with a downwardly extending stepped collar which is received in the subjacent spacer ring and thus centers the filter element with reference to the ring and to the shaft. The latter has openings in its periphery through which filtered liquid can flow into the interior of the shaft, to be led away.

Abstract: In a filter apparatus of the type having a receptacle and an upright hollow shaft which is rotatable in the receptacle, a plurality of substantially horizontal filter elements are mounted on the shaft axially spaced thereon and rotatable with the shaft. Each of the filter elements includes a plate member which is imperforate and a filter cloth which overlies an upwardly facing side of the plate member. Spacers are located between each pair of adjacent filter elements, and each spacer includes a ring portion which surrounds the shaft and spaces the adjacent filter elements from one another, and a plurality of spoke portions which extend outwardly from the ring portion and of which each has an upper edge engaging a downwardly facing side of the plate member of the upper filter element of the pair, and a lower edge engaging the filter cloth on the lower filter element of the pair, in order to hold the filter cloth against the associated plate member.

Abstract: A filter characterized in that a plurality of screen plates each having a penetration hole at its central portion are disposed inside of a filter box in a stacked form with a distance between each other in such a manner that the penetration holes are aligned up-and down-wards. The raw liquid to be filtered is fed through said penetration holes and the filtrate is collected at plurality of portions disposed at a nearly equal intervals in the peripheral part of said screen plates.

Abstract: A filter unit for wet and dry filtration comprising a hollow shaft provided with ribs in parallel position with respect to the longitudinal axis of the said shaft, filter discs covered by a filtering material, said discs being stacked over and enclosing the shaft in positive connection therewith, the lower surfaces of the said filter discs having radial elevations the height of which corresponds to the distance between two adjacent discs, spacer rings provided with cams arranged between each filter disc and the respective filtering material, the said spacer rings enclosing the hollow shaft and the free cross sectional area between the cams of the said spacer rings diminishing from one disc to the other.