Abstract: A filter is disclosed. The filter includes a sheet of filter media defining a body having an upper portion, a lower portion, a first end surface proximate the upper portion, a second end surface proximate the lower portion, and a first side surface extending between the first and second end surfaces. One or more of the upper and lower portions define a ledge, wherein the ledge defines a third end surface arranged between the first and second end surfaces, and a second side surface extending between the first and third end surfaces; and a seal disposed upon the ledge. A method for manufacturing the seal is also disclosed.

Abstract: The present invention provides a fluid filter utilizing a polymeric membrane supports by metallic screens contained in a housing. The supports have apertures through which fluid can pass. The metallic supports are created such that they have at least one surface substantially free from burrs, so as not to damage the membrane. This smooth surface is in communication with the polymeric membrane. One or more indexing protrusions can be added along the circumference to restrict the relative movement between the supports, and to align the apertures of the two supports.

Abstract: Provided are membrane elements and membrane units capable of easily forming a space part surrounded with a frame body above the membrane elements regardless of the number of the membrane elements. That is, the membrane elements are membrane elements each comprising filtering membranes on both surfaces of a plate-like supporting plate, wherein spacer parts are formed in both side parts for keeping the membrane face distance to adjacent membrane elements being prescribed intervals, and the spacer parts have through bolt insertion holes and are extended upward from the upper end part of the supporting plate. The membrane units are configured by arranging a plurality of the membrane elements in such a manner that the channel parts formed in the spacer parts are brought into contact with each other, seal panels are installed in the outermost parts of the arranged membrane elements, and a frame body is formed by surrounding the space above the filtering membranes by the spacer parts and the seal panels.

Abstract: A header for filtering membrane module and a filtering membrane module using the same is disclosed, which is capable of maximizing efficiency in power consumption by securing a constant flow of permeate through the use of a relatively-low negative pressure, the header for filtering membrane module comprising a body with a permeate collecting space therein; and a conduit at one end of the body, the conduit being in fluid communication with the permeate collecting space, wherein at least a portion of the permeate collecting space has an inclined shape.

Abstract: A dual particulate filter assembly includes a filter frame and a first filter element and a second filter element mounted in the filter frame. The first filter element is configured to remove particulates from a first medium, and the second filter element is configured to remove particulates from a second medium different from the first medium.

Abstract: Liquid filter arrangements are described and shown. The arrangements generally include a filter head, a seal adaptor, and a filter member comprising a shell enclosing a cartridge. Unique features for interface between the filter cartridge and the filter head are provided. Also provided are unique filter head features and cartridge features.

Abstract: A fluid filter constructed and arranged for threaded engagement with a fluid-delivery head for the filtration of an incoming fluid includes a molded plastic shell having a sidewall formed with a retaining ridge, a closed end and an opened end surrounded by a series of external threads, a fluid filter media pack installed into the fluid filter shell, the media pack including filtering media and an upper endplate bonded to the upper end of the filtering media, wherein the upper endplate includes a peripheral lip that is constructed and arranged to snap into position axially beneath the retaining ridge. The threaded engagement between the fluid filter shell and the fluid-delivery head eliminates the need for any nutplate.

Abstract: A filter apparatus including a housing (2) and a filter insert (4), with an inlet opening formed on the housing (2) and an outlet fitting (6) mounted on a housing wall. The outlet fitting (6) has a contact face (7) for contact with the housing (2) and is provided with a tubular segment (13), which protrudes through an opening (9) of the housing, and a mounting element (22) is attached to the tubular segment (13) such that a region (10) of the housing (2) surrounding the opening (9) is clamped between the contact face (7) of the outlet fitting (6) and the mounting element (22).

Abstract: A tank is proposed for appliances which use water, in particular domestic appliances or appliances for preparation of foodstuffs and/or drinks, such as automatic drinks machines, in particular automatic coffee machines, drinking water dispensers, cooking and baking appliances, steamers, in particular steam irons, steam cleaners, high-pressure cleaners, air cleaners and air conditioners or the like, wherein a suction connection is provided on the tank for suction of water from the tank with means for production of reduced pressure, and a filter connection for connection of a filter cartridge in the interior of and/or outside the tank, while ensuring that only the permissible filter type is used. A tank according to the invention is distinguished by mechanical coding structures with a polygonal structure of the circumferential surface on the filter connecting element, in order to prevent the use of a filter cartridge which does not correspond to the tank.

Abstract: A tank for water-carrying appliances is proposed, in particular domestic appliances or appliances for the treatment of foods and/or beverages, such as beverage vending machines, in particular coffee vending machines, drinking water dispensers, cooking and baking appliances, steam appliances, in particular steam irons, steam cleaners, high-pressure cleaners, air purifiers and conditioners or the like, a suction connection on the tank for the intake of water from the tank, with means for generating a vacuum, and a filter connection for connecting a filter cartridge inside the tank being provided, while it is ensured that only one permitted filter type is used. A tank according to the invention is characterized by mechanical coding structures at the filter connection element in order to exclude the use of a filter cartridge which does not correspond to the tank.

Abstract: A fluid filter arrangement has a housing, a filter cartridge oriented within the housing, and a projection arrangement. The projection arrangement is oriented to space the filter cartridge from a wall of the housing in order to provide a fluid flow path between the filter cartridge and the housing wall. In some arrangements, the projection arrangement is part of an end cap. Embodiments of the projections include axial extensions, radial extensions, and angled extensions including both radial and axial components. Systems of use, methods of filtering, methods of making, and methods of servicing include arrangements of these types.

Abstract: A drinking water filter element includes a filter housing including a protruded portion on an end thereof. The protruded portion includes outer threading having a threading path in which a gap is defined. A cap is removably mounted to the end of the filter housing and includes a peripheral wall having inner threading on an inner peripheral face thereof. The cap further includes an opening extending through the peripheral wall and aligned the gap. A switch extends through the opening of the cap and movable between an engaging position engaged in the gap of the filter housing such that the cap can not be disengaged from the filter housing and a disengaging position disengaged from the gap of the filter housing such that the cap can be unscrewed from the filter housing.

Abstract: A labyrinth box can include a housing that has an open end, a closed end, and defines two cavities. A cover is configured to cover the opening and can include a divider that extends into one of the two cavities of the housing to define first and second chamber passageways in that cavity. An inlet port is located in the bottom closed end of one of the cavities and an outlet port is located in the other of the cavities. The surfaces that define the chambers can be configured such that the box can be oriented in different positions and still work, namely, in horizontal and vertical positions. When in the vertical position, the divider can include surfaces that are angled off of the horizontal plane and towards the inlet port such that water and debris will return to the inlet port via gravity.

Abstract: A filter element is removably positionable within a filter housing defining a filter chamber for said filter element. The filter housing comprises a standpipe extending within the filter chamber. The filter element includes a tubular filter media circumscribing the standpipe, a first end cap supporting the filter media at one end thereof, a second end cap longitudinally spaced from the first end cap and supporting the filter media at the opposite end thereof, and a center tube extending between the first and second end caps. The center tube has at least one inlet opening therethrough, a bypass opening at a first end thereof adjacent to the first end cap and a standpipe opening at a second end thereof adjacent to the second end cap and through which the standpipe is adapted to be inserted longitudinally into the center tube.

Abstract: A filter assembly is disclosed. The filter assembly includes a filter including a filter media, and an end cap; a filter container including an open end, and a wall portion defining a cavity that is adapted to receive the filter, wherein the wall portion includes an inner surface defining the cavity; and a close-out member removably secured to the filter container proximate the open end, wherein the close-out member includes a circumferential wall, an end wall, an inner surface, and an outer surface, wherein the inner surface of the close-out member includes one or more filter-retaining elements that engages the end cap, wherein the one or more filter retaining elements are located proximate one or more of the circumferential wall and the end wall, wherein the one or more filter retaining elements include a radial portion extending radially inwardly from an inner circumferential surface of the circumferential wall, and an axial portion extending axially away from an inner end wall surface of the end wall.

Abstract: A liquid filter element frame (7) is provided comprising an elongate injection moulded body, conveniently composed of a series of collinear injection moulded units (13). The frame has a plurality of support ribs (14) radiating from a central axis thereof and a support collar (17) encircling the outer edges of the ribs at the operatively upper end. The collar has formed integral therewith a plurality of radially inwardly directed support rails (18) having inner ends cooperating with the moulded body between adjacent support ribs thereof. Preferably, the collar has a number of inwardly extending support rails equal to the number of radially extending support ribs with the inner edges (19) of the support rails being received neatly in a corner formed between each pair of adjacent support ribs. The invention also provides a liquid filter including filter elements having such frames.

Abstract: The present invention discloses a water purification filter easily replaced by a connector which can simplify a connection structure of a water purification system by forming paths of feed water, purified water and concentrated water as one port, and which can be easily replaced after disconnection of a filter cartridge from the water purification system, and a water purification system using the same.

Abstract: A fluid filter assembly of a filtration system is described. The filter assembly described includes a cover member and a filter cartridge having at least one filter element and a plate member. The plate member includes a seal surface on one side facing the cover member, and a seal surface on another side facing away from the cover member. The seal surface facing the cover member is configured to seal with the cover member, and the seal surface facing away from the cover member configured to seal with another component of the filtration system. The assembly provides a structure that can retain a seal between sealing surfaces of the cover and the filter cartridge, at least while the fluid filter assembly is being serviced, so as to at least minimize fluid dripping and leakage.

Abstract: A filter element (10) suitable for installation in a liquid filter for cleaning a freeze-endangered liquid; the liquid filter having a housing (37), composed of a housing pot (38), a housing cover (39), and a filter element (10) situated in the housing pot (38), with the housing cover (39) screwed onto the housing pot (38) in a sealed manner. The filter element (10) has a first end disk (11); a second end disk (12), and a filter medium (13) interposed between the end disks (11, 12). The end disks (11, 12) are mutually connected by a supporting element (30), which prevents radial relative movements between the end disks (11, 12). In the axial direction, the supporting element (30) has snap hooks (25) which connect the first end disk (11) undetachably to the second end disk (12). As a result of this connection, the second end disk (12) can be reliably removed from the housing pot (38) by pulling on the first end disk (11).

Abstract: A case with a partitioning member in which the welding between a case and a cover and between the case and the partitioning member can be confirmed by an airtightness test. The case with a partitioning member includes a cover and a partitioning member held between the case and the cover. On the inside of a first welding portion in which the case and cover are welded to each other, a second welding portion in which the case and partitioning member are welded to each other is provided, and on the inside of the second welding portion, a third welding portion in which the case and the partitioning member are welded to each other is provided. Holes open to the atmosphere are provided in the case between second and third welding portions.

Abstract: A filter cartridge in a filter-in-filter design with an inner filter and an outer filter. A mechanism, for example crush ribs, connects an upper end plate of the outer filter and an upper end plate of the inner filter to prevent relative axial and radial movement therebetween when assembled. Relative axial or radial motion can create a rattling noise which is sometimes perceived as a low quality filter. The crush ribs are, for example, formed on an interior surface of the upper end plate of the outer filter, and the ribs engage an outer perimeter of the upper end plate of the inner filter. One or more of the ribs crush when the inner filter is installed into the outer filter to ensure tight axial and radial engagement between the filters.

Abstract: Processes for removing water from organic compounds, especially polar compounds such as alcohols. The processes include a membrane-based dehydration step, using a membrane that has a dioxole-based polymer selective layer or the like and a hydrophilic selective layer, and can operate even when the stream to be treated has a high water content, such as 10 wt % or more. The processes are particularly useful for dehydrating ethanol.

Abstract: A filtration system, for example a fuel filtration system in an engine, that helps prevent engine operation when there is no filter cartridge installed or a non-recommended and/or inferior filter cartridge is installed. The filter cartridge includes first and second endplates, one of which includes a fluid flow passage therein through which fluid can flow. The flow passage connects the clean fluid from the filter to a clean fluid outlet.

Abstract: An apparatus, system, and method for removing sediment from water is disclosed. According to one embodiment of the present invention, the apparatus includes a tubular filter assembly comprising a support member; and a filtratable element surrounding the support member, the filtratable element comprising a backing mesh; and a fibrous batting. A system for removing sediment from water is disclosed. According to one embodiment, the system includes a filter chamber to receive a liquid having suspended particles therein; at least one filtration cartridge housed within the filter chamber, wherein the filtration cartridge comprises at least one elongated filtratable element, each filtratable element comprising a support member, and a filtratable media adapted to surround the inner core. A method for removing sediment from water is disclosed.

Abstract: A “no filter, no run” filtration system that is designed to verify that a filter cartridge is present to safe-guard against damage to fuel injectors, associated fuel components, etc. and engine malfunctions. Fuel flow to the engine is prevented altogether or permitted in an amount insufficient to allow engine operation if a filter cartridge is not installed, and an appropriately designed filter cartridge is required to be used in order to permit sufficient fuel flow for engine operation. In one embodiment, a flow restriction valve is provided that includes a ball.

Abstract: A fluid filter arrangement includes a housing defining a slot arrangement. A filter cartridge is oriented within the housing. A projection arrangement engages the slot arrangement in the housing and spaces the filter cartridge from a wall of the housing to define a fluid flow path between the cartridge and the housing wall. A filter cartridge includes a tubular construction of filter media and a projection arrangement. A filter assembly includes the filter arrangement connected to a filter head. Preferably, the filter cartridge and filter head are made of plastic. Methods of assembling a filter includes inserting a filter cartridge and projection arrangement into an open end of a housing, engaging projections against through-slots defined by the housing to secure the filter cartridge in the housing. In some arrangements, a filter housing includes a plastic wall having an interior side with a support structure in the form of ribs extending from the interior side of the housing.

Abstract: A media in the form of a multilayered semi porous composite membrane containing a strong positive electrical charge with a highly porous surface consisting of 60 to 90 percent void volume and pore size of about 2 micron capable of retaining negatively charged protozoa, bacteria, and virus as well as di-pole particulate matter as a result of the attraction of the positive charge. A housing is a portable adaptive housing containing and supporting the composite membrane. A low pressure stream of water is within the housing and passes through the media. A composite membrane is positioned within the adaptive housing in the path of the low pressure stream of water. The composite membrane is adapted to treat the low pressure stream of water under from 0.3 to 10 psig pressure delivering 5 to 30 ml/sec.

Abstract: A filter apparatus is composed such that a filter element is housed and held in a cylindrical housing, which has one side open, so as to separate a flow-in side and a flow-out side of a fluid from each other. A filter element is basically composed of a filter body that is made by laminating and arranging plural sheet-like filter media with a gap. The filter element is formed by shaping the filter body into a pleated shape, and retaining the pleated shape.

Abstract: The water purification cartridge treats water with a halogen liberated from halogenated hydantoinyl resins and polymers, resulting in the safe, complete, and economical purification of non-potable water at low flow rates typically found in gravity feed filtration systems and at water pressures of less than 1 psig. The cartridge of the invention purifies non-potable water of bacteria, viruses, and some protozons without the need for additional power sources or risk to the consumer for exposure to chemicals that have been identified to have harmful, long-term effects. The cartridge described herein enables a gravity fed water purification system by combining the cartridge with conventional filters, such as porous diatomaceous earthen ceramic water filters or activated carbon filters packed either with granular activated carbon or block.

Abstract: The disclosure relates to a drain filter assembly that attempts to prevent drain blockages from forming by collecting particles such as food, hair and lint prior to entering the drain. In one embodiment, the filter assembly for filtering fluid passing into a drain comprises a housing and a filter. The housing has an upper portion, a lower portion adjacent the drain, and a perimeter surrounding the drain. The perimeter includes a plurality of openings having a height extending from the lower portion. The filter is adjacent the drain. The filter is contained within the perimeter of the housing.

Abstract: The invention relates to a filter insert (36, 66) for cleaning machines, in particular continuous-flow dishwashers (10), in which a batch to be cleaned runs through at least one treatment zone. The at least one treatment zone is assigned a washing tank (12). The filter insert (36) has a number of longitudinal ribs (38) which run parallel to one another and delimit flumes (48).

Abstract: A replacement filter for conventional throw-away spin-on oil filter cartridge on an internal combustion engine. The replacement filter uses a porous metallic filter element, preferably a woven stainless steel, pleated filter element, within a housing physically simulating the conventional throw-away spin-on oil filter cartridge. The housing is disassembleable, typically by unscrewing the top cap of the housing, for removal, cleaning and reuse of the filter element. This avoids the problems of cost and availability of replacement filters and of disposal of used filters. Various embodiments are disclosed.

Abstract: A filtration system comprising a floor panel and a plurality of wall panels connected to each other to define a box, at least one filtering wall vertically inclined and supported inward of a corresponding wall panel such as to define a first free space therebetween, a filtering floor horizontally inclined and supported above the floor panel such as to define a second free space therebetween, the filtering floor being connected to the filtering wall to define a filter chamber, a plurality of openings defined in the filtering wall and the filtering floor sized to let a liquid pass through and retain at least one target solid within the filter chamber, an inlet in fluid communication with the filter chamber, and an outlet in fluid communication with the first and second free spaces. A method of filtering at least one target solid from a liquid is also provided.

Abstract: The present invention provides a filter that can minimize the amount of residual liquid within the housing or container with a simplified construction. The article includes a cylinder portion having a cylindrical internal space with both ends open, a cylindrically formed pleated filter 5 inserted in the internal space of the cylinder portion 3 in contact with the inner wall of the cylinder portion 3 and having upper and lower edges liquid-tightly sealed. A perforate inner core 7 supports the inner surface of the pleated filter 5, lower and upper end caps 9, 11 are liquid-tightly bonded to the respective ends of the cylinder portion 3. A liquid distribution passage 21 communicates with gaps between the pleats of the pleated filter 5 from the lower portion of the cylinder portion 3. A liquid feed inlet 15 communicates with the liquid distribution passage 21 formed between the periphery of the pleated filter and a tapered inner wall surface 8 of the cylinder portion 3.

Abstract: A fuel filter for an internal combustion engine of a motor vehicle, comprising a divisible housing having a fuel inlet opening and an outflow opening, a replaceable ring filter element (3) mounted in the housing so that flow can pass through it radially from the outside to the inside, having an end disk on one end, namely a first end disk (13) and a second end disk, an alignment of the longitudinal axis of the ring filter element (3) that is upright during filter operation, an outflow channel (5) which leads from the bottom to the top out of the fuel outflow opening in the radial interior of the ring filter element (3), carrying filtered fuel away in a tube (4), a centrally arranged vent channel (6) that leads outward from the bottom and is closed at the top, with a throttle opening (7) in the upper closure, whereby this throttle opening (7) opens into the clean space or the crude space of the filter, should be designed so that the internal combustion engine cannot be operated when the ring filter insert

Abstract: A filter cartridge which comprises a filter pack (3) formed by a flat filtering medium, a tubular sheath (2) with a perforated wall, surrounding the filtering pack, and two respective end caps (5) having a first disc (16) and a second disc (17) placed one on top of the other, each made from thermoplastic, with a portion of the filtering pack (3) situated along one of its edges and a portion of the sheath (2) situated along one of its edges (33) which are embedded in the second disc (17), with the first disc (16) having a peripheral rim (19) which surrounds the relevant portion of the sheath (2) and with the sheath having a shoulder (34) opposite the edge of the rim (19) of the first disc (16).

Abstract: A fastening device and a method of fastening a component part in an oil pan are described. For easy and still secure mounting, the invention provides a fastening device that consists of a base part and, disposed thereon, of at least one holding part for establishing a preferably reversibly releasable, substantially shape-mating connection with a component part, the base part being connected to the oil pan, the holding part being a constituent part of the base part and the holding part being bendable over a fold region.

Abstract: A filtering device (10) comprises a plurality of layers of paper (40). The paper (40) is formed with projections (120)) so that cavities (122) are located between adjacent layers of paper (40). A liquid being filtered passes between adjacent layers, filling at least some of the cavities (122).

Abstract: A filter recycling unit includes a reservoir defining a cavity capable of storing fluid and at least a portion of a filter, at least one filter positioning member capable of positioning the filter at least partially within the cavity to drain fluid from the positioned filter into the reservoir; and a cover operably connectable to the reservoir. The cover is configured to at least temporarily store the positioned filter and is configured to substantially preclude the drained fluid in the reservoir from spilling during movement of the unit. The cover connected to the reservoir collectively defines a shape for the unit substantially similar to the filter.

Abstract: This concerns a device whose filtering membrane (4) is gripped annularly at the periphery between an annular transverse wall (32) forming part of a drainage body and an axially oriented cylindrical wall (9) of an intake body, which lateral wall has an elastomer seal (13) which forms the edge thereof and by means of which this wall comes into contact with the membrane (4), this device being provided with a second seal (55) which has an arched profile, the external annular end (61) of which bears against said annular transverse wall (32) radially beyond said membrane (4), and the internal end (57) of which is connected to said seal (13) on the lateral wall (9) of said reservoir (5), hereinafter referred to as the first seal.

Abstract: Disclosed herein are apparatus and methods for mitigating column bed compression over time. This invention provides for an improved column design and method of controlling bed density in a chromatographic column using a protruding portion of a filter assembly. The invention results in a higher sorbent bed density than can normally be achieved using a fixed length column of conventional design. The invention may be implemented as a unique filter assembly or as a column tailored for the application and a matching filter assembly.

Abstract: A filter assembly includes housing enclosing a replaceable filter element. A support core is provided in the housing, and includes an extension and locking assembly. The element includes a ring of filtration media with a pair of end caps. The first end cap includes a central opening to receive the support core. The extension and locking assembly prevents the cover of the housing from being attached to the housing body without a proper filter element installed. The extension and locking assembly includes a bypass member and a locking member, which are in locking engagement when an element is absent in the housing. The second end cap includes internal protrusions which engage the locking member when the filter element is installed to disengage the bypass member from the support core, and allow the element to be inserted and the cover to be installed.

Abstract: The invention concerns a module for filtering media. More particularly, the invention concerns a module for filtering fluids and including one or more filter cells stacked on top of one another. The invention also relates to an installation set for the installation of at least one such filter module in a filter housing, as well as to a filter device with a filter housing, in which the filter module or the filter modules is/are installed together with the installation set.

Abstract: A porous filter cartridge comprising: a cap being in the form of a bottomed cylinder and including an opening provided at the center of a bottom part thereof; and at least one porous filters held on the inner side of the cap, and at the bottom part, wherein the cap comprises a plurality of convex ribs provided on the bottom part side of the inner circumferential surface of the cap, and at a part on the circumference of the inner circumferential surface, the plurality of convex ribs protruding to the inside of the cap and bending the outer perimeter end of the at least one porous filters.

Abstract: A bypass oil filter system, and a method of installing same, for a vehicle having an engine compartment, an oil lubrication system having a full flow oil filter attached to a free flow oil filter mount and an oil intake line having an oil filler cap comprising, a bypass filter, means to mount the bypass filter in the engine compartment, a sandwich adaptor placed between the full flow oil filter and the full flow oil filter mount, hose means to direct a portion of the oil from the oil lubrication system to the bypass filter and hose means to pass the oil from the bypass filter through the oil filler cap to the oil intake line.

Abstract: A filter assembly for fluid filtration having a push-activated lock and release mechanism. The filter housing has a sump for enclosing the filter media, a filter head, and at least one standoff protruding outwards for use in securing the filter head to a filter manifold. The filter manifold supports the filter housing with a filter locator. A filter guide having a rotator actuating mechanism secures and holds the filter head in place when the filter head is axially inserted. The rotator actuating mechanism has tabs and slots that rotate upon a transverse axial force from the standoff and from tabs on an internal shutoff. The internal shutoff has an inlet extension and an outlet extension with apertures for fluid ingress and egress. The internal shutoff tabs slidably contact and align the rotator actuating mechanism to secure and remove the filter head.

Abstract: A cooking oil container has a filter cup retained at the upper end thereof. The filter cup retains a planar circular filter at the lower end and a seal between the filter holder and the bottom of the filter cup prevents oil from overflowing around the circumference of the filter holder to avoid the filter. The filter cup is spaced from the inner walls of the container to allow air to escape from the bottom of the container. The top of the container has a grip ring and the inverted top is useable as a drip tray for the filter cup while oil is being poured out of the container.

Abstract: A filter cartridge for liquid media at risk for freezing employed in fuel cell operated vehicles and internal combustion engines has a housing and a filter lid connected to the housing for closing the housing. A filter insert is inserted into the housing and provided with at least one filter element and terminal parts. The filter element is positioned between the terminal parts. The filter insert also has at least one pretensioning part for axially pretensioning the at least one filter element. At least one reinforcement part is provided that has at least one profiled section. It is inserted into the filter element and receives at least one of torque and axial forces. This prevents twisting of the filter element and improves the sealing action and the filter function.

Abstract: A multi-use two-reservoir bucket that combines various separate tasks and methods to make available more options. More specifically, the multi-use two-reservoir bucket is a two-reservoir system to supply liquid or material to a pump/sprayer, tools and accessories.

Abstract: A high capacity gravity feed filter for filtering blood and blood products or the like includes a body having an inlet port, an outlet port, two filter wells, at least one filter element disposed in each of said filter wells, between the inlet port and outlet port so as to filter liquid which flows into the filtration device via the inlet port. The filter elements divide each of said filter wells into a first chamber and a second chamber. The device allows gases to vent the filtration device through the outlet port. The means may include a through slot located at the top of each of said second chambers. The filtration device allows air therein to be purged downstream into a receiving blood bag without the manipulation of the height of the filtration device or the receiving blood bag.