Abstract: A modular water filter system having a plurality of filter canister receptacles, each receptacle having a diverter valve for routing water into and out of the particular canister installed in the receptacle. The diverter valves are interconnected by water hoses such that water is sequentially filtered by flowing into the first diverter valve, through its installed filter canister, then to the second diverter valve and through its installed filter canister, and through the succeeding diverter valves and filter canisters to a final tap. The filter configuration, including filter type, filter quality, and filter sequence, is changed by simply installing different filter canisters into the diverter valves. An intermediate taps can be connected to the output of any diverter valve to provide the user with water filtered by that diverter valve's filter canister and all preceding filter canisters.

Abstract: The present invention is directed to a point-of-use water treatment system (WTS) unit (20) for filtering and treating contaminants in water. WTS unit (20) may include a first primary coil (74) located in a base unit (22) which inductively power a secondary treatment device such as a UV lamp assembly (24). A filter assembly (26) is used which has a filter block (90) and an inner sleeve (92) which extends inside filter block (90). Inner sleeve (92) defines a chamber in which the secondary treatment device (24) may be disposed. First and second valves and seals may be interposed between the filter assembly (26), secondary treatment device (24) and base unit (22) to allow the filter assembly (26) and secondary treatment device (24) to be independently replaceable. Secondary treatment device (24) may be a lamp assembly (24) which includes a condensing element (84) to condense mercury in a bulb in the arc path between filaments (444).

Abstract: Disclosed is a unique filter assembly for ensuring replacement cartridge compatibility in filtration systems having replaceable filter cartridges with lugged mounting systems. One representative filter assembly includes a representative cartridge member having a body portion for enclosing filter media and a neck portion depending therefrom. The representative neck portion of the representative cartridge includes at least one axial inlet port for directing unfiltered fluid into the body portion and at least one axial outlet port for directing filtered fluid out of the body portion. The representative neck portion also has at least two representative lugs depending radially outwardly therefrom, wherein at least one lug defines a keyed engagement surface, a leading inclined cam surface and a trailing inclined cam surface.

Abstract: A fluid filtration system includes a filter receiver located in a fluid reservoir housing and a replaceable filter module adapted to mount in the filter receiver. Fluid to be filtered is exposed to a filter media included in the filter module and mounted in a filter chamber provided in the filter receiver. The filtered fluid is discharged into a fluid reservoir located in the fluid reservoir housing and outside the filter receiver. Low-pressure fluid is then pumped from the fluid reservoir to a fluid user and fluid discharged from the filter user is conducted to the filter chamber for filtration in the filter media.

Abstract: A fuel filtering system having a valve which prevents the flow of fuel in the absence of a fuel filter. The filtering system includes a housing in which a fuel pump is at least partially disposed. A valve mechanism is located on the discharge side of the fuel pump and includes a valve member which is movable between open and closed positions which, respectively, allow and prevent fluid flow through the fuel line. A biasing member is provided for biasing the valve member into the closed position. The valve member is engaged by the mounting of the fuel filter to thereby open the valve mechanism. In the absence of an installed fuel filter, the valve member remains in the closed position to prevent the flow of unfiltered fuel to the engine.

Abstract: The fuel filter housing (12) is formed of inlet segment (14) and outlet segment (16) that are telescopically mounted to each other, with a seal (44) positioned between the mounting flanges (38) and (40). Valve (60) is maintained displaced from its valve seat (58) by valve actuator (66), by the valve actuator engaging the perimeter of the filter (34). When the outlet housing segment (16) moves away from inlet housing segment (14), the filter and the valve actuator (66) also move, allowing the valve the close. The amplitude of movement of the valve (60) toward and away from its seat (58) is smaller than the sealed telescopic movement of the housing segments, so that the valve closes before the segments separate, thereby limiting the amount of fuel lost from the fuel filter assembly.

Abstract: Fluid separation assembly that allows easy and fast change-out even in confined spaces, and also minimizes or eliminates leakage during change-out. A fluid separation unit having a housing containing separation means, the housing having an inlet and an outlet spaced from the inlet, each including a fitting for attachment of the housing to a manifold or other device allowing fluid communication through the separation means to a point of use is provided. The fittings are designed for quick connect/disconnect, and for minimal or no leakage. The fittings may be on opposite ends, with top and bottom fittings of different configurations, thereby ensuring proper installation of the assembly. The particular medium to be separated is not particularly limited, and can include slurries, fluids including water, and pre-loaded chromatography columns.

Abstract: A method and apparatus for extracting, identifying, and manipulating proteins or peptides from a solution uses paramagnetic beads having a coating with an affinity for the target component. In one embodiment, paramagnetic beads coated with C18 are used to adsorb proteins and peptides. The beads can be used to purify, immobilize and assay antibodies. By cycling the beads, many times greater molar amount of binding partner may be separated from a solution. A magnetic probe is used to capture the beads and transfer the beads to selected processing stages.

Abstract: The invention concerns a filter comprising a sealed vessel containing various filtering components and consisting of a vessel (2) closed with a lid (3) equipped with a removable connector (7) for a pipe (9) supplying water from the tank and a pipe (12) returning water to the tank, each of the connecting elements of the two pipes on the connector being provided with a valve allowing or preventing water to flow through, and the connector is equipped with means to be fixed on the lid. The connector (7) is equipped with a single means (19) for simultaneously actuating the valves mounted on the two pipes and the means fixing the connector (7) on the lid (3).

Abstract: The invention relates to a filtering apparatus, the operation of which is based on alternating filtering and flushing stages. The apparatus comprises one or several filter elements placed into a filter housing supported by a casing, the filter housing being provided with an inlet assembly for the liquid flow to be filtered, an outlet assembly for the filtered liquid flow, and a channel for flushing the filter elements with air. Further, the filter housing is arranged to be prefilled with liquid before the next filtering stage is initiated after the flushing. According to the invention, a filling channel is directed into the filter housing through the casing, the channel being provided with a valve, which closes the channel at the same time as the filter housing is opened, for example, for changing the filter elements. Closing may be automatic.

Abstract: An oil filter unit has a drain valve device. The valve comprises a retainer axially movably received in a cylindrical bore of a drain passage at a position upstream of a valve seat. The retainer has a valve member holding end. A valve member is axially movably received in the retainer in such a manner as to be movable between a closed position where the valve member closes a drain bore of the valve seat and an open position where the valve member opens the drain bore. A coil spring is arranged to bias the retainer relative to the valve seat in such a direction as to cause the valve member to take the open position. The retainer has a projected portion that projects into the interior of a filter housing. When a filter element is properly set in the filter housing, the projected portion is pressed down to shift the retainer to a position to allow the valve member to take the closed position.

Abstract: A filter canister is disclosed that includes a main body having a top. An inlet port is positioned on the top of the main body and an outlet port also positioned on the top of the main body, offset from the inlet port by a predetermined distance. A filter cartridge is positioned within the main body that has an outlet end that sealingly engages the outlet port. An inlet port identifier is associated with the inlet port, and an outlet port identifier is associated with the outlet port. A valve is also disclosed that operates in connection with the filter canister.

Abstract: Disclosed is a manifold for a replaceable fluid filter cartridge. The manifold possesses inlet and outlet passages and a housing. A first valve assembly is provided in the inlet passage. The housing is provided with first and second fitting mechanisms which have second and third valve assemblies. Fitting portions of the first and second fitting mechanisms are fitted into outer and inner flanges of the filter cartridge. Upon coupling the filter cartridge to the manifold, a valve stem of the second valve assembly is positioned on an upper end surface of the inner flange, and thereby a flow channel is defined. Thus, fluid flows through the inlet passage into the filter cartridge. Upon decoupling the filter cartridge from the manifold, the valve stem of the second valve assembly is separated from the upper end surface of the inner flange to shut off fluid flow from the inlet passage into the filter cartridge.

Abstract: A disposable filter cartridge, in which the entire filter cartridge is disposable. The filter cartridge includes a tubular filter element substantially permanently retained to a lid such that the filter element cannot be removed from the lid without extreme force. The filter element includes a ring of filter media having ends potted in cup shaped end caps. The lid includes a central hub that is inserted through the opening in on of the end caps and ultrasonically deformed or flared radially outward to provide a lip that engages the top end cap for axial retention. The filter element is free floating and can be moved or tilted a small degree axially and can also be freely rotated relative to the lid.

Abstract: The invention relates to a filter device comprising at least one filter element (32), which can be accommodated inside a filter housing (22). Said filter device also comprises an inlet (16) for a fluid to be cleaned and an outlet (18) for the fluid cleaned by the filter element (32), whereby the filter element (32) is retained by at least one element retainer (106) of the filter housing (22). By virtue of the fact that a closing device (98) seals the interior (34) of the filter element (32) off from the environment when the filter element (32) is removed from the element retainer (106), a filter device is created which is improved with regard to the prior art and which, in particular, simplifies the necessary exchange of the filter element while imposing only a slight burden on the environment.

Abstract: A fuel filter includes a pair of housing portions defining an interior cavity. A pipe in the housing includes a central flow passage and an opening along the length of the pipe. An exterior groove is also provided in the pipe. A latch device with discrete fingers closely surrounds the pipe and is engageable with the groove to prevent the latch device from moving axially along the pipe. The latch device has an annular sleeve, radially-outwardly spaced from the fingers. A moveable valve device also surrounds the pipe and has a sleeve which normally covers the opening in the pipe. An annular base projects radially outward from the sleeve of the valve device and includes radially projecting tabs defining a plurality of slots. A filter element is removeably located in the housing and has an end cap with a valve-actuating portion. The valve-actuating portion includes a cylindrical portion and an annular base projecting radially inward from the cylindrical portion.

Abstract: A filter assembly is disclosed including a cartridge member having a body portion and a cylindrical neck portion depending from the body portion, the neck portion having at least one lug depending radially outwardly therefrom having a keyed surface formation thereon, and a reception member defining an axial bore for receiving the neck portion of the cartridge member, the bore having at least one reception area provided therein for receiving the at least one lug, the reception area having a compatible mating surface formation defined therein for engaging the keyed surface formation on the lug so as to prevent engagement with an incompatible cartridge member.

Abstract: A filter head and a spin-on fuel filter element where the filter head includes an inlet and an outlet. A threaded nipple extends downwardly from a base of the filter head and includes a central flow passage. A valve member located in the flow passage is normally biased closed. The valve member includes a threaded portion extending outwardly from the nipple. The filter element includes upper and lower end caps, and is located in a housing having a tap plate. The tap plate includes a threaded central opening for screwing the filter element onto the filter head. The upper end cap supports a threaded sleeve which is screwed onto the valve member. The sleeve/valve member combination has a different thread pitch than the tap plate/nipple combination, which moves the valve member to an open position when the filter element is installed on the filter head.

Abstract: A filter housing assembly for refrigerators is disclosed. The assembly comprises an upper filter housing, a lower filter housing, a valve, and a passage control lever. The upper filter housing has an inlet, an outlet, an inflow passage and an outflow passage. The lower filter passage is detachably combined with the upper filter housing and holds a filter element for purifying water supplied through the inflow passage of the upper filter housing. The valve has a first passage hole, a second passage hole and a third passage hole so as to selectively connect the inlet to the outlet, and the inlet and the outlet respectively to the first inflow passage and the first outflow passage. The passage control lever is fixedly connected at its one end to the valve so as to rotate the valve for the selective connection of the valve.

Abstract: A water treatment system 20 for filtering and treating contaminants in water includes a UV lamp assembly 24 coaxially received within a filter assembly 26. A valve system prevents water from being spilled from the filter assembly when the filter assembly is removed from the base unit 22 and the lamp assembly so that the lamp and filter assemblies are independently replaceable. The valve system includes a check valve 102 controlling flow between the lamp and filter assemblies.

Abstract: A filter manifold is provided in a water purification system and includes at least one filter element for producing relatively purified water, wherein the filter manifold incorporates a shut-off valve designed to prevent filter element removal unless the shut-off valve is first switched to a closed position for turning off the incoming water supply. The shut-off valve includes an elongated actuator lever which in a normal open position engages and retains a manifold latch plate in a latched position retaining the filter elements in connected relation with flow couplers to produce purified water. Upon movement of the actuator lever to a closed position shutting off the incoming water supply, the manifold latch plate can be unlatched from the filter elements to permit filter element removal and replacement.

Abstract: An adapter assembly for use in mating a filter cartridge to a filter manifold, includes an adapter body having a manifold coupler and a cartridge coupler. The manifold coupler is for mating with the filter manifold and has an inlet being fluidly communicable with a filter manifold fluid inlet and a fluid outlet being fluidly communicable with a filter manifold fluid outlet and having sealing means, the sealing means isolating an inlet flow of unfiltered water from an outlet flow of filtered water. The cartridge coupler is for mating with the filter cartridge and has an inlet being fluidly communicable with a filter cartridge inlet and being in fluid communication with the manifold coupler inlet and a fluid outlet being fluidly communicable with a filter cartridge outlet and being in fluid communication with the manifold coupler outlet and having sealing means, the sealing means isolating an inlet flow of unfiltered water to the filter cartridge from an outlet flow of filtered water form the filter cartridge.

Abstract: A water filtering system for a refrigerator determines a need for a filter change by timing the period of actuation of at least one valve used to regulate the flow of filtered water to both a water dispenser and an ice maker. Based on a known flow rate, a volume of filtered water associated with the duration of valve actuation is calculated. A summing device determines an accumulated, filtered water volume. When the accumulated, filtered water volume reaches or exceeds a threshold value, an indicator is used to signal that the water filter needs to be replaced. As water filtering system of the invention is capable of being operated without a water filter in place, a switch assembly is incorporated to sense the presence of the water filter and the system only senses the valve actuation time when the filter is in place. In addition, provisions are made to reset the accumulated, filtered water volume upon replacement of the water filter.

Abstract: A filter assembly for filtering water from an external source, the filter assembly including a manifold assembly mountable to an appliance and being in fluid communication with the external source and a cartridge assembly, the cartridge assembly being replaceably fluidly couplable to the manifold assembly, the filter assembly includes a first and a second fluid tube, the first fluid tube being fluidly couplable to the external source being an unfiltered fluid inlet, the second fluid tube being a filtered fluid outlet, the first and the second fluid tubes each having a barbed end for coupling to the manifold assembly.

Abstract: A water filtering system for a refrigerator includes a mounting head preferably arranged under a temperature control housing in a fresh food compartment. A replaceable filter cartridge is adapted to be selectively attached to the mounting head in order to complete a fluid circuit from a water supply source to at least one of a water dispenser and an ice maker. The filter cartridge and the mounting head have cooperating camming structure which axially draws a stem portion of the cartridge into a port of the mounting head upon rotation of the cartridge relative to the mounting head during installation of the cartridge. Furthermore, camming structure is also provided to at least partially, axially withdraw the stem portion from the port upon rotation of the cartridge a predetermined amount in an opposing direction. Also provided as part of the water filtering system is a plug which can be used to complete the fluid circuit in the absence of a filter cartridge.

Abstract: A water filter device mountable on a faucet facilitates water flow in substantially one linear direction through a filtering cartridge which comprises activated carbon or charcoal material. The water filtration device includes a valve assembly for selectively operating the filtering device for generating filtered or unfiltered water. The filtering device preferably includes a disc shaped filtering housing having a disc shaped filtering block of activated carbon material therein for filtering water. The present invention simplifies the flow path of water from the inlet through the filtering cartridge and provides for a more compact and lower profile filtering device which saves space in the sink associated with the water filtration device. It also provides for little or no pressure differential for flow through the filter.

Abstract: A filter assembly including an integral filter cartridge and storage pouch is disclosed herein. The storage pouch is configured to hermetically surround the filter cartridge upon removal of the cartridge from an opening of a liquid drainage conduit of the assembly. The drainage conduit can include a shutter for closing the opening of the drainage conduit upon removal of the filter cartridge.

Abstract: A wastewater filtration system with a housing provided by a cylindrical conduit forming a filter chamber and having an inlet end and an outlet. A shutoff valve assembly is connected to an inlet end of the housing, and includes a closure element movable between an open position and a closed position. The closure element is biased to the closed position in the absence of a filter in the chamber and positioned near the inlet such that the shutoff valve opens when a filter is installed. The closure element may be hinged to the housing, and may be counterweighted or spring biased to the closed position.

Abstract: A fuel transfer and conditioning unit for an automotive vehicle includes a reservoir with a generally cylindrical filter element and a pump module contained within the reservoir and extending within the filter element. A combination valve prevents forward flow of fuel through the pump module unless the filter element is installed within the reservoir and also prevents reverse flow of fuel from the engine in the event the filter element is removed for maintenance.

Abstract: A fuel filter comprises a head (96) having an inlet (100) and an outlet (102). The head is connected to an element (266) by a nipple portion (186) which has a valve element (196) therein. An actuating projection (222, 272) is engageable with said valve element to open flow through said nipple portion when the correct element is attached hereto. The actuating projection is further supported on a central portion (220, 276) which prevents connection to a nipple portion that extends too far into the element. According to a further embodiment, the filter includes a housing (412) with a removable element (424) mounted therein. The housing has an inlet port (414) in direct fluid communication with a chamber (418). The outlet port (416) is in direct fluid communication with a central standpipe (422). The standpipe has a flow element (442) movable therein for controlling the condition of flow openings (436) in the standpipe.

Abstract: A fuel filter comprises a head (96) having an inlet (100) and an outlet (102). The head is connection to an element (266) by a nipple portion (186) which has a valve element (196) therein. An actuating projection (222, 272) is engageable with said valve element to open flow through said nipple portion when the correct element is attached hereto. The actuating projection is further supported on a central portion (220, 276) which prevents connection to a nipple portion that extends too far into the element. According to a further embodiment, the filter includes a housing (412) with a removable element (424) mounted therein. The housing has an inlet port (414) in direct fluid communication with a chamber (418). The outlet port (416) is in direct fluid communication with a central standpipe (422). The standpipe has a flow element (442) movable therein for controlling the condition of flow openings (436) in the standpipe.

Abstract: A filter housing having a bracket for attaching the housing to a septic tank outlet port and adapted for fluid flow connection to an outlet port on the housing, contains a removable filter element having an outlet port connected to the outlet port on the housing and an opening in the lower end of the housing for delivering septic tank fluid to the filter, and includes a seal element buoyantly responsive closingly to fluid in a septic tank when the filter housing is mounted in a septic tank, operatively connected to the filter element for closing the open lower end of the filter housing and forming a temporary second filter at the lower open end when the filter element is removed from the filter housing.

Abstract: A filter for fuel and the like comprising an inner filter element and an outer metal filter can which allows the element and can to work together so that when the filter can is removed from the dispensing apparatus, the filter element springs closed and locks against the filter can so that no fuel is spilled. Additionally, the filter can grasps the filter element and pulls it from the dispensing apparatus.

Abstract: A filter device for a water filter includes a coupling device and a filter cartridge. A water inlet opening and a water outlet opening are formed on the coupling device. The coupling device has an inner casing with a reversed cone shaped through hole in the center. A valve member controlled by an elastic element is configured within the coupling device. The valve member, which includes a hollow rod with through holes formed on the side wall, completely blocks the cone shaped through hole if no filter cartridge is connected. When the filter cartridge is securely fastened to the coupling device, the elastic element is compressed so as to form a water inlet path from the water inlet opening through the coupling device, the valve member and the filter cartridge. A separate water outlet path from the filter cartridge through the coupling device to the water outlet opening provides filtered water ready for drinking.

Abstract: A system for supplying molten thermoplastic material to a dispenser comprises a hopper for storing the thermoplastic material. A heating grid is associated with the hopper for heating and melting the thermoplastic material. A reservoir block receives melted material from the grid. The reservoir block includes a reservoir into which the melted material flows from the grid. A manifold and pump assembly is connected to the reservoir block for receiving material from the manifold block and pumping the material to a dispenser. A valve and filter assembly is mounted in the reservoir block. The valve and filter assembly includes a valve member capable of moving between an open position and a closed position for blocking the flow the material through the reservoir block, and includes a filter member for filtering material, the filter being removable to clean the filter.

Abstract: A septic tank filter system comprises a mounting member adapted for attachment to an interior surface of a septic system tank, at least one open-ended, cylindrical filter housing fixed to the mounting member, and a hollow foraminated filter nested in each filter housing. The filter has a first conduit providing a fluid flow connection between the filter interior and an outlet port in the filter housing. Liquid sewage is filtered during passage from the outside of the filter to its interior. Filtrate flows through the first conduit, then through the filter housing outlet port, thence through the mounting member and finally exits the tank through the outlet pipe in the tank wall. A score line in the filter housing side wall permits ready removal of a section thereof to form an inlet port. Telescoping channel members on the outside of the filter housings allow them to be interconnected with the outlet port of one in fluid flow connection with the inlet port of another.

Abstract: A fuel filter assembly (10) includes a housing (12) with an internal chamber (14) and inlet and outlet (18, 22). The chamber is bounded by an annular wall (16) and has an opening (30) at an upper end thereof. An element (26) is accepted in the chamber. The element includes a manually engagable cap portion (28) for closing the opening, and a disk-shaped member (46). The disk-shaped member has a deformable lip portion (50) for engaging the annular wall, and for fluidly separating an aperture (24) in connection with the outlet fitting, from aperture (24) in connection with the outlet fitting, from an aperture (20) in fluid communication with the inlet fitting. A check valve (200) is also engaged by the lip portion to open a fluid path to the chamber when the filter element is located in the housing. A media body (54) of filter media (56) removes impurities from liquid flowing therethrough. Fuel flows from the inlet to the chamber and then through the media.

Abstract: A filter assembly including a filter housing having a standpipe extending upwardly therethrough, in which is located a spring-biased flow element, and about which is received a replaceable filter element. A screw threaded cover is removably attached to the housing. The filter element includes an upper endcap, a center tube, a lower endcap and cylindrical filter media around the center tube. The lower endcap includes a central opening which receives upwardly therethrough the standpipe in sealed relation. A separate actuator with a projection formed to extend therefrom is located in the center tube, either fixedly or movably, below the upper endcap. When the filter element is placed over the standpipe, and the cover attached to the housing, the projection on the actuator pushes down against the spring-biased flow element, putting cavities formed in the flow element and openings formed in the standpipe in fluid communication.

Abstract: A fluid routing system for use in a fluid line is set forth which includes a fluid routing mechanism having a housing and a block, and a removable treatment device. The housing has an internal chamber, an inlet port for attaching to one part of a fluid line, an outlet port for attaching to another part of the fluid line, an inlet channel connecting the inlet port to the internal chamber, and an outlet channel connecting the internal chamber to the outlet port. The block is capable of movement between a first and second position and is disposed within the internal chamber of the housing. The block has a first internal cavity, a second internal cavity, an exterior surface, an inlet passageway connecting the first internal cavity with the exterior surface, and an outlet passageway connecting the second internal cavity with the exterior surface. The inlet passageway and the outlet passageway are configured to retain fluid therein when the treatment device is removed.

Abstract: A water filter including a filter unit utilizing bag filters and including a hydraulic jack for displacing the bag filters between a lower operative position and an elevated position where the bags are readily accessible the jack preferably in the form of a pair of relatively extensible tubular telescopic members in a flow path between a pump delivery connection and the inlet to the filter bags with one of the members providing a flow communication from the member to the filter outlet. The filter also includes inlet means to the filter bag directing flow to wash the interior surface of the bags.

Abstract: A fuel filter assembly includes a housing (12) with a removable element (24) mounted therein. The housing has an inlet port (14) in direct fluid communication with a chamber (18). The outlet port (16) is in direct fluid communication with a central standpipe (22). The standpipe has a flow element (42) movable therein for controlling the condition of flow openings (36) in the standpipe. The element includes projections (88) for engaging recesses (90) in a cover (28) to selectively latch the element and cover together. The cover further includes a cover projection (82) for supporting a projection (78) on end cap (60) of the filter element, which opens flow into the standpipe only when the element is installed. When the element is removed, the flow element prevents the introduction of contaminants into the standpipe.

Abstract: A cartridge based water purification and filtration system which permits cartridge changes without drainage at the input and output ports. Interlocking flanges at the manifold and cartridge lock the cartridge to the manifold and raised surfaces at the cartridge operate the inlet valve with a rotational seating of the cartridge. A spring biased inlet valve depends from a supply manifold input port and cooperates with the filter cartridge to prevent forward flow until the cartridge is seated to the manifold. The check valve includes a split stem which prevents chatter with valve operation. A check valve at the output port cooperates with a sealed bayonet fitting that mates to a concentric outlet port at the cartridge to prevent back flow with cartridge removal.

Abstract: A body 1 is constructed by mounting a purifier cartridge 23 in a cold-water passage 7 and is equipped with a purified water handle 16 for opening and closing a branch passage leading from the cold-water passage 7 to the purifier cartridge 23. To this body, there is mounted a base 9 which includes a valve functioning part 11 for adjusting the mixing of cold water and hot water coming through the cold-water passage 7 and a hot-water passage 8, and the flow rates of the cold water, the hot water and the mixed water by operating a lever 15. A spout 10 spouts therefrom the cold water, the hot water, their mixed water adjusted by the valve functioning part 11, or the purified water. The purified water handle 16 and the valve functioning part 11 are provided separately, and hence they can be individually replaced when they fail.

Abstract: A fuel filter comprises of a adapter and a filter element within a can. The adapter provides a series of valves which are opened and closed by the attachment and detachment of the filter, thereby preventing spillage from the fuel pump when the filter is removed for replacement.

Abstract: An automatic valving unit for a pressure vessel that holds a cartridge, loose media, and the like for conditioning and/or purifying a fluid, comprises a valve head having a first passageway extending through it and being adapted to be connected to a fluid transmission line, an outlet port formed at an outlet end portion of the first passageway in the valve head, a first valve member positioned in the first passageway of the valve head for blocking flow of fluid through the first passageway of the valve head when the pressure vessel is not connected to the valve head, a fluid inlet member formed on the pressure vessel for providing a passageway for fluid into the pressure vessel, said fluid inlet member including a first valve actuating member for opening the first valve member when the pressure vessel is connected to the valve head, and connecting/disconnecting members formed on the outlet port of the valve head and on the fluid inlet member of the pressure vessel for connecting the pressure vessel to the val

Abstract: An apparatus for controlling and filtering the flow or viscous fluid in a material melting and dispensing device is disclosed. The apparatus includes a rotatable valve assembly having a filter plate and a flow stoppage plate. Rotation of the valve alternately allows or halts the flow of viscous fluid. The convenient ability to block the flow of viscous fluid such as hot melt adhesive at a point immediately downstream of a hopper or material melt space facilitates repair, maintenance, or removal of other downstream elements such as a pump without the need for draining the hopper, while avoiding excessive spillage of hot melt adhesive.

Abstract: A filter and pressure relief assembly for an adhesive supply unit comprises an adhesive supply hopper (12), a filter basket (20) disposed within a cavity (18) defined within a filter block (16), and a filter plug (22) for retaining the filter basket (20) within the filter block (16). Inlet port (32) provides an infeed of adhesive from the hopper (12), an outlet port (36) leads to an applicator, and a return port (54) and conduit (56) return adhesive back to the hopper (12). The filter plug (22) contains a pressure relief valve (44) which opens and connects the inlet port (32) to the return port (54) and conduit (56) so as to return adhesive to the hopper (12) under over-pressurized conditions, and a pair of O-ring members (100, 102) for respectively engaging small and large diameter regions (104, 106) of the cavity (18).

Abstract: A liquid purifying apparatus comprising; a cylindrical casing having a bottom and a tapered side wall which is formed so that an inner diameter of the cylindrical casing is made larger at an upper portion than a lower portion; a roll filter member inserted in the casing having fastening band arranged to surround the roll filter member and formed cylindrically so that the cylindrical fastening band having a diameter which is substantially equal at every portion along an axis thereof to the inner diameter of the casing at its lower portion; and a tapered gap defined between the casing and the roll filter member so that the gap is enlarged toward its upper portion.

Abstract: A fuel filter comprises a head (10, 96) having an inlet (14, 100) and an outlet (16,102). The head has a pumping portion (18, 104) which includes a vertically extending stepped bore (46, 120) having movable bodies (86, 88; 132, 140) therein. The fluid area between the bodies (54, 126) is connected to a variable volume area (77, 160). The head is connected to an element (98, 266) by a nipple portion (186) which has a valve element (196) therein. An actuating projection (222, 272) is engagable with said valve element to open flow through said nipple portion when the correct element is attached thereto. The failure of the nipple portion to sufficiently extend in the element, which occurs when an improper element is attached, prevents flow through the nipple portion and renders the filter inoperable. The actuating projection is further supported on a central portion (220, 276) which prevents connection to a nipple portion that extends too far into the element.

Abstract: A filter system for a liquid, which system has a base with an inlet for incoming unfiltered liquid and an outlet for outgoing filtered liquid and a filter subassembly having a filter unit and structure for removably maintaining the filter unit in an operative position on the base. There is a first lead-in port on the base in communication with the base inlet and a first lead-out port on the base in communication with the base outlet. There is a second lead-in port on the filter unit and a second lead-out port on the filter unit. The filter unit further has structure for filtering liquid communicating between the second lead-in port and the second lead-out port.