Abstract: IV filters are described herein. An IV filter includes a filter housing, a filter media, a filter channel, a priming channel, and a disk valve. The filter housing defines an inlet and an outlet. The filter media is disposed within the filter housing. The filter channel is disposed within the filter housing. The filter channel is in fluid communication with the inlet and the filter media, and the filter media permits flow from the filter channel to the outlet and captures particulate from the flow. The priming channel is disposed within the filter housing. The priming channel is in fluid communication with the inlet and the outlet. The disk valve is coupled to the filter housing. The disk valve is moveable to direct flow from the inlet to the priming channel in a first position and to direct flow from the inlet to the filter channel in a second position.

Abstract: Drip chambers, burettes and other IV set components are described herein. An IV set component described herein comprises a chamber body, an inlet portion, and a disk valve. The chamber body defines a chamber volume and an outlet. The chamber volume is in fluid communication with the outlet. The inlet portion is coupled to the chamber body, the inlet portion defining an inlet, a priming port, a drip port. The inlet is in fluid communication with the priming port and the drip port, and the priming port and the drip port are each in fluid communication with the chamber volume. The disk valve is coupled to the inlet portion. The disk valve is movable to direct flow from the inlet to the priming port in a first position and to direct flow from the inlet to the drip port in a second position.

Abstract: A filter assembly for allowing groundwater to flow through a hole in a seawall from a landward side of the seawall to a seaward side of the seawall includes a housing with a flange and a perforated shell. The filter assembly also includes a filter cartridge configured to be removably positioned inside the shell and a face plate positioned over the opening and removably connected to the seaward side of the flange thereby securing the filter cartridge inside the shell. The filter assembly also includes a valve member that is operable in an open state and in a closed state. The filter assembly also includes a deflection device connected to a seaward side of the face plate over the valve member. The deflection device is configured to prevent interference of the valve member.

Abstract: The fluidized bed processor of the present invention includes an internal filter assembly with a rack and a cartridge-type filter supported at the lower end by a bracket. The rack includes an elongated rod extending through the filter. An end cap is provided on the lower end of the rod for normal sealing engagement with the filter bracket. During normal operation of the processor, the upper and lower ends of the filter are sealed. During or after cleaning of the filter, the rack is lowered, and a spring separates the filter and support bracket from the end cap so as to create a gap for drainage of cleaning fluid.

Abstract: A head for a water filter system having a filter element including a three-way valve member movable between a first position, a second position, and a third position. When the valve member is in the first position, incoming water is directed to the filter element to remove sediment and impurities from the water. When the valve member is in the second position, the incoming water is blocked from passing through the filter element and the valve member. Lastly, when the valve member is in the third position, the incoming water passes through the valve member and not the filter element so that the filter element can be removed and replaced without interrupting the incoming water flow.

Abstract: An upper endcap of a fuel filter cartridge includes a skirt, an axially extending pin surrounded by the skirt, and a plurality of ribs that define fluid flow channels leading to the pin. The pin is extendable through an axially facing fuel inlet opening at the upper end of a standpipe for actuating a valve to an open position allowing fuel to flow through the axially facing inlet opening and into the standpipe. The valve can include a hole that receives the pin therein to help stabilize the valve when the valve is actuated open.

Abstract: A product is disclosed for inverted spray dispensing of material that comprises at least some particulate matter. The dispensing end of the container is connected to a valve, which includes a valve that moves from a biased closed position to an open position to discharge the product downward through the valve, when the dispensing end of the container is directed downward. An inlet end of the valve is spaced vertically above the dispensing end of the container when the dispensing end of the container is directed downward. The inlet end of the valve or spring cup is connected to a mesh filter having a pore size at least as large as an average diameter of the solid particles. Even when the container and a layer of settled particles forms at the dispensing end of the container, valve and mesh filter are designed so that at a portion of the proximal end of the mesh filter is disposed above the layer of settled particles to prevent clogging of the mesh filter.

Abstract: The filter device (10) is provided with a drain device (50) provided with a main body (51) and a plug (60). The main body (51) has a first opening (51a) which communicates to the outer side of a housing (20), a second opening (51b) which communicates with an inner side (42a) of a filter element (40), and a third opening (56) which communicates with a first channel (51c) communicating to the first opening (51a) and the second opening (51b) and a space (B) between the filter element (40) and the housing (20). The plug (60) is held within the first channel (51c), and is movable between a first position (P1) at which fluid is not discharged from the housing (20), and a second position (P2) at which fluid is discharged from the housing (20). The plug (60) is provided with a second channel (65) that communicates with the first channel (51c) and communicates with the outer side of the housing (20) when in the second position (P2).

Abstract: A one-way valve allows air to be drawn from a collapsible, flexible, air-tight bag using a vacuum source. When the vacuum source is removed, the one-way valve prevents air from re-entering the bag. A filter is placed on the valve body to prevent small particles from the bag from clogging the valve or the vacuum source.

Abstract: A diaphragm-type flush valve for use with toilet devices such as urinals and water closets includes a body having an inlet and an outlet. There is a valve seat between the inlet and outlet and a valve member movable to a closing position on the valve seat to control water flow through the flush valve. The valve member includes a diaphragm peripherally attached to the body and there is a pressure chamber above the diaphragm with water therein holding the valve member on said valve seat. An annular filter body is attached to the underside of the diaphragm at spaced locations thereon and there is a bypass orifice in the filter body positioned at one of the spaced locations. The filter body includes a plurality of peripherally spaced grooves and there is a filter ring mounted on the filter body and facing the grooves. The filter ring and grooves form a plurality of filter passages in communication with the bypass orifice and the flush valve inlet.

Abstract: The filter cartridge assembly has a valve body having an interior flow passage, a filter across the interior flow passage, and a check valve assembly in the valve body. The filter removes particulates as small as 0.003 microns. A check valve element adjacent to a valve seat in the interior flow passage has a check valve poppet and a stem. The check valve poppet has a relatively narrow neck, and the check valve poppet is tapered inwardly from the outlet end toward the neck at an oblique angle relative to the longitudinal axis of the valve body that is substantially equal to the oblique angle of the annular valve seat.

Abstract: A filter includes a housing having an inlet and an outlet. A filter core including a filter media is movably disposed within the housing with the inlet and the outlet in fluid communication with opposite sides of the core and a pressure responsive surface in fluid communication with said inlet. The filter also includes a valve supported on the filter core and moveable into a sealing position to prevent fluid from passing to the outlet when said core moves within said housing response to fluid pressure acting against said pressure responsive surface.

Abstract: A diaphragm type of flush valve for use with toilet devices such as urinals and water closets includes a body with an inlet and an outlet and there is a valve seat therebetween and a valve member movable to a closing position on the valve seat. The valve member includes a diaphragm which is peripherally attached to the body. There is a pressure chamber above the diaphragm for holding the valve member on its valve seat and there is a filter and a bypass orifice connecting the inlet and the pressure chamber. The filter includes a filter ring positioned beneath the diaphragm and adjacent the outer periphery thereof. The filter ring and the diaphragm are held in a fixed position relative to each other. The filter ring has a plurality of outwardly directed circumferentially spaced filter grooves. There is a seal ring between the filter ring and the body and facing the grooves.

Abstract: A shut-off valve for a spin-on filter includes a generally cylindrical outer housing which has an open top surface and an annular spring channel formed in that top surface for receipt of a coil spring. The spring is positioned so as to act on a valve actuator and gasket combination which are moveable relative to a valve seat for opening and closing the shut-off valve. In the normally closed condition the spring exerts a spring biasing force on the upper portion of the valve actuator which pushes it against the gasket and pushes the gasket against the outer sealing ridge of the valve seat. In this condition any liquid flowing into the top center opening of the housing will not be allowed to pass through the lowered centered opening of the valve seat. However, when the spin-on filter which includes the shut-off valve is spun onto a mounting base a stem on that mounting base pushes upwardly on the valve actuator compressing the spring and creating a liquid flow path between the gasket and the valve seat.

Abstract: A shut-off valve for use in a filtration system with a filter element having a tubular coupling member at one end arranged so that when the filter is installed in the system the coupling element extends into a tubular housing to displace a spool to thereby permit flow through the filter element, the spool being returned by a compression spring to a closed position within the housing to shut off flow when the filter element is removed, the tubular housing having a pair of spaced apart internal sealing faces and the spool having a matching pair of spaced apart sealing surfaces that close against each other when the spool is in the closed position to thereby prevent flow through the valve. The valve is arranged in such a way that when in the closed position fluid pressure applied to the valve exerts force on the spool to urge it more tightly into the closed position.

Abstract: A reusable liquid filter assembly having a housing having two internally threaded ends and two externally threaded removable end walls. Sealing O-rings are provided on the end walls to bear and seal against bevelled zones on the housing ends. A filter subassembly is positioned in the housing and centered therein by the end walls. A port is provided in one end wall for sampling the filtered liquid. The liquid filter is readily disassembled for cleaning and replacement of all of its components.

Abstract: A scraper filter system, which comprises a screw-formed spiral impeller within a cylindrical filter element, and scraper means formed along the spiral end of the impeller for engagement with the internal surface of the filter element for scrapingly removing solid components deposited on the surface of the filter element.Further the present invention provides a filter system, which comprises a cylindrical filter element, a cylindrical casing allowing liquid components to flow from the inside to the outside through the filter element, a spiral impeller with the scraper means for engagement with the internal surface of the filter element for removing solid components, and further comprises a feed liquid inlet at one end of the cylindrical casing and filter cake discharge means including a cake discharge outlet at the outlet end of the casing.

Abstract: An improved reverse osmosis unit is provided for use in a water purification system, wherein the reverse osmosis unit includes an integral control valve for regulating water inflow in response to system demand for purified water. The reverse osmosis unit includes a feed water inlet receiving a supply of ordinary tap water or the like for flow through a reverse osmosis cartridge having a membrane for separating the water inflow into a relatively pure water supply and a reject water supply with impurities concentrated therein. The pure water supply is coupled through a pure outlet port for collection within an appropriate storage vessel to await dispensing through a faucet valve or the like, whereas the reject water supply flows through a reject outlet port for discharge to a drain.

Abstract: A reaction mixture handling device comprises a chamber for containing a reaction mixture having an open upper end for introduction of the mixture or components thereof, and an outlet at its lower end. Below the inlet a body of filter material is located together with reaction mixture retaining structure for retaining the reaction mixture in the chamber and which is rendered inoperative on application of a positive pressure to the chamber or a negative pressure to the underside of the filter material. The reaction mixture retaining structure may comprise an impermeable or hydrophobic member which is positioned between the outlet and the filter material and closes the outlet, part of the filter material which is made impermeable or hydrophobic and closes the outlet, or an openable member located beneath the filter material. Application of the differential pressure either causes the filter material to move away from the outlet to open the outlet, or opens the member to permit liquid to flow.

Abstract: A reusable liquid filter assembly, such as an oil filter, is provided comprising a housing with inlet and outlet ports, filter means removably mounted inside the housing, means for holding the filter means inside the housing having tapered lengthwise slots for increased liquid flow, bypass valve means for providing a passageway between the inlet and outlet ports when the liquid pressure exceeds a predetermined value, means for alternately sealing and opening the housing to remove or insert the filter means, and a plurality of gasket means for permitting the filter assembly to be cooperable with a plurality of engines. An internally threaded nipple is also provided for insertion into the outlet port for changing the size thereof to permit use on a plurality of engines.

Abstract: An improved valve-strainer body or housing is disclosed wherein a single structure is adapted for use as both a valve housing for globe valves, gate valves, check valves and the like, and also utilized as a casing for a strainer. The housing is sized such that the single housing may be utilized in differing sized pipeline systems from approximately 1/4 inch IPS to 1 inch IPS. The invention also discloses superior means of using the valve body casing in connection with not only threaded pipe systems, but also brazed pipe systems and welded pipe systems. Finally, improvements in the valve assembly structure is also disclosed.

Abstract: A noise attenuating filter for use in a fluid flow systems which includes a cylindrical body defining a plurality of arcuate open-ended passageways extending longitudinally therethrough, a corresponding plurality of small radial slots in one end thereof communicating with the passageways and a closing member biased outwardly from the slotted end of the cylindrical body so that during use, fluid flows about the closing member and into and through the arcuate passageways until such time as the fluid pressure on the closing member causes the closing member to cover the upstream end of the annular passageways whereupon the fluid is caused to travel into the passageways through the smaller radial slots thereby reducing the volume of flow through the system and attenuating the noise of the fluid flow while additionally preventing the passage of large particles through the system.

Abstract: A filter for high pressure, high viscosity fluids, such as thermoplastic melts, in which a filter channel contains a valve with a stem equal to the largest diameter of the valve seat.

Abstract: An improved extracorporeal circuit blood filter of the type using filter media in the form of a cartridge wherein the improvement comprises an internal bypass directly through the cartridge. The bypass is actuated should the filter media become blocked.

Abstract: A control unit is formed of a housing containing a filter with an inlet and outlet in line above the filter, the latter forming a channel with the housing; a pressure reducer is positioned between the inlet and the outlet above the filter. A rotary valve positioned between the filter and the pressure reducer reverses the flow in the unit. A plug-valve is located in the housing to provide drainage and the plug-valve is connected to the rotary valve so that on reversal of flow, the plug-valve opens to drain the unit.

Abstract: A system for filtering hydraulic fluid wherein a high flow rate of uncontaminated fluid is required. A filling facility is provided for initial filling or for the addition of make-up fluid to the system which facility assures that such added fluid must pass through a filtration unit prior to integration with fluid already in the system. A by-pass valve is provided to provide pressure relief in the event that the filtration unit becomes clogged during use. The valve, along with an accompanying coarse filtration unit, are readily manually removable from the system for cleaning or repair.