Abstract: A hand-held shower head capable of measuring and suggesting replacement of filtering core handle includes a lower shell, an upper shell, a battery mount, a signal circuit device and a water flow measuring unit containing an impeller shaft, a magnetic element and a supporter. The water flow measuring unit and impeller shaft are disposed in a lower handle filter cartridge mounting section of the lower shell while the battery mount and a battery contained therein are disposed in an upper handle filter cartridge mounting section of the upper shell, and both the lower and upper handle filter cartridge mounting sections abut the handle filter cartridge to provide an even overall weight distribution.

Abstract: According to an embodiment of the present invention, a tea infuser comprises a hollow body substantially shaped as a truncated cone. The body includes an upper part having an internal thread. A container is threaded into the body through the upper part. A lower part has an external thread. A filter is disposed in the body. The filter has a jaw along an outer circumferential surface thereof. A first cap covers the upper part. A second cap is threaded to the lower part.

Abstract: A water filtering device includes a filter element and telescopically interconnected inner and outer cylinder units. Each of the inner and outer cylinder units has an open inner end and a closed outer end. A first space is formed in the inner cylinder unit. The filter element is disposed within the inner cylinder unit, and is adjacent to the inner end of the inner cylinder unit so as to define a second space between the filter element and the outer cylinder unit. The outer cylinder unit is movable on the inner cylinder unit, such that the outer ends of the inner and outer cylinder units are moved toward each other, thereby forcing water to flow from the second space into the first space through the filter element.

Abstract: A test tube insert includes a flange having a width greater than a width of a mouth of a larger test tube into which the insert is to be inserted. The flange defines a first central opening. An annulus extends integrally downward from the flange. The annulus includes a fenestrated wall and a floor defining a second central opening. A small test tube body, smaller than the larger test tube, extends integrally downward from the floor of the annulus with the second central opening forming a mouth of the small test tube body. The test tube insert is disposed in the mouth of the larger test tube. Fluid is transferred through the central opening and the fluid fills the small test tube body of the test tube insert and flows through the fenestrated wall once the small test tube body is full into the larger test tube.

Abstract: A liquid vacuuming and filtering device may include a container having a sealed interior, a vacuum pump connected to the interior, a two-way valve connected to the interior, a flexible hose connected to the valve, a filter positioned within the interior and connected to the valve and a standpipe positioned within the interior and connected to the valve. The pump may be adjusted to a filling configuration, in which the pump evacuates the container interior to a pressure below ambient, causing fluid to be drawn through the hose, valve, and filter, which collects suspended particulates; or to a discharge configuration, in which the pump pressurizes the interior to a pressure above ambient, wherein the valve is adjusted to allow filtered fluid within the container to flow through the standpipe, valve and out through the hose.

Abstract: The invention describes an apparatus for the filtration of liquids and an associated filter cartridge 100, wherein the quantitative flow through the filter cartridge can be reduced and set in a simple way. The apparatus is characterized in that at least one throttling device 200, 200? is arranged between the outlet opening 113 of the filter cartridge 100 and the outflow opening 17 of the receiving chamber 14.

Abstract: A filter cup assembly includes a first cup having a one-way valve connected to a center of the underside of the first cup 10 and a filtering part is connected to the underside of the first cup. An adaptor is connected between the filtering part and a second cup. A presser includes a pressing plate connected with a rod, the pressing plate is inserted into the first cup to force contaminated water in the first cup to pass through the one-way valve, the filtering part and is collected in the second cup. All of the parts are threadedly connected to each other so that they can be separated individually. The first cup is sized to receive the second cup, the filtering part and the adaptor when not in use.

Abstract: A liquid vacuuming and filtering device may include a container having an interior sealed from the ambient, a vacuum pump in communication with the interior, a two-way valve connected to the container interior, a flexible hose connected to the valve, a filter positioned within the container interior and connected to the valve and a standpipe positioned within the interior and connected to the valve. The vacuum pump may be adjusted to a filling configuration in which the pump evacuates the container interior to a pressure below ambient, which causes fluid to be drawn through the hose, valve and through the filter, which may collect particulates that contaminate the fluid. Filtered fluid then collects within the container.

Abstract: According to various aspects, exemplary embodiments are provided of valve apparatus and combination filter valve assemblies. One exemplary embodiment provides a combination filter valve apparatus suitable for filtering objectionable particulate matter from a fluid and for selectively occluding a fluid flow opening. In this exemplary embodiment, the apparatus generally includes an outer member, a sealing member, and filtration media disposed generally between the outer member and the sealing member. The filtration media may be configured to generally support the sealing member for resilient movement relative to a fluid flow opening between open and closed positions. In the open position, the sealing member may be spaced apart from the fluid flow opening. In the closed position, the sealing member may be in sealing engagement with and substantially blocking the fluid flow opening, thereby inhibiting the ingress of fluid into or egress of fluid out of the fluid flow opening.

Abstract: A hydration pack (10) includes a bladder (11) attached to a pump (12) via a feed tube (13) and to a bite valve mouthpiece (14) via a drinking tube (15). The bladder (11) incorporates a filter cartridge (16) which is capable of ultra-filtration and thereby effective to remove viruses as well as bacteria from water. The filter cartridge (16) is coupled to the drinking tube (15) such that any water that passes from the bladder (11) to the mouthpiece (14) must pass through the filter cartridge (16). The pump (12) is able to act both to transfer water into the bladder and also to pressurize the bladder with air.

Abstract: A blood filter system used for the sequential filtering of blood while actively removing air bubbles and debris comprising a filter housing with unique conical, or cylindrical shape, a flared inlet port, a unique up and down blood flow path, a multi-stage sequential filter assembly, an active air purge assembly and a unique downspout assembly with outlet port. The filter housing is adapted so that blood passes from the inlet port through the multi-stage sequential filter assembly to the outlet port following an up and down flow path, while its unique shape and angled filters effectively direct any air bubbles and debris up and out of the blood stream toward the active air purge assembly where they are removed.

Abstract: An improved residential countertop water treatment unit for producing potable water suitable for human ingestion such as by drinking or cooking that comprises a vertical arrangement of a base, a cartridge, and a spigot at the top. The base includes an elongated threaded stub pipe extended downward for fastening the base to a sink surface or countertop and for receiving water from a potable cold water supply line. The base includes an internal valve for controlling water flow between the elongated threaded stub pipe and the inlet of the water filter cartridge. With the valve closed, the cartridge may be readily exchanged by simply unscrewing the spent cartridge from the base and then screwing in a new cartridge.

Abstract: Various embodiments of an end-of-faucet filter assembly connectable with a faucet on a standard sink and having a plurality of outlets corresponding with selectable modes of operation are disclosed herein. One mode of operation provides unfiltered, aerated water dispensed from the filter assembly. A second mode of operation provides a pulsing jet spray, while a third mode of operation provides filtered water. One embodiment of the present invention also includes a connection assembly between the end-of-faucet filter and the faucet that utilizes a water-tight radial seal that allows the end-of-faucet filter to swing or rotate back and forth relative to the faucet without impairing the integrity of the seal. Other embodiments of the present invention also include a filter cartridge assembly configured to provide a user with an easy method of removing and installing the cartridge.

Abstract: A filtration assembly for filtering polymer fluids at varying flow rates includes at least two filter housing assemblies releasably attached to a filter support or main block. Polymer fluid is delivered to the filter housing assemblies via an inlet passage in the main block, and filtered polymer fluid is transported from the filter housing assemblies to an outlet passage in the main block. One end of each filter housing assembly is attached to the main block and includes an inlet port for receiving polymer fluid from the inlet passage and an outlet port for delivering filtered polymer fluid to the outlet passage. A single valve disposed on the main block selectively alternates fluid flow between the main block and each filter housing assembly.

Abstract: A filter facility includes a filter device received in a container and having a housing for receiving a number of filter particles. The housing includes a peripheral partition extended into the chamber from a bottom panel, and a plate disposed on top of the peripheral partition to form a compartment within the peripheral partition and the plate, and to form a peripheral space between the peripheral partition and a peripheral wall of the housing. The housing includes a number of apertures formed in the peripheral wall and the peripheral partition and the plate to increase a flowing area of the fluid through the housing.

Abstract: A filter external to a tank including a vessel, a lid for closing the vessel, a removable connector including means of fixing the connector to the lid, a pipe for conveying water from the tank, a pipe for returning water to the tank, and couplings for connecting the two pipes to the connector, each coupling being equipped with a valve which selectively allows or prevents the passage of water, the connocter including a single means for allowing simultaneous actuations of the valves and actuation of the means of fixing the connector to the lid.

Abstract: A water purifying cartridge, attached to an empty polyethylene terephthalate or PET bottle integrally formed with a seat member, including: a flange member having substantially the same diameter as an outer shape of a spout of the bottle and a thickness portion screwed to water-tightly fit an inner portion of a screw cap of the bottle; a water charging/discharging mouth portion opened to a substantially central portion of the flange member; a hollow neck portion inserted inside of the spout of the bottle adjacent to the flange member and having projected portions; a filter portion under the neck portion; an extractable/contractable adjusting portion adjacent to the filter portion; a cylindrical portion adjacent to the adjusting portion; and a water purifying portion having an outer periphery with clearances for passing water therethrough. The adjusting portion, the cylindrical portion and the water purifying portion all containing water purifying agents.

Abstract: An apparatus for making drinks such as filtered water, coffee, espresso or tea which comprise a cold water filter system for purifying water for either direct consumption or use in extracting flavor-containing materials like coffee and a hot water filter assembly located on the brew head for removing impurities originated from both water itself and the parts of the apparatus in contact with water. The cold water filter system comprises a removable water container having at its bottom a water passageway, a filter cartridge removably mounted in the water passageway, a containing chamber for receiving the filtered water, and a valve in the water passageway for closing the passageway when the container is removed from and opening the passageway when placed onto the containing chamber.

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 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: The small filter comprises a housing (1) and a grip (2). A pump (6, 7, 8) can be operated with the grip. Disposed concentrically around the pump are an activated charcoal filter (3) and a ceramic filter (4). The grip is substantially beaker-shaped with convex front wall (11) and cylindrical lateral walls (14). In its rest position, it enclosed the upper end of the housing, such that the small filter is very compact while the grip still has large gripping or seating surfaces for the fingers and the ball of the thumb.

Abstract: An under counter dish washing machine has an upper spray assembly with a spray base recessed at the top of the wash compartment. An enclosed control housing is provided around the recess to house various controls in order to make use of what is otherwise wasted space. The sump of the machine is covered by a screen having an opening in which a pump filter moves up and down to open and close the drain opening. The filter has a perforated body so that all water draining to the sump must pass through either the screen openings or the perforations of the pump filter. The supply hose which delivers water to the machine is relieved from constant water pressure by a solenoid valve which closes except during a fill cycle of the machine.

Abstract: A drinking container includes a flexible, hollow body having a neck. There is closure member removably connected to the neck. There is a spout on the closure member. A filter device is operatively connected to the spout within the body. The filter device includes a filter, a passageway bypassing the filter and a movable valve member in the passageway which opens the passageway when the container is in upright position when the spout is on top. The valve member blocks the passageway when the container is inverted from the upright position or pressurized.

Abstract: A colander like receptacle mounted over a portable liquid storage container. The container has a drain valve and may have casters to permit its rolling. Interlocking male fins in the receptacle engage slots in the container and are locked together by turning the receptacle relative to the container. A male retaining slot in the container adjacent the slot can lock the container and receptacle together when turned. After, the items such as dishes, glassware or other kitchen items, are placed in the receptacle are drained of their liquids, the drained liquids are stored in the container until sufficiently full. These stored liquids may be drained off to permit the containers reuse.

Abstract: A brewing pot for tea includes a container including an upper portion having a top rim defining at least one cavity, and a lower portion defining a chamber, and an abutting edge formed between the upper portion and the lower portion. A supporting base supported on the abutting edge includes an upright post. A cylindrical body is slidably mounted on the supporting base and includes a top portion formed with an annular flange and a bottom portion defining a socket. At least one block is formed on the annular flange and abuts on the top rim of the container, and a control ball is received in the socket. The cylindrical body and the supporting base can be rotated relative to the container to a position where the block is received in the cavity such that the body can be moved downward relative to the supporting base while the control ball can be moved toward the post such that the control ball can be urged by the post to rise from the socket.

Abstract: A tea maker structure is disclosed. It includes a percolator cup as an upper layer of the tea maker and a tea cup as a lower layer of the tea maker. A bottom of the percolator cup is formed with a water outlet communicating with the tea cup. A filter mesh is disposed above the water outlet to prevent tea grounds from blocking the water outlet. The opening/closing of the water outlet is controlled by a controlling mechanism coaxially disposed in the percolator cup, whereby the tea can flow into the tea cup with the tea grounds remaining in the percolator cup. Also, this tea maker is prevented from falling down due to improper application.

Abstract: A filtration system comprising a housing whose overall surface, excepting a bottom surface and an upper surface, is tightly closed, a filter medium disposed within the housing, an air jetting portion disposed within the housing at a higher location than the filter medium, and a propeller fan disposed at an upper portion of the housing and rotated by air which is jetted from the air jetting portion.

Abstract: A water filter including an inlet assembly which comprises a prefiltering foam tip. The inlet hose includes an adjustable float and a weight on the end of the hose which allows a given length at the end of the inlet hose to extend below the surface of the water being filtered. The water filter further includes a check valve assembly to relieve pressure buildup inside the pump. A unique lever-action handle, in combination with a rocking piston, allows efficient filtering with few moving parts. The filter components are easily replaceable. The main filter assembly is suspended resiliently at its periphery to provide shock-absorbing characteristics. The filter also includes an adaptor base which allows for a direct connect between the vessel into which water is filter. The water filter also provides a unique method of storing the inlet hose to render the water filter easy to carry and prevent foreign objects and debris from entering into the area of working parts.

Abstract: A water filter including an inlet assembly which comprises a prefiltering foam tip. The inlet hose includes an adjustable float and a weight on the end of the hose which allows a given length at the end of the inlet hose to extend below the surface of the water being filtered. The water filter further includes a check valve assembly to relieve pressure buildup inside the pump. A unique lever-action handle, in combination with a rocking piston, allows efficient filtering with few moving parts. The filter components are easily replaceable. The main filter assembly is suspended resiliently at its periphery to provide shock-absorbing characteristics. The filter also includes an adaptor base which allows for a direct connect between the vessel into which water is filter. The water filter also provides a unique method of storing the inlet hose to render the water filter easy to carry and prevent foreign objects and debris from entering into the area of working parts.

Abstract: Apparatus for quickly taking and filtering liquid taken from a body of liquid comprises a bailer for taking and containing a sample of the liquid therein. The bailer has an upper end portion adapted for quickly disconnecting and connecting a liquid pressurizing device including a hand operated fluid pump or regulated tank of compressed gas. A lower end portion of the bailer is provided with a ball or poppet check valve controlling the flow of liquid to and from the bailer by way of an internal opening adapted for quickly connecting and disconnecting a filtering unit to and from the bailer. The filtering unit has a disposable filter element inside of a housing attached to an upper adapter with a liquid passage therein quickly inserted into sealing engagement with the internal opening of the bailer and which opens the ball check valve. A lower end of the filter housing is connected by another adapter into which a flow control valve is quickly connected to and disconnectable from.

Abstract: The present invention relates to a method for filtering liquids. More particularly it is concerned with providing a clog-resistant filter of the kind in which a open end and with walls of metal, plastic or other suitable material bearing numerous perforations, is placed within a housing in such a manner that the liquid entering the housing must flow from the inside of the filter element out through the perforations in the latter, before it can leave the housing, with the result that solid material strained from the liquid flowing through the filter is retained within the filter element.

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: This invention provides a sterilizing water-purifying reagent for removing muddiness of water to be treated or sterilizing the water to be treated as drinking water in fields or under drinking water shortage environment, and the sterilizing water-purifying reagent comprises an acidic additive containing as main ingredients various types of metal salts and nonmetal salts produced by dissolving vermiculite weathered from mica mineral or soil further weathered from the vermiculite in aqueous inorganic acid solution.

Abstract: The present invention relates to a filter for liquids. More particularly it is concerned with providing a clog-resistant filter of the kind in which a filter element (usually of hollow cylindrical shape), having at least one open end and with walls of metal, plastic or other suitable material bearing numerous perforations, is placed within a housing in such a manner that the liquid entering the housing must flow from the inside of the filter element out through the perforations in the latter, before it can leave the housing, with the result that solid material strained from the liquid flowing through the filter is retained within the filter element.

Abstract: A device for the production of ultrapure water comprising tubes containing water treatment elements joined by two end plates. Grids are disposed between the tubes and the end plates to retain resin or carbon particles. Connector terminations provide a hydraulic connection between a control unit and the tubes. The filter is mounted in the tubes by means of an adapter which also provides a seal between inlet and outlet sides of the filter. Holes are provided in the connector terminations and the end plates to enable selection of the path of fluid in the water treatment elements.

Abstract: A valve-in-head filter includes an outer housing (2) adapted to receive a fluid filter cartridge (4) therein. A valve head (7) is provided which includes an annular stand pipe (22) for locating an end of the filter. The stand pipe is cut away (32) on its downstream side to reduce fluid back pressure. Furthermore, a passage (13) is disposed between the head inlet (11) and outlet (12), with the passage receiving a slidable plunger (23) therein. A manually actuatable handle (28) connects through a rotary actuator (29) to move the plunger. The actuator includes a stem (30) mounted eccentrically to the handle axis, with the stem received in a recess (31) in the plunger so that turning of the handle moves the plunger between "on" and "off" positions. The plunger includes a seal (26) which continuously engages the passage wall in all plunger positions, and the construction provides full "on" and "off", with no fluid bypass in the "off" position.

Abstract: A filtering screen is described comprising: a first filter mesh, a second filter mesh having a different mesh size from the first and overlying the first mesh, and an apertured support to which both of the meshes are bonded so as to maintain the two meshes in tension, the tension in one of the meshes being greater than that in the other. At least one other filter mesh may be bonded over the first two meshes. The support may comprise a plate of fiber reinforced material having apertures formed therein which are much greater in area than the openings in the filter mesh, or a sheet of metal in which apertures are formed and in which edge regions of each aperture are turned through approximately 90.degree. to extend normal to the plane of the sheet from the underside thereof to increase the rigidity of the sheet. The frame may alternatively be a honeycomb structure or an apertured metallic plate, the filter meshes being joined to the surface of the frame.

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: A water purification device has first and second like hollow elongated members adapted for detachable engagement with each other, and when engaged defining an elongated housing having a cylindrically shaped central section and opposite ends with small openings. A cylindrically shaped filter is disposed removably in said central section. The filter ends are disposed transversely to an axial bore in the filter. A first mechanism detachably securable to a water faucet pivotably secures one housing end to the faucet and conducts water from the port into the housing. A thin flat annularly shaped disposable fiber prefilter removably overlies the end of the filter adjacent said one housing end. A second mechanism connected between said first mechanism and the bore has a first position at which the conducted water flows through the device unfiltered and has a second position at which the water is filtered.

Abstract: A filter assembly having bypass valves to allow continued liquid flow during the removal and reinsertion of a new filter. The assembly includes a cylindrical filter housing threadedly mounted to a valve housing with a cylindrical filter removably mounted within the filter housing. The valve housing has an inlet connectable to a source of liquid. A first valve is rotatable from a filter position directing all liquid flow from the inlet to the filter to a bypass position directing all liquid flow from the inlet to the outlet of the assembly. A shut off valve prevents liquid flow into the filter when the first valve is in the bypass position.

Abstract: A separator for immiscible, emotionless-forming liquids having different specific gravities which comprises a container and a valve arrangement provided in the lower end of the vessel for movement between open and closed conditions whereby through disposition in the container, the heavier liquid may be discharged from the separator, the lighter liquid being retained therein. The valve configuration is such as to greatly facilitate its disassembly in cleaning as well as economic manufacture.

Abstract: Apparatus for separating or classifying the contents of a flowing slurry comprising a descending flow surface having a low profile and associated therewith a relatively low head box, the latter of which is distinguished by a relatively restricted cross sectional area adjacent its top. The flow surface is characterized by screen sections successive of which differ in orientation and profile whereby to produce a compact structure having a high capacity for separation of liquid from a flowing slurry. The design of the head box is such to enable a fast and effective delivery of slurry in spite of the low head provided.