Abstract: This invention relates to a pressure balancer to associate with a mixer valve, comprising a balancer body which defines a chamber and a piston in said chamber. The chamber has a middle section between two side sections, where the middle section has a larger diameter than the side sections. The piston has an intermediate flange joined at opposite ends to two side flanges, where the intermediate flange has an external diameter compatible with that of the middle section of the chamber and features a peripheral seal on the inner surface of the middle section, and the side flanges each has a diameter corresponding to that of the side sections of chamber.

Abstract: A single control roman tub faucet (10) comprises a handle, a lever coupled to the handle, and a cartridge valve (12) coupled to the lever. The valve (12) is configured to provide a maximum flow rate of at least 7.8 GPM. The cartridge valve (12) has a valve base (32) and a lower disk (18). The valve base (32) includes an upper surface (58) and a lower surface (68) and a water passage extending between the upper and lower surfaces. The outlet end of the passage has a larger cross-sectional area than the inlet end. The lower disk (18) includes an inlet sized to match the outlet end of the passage. The cross section of the passage is generally arcuate and is defined by parallel side walls (74, 75) and non-parallel end walls (76, 77).

Abstract: A directional-control valve is connectable to a first main pipe and to a secondary pipe. The valve includes an upstream port and a downstream port connectable to the first main pipe and having identical diameters. A third connection port is connectable to the secondary pipe. A shut-off member is capable of moving at right angles to the main pipe between a closed position and a second open position. In the closed position, the shut-off member includes a first orifice, of a diameter identical to that of the upstream port and downstream port, positioned in line with the upstream port and the downstream port.

Abstract: For use in a shower installation, a mixer assembly with variable flow control insertable into a wall to have, when installed, a “front of wall” outlet for mixed water and a “front of wall” single control of both mix and flow to issue from said outlet, and an “in wall and/or back of wall” separate intake for hot and cold water. Preferably the assembly provides in use from the mixer assembly outlet a water flow via a flexible conduit to a shower head outlet. Such flow is controlled both as to water temperature and flow volume reliant upon single lever actuation of a rotor within the mixer assembly (preferably with a venturi draw in feature for that water feed of lesser pressure).

Abstract: A plate (9, 10) made of hard material, having at least one flat surface machined by means of lapping and intended to be used as a member to control the flow in a hydraulic equipment unit, that consists of a thermosetting synthetic polymer, is made by means of molding and has in the regions different from its flat surface configurations suitable for cooperating directly with some specific members of a hydraulic equipment unit. The thermosetting synthetic polymer can be mixed with a solid lubricant. When the plate is a fixed plate, it presents the characteristic configurations of a bottom member that is directly connected to the cage (1) of a cartridge, whereas when the plate is a movable plate, it presents the characteristic configurations of a slide that cooperates directly with guide members and with members for operating the cartridge.

Abstract: A rotary valve for directing fluid streams which has a circular stationary head having at least one and desirably multiple primary ports for connection with fluid streams at least one secondary port. The stationary head includes a number of first circular concentric channels formed therein and at least one second concentric channel. The first and second channels are associated with the primary and secondary ports, respectively. A rotatable head is provided having radial chambers, each having a first and second port for connection between a first channel and a secondary port. The rotatable head rotates against the stationary head and channels in a fluid sealed manner. An indexable drive rotates the rotatable head to interconnect predetermined primary channels and secondary ports. The timing of rotation can be continuous or intermittent depending upon the associated process of the fluid streams.

Abstract: The present invention relates to a rotary valve assembly for a pressure swing adsorption system. The rotary valve assembly includes a first valve member and a second valve member relatively rotatable about a common center of rotation to provide valving action for selectively transferring fluids therethrough. The second valve member has a first fluid section with at least one aperture adapted for transferring a first fluid of a first pressure and composition therethrough and a second fluid section with at least one aperture adapted for transferring a second fluid of a second pressure and composition therethrough. The first valve member has a first fluid section with at least one passage for transferring the first fluid in the valve assembly and a second fluid section with at least one passage for transferring the second fluid in the valve assembly.

Abstract: A water control valve device includes a housing having one or more inlet orifices and greater openings for receiving water, and one or more check valves each having an inner casing engaged into the inlet orifice of the housing and an outer peripheral flange engaged in the opening of the housing, and each having a port for receiving water. The check valve includes one or more inclined surfaces for forming a closable and openable mouth which is openable when water flows into the casing and which may be closed for preventing the water from flowing out of the housing.

Abstract: A water control valve device includes a housing having a cap and a receptacle member fixable together. The cap includes one or more inlet orifices and greater openings for receiving water, and one or more check valves each has an inner casing engaged into the orifice and an outer peripheral flange engaged in the opening of the housing, and each having a port for receiving water. The check valve includes one or more inclined surfaces for forming a closable mouth which is openable when water flows into the casing and which may be closed for blocking water.

Abstract: A rotational limit stop comprising a substantially circular disc having an upper surface, a lower surface and a perimeter surface, the perimeter surface containing a plurality of teeth on one portion thereof, a central aperture passing through the center of the circular disc, and a plurality of resilient spring legs extending downwards from the lower surface of the disc, such that the resilient spring legs of the rotational limit stop flex to accommodate the compression forces as a faucet assembly containing the rotational limit stop is being assembled.

Abstract: The present finding relates to a tap for single hole kitchen sinks comprising a top body (11) from which a water outlet (17) extends, arranged and turning on a bottom fixed and hollow body (12), wherein the water adjustment and mixing cartridge (16) is housed into a seat (15) obtained into the top turning body (11) at said water outlet and wherein the top body is integral with a union sleeve (21) inserted and rotating into the bottom fixed body.

Abstract: A system is disclosed for communication from an instrument disposed in a wellbore. The system includes a flow diverter selectively operable to conduct fluid flow between a first path along the interior of a housing and a second path along the interior of the housing. The system includes an initiator operatively coupled to the flow diverter to cause selective operation thereof in response to an event.

Abstract: In a rotary servo valve (1) provided with at least two kinds of pump port (33, 39) for high and low pressures, a spool (11) that is free to rotate and free to reciprocate linearly is installed into a spool guide hole (7) of the valve main body (9), a servo motor (15) that rotates and drives the spool and a linear type actuator (13) that reciprocatedly travels are disposed, and the pump ports are selectively changed over by the reciprocation of the spool, and cylinder ports are selectively changed over by the rotation and at the same time the flow rate is controlled.

Abstract: A bypass valve for directing fluid flow, where the bypass valve includes a valve body with a notch in at least one end thereof and a spool seated within the valve body. The spool is rotatable within the valve body. One preferred embodiment of the present invention also includes at least one endcap attached to an axial end portion of the spool, where the endcap includes a protrusion extending thereon for preventing relative rotation between the spool and the valve body when the protrusion is positioned within the notch. A further aspect of the present invention relates to a bypass valve with a valve body including a plurality of ports and a generally cylindrical inner periphery, as well as a spool seated within the valve body, where the spool is rotatable and axially translatable within the valve body.

Abstract: A valve cartridge for controlling the flow of fluid between a fluid source and a fluid outlet has a valve body with a rotatable ceramic disk and fixed ceramic disk. A biasing element is disposed between the rotatable ceramic disk and the valve body for biasing the rotatable ceramic disk against the fixed ceramic disk. The fixed ceramic disk is additionally secured against the valve body to retain it independently of the biasing element, thus effectively removing the fixed ceramic disk from the stack up.

Abstract: A ceramic valve in combination with a connection mount is provided. The ceramic valve has a bottom seat with a seal ring disposed on the external periphery thereof. There are two supporting lugs, a cold water inlet tube, a hot water inlet tube and a water outlet extended from the bottom of the bottom seat. Both the cold and hot water inlet tubes have a short extended insertion section and also have a seal ring at their ends respectively. The connection mount and the water outlet conduct are integrally produced. The connection mount has a cold water inlet, a hot water inlet and a water outlet and is provided with an externally threaded journal section at the top thereof. Whereby the assembly of the components can be completed with speed and ease without finely machining insertion grooves, resulting in the saving of production time, labor and cost. No specific orientation must be check in assembly to make the assembly easy and quick.

Abstract: A valve is provided having a housing defining first and second flow areas. First, second and third flow ports open into the first flow area, while fourth and fifth flow ports open into the second flow area. A flow passage is provided having one end opening into the first flow port and another end opening into the second flow area. First and second flow control gates are disposed in the first and second flow areas, respectively, and are rotatable between first and second positions. With the first and second gates in the first position, the first gate seals off the third flow port opening such that the first and second flow ports are in fluid communication via the first flow area, and the second gate seals off the flow passage opening such that the fourth and fifth flow ports are in fluid communication via the second flow area.

Abstract: A ceramic valve in combination with a connection mount is provided. The ceramic valve has a bottom seat with a seal ring disposed on the external periphery thereof. There are two supporting lugs, a cold water inlet tube, a hot water inlet tube and a water outlet extended from the bottom of the bottom seat. Both the cold and hot water inlet tubes have a short extended insertion section and also have a seal ring at their ends respectively. The connection mount and the water outlet conduct are integrally produced. The connection mount has a cold water inlet, a hot water inlet and a water outlet and is provided with an externally threaded journal section at the top thereof. Whereby the assembly of the components can be completed with speed and ease without finely machining insertion grooves, resulting in the saving of production time, labor and cost. No specific orientation must be check in assembly to make the assembly easy and quick.

Abstract: In a single lever mixing valve, having a sliding member sliding on a lever holder, for adjusting an amount and temperature of discharge water by rotating a disk actuating stem on an axis thereof or by operating a handle lever for inclining the disk actuating stem. A fit-in hole is so formed on the handle lever that the disk actuating stem is loosely fitted therein, with a gap formed between a side surfaced of the disk actuating stem and a gap-defining inner surface of the handle lever; a spacer so sized as to close the gap is provided; a spacer insertion hole is formed in the handle lever such that the spacer insertion hole is open on an outer surface of the handle lever; and the spacer is inserted into the spacer insertion hole to fix the disk actuating stem fitted in the spacer insertion hole.

Abstract: The present invention relates to a rotary valve assembly for a pressure swing adsorption system. The rotary valve assembly includes a first valve member and a second valve member relatively rotatable about a common center of rotation to provide valving action for selectively transferring fluids therethrough. The second valve member has a first fluid section with at least one aperture adapted for transferring a first fluid of a first pressure and composition therethrough and a second fluid section with at least one aperture adapted for transferring a second fluid of a second pressure and composition therethrough. The first valve member has a first fluid section with at least one passage for transferring the first fluid in the valve assembly and a second fluid section with at least one passage for transferring the second fluid in the valve assembly.

Abstract: A rotary valve for directing fluid streams which has a circular stationary head having at least one and desirably multiple primary ports for connection with fluid streams at least one secondary port. The stationary head includes a number of first circular concentric channels formed therein and at least one second concentric channel. The first and second channels are associated with the primary and secondary ports, respectively. A rotatable head is provided having radial chambers, each having a first and second port for connection between a first channel and a secondary port. The rotatable head rotates against the stationary head and channels in a fluid sealed manner. An indexable drive rotates the rotatable head to interconnect predetermined primary channels and secondary ports. The timing of rotation can be continuous or intermittent depending upon the associated process of the fluid streams.

Abstract: This invention relates to a group of valve components to regulate the flow of water in hot and cold water mixer taps, which comprises a mixer valve with a cartridge type body provided with reference pins and is intended to be housed, superimposed and in association with at least a pressure regulator, in a tap body. The superimposed mixer valve (10) and al least pressure regulator (11) are assembled together by fastening screws (14, 16, 19, 111′) in order to form a block to be inserted into/removed from the tap body as a single group.

Abstract: The combination of a shower valve having a metallic movable stem to control operation of the valve and a non-metallic high strength composite handle adapter secured to the stem for movement therewith, with the non-metallic handle adapter preventing galvanic corrosion between the metallic valve stem and a metallic handle attached to the handle adapter.

Abstract: A valve cartridge for controlling the flow of fluid from a fluid source to a fluid outlet, the valve cartridge comprising a valve body having a first body portion and a second body portion. A valve cartridge comprising a fixed ceramic plate and a moveable ceramic plate is mounted within the body. A biasing element is disposed between the moveable ceramic plate and the second body portion for biasing the moveable ceramic plate against the fixed ceramic plate. The first and second body portions are coupled together such that a portion of the second body portion biases the fixed ceramic plate against the first valve body portion to compressibly retain the first ceramic plate there against and independently of the biasing element biasing the rotating ceramic plate against the fixed ceramic plate.

Abstract: A faucet (29) of the type which has an adjustable delivery spout (14) and includes a mixing cartridge (21) with single control lever (25) installed in a cavity or recess (35) available on the faucet. The recess for installation of the cartridge in the valve is formed in a component (11) of the faucet that is integrally formed with the spout (14). The component (11) in which the cartridge is installed has a two-way rotating hydraulic coupling to the fixed body (1) which is operably connected to supply pipes. As the spout (14) is adjusted about the fixed body (1), the lever (25) is carried by the component (11) to retain the same orientation of the lever (25) with respect to the spout (14).

Abstract: A cold/hot water switching/controlling valve structure of a mono-spout faucet, which includes a valve main body, an adjusting seat, a restricting member, an upper switching/controlling valve, a lower switching/controlling valve, and a switching/controlling seat. The restricting member can be directly taken out for re-adjusting the restricting member to a desired position so as to easily adjust the amount of discharged hot water.

Abstract: A cartridge used for valve batteries that serve for mixing cold water and warm water, said cartridge having two discs arranged one above the other, namely, a lower inlet disc and an upper regulating disc wherein said discs together form a sealing plane. A driving arm insuring the planar movement of the regulating disc is allowed to be rotated around a fastening pin placed in a lever holder. The driving arm is in driving connection with a ceramic moving element which, in turn, is in driving connection with said regulating disc, and the surfaces of said ceramic moving element, preferably a first ceramic moving surface and a second ceramic moving surface. The surfaces of said ceramic moving element are guided by means of guiding surfaces, preferably a first guiding surface and a second guiding surface, both formed in the lever holder, in a manner that the angle between the direction of movement of the ceramic moving element and the rotation axis of the driving arm differs from 90°.

Abstract: In a staged gas turbine combustion engine, each combustion chamber of an annular array of chambers includes at least a pilot and a main combustion stage each having an fuel injection nozzle; the method includes feeding fuel continuously in operation to the pilot stage nozzle and controlling the fuel flow to the main stage nozzle through a pulsing and dosing valve to control the fuel flow delivered to the main stage fuel nozzle.

Abstract: A valve assembly has a one-piece housing having lower, upper, and side sockets respectively defining lower, upper, and side openings. A stepped mounting sleeve has a downwardly directed shoulder bearing inwardly on an upper-opening shoulder, an upwardly directed shoulder, and a threaded lower end engage in a holder inside the housing. An insert mounted on the holder has a front face directed outward at the side opening, adapted to carry a valve cartridge, and provided with connections for fluid supply lines. A mounting rod extending through the insert and sleeve has an upper end at the upper socket and a lower portion extending out of the housing through the lower opening. A nut threaded on the upper rod end bears downward on the upwardly directed shoulder of the mounting sleeve. Mounting structure engaged with the rod lower portion outside the housing secures the housing down against a mounting surface.

Abstract: A sanitary valve contains an inlet for cold water, an inlet for hot water and two outlets for mixed water. The valve contains a thermostat, which determines the mixed water temperature. For controlling the mixed water quantity leaving the valve a disk control is provided, which simultaneously forms a changeover device between the two outlets. For changeover purposes use is made of the actuator with which the quantity control is also implemented. On turning from the closed position in one direction one outlet is opened, whereas on turning in the opposite direction the other outlet is opened.

Abstract: The invention relates to a cartridge for a single lever mixer faucet comprising a fixed (4) and a moveable sealing washer (3) which are arranged in a housing (1), whereby the movable sealing washer (3) comprises a recess (15) for engaging with a control tappet (9) of a control handle (11) which traverses a pivot support (10). The invention provides that the moveable sealing washer (3) comprises, on the surface thereof which faces the control tappet (9) and which is located in the area of the outer periphery of the washer (3), a step (14) which serves as a volume stop that can cross over with regard to the pivot support (10).

Abstract: A cartridge for a mixing faucet is provided, in addition to the valve formed by a pair of disks and controlled by a single lever, with an electrically operated valve which can be actuated by a proximity detector to respond to the presence of a user's hand near the valve outlet.

Abstract: Two-stage water-saving structure of a faucet, including an inner switching/controlling valve assembly, a bar seat, a locating pin, a switching/controlling bar and a housing. The inner switching/controlling valve assembly is composed of several controlling valves. Two engaging hooks and two locating blocks are disposed on the bottom of the inner switching/controlling valve assembly. The top face of the inner switching/controlling valve assembly is formed with a water exit. The top face of the bar seat is formed with a central rectangular bar hole. Two inner lateral sides of the bottom of the bar hole of the bar seat are respectively disposed with two semicylindrical locating blocks. A lateral side of the bar seat is formed with a central pin hole. The bottom end of the switching/controlling bar is disposed with a downward extending semispherical switching/controlling head. A front and a rear faces of a lower section of the switching/controlling bar are formed with <-shaped stop faces.

Abstract: The present invention relates to a rotary valve assembly for a pressure swing adsorption system. The rotary valve assembly includes a first valve member and a second valve member relatively rotatable about a common center of rotation to provide valving action for selectively transferring fluids therethrough. The second valve member has a first fluid section with at least one aperture adapted for transferring a first fluid of a first pressure and composition therethrough and a second fluid section with at least one aperture adapted for transferring a second fluid of a second pressure and composition therethrough. The first valve member has a first fluid section with at least one passage for transferring the first fluid in the valve assembly and a second fluid section with at least one passage for transferring the second fluid in the valve assembly.

Abstract: A valve cartridge for controlling the flow of fluid from a fluid source to a fluid outlet, the valve cartridge comprising a valve body having a first body portion and a second body portion. A valve cartridge comprising a fixed ceramic plate and a moveable ceramic plate is mounted within the body. A biasing element is disposed between the moveable ceramic plate and the second body portion for biasing the moveable ceramic plate against the fixed ceramic plate. The first and second body portions are coupled together such that a portion of the second body portion biases the fixed ceramic plate against the first valve body portion to compressibly retain the first ceramic plate there against and independently of the biasing element biasing the rotating ceramic plate against the fixed ceramic plate.

Abstract: A highly durable, inexpensive valve seat and valve unit are achieved by using a synthetic resin for forming the valve seat. The synthetic resin valve seat is equipped with a first valve aperture and a second valve aperture for inflow, and a third valve aperture for outflow. At least either the first valve aperture or the second valve aperture is set in communication with the third valve aperture through a communication hole of a movable valve seat, or the first and second valve apertures are closed by the movable valve seat. A protuberance that slidably contacts the movable valve seat is formed on a surface of the synthetic resin valve seat that opposes the movable valve seat and on the opening edges of at least the first valve aperture and the second valve aperture such that the protuberance surrounds the first valve aperture and the second valve aperture.

Abstract: A limiting device for use with a single-handle valve for mixing hot and cold water and for controlling the maximum flow-volume or the maximum temperature of flow through the valve. The device limits the range of motion of the control stem of a single-handle mixing valve. The device comprises a guide template and an insert. The guide template generally defines the range of motion of the control stem, the control stem being positioned within a camming aperture of the guide template, the camming aperture having the same general shape as the range of motion of the control stem. The guide template includes a guide-cover key that prevents any rotary movement of the guide template relative to the single-handle mixing valve, and a guide-insert key. The insert further limits the range of motion of the control stem during engagement with the guide template. The insert includes an insert-limiting edge that further reduces the size of the camming aperture during engagement of the insert with the guide template.

Abstract: A fluid metering valve, for example as shown in FIG. 1, comprises a valve element moveable, axially and angularly, by a drive member, a sensor arranged to monitor the position occupied by a target carried by the drive member, and an adjustment arrangement whereby the axial position of the target can be adjusted relative to the drive member independently of the angular position of the target. A backlash free connection may be provided between the valve element and the drive member, the backlash free connection comprising a projection protruding laterally from one of the drive member and the valve element, the projection being received within a recess associated with the other of the drive member and the valve element, the dimensions of the projection and the recess being such that the projection engages the sides of the recess but is spaced from the base thereof, and biasing means urging the projection towards the base of the recess.

Abstract: A highly durable, inexpensive valve seat and valve unit are achieved by using a synthetic resin for forming the valve seat. The synthetic resin valve seat is equipped with a first valve aperture and a second valve aperture for inflow, and a third valve aperture for outflow. At least either the first valve aperture or the second valve aperture is set in communication with the third valve aperture through a communication hole of a movable valve seat, or the first and second valve apertures are closed by the movable valve seat. A protuberance that slidably contacts the movable valve seat is formed on a surface of the synthetic resin valve seat that opposes the movable valve seat and on the opening edges of at least the first valve aperture and the second valve aperture such that the protuberance surrounds the first valve aperture and the second valve aperture.

Abstract: A valved device is provided for controlling flow into or out from a surgical patient. It includes a body defining a flow passageway and a valve connected to the body in flow communication with the body's passageway. The valve includes a barrel and a piston extending into the barrel. Means is provided for displacing the piston within the barrel along the barrel's axis to open a flow path that is preferably adapted for liquid suction. Means is also provided for rotating the piston within the barrel around the barrel's axis to open a flow path that is preferably adapted for smoke or gas evacuation.

Abstract: A seat valve for controlling pneumatic or hydraulic pressure between at least two pressure fluid channels (8, 8′) includes a valve closure member (5) connected to a magnetic armature (4), a spring for the basic positioning of the valve closure member (5) in relation to a valve seat (7) in the valve housing (6), a magnetic core and a valve coil for the translatory movement of the magnetic armature (4). A control channel (1), a tappet (2), a sleeve (2′), a rotating field winding (3), and an opening 3′) are provided to produce a rotary movement of the magnetic armature (4) and to transmit the rotary movement to the valve closure member (5) for the variable control of a pressure fluid passage.

Abstract: The present invention relates to a ceramic disc cartridge for mixing fluids in faucets and the like, which comprises a driving rod for driving a movable ceramic disc, the rod being coupled to the body of the cartridge by a ball-type of movement. The movable ceramic disc driving rod drives the movable ceramic disc with a hunting type of movement.

Abstract: The present invention relates to a faucet which includes a one-piece manifold body and a swivel spout pivotably mounted on the body. The body preferably has first and second leg portions for accepting fluid flow therethrough. The faucet may also preferably include an escutcheon coupled to the body, a cartridge coupled to the body, and a retainer ring interposed between the cartridge and the body. In one preferred embodiment, the faucet may include an auxiliary outlet mechanism which may include a diverter valve disposed in the body, as well as a hand spray coupled to the body and in fluid communication with the diverter valve.

Abstract: A mixing valve has a housing, a fixed valve plate in the housing having a flat outer surface generally centered on and perpendicular to a main axis and formed offset from the main axis with a pair of angularly offset and axially throughgoing inlet ports, and a movable valve plate in the housing having an inner surface flatly engaging the outer surface of the fixed valve plate and an opposite outer surface. The movable valve plate is formed with a pair of angularly offset and axially throughgoing inlet ports alignable with the fixed-plate inlet ports. The ports of one of the pairs of inlet ports are at different radial spacings from a center of the respective plate.

Abstract: A capillary valve, connector and router where one or more cylindrical fibers, which may be capillaries, plugged capillaries, optical fibers, or the like, including at least one capillary tube are contained in a first cylindrical bundle of fibers that terminates at a first face. A second cylindrical bundle of fibers also containing one or more fibers including at least one capillary tube terminates in a second face abutting the first face. A fastener or adapter holds the members together with faces in mutually biased alignment, allowing relative rotation of the two cylindrical bundles which terminate in rotatable ferrules. Various functions achieved by rotation include a zero dead volume slide valve, a fluid router and a manifold. The fibers in each sleeve are preferably of uniform size for close symmetrical packing, but could be of disparate sizes, allowing connection of macroscale tubes to capillary tubes.

Abstract: A water temperature regulating valve for limiting the maximum temperature of the water output. A temperature limiting cap is installed above the cartridge of the regulating valve. The limiting cap restricts the rotation of a control rod device pivotally installed in the barrel portion of the valve. When the limiting temperature is to be reset, the user removes the cap, rotates it to the desired position, and reinstalls the cap.