Abstract: An assembly method includes a step of press-fitting a second valve 27 to a valve shaft 29 to which a first valve 25 is press-fitted and secured while measuring and adjusting a distance L2 so that it becomes equal to a distance L1. Thus, the first valve 25 and second valve 27 are press-fitted to the valve shaft 29 and those components are swaged together so that the first and second valves are secured to the valve shaft, and oil is placed in a press-fitted portion. When components, such as the first valve 25, are sintered parts, oil contained in the sintered parts themselves is used for increasing a joining force that occurs in the press-fitted portion.

Abstract: The present invention relates to a hydraulic drive which comprises a hydraulic motor having a first hydraulic connector and a second hydraulic connector, wherein the pressure applied at the first hydraulic connector of the hydraulic motor and the pressure applied at the second hydraulic connector of the hydraulic motor are each separately adjustable.

Abstract: A valve including a body that defines first and second ducts that open out into a third duct. The first duct is provided with a first shutter and the second duct is provided with a second shutter connected to drive means arranged to move the shutters in a normal mode of operation in which the second shutter is in the closed position and the first shutter is adjustable in position between an open position and a first closed position, a stop mode in which the second shutter is in its closed position and the first shutter is in its first closed position, and a secondary mode of operation in which the second shutter is in its open position and the first shutter is in a second closed position.

Abstract: A rotary coupler for directing a fluid flow between a supply of pressurized fluid and a fixture which is rotatable about a fixture axis and which has a manifold plate directing the fluid flow from a manifold inlet and a manifold outlet to a plurality of stations on the fixture positioned about the fixture axis. The coupler including a spindle including a base portion and a shaft portion and which extends in an axial direction from a mounting end on the base portion and a distal end on the shaft portion. The base has a mounting face and a securing arrangement configured to secure the mounting face to a manifold plate such that the mounting face sealingly engages the manifold plate. The shaft portion defines a coupler axis and has a shaft surface generally coaxial to the coupler axis and the shaft surface includes an annular pressure zone and an axially spaced annular tank zone.

Abstract: In one embodiment, a frost-free sillcock is provided. The sillcock has a single handle which rotates to control the temperature of the discharged fluid. The handle also moves axially toward and away from a mounting surface to control the volume of fluid discharged from the sillcock.

Abstract: A system for processing one or more substrates according to the present invention includes a diversion valve that can deliver two or more process fluids to a dispensing device through a common line/pipe. The present invention also includes related methods.

Abstract: The present invention provides a spool of a faucet with a two-sided effluent structure to improve the shortcomings of a faucet spool with the known cold/hot water switching structure. The spool includes a spool assembly mounted into the valve shell. A valve base is placed at bottom of the valve shell and is provided with a cold water inlet, hot water inlet and two water outlets. The cold and hot water inlets are arranged centrally onto the bottom of the valve base, while two water outlets are assembled separately but symmetrically at both ends of cold and hot water inlets. When the spool is arranged separately onto the wall, the configuration of cold and hot water inlet pipes are greatly simplified to reduce the configuration cost of pipelines with improved applicability.

Abstract: There is described a 3-port directional control valve having a first valve chamber, a second valve chamber and a third valve chamber, wherein a first fluid passage, which can be closed off by means of a first adjustable valve body, is provided between the first valve chamber and the second valve chamber, and a second fluid passage, which can be closed off by means of a second adjustable valve body, is provided between the second valve chamber and the third valve chamber. The first valve body and the second valve body are arranged on an actuating element which is mounted so as to be rotatable about at least one rotational axis, so that the adjusting movements of the valve bodies take place in opposition to one another. A diaphragm is arranged between the valve bodies, and the actuating element, herein the effective area of the diaphragm is matched to the effective cross section of the respective valve body for the purpose of force equalization.

Abstract: The invention relates to an insertion piece to a single-grip mixing faucet developed as a control unit with a ceramic insertion, and on its one side it is connected to a footing, on its other side to a driving arm, the control unit itself, the cartridge, comprises a fixed stationary inlet disc and a moving control disc arranged one above the other to form together a plane sealing. The other side of the inlet disc is coupled to a footing, whereas the control disc on its side opposite to the inlet disc is in a forced connection with a ceramic moving element, which, in turn, is in connection with the driving arm. On the footing, a warm water inlet, a cold water inlet and an outlet are situated.

Abstract: A diverter valve for selectively controlling the flow of fluid from a fluid source to one of several fluid outlets includes a fixed ceramic disk fixed to a housing and a rotating ceramic disk retained in the housing against the fixed disk by a retainer. An accessory mount is adhered to the rotating ceramic disk to facilitate connection to accessories and to direct fluid from the valve. Flow passages in the disks cooperate with flow passages in the housing and flow passages in the accessory mount to balance the pressure of fluid flow within the valve against the disks to minimize leaks and prolong durability.

Abstract: A temperature adjustable water mixing valve having a cold water inlet, a cold water outlet, a hot water inlet, a mixing water outlet, and a valve core configured to open or close water channels. The temperature adjustable water mixing valve further includes a pressure relief channel between the cold water inlet and a port connected with a water storage device. The channel is equipped with a check valve allowing water to flow from the water storage device to the cold water inlet. The temperature adjustable water mixing valve opens the check valve to discharge toward the front-end water source when the inner pressure in the water storage device is high.

Abstract: A mount structure for a two-way valve for a fuel tank of a small boat for improving mountability of the two-way valve while ensuring strength of the deck. The interior space of the boat, which is formed of a hull and a deck, is provided with an engine, a fuel tank, and a duct. One end of the duct is attached to the wall surface of the deck with a mount member. The two-way valve is connected to the breather hose of the fuel tank, and attached to the mount member at one end of the duct from the interior space of the boat. The mount member is integrally provided with a mount pipe for the tube which opens the two-way valve outside the deck.

Abstract: A steering system includes a fluid pump and an electro-hydraulic steering circuit in selective fluid communication with the fluid pump. The electro-hydraulic steering circuit defines a first flow path having a first proportional valve and a first load-sense passage in selective communication with the first proportional valve. The first proportional valve includes a closed position. A hydrostatic steering circuit is in selective fluid communication with the fluid pump and defines a second flow path having a second proportional valve and a second load-sense passage in selective fluid communication with the second proportional valve. The second flow path is in a parallel flow configuration with the first flow path. An isolation valve is disposed in the first flow path in series with the first proportional valve. The isolation valve includes a closed position and is piloted to the closed position by fluid communicated through the second load-sense passage.

Abstract: A fluid controller includes a first fluid meter defining a first plurality of volume chambers and a second fluid meter defining a second plurality of volume chambers. A selector assembly, disposed between the first fluid meter and the second fluid meter, includes a selector plate defining a bore and a selector valve disposed in the bore. The selector valve is adapted for rotational movement between a first position and a second position and includes a first face and an oppositely disposed second face. The selector valve defines a plurality of thru-passages that extend axially through the first and second faces and that is adapted to provide fluid communication between the first and second volume chambers in the first position. The selector valve defines a groove disposed on the second face. The groove recirculates fluid from the second plurality of volume chambers when the selector valve is in the second position.

Abstract: A block valve of the present invention comprises; a block portion (1) comprised of a trunk fluid channel penetrating the block portion (1) and four branch fluid channels branching in pair from the trunk fluid channel, and four valve members (2) for permitting or cutting of communication of each of the branch fluid channels, wherein the branch fluid channels are formed so that, in an arrow direction X indicating the extending direction of the trunk fluid channel, the forward valve member (2) do not ride over the backward valve member (2). Internal volume and residence area of the block valve of the present invention are smaller than those of conventional block valve.

Abstract: A pressure control system that controls the pressure of a fluid in a plurality of zones includes a distribution manifold, at least one main manifold connected to the distribution manifold, and at least one disposable manifold connected to the distribution manifold and the main manifold. The disposable manifold is adapted to be replaced independent of the distribution manifold and the main manifold, and is connected to each zone and to at least one vacuum source. The distribution manifold distributes the fluid to the plurality of zones, so as to cause flow of the fluid into and out of a measurement chamber located within each zone. The main manifold includes, for each zone, a pressure sensor configured to measure pressure in the measurement chamber in that zone, and a control valve configured to regulate the flow of the fluid through that zone.

Abstract: A dual inlet and dual outlet valve controls a flow from dual inlet pipes through dual outlets to dual outlet pipes to increase flow where space is not available for a single larger diameter pipe. The valve includes a rotatable cylindrical plug with vertically spaced apart plug mouths. The plug may be rotated to align the plug mouths with one of both dual outlets to allow a flow to the dual outlet pipes, or the plug may be rotated to block the flow to both outlets. The dual inlet and dual outlet valve is particularly useful in a spa where narrow spa walls limit pipe sizes. The valve allows parallel pipes into the valve and from the valve to jets, thus increasing the water flow to the jets and the resulting turbulence.

Abstract: In a method for controlling a valve system controlling an actuator, the first direction of motion of the actuator is controlled solely by the first and the second valve series; or, its second direction of motion is controlled solely by the third and the fourth valve series; and an error caused by a fault situation in the control of the actuator is compensated for by using, for the control of the first direction of motion, also the third valve series, the fourth valve series, or both of them; or, an error in the control of the actuator caused by a fault situation is compensated for by using, for the control of the second direction of motion, also the first valve series, the second valve series, or both of them.

Abstract: Abstract A rotating disc diluter (1) has a rotatable rotary element (4) which carries surface-accessible transfer volumes (9, 10) which along their common path of movement alternately glide over feed and discharge ports (11-18) for an undiluted fluid flow on the one hand and for a dilution fluid flow on the other hand. For the simple widening of the usable dilution rate range, the rotary element (4) has at least two rows of transfer volumes (9, 10) on different paths of movement, the associated feed ports (11-14) of which for the undiluted fluid flow and/or for the dilution fluid flow can be separately controlled.

Abstract: Contaminants are removed from fluid in a system where the fluid is sprayed into an air head at the top of a tank through a diffuser and withdrawn through a pick-up tube. A solenoid valve operates to allow oxygen-containing gas from a compressed gas source to flow into the tank through a shuttle valve, which is opened by the gas pressure. Simultaneously, a drain valve connected to the shuttle valve opens a drain, venting water and air from the tank. The solenoid valve also operates to close the gas supply line and connect the shuttle valve through a vent to atmosphere. Pressure within the tank closes the shuttle valve, which in turn closes the drain valve and disconnects the shuttle valve from the tank. A one-way-flow valve prevents fluid or gas from flowing from the tank backwards through the shuttle valve to the solenoid valve and out the vent.

Abstract: A one-handle valve cartridge includes a spring that isolates frictional forces between dynamic sealing elements in the valve cartridge and loads applied to the valve cartridge and transmitted to the dynamic sealing elements from an actuating mechanism of the valve cartridge.

Abstract: A one-handle valve cartridge has a low point of contact for installing the valve cartridge in a valve body. A retention nut bears down on the low point of contact to secure the valve cartridge in the valve body.

Abstract: A hydraulic system has high priority hydraulic functions connected to a primary supply line that receives pressurized fluid from a source and low priority hydraulic functions connected to secondary supply line. A priority valve couples the primary supply line to the secondary supply line. The priority valve detects when the source is unable to furnish enough pressurized fluid to satisfy the demands of all the high and low priority hydraulic functions. In that case the priority valve reduces or eliminates fluid flow between the primary and secondary supply lines.

Abstract: An adapter for use on an anesthesia machine having of three or more vaporizer units removably mounted thereon by an interlock/exclusion system. The interlock/exclusion system includes plural vertically oriented pins that are coupled together and are operative to move upward to prevent opening of any vaporizer units if one is open. One of the vaporizer units includes a horizontally oriented pin which moves outward when that unit is opened. The adaptor is arranged to mount that vaporizer on the machine and to couple the horizontally oriented pin to an associated vertically oriented pin of the interlock/exclusion system.

Abstract: A pressure pulse generator includes a pressure pulse transmitting body displaceably arranged in a chamber divided by the body into a first and a second part, a first spring and a second spring, arranged to displace the body in a first direction and a second direction respectively in the chamber, a first conduit leading between a high pressure source and a first part of the chamber, wherein the pressure fluid in the first part acts on the body for displacing the latter in the second direction, and elements for opening/interrupting a communication between the first part and the high pressure source through the first conduit. The opening/interrupting elements interrupt communication while the body is displaced in the first direction from a predetermined starting position through a triggering of the first spring, and maintain communication while the body is displaced in the second displacement direction back to the starting position, whereby a biasing of the first spring is accomplished.

Abstract: The air distributor according to the invention is provided with an air distributor housing (30) that has an assembly opening, a compressed air inlet (31.2) and a first and a second compressed air outlet (36, 37). The air distributor is further provided with a sheath (39) that can be built into the assembly opening and comprises an air channel (43, 44) that is connected to the first compressed air outlet (37). Lastly, the air distributor is provided with a setting element (38.1) that, together with the sheath (39), constitutes a first valve by means of which the compressed air inlet (31.2) can be connected to the first air channel (43, 44) and the first compressed air outlet (37). The setting element (38.1), together with the air distributor housing (30), constitutes a second valve by means of which the compressed air inlet (31.2) can be connected to the second compressed air outlet (36), where the opening widths (41, 42) of the two valves can be set by means of the position of the setting element (38.1).

Abstract: In one embodiment, a gas spring having a travel control includes positive and negative chambers and a valve mechanism that controls the fluid communication between the chambers. The valve mechanism includes a valve bore that while only moving a small amount, allows for large changes in gas spring travel length.

Abstract: A control handle assembly for a plumbing fitting has a first control member having a bore and a ledge within the bore extending radially inward to an inner dimension, and a second control member having a mounting post with a ledge extending radially outward to an outer dimension. A deformable clip is captured by the control members between the ledges and has a radial outer dimension greater than the inner and outer dimensions of the ledges so as to rotatably couple the control members. A spout coupling assembly has a lower adaptor defining a lower passageway for housing a diverter and an upper adaptor coupled to the lower adaptor defining an upper passageway. An annular recess is formed in the upper adaptor and a collar is axially restrained in the annular recess. A spout is coupled to the collar so that the spout and collar rotate simultaneously.

Abstract: A system (10) for generating high pressure pulses has a source (12, 16) of a pressurized working fluid (14). The working fluid is supplied to two conduits (22,24). A valve (26) has an input connected to each of the conduits (22, 24). The valve has a valve member (29) that is movable between two positions. In one position the valve member allows working fluid to flow from the first conduit (22) to an outlet and blocks the second conduit (24). In the other position the valve member allows working fluid to flow from the first conduit (22) to the outlet and blocks the first conduit (22). Flow of the working fluid causes the valve member to reciprocate and thereby generate water hammers in conduits (22) and (24). Energy from the water hammers may be harnessed for various applications.

Abstract: A microfluidic valve. A microfluidic channel is formed in a substrate. A cooling element cools a substance in the channel to inhibit flow of the substance through the channel. A heating element warms the substance to overcome the effect of the cooling and enable the substance to flow through the channel. The valve may serve as a component of a microfluidic device that in turn may be part of a microfluidic system.

Abstract: In certain embodiments, an apparatus includes a control valve for regulating fuel flow. The apparatus can include a burner and a valve assembly. In some embodiments, the valve assembly includes a housing, which can define a first fuel input for receiving a first fuel from a first fuel source and a second fuel input for receiving a second fuel from a second fuel source. The housing can define a first fuel output for directing fuel toward the control valve, and can define a third fuel input for receiving a portion of either the first fuel or the second fuel from the control valve. The housing can define a first egress flow path and a second egress flow path, each for directing fuel to the burner. In certain embodiments, the apparatus includes a valve body configured to selectively permit fluid communication between the first and second inputs and the output and between the third input and the egress flow paths.

Abstract: An in-floor pool cleaning system includes a first valve having one bottom inlet port, three or more side discharge ports, and a first flow diverter and a second valve having one bottom inlet port, three or more side discharge ports, and a second flow diverter. One of the discharge ports of the first valve is connected to the inlet port of the second valve. A first motor linked to the first valve is configured to rotate the first diverter and a second motor linked to the second valve is configured to rotate the second diverter. The system includes in-floor cleaning nozzles fluidically connected to discharge ports. A controller electrically connected to the motors is configured to actuate the motors and, in turn, to rotate the diverters into respective positions configured to direct water flow to a selected one or more of the plurality of nozzles.

Abstract: The invention relates to an apparatus (1) for preparing a beverage (2), preferably with a froth layer (4), comprising a liquid storage tank (6), a valve device (8) and a heating device (9). The valve device is arranged to receive unheated liquid (U) from said liquid storage tank and to provide said unheated liquid to said heating system to obtain heated liquid for preparing said beverage. By rearranging the various components of the apparatus (1) such that the valve device (8) is at least partly arranged in the cold water circuit of the apparatus, the deposit of calcium in the valve device is reduced or eliminated. The invention further relates to a valve device (8) and a method for preparing a beverage.

Abstract: The present invention is directed to a thermostatic water mixing valve having a sub-base coupled to a base, both having a hot water inlet, a cold water inlet and a mixed water outlet. A disk assembly including a lower or stationary disk and an upper or rotatable disk are positioned on the base. Each disk includes a hot water inlet, a cold water inlet and a central opening. The lower disk also has a peripheral notch that receives an extent of an engaging member that extends from a sidewall of the base, while the upper disk has a peripheral cavity that also receives an extent of the engaging member. A cap is coupled to the upper disk, wherein the cap and the upper disk rotate as a unit with respect to the lower disk. The cap has a hot water cavity and cold water cavity positioned about a central opening. A cartridge assembly extends through the cap and includes a collar with at least one aperture aligned with the cold water cavity of the cap.

Abstract: In a four-way valve having a simple structure, even if a high-temperature refrigerant and a low-temperature refrigerant flow close to each other, heat loss between both refrigerants is suppressed. The valve comprises a housing member including a valve chamber, a valve seat including a bearing surface portion located in the valve chamber, a first channel through which a high-temperature fluid flows and a second channel through which a low-temperature fluid flows at a predetermined time, including openings adjacent to each other at a bearing surface portion of the valve seat, passing through the valve seat and extending outside of the valve chamber, and a valve element moving to the bearing surface portion of the valve seat. A thermal resistor portion suppressing heat transfer between these channels is located near the openings, between the first and second channels.

Abstract: A valve which is composed of: —A seal consisting of two identical ferromagnetic discs (1), which enclose another smaller-diameter disc (2) and a permanent magnet, the rims (3) of the outer discs (1) being bevelled and the three discs conjointly forming a perimeter groove housing a spring ring (4), —A valve body in two superimposed parts (5)-(5?) with an intercommunicating chamber (6), inside which the rolling movement of the seal can take place, —Seal movements means consisting of: a bi-metal conductor (8) and an opposing spring (9).

Abstract: A three-way poppet valve that can restrict or eliminate backflow without the use of an external check valve. Unlike conventional three-way poppet valves wherein both inlets can be open to the outlet at the same time during movement of the poppet, the valve according to the present invention can be configured to close both inlets prior to opening one of the inlets to the outlet. The valve features a poppet valve assembly that is operable to prevent both inlets from being open to the outlet at the same time. The valve assembly also reduces the force needed to close the valve against at least one of the inlets thereby allowing the use of a smaller actuator. A unique seal including a valve seat that is configured to conform to a valve member under sufficient pressure.

Abstract: A pattern selector valve (32) is lodged in a seat supporting stool (22) which supports an operator's seat (23) thereon, with a switch lever (32B) at a front side of the seat supporting stool. An operator can easily check out the position of the switch lever (32B) of the pattern selector valve (32) at the time of getting onto the operator's seat (23). Besides, the switch lever (32B) of the pattern selector valve (32) can be easily changed over to a different pattern position in the vicinity of the operator's seat (23). Check-out and change-over of the switch lever (32B) are facilitated and can be carried out in a secure manner under guidance of a pattern indicator (39) which is provided on a front cover (34).

Abstract: An axle locking cylinder structure is provided.

Abstract: A method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle. With known methods, electromagnetic valves are triggered with a pulse-width-modulated signal having a constant clock frequency. The object is to provide a method by which a rapid response characteristic and a high adjustment precision of the electromagnetic valve are made possible. The specific properties of a hydraulic system in which electromagnetic valves are used, in particular the rigidity and damping, are not constant but instead change considerably under different operating states of the hydraulic system and/or with different performance quantities of the electromagnetic valve. These different properties are taken into account through the change in the clock frequency as a function of performance quantities of the electromagnetic valve.

Abstract: The present invention relates to an electrically operated valve (10), which has a valve housing (11); a spool (12); a first fluid conduit (14) connecting the valve (10) with a source of pressurized fluid; a second fluid conduit (15) connecting the valve (10) with a reservoir of fluid; and a third fluid conduit (16) in communication with valve (10) which delivers fluid to or receives fluid from apparatus which uses the hydraulic fluid flow controlled by the valve (10). The spool (12) is biased to a rest position by a pair of opposed springs (17,18) and in the rest position closes off the first (14) and second (15) fluid conduits. A first electric coil (19) associated with a first end of the spool (12) when activated displaces the spool (12) to open the first fluid conduit (14). A second electric coil (20) associated with a second end of the spool (12) when activated displaces the spool (12) to open the second fluid conduit (15).

Abstract: An apparatus for manipulating fluid samples comprises a micro-chip device having first and second covered channels, each channel having openings at both ends. The channels intersect to form a common intersection. Three of the openings of the channels are connected to a multi-port valve to control pressure in the device.

Abstract: Aconveyer for treating hollow bodies, comprising several identical treatment stations (12, 13) that process at least one hollow body, whereby the respective treatment station for a given treatment stage communicates with a pressure source via distribution means that include a tight revolving extention. The invention is characterized in that the machine includes at least two independent and equivalent pressure sources (A1, A2) for the given treatment stage. The invention is also characterized in that it is divided up into the same number of treatment stations (12, 13) as the number of pressure sources existing for the machine and in that the distribution device (18) are such that each pressure source (A1, A2) is associated with a specific group.

Abstract: A description is given of a multiway valve, comprising a chamber, limited by two plane-parallel surfaces, into which chamber at least three feed or discharge ducts open out, the state of being open or closed of the ducts being affected by the positioning of a member comprising a permanent magnet, which member is moveable in two dimensions, accommodated inside the chamber, and which member can be made to interact in a sealing manner with one or more duct openings, and magnet actuating assemblies which are disposed stationarily around the chamber and comprise electromagnets with a soft iron core, which assemblies are designed to generate a magnetic field which attracts or repels the member for moving the member inside the housing.

Abstract: A plural function, three member, fluid valve includes a stationary base member which provides plural fluid ports connected to apparatus requiring or providing fluid control, a first movable member containing conduits which are selectively movable into alignment with the ports of the base member to select the function(s) to be performed, and a second movable member having a U-shaped passageway for selectively connecting passageways of the first member to execute the selected function, i.e., to form a fluid conduit from one port of the base member through a conduit in the first member, the U-shaped passageway in the second member and a second conduit in the first member to another port in the base member. Methods are also disclosed.

Abstract: A base-plate distributing valve comprised of a valve body, a base-plate element and a valve element slidably disposed within a longitudinal bore of the valve body. Pressure medium line ports and pressure medium lines are contained within the valve body and the base-plate element. The base-plate element contains an opening into which the part of the valve body which contains the valve element may be inserted. Within the valve element are valves. A drive element controls the valve element which shifts position the position of the valves within the longitudinal bore of the valve body to permit alignment of the pressure medium lines for flow therethrough. Accordingly, when the valve body is inserted into the base-plate element in a pressure-medium-tight seal, a substantially straight-lined flow of a medium through the base-plate element at a high flow rate is achieved.

Abstract: The invention attenuates higher frequency vibrations or oscillations which can result in wear and/or less than optimal performance of a valve positioner. The invention provides a low pass mechanical filter which can be realized, for example, in a dash pot like damper device. The damper includes a pair of diaphragms associated with a pair of chambers, which are in communication with one another by an orifice. The chambers associated with each diaphragm are filled with oil or a hydraulic fluid such that the rate of relative motion (for example between a summing beam of the positioner and the location at which a signal force is applied) is controlled by flow of oil through the orifice.

Abstract: A single-handled manifold for connecting a differential pressure transmitter to a source of differential pressure is provided. The manifold includes a body wherein a rotor is mounted for combined axial and rotary motion. Automatic sequencing of the various functions is provided by way of a single handle with multiple selectable positions.

Abstract: A concrete pump vehicle has a foldable concrete distributing boom (18) arranged on a chassis (10), a material container (24) arranged next to the rear end of the chassis (10) and a concrete pump (28) connected at its suction side to the material container (24) and at its delivery side to a delivery line (26) that extends over the distributing boom (18). The material container (24) is provided with an anti-splashing device that projects over the edge of the opening and ensures that no concrete splashes reach the machine area during operation of the pump. In order to achieve an optimal splash-protection in both the traveling and working states, the anti-splash device has a wall structure (36) that projects over the edge of the opening and a foldable wall (40) hingedly linked to the area of the upper edge of the wall structure (36).

Abstract: A supply valve includes a first valve member formed with a plurality of ports which communicate with containers of different fluids, and a second valve member having a single port which communicates with an inlet of a chamber into which the fluids are selectively supplied. The second valve member sealingly and slidingly engages with the first valve member, and is movable by a computer-controlled motor drive relative thereto in two directions to positions in which the port of the second valve member communicates with the ports of the first valve member respectively. Each position has unique coordinates in the two directions such that the fluids can be selected in any sequence. In one embodiment, the first valve member is a cylinder having a bore with an axis and the second valve member is a piston which is coaxially received in the bore, and the two directions are rotation above the axis and translation along the axis respectively.