Abstract: An apparatus having a pair of normally closed solenoid valves is retrofitted between hot and cold water inlets and a mixing faucet. Each valve includes a bypass with a mechanically operated valve. A flexible conduit is used to connect each of the valves to the faucet. A switch and an electrical circuit is used to simultaneously open the solenoid valves.

Abstract: A system for selectively delivering cold, lukewarm, warm or hot water to a bath, shower and the like is controlled by water temperature function switches arranged in cascade series at a control panel in order of priority descending to hot water. When a water temperature function switch corresponding to no water flow or water flow at the desired temperature is closed, a low voltage DC signal is sent to logic circuitry which, in turn, sends a low voltage DC signal to appropriate relays which control the operation of solenoid-operated valves, the inlets of which are connected to hot and cold water mains, the outlets of which are connected to a water delivery conduit leading to the bath, shower and the like. The logic circuitry comprises a pulse shaper circuit, a reset pulse circuit and a gate pulse circuit. A flow detector in the water delivery conduit senses when water flow therethrough has ceased, and sends a signal to the reset pulse circuit, which in turn signals the logic circuitry to shut down the system.

Abstract: The fitting has in each case a hydraulically operable shutoff valve (40, 42) for hot and cold water. The diaphragm-shaped closure part (56) interacts with the valve seat (52). Provided on the side opposite the valve seat (52) is a pilot control space (60) which is connected through the passage (62) to the annular channel (48) and the corresponding feedline (20). Via control lines (86'), each pilot control space (60) is connected to the outlet line (24) via an auxiliary valve (70'). The two auxiliary valves (70') are constructed on a ceramic disk valve (72) and can be operated jointly. When the auxiliary valves (70, 70') are closed, the pressure in the pilot control space (60) corresponds to the pressure in the annular channel (48), the shutoff valves (40, 42) are closed. By rotating the operating shaft (86) the two auxiliary valves (70') are opened, by which means the pressure in the pilot control spaces (60) drops.

Abstract: The mixing fitting (10) has a shutoff valve (22) for hot water and a shutoff valve (24) for cold water. These shutoff valves (22, 24) are constructed as diaphragm valves and each have an auxiliary valve (62, 62') provided in the pilot control space (50). To operate these auxiliary valves (62, 62'), permanent magnets (76) are provided which can be swivelled about the axle (80') into and out of the range of action on the closure elements (64) of the auxiliary valves (62, 62'). To open the shutoff valves (22, 24), the swivel body (78) is swivelled by means of the drive (94) with the permanent magnets (76) into the region of the closure elements (64), by which means the latter are pulled toward the permanent magnets (76) with the auxiliary valve (62, 62') opening. The pressure in the pilot control space (50) drops and the shutoff valve (22, 24) is opened by the closure part (44) being lifted from the valve seat (40).

Abstract: A two-stage gas regulator for liquefied-gas containers includes a lower body and an upper cover with a mediate plate disposed therebetween. The lower body has a plurality of inlet ports respectively in fluid communication with a corresponding liquefied-gas container, a first pressure-reduction chamber selectively in fluid communication with one of the inlet ports under control of a switch, a second pressure-reduction chamber in fluid communication with the first pressure-reduction chamber, and an outlet port in fluid communication with the second pressure-reduction chamber and a gas stove. The mediate plate has a first opening and a second opening respectively in alignment with the first and second pressure-reduction chambers. A first membrane is provided in the first pressure-reduction chamber to cover the first opening, and a second membrane is provided in the second pressure-reduction chamber to cover the second opening and for operating a secondary pressure reduction.

Abstract: An electronic tap control unit for controlling water supply from a tap, forcep, system nozzle or the like is disclosed which comprises a water manifold (40) which has a plurality of inputs (46) for supplying water from a water supply. The supply inlets (46) are each provided with a solenoid valve (48, 50 and 52) which is controlled by a logic control circuit (14). The logic control circuit 14 is coupled to a detector (12) which detects the proximity of a user's hand to provide an output signal to cause the logic control circuit (14) to move through a sequence of water temperature and time range options until the user removes his hand from the proximity of the sensor (12) at a desired water temperature and time range. The logic control circuit (14) then outputs signals to the solenoid valves (48, 50 and 52) to cause water to be supplied through the inlets (46), to the manifold (40) and then to a tap, forcep, system nozzle or the like in accordance with the selected temperature and time range.

Abstract: This device is an automatic faucet with three temperature settings activated by a pressure switch which is mounted on or near the floor by the user's foot. The invention includes a device which will, after a period of time, automatically turn the water off after the switch has been depressed. In the preferred embodiment, the user upon approaching the sink, could, by viewing indicator lights, readily discern whether a hot, cold or warm temperature setting has been selected.

Abstract: The fitting has a valve (18) for cold water and a valve for (sic) (20) for hot water. Arranged fixedly on the closure part (38) interacting with the valve seat (42) is the auxiliary valve seat (56) of the relevant auxiliary valve (52, 54). The closure element (58) can be displaced in the direction of the axis (30) from the idle position shown into the desired limiting position by displacement of the control pin (82) in the direction of the axis (78') and by rotation of the same about the axis (78'). The auxiliary valves (52, 54) are thereby opened which leads to a pressure drop in the pilot control space (40). The closure parts (38) are lifted from the valve seats (42), by which means the water can flow from the inlet (22, 22') into the outlet (48, 48'). When the valve (18, 29) is opened, the gap between the O-ring (66) and the auxiliary valve seat (56) thus becomes smaller. This results in a pressure balancing occurring between the pilot control space (40) and the other side of the closure part (38).

Abstract: The three-way valve has a chamber in the body which is adapted to provide a connection from an outlet passage to both inlet passages. One inlet passage is closed by a valve lid which bears on a valve seat and which functions as an automatic outlet valve when the armatures moves into a top position. The other valve lid moves independently in dependance on the inlet pressure of the second inlet passage and the pressure in the outlet passage. In the illustrated rest position, the armature acts by way of a convex closure member to press the lower valve lid onto a valve seat about the second inlet passage.

Abstract: A system in which a surface tension device is connected at the outlet of the propellant tanks, said surface tension device having surface tension gas barrier means, the presence of gas bubbles at the inlet of said surface tension device is detected and a detect signal is produced, said detect signal indicating that the propellant tanks are empty. The detect signal then causes the spacecraft thrusters to be fed from an auxiliary propellant tank. The latter can be implemented inside a main propellant tank.

Abstract: A pilot operated flow modulating control valve with a pilot valve to incrementally control the position of the control valve and flow. The control valve has a closure valve for blocking flow through the valve and an oppositely acting but integral modulating valve that modulates flow through the control valve. An electromagnetic coil driven actuator has a pilot seal that modulates flow through a pilot passage in the control valve to effect following movement of the control valve. A relatively low voltage through the coil positions the control valve in its maximum flow position and a relatively high voltage through the coil moves the control valve in its modulating positions, minimizing inadvertent control valve instability from transient voltages or pressures when the valve is modulating.

Abstract: A purge valve assembly for purging the burner of a large scale power boiler of fuel oil has an air driven rotary actuator with a rotor coupled to two three-way valves such that when the actuator is in a first position, the burner is shut down, in a second position, the burner is purged of oil, and in a third position both steam and oil pass to the burner for combustion. The second or purge position is maintained by impressing air under pressure at equal pressures on both sides of the rotor.

Abstract: A hot/cold water flow rate regulating device, comprising a holder and a cap respectively secured to a mounting plate by a connecting rod and a bolt head stake. A tubular driving member which has a spiral track on its inside is fastened in the cap to drive a link to carry two valve rod assemblies to move up and down so as to respectively regulate the flow rate of hot and cold water and cold water into a mixing chamber for further discharge through a water outlet pipe.

Abstract: A type of multi-purpose photoelectronic automatic sensing faucet mechanism with single handle and water temperature regulation and water stop functions, an interior mechanism in faucets to be used in basin, shower tap and kitchen, comprising mainly of a piston rod fixing seat, a constant pressure water stop plate, a water output control valve, a temperature regulating and water stop turning shaft, a temperature regulating and water stop turning shaft fixing seat and a water inlet hole overflow check pad. Its water output is controlled by infra-red ray photoelectronic sensing switch solenoid, producing imbalance of water pressure in the solenoid, causing automatic control of water output, and coordinated with the design of single-handle temperature control and water stop function manual switch, to suit different user's requirement of temperature and convenient operation.

Abstract: A mechanical linkage characterizer for varying the movement of one output linkage with respect to an input from a linkage includes a generally box-like housing with a carriage mounted on tracks within the housing with a pivotally mounted output arm carried on the movable carriage and a pair of elongated variable contour stationary cams positioned adjacent the track for pivotally moving the output arm in response to movement of the carriage along the tracks.

Abstract: A shuttle valve (10) for use in a dual refrigerator system (100) and operated by controlled refrigerant pressure lines (120, 122) to provide that either one or both of two evaporators (104, 106) are active. The valve (10) includes piston chambers (30) at each end having an outer portion (26) communicating with pressure lines (120, 122) and an enlarged inner portion (32) and an intermediate chamber (21) having valve seats (22) at each end. The valve (10) includes inlet and outlet ports (14, 16) communicating with the piston chamber enlarged portions (32) and an outlet part (18) communicating with the intermediate chamber (21). The valve (10) also includes a piston assembly (40) having opposed pistons (41, 42) interconnected by a biased push rod (44) and mounted in associated piston chambers for closing associated inlet ports (104, 106).

Abstract: An apparatus for mixing liquids in a housing including a plurality of valves which are adjustable by use of drive gears on the outside of the housing. At least one of the drive gears may have some teeth missing so that one valve may be adjusted without adjusting the other valve.

Abstract: An air/gaseous fuel proportioning device includes an air inlet, a fuel inlet, an outlet to feed an air fuel blend to an engine, with the air inlet having an air butterfly valve to throttle the air flow, having a disc-shaped fuel valve resting in a conical bore and having a linkage attached to the air butterfly valve for causing the fuel valve to follow the air butterfly valve in a tilting motion to provide an open area between the disc and cone that relates proportionally to the air flow past the air butterfly valve.

Abstract: A multi-constituent mixing and metering dispenser adapted to yield a composition whose intermixed constituents are in relative proportions settable by the user. The extrudable constituents are stored in separate compressible pouches encased in face-to-face relation in the squeeze container of a supply section. Secured to the top of the container is a metering and mixing output section having a mixing chamber therein provided with an outlet. Each pouch has a flexible dip tube inserted therein leading to the mixing chamber in the output section. The container includes a check valve that is caused to close when the container is squeezed, thereby hermetically sealing the container and exerting pneumatic pressure on the pouches to cause extrusion of the constituents into the mixing chamber from which the resultant mixture is discharged through the outlet.

Abstract: The valve, preferably a dual control valve suitable for high pressure use, has a housing (2) formed with parallel bores in which rotatable valve elements (3,4) are located. The rotatable valve elements are each formed with a blind bore (22,23) coaxial therewith, and defining between an outer surface of the valve element and the blind bore a valve sleeve which communicates via lateral cut-outs (38,39) with inlets (11,12) to the blind bores. Valve sleeve portions (47,46) are left adjacent the cut-outs. The valve housing (2) is formed with outlet openings which can be exposed upon rotation of the valve elements to the remaining valve sleeve portions or to the cut-outs, respectively, to provide, selectively, CLOSED or OPEN positions of the respective valve elements. The housing and the valve elements are made of metal, the valve elements being fitted in the bore with slight amount of play.

Abstract: The present invention provides an improved faucet which has two holes (115), (116) formed on the bottom of a hemispherical valve seat (113) on the same plane, two channels (117), (118) formed on another plane and these two planes cross each other; six holes on a ball valve (14) are separated by two groups, one group of holes (142), (143), (144) respectively match the channel (117) and holes (115), (116); when the ball valve (14) is turned, another group of holes (145), (146), (147) respectively match the channel (118) and holes (115), (116); a holding groove (148) for a holding protrusion (114) to pass through and hold the ball valve (14) in position; an H-shaped guide groove (152) formed on a valve stem guide (15) for a valve stem (141) to pass through and connect with a handle (24); a bi-directional feed pipe with one end connects with a valve outlet hole (124) which open or close is controlled by a solenoid valve (31), with the other end connects with the channel (118); a pipe juncture (134a) formed on the

Abstract: A hot/cool water regulating faucet comprised of a housing and a cover knob, with two sleeves respectively mounted on the two cross shaped openings of the housing. Each sleeve is comprised of a movable axle connected with a spring, a rubber cock, a metal cap, a nut and a washer. By means of the tracks made on the cover knob to control the expansion of the two movable axles of the two sleeves, the flow rate of hot water and cool water and the mixed water temperature are concomitantly controlled.

Abstract: A device for fluid mixing and flow control in showers, baths, and sinks. Three flow control valves are connected to a mixing chamber. Two of the valves control two inlet channels into the chamber, and the third valve controls the flow out of the chamber. The two inlet valves are linked to operate in unison in opposite phase (one opens when the other closes), providing a variable fluid mixing ratio. The complementary operation of these mixing valves causes their combined flow rate to remain constant while the mixing ratio varies. The third valve controls the total flow rate. This provides independent control of mixture and flow via a simple device. A circular dial can show the control arm positions clearly, allowing quick, absolute adjustment.

Abstract: A water delivery control system that may be retrofitted to an existing water delivery fixture by simply removing the existing valve handles and then mounting the control system over the existing valve stems. The control system includes an external housing, a control panel on which an operator may select a desired temperature and pressure, and a valve actuator assembly including at least one electromechanical valve actuator and valve actuator linkage for coupling the valve actuator to an existing valve stem. The spatial arrangement of the valve actuator assembly is such that the valve actuator linkage will couple with an existing valve stem when the control system is surface mounted on the wall or countertop that surrounds the existing water delivery fixture.

Abstract: An apparatus for the producton of particular concentrations of gaseous materials as well as for mixing different gaseous materials in a specified ratio in which the gaseous materials are supplied from different sources in pulsed fashion to at least one common outlet. The gaseous materials are passed through a valve which has n inlets and m outlets, n and m being whole numbers. This valve can connect at least one inlet for a specifiable time with a particular outlet. The valves are controlled preferably by a pulse-width modulated method, for example by means of a microprocessor. A gas pump is connected downstream from the common outlet.

Abstract: A fluid faucet includes a first passage having a first mouth and connected to a first fluid source, a second passage having a second mouth and connected to a second fluid source, a hollow cylinder having a first hole and a second hole, a third passage having a third mouth for passing a fluid mixed from the first and second fluids, an electromagnetic valve having a valve stem engagable with the third mouth and an infrared coupling-and-controlling circuit. The first and second holes are capable of respectively fully shielding or communicating with the first and second mouths when the hollow cylinder is rotated. The infrared coupling-and-controlling circuit actuates the electromagnetic valve to set the valve stem to be in disengagement with the third mouth to permit the mixed fluid passing through the third mouth when a body is in a distance close enough to such a faucet.

Abstract: A control system and method for chemical injectors includes a controller which outputs multiple feed set point signals and associated driver signals, each set point signal defining a desired injection capacity for a chemical injector and the associated driver designation signal designating the injector to receive the set point signal. A driver assembly is associated with each injector. The driver assembly receives a capacity signal from the injector which defines the volumetric injection capacity of the injector, compares the capacity signal to the feed set point signal, and outputs a drive signal to adjust the volumetric injection capacity of the injector. An adjustment assembly is provided for receiving the drive signal and positioning a stop to limit the reciprocal motion of the piston of the injector, thereby adjusting the volumetric injection capacity of the injector.

Abstract: A mixing valve (10) has a modular cartridge (60) rotatably mounted in housing (12). The cartridge has a bottom volume control valve plate (58) attached to a lower section (62) housing a pressure balance valve (80). The lower section (62) is secured to an upper section (120) that rotatably receives a temperature control plate (150). The plates (58) and (150) are both rotatable about a common axis (64). The plate (58) is controlled by operation of stem (180) attached to handle (34). The plate (150) is controlled by stem (160) which is operated by knob (38). An insert (250) allows the knob (38) to operate even when hot and cold water supplies are inverted. A splined hot water stop ring (228) sits in handle (34) and adaptably limits rotation of knob (38) for a selected maximum water temperature. Outer seals (58) assure that all water flows through cartridge (60) when the volume is set for partial flow.

Abstract: A household water faucet adapted for connection to the hot and cold lines of a domestic water system includes an electrical system controlled by pushbutton switches for selectively causing either hot, or cold, or a predetermined "warm" blend of hot and cold water to flow from the faucet, or stopping the flow by operating an "OFF" button. The faucet includes a cylindrical mixing valve supported for limited rotational movement within a bore in a main body to which hot and cold water is supplied. The mixing valve includes a pair of inlet ports oriented with respect to the hot and cold inlets to a main body such that in a first rotational position only cold water enters the mixing valve, in a second position only hot water enters the valve, in a third position both input ports are in partial registration with the hot and cold inlets to produce a mixture of hot and cold, and in a fourth position there is no registration of the inlets with the ports and the flow is turned off.

Abstract: A multiple blade damper for an air handling system of the type in which at least an adjacent pair of blades of the damper are operated in parallel, that is, in which each of such pair of blades is oscillated in the same direction as the other of the pair of blades which is adjacent to it. A generally L-shaped baffle is positioned in the duct in which the damper is located between the adjacent pair of damper blades in alignment with the overlapping edges of the damper blades in their closed positions, with a short leg of the baffle extending normally of the air flow path through the damper and a long leg extending along the air flow path, a major terminal portion of the long leg extending at a small acute angle, for example at 15.degree., with respect to the air flow path.

Abstract: There is disclosed an assembly including a plurality of storage tanks for respective liquid chemicals to be metered, a plurality of feed chambers of a predetermined volume associated with respective storage tanks and disposed below such respective storage tanks, a conduit for process fluid for receiving predetermined volumes of such liquid chemicals as predetermined time cycles wherein the liquid chemicals are introduced in parallel feed to the process fluid in response to respective cycle timers.

Abstract: A touch faucet post-mix drink dispensing system for simultaneous dispensing of syrup and soda with a single valve chamber and two poppets in tandem. The poppets are spaced for positive seating and sequential opening of the soda and syrup flow paths with a single motion of the actuating lever resulting in a reduction of the required actuating force and thereby less load on the drink cup and reduced likelihood of damage to the cup.

Abstract: A mobile cleaning unit for providing high pressure cleaning and rinsing sprays, comprising a van-type vehicle with separate sources of water and cleaning and treating solutions. The sprays may be heated by a self-contained water heater with a fuel ignitor operated by low voltage direct current. The separate solutions are selected by a pressure switch sensitive to an increase in spray line pressure caused by stopping the spray by operation of a valve at the spray applicator. The pressure switch acts to sequentially open a supply valve for each solution in turn.

Abstract: The invention comprises a mixing valve assembly with a cold and hot water inlet, a mixing chamber, and a mixed water outlet, wherein the mixed water temperature is adjustable by rotation of the actuator, and wherein a constant water flow can be set by axial depression of the actuator. More reliable operation is achieved, along with simplifications in manufacture and installation, by having on the assembly a locking device for the actuator, so constructed that when the actuator is depressed it is held by the locking device in the new position but is released when again depressed.

Abstract: The device comprises a plurality of pipes (7a to 7h) which may contain liquid under pressure and whose ends are radially fixed in a circle in a plane, a coupling unit (17) having an end communicating with another pipe (40) and rotatively mounted in the plane within the circle, means (16) for driving the unit in rotation, and means (21) for bringing its end in succession in coincidence with the ends of the plurality of pipes. The coupling unit is telescopic, its axis of rotation (12) extends through a bowl (2) and its movable end (26) communicating with the other pipe (40) cooperates with the ends of the pipes (7a to 7h) which are closed by automatic valves.

Abstract: A device which can provide tap water at some specified temperature simply by turning on a hot water knob and a cold water knob. By turning a calibration dial, a control pin can be turned accordingly by which the degree of alignment of a pair of control holes with respect to a pair of spiral grooves is adjusted and a specified temperature of water is obtained. Therefore, once the calibration dial is set, a certain temperature of water can be obtained every time by simply turning on the water knobs and without having to readjust the knobs several times before reaching some desired temperature of water.

Abstract: Safety mechanisms for a plumbing fixture supplying hot and cold water through a common line. One mechanism is mechanical and the other electrical. The mechanical mechanism makes use of a mechanical linkage between the hot-water valve and an auxiliary cold-water valve to flush residual hot water out of the common line with an excess of cold water. The electrical mechanism uses a microprocessor to activate the cold-water valve when the hot-water valve is shut of, this flushing the residual hot water out of the line with an excess of cold water.

Abstract: An apparatus for reinflating an object such as a punctured automobile tire. The apparatus including a valve assembly having a housing with two inputs which are connected to an outlet through passageways within the housing. A valve is provided such that the input passageway which receives the output from a compressed air source is connected, in its normal position, to the outlet of the housing for connection to an automobile tire or inflatable object. The second input to the valve assembly is opened by placing the valve in the second position. The second position of the valve closes the first input from the compressor to the outlet and seals the first input from the second input. The second input includes a threaded fitting on an aerosol type can which seals the input to the housing as well as it seals with respect to the can to which it is attached.

Abstract: A fluid mixer device comprising a body (110) having an internal chamber (112) into which there open out at least one hot fluid inlet orifice (116), at least one cold fluid inlet orifice (117), and at least one outlet orifice (124) for the mixture of hot and cold fluids, a slide (150) being received in the chamber (112) and defining, in co-operation with the body (110), a hot fluid passage connected to the hot fluid inlet orifice, and a cold fluid passage connected to the cold fluid inlet orifice, and a thermal expansion element (130) fixed to the slide (150) and suitable for displacing the slide (150) within the chamber (112) in order to modify the ratio of the free fluid flow sections in order to maintain the outlet mixture at a predetermined temperature.

Abstract: Disclosed is a production tree (10) with a top block (mandrel) (12) of the tree provided with a cone-shaped male connector member (14) which also functions as a manifold, and called a cone seal manifold, by having a plurality of shuttle valves (66) which, in the production mode connect umbilical hydraulic control lines (44) to valve actuator control lines (42). In the workover mode, a running tool (132) having a mating bell-shaped female connector member (134) engages the cone seal manifold (14) and moves the shuttle valves (66) to disconnect the umbilical control lines (44) from the valve actuator control lines (42) and to open the valve actuator control lines (42) to rig hydraulic control lines in the running tool (132) through the mating cone seal surfaces (134,56). Normally closed passageways (112) in the cone (56) of the cone seal manifold (14) are opened by fluid pressure from the rig control lines.

Abstract: A fluid faucet includes a first passage having a first mouth and connected to a first fluid source, a second passage having a second mouth and connected to a second fluid source, a hollow cylinder having a first hole and a second hole, a third passage having a third mouth for passing a fluid mixed from the first and second fluids, an electromagnetic valve having a valve stem engagable with the third mouth and an infrared coupling-and-controlling circuit. The first and second holes are capable of respectively fully shielding or communicating with the first and second mouths when the hollow cylinder is rotated. The infrared coupling-and-controlling circuit actuates the electromagnetic valve to set the valve stem to be in disengagement with the third mouth to permit the mixed fluid passing through the third mouth when a body is in a distance close enough to such a faucet.

Abstract: A valve sub-assembly that can be used with either a mechanical or an electrical valve actuator, and in either pressure or gravity operation. The valve sub-assembly has a pair of paddle valves with valve actuating arms that are simultaneously snap actuated by a yoke of either the mechanical or electrical valve actuator. In addition, a valve assembly with a mechanical valve actuator that includes a snap acting, over-center spring arrangement. Also, a method for converting a valve assembly between pressure and gravity operation, and mechanical or electrical operation.

Abstract: A mixing block (40) for mixing a combustible gas mixture, consisting of at least two components, for processing materials by means of temperature and pressure concussions, particularly for thermal deburring apparatuses, is suggested, having a gas feed borehole (43 and 44) for each gas component, opening into a mixing and ignition duct (61, 68, 69, 73, 74, 75), wherein a main valve (48, 49, 50, 51 and 52, 53) for admitting the gas components into the mixing and ignition duct (61, 68, 69, 73, 74, 75) and for closing the gas feed boreholes (43 and 44) so as to be gas-tight during the combustion process is arranged in each gas feed borehole (43 and 44).

Abstract: A mixing valve particularly suited for use as a water faucet includes separate levers for selectively delivering an unmixed flow of cold water, an unmixed flow of hot water, and one or more mixed flows of intermediate temperature water. An intermediate temperature flow is obtained by combining separate flow of cold and hot water in a mixing chamber. Temperature selection elements are provided to control the relative proportion of the flow of cold and hot water delivered to the mixing chamber so that any desired intermediate temperature can be selected for the mixed flow delivered from the mixing chamber. Constant temperature of a mixed flow is maintained throughout the available range of flow rates by coordinating the admittance of cold and hot flows to the mixing chamber with respect to the discharge of mixed fluid from the mixing chamber.

Abstract: An apparatus 1 for mixing first and second gases includes first and second valves 2, 3 each having a stem 14 the axial movement of which controls the flow of the gases through their respective valves. Each valve stem has one end engaging a control surface 16 of a thrust plate 18 mounted for axial and pivotal movement on a shaft 20. Means including a plunger 26 is provided for pivoting the thrust 18 so that one valve stem is moved axially relative to the other thereby increasing the rate of flow of one gas through its respective valve while concomitantly decreasing the rate of flow of the other gas through its respective valve to vary the relative proportion of the gases without varying the total flow rate. Total flow adjuster 34 bears on the plunger 26 for moving the thrust plate 18 axially towards and away from the valve stems 14 thereby to vary the total rate of flow of the gases without varying the relative proportions of each gas flowing through its respective valve.

Abstract: A post-mix beverage dispensing system of a small size and capacity includes a minimal number of cabinet-mounted dispensing valve assemblies to be used in combination with a larger number of syrup valve adaptor assemblies. The adaptor assemblies are attached to removable syrup containers and are removable from the cabinet-mounted valve assemblies with the containers. The adaptor assemblies include syrup outlet tubes with flow-rate orifice plates matched to predetermined brix values of syrup flavors. A valve actuation assembly is provided which may selectively dispense either soda water alone or a carbonated post-mix beverage.

Abstract: A water temperature control device wherein the relative inflows of hot and cold water into a mixing chamber and then to an outlet are controlled by a mercury filled temperature sensing element, the volume expansion or contraction of the mercury activating a slave cylinder and connecting linkage to open and close in compensatory fashion the valves allowing increased and decreased water flows from the cold and hot water supplies.

Abstract: An arrangement for controlling the flow of fluid in which the fluid is allowed to flow through a selected number of parallel paths of various flow capacities as determined by restricting orifices and cutoff valves. Accurate volume/length of fluid is dispensed at variable velocities by controlling both applicator velocity and flow rate. An arrangement is also provided for controlling the shape of the deposited fluid employing controlled air flow confinement.

Abstract: An electronically controlled hot/cold water system including a temperature controlled mixing valve in flow series with an automatically controlled volume controlled valve. The system includes a T-fitting having one inlet connected to the outlet of the volume valve, one inlet connected to a manually controlled hot/cold mixing valve and one outlet connected to a point of use such as a shower head.

Abstract: This invention relates to a device used in the selection between two fluids that are to be injected into a liquid metal contained in a metallurgical converter: an oxidizing gas and another gas conveying powdered carbonaceous material; both fluids arrive through different conduits to a selecting valve located at the bottom of a metallurgical converter just before a single conduit tuyere for leading one of the fluids to the liquid metal by means of the selective mechanism in such valve.