Abstract: An automatic hydraulic valve which operates with pressurized fluid, particularly water. The valve closes when fluid pressure is applied and opens when the fluid pressure is withdrawn. It comprises a closed housing having a fluid inlet and outlet and an open housing which accommodates a plug on the end of a plunger reciprocating between the closed and open housings. The valve is particularly suitable for use with evaporative air conditioners.

Abstract: An actuation device sensitive to the flow of electricity from an electrical conductor from a source of electricity into an appliance. The appliance, upon being electrically activated, is to receive a flow of a fluid from a supply pipe. The actuation device to be connected to a valve mounted in conjunction with the supply pipe with this valve being movable from a closed position to an open position upon electricity being supplied to the appliance.

Abstract: A water delivery device with at least one delivery mouth (45) comprises a body (11) containing first controlled means (13) for mixing and delivery from said mouth of water coming from two first sources and second controlled means (25) of delivery from said mouth (13) of water coming selectively from second sources. In the body of the device is arranged a selector element (49) operated alternatively between a position of connection of the two first sources to mixing inlets (17,18) of the first control means (13) and selective connection positions of one of the second sources to an inlet (29) of the second control means (25).

Abstract: A post-mix beverage dispensing valve is shown having a quick disconnect mounting and easily detachable valve cover housing and valve actuating lever. The quick disconnect includes a body having a pair of parallel shafts extending therethrough. A pair of lock plates are secured on each end of the shafts. The locking plates each include a pair of locking tabs that cooperate with similarly sized locking pockets or areas on the valve main body. The valve also includes modular brix/flow control components to provide for quick adapting of the valve over a wide range of desired flow and/or brix parameters. An adjustable nozzle is shown for adjusting the flow rate of beverage there from with respect to the operating flow rate.

Abstract: A mechanism is provided for operating multiple air flow control valves from a single actuator. The mechanism includes a yoke mounted to move with the drive shaft of the actuator and having a leg facing in the direction of each valve. The leg is resolvably connected, preferably by a link pivotably connected at each end, to a lever connected at its other end to a control shaft for the valve.

Abstract: The quick opening and closing valve of the present invention has a main chamber. An inlet from a source of liquid and an outlet extends into the chamber adjacent to and at right angles to each other. A ball or other type of plunger chamber moves (a) from a closed position seated on the outlet (b) to an open position spaced from the seat formed where the outlet and chamber meet. When the plunger is on the seat, the plunger blocks fluid flow from the inlet to the outlet, and the valve is closed. When the plunger moves off the seat, the inlet and outlet communicate so that fluid flows directly from the inlet to the outlet. A control port extends into the chamber on the other side of the plunger from the outlet. The control port is alternatively opened or closed by a control gate. When the control gate is in its closed position, the control port is closed. The pressure at the outlet is approximately atmospheric, but some fluid flows to the other side of the plunger which elevates the pressure there.

Abstract: A distributor device for selective connection of at least one first inlet line with a first outlet line, as well as connection of a second inlet line with at least one second outlet line. The distributor device also comprises at least two spatially separated control elements. The first inlet line is connected to a first stationary body, each second outlet line is connected to a second stationary body, the first outlet line is connected to a first rotatable body, and the second inlet line is connected to a second rotatable body. The first and second rotatable bodies are rotatable with respect to the first and second stationary bodies. The first rotatable body and the second rotatable body each have a plurality of working positions wherein the first inlet lines communicate with the first outlet line and the second inlet line communicates with the second outlet lines.

Abstract: A fluid valve has a valve housing defining a corner and having a valve housing cover opposite that corner. That valve housing and cover enclose a valve chamber therein. A fluid inlet or outlet is in the valve housing cover. First and second valve seats for further fluid inlets or outlets are in first and second sides, respectively, of the corner in the valve chamber. A flapper is in that chamber for selectively closing the first valve seat and alternatively the second valve seat. A flapper actuator is in the corner of the valve housing. There may be an expansible valve closing member for each valve seat. Such expansible valve closing member may have an aperture paralleling that valve seat. A pilot valve may be at the expansible valve closing member for closing its aperture. Opening of the valve is initiated by moving the pilot valve away from the aperture in the expansible valve closing member, and such opening of the valve is completed by pulling the expansible valve closing member away from its valve seat.

Abstract: Apparatuses for the preparation of different hot drinks, such as in particular espresso machines, conventionally have a multiway valve (2), which is used for supplying hot water or superheated steam produced in a water heater to different means, such as coffee filters, frothing nozzle and/or collecting vessels. As a result of high temperatures and pressures the multiway valve is exposed to considerable stresses, which in the long term cannot be withstood by known valves or only when a complicated and costly construction is adopted. In the novel apparatus the multiway valve is provided with a perforated disk (8) and a rotary control dial (9). Rods (14) for closing the distributing passages (5) are passed through the holes in the perforated disk. The distributing passages are provided in a distributing block (1) to which the multiway valve is flanged. The position of the rods is determined by the rotary position of the control dial provided with a guide link for the rods.

Abstract: A flap arrangement, especially for a ventilation or airconditioning system or vehicles, has two flaps which are pivotable about pivot axes parallel to one another and which are coupled to one another for the oppositely directed pivoting movement. The coupling is made via a coupling rod articulated on the two flaps. To achieve a pivoting angle of the same amount on both flaps, the articulation points are so determined that, on the one hand, the radius of the circular paths described by them during the pivoting of the flaps is of equal size and, on the other hand, during the pivoting of the flaps, an imaginary effective straight line respectively connecting the two articulation points rotates about an imaginary center of rotation located approximately in the middle between the two pivot axes.

Abstract: A pinch valve assembly includes a valve body in which a plunger is spring loaded against a portion of a flexible tube which passes through the valve body. The plunger causes the flexible tube to collapse preventing flow through the tube. Energization of a solenoid which is mounted on the valve body causes the plunger to release the tube, permitting flow. In an alternative embodiment, energization of the solenoid causes the plunger to bear on the flexible tube thereby providing a normally open valve arrangement.In another alternative embodiment the plunger bears on a plurality of flexible tubes thereby facilitating simultaneous control of different fluids.In still another alternative embodiment the plunger is mounted in roller bearings and the top of the plunger bears on an electrical switch contact which provides an electrical verification of the open or closed state of the pinch valve assembly.

Abstract: A valve for use with a first working fluid conduit and a second working fluid conduit, the valve includes a valve body with a valve bore formed therein. A piston is slidably disposed within the valve body. There is a first opening and a second opening formed within and defined by the valve body. The first opening is in communication with the first working fluid conduit and the second opening is in communication with the second working fluid conduit. Displacement of the piston in a first direction to a first position results in restriction of working fluid passage through the second working fluid conduit. Displacement of the piston in a second direction, opposed to the first direction, to a second position results in restriction of working fluid passage through the first working fluid conduit. There is a spring which biases the piston into the second position.

Abstract: An apparatus for controlling the flow of fluid, comprising an 8-way switcg valve for directing an inlet stream of air to one of multiple adsorber beds and then to the crew compartment of an air-tight vehicle while simultaneously directing an outlet stream of air to another adsorber bed and then to the atmosphere, whereby the inlet stream may be purified by adsorption on one bed while the other bed is regenerated. The fluid is directed by passageways in rotatable valve spools axially colinearly aligned, connected together so as to rotate simultaneously, and having ports aligned with openings in a sealed valve housing which communicate with inlet and outlet piping and absorber bed piping. Rotating the valve spool aligns various configurations of passageways and piping so as to direct the streams to different beds. The valve spools may be contained in separate housings for safety, avoiding cross contamination during switching.

Abstract: A gas-fired water heater includes an oxygen supply system provided with the water heater system having an oxygen supply synchronizer installed juxtapositionally to the water heater, which is synchronously opened for supplying oxygen to a gas burner, into which the gas is discharged from a gas valve of the water heater upon an opening of a water valve for supplying water to be heated by the heater, thereby causing a complete combustion of the gas for preventing a production of poisonous carbon monoxide gas.

Abstract: A load handling vehicle for movement of a load such as a drag of logs over rough terrain. The vehicle has a grapple assembly for lifting one end of a load for dragging the load over the terrain with one end elevated. The grapple assembly is connected to the boom of the skidder vehicle by a releasable load coupling. The grapple assembly is hydraulically actuated and hydraulically connected to the tow vehicle for that purpose. A mainline is connected at one end to the grapple assembly and at the other end to the tow vehicle and engages a powered winch drum permitting playing out and allowing for reeling in of the mainline. The grapple assembly is detachable from the tow vehicle by disconnecting the load coupling. When the grapple assembly is detached from the tow vehicle, it still engages the load and can be dragged by the tow vehicle using the mainline over the rough terrain.

Abstract: A cut-off valve with multiple passageways and a single-handle control sandwiched between a manifold and a control member.

Abstract: A pinch valve for selectively pinching or releasing a multiple plurality of fluid conduits includes a rotatable single cam as part of a rotor within a stator for locating the fluid conduits. The cam periphery with different lobe surfaces for engaging movable means which is either a plunger or a endless belt which pinch or release multiple fluid conduits. The rotor integrally includes a gear, shaft and flag indicator and is operable by a stepper motor. A backing means about the stator resiliently resists movement.

Abstract: A multiple rotary control valve of the pinch type for use in conjunction with a steam sterilizing apparatus. The valve comprises at least two side by side cams, each having cylindrical and flat portions for respectively pressing and releasing, in the proper sequence, flexible tubes conducting the fluids intervening in the sterilizing process. In a preferred embodiment, the cams rotate about an axis transverse to the tubes and are disposed between opposite pairs of tubes, and the tubes are trained and held in transversely aligned openings provided in detachable covers. A wear member is provided between the cams and the respective tubes.

Abstract: A pinch valve assembly which includes a pinch lever rotatably mounted in a housing and a head at one end which serves controllably to pinch at least one pressurized fluid carrying tube against a corresponding pinch bar as the lever is turned between two angular positions. In one embodiment a toggle member is pivotally mounted in the housing and has a head positioned to operate the pinch lever between its angular positions, and to cause the pinch lever to snap by an over-center action between its angular position. In a second embodiment, a push-button member is used to operate the pinch lever.

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: A three-way double stopcock and associated tubing is disclosed with which to connect both a cardioplegia solution source and a pressure monitor for the solution selectively and alternatively to either an antegrade cardioplegia catheter or a retrograde cardioplegia catheter. The stopcock includes a hollow valve body with three solution infusion ports communicating to the interior thereof in a coplanar arrangement at a first longitudinal point on the valve body. Three cardioplegia pressure monitoring ports also communicate through the valve body to the interior thereof at a second longitudinal position distinct from the first. Mounted in the valve body is a cylindrical valve core selectively rotatable about the longitudinal axis thereof between a first position in which the cardioplegia solution source and the pressure monitor are coupled to the antegrade cannula and a second position in which the cardioplegia solution source and the pressure monitor are coupled to the retrograde catheter.

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 cylindrical valve having a fuel dispensing passage and a vapor receiving passage therein which are both simultaneously blocked or unblocked by butterfly valves controlled by a plunger which protrudes from one end of the cylinder and has a rack defined thereon which engages with pinion gears which in turn engage two valve shafts and rotate the valve plates. A spring or similar biasing element moves the plunger to the position under which the valve plates close the passages whenever the plunger is not forcibly depressed against the spring.

Abstract: A pinch valve assembly includes a valve body in which a plunger is spring loaded against a portion of a flexible tube which passes through the valve body. The plunger causes the flexible tube to collapse preventing flow through the tube. Energization of a solenoid which is mounted on the valve body causes the plunger to release the tube, permitting flow. In an alternative embodiment, energization of the solenoid causes the plunger to bear on the flexible tube thereby providing a normally open valve arrangement. In another alternative embodiment the plunger bears on a plurality of flexible tubes thereby facilitating simultaneous control of different fluids. In still another alternative embodiment the plunger is mounted in roller bearings and the top of the plunger bears on an electrical switch contact which provides an electrical verification of the open or closed state of the pinch valve assembly.

Abstract: A transmitter/manifold with integral transducer for measuring the differential pressure of a fluid conveying pipeline is provided. Valves are arranged to provide automatic sequencing for service functions. Means for heating the transmitter/manifold is provided. Interface modules are provided to provide for adaptability to a variety of user requirements. A sealing arrangement for interface modules is also provided.

Abstract: A blot screening apparatus is formed of a plate having numerous, elongated, narrow, shallow, parallel, separated reaction channels formed in one surface. The channel openings are positioned over a treated membrane which reacts with fluids introduced into the various channels. An elongated, narrow, groove-like socket, formed in the opposite plate surface, overlaps and extends transversely over each of the opposite and portions of the channels. Holes formed in the plate communicate the opposite ends of each channel with the base of its overlapping socket so that fluid samples may be separately introduced into each channel through its holes. Manifold plugs that are shaped to closely fit within the sockets are removably positioned in, and frictionally sealed against, the walls of the sockets, but are spaced from their adjacent socket bases.

Abstract: A throttle valve synchronizing mechanism for a plurality of throttle valves interconnected by a linkage system. The synchronizing system includes a pair of pivotally supported levers one of which is fixed for rotation with one of the throttle valve shafts and the other of which is connected to the linkage system. A locking screw arrangement holds the levers in adjusted positions and the locking screw rotates about an axis that is non-parallel to the axes of the levers.

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 connector comprises a carrier (1) adapted for fitment to a machine and a holder (130) adapted for fitment to a tool or an attachment. The carrier comprises two elongate hollow members (2), each of which contains a slide (11) situated displaceably therein, a chamber (4), which is situated between the hollow members, and displacement structure (15, 27), for displacement of the slides. The connector has connection structure for the interconnection and disconnection of the carrier and holder. The connection structure includes at least one first connection member (131) on the holder engageable with at least one first connection element (120; 113A) on the carrier, and at least one second connection member (133) on the holder engageable with at least one second connection element (113) attached to the slides.

Abstract: A direct drive throttling valve wherein two valve members (56 and 58) are connected to opposite ends of an armature (26). Armature (26) is supported in cantilevered fashion by flexure element (28) such that, when coils (32 and 34) are de-energized, the valve members are in the closed position. The coils are energized to open the valve members.

Abstract: A fuel control valve construction, parts therefor and methods of making the same are provided, the construction comprising a housing having an inlet adapted to be interconnected to a fuel source and an outlet adapted to be interconnected to a main burner, the housing having a pilot outlet adapted to be interconnected to a pilot burner for the main burner, the housing having a pilot valve seat and a main valve seat for interconnecting the inlet respectively with the pilot outlet and the main outlet, the housing having a movable pilot valve member for opening and closing the pilot valve seat and a movable main valve member for opening and closing the main valve seat, the housing having a movable lever carrying the pilot valve member and the main valve member and having a manually operable actuator for controlling the operating positions of the lever.

Abstract: A hot and cold water control valve having a body for supporting first and second liquid conduits having respective first and second valve closure members. Each of the valve closure members has an actuating member controlled by a handle that is secured to and for operation of the actuating member of the first and second valve closure members. The handle is adapted to be moved between open and closed positions.

Abstract: An internal combustion engine has two differently tuned sets of runners leading to the cylinders. A wave deflector element transversely spans a particular runner for one cylinder and the corresponding particular runner for an adjacent cylinder, and there is one wave deflector element for each pair of cylinders. The wave deflector elements are selectively operated in unison by an actuator to either open or close the runners of the set with which they are associated depending upon the operating state of the engine. The actuator is controlled by an electronic control unit. Each wave deflector element comprises a shaft and a pair of wave deflectors integrally formed of plastic so as to be of one-piece construction. The wave deflector element is resiliently flexible by bending for installation in the runners that it controls.

Abstract: A device for turning off valves for utilities such as gas and water from a remote location in the event of an earthquake or other emergency. The device has two spring loaded valve assemblies, each of which has a valve stem held away from a valve seat by a latch. When the latch is tripped, the valves close. Cables are passed from a pull ring accessible to the operator and pass through conduits to the spring loaded valves. In the event of an earthquake or other emergency, the pull ring is pulled and the utilities are shut off.

Abstract: A multiple port valve body has a cylindrical bore with at least two pairs of oppositely disposed inlet and outlet ports communicating therewith and a cylindrical valve member rotatably positioned in said cylindrical bore. Transverse passageways in the cylindrical valve member register with the inlet and outlet ports in a first position and oversize resilient elastic rubber plugs under compression are positioned in oppositely disposed pockets in the cylindrical valve member register with said inlet and outlet ports when the cylindrical valve member has been rotated on its axis approximately 90.degree. to a second position, the resilient elastic rubber plugs acting to bulge into the inlet and outlet ports to insure positive sealing thereof.

Abstract: A double-flow butterfly valve part (1) contains two butterfly valves (4 and 6), which are connected together by means of a coupling element (10). The second butterfly valve (6) is opened only when the first butterfly valve (4) is moved beyond a partially open position into the completely open position. To make it possible to shift the two butterfly valves (4 and 6) back by means of a single restoring spring acting on the first butterfly valve (4), a desmodromic control is provided between the coupling element (10) and the second butterfly valve (6). For this purpose, a lever (9) is disposed on the shaft (7) of the second butterfly valve (6). This lever (9) contains an arched slot (12), which is engaged by a roller (13) mounted in the coupling element (10). The coupling element (10), in turn, is provided with an arched slot (14), which is engaged by a roller (15) mounted in the lever (9).

Abstract: A connector assembly for connecting hydraulic lines in a control stab module assembly has an inner annular ring (27) having a plurality of radially outwardly facing ports (28) for the passage of hydraulic fluid therethrough, and an outer annular ring (1) having a plurality of radially inwardly facing ports (2) for the passage of hydraulic fluid therethrough. The inwardly facing ports (2) are arranged to be aligned with the outwardly facing ports (28) when the outer ring (1) is positioned about the inner ring (27). Each port comprises a first valve member (16, 33) which is resiliently biassed to a closed position to close the port, and urging means (53) are provided to urge the first valve member (16, 33) into an open position against the biassing means (17, 33) when said rings (1, 27) are positioned one about the other. Sealing means (25) are provided to seal an inwardly facing port (2) with an aligned outwardly facing port (28).

Abstract: An endoscope and valve system specially adapted for use with a disposable sheath having a plurality of channels and respective resilient tubes extending therefrom. In one embodiment, the resilient tubes extend along grooves formed in the side of an endoscope control handle and are captured behind a pivotably mounted access door. The valve system pinches the tubes against the door. The pinching mechanism selectively releases the tubes by pressing respective valve-actuating buttons on the control handle. In another embodiment, the tubes are placed in external pinch valves which are selectively actuated by actuating switches mounted on the control handle.

Abstract: An actuating arrangement connected with throttle valves of suction pipes of an internal combustion engine which are to be actuated synchronously. The throttle valves include bearing shafts and cooperate by way of levers with a linkage of the actuating arrangement. For the compensation of tolerances of the actuating arrangement, especially angular tolerances of the throttle valves, yielding members are provided between the linkage and the bearing shafts, and a device stresses the throttle valves into the closed end positions.

Abstract: An exhaust control device for an exhaust system for an internal combustion engine specifically applied to a motorcycle. An exhaust control device is incorporated that includes a single valve body having a plurality of exhaust gas passages that cooperate with each of a plurality of exhaust pipes that extend from the engine to the valve body. Parallel valve shafts are supported in the valve body and support valves that control the flow through the exhaust gas passages.

Abstract: The present invention is directed to a control valve device or arrangement for the simultaneous control of a plurality of fluid agents in a dental device. The control valve device arrangement comprises a valve member and a housing member composed of at least one part. Preferably, the housing member and the valve member are plate-like members which are arranged in a sandwich-like fashion with the valve member interposed between the two plates of the housing member and an arrangement is provided for shifting the valve member relative to the plates of the housing member. Each of the plates forming the valve member and the housing member are composed at least along the sliding surfaces of a ceramic material which is super-fine or smooth to form a sealing relationship therebetween.

Abstract: A two-axis force motor (10) has an armature (12) mounted within a body (11) for omni-directional pivotal movement relative to the body. The motor has an electrical section for causing the armature to pivot selectively in either or both of two mutually-perpendicular intersecting planes (x-x,y-y). The motor also has a fluidic section, which includes a plurality of valve members (64) spaced about the armature. These valve members are biased to engage the armature and are closed when the armature is in a null position. When the armature is pivoted off-null, some of the valve members will be opened, while others will remain closed.

Abstract: An improved valve for use in an exhaust system to increase the performance of the engine throughout the entire engine and load speed ranges by providing reflective areas that cooperate with the individual exhaust pipes of the engine to reduce pressure pulses in the combustion chamber during valve overlap periods. A number of embodiments of compact valve constructions are shown that employ relatively short journaling shafts for minimizing the effects of thermal expansion.

Abstract: A system for purging fluid delivery systems such as paint spray guns with non-toxic, non-polluting cleaning solvents. A sealed tank is provided for storing a cleaning solvent with air pressure applied to deliver the cleaning solvent through a coaxial hose to a slide selectable valve. Pressurized air is also connected to one of the conduits of the coaxial hose. Spray guns or fluid delivery systems are cleaned and purged by first releasing the cleaning solvent in the passageways and then quickly switching to a blow-down mode on the slide selectable valve to discharge the cleaning solvent from the spray gun passages.

Abstract: A fuel control valve construction, parts therefor and methods of making the same are provided, the construction comprising a housing having an inlet adapted to be interconnected to a fuel source and an outlet adapted to be interconnected to a main burner, the housing having a pilot outlet adapted to be interconnected to a pilot burner for the main burner, the housing having a pilot valve seat and a main valve seat for interconnecting the inlet respectively with the pilot outlet and the main outlet, the housing having a movable pilot valve member for opening and closing the pilot valve seat and a movable main valve member for opening and closing the main valve seat, the housing having a movable lever carrying the pilot valve member and the main valve member and having a manually operable actuator for controlling the operating positions of the lever.

Abstract: A number of embodiments of motorcycle exhaust systems including control valves for controlling the effective area of the exhaust pipes and for improving performance by preventing reflections from one exhaust pipe back into the cylinder served by another exhaust pipe. The valve means lies under the engine crankcase and the crankcase is formed with a recess for clearing the valve means and permitting air flow across it for cooling purposes. Various valving arrangements are disclosed as is a skid plate arrangement for protecting the valve means.

Abstract: A multiport valve with union plumbing connections utilizing a disc diverter of diameter larger than the valve's flow port diameter permanently housed in a spherical two piece welded housing that yields a nonserviceable but easily replaced multiport valve with low resistance. With removable plugs having surfaces shaped to correspond with the interior of the valve, the valve configuration can be changed from four ports to three or two ports at any time. Two external valve coupling flanges located normal to the ports together with clamps and a drop through actuator shaft allow multiple valve operation by a common shaft. An offset indexing spline located in the disc diverter's actuator shaft hole together with an ivertable valve body design allow relative positioning of valve diverters to be either parallel or perpendicular in multiple valves/common shaft configurations.

Abstract: An improved solenoid poppet valve includes an endless magnetic gap loop which overlies the valve chamber. The axis of the poppet valve intersects the magnetic gap and can be self centered by the energizing of the solenoid. The valve chamber can be sealed from the solenoid coil and magnetic poles using a relatively thin isolating material which can be fully supported by the magnetic pole structure. A novel dual rate spring combination supports and centers the poppets in the valve chamber. The spring provides one force to maintained the valve in the closed position and a second, greater force to "kick" the poppet away from the magnetic poles when the solenoid is deenergized. In alternative embodiments, the valve of the present invention can control the flow of one or several fluids. Yet other embodiments can provide several valves to control the flow of a single fluid.

Abstract: An air assisted hydraulic atomizing spray gun for liquid coating materials is characterized by an adjustable air/fluid turn on timing sequence which allows the air to be selectively turned on before, at the same time as, or after the fluid.

Abstract: This invention relates to a double coupling for removably joining twin pipes, wherein the two connectors of the male piece engage in parallel bores in the female piece, and one of them cooperates with a bolt mechanism which ensures removable assembly of the two pieces. In a variant, the bolt is disposed between the two bores in order to cooperate with the two connectors.