Abstract: A manipulative device capable of remote operation has a nozzle head having one or more nozzles adapted to eject a fluid stream having a component at right angles to the axis of the nozzle head. There is a flexible elongate hose for connecting the nozzle head to a source of remote operation, such as a joystick arrangement. Also valves capable of operation by tendons parallel to the flexible elongate hose enables spatial positioning of the nozzle head by remote differential operation of the tendons. The device may be used in various applications for example borehole mining, paint spraying etc.

Abstract: A control mechanism comprising a casing, an operating lever (1) projecting at the top from the casing and arranged to swivel omnidirectionally against a spring-produced resetting force, and at least two transducers arranged according to two orthogonal axes for producing signals being a measure for the magnitude of the swivelling angle and for the swivelling direction of the operating lever (1).The operating lever (1) is mounted near its lower end in a ball joint (2) received in the upper wall of the casing, with the free lower end of the lever (1) abutting on four spring elements (3,6,9,12) whose lines of action (X,Y) coincide two by two intersect each other at right angles. The spring elements (3,6,9,12) are connected at the lower end of the operating lever (1) to downwardly extending oscillating or wagging plates (5,8,11,14) whose ends (A,B), upon swivelling movement of lever (1), are displaced inwardly in the direction of the axis of the casing.

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: The valve has flexible resilient tubes which respectively communicate with the fluid supply conduits and which are pinched by control members to control fluid flow. Each tube has a reduced-diameter center or neck portion intermediate its ends which is engaged by the control member. The internal cross section of the neck portion is circular when relaxed and when pinched closed does not require any greater cross-sectional space than do the tube ends. Single-control and dual-control embodiments are disclosed. In the dual-control embodiment the two tubes are carried in a single cartridge assembly which is removable as a unit.

Abstract: The connector valve assembly is for insertion between a fluid inlet line assembly and an inflatable packer device having an externally disposed chemical dispensing assembly to pressure test and repair pipelines. The connector valve assembly is connectable to the fluid inlet line assembly which is comprised of a first chemical line, a second chemical line and a test media line and to the inflatable packer which has input connectors to receive the first and second chemical lines. The connector valve assembly has a first chemical conduit with an actuatable valve and connectors at opposite ends to transfer a first chemical component. A second chemical conduit with an actuatable valve and having connector means at opposite ends transfers a second chemical component. A valve actuating means is in communication with the second conduit at a location before its valve to simultaneously activate the valves of the first and second conduits.

Abstract: A bistable valve construction for alternately clamping flexible pipes with a closure member (1) having two closure edges (1a and 1b) which lie parallel with respect to each other, and which depending from the position of the closure member (1) will exert alternately pressure on the pipes, and wherein the flipping of the closure member into one or the other limiting closing position is performed by a biasing flipband (2) of a leaf-type construction.

Abstract: A novel improved pinch valve for controlling the flow of fluids in an unrestricted manner in, at least, two flexible tubes, including a housing for holding a solenoid coil between its outer wall and inner cylindrical core member. The solenoid armature is a truncated cone shape which coacts with a similarly shaped opening at the end of the inner cylindrical core member to optimize the flux path of the solenoid and thus its efficiency. A tube retention member includes openings for holding the flexible tubes. A further opening in the tube retention member holds a plunger member which is captured by a retaining pin. The plunger member is secured to the solenoid armature prior to assembly of the tube retention member to the solenoid housing. The plunger member moves with the armature as the solenoid is energized and deenergized. When the solenoid is unenergized, one of the flexible tubes is compressed between a knife like edge on the plunger member and a body portion of other tube retention member.

Abstract: A fluid control valve fluidly connected between a source of fluid pressure and a fluid operated device for controlling the pressurization and depressurization of the fluid device. The control valve comprises an elongated housing having an inlet port and an outlet port formed at one axial end of the housing and an exhaust port formed at its other end. The inlet port is connected to the fluid pressure source while the outlet port is connected to the fluid device. A first fluid passageway formed in the housing fluidly connects the inlet port to the outlet port while, similarly, a second fluid passage in the housing fluidly connects the outlet port to the exhaust port. A first valve is disposed in the first fluid passageway and movable between an open and closed position while a second valve is disposed in the second fluid passageway and also movable between an open and closed position.

Abstract: Dual circuit pressure control valves for brake system are known in which the control pistons are located parallel to each other with each control piston controlling a different one of two brake circuits. Both control pistons are loaded by a common preloading force. The known arrangement is complicated in its construction and has a large overall length. According to the present invention, the construction is simplified and the overall length is reduced by providing a torsion spring which provides the preloading force acting on the control pistons via stationarily supported swivelling levers.

Abstract: A fail-safe valve (10) for precluding contamination of fluid, such as milk, having passed through a main fluid flow line (12) from an input end, such as a milking claw, to a collection and storage tank is the subject of this application. A flushing conduit (46) through which flushing water or a sanitizing agent flows intersects the main fluid flow line (12).A pinching element (54) is provided with a first arm (56) for pinching closed the main line (12) at a resilient portion thereof down-flow from the intersection (48) of the conduit (46) with the main line (12). The element (54) also includes a second arm (58) which is angularly spaced from the first arm (56). The pinching element (54) is mounted for pivoting about an axis so that, when the element (54) is in its first position, the main line (12) will be pinched closed. With the element (54) in this first position, the flushing conduit (46) will not be occluded.

Abstract: A control device for a triple-plenum air conditioning apparatus having a by-pass air duct, a hot air duct and a cold air duct. A first shaft mounted through the by-pass and hot air ducts carries a first by-pass air damper blade and a hot air damper blade at right angles to each other. A second shaft mounted through the by-pass air duct and the cold air duct carries a second by-pass damper blade and a cold air damper blade at right angles to each other. The control device includes a first geneva link on the first shaft, a second geneva link on the second shaft and a third shaft carrying a drive plate with pins for independently actuating the geneva links and a geneva cam for holding one of the geneva links against rotation while the other is being independently actuated. Rotation of the third shaft through one hundred degrees results in rotation of each of the first and second shafts through ninety degrees.

Abstract: The present invention is directed to mechanical handling machinery and equipment or load handling devices (manipulators).The device of the invention comprises a housing accommodating a number of distributors made as spring-opposed directional control spool valves movable from an actuating member. One group of the control spool valves forms an angle with the longitudinal axis of the actuating member, while the other group has one arranged coaxially with the longitudinal axis of the actuating member, and the other valve is situated lengthwise of the axis.The actuating member has two articulately interconnected levers of which one is provided with a knob and a ring for cooperation with one of the control spool valves in the first group of the directional control spool valves.

Abstract: A manifold mounting pairs of relief valves in side-by-side clusters having a slide-rod interlock cooperating with swing-mounted clapper discs and operationally engaging handles connected thereto for selectively isolating one valve at a time from pressure in the manifold in preparation for its removal and replacement under pressure therefrom.

Abstract: A valve construction having a housing provided with a chamber and ports leading to the chamber and having an axially movable piston unit disposed in the chamber to interconnect certain of the ports together in relation to the axial position of the piston unit that is caused by a condition responsive device operatively associated with the piston unit, the piston unit comprising a plurality of pistons disposed in spaced parallel relation and being secured together to be axially moved in unison in the chamber under the influence of the condition responsive device.

Abstract: An apparatus for actuating an operating valve unit for winch comprising a casing, a first shaft fixedly supported within said casing, second and third shafts rotatably supported within said casing, said second and third shafts being operatively connected with a hook lever and a boom lever, respectively. Said valve unit includes six valves for operating a hook clutch, a hook brake, a boom clutch, a boom brake, a lifting clutch, and a lower clutch, respectively.First and second cams are slidably and rotatably mounted on said first shaft and a third cam is rotatably but not slidably mounted on said first shaft. Said first shaft is operatively connected with said second and third shafts, respectively, so as to selectively actuate said valves in response to operations of said hook lever and said boom lever.

Abstract: A hydraulic brake system with pilot actuation for the braking of a vehicle is disclosed. The brake system includes a service brake valve, a park brake valve and a retard brake valve. The hydraulic brake system further includes an additional brake valve including two separate spools slidably disposed within a valve body, each being responsive to pilot pressure from the above-disclosed valves. The first of the spools in the additional brake valve communicates pilot pressure from a fluid pressure source to the rear brakes of the vehicle and from the rear brakes to a fluid pressure reservoir or sump. The second spool communicates fluid from the fluid pressure source to the front brakes and from the front brakes to the fluid pressure reservoir. The first spool of the additional brake valve is also independently responsive to pilot pressure from at least one of the above disclosed valves which responsiveness allows for a variance in braking force between the front and rear brakes.

Abstract: A bypass valving fluid control arrangement for a fluid system including a fluid treatment device which permits the removal of the fluid treatment device from the system without interrupting system operation and wherein the bypass valving control comprises a single unitary structure having a single manual control means and valving operation is responsive to pressure conditions within the fluid control arrangement.

Abstract: A double plug shuttle valve having a pair of valve plugs slideably mounted within a hollow body. A tubular actuator operatively connected to the valve plugs permits fluid communication between a central chamber and two end chambers to allow either balanced or unbalanced operation by proper selection of the dimensions of the elements of the valve.

Abstract: A fluid control valve assembly comprises a pair of identical valves mounted on a manifold with connections to the controlled actuator and to the high and low pressure sides of a fluid circuit incorporating a pump or other source of high-pressure fluid. Each valve includes a reciprocating tappet directly connected to a conical valve head and spring biased into a closed position of the valve, with a portion of the tappet protruding from the valve body. Superimposed on the two protruding tappets is a rocking beam which may be pivoted into contact with either tappet by means of a handwheel engaged in a bracket. A threaded shaft affixed to the handwheel passes through a nut pivotally secured to the rocking beam, so that rotation of the handwheel in either sense will result in the depression of one of the two valve tappets and the opening of the valve associated therewith.

Abstract: A method and system for carrying out the method, relating to mixing of solutions, wherein the base liquid in a tank is circulated through an endless circuit while the chemical is gradually introduced into the circulating flow base liquid to achieve through mixing. A chemical is withdrawn under valve control into a measuring receptacle prior to mixing same with the base liquid. Provision is included for rinsing the chemical source container, the resulting rinse solution being automatically introduced into the tank, leaving the source container in condition to meet legal requirements for disposal. To simplify disposal of rinsed containers and discourage re-use thereof, a feature of the method and system involves means for collapsing the containers. A novel multiple valve assembly enables all features to be embodied in a simplified and condensed system.

Abstract: A pair of fluid valves are formed in a common valve body. Movable pistons in the respective valves are normally biased by the fluid pressure input to closed positions whereby button-like or rod-like extensions of the pistons protrude through a top wall of the valve body to urge a pivotal valve operator to a neutral centered position. By manually pivoting the operator against one or the other of the extensions the respective pistons may be moved to open the respective valves.

Abstract: A valving mechanism for an automatic filling machine for transferring liquid pre-measured doses to receptacles such as oral dispensers, nebulizer injectors, vials and hypodermic syringes. The automatic filling machine includes a piston type pump which is connected to a supply reservoir for the liquid and to an individual receptacle to be filled by flexible, compressible tubing. Alternately energized alternating current solenoids reciprocate a pivotally mounted lever which alternately closes one of the flexible tubes and opens the other to permit the piston pump to draw liquid from the reservoir and pump it to the receptacle. The valving mechanism includes two adjustable screws, one for each flexible tubing, to pre-compress each tube. Over-compression of the tubes is precluded by an audible warning afforded by the solenoids themselves.

Abstract: An operating device for winch control valves, featuring that, in a construction wherein a valve of a clutch for winding up a winch, a valve of a clutch for winding down the winch, and a valve of a brake can be operated by a single control lever to thus simplify the operation of the winch, the boss section of the primary lever linked with a spool of the valve for winding up the winch and the boss section of the secondary lever linked with a spool of the valve of the brake are put to interlocking rotation only at the time of rotation in the unitary direction, the boss section of the said secondary lever and the boss section of the tertiary lever linked with a spool of the valve for winding down the clutch are properly interlocked with each other only at the time of rotation in the unitary direction, a couple of positions as are confronted with each other on the both sides of the center of rotation of a rotator to be put to rotation either forward or backward by the operating lever are properly linked with the s

Abstract: A mixing faucet for sanitary installations comprising a sealed housing defining a mixing chamber and a water outlet, a mixing bushing having hot and cold outlet openings disposed radially in axial direction adjacent the mixing chamber and being mounted in the sealed housing, and a multistage pressure balanced control piston being displaceable within the mixing bushing and acting axially from an outside so as to open and close the water outlet. Two segment slides are positioned each between adjacent of three pistons of the control piston, the segments slides alternately opening and closing the outlet openings for the hot and cold water in the mixing busing, the hot and cold outlet openings discharging into the mixing chamber.

Abstract: The steering wheel controlled valve operator in a fluid power steering system, is mechanically held in a neutral position by centering springs associated with fluid pressure controlled reaction pistons yieldably resisting movement of the control valve by the valve operator. Check valves opened in response to suction pressure, conduct fluid in by-pass relation to the control valve between a servo motor chamber and a return fluid line, the control valve connecting both servo motor chambers to the return line in the neutral position.