Abstract: A fluid control valve includes a deformable conduit for fluid with a valve control port at a point of fluid entry to the conduit. The valve control port includes a spring-biased device for keeping the port closed to fluid in an unactuated valve state. A support element is disposed within the conduit downstream of the valve control port. The support element also permits fluid flow therethrough. A trigger mechanism is disposed within the conduit between the valve control port and the support element; the mechanism includes an elongated bar having a deformable irregularity. The bar extends from the support element to the port closing device, with the end of the bar contacting the port closing device with a low level of force in an unactuated state of the valve.

Abstract: A hydraulic mounting has a nozzle plate with a membrane separating a working chamber from an equalizing chamber and a ring channel connecting these chambers. A filler channel leads radially from the outside into this ring channel and makes it possible to fill the hydraulic mounting, without air bubbles, with hydraulic fluid. A closure member closes off the filler channel on the outside.

Abstract: A faucet includes a shut-off valve between its inlet connection and its spout, and a valve operator extending below the spout so as to be engageable by a user's hand when located below the spout to receive the water discharged therefrom. The valve operator comprises a stem passing through the spout and a latching device which latches the valve in the "on" position by one operation of the valve operator, and in the "off" position by the next operation.

Abstract: The device for delivering fluid to livestock comprises a plurality of demand actuated drinker units which can be actuated by animals. Each drinker unit is connected to a vertical conduit, and the upper end of the vertical conduits are connected to a horizontal conduit. Fluid is circulted from a reservoir through the horizontal conduit and back to the reservoir. Gravity causes fluid to flow downwardly through the vertical conduits to the drinker units, but the constant recirculation of fluid through the upper conduit prevents the fluid from remaining at rest and spoiling. The system includes a fresh water supply which can be used to inject fresh water into the system or for the purposes of flushing the system.

Abstract: Apparatus for controlling the discharge of fluent, particulate plastic material from a supply to a blending hopper comprises a delivery tube having a discharge orifice at its lower end that may be closed by a circular valve which seats against the delivery tube to close and seal the orifice. The valve is movable from its closed position to a fully open position in which a relatively large clearance exists between the discharge orifice and a body of material supported at its angle of repose on the valve. Material thus is able to cascade through the clearance to a receiving hopper whose weight is monitored by one or more load cells coupled to a microprocessor. When the weight of the receiving hopper increases to a selected value due to the delivery of material thereto, the valve is moved from its fully open position to a partially open position in which the aforementioned clearance is reduced substantially, thereby materially slowing the rate of discharge of material from the supply.

Abstract: A liquid storage tank having a feed port is provided with a float valve for opening and closing the same. The float valve includes a float member and a rod member having one end connected to the float member. The other end of the rod member is fitted into a valve seat, which is formed on the inner periphery of a feed pipe constituting the feed port, and is provided with a valve plug portion for opening and closing the valve seat. When the level of the liquid in the tank is lowered together with the float member, the rod member is tilted so that the valve plug portion is partially separated from the valve seat to open the feed port. When the float member is in a position at which the float member supports the rod member in a horizontal position, the valve plug portion is seated on the valve seat to close the feed port. The pressure of the supply of liquid acts on the valve plug portion to urge the valve seat portion against the valve seat.

Abstract: In a female coupling component (1, 2) which forms part of a quick coupling there is present a unit (12) so arranged as to be capable of longitudinal displacement in the longitudinal sense of the female coupling component. The unit supports at its first end a first sealing component (14) which is capable of interacting with a seat (1b) in the female coupling component. At its second end the unit supports a second sealing component (15) which is capable of interacting with a sleeve (7) so arranged as to be capable of longitudinal displacement in the female coupling component. The unit comprises an elongated hub component and extending from it wing-shaped elements (25) by means of which the unit which is capable of longitudinal displacement is centered in the female coupling component and between which the fluid passageways lead into the female coupling component.

Abstract: A normal directional flowing type water supply device comprising: a connector in a form of short pipe with threads at both ends, a leading hole and a ball with a diameter slightly larger than that of the leading hole in it, to be connected to a water supply pipe, and stops water outlet by means of the ball which can seal the leading hole by water pressure over it; the normal directional flowing faucet has an inlet path and an outlet path below the inlet path, a push rod in the inlet path for extending to the aforesaid water stopper to push away the ball so that water can flow into the inlet path, and a knob between the inlet and outlet paths to control opening and closing of the leading hole by rising and lowering a valve rod; and the instant opener, which is to be connected to outlet of the faucet, has a ball in it to control opening and closing of its leading hole, and a push rod to push the ball aside in order to open the leading hole for outflowing of water.

Abstract: Purge branch coupling for a main flexible hose, reinforced or not, sheathed or unsheathed, of the type having the shape of a tubular insert which is intended to co-operate with a closure piece of its proximal extremity and which is integral with the main hose by moulding coating of a splicing material, particularly comprised of plastic or elastomer material. According to this invention, the tubular insert forming the purge branch coupling comprises a plurality of openings provided in its tubular wall so that the coating of said junction material, which penetrates into said openings during moulding establishes linking bridges between the portions of said coating which envelope the insert, thus providing for the holding in position of said insert. Application for couplings in lines of water, air and fuel circuits in motor vehicles.

Abstract: An air outlet having a ball shaped valve member having a central passageway defined therefrom intermediated a convergent entrance and an exit, the transverse area of the entrance being at least 45% greater than the transverse area of the exit. The valve members is rotatable through 360.degree. and swayable through 60.degree.. A damper arrangement selectively actuable between a totally closed and a totally non-obstructive position relative to said passageway is described having damper actuator means and damper guide means coacting to effect a preselected location of said damper relative to said passageway in the valve member.

Abstract: A self-seating valve with compressive release is provided. The invention includes a tubular valve body which is capable of elastic axial compression by means of the compression of circumferential compression rings. A diametrical bar supports a longitudinal valve stem at the end of which is affixed a valve element adjacent to a valve seat. Upon the axial compression of the valve body, the valve stem is axially displaced thereby lifting the valve from the valve seat.

Abstract: A method and device for valving liquid flow through a conduit which avoids high pressure flow characteristics such as valve chatter due to turbulence and turbulence-enduced corrosion by spoiling the flow of liquid so as to break up the liquid front into diverse streams and thereafter closely regulating flow through the incipient stage to full flow stage.

Abstract: A plug for closing an opening in a container also allows connection of a pipe to the container without removal of the plug, thereby substantially reducing the risk of leakage of fluid from the container.

Abstract: A mini-regulator valve assembly for providing a continuous supply of fluid at a predetermined pressure from a source of high pressure fluid. The valve has a first member adapted to join with the fluid source and a second member disposed for movement relative to the first member, one of the members forming a valve seal and the other forming a sealing edge cooperating therewith. The valve is further provided with a first biasing spring, a second biasing spring and an actuator. The first biasing spring biasing the second valve member against the first valve member and the second biasing spring acting on the actuator such that when the second biasing spring moved inward, the actuator acts on the second valve member moving the valve seat and edge away from each other thereby opening the valve, the first spring in combination with the pressure of the fluid passing through the valve ending close to the valve as the pressure builds up and thereby obtaining a regulating affect.

Abstract: A spring loaded valve for use with a cryostat insert is provided for selectively directing liquid cryogen to the bottom or top of a supercoolable vessel. The spring loaded valve situated at the tip of the insert extends into a housing in the top of the supercoolable vessel. A slidably mounted sleeve extends inside a cryogen fill tube. The sleeve is spring loaded and when the valve is inserted in the housing the fill tube covers apertures in the sleeve allowing fluid to flow from the fill tube through the end of the housing past the valve head. When the spring loaded valve is partially retracted from the housing the holes in the sleeve are uncovered and liquid can flow from the fill tube to a passageway in the housing extending to the bottom of the supercoolable vessel. The valve closes the aperture leading to the upper portion of the vessel.

Abstract: A closing and filling unit having a piston valve (22) whose closure member (28) is provided with axial openings. A rotatable and slidable element (32) is provided for actuating the valve. Arrangements (35, 40, 41, 33, 36) are provided for utilizing the pressure of the fluid to force the element (32) into engagement with the piston (28). The device is adapted to be detachably fixed to the body of the valve by means of a screw-threaded boss through which extends an actuating rod (37) which is rigid with a piston (36) sliding in a chamber (33).

Abstract: A ball valve seat is provided which comprises two separate reinforcement members, preferably of metal, embedded in an annular resilient body. The interior of the resilient body defines at one end a part-hemispherical ball valve seat and at its other end, of greater wall thickness, an outlet controlled by the ball valve. One of the reinforcing members has a flared skirt extending into the narrower wall thickness end of the resilient body and a narrower neck located in the wider wall thickness end of the resilient body, where it is received in an annular groove in the second reinforcement member. A portion of the second reinforcement member extends within the wider wall thickness end of the resilient body radially of the first reinforcement member over its skirt portion.

Abstract: A valve especially designed for use in a prosthetic device such as an artificial limb wherein the limb stump is mounted within a mating socket provided by the prosthetic device and is firmly secured therein by vacuum sealing, the valve being is connected to vent the lower portion of the prosthesis socket when manually actuated. The valve includes a central core section of elastomeric material which is formed with a passageway therethrough for venting the prosthesis cavity and which is formed with an enlarged valve chamber and a valve set facing away from the prosthesis cavity. A valve member is mounted in the chamber and is moveable to and from the set to provide sealed and vented positions respectively. The movement of the valve is controlled by a finger engaging button which is in turn biased by elastomeric nodules to move the valve member to its seat thereby sealing the prosthesis chamber.

Abstract: A device for dispensing and spreading liquid material which includes a container mounted on a movable frame having a dispensing opening and valve assembly in the container and having roller and squeegee means mounted under the container for spreading the material after it has been dispensed.

Abstract: In order to make possible, with a valve having a sleeve (110) provided with a valve seat (112) and with a valve activating tube (118) which supports a spring-biased valve body (114) which can be tipped away from the valve seat (112), a high water flow rate even under low water pressure, it is proposed, instead of a support of the valve body (114) on the valve seat (112) during valve opening, which inhibits water flow and causes wear, as is the case with a valve which closes with water pressure, to provide the sleeve (110) in a valve which closes against the water pressure with an axial, annular shoulder (133), the diameter of which is larger than the diameter of the valve seat (112) and on which the frontal surface (162) of the tube (118) nearest the annular shoulder (133) is supported.

Abstract: An on/off valve, preferably of the ball type, with an anti-siphon feature. The valve has concentric opposite direction flow with open structured support elements to maintain the inlet tube properly positioned within the elongated housing. A cup-shaped poppet-type float valve prevents fluid from spraying out of air vents upon opening of the ball valve. The control valve is particularly adapted for indoor use.

Abstract: A valve mechanism for a livestock watering bowl. The valve mechanism is mounted in a water inlet line in the bowl and is adapted to be actuated by an animal to control the flow of water into the bowl. The valve mechanism includes a body provided with an inlet connected to the water line and having a central chamber connected through an inlet passage to the inlet. The inlet is adapted to be opened and closed by a valve member carried by a plunger that extends axially through the inlet passage and the central chamber and terminates in a button that projects outwardly from the opposite end of the body. The portion of the plunger located within the inlet passage has a non-circular cross section to provide a clearance between that portion of the plunger and the inlet passage, while the portion of the plunger located within the central chamber is formed with a laterally extending shoulder.

Abstract: A manually operable valve apparatus capable of temporary attachment at one end directly to a refrigeration apparatus which is to be charged with a pressurized refrigerant, such as from a portable source of refrigerant, the present valve apparatus can be attached at its opposite end to a hose or the like to communicate with a pressurized source of refrigerant. The valve comprises an internal spring-loaded valving element having pins at each end which each contact a needle element at opposite ends of said valving element. One of the needle elements is directly biased by a cam twisted by finger manipulation against one of the pins of the valving element to displace against spring pressure the other pin, thereby displacing the other needle element to allow pressurized refrigerant to flow from the refrigerant source through the valve apparatus.

Abstract: A pressure fluid operated limit switch, particularly for a device for controlling an adjusting element in dependence upon a control value and a reference value. The limit switch includes a housing formed with a recess in which a spring-biased valve member is positioned. The valve member normally abuts against a valve seat formed by a shoulder in the switch housing is at times moved away from that seat against the force of the spring in response to a condition of the adjusting element with which the limit switch is mechanically connected. In order to ensure rapid movement of the valve member away from its seat and thus preventing throttling of the pressure fluid when the switch is in its open position the valve member is provided with the actuating element rigidly connected thereto and carrying at its free end an axially slidable sleeve biased by a spring which is clamped between that sleeve and the valve member.

Abstract: A device for releasing the flow of water in a water faucet including switching means adapted to be actuated by the movement of the hands to be washed into the area under the discharge head of the water faucet. To install the device in already existing water faucets in a simple and safe manner, the invention provides for the switching device to be disposed in a hollow cylindrical casing having an inlet and an outlet opening and being connectible in the region of the inlet opening with the discharge head of the water faucet. The switching device is in the form of a switch valve comprising a valve body seated in a valve seat on the side facing the outlet opening. The valve body is adapted to be lifted off the valve seat by the action of an operating lever projecting from the discharge opening of the casing.

Abstract: A vapor introduction system having an internal combustion engine which has an exhaust gas blow by hose connected to the intake of the engine. A fitting having a flexible hose is mounted on the cap of the windshield wiper fluid reservoir, with the hose extended to the bottom of the reservoir. A T-shaped coupling having an adjustable valve is connected with the hose to the fitting. The valve has a stem threaded into the coupling and a cone-shaped cap operable to adjust the size of the annular passage through which vapors and air flow from the windshield washer reservoir to the intake of the engine.

Abstract: A vent valve for steam radiators fired by intermittent furnaces is disclosed. The valve includes a conduit with two portions. Two blocking rods form constricted areas within the two portions to throttle air escaping from the radiator.

Abstract: An improved carbonated beverage mixing and dispensing valve (A) is illustrated as including a housing (10) having an entrance port (16) for the admission of carbonated mixing water and valve outlets (22a) for admitting flavored syrups. A valve (B) is carried in the entrance port for controlling the flow of carbonated water which includes an adjustable metering rod (20) carried in an internal bore (104a) of valve stem (104) which may be adjusted externally of housing (10). Flow of syrup is controlled through valve outlet (22a) by means of flow control device (C) which includes a raised ridge (44a) and valve plunger (46) between which a section of valve tubing (22) is pinched off intermediate a valve inlet (30a) and valve outlet (22a). A single operator lever (92) operates both the valve (B) and flow control device (C) in a single action.

Abstract: A flushing device comprising, a housing having an inlet, an outlet, a cavity communicating between the inlet and outlet and defining an annular valve seat, and an opening communicating with the cavity, with the valve seat facing away from the opening. The device has an elastic valve element received in the cavity with an annular valve portion sealingly engaged against the seat. The valve element has a stem extending through the opening and the stem sealingly engages against the portion of the housing defining the opening. The valve element has a passageway extending therethrough and communicating between the inlet and the outlet, and the device has a relatively large channel communicating between the inlet and seat and between the seat and outlet. The device has an insert extending across the passageway and having a relatively small bore.

Abstract: A water faucet adapted to be connected to a water supply pipe comprising a soft elastic sleeve having on the inner wall thereof an upper flanged ring and a lower flanged ring which functions as a valve seat; a ball placed within the sleeve for remotely blocking the valve seat; a clamping tube disposed between a retainer ring and the sleeve; a drain pipe connected to the lower section of the clamping tube having therein a cover block comprising a cylindrical body portion and a perforated upper end plate, the interior surface of the drain pipe and cover block being provided with projections and guide teeth; and an operating lever in the form of a cylinder having its upper end extending through the cover block and the lower end extending out of the drain pipe, a rotating tube being attached to the intermediate section of the cylinder, the rotating tube having blocks provided on its circumference which are guided by the projections and guide teeth to maintain the operating lever in a raised or lowered position so

Abstract: A drain valve assembly is mounted in the bottom of a fuel tank (10) to allow draining of condensate. The tank (10) is drained of fluid by the use of a tool (27) pushed upward against the piston (18) of the valve assembly separating it from its seat (15) in the valve housing (12) allowing liquid which has entered the housing (12) from the tank (10) through openings (16 ) to exit around the periphery of the unseated valve. If the valve assembly base is struck by lightning, a blast pressure occurs that can drive the poppet of a standard valve open allowing the electrical energy to enter the tank (10) causing a potential explosion. With the present valve assembly the pressure is allowed to pass through passage (20) in the piston (18) to apply a closing force on the surfaces (21, 22) and the inner end of the piston (18) which is greater than the opening force due to the area difference and the valve assembly remains closed.

Abstract: A valve body has a larger bore and a smaller bore defining a transverse valve seat; and a plug closes the larger bore, the inner end confronting the valve seat and defining a radially enlarged valve chamber. The valve closure member comprises an enlarged head seating on the valve seat and an integral stem projecting from the discharge end of the valve. The plug has an axial recess opening toward the valve seat; and a control member comprises an enlarged head and an integral stem. A helical biasing spring is received over the control member stem; and the stem and spring are received within the plug recess to permit free axial movement over the valve closure member and free compression and expansion of the spring. The control member, which engages the closure member head to seat the closure member, has small lateral clearance with associated parts to severely restrict lateral movement of the control member and of the spring.

Abstract: A watering or drinking device for small animals includes a drinking valve operable by an animal and a hanger bracket attacheable anywhere on a wire cage. The device includes an actuating pin held within the valve cavity by a flexible retainer plug. The lower portion of the retainer plug is seated on a shoulder provided in the valve cavity and prevents liquid to pass through the valve. Lateral pivotal movement or axial movement of the actuating pin which is seated on a second shoulder provided in the valve cavity and in contact with the retainer plug, will cause the lower portion of the retainer plug to be unseated from the said shoulder and allow liquid to pass through the valve. The wing clip of the valve-bracket has a vertical slit and allows the device to fit either between two vertical wires of a wire cage or over one vertical wire of a wire cage. The wing clip includes horizontal recesses to embrace a horizontal wire of a wire cage to hold the valve-bracket securely in a desired position on a wire cage.

Abstract: A cooking utensil for separating liquid gravy from fats and oil is provided, which utensil has a receptacle in which is placed the mixture of gravy with fats and oil. The bottom of the receptacle has an elongated tubular opening in which a valve is positioned. The liquid gravy is removed from the mixture by gravity through the tubular opening, and the rate of outflow is controlled by a valve. The valve has a flexible closure element which when positioned within the cylindrical portion of the opening closes off the flow of liquid, and when positioned in the truncated conically-shaped outlet of the tubular opening controls the rate of outflow.

Abstract: A vent valve (10) is disclosed. The valve (10) is comprised of a conduit (12), a cap (14), a nut (16) a bolt (18) and a coupling (20). The coupling (20) connects with a conduit (12) to a radiator (12). A pair of slots (44) in the nut (16) form a vent passage for steam and air to escape the valve (10).

Abstract: A valved vent for a liquid drainage system comprising, a receptacle having a chamber to receive liquid, and a filter pervious to air and substantially impervious to the passage of bacteria, with the filter communicating with the atmosphere. The vent has a valve communicating between an upper portion of the chamber and the filter. The valve may be selectively opened to permit passage of air between the atmosphere and the chamber through the filter, and may be selectively closed to prevent passage of liquid from the chamber against the filter.

Abstract: A control valve for injecting dilute concentrations of liquid additives to a fluid flow in which a housing (10) is connected to a core member (12) and a piston valve (18) that is slidingly maintained within the core member is controlled in response to the movement of a shut-off member (14) pivotally connected to the housing.

Abstract: A lubricant fitting (10) for connection to a valve (V) in which the fitting bore (20) has a pair of spaced apart inner (44) and outer (26) annular shoulders therein. A pair of spaced apart inner (52) and outer (54) seating elements are positioned within the bore (20) for movement between a normal seated position and an unseated position relative to their respective shoulders (44, 26) to thereby either prevent or allow communication between the valve interior and the atmosphere. The outer seating element (54) moves to the seated position independently of the inner seating element (52) so that even if the inner seating element (52) is sufficiently contaminated so that an effective seal cannot be formed, the outer seating element (54) will still move to form an effective seal and thereby isolate the valve interior from the atmosphere.

Abstract: An indwelling urethral catheter (10) includes a flexible catheter drainage shaft (18) defining a drainage canal with a valve (32) mounted therein. The catheter is mounted in a urethral canal by means of a bladder-located Foley-type balloon (22) and an inflatable balloon lead shaft (24) which extends along the catheter drainage shaft. The valve (32) is normally biased to a closed position, but is actuatable to an open position by external hand manipulation of a penis in which the catheter is implanted. The catheter (10) also includes a discardable sleeve (12) which is severably attached to the distal end of the catheter (10), on the proximal side of the balloon (22). After insertion into the urethra, the balloon (22), and its lead shaft (24) are inflated through a "basketball" type contraction valve (44).

Abstract: A fluid valve having a generally cylindrical, hollow body provided with aligned openings in the opposed end walls thereof, one of the openings shiftably receiving a valve member and the other opening adapted to be coupled to a tube leading to a vessel to be pressurized. A coil spring in the body biases the valve member to a closed position against a valve seat carried by the adjacent end wall, and the valve member has a cap provided with a skirt surrounding the sidewall of the body so that the valve member can be opened by manually depressing the cap relative to the body. A second valve is coupled with the body so that a fluid under pressure can be directed into the body and thereby a vessel to be pressurized when the tube leading to the vessel is coupled to the other opening of the body. The body is formed in two parts to facilitate manufacture and assembly.

Abstract: A pneumatic sensor for connection to the sensor port of a bleed-pressure piloted valve and which is responsive to engagement by an article the presence of which is to be detected to block air from escaping said sensor port. The sensor includes a body having a bore and a target slightly smaller than the bore disposed in the bore and having an aperture the axis of which extends transversely to that of the bore. A tube connected to the sensing port and slightly smaller than the aperture extends through the body and into the aperture. The tube has an opening disposed in the aperture and extending generally toward the end of the target to be engaged by the article. The target is movable between an extended position and a retracted position in which the target blocks the opening, air pressure biasing the target to its extended position and the surface of the target defining the aperture being arcuate.

Abstract: A vent for a liquid drainage system comprising, a conduit having a lumen for drainage of liquid, and a filter pervious to air and substantially impervious to the passage of bacteria, with the filter communicating with the atmosphere. The vent has a valve assembly communicating between the lumen and the filter, with the valve assembly being movable between a first closed position to prevent passage of liquid from the lumen against the filter, and a second open position to permit passage of air between the atmosphere and the lumen through the filter.

Abstract: A nipple operated animal liquid valve having a valve body defining a passage through which liquid passes to be dispensed by the valve, and a passage closure selectively operable to close the passage, the closure having a nipple which may be operated by an animal to operate the valve.

Abstract: A wall hydrant is described herein comprising a hollow tube having an inlet end and outlet end. The inlet end is adapted to be connected to a source of fluid under pressure and has a valve means adjacent its inlet end. The valve means comprises a cylindrical body portion having an inward end terminating in an arcuate nose portion. A plurality of spaced apart tab elements extend outwardly from the body portion and bear against the inward surface of the hollow tube. A valve seat portion is provided in the inlet end of the tube. A valve control rod is connected to the valve means and extends through the opposite end of the hollow tube to permit remote control of the valve means and to selectively permit the valve means to slide inwardly to a closed position on said tabs, and outwardly to an open position.

Abstract: A steam trap has a bimetallic control element provided on the prepressure side and a locking part which is biased by the prepressure in the opening direction and which is actuated by the bimetallic control element. The bimetallic control element is provided with at least one bimetallic snap disk and the valve seat is stroke-movably positioned, whereby the maximum stroke path of the valve seat is only a part of the operating stroke of the locking part.

Abstract: A suspension for a replaceable hydraulically operable tool attachment on the tool holder excavator or crane comprises a fork member pivoted to the tool holder by pivot pins which contain bores to establish hydraulic communication between fluid supply and discharge passages in the tool holder and associated passages in the fork member leading to the tool.

Abstract: A valve intended in particular for closing a container of fluid under pressure, more particularly gas in the liquid and/or gaseous phase, which comprises a seat, a movable sealing valve member mounted so as to bear elastically against the said seat, an elastic element forming a spring and having a fixed portion, and another movable portion supporting the said movable valve member, is characterized in that the elastic element is a spring having a shape permitting axial and radial retraction of the movable valve member in relation to the seat.

Abstract: A watering or drinking device for small animals includes a drinking valve member actuatable by the animal, an adjustable flow control valve member responsive to actuation of the drinking valve member to limit maximum flow from the device, and a mechanism for adjusting the position of the flow control valve member to fully closed, partially open, or fully open positions. The device includes upper and lower threadedly interconnected hollow fittings having a resilient, compressible apertured diaphragm entrapped in a space therebetween. The upper and lower fittings include upper and lower valve seats, respectively, cooperating with the upper and lower valve members, respectively and the lower valve member has an actuator stem extending downwardly through the hollow lower fitting.

Abstract: In a poultry watering system having a float-controlled valve for maintaining a desired water level in a trough, leakage through the valve from an overhead supply line, which may occur when the water supply is cut off is effectively prevented without reducing sensitivity of the float by the provision of spring means located within the interior of a valve housing and acting on the end of the float stem.

Abstract: A control valve is provided which is adapted to be connected between a pressure source, such as vacuum pump, and a pressure vessel so as to control the pressure in the vessel. The valve comprises a housing having a longitudinal bore therethrough which is connected between the pump and vessel, and a transversely movable valve body which controls the air flow through an air inlet in the housing. The valve body includes cylindrical and conical shaped portions which cooperates with reciprocally shaped portions of the housing to provide flow control. A filter disposed in the air inlet filters out foreign matter in the air. The bottom end of the valve body screws into the valve housing control knob formed integrally with the valve body controls translation of the valve body and hence opening and closing of the valve.