Abstract: An infusion pipe capable of achieving a flow rate higher or the same as that of a conventional product, and of easily joining to a cannula attached to an eyeball. The infusion pipe of the present invention is used in an ophthalmic operation with the infusion pipe joined to a cannula attached to an eyeball, and includes an insertion part to be inserted, at the time of joining to the cannula, inside a cannula piercing part, which is a part of the cannula for piercing the eyeball. A cross-section of the insertion part is an arc shape from which a part of a circle is cut out.

Abstract: This reservoir tank is provided with a reservoir body formed in the shape of a hollow box inside which a hydraulic fluid is stored, and is connected to a vehicle master cylinder in such a way that brake fluid flows into and out of the same. The reservoir body is provided with a top plate portion formed in the shape of a plate. A flow path portion having one or a plurality of flow paths formed in a serpentine fashion and opening downward in a vertical direction is provided in a protruding manner on an inner wall surface of the top plate portion, and a slit is provided on a downstream side of the flow path.

Abstract: A valve core with a flow-through rod, has a valve seat, a valve shell, a certain valve plate, a movable valve plate, a valve plate, a connecting piece, a flow penetrating rod, a blocking piece and a detent structure, wherein the detent structure is used for stopping reciprocating actuation of the blocking piece, so that the water pressure forms a difference change; and the valve piece is elastically driven to change whether water flows out outwards, and the connecting piece is connected with the movable valve piece, so that the movable valve piece can be locked to rotate, and the water flowing out of the outside can be adjusted and controlled.

Abstract: A valve assembly is provided, the valve assembly comprising a valve housing; an inlet for fluid entering the valve housing; an outlet for fluid leaving the valve housing; a flow control assembly disposed within the valve housing between the inlet and the outlet, whereby fluid entering the valve housing is caused to flow through the flow control assembly, the flow control assembly comprising a cage having apertures therethrough to provide passage for fluid passing from the inlet to the outlet; a closure assembly having a first closure member disposed within the cage and moveable with respect to the cage between a first closed position, in which the first closure member closes the innermost end of all of the apertures in the cage, and a second open position, in which the innermost end of all the apertures in the cage are open; and a second closure member disposed outside the cage and moveable with respect to the cage between a first closed position, in which the second closure member closes the outermost end of

Abstract: A fluid control valve for high pressure surges, that has a controlled pressure drop box inside, arranged on a block seat and through whose core a cylindrical plug can be moved. The box is formed by a number of disks grooved on both sides, fluid flows through the grooves. The grooves are arranged in a spiral, curved clockwise or counterclockwise and crossways to the grooves of the adjacent disks, forming a number of chambers at the intersections between the contact faces of two side-by-side disks. A dynamic mixture of the incoming fluid veins through each groove is produced in each of the chambers, with the ensuing creation of local turbulence and loss in kinetic energy as heat prior to evacuation through the protruding course of the outlet grooves. The successive chambers in the course of the grooves are arranged in tiered annular spaces of gradual and controlled pressure loss.

Abstract: In accordance with the present invention, there is provided is a fluid control valve configured to attenuate acoustic resonance generated by a fluid flow. The fluid control valve includes a valve body defining a fluid passageway. A pair of seat rings are coupled to the valve body, with each seat ring defining an opening disposed about the fluid passageway. Each seat ring includes a plurality of vortex generators disposed about the radial periphery thereof for generating streamwise vorticies which suppress acoustic resonance.

Abstract: An apparatus, system, and method are disclosed for optimizing a valve orifice shape. According to one representative embodiment, a method includes determining a specified relationship between a valve position and an output characteristic, and determining an orifice profile. The method also includes determining a relationship of an orifice area to the output characteristic. Further, the method includes shaping an orifice in a valve based on the orifice profile and the specified relationship between the valve position and the output characteristic. According to the method, the valve should approximately exhibit the specified relationship.

Abstract: The regulator comprises at least a cylinder (2) with a fluid inlet connector (1) for receiving fluid at an inlet pressure and a fluid outlet connector (4) for delivering fluid, at least one chamber (3), a rod (5) in said cylinder with one side submitted to the inlet pressure and the other side submitted to the outlet pressure generating a net force counter-balanced by at least one spring means (7) acting on one side of said rod (5) against said inlet pressure, wherein a fluidic pathway is formed between said rod (5) and said cylinder (2) as the major fluidic resistance of the device, wherein a change of the inlet pressure induces a move of the rod along the axis of the cylinder thereby modifying the fluidic resistance of said fluidic pathway, wherein the fluidic resistance of said pathway varies with the applied pressure at the inlet in a predefined range of pressure, inducing a regulated flow rate in the considered range of pressure.

Abstract: A flow control device typically for protecting a seal (20) in a valve, wherein a body portion (5) has an orifice (8) allowing fluid flow, and the valve has a control portion (10) to allow and restrict fluid flow through the orifice. The flow control device has a fluid flow controller (30) between the body portion and the control portion in the form of at least one annular ring (35), disposed in a recess in one of the body portion and the control portion (10). The fluid flow controller (30) defines a leak path through the device that is opened and closed by a pressure differential acting across the annular member. Typically the application of a pressure differential across the fluid flow controller moves the ring(s) to one end of the recess and reduces the cross sectional area of the leak path available to the fluid, thereby diffusing the fluid flow through the orifice (8).

Abstract: A non-adjustable water pressure and flow speed regulating flushing system includes a valve member adapted for sealedly disposing between the water inlet and outlet to control water flowing from water inlet to outlet through the water chamber, a relief valve disposed within the water chamber for controlling the water flowing from water chamber to water outlet, and a flow speed regulation arrangement which includes an elongated bleed channel for controlling a water pressure between the water inlet and water chamber, so as to regulate a flow speed of the water entering into the water chamber through the bleed channel in a non-adjustable manner.

Abstract: A pressure control valve device with at least one inlet area and first and second outlet areas which can be connected by two poppet valves. A flow guide device (21), with inflow and outflow areas (22, 23) for guiding the fluid flowing from the inlet area in a defined manner in the direction of the second poppet valve, is located upstream of the second poppet valve, between the first and second outlet areas. The fluid in the flow guide device (21) passes in the area between the inflow and outflow areas (22, 23) through a plurality of channel areas distributed around the periphery of the flow guide device (21) and separated from one another, which are shaped at least approximately helically and impart an at least approximately vortex-like flow pattern to the fluid flowing in the direction of the second poppet valve downstream of the outflow area (23).

Abstract: Valves comprise a valve body having a gallery coupled to an inlet and an outlet to facilitate a fluid flow therethrough. A plug is movably disposed within the valve body and a seat ring assembly may be coupled to the outlet of the valve body. At least one circular motion inducement feature is positioned in a portion of the valve body, the seat ring assembly, or both. The at least one circular inducement feature is configured to induce a circular motion in a fluid flow through the valve. Methods of creating a circular flow in a fluid flowing through a valve are also disclosed.

Abstract: A valve system is provided including a valve seat, an outlet passage and a stop valve. The valve seat has a crenulated portion. The crenulated portion has an annular recess and a plurality of teeth that are separated by a plurality of circumferential gaps. At least one of the teeth has an angled surface that borders between one of the plurality of circumferential gaps and the respective one of the plurality of teeth. The angled surface is oriented at an angle with respect to an axis that extends radially outwardly from a central axis of the valve seat. The outlet passage is located downstream of the valve seat for directing flow out of the valve assembly. The stop valve is located within the annular recess of the crenulated portion.

Abstract: A stackable noise attenuating disk includes an inner perimeter edge and an outer perimeter edge. A plurality of inlet passages is disposed along the inner perimeter edge and a plurality of outlet passages is disposed along the outer perimeter edge. The plurality of outlet passages includes a plurality of first outlet passages and a plurality of second outlet passages. Each of the plurality of first outlet passages have a first width and each of the plurality of second outlet passages have a second width that is greater than the first width. Fluid entering the inlet passages passes through a plenum section of adjacent disks to exit through the first and second outlet passages. The first outlet passages and second outlet passages cooperate to disperse the noise peak frequencies of fluid exiting the plurality of outlet passages, thereby reducing the overall noise level of fluid exiting the plurality of outlet passages.

Abstract: A variable pressure reducing device includes a hollow housing body formed with an inlet opening, an outlet opening spaced apart from the inlet opening, and an inner wall surface. The variable pressure reducing device further includes an intake tube that extends into the housing body from the inlet opening. The intake tube is formed with an inlet channel and is further formed with an outer tube surface that cooperates with the inner wall surface to form an outlet channel in fluid communication with the outlet opening. The variable pressure reducing device also includes a redirection structure movably mounted in the housing body and movable relative to the intake tube between a redirecting state and a sealing state.

Abstract: An expansion valve of the present invention has a structure which integrates a refrigerant flow divider. The expansion valve includes a refrigerant flow dividing chamber 6 on the downstream side of a first throttle 10. Flow dividing tubes 12 are connected to the refrigerant flow dividing chamber 6. In the expansion valve, refrigerant which has passed through the first throttle 10 is sprayed into the refrigerant flow dividing chamber 6, so that the flow dividing characteristic of the refrigerant is improved. Also, due to an enlargement of the passage in the refrigerant flow dividing chamber 6, the ejection energy of a flow of the refrigerant ejected from the first throttle 10 is dispersed, whereby a discontinuous refrigerant flow noise is reduced.

Abstract: A fill valve for a toilet tank includes a multi-piece shank assembly. The shank assembly includes a first hollow member coupled with a second hollow member using a snap joint. The first hollow member has a tortuous outer surface, which together with the second hollow member forms a plurality of flow paths. The flow paths are configured to reduce water noise. The first and second hollow members are provided separately, resulting in simplified molding process and improved assembly automation.

Abstract: There is provided, in one embodiment, a ball valve for regulating the flow of petroleum fluids therethrough. The ball valve is capable of transitioning between an open and a closed position. The ball valve includes in one embodiment a hydraulic piston, containment union, ported stem, containment cage and drag plunger, and is adapted to regulate the flow of fluid northward through the valve. A ball and seat should be positioned above these components, so that the hydraulic piston may extend therethrough. More specifically, during a pump downstroke, fluid enters the drag plunger, moves northward through the containment cage and into the interior of the ported stem, exits the interior of the ported stem and enters a plurality of angled veins, which impart cyclonic motion on fluid passing northward therethrough, assisting in the removal of debris. Also during the downstroke, a pedestal portion of the hydraulic unseats the ball from the seat.

Abstract: An expansion valve includes a valve body 1. The valve body 1 includes a first throttle 5 and a second throttle 6 arranged downstream from the first throttle 5. The second throttle 6 includes an outer surface of the second valve portion 16 and an inner surface of the second valve hole 13. A helical groove or a linear groove is formed in the outer surface of the second valve portion 16 or the inner surface of the second valve hole 13. Further, at least either one of the outer surface of the second valve portion 16 and the inner surface of the second valve hole 13 is tapered toward a distal end of a valve member 4.

Abstract: A coupling is provided preferably for a vortex valve for use on an outlet pipe in a sewerage system. The coupling comprises an outer component for insertion into a bore of a pipe, and an inner component which is inserted into the outer component, ramp means being provided between the two components, whereby the outer component is expanded to seal against the bore when the inner component is inserted into the outer component so as to engage the second ramp portion. The ramp means comprise first and second portions of different inclinations. The vortex valve has a circumferential inlet which is adjustable.

Abstract: An air driven diaphragm pump includes an performance control actuator having a housing with opposed air chambers. The pump includes pump chambers facing the air chambers and pump diaphragms extending between each air chamber and each pump chamber, respectively. The actuator further includes an air valve, an intake to the air valve and an engagement. The intake includes an intake passage and a performance control intake adjuster rotatably mounted. The intake adjuster has a helical channel and a closure element extending adjustably into the intake passage. The engagement engages the helical channel for control of the intake. The helical channel has varied pitch to provide a nonlinear relationship between rotation and axial advancement of the intake adjuster. The nonlinear relationship gives flow rate proportional to the angular rotation of the intake adjuster.

Abstract: Trim disk assemblies for use in fluid flow control devices include a first disk and a second disk. An elongated void is formed in a surface of each of the first disk and the second disk. The second disk is aligned with the first disk to provide fluid communication between the void of the first disk and the void of the second disk, the void of the first disk being offset or staggered from the void of the second disk. The void of the first disk and the void of the second disk at least partially define a fluid passageway having a cross-sectional area characterized by increases and decreases in cross-sectional area, which define an expansion/contraction mechanism of the fluid passageway.

Abstract: An irrigation emitter is provided for delivering irrigation water from a water supply conduit, such as an irrigation supply tube, pipe, or other water supply apparatus, at a low volume or drip-like flow rate. The emitter operates generally through the use of a relatively long flow channel that causes a pressure reduction between the water supply conduit and an emitter outlet. The emitter includes an inlet component for tapping a portion of the water flow from the water supply conduit and, when the water pressure is above a predetermined minimum level, directing the flow to and through the flow channel for subsequent discharge to a desired location. The emitter also may regulate to accommodate for changes in supply pressure. The emitter also may include automatic flushing to dislodge debris trapped within the emitter.

Abstract: Apparatus and a control system for monitoring (preferably digitally) and/or controlling pressure to a pneumatic load such as a proportional fluid control valve and using a measurement input from a fluid measurement device that responds to a flow rate, the liquid measurement input being used to control the pressure to the pneumatic load so that pneumatic load may be increased or decreased (to proportionally open or close the pneumatic valve) to change the flow rate of the fluid to a desired rate. The pneumatic load can also be adjusted (to proportionally open or close the pneumatic valve) to accommodate changes in temperature and viscosity of a fluid.

Abstract: An expansion valve includes a valve body 1. The valve body 1 includes a first throttle 5 and a second throttle 6 arranged downstream from the first throttle 5. The second throttle 6 includes an outer surface of the second valve portion 16 and an inner surface of the second valve hole 13. A helical groove or a linear groove is formed in the outer surface of the second valve portion 16 or the inner surface of the second valve hole 13. Further, at least either one of the outer surface of the second valve portion 16 and the inner surface of the second valve hole 13 is tapered toward a distal end of a valve member 4.

Abstract: A regulator comprises a body including an inflow line, an outflow line, and a buffer space, the buffer space being provided between the inflow line and the outflow line, and a switch for opening and closing a flow path of a fluid flowing from the inflow line to the buffer space. The switch comprises a seat member including an inlet for receiving the fluid from the inflow line, and an outlet for supplying the fluid received through the inlet to the buffer space, the seat member being disposed in the flow path and a movable cutoff member for opening and closing the inlet, the cutoff member being inserted into the seat member, wherein the outlet is configured for allowing the fluid to flow in one direction along an outer sidewall of the seat member.

Abstract: A valve incorporates a device causing turbulents in the water stream just before passing over the turbine fins of the flow sensor. The device actually increases the Reynolds number or turbulence of the water stream increasing the contact of the water on the turbine. This causes the turbine to rotate more efficiently for the given flow volume passing over the flow measuring device. The improved efficiency results in better accuracy and performance over the entire flow range. In one embodiment the turbulent device forces the flow stream to rotate counter clockwise and hit the turbine fins causing higher force which makes the turbine turn more efficiently. The turbine is designed such that the major portion of the fin surface area is perpendicular to the turbulent flow stream. This opposed direction causes more force to be placed on the turbine fin by the water stream.

Abstract: A closing body is mounted in an axially displaceable manner in a bore of a fluidic valve to control a pressure medium flowing via the valve. The closing body has a sealing section, interacting with a seating edge of valve, and a guide section which serves to guide the valve cone in the bore. The guide section is provided with recesses which allow an overflow of pressure medium between the two sides of the closing body. To reduce costs of production, the guide section of the closing body is of cylindrical form and its surface is provided with at least one helical groove which leads from one side of the guide section to its other side. The closing body is useful in particular in constant pressure valves for controlling fluid pressure medium. The sealing section of the closing body is normally of conical form.

Abstract: Presented is a flow metering valve that can precisely and accurately regulate the volume of the fluid-flow through entire range of measured flows. The valve comprises tubular body and moving stem in it. One end portion designated as a leading has threadely engaged stem and body. Another portion designated as a regulating has body with the stem extended to fill the tubular space longitudinally separating inlet and outlet ports. At least one of the surfaces—the inner of the body or the outer of the stem—is threaded and have their threads truncated by tapering truncation from the crest to the root. The truncated thread forms channel having cross-section tapering from one port to the other. The axially moving stem gradually changes the cross-section of the channel providing variable flow communication between the two ports. The fluid flow changes proportionally to the cross-section of the formed channel. The valve provides very fine regulation of the flow within four orders of magnitude.

Abstract: A fuel system having an ecology valve controlling liquid flow through a retention passage when pressurized liquid is passed through the valve is presented. The retention passage winds between the valve outlet and a cavity such that no matter which way the valve is oriented gravity alone is unable to drain liquid from the cavity to the outlet. The ecology valve serves to suction fuel from fuel nozzle passages upon engine shutdown. Fuel is temporarily stored in the cavity and the retention passage. The ecology valve also provides a fuel splitting function for providing a port geometry determined split between fuel nozzles in the fuel system.

Abstract: A stem for a watering nipple for use in supplying water to poultry is provided. At least a portion of the stem is hollow and formed of coiled material in a manner similar to that of a coiled spring such that the stem has a number of turns and minuscule gaps provided between adjacent turns. Upon actuation of the nipple, a water-tight seal is broken such that a portion of the water is directed to flow through the hollow interior of the stem, and preferably directly into the mouth of the poultry. Some water, though, will flow along the outer surface of the stem. Where the coiled material is provided, this water will either be drawn into the hollow interior of the stem through the minuscule gaps, or this water will adhere to the outer surfaces of the stem to attract and allow poultry to drink the water thereon.

Abstract: Closing bodies serve to control a pressure medium flow flowing via a fluidic valve. The closing body is mounted in an axially displaceable manner in a bore of the valve. It has a sealing section, interacting with a seating edge of the valve, and a guide section which serves to guide the valve cone in the bore. The guide section is provided with recesses which allow an overflow of pressure medium between the two sides of the closing body. The production of such closing bodies is expensive. In order to produce such closing bodies in a more cost-effective manner, the guide section of the closing body is of cylindrical form and its surface is provided with at least one helical groove which leads from the one side of the guide section to its other side. The closing bodies are used in particular in constant pressure valves for controlling fluid pressure medium. The sealing section of the closing body is normally of conical form.

Abstract: A hydraulic control circuit, comprising a control line connected to a device to be controlled by fluid pressure in the control line; a time-out valve on the control line, the time-out valve having a time-out period during which time-out period operation of the time-out valve is delayed after actuation of the time-out valve; a pump connected to the control line for pressurizing the control line with fluid; and an arming valve operated by pressure on an arming line connected to the control line and the arming valve being connected to the time-out valve to reduce the time-out period in response to pressure on the control line.

Abstract: The invention provides a stem for a watering nipple for use in supplying water to poultry. The stem is hollow and formed of coiled material in a manner similar to that of a coiled spring such that the stem has a number of turns and minuscule gaps provided between adjacent turns. Upon actuation of the nipple, a water-tight seal is broken such that a majority of the water is directed to flow within the stem and directly into the mouth of the poultry. Some water, though, will flow along the outer surface of the stem. This water will either be drawn into the stem through the minuscule gaps, such that it will flow directly into the poultry's mouth, or this water will adhere to the outer surfaces of the stem to attract poultry and allow poultry to drink the water thereon.

Abstract: A pilot operated valve has a main poppet that selectively controls bidirectional flow of fluid between two ports in response to pressure in a control chamber on one side of the main poppet. The main poppet has a pilot orifice that is opened and closed by a pilot poppet. A unique mechanism is provided to compensate for variation of a pressure differential on opposite sides of the pilot orifice. This mechanism has a pair of annular end members between which extends a spring formed by a plurality of helices. Multiple passages with check valves extend through the main poppet to communicate the greatest pressure among the two ports to the control chamber and the lowest pressure among the two ports to the side of the pilot orifice that is opposite the control chamber.

Abstract: The invention provides a valve that one may use to finely adjust the amount of fluid that flows to a device such as a portable gas burner. The valve includes a receiver through which fluid flows when the valve is open, a metering groove operable to form a metering passage in the receiver to limit the flow of fluid through the receiver, and a stem positionable relative to the receiver to form the metering passage from different portions of the metering groove to adjust the amount of fluid that may flow through the receiver. The metering groove includes a groove axis that extends the length of the metering groove and cross-sectional areas oriented perpendicular to the groove axis that differ according to their location along the axis. The metering passage is formed from all or a portion of the metering groove, and limits the flow of fluid through the receiver with the smallest cross-sectional area of the metering groove portion that forms the metering passage.

Abstract: A dispensing valve is shown that controls the flow of a fluid, the valve having a housing containing a cylindrical/tubular passageway between an inlet and outlet of the valve. A rod like closure member is operable to move through the passageway from a first position in which the valve is fully closed, to a second position in which the valve is fully open. The exterior surface of the closure member engages the interior surface wall of the passageway to seal the passageway and the interior surface wall and/or the exterior surface of the closure member have helical/spiral grooves therein. A spiral flow passage is defined through which the fluid can flow on its passage from the inlet to the outlet when the closure member moves away from its first position. Further movement of the closure member towards the second position regulates the flow rate of the fluid through the passageway.

Abstract: In a fluid metering device for metering a fluid from a supply source to means of use of this fluid comprising a metering valve able to slide in a sleeve over a travel C, this valve comprising an intake orifice (16) for admitting the fluid from the said supply source and an orifice (18) for ejecting this fluid to the means of use, there are provided means (20) for channelling the fluid intended to allow, during the movement of the metering valve in its sleeve, a sweeping of the fluid over all the contacting surfaces of the valve and of the sleeve. The means of channelling the fluid advantageously comprise a helical groove of width L and of pitch P.

Abstract: A choke for a brake control valve coming within the physical space limitation by forming a helical choke path. The choke includes a body having a passage and a plug in a passage. The helical path is created between and defined by the passage and the plug to form the choke. The length the passage is less an inch and the length of the plug is less than 0.25 inches. The body includes the first portion having an external thread and a stem portion. A filter is mounted on the stem portion. The first portion is mounted in a threaded opening in a first wall of the valve. The filter extends into an opening in a second wall of the valve and a cap mounted in the second opening contacts the filter and holds it secure on the stem.

Abstract: Pressurised medium apparatus with a valve.

Abstract: A method for delivering fuel oil from a pressurized fuel oil source to an airblast atomizer subassembly on a low firing rate fuel oil burner includes providing a flow control device having a body defining a bore extending between and inlet end of the bore and an outlet end of the bore. The flow control device includes a rod disposed coaxially within the bore in a close fitting relationship. At least one of the bore and the rod is threaded (i.e., includes a groove extending along a helical path) to define a passageway extending along a circuitous, helical path intermediate the input and output ends of the bore through which the fuel oil must pass in flowing from the input end to the output end. The passageway has a size and shape adapted to achieve a desired rate of flow of the fuel oil to the airblast atomizer subassembly (e.g., less than 1.0 gallons per hour and typically less than 0.5 gallons per hour). The method proceeds by delivering the fuel oil through the passageway in the flow control device.

Abstract: A valve (1) on the basis of electrorheological and/or magnetorheological fluids includes a fluid inlet channel (3) connected through a valve gap (5) to a fluid outlet channel (4). The valve gap is filled with an electrorheological and/or magnetorheological fluid and is bounded by bounding surfaces that are embodied as electrically energizable capacitor electrodes and/or coil arrangements, whereby the field excitation thereof acts on the fluid flowing through the valve gap. At least one bounding surface of the valve gap is embodied to be movable selectively toward and away from another bounding surface, so as to superimpose a squeeze mode and a flow mode of the electrorheological and/or magnetorheological effect. The valve gap may define a meandering or spiral flow path for the fluid. In this manner, a compact valve can provide high blocking pressures and high through-flow rates.

Abstract: In a fluid metering device for metering a fluid from a supply source to means of use of this fluid comprising a metering valve able to slide in a sleeve over a travel C, this valve comprising an intake orifice (16) for admitting the fluid from the said supply source and an orifice (18) for ejecting this fluid to the means of use, there are provided means (20) for channelling the fluid intended to allow, during the movement of the metering valve in its sleeve, a sweeping of the fluid over all the contacting surfaces of the valve and of the sleeve. The means of channelling the fluid advantageously comprise a helical groove of width L and of pitch P.

Abstract: A toilet fill valve includes a housing defining a water fill passage and a water inlet. A valve disposed in the passage divides the housing into a upstream portion and a downstream portion. A pressure regulator vertically oriented in the downstream portion of the housing has a spiral configuration providing a significant pressure drop in the water flow. Noise abatement is enhanced by pressure regulation which reduces the flow velocity, flow directors which inhibit turbulence, and energy drops provided in a downspout.

Abstract: A dispensing valve is shown that controls the flow of a fluid, the valve having a housing containing a cylindrical/tubular passageway between an inlet and outlet of the valve. A rod like closure member is operable to move through the passageway from a first position in which the valve is fully closed, to a second position in which the valve is fully open. The exterior surface of the closure member engages the interior surface wall of the passageway to seal the passageway and the interior surface wall and/or the exterior surface of the closure member have helical/spiral grooves therein. A spiral flow passage is defined through which the fluid can flow on its passage from the inlet to the outlet when the closure member moves away from its first position. Further movement of the closure member towards the second position regulates the flow rate of the fluid through the passageway.

Abstract: A valve for use in a sucker rod actuated fluid pump including a traveling valve assembly and a standing valve assembly within which a vortex is believed to be created to draft the ball check valve from its seat during the stroke of the sucker rod and thereby increase the amount of petroleum fluids pumped to the surface during each stroke of the fluid pump.

Abstract: A fill valve has a main valve with a valving surface contacted by a valve disk. A series of offset radial paths separated by a toroidal path permit free radial flow at full open and quiet tortuous flow as the valve closes. Removal of a cap permits access to the main valve for cleaning. Indicia in the valve body provide easy height adjustments. A riser base is made up of easily molded locking parts and provides a variable height adjustment structure that is shielded from view. A flexible cup performs multiple functions including serving as a pilot valve, a vacuum breaker valve and a seal. A float for operating the pilot valve is pivotally mounted without extra parts or fasteners.

Abstract: An improved control valve to control very low rates of flow having a valve body housing a throttle mechanism. The throttle mechanism comprising a bore and throttle plunger, having a helical exterior groove, sized with an annular passage therebetween. The size of the cylindrical passage is selected and held within limits so that media of a chosen viscosity maintains fully developed laminar conditions as it enters and exits the valve, by keeping the Reynolds Number under 4000. The flow rate is controlled by varying the distance that the throttle plunger extends into the bore. Because the valve operates under constant laminar conditions this varying distance yields linear results between the length of engagement of the throttle plunger in the bore and the flow rate resulting in an increased accuracy control valve.

Abstract: A device for feeding a gaseous fluid radially from a center of a vessel outwards, including a central vertical gas feed tube having at least one vertical row of discharge openings, a catalyst bed of bulk material accommodated in a perforated basket, which includes a perforated cylindrical surface surrounding the central vertical gas feed tube in a spaced relationship thereto and defines with the guide feed tube a hollow cylindrical space, the perforated cylindrical surface defining an impingement surface of the catalyst bed, and deflector elements provided at the at least one row of the discharge openings to insure a substantially tangential flow of gas into the hollow cylindrical space.

Abstract: A valve for a two way hydraulic drilling jar which includes a hollow cylindrical member having an exterior surface, an interior surface, a first end and a second end. At least one spiral-form fluid bypass passage is positioned in each of the first end and the second end of the cylindrical member. The at least one spiral-form bypass passages has a first end communicating with the exterior surface and a second end communicating with the interior surface.