Abstract: A valve device has a valve space (14) formed in a housing (12a, 12b), a valve drive (16) sealed against the valve space (14) by means of a sealing body (26) made of an elastic material, a two-armed actuating lever (32) which extends through the sealing body and whose first arm (34) is connected to the valve drive (16), and a closing body (28) molded on the sealing body (26), which forms a jacket of the second arm (30) of the actuating lever (32). The closing body (28) can cover or clear a valve seat (24) disposed in a valve space (14) by a swivel movement of the actuating lever (32), wherein the actuating lever (32) includes a spatially fixed bearing axis.

Abstract: A butterfly valve includes a main body and a valve plate. The main body is provided with a valve port and a handle fixed with a shaft for connecting a handle with the valve plate that is received in the valve port of the main body. Before the valve plate is shaped, a sealing ring is deposited in the shaping cavity of a valve plate shaping mold, and after the valve plate is shaped, the sealing ring will be secured at the periphery of the valve face for achieving sealing effect and preventing liquid from leaking when the valve plate is closed. Further, the valve face has one side bored with a shaft hole at a location eccentric to the center of the valve face. Thus, when the handle is operated, the valve plate can be turned to open or close smoothly.

Abstract: A valve operating device includes a mounting for attachment to a vehicle and an elongate arm, the free end of which is only moveable in a plane parallel to the ground. The joints of the arm pivot around vertical axes and the arm is locked into a desired orientation by a brake at each joint. A valve turning machine is at the free end of the arm. The brakes are engaged and released by a control on the valve turning machine.

Abstract: The present invention provides a valve that controls a flow of gas or solid objects through a pipe, and particularly a z-valve used in an elevated rail transportation system. The valve includes vanes hinged to a valve stem that fold into a z-shape and retract into the valve body when the valve is open. A valve cap positioned at the top of the valve stem matches the contour of the inner surface of the pipe, allowing unobstructed flow. When the valve is closed, the valve stem is elevated into the interior of the pipe and the valve cap rotates 90° to match the contour at the top, providing a seal. The vanes extend from the z-shape to completely block a cross-section of the pipe, stopping the flow. The flow may be modulated by varying the extension of the vanes to allow a portion of the flow to pass the valve.

Abstract: The fitting housing contains a control cartridge, of which the control shank can be pivoted about the pivot axis. The actuating lever can be displaced relative to the control shank, is mounted on the latter and can be pivoted via its own lever axis, this lever axis being guided in the guide track. When the actuating lever is pivoted up and down, it executes a displacement movement relative to the control shank, and this prevents contact between the actuating lever and the fitting housing.

Abstract: A poppet valve assembly is provided for use on a fuel tanker truck which enables the truck's driver to determine whether fuel is flowing through the valve assembly and whether fuel is present in the valve assembly. The valve assembly has a two part housing, one of the parts having a sight glass secured therein. The sight glass is visible through cutouts in the housing. When the poppet valve is opened, fluid flows through a flow channel in the valve assembly. The fluid, being different colors, may be easily seen through the sight glass from a distance.

Abstract: A safety lockout device for a level throttle control of a vehicle includes a rocker or toggle stop mounted to be engageable with a throttle arm to lock out movement of the arm. A release is connected to the stop so as to move the stop against a restorative form applied by a biasing element away from the arm and permit the throttle to be operated. Upon the throttle arm moving back to an idle position the biasing element moves the stop back to its lock out position.

Abstract: A fuel shutoff valve system including a body, a first fluid flow path extending through the body, a second fluid flow path extending through the body, the second fluid flow path separate from the first fluid flow path, and a single shaft that extends through at least a portion said the fluid flow path and through at least a portion of the second fluid flow path, the shaft adapted for movement between a first position and a second position, wherein in the first position the first and second fluid flow paths are open, and wherein in the second position the first and second fluid flow paths are closed.

Abstract: Rotary metering valve (200) with a valve inlet (260), a valve outlet (270) and a rotary valve member (280) for transferring a metered dose of aerosol formulation from the inlet to the outlet, wherein the rotary valve member is provided with an inlet port (290) and an outlet port (300), both in communication with a metering conduit (310) in the rotary valve member, the rotary valve member in sequence being rotatable between at least three positions: inlet position where the inlet port is in communication with the valve inlet and aerosol formulation enters the metering conduit, metering position where both ports are closed preserving a metered volume of aerosol formulation in the metering conduit, outlet position where the outlet port is in communication with the valve outlet and the metered dose of aerosol formulation is dispensed from the valve.

Abstract: A valve body has a channel extending along an axis and an inlet port open to the channel. A sleeve, received about the valve body, overlies the inlet port and is rotatable about the axis relative the body. A nozzle projects radially outward from the sleeve. The nozzle is rotatable with the sleeve into a range of positions in which the nozzle communicates with the inlet port through the sleeve.

Abstract: An injection system (1) for injecting fuel at a predetermined fuel pressure has: an actuator (2, 3) providing a stroke for lifting an injector needle (4) that opens a nozzle into which the fuel is injected; a leverage apparatus (5) for translating the provided stroke into a modified stroke, the apparatus has a compensating device (6) coupled to the actuator (2, 3), and a lever device (7), which is coupled to the injector needle (4), wherein the lever device has at least two symmetrically disposed, single-arm levers (8a, 8b), which each come in contact with an injector needle head (10) of the injector needle (4) when lifting the injector needle (4) by means of a single needle head support (9a, 9b); and wherein the compensating device (6) is suited to compensate a varying force application of the actuator (2, 3) on the single-arm lever (8a, 8b).

Abstract: An example valve for controlling airflow to an engine includes an actuator with an actuator arm that moves between extended and retracted positions, and a valve housing defining an airflow passage extending between a first housing opening and a second housing opening. The airflow passage has an axis X. The example valve also includes at least one finger within the valve housing. Movement of the actuator arm causes radial movement of the finger relative to the axis X, and the finger moves between a position that provides a restricted flow of air through the airflow passage, and a position that provides a greater flow of air through the airflow passage.

Abstract: A lever action tap or faucet has a rotary control for manually regulating the flow of water through the tap to a spout, and is adapted for hospital environments, including pre-surgical scrubbing up. The control comprises a long lever arm and a short lever arm, either lever arm being operable to operate the control, the lever arms being mounted with a predetermined angular separation about the axis. The angle of rotation between the open and closed states is substantially equal to 90°. The arrangement is such that the long lever is arranged to rotate upwards and away from the user in moving from the open state to the closed state. The short lever arm is arranged to rotate downwards and away from the user, in moving from the closed state to the open state.

Abstract: A control mechanism for a noise attenuation valve in a vehicle exhaust system is configured to significantly reduce operational noises. The noise attenuation valve includes a flapper valve (18) that is supported on a shaft (16) for rotation within an inlet tube (14). The shaft is coupled to an actuator (27) with a linkage assembly (30). The linkage assembly (30) includes a lever (42) that contacts noise attenuation pads (48) at maximum travel limits defined by a backing plate (46) to reduce operational noise. In one example configuration, the actuator provides a bottomless solenoid configuration and utilizes a pulse width modulation control module to further reduce operational noises.

Abstract: A valve comprises a housing, a handle for opening and closing the valve, a handle release that is engagable with the housing to prevent movement of the handle relative to the housing, and that is disengageable from the housing to enable movement of the handle relative to the housing, and a lock for maintaining the handle release engaged with the housing to prevent movement of the handle relative to the housing.

Abstract: The present invention relates to a manipulation button 40 for adjusting the height of a cushion seat for a vehicle that is capable of absorbing the shocks applied to a driver sitting on the cushion seat while the vehicle is being driven on a relatively rough road, and more particularly, to a button for adjusting the height of a cushion seat for a vehicle that is capable of adjusting the height of the cushion seat according to a driver's physical conditions and his desired driving posture, wherein a plurality of pneumatic valves having flow channels formed therein are intensively configured with one another in such a manner as to be operated by means of the seesaw type button 41, thereby effectively performing the ascending and descending motions of the cushion seat in a simple manner.

Abstract: A valve actuator apparatus is provided, which further comprises a linkage mechanism, which can convert rotational force into translational force. This linkage mechanism also imparts a much greater degree of mechanical advantage than typical rack-and-pinion linkages allowing either for greater closing force on the valve or for the use of smaller drive motors to actuate the valve. Furthermore, this linkage mechanism can lock the valve closed, with full seating force, even when no torque is provided by a drive motor.

Abstract: A device and method are provided for regulating two types of flow from a nozzle. The first flow is a deluge stream and the second flow is a fog spray. The deluge stream is controlled by the nozzle operator using a first flow control valve, such as a ball valve. The fog spray is controlled by the nozzle operator using a second flow control valve. The nozzle permits the nozzle operator to manually control the flow of the nozzle, thereby permitting quick regulation and adjustment of flow types and amounts to accommodate then existing fluid pressure and supply conditions to address fluid application needs.

Abstract: Disclosed is a remotely operable top drive safety valve assembly having first and second valve elements. An actuator sleeve moves longitudinally on the main body of the top drive safety valve assembly under the influence of an operating arm. When operating the first valve element, a lock plate is preferably installed over the second valve element stem, and an arm is externally fixed to the stem of the first valve element and is disposed in a cutout in the wall of the actuator sleeve. Movement of the actuator sleeve up and down moves the arm, and thereby moves the first valve element between open and closed positions. When operating the second valve element, the arm on the upper valve element stem is removed, a lock plate is preferably installed over the first valve element stem, an arm is installed on the second valve element stem, and a linkage assembly is installed which operationally engages the second valve element stem arm with the actuator sleeve.

Abstract: A beverage faucet lever comprising: an upper shaft, wherein the upper shaft comprises a tap marker alignment member, and wherein the upper shaft comprises a lip for engaging a tab of a tap marker mounting device, and further wherein the upper shaft is at least partially positionable within a tap marker mounting device; a lower shaft, wherein the lower shaft comprises an actuator and wherein the lower shaft is at least partially positionable within a beverage faucet; and a ball joint positioned between the upper shaft and the lower shaft, wherein the ball joint is at least partially positionable within a beverage faucet.

Abstract: An adjustable device for controlling closure of a valve closure member of a valve includes an adapter for mounting to a valve and an actuator for engaging the valve closure member, which is adapted to rotate about an axis for opening, closing or throttling the valve. The device also includes a slow close assembly that includes at least one friction member, which generates a friction force when the actuator is rotated to thereby limit the speed at which the handle may be rotated.

Abstract: A two-handle valve cartridge has a housing with a snap retainer formed therein, such that a stem can be snap fit into the housing. The snap retainer prevents the stem from inadvertently becoming dislodged after assembly of the valve cartridge. The snap retainer also absorbs tolerances attributable to the stem and the housing and eliminates a clearance between the stem and the housing.

Abstract: A valve including an integrated heater that has particular application for one or more of a bleed valve, a drain valve and a pressure release valve in an anode outlet unit of a fuel cell system. The valve includes a valve body having a valve body chamber defining a valve seat. A valve tappet seats against the valve seat to close a flow channel in the valve through which a fluid flows. A ring heater is mounted within the chamber so that the fluid flows through a central opening in the ring heater, where the ring heater is in close proximity to the valve seat.

Abstract: An manual activation mechanism for an electronic flushometer system. A manual activation or override plate has a sensor switch directly coupled thereto and is hingedly connected to a sensor bracket. When a user presses the manual activation or override plate, the sensor switch acts against a bumper, which is compressed to create an electrical contact with a printed circuit board. The electrical contact results in the transmission of an electrical signal to a solenoid system, actuating a flushometer valve.

Abstract: A controlled rate feeder system for fine particle solids and a method thereof includes a seat-and-backseat structure, a seat plate assembly, a backseat plate assembly, at least one biasing device, and an actuator assembly. The seat-and-backseat structure has an inlet and an outlet which are connected together by at least one passage. The seat plate assembly is moveable to any position between covering and exposing the inlet. The backseat plate assembly is positioned adjacent to and moveable with the seat plate assembly. At least one biasing device is positioned between the seat plate assembly and the backseat plate assembly which biases the seat plate assembly and the backseat assembly apart. The biasing device also biases the seat plate assembly against an inner surface of the seat-and-backseat structure and the backseat plate assembly against another inner surface of the seat-and-backseat structure. The actuator assembly moves the seat plate assembly to any position between covering and exposing the inlet.

Abstract: The water flow control structure of a water gun includes a movable control tube, stepwise positioning unit, oblique guide and resilient component. When the control tube is moved by the control component, it is turned by the oblique guide and stepwise positioning unit. Each time the first guide of the control tube coordinates with the position of the stepwise positioning unit, it makes the space between the stopper head of the control tube and the water control outlet of the water holder close or open in different degrees to control water flow. The entire control structure is hidden inside the water gun. The repeated movements of the control component can switch the water flow mode, which is convenient and practical.

Abstract: A torch operable to pivotally secure a lever on opposite sides of the torch. The torch may comprise a torch butt, a valve assembly, and a lever. The valve assembly may be operable to control a flow of a fluid through the torch butt. The lever may be selectively securable to a first portion of the torch butt and a second portion of the torch butt. The second portion of the torch butt may be disposed opposite the first portion of the torch butt. The valve assembly may be selectively securable within the torch butt to enable the lever to operate the valve assembly with the lever selected to pivot about the first portion of the torch butt and the second portion of the torch butt.

Abstract: A lever actuated pneumatic deadman valve for use in connection with pneumatic blasting equipment is ergonomically designed to reduce fatigue and strain on the operator. The valve is shaped to fit comfortably in the hand of the operator, with a spring biased lever hinged for action to fit the natural movement of the hand. A detent button is sized and positioned for easily accommodating single-handed operation. Another important feature of the deadman valve is the reconfiguration of the valve cartridge with an offset port to produce a cyclonic flow around the spool for reducing the wear on the spool.

Abstract: A device for variable activation of valves for internal combustion engines, which is arranged in a cylinder head having a camshaft mounted in a fixed location with valves that close by means of spring force through a stroke transfer arrangement. This device includes a movable element mounted with a fixed pivot, and has a support cam and a control cam. An intermediate member is displaceably mounted and supported on the element, and is in engagement with a cam lever of the camshaft, as well as the stroke transfer arrangement. The intermediate member supports itself on the support cam and control cam with a non-positive lock, sliding during the stroke movement. Whereby the control cam determines the stroke movement to be transferred to the stroke transfer arrangement by the intermediate member, as a function of the pivot position of the element that can change its position.

Abstract: The invention relates to a continuously lockable adjusting device 1, consisting of a fluid-filled cylindrical housing 2, of a piston 4 which is axially movable in the housing 2 and which subdivides the housing 2 into two pressure chambers 5, 6 and is connected to a piston rod 3 which, sealed off at one end, penetrates the housing 2. A locking valve 7 has a closing member 13 and a manually actuable trigger tappet 8 together with a transmission disc 16, a tilting movement of the trigger tappet 8 causing the closing member 13 to be capable of being acted upon axially movably by the transmission disc 16 and causing the locking valve 7 to be capable of opening so as to connect the pressure chambers 5, 6 to one another. The transmission disc 16 of the trigger tappet 8 is in bearing contact on the closing member 13 axially in a play-free manner, and the trigger tappet 8 is fixed axially in this position with respect to the closing member 13.

Abstract: A gating apparatus for controlling the gap between two surfaces that includes an upper structure having a polished central region portion, an elastically deformable fulcrum structure, and an elastically deformable lever region. The upper structure can be fabricated from silicon using microelectromechanical system (MEMS) fabrication techniques. The gating apparatus also includes a lower structure coupled to the upper structure at the elastically deformable fulcrum structure. The upper structure, in response to a force, can bend about the fulcrum structure, thereby forming a variable gap between the polished central region portion and the lower structure. The variable gap can be used as a filter to filter fluids and mixed phase fluids. The structures can be made from a wide variety of materials including silicon, glass, ceramic, metal, and plastic.

Abstract: A drain pipe dispenses waste water from the vehicle. The drain pipe has a circumferential slot and a gate collar around the drain pipe over the slot. A gate valve is coupled to the gate collar. A gate reciprocable between a closed and open position is provided. A drive rod coupled to the gate with a free end is formed with a C-shaped hook. A pivot bolt is provided. The lever is rotatably supported on the pivot bolt. A handle has an intermediate extent. The intermediate extent is slidably received in the C-shaped hook whereby moving the handle toward the drain pipe closes the gate valve and moving the handle away from the drain pipe opens the gate valve.

Abstract: The invention concerns a safety gas valve (1) provided with a safety closure (23) and an operating lever (12) for the closure. The lever (12) is mounted mobile in rotation about an axis L in a cavity (34) circulating the gas and comprises two tabs (122, 123) extending transversely to the axis L, one driving and the other driven. The driving tab (122) drives the lever in rotation, and hence the driven tab (123) which is secured thereto, in response to a stress A when the valve is opened. The driven tab (123) enables to push back the safety closure (23) into an opening position allowing the gas to flow in the valve. If both tabs extend along respective mutually perpendicular directions, the lever (12) enables the cocking movement to return by 90 degrees. Said device reduces the thickness of the valve body, in particular for its fixing into a built-in cooking plate.

Abstract: In a closure device for the fluid delivery line of a high-pressure cleaning apparatus having arranged in the fluid delivery line a closure member which is pressed with a closing force against a valve seat and thereby closes the fluid delivery line, and which is liftable off the valve seat by a mechanical actuating element displaceable by a hand lever and extending in a sealed manner out of the fluid delivery line, when the hand lever is moved in the direction of an open position, in order to reduce the holding forces when the hand spray gun is open, it is proposed that downstream of the valve seat in the fluid delivery line a displaceably mounted piston extend in a sealed manner out of the fluid delivery line and upon being pushed out of the fluid delivery line cooperate with the hand lever in such a manner that the hand lever is moved in the direction towards its open position.

Abstract: A valve has a valve stem including a head operable in an outlet for opening and closing the valve. A resilient bulb functions as a spring for operation of the valve. A lever is used to depress the bulb and move the valve stem. The shape of the channel defined for flow through the valve consolidates the fluid stream leaving the valve.

Abstract: In a closure device for the fluid delivery line of a high-pressure cleaning apparatus having arranged in the fluid delivery line a closure member which is pressed with a closing force against a valve seat and thereby closes the fluid delivery line, and which is liftable off the valve seat by a mechanical actuating element displaceable by a hand lever and extending in a sealed manner out of the fluid delivery line, when the hand lever is moved in the direction of an open position, in order to reduce the holding forces when the hand spray gun is open, it is proposed that downstream of the valve seat in the fluid delivery line a displaceably mounted piston extend in a sealed manner out of the fluid delivery line and upon being pushed out of the fluid delivery line cooperate with the hand lever in such a manner that the hand lever is moved in the direction towards its open position.

Abstract: A metering faucet includes a housing and a faucet metering cartridge positioned within the housing and having an outwardly extending faucet stem which is movable along a stem axis. There is a cartridge cap which is positioned within the housing and has a portion extending over and in contact with the cartridge stem to provide an inward force thereon. A handle is pivotally mounted to the housing on one side of the stem axis, with the handle having a portion which extends through a housing opening to contact the cartridge cap. Upon pivotal movement of the handle, an inward force is applied on the cartridge stem. The handle has a force applying area which extends a substantial distance from the pivotal mounting of the handle and terminates at the diametrical opposite side of the pivotal mounting of the handle.

Abstract: A manual control mechanism for a lift unit having a lift arm and a hydraulic cylinder for lifting the lift arm up and down. The mechanism includes a control valve configured as a three-position switchover valve for selectively providing lowering, neutral and elevating conditions according to a spool position for controlling movement of the hydraulic cylinder, a lift lever for manually operating the control valve and an operational path for guiding operational displacement of the lift lever. The operational path includes an inching operational path for operating the hydraulic cylinder at a creeping speed by slightly opening a port of the control valve and a main operational path for operating the control valve over an entire stroke range thereof. An operational feel when the lift lever is operationally displaced along the inching operational path is different from an operational feel when the lift lever is operationally displaced along the main operational path.

Abstract: A faucet comprises a valve body having a bore, an inlet port and an outlet port. A plunger is disposed in the valve body and is reciprocated in the bore. The inlet port opens into a fluid passage adapted for connection to a pressurized source, and the outlet port opens into a dispensing spigot adapted to discharge materials from the faucet. A handle having a pivotal lever is disposed in the valve body and engages the plunger to reciprocate longitudinally through the bore. A plug is mounted on the plunger and has axial and radial sealing surfaces. The plug is forced against the axial valve seat when the valve is closed to deform in both axial and radial directions.

Abstract: The invention relates to a valve assembly especially for a liquid dispensing device. It comprises a valve enclosure body (10), a valve element (13) located in the valve enclosure (10), an operating lever (14) for moving the valve element (13), and an operating lever sealing (15) in a through-hole of the valve enclosure body (10). According to the invention, the operating lever (14) is pivoted to the valve enclosure body (10) on the outside of the valve enclosure, in which case the pivot point is not in contact with the agent flowing through the valve.

Abstract: A liquid-dispensing faucet includes a mounting fitting that defines a first flow passage and that is adapted for connection to an associated container with the first flow passage in communication with an internal space of the container. The mounting fitting comprises a valve seat. A body is connected to the mounting fitting. The body defines an inlet, an outlet and a second flow passage that fluidically interconnects the inlet and the outlet. A seal member is connected to the body and is selectively movable between a first operative position and second operative position. The seal member sealingly mates with the valve seat to block the first flow passage when the seal member is in the first operative position. An actuator is operably coupled to the seal member for moving the seal member from the first operative position to the second operative position. In this manner, the valve seat is provided in the mounting fitting rather than as a part of the faucet body.

Abstract: A faucet comprises a valve body having a bore, an inlet port and an outlet port. A plunger is disposed in the valve body and is reciprocated in the bore. The inlet port opens into a fluid passage adapted for connection to a pressurized source, and the outlet port opens into a dispensing spigot adapted to discharge materials from the faucet. A handle having a pivotal lever is disposed in the valve body and engages the plunger to reciprocate longitudinally through the bore. A plug is mounted on the plunger and has axial and radial sealing surfaces. The plug is forced against the axial valve seat when the valve is closed to deform in both axial and radial directions. The plunger is alternatively designed with channels on its exterior and passages through its interior for use with low-viscosity fluids and with a sealing arrangement for use with high-viscosity fluids. The dispensing spigot can be removed to ease access to the plug for cleaning.

Abstract: The fuel injector includes a solid state actuator that operates through an actuator motion amplifying lever to directly control the needle valve motion. Hydraulic forces, which act along the axes of the needle valve and the motion amplifying lever, are compensated by using a control piston, or other biasing means, to reduce the required amplitude of the control current/voltage and to reduce the required strength of the spring biasing the needle valve closed. The fuel injector may also include a control fuel inlet that is separate from the injection fuel inlet port.

Abstract: A faucet comprises a valve body having a bore, an inlet port and an outlet port. A plunger is disposed in the valve body and is reciprocated in the bore. The inlet port opens into a fluid passage adapted for connection to a pressurized source, and the outlet port opens into a dispensing spigot adapted to discharge materials from the faucet. A handle having a pivotal lever is disposed in the valve body and engages the plunger to reciprocate longitudinally through the bore. A plug is mounted on the plunger and has axial and radial sealing surfaces. The plug is forced against the axial valve seat when the valve is closed to deform in both axial and radial directions. The plunger is alternatively designed with channels on its exterior and passages through its interior for use with low-viscosity fluids and with a sealing arrangement for use with high-viscosity fluids. The dispensing spigot can be removed to ease access to the plug for cleaning.

Abstract: A metering faucet includes a housing and a faucet metering cartridge positioned within the housing and having an outwardly extending faucet stem which is movable along a stem axis. There is a cartridge cap which is positioned within the housing and has a portion extending over and in contact with the cartridge stem to provide an inward force thereon. A handle is pivotally mounted to the housing on one side of the stem axis, with the handle having a portion which extends through a housing opening to contact the cartridge cap. Upon pivotal movement of the handle, an inward force is applied on the cartridge stem. The handle has a force applying area which extends a substantial distance from the pivotal mounting of the handle and terminates at the diametrical opposite side of the pivotal mounting of the handle.

Abstract: A remote control assembly (10) for controlling a valve or similar equipment is provided which includes a case (12) having an internal, pivotal lever (14) presenting first and second alternately usable spaced apart lever couplers (126, 130, 128, 132), together with a shiftable output rod (15) selectively and alternately connectable with one or the other of the lever couplers (126, 130, 128, 132). A control handle (16) is operatively coupled with the lever (14) and extends out of the case (12), with the handle (16) being movable in order to pivot the lever (14) about an axis (18) to thereby shift the output rod (15). The control handle (16) is located in a first rest position when one lever coupler (128, 132) is employed, and a second, different rest position when the other lever coupler (126, 130) is used.

Abstract: A slide valve faucet handle operates when a user arcuately pushes or pulls the handle back and forth in one arcuate axis. A knob atop the slide valve is pushed away from the user in an arcuate fashion to increase flow or pulled toward the user to reduce or shut off flow. The slide valve includes an escutcheon/valve housing at the bottom with a manually graspable knob at the top attached to a movable cover member. The cover member, which is basically hemispherical, has a section removed at an angle to permit the movable cover to advance forward over the escutcheon/valve housing. With the knob in the upright position, the valve is closed. With the knob tilted fully back in a position of use, the slide valve is in the full open position. Intermediate positions regulate flow in a continuous linear manner as expected. There is no spring return, so the slide valve remains open where adjusted along the arcuate axis.

Abstract: An arm-driven sleeve valve utilizes a single pin connection to transmit torque from a shaft of the sleeve valve to a pair of arm portions suspended therefrom for controlling the flow of fluid from the valve by axially moving a gate. The single pin connection is centrally positioned between the arm portions and ensures the each of the arm portions exerts an equal force on the gate, regardless of torsional deflection of the shaft. Use of the invention allows arm-driven sleeve valves to be driven asymmetrically from only one of opposite axial ends of the shaft without tending to bind the gate against the main body of the valve.

Abstract: A burner isolation valve or gate for use in the coal-delivery pipes of coal-fired power plants. Safety regulations often require that two valves be placed in the coal delivery line between a combustion chamber and an exhauster or pulverizer type deliver source to isolate the section of pipe in between for maintenance and other access. The invention includes a novel valve plate and actuation assembly, a novel housing adapted to sealingly enclose the valve plate, and a novel sealing mechanism for the valve plate and housing adapted to keep coal fines and dust out of the outboard portion of the housing in which the valve plate rests in the valve-open position.

Abstract: A hydrant valve assembly including a spool member having at least one spool seal which is at times under extremely high pressure tending to cause the seal to be displaced from an associated recess, the spool member forming venting passages in the seal recess to alleviate seal pressure, the invention also including a new wet pipe design and a new collar design.