Abstract: A two-stage water treatment process. In a first stage, an incoming stream of water is processed to remove impurities and produce an outgoing stream of water usable for a first purpose and a waste stream of water not suitable for the first purpose. In a second stage, the waste stream of water is processed to remove hardness and alkalinity and produce a second outgoing stream of water suitable for a second purpose. In an exemplary embodiment, the first stage is a forward osmosis or nanofiltration process, and the first purpose includes production of potable water. The second stage includes the use of a weak acid cation resin system.

Abstract: A pressing tool for pressing workpieces is described. The pressing tool comprises a hydraulic pump for conveying a hydraulic fluid, an electric motor for driving the hydraulic pump, a working cylinder which is hydraulically connected to an outlet of the hydraulic pump, a pressure-relief valve which is hydraulically connected to the outlet of the hydraulic pump and which opens at a certain predefined pressure Pv of the hydraulic fluid, an electronic control for controlling the electric motor and a sensor 60 which monitors the state of the pressure-relief valve and emits a signal which describes the state of the pressure-relief valve to the electronic control. Furthermore, a method of operating such a pressing tool is described.

Abstract: A monitoring system for monitoring a kinematic coupling between an actuator and an element controlled by the latter includes a first sensor to detect the operative movement of the actuator. A second sensor is designed to detect the actual movement of the controlled element. A computer unit, based on the operative movement of the actuator, determines an anticipated movement of the controlled element and compares this anticipated movement with the actual movement of the controlled element. An error message is emitted when a value of the deviation between the anticipated movement and the actual movement exceeds a predefined threshold value.

Abstract: A coolant control regulator assembly that comprises a plurality of modular housings, an actuator, and a plurality of ball valves. The actuator is operatively connected to at least one of the plurality of modular housings. Each of the modular housings comprises an internal cavity, at least one inlet port, and at least one outlet port. Further, each of the internal cavities includes one of the plurality of ball valves positioned therein. At least one of the plurality of ball valves comprises a plurality of apertures that are configured to align with the at least one inlet port and the at least one outlet port in certain rotational positions.

Abstract: There is provided a solid-state image pickup element including: a photodiode configured to convert incident light into a photocurrent; an amplification transistor configured to amplify a voltage between a gate having a potential depending on the photocurrent and a source having a predetermined reference potential and output the amplified voltage from a drain; and a potential supply section configured to supply an anode of the photodiode and a back-gate of the amplification transistor with a predetermined potential lower than the reference potential.

Abstract: A turbomachine module with a longitudinal axis, the module comprising: a rotary casing rotatable around the longitudinal axis and arranged to carry a propeller provided with a plurality of blades; a system for changing the pitch of the blades of the propeller comprising: a control, and a mechanism for varying the pitch of the blades of the propeller connecting these blades to the control, wherein the control comprises a rotary actuator comprising a control body and a reference body which is integral with the rotary casing, and wherein the mechanism for varying the pitch comprises a synchronization ring which is driven in rotation around the longitudinal axis by the control body and which is guided in rotation on the rotary casing, the synchronization ring being connected to the blades.

Abstract: An operational data storage device mounted on an hydraulic excavator is programmed to store operational data including stroke data and movement quantity data. The stroke data represent input operations by the operator of the hydraulic excavator through electric operating levers, and the movement quantity data represent movement quantities of operating members for a front working device equipped with the hydraulic excavator, the operating member being operated according to the input operations. The operational data storage device stores, in an initial state, the operational data in the volatile storage section, generates a save and exit signal if a posture parameter detected at a posture detection sensor included in the hydraulic excavator exceeds a predetermined posture threshold, and responsive to the save and exit signal, switches a write destination of the operational data from the volatile storage section to the non-volatile storage section.

Abstract: A semiconductor device including photosensor capable of imaging with high resolution is disclosed. The semiconductor device includes the photosensor having a photodiode, a first transistor, and a second transistor. The photodiode generates an electric signal in accordance with the intensity of light. The first transistor stores charge in a gate thereof and converts the stored charge into an output signal. The second transistor transfers the electric signal generated by the photodiode to the gate of the first transistor and holds the charge stored in the gate of the first transistor. The first transistor has a back gate and the threshold voltage thereof is changed by changing the potential of the back gate.

Abstract: A multi-way poppet valve and methods for using the same are provided. In one embodiment, the poppet valve includes a manifold and a poppet assembly including an inner poppet and an outer poppet defining one or more lands. The poppet assembly can dimensioned for receipt within a bore of the manifold and configured to move longitudinally within the manifold. The inner poppet and the outer poppet can also be formed in two separate pieces that are capable of moving with respect to one another. This design can allow the lands of the poppet assembly to form fluid-tight seals (e.g., metal-metal, metal-gasket, etc.) with the manifold. In this manner, the poppet valve can move longitudinally between open and closed positions where the fluid-tight seals respectively allow or inhibit fluid flow between selected ports of the valve.

Abstract: A rotary actuator and a method of additively manufacturing the same are provided. The rotary actuator includes a valve housing defining a valve chamber and a shaft channel extending from the valve chamber. A valve body includes a valve shaft extending through the shaft channel and a valve head positioned within the valve chamber and defining a head width that is larger than the channel diameter to inseparably join the valve body and the valve housing. The valve head divides the valve chamber into a first chamber and a second chamber which are in fluid communication with a first port and a second port, respectively. The valve body is rotated by adjusting a fluid pressure within at least one of the first chamber and the second chamber.

Abstract: A technique facilitates valve operations in many applications including well related applications. A valve utilizes a piston which moves along an arc. The valve has an outer housing and an inner housing spaced to create an arcuate pressure chamber which extends along the arc. A piston is mounted in the arcuate pressure chamber for movement along the arc. A hydraulic force or other force may be selectively applied directly against an end of the arcuate piston to shift the arcuate piston along the arc. In some applications, the piston comprises a cutting edge oriented to enable performance of a cutting operation.

Abstract: The present invention relates to the vertical seismic profiling (VSP) of geological formations in which profiling is used to obtain information for performing precise interpretations of geophysical seismic data and better understanding of geophysical information. The disclosure involves using a sound source for generating primary and secondary seismic pulses within well boreholes. The seismic profiling system obtains information regarding a geological formation traversed by a borehole with controllable downhole seismic pulse generators with drill string tool(s). The tool(s) have contact with and are coupled to the formation. A seismic pulsing device (SPD) is attached to a portion of the drill string and a valve controller is used to control opening and closing the valve causing high amplitude short duration ultra wide band pressure pulses, generating primary seismic waves sent into surrounding geological formations.

Abstract: Soft pneumatic actuators based on composites consisting of elastomers with embedded sheet or fiber structures (e.g., paper or fabric) that are flexible but not extensible are described. On pneumatic inflation, these actuators move anisotropically, based on the motions accessible by their composite structures. They are inexpensive, simple to fabricate, light in weight, and easy to actuate. This class of structure is versatile: the same principles of design lead to actuators that respond to pressurization with a wide range of motions (bending, extension, contraction, twisting, and others). Paper, when used to introduce anisotropy into elastomers, can be readily folded into three-dimensional structures following the principles of origami; these folded structures increase the stiffness and anisotropy of the elastomeric actuators, while keeping them light in weight.

Abstract: A system for moving an object in one axis that creates highly dispersed but precisely controlled mechanical force to support, manipulate, and maintain an object, tool or application in precise alignment or orientation with respect to a stationary or moving target is disclosed. The system includes one or more fluid containers within a cylindrical enclosure or drum, and a shaft running through longitudinal axis of the drum. The shaft is coupled to the drum by rotating assemblies so that the drum may rotate around the shaft or the draft may rotate inside the drum. The fluid inflatable containers are arranged in a inside the drum around the shaft so that each container exerts expansive force between a vane fixed to the drum and a vane fixed to the shaft. A volume of the fluid may be placed in the one or more fluid containers by control systems. By changing the volume of fluid in the one or more containers, forces are exerted on the vanes and the object is moved.

Abstract: An electric actuator has a motor, an electricity storing body, a switch and a resetting unit. The switch is provided in a supply path of electric power from the electricity storing body to the motor. The switch opens the supply path for electric power from the electricity storing body to the motor, in response to an instruction from an operator. The resetting unit is operated through receiving a supply of electric power from the external power supply when the external power supply has been restored from being cut off. The resetting unit closes the switch that is provided in the supply path of electric power from the electricity storing body to the motor.

Abstract: This present invention relates to a remote electro-hydraulic actuator for actuating of mechanical devices, such as a valve in an internal combustion exhaust pipe. The actuator includes a multi-vane rotational assembly that flows the working fluid through strategically sized flow channels within the structure of the rotational assembly. The size of the holes are sized to help the stability of the valve and can also be provided with pressure check valves or reed valves to dampen the rotation of the valve and reduce any instabilities due to pulsations driven back via the output shaft.

Abstract: The subject matter of this specification can be embodied in, among other things, a valve assembly that includes a valve body having a fluid inlet, fluid outlet, and a movable closure member adapted to block fluid flow from the inlet to the outlet through a housing. The housing has an opening adapted to receive an actuator assembly that includes a central stationary shaft having at least one stator vane. A rotating collar is disposed around the stator vane and a portion of the central stationary shaft. The rotating collar has a housing and at least one stop member disposed inwardly in a cavity of the rotating collar. The rotating collar has at least two actuation chambers defined by the inner wall of the cavity in the rotating collar, the stationary vane, and the stop member. The rotating collar is coupled to the movable valve closure member.

Abstract: An electric actuator has a motor, an electricity storing body, a switch, a setting unit, a resetting unit and a setting-off unit. The switch is provided in a supply path for electric power from the electricity storing body to the motor. The switch opens and closes the supply path. The setting unit is operated through receiving a supply of electric power from the electricity storing body in response to an instruction from an operator. The setting unit opens the switch. The resetting unit is operated through r a supply of electric power from the external power supply when the external power supply has been restored from being cut off. The resetting unit closes the switch that is provided in the supply path. The setting-off unit sets off the supply of electric power from the external power supply to the resetting unit after a specific delay time has elapsed.

Abstract: A method implemented by a valve operating apparatus for hands free exercising of an in ground utility valve, which may include repeatedly opening and closing the utility valve without requiring the use of a computer program or a physical human manipulation. A valve operating apparatus may include a bi directional hydraulic powered motor which may be coupled to a utility valve stem for the purpose of rotating the valve stem of the utility valve in a closing direction or an opening direction. The direction of rotation, of a hydraulic motor, may be reversed in response to detecting an opening of a preset pressure relief valve.

Abstract: A heat management module of a cooling system of an internal combustion engine which has a valve housing that includes at least one first feed connection for cooling water of a bypass circuit and at least one adjacent second feed connection for cooling water of a radiator circuit. The feed connections can be connected to a discharge connection depending on the position of a valve member accommodated in the valve housing. A driving element which actuates the valve member is provided on the valve housing. The driving element is a hydrostatic servo motor, which produces a rotating driving motion and which uses a feed pressure line that branches from the cooling system for pressurization.

Abstract: A hydraulic oscillating motor which has at least two working chambers which are coupled via pressure lines to a device for pressure compensation. A first working chamber is connected to a first pressure line and a second working chamber is connected to a second pressure line. The motor further has a device for pressure compensation with a first compensating cylinder and a second compensating cylinder. Each of the compensating cylinders has in each case one compensating volume and in each case one elastic force store for delimiting the respective compensating volume. The compensating volume of the first compensating cylinder is connected to the first pressure line, and the compensating volume of the second compensating cylinder is connected to the second pressure line.

Abstract: A selector valve operating mechanism is provided with operating pistons which are hydraulic pistons connected through an operation link to a spool of a PTO selector valve, an solenoid valve for hydraulically controlling reciprocation of the operating pistons, and a controller which is a control device for transmitting an operation signal to the solenoid valve. Control of operation of the solenoid valve moves the spool through the operating pistons and the operation link to switch the PTO selector valve.

Abstract: A pneumatic seacock retrofit is provided for convenient closing of all or a portion of the seacocks, whether as a matter of every day convenience or for use in an emergency, in which all of the vessel's seacocks can be pneumatically closed at the same time, leaving the possibility of selectively overriding seacock closure, with all control valves operating to provide a momentary pulse of air to the rotary actuators and then return to a neutral position, leaving the actuators free for further control. Moreover, an operator is free to manually close a valve in the event that the pneumatic system fails.

Abstract: A disc valve hydraulic motor assembly is disclosed that includes a rotary valve that rotates in accordance with the motor output shaft and in which a two-pole bolt magnet is mounted in alignment with the center of the rotating valve to rotate with the rotating valve. The end housing of the disc valve hydraulic motor that is spaced from and disposed beyond the rotating valve is provided with a central opening aligned with the magnet. A stainless steel plug is interposed between the sensor and the interior of the motor so that the sensor is separated from the high pressure hydraulic fluid.

Abstract: The present invention concerns a valve for a home cappuccino maker of the type comprising a boiler and a collector having a column. The valve comprises a valve body, coupling means suitable for fixing the valve to coupling means of the column, and a shutter mobile between a closed position and an open position of a duct. The valve also comprises a basket suitable for cooperating with the coupling means of the column and with the shutter.

Abstract: An actuator system (14) comprising a valve assembly (40) having an inner spool (50), an outer spool (60), and a sleeve (70). An assembly (80) directly drives the inner spool (50) to move it relative to the outer spool (60), and thereby hydromechanically causes the outer spool (60) to move relative to the sleeve (70). A control assembly (90) provides current input to the drive assembly (80), which converts current input into mechanical motion. The control assembly (90) senses the position of the inner spool (50) and regulates current in accordance with the sensed position.

Abstract: A fluid spray apparatus, such as a multi-function showerhead, produces a pulsating spray pattern by rotation of a turbine in a chamber under the force of the fluid flowing through the fluid spray apparatus. A portion of the fluid flowing through the fluid spray apparatus is used to create a fluidic bearing so that the turbine does not contact a wall of the chamber during normal operation of the fluid spray apparatus.

Abstract: A valve actuation assembly includes a housing and a vane connected to a shaft. The vane is at least partially disposed within the housing. The valve actuation assembly further includes a valve assembly connected to the housing and a feedback device connected to at least one of the vane and the shaft. The feedback device is configured to apply a feedback force to the valve assembly.

Abstract: An actuator assembly including an actuator housing assembly having a piston rod and a piston body disposed at least partially therein and in substantial linear alignment. A linear variable differential transducer (LVDT) is coupled to the piston rod to provide linear positioning and configured to eliminate rotation of the piston rod. A rotational coupler, in the form of a helical groove and reciprocating guide member, couple the piston rod to the piston body. The rotational coupler is configured to translate linear displacement of the piston rod into rotation of the piston body. A valve shaft is positioned in substantially linear alignment with and surrounding at least a portion of the piston body. A magnetic rotational coupler couples the piston body to the valve shaft. The magnetic rotational coupler is configured to create a magnetic field that translates rotational displacement of the piston body into rotation of the valve shaft.

Abstract: A locking assembly is provided to simply and effectively prevent any unintentional adjustment of the adjustable valve mechanism in a fluid flow control device, without compromising the function of the device. The locking assembly generally includes at least one gripping arm for frictionally engaging at least a portion of the adjustable valve mechanism, and an actuating mechanism for controlling the deployment and release of the gripping arm. The locking assembly prevents unintentional adjustments that can adversely affect the pressure settings of the fluid flow control device. In particular, the locking assembly prevents unintentional adjustment, such as may be caused by the presence of a strong external magnetic field. The locking assembly can be easily disengaged, such as through the application or removal of an external mechanical force, to allow a clinician to adjust the pressure settings of the fluid flow control device as necessary.

Abstract: A liquid filter cartridge system includes a housing, a valve body, a valve actuator, a filter, an inlet passage having a portion extending through each of the valve body and the valve actuator and into the filter, and an outlet passage having a portion leading out of the filter, and extending through each of the valve actuator and the valve body. An interface is located between the inlet passage portions in the valve actuator and the filter and an interface is located between the outlet passage portions in the valve actuator and the filter. The inlet passage interface and the outlet passage interface may lie in the same plane as each other. They may each comprise a face seal comprising an axial seal between the valve actuator and the filter. They may each comprise a seal between the valve actuator and the filter, wherein the two seals are sealed via compression and not via sliding contact.

Abstract: A multiple port valve integrated with the function of the sample shut off valve is disclosed. The integration of the sample shut off function eliminates extra plumbing and labor costs associated with a separate sample shut off valve. Additionally, the multiple port valve integrated with the function of the sample shut off valve provides a shorter equilibration time and less tubing volume.

Abstract: A vaned spool type directional control valve used to change a direction of motion of an actuator in an air pressure or oil hydraulic circuit includes a vaned spool having a valve portion and a vane portion integrally formed on a spool shaft. A chamber including a shaft support portion, a valve room, and a vane room is formed corresponding to the vaned spool. Main ports connected to the valve room in the chamber and two vane ports penetrating the opposed sides of the vane room are formed in the directional control valve. The directional control valve is of a pilot operated type so that flow of fluid in a main circuit can be changed by rotating the vane spool using the pressure of a pilot fluid.

Abstract: A valve closure assembly (50) for remotely and automatically closing railway tank car valves (V1, V2, V3, V4) characterized by a series of novel adapters (180, 240, 242, 244, 252, 254) for enabling one valve closure assembly to turn the handles of various different valves, including soft-seat valves and hard-seat valves.

Abstract: A four-way reversing valve includes a valve casing having a plurality of ports through which fluid flows, a valve main body fixedly installed to the valve casing and having a valve chamber in which a plurality of main port connection holes for selectively connecting the ports are formed, a main spool rotatably installed at the valve chamber of the valve main body, for selectively connecting the ports according to a rotation position, and a spool driving unit for reversibly rotating the main spool by using part of fluid supplied through one of the ports in the valve casing. Thus, the number of welding points is minimized by incorporating the overall pilot valves and excluding additional capillary connection for the pilot valves. Also, manufacturing thereof is made easy and, during the manufacturing and use thereof, the rate of breakdown due to defective welding can be remarkably reduced.

Abstract: The invention provides a cryogenic valve device comprising a valve body in which a cryogenic fluid flows, and a valve member disposed in the duct and connected to a control rod for moving the valve member between a closed position and an open position so as to control the flow rate of the cryogenic fluid. The device further comprises a pneumatic actuator having a chamber containing a piston in connection with the control rod, the chamber being fed with control gas to position the piston in a determined position. The actuator is fixed to the valve body via a chamber interposed between the actuator and the valve body in such a manner as to decouple the actuator thermally from the valve body so as to maintain the temperature of the actuator, and consequently the temperature of the control gas, at a temperature that is intermediate between the temperature of the valve body and ambient temperature.

Abstract: A circuit (10) for operating a bi-directional air motor (12) of a valve closure system for enabling a tank valve to be discretionally operated to either open or closed condition either at the tank by attending personnel or from a remote location, with the capability of closing the tank valve in the event of emergency from a remote location in the absence of attending personnel. The circuit can be constructed using two commercially available valve assemblies ((24, 26).

Abstract: A display device capable of switching over between vertical and horizontal display on a screen without using a frame memory is provided. A display device has a source signal line driver circuit (102), a first gate signal line driver circuit (103), and a second gate signal line driver circuit (104). The scanning direction of the first gate signal line driver circuit (103) is perpendicular to the scanning direction of the source signal line driver circuit (102), and the scanning direction of the second gate signal line driver circuit (104) is perpendicular to the scanning direction of the first gate signal line driver circuit (103). During normal display, vertical scanning of the screen is performed by the first gate signal line driver circuit (103). Images are displayed in a direction that is in accordance with the scanning direction of the first gate signal line driver circuit (103).

Abstract: Actuators for subsea downhole chokes have tended to include hydraulic pistons which are prone to failure and crude in accuracy. The invention provides an actuator (1) having first and second rotary motors (2, 16) and an output region (3) arranged to engage a load, such as a choke sleeve. In a first mode of operation, the first rotary motor (2) imparts linear motion to the output in a first screw connection (4, 5). In a second mode of operation, the second rotary motor (16) imparts linear motion to the output via a second screw connection (12, 14). The provision of screw connections permits gradual linear motion of the output to be achieved. The provision of two motors permits continuing performance in the event of failure of one of the motors.

Abstract: A valve system (10) that employs a piezo-electric element (38) to activate a fluid flow valve (18) so as to use a minimal amount of electrical energy. The piezo-electric element (38) activates a pilot pressure valve (36), which allows a control fluid to pass to a main control valve (44). The control fluid causes the main control valve (44) to activate a working element (16), which in turn operates the fluid flow valve (18). A switching assembly (70) is employed to activate the piezo-electric element (38). The switching assembly (70) can include various types of switching devices, such as RF switching devices, optical switching devices, infrared switching devices and low voltage electrical switching devices.

Abstract: A valve assembly that is useful for controlling fuel delivery utilizes turbine power available from the steady state fuel flow within the valve assembly. A turbine element, which is moved by the steady state fuel flow, provides a motive force to a valve element that controls fuel delivery through selected outlet members of the valve arrangement. A rotating cage valve member preferably is coupled with the turbine element so that the valve member rotates responsive to movement of the turbine element. A controller determines the rate of rotation of the valve member and selectively controls a braking actuator to control the movement of the turbine element and the valve member.

Abstract: Disclosed is a pneumatic actuator which includes a housing comprised of two halves and having at least two passages defined therethrough, including a “loop” groove defined in an inner peripheral wall of the housing into which a seal member is inserted. A rotary piston is rotatably received in the housing. The piston has a top and a bottom with an intermediate wall connected there between, and an actuating shaft extending through the housing, which is rotated by movement of the rotary piston. The seal member extends into the housing and is in contact with the top and bottom of the rotary piston all the times. The rotary piston moves free of contact with the interior surface of the housing and this one seal member provides a seal for the joint created between the halves of the housing, the chambers of the housing as well as the actuating shaft. Movement of the piston is effected by air pressure and return motion of the piston can be air driven or spring assisted.

Abstract: A simple method for preventing oxidization of an aluminum surface of terminal electrode, increase of pressure contact resistance, unstability and reduction of connection reliability is provided. In a terminal electrode part on a reactive matrix substrate, for being connected to an external drive circuit, connecting electrodes are formed by using aluminum or an aluminum alloy, at least their surfaces connected to TCP are covered with an insulating film of aluminum oxide or consisting of a laminate film of aluminum oxide aluminum hydroxide, and the insulating film is selectively removed in a step subsequent to the final step in a cell formation process. In this way, adverse effects of the heat treatment processes such as the annealing in the array formation process and the orientation film sintering of the cell formation process and the oxidization of the connecting electrode surface in the washing.

Abstract: A solid imaging device comprises a substrate including a semiconductor layer, a middle layer and a support layer, multiple pixels that each have a photoelectric conversion unit that includes a diffusion layer formed on the surface of the semiconductor layer, and insulating areas that are located such that they reach from the surface of the semiconductor layer to the middle layer and work together with the middle layer to electrically separate the pixels from each other.

Abstract: Disclosed is a pneumatic actuator which includes a housing comprised of two halves and having at least two passages defined there through, including a “loop” groove defined in an inner peripheral wall of the housing into which a seal member is inserted. A rotary piston is rotatably received in the housing. The piston has a top and a bottom with an intermediate wall connected there between, and an actuating shaft extending through the housing, which is rotated by movement of the rotary piston. The seal member extends into the housing and is in contact with the top and bottom of the rotary piston all the times. The rotary piston moves free of contact with the interior surface of the housing and this one seal member provides a seal for the joint created between the halves of the housing, the chambers of the housing as well as the actuating shaft. Movement of the piston is effected by air pressure and return motion of the piston can be air driven or spring assisted.

Abstract: A pair of rotary pistons each have a drive shaft connectable therewith through respective one-way mechanisms. Each of the clutch mechanisms has a wrapped spring member surrounding the shaft and a linearly moveable piston to effect an operative connection between the wrapped spring and the shaft. Each linearly moveable piston controls fluid flow to one of the rotary pistons such that the linearly moveable piston will enforce actuation of the wrapped spring prior to the introduction of fluid pressure at the respective rotary piston.

Abstract: In producing a semiconductor device by annealing with laser light irradiation, while a linear laser light is scanned in a direction perpendicular to a line, the annealing is performed for a semiconductor material. In this state, since an anneal effect in a beam lateral direction corresponding to a line direction is 2 times or more different than that in the scanning direction, a plurality of semiconductor elements are formed along a line direction in which the linear laser light is irradiated. Also, a line direction connecting the source and drain region of a thin film transistor is aligned to the line direction of the linear laser light.

Abstract: A valve closure system for rotating a rotatable actuator of a valve relative to a body of the valve to operate the valve from open to closed. The system contains a motor having a rotatable shaft, a mounting that comprises plural parts including a bracket, for associating the motor with the valve, and a coupling for coupling the motor shaft to the valve actuator to impart rotation of the motor shaft to the valve actuator to operate the valve closed. The bracket comprises a plate having a surface defining a notch that has a) an entrance at a perimeter of the plate and b) a shape enabling the plate to associate with the valve body by i) disposing the plate alongside the valve body with the notch entrance aligned with the valve body and ii) then moving the plate laterally of the valve actuator axis to cause of the valve body to pass through the notch entrance and enter the notch.

Abstract: A pneumatically operated reciprocating pump and pneumatic control means therefor having in separate chambers a geared air flow control mechanism and a piston/piston rod sub-assembly. The geared air flow control mechanism has two toothed gear members, the first being quasi-circular with upper and lower fins and the second being semi-circular and having two sealing members and fins attached thereto. The gear members are mounted in tooth meshing relationship within a gear chamber disposed above the piston chamber. Two sealable passages connect the gear chamber to the piston chamber, one passage communicating directly with that portion of the piston chamber above the piston and the other communicating by means of an external tube system with that portion of the piston chamber beneath the piston. The gear having the two sealing members attached thereto is disposed so that each sealing member will alternately properly seal a corresponding sealable passage when the gear is sufficiently rotated thereto.

Abstract: A gas motor actuator is provided for opening or closing an actuated valve, such as a pipeline valve, using power gas, which is a gas under pressure. The gas motor actuator includes a gas turbine motor, a high-volume shuttle valve coupled to the gas turbine motor, and a pair of control-limit valve assemblies for delivering power gas to the shuttle valve. One control-limit valve assembly is for opening the actuated valve, and the other is for closing the actuated valve. The gas motor actuator can receive a signal to open or close the actuated valve, which allows pilot gas to open a control valve portion of one of the control-limit valve assemblies, allowing power gas to pass through the control portion to the shuttle valve. The power gas passes through the high-volume shuttle valve, through the gas turbine motor, and back to the shuttle valve for discharge as an exhaust. The power gas rotates a shaft in the gas turbine motor, which, through gears, opens or closes the actuated valve.