Class / Patent application number | Description | Number of patent applications / Date published |
251129030 | With nonelectrical actuator | 50 |
20080265193 | Automatic flush actuation apparatus - An automatic flush actuation apparatus, which is incorporated with a flushing system having a water inlet, a water outlet, and a water chamber communicating therebetween, that includes a valve member being moved by a flush lever for releasing the water pressure within the water chamber to allow the water passing from the water inlet to the water outlet, and a sensor-operated powering assembly including a relief valve provided at the valve member for controlling the water flowing to the water outlet and an actuator arranged in such a manner that while sensing a presence of a user of the flushing system, the actuator is driven to move the relief valve to an opened position for releasing the water pressure within the water chamber to allow the water passing to said water outlet. | 10-30-2008 |
20080315139 | Variable Torque Valve Actuator - The invention provides an actuator for moving a threaded valve stem along a longitudinal axis to selectively open or close a valve. The actuator comprises a carrier rotatably mounted within a housing. A portion of the carrier has a bore threaded to receive the threaded valve stem. The actuator further comprises a gear arrangement configured for transmitting a rotational force to the carrier. A cylindrical operator rotatably mounted to the housing has a plurality of splines on its circumference and is configured for receiving a rotational input force from a drive mechanism. An annular collar slidably disposed around the operator rotates with the operator but can slide longitudinally along the operator between a first position in which it engages the gear arrangement and a second position in which it engages the carrier. | 12-25-2008 |
20090078896 | Magnetic valve with manual override - Proposed is a magnetic valve with manual override, through the actuating element of which a magnetic core that serves as a valve element or that is connected to a valve element can be shifted from an off position into an operating position without excitation of a magnetic coil system assigned to it. To detect the position of the magnetic core that is held in the operating position by the manual override there is provided a coil current monitoring device that monitors the rise of the coil current after the magnetic coil system has been switched on, which device has a detection device for detection of the absence of a drop in current as formed by movement of the magnetic core after being switched on and a signaling device for electrical signaling of a position of the magnetic core that is held in the operating position by the manual override if said drop in current is absent. | 03-26-2009 |
20090090880 | Power Generation for Valve Actuators - The present invention utilizes operation of a valve actuator to generate electrical power. A portion of the mechanical energy generated by operation of a valve actuator is converted to electrical energy. The mechanical energy may be converted to electrical energy at the same time as the valve actuator is operating or the mechanical energy may be stored for later conversion. A valve actuator may be operated manually, electrically, pneumatically, or hydraulically. Generated electrical energy may also be stored. | 04-09-2009 |
20090179164 | CONTROL VALVE, AND CONTROL VALVE FOR VARIABLE DISPLACEMENT COMPRESSOR USING THE CONTROL VALVE - [PROBLEMS] To provide a small-sized control valve in which a pressure introduced into a pressure-sensitive part can control a valve opening according to the small change of thrust by a solenoid. | 07-16-2009 |
20090194720 | Control system for a gas cooking device - “Control system for a gas cooking device or any other gas device comprising at least one gas burner ( | 08-06-2009 |
20090309052 | METHOD AND DEVICE FOR OPERATING AN ELECTROPNEUMATIC VALVE - The disclosure relates to a method and device for operating an electropneumatic valve for driving a pneumatic actuator drive to activate fittings in automation systems. The valve has at least one electropneumatic transducer and a pneumatic booster. The pneumatic booster has at least one 3/3 way valve with a blocking center position for optionally connecting an air inflow duct or an air outflow duct to a connecting duct, which connects to the actuator drive. The ducts are activated as a function of an electrical actuation signal by the electropneumatic transducer. At least one position of the 3/3 way valve with a blocking center position is measured and a correction value of a variable of the actuation signal is determined based on the measured value and the electrical actuation signal. | 12-17-2009 |
20090321670 | Quick connection device for electric spray gun - An electric spray gun includes a barrel having a positioning member received therein which includes two guide slots and two respective holes are defined through two sidewalls of the positioning member and communicate with the two guide slots. A cylinder is fixedly connected with a cover which is connected to a container and the cylinder is slidably connected to the positioning member. Two recesses are defined in two sides of the cylinder and two pawls are pivotably connected to the two sidewalls of the positioning member. Each pawl includes a first end and a second end, the first end of each pawl extends through the hole and engaged with the recess corresponding thereto. The first end can be pivoted out from the recess by pressing the second end of each of the pawls when the cylinder is slid in the guide slots. | 12-31-2009 |
20100012870 | Remote gas line shut-off valve - A device for actuating a pneumatically operated gas-line shut-off valve is disclosed. The device comprises a shape memory alloy wire that is actuated by the application of electrical current. When the shape memory alloy wire is actuated, it opens a spring loaded air exhaust valve that releases the pneumatic pressure holding the gas-line shut-off valve in the open position. The shape memory alloy wire can be activated with an electronic remote control device or through direct wiring thereto. | 01-21-2010 |
20100012871 | Remote Gas Line Shut Off Valve - A device for actuating a pneumatically operated gas-line shut-off valve is disclosed. The device comprises a shape memory alloy wire that is actuated by the application of electrical current. When the shape memory alloy wire is actuated, it opens a spring loaded air exhaust valve that releases the pneumatic pressure holding the gas-line shut-off valve in the open position. The shape memory alloy wire can be activated with an electronic remote control device or through direct wiring thereto. | 01-21-2010 |
20100038569 | ELECTRIC CONTROL VALVE - An electric control valve provided in the present invention has a valve gate and a control actuator including a middle seat ( | 02-18-2010 |
20100044603 | Coupler Including Electrical And Pneumatic Interfaces - A coupler including electrical and pneumatic interfaces. The coupler includes a manifold having pneumatic apertures and a support having connector apertures to accommodate one or more valves. | 02-25-2010 |
20100051840 | FLOW CONTROL VALVE - Provided is a flow control valve including: a valve body including a flow passage; a first poppet being fixed within the valve body, and including an inlet port through which a fluid flows in and an outflow hole through which the fluid flows out to the flow passage; a second poppet being fixed within the valve body, and including an outlet port through which the fluid flows out and an inflow hole through which the fluid flows in from the flow passage; a sleeve sliding along the first poppet to close the outflow hole and regulate an area thereof; and a spool being disposed between the first and second poppets to be slidable along the first and second poppets, being elastically supported by the second poppet, and sliding due to a pressure of the fluid flowing in the first poppet to close the inflow hole and regulate an area thereof. | 03-04-2010 |
20100133455 | MANUAL AND AUTOMATIC DRIVING SYSTEM FOR VALVES, FIXING JOINT FOR SUCH SYSTEM AND SUPPLYING KIT THEREOF - The driving system according to the invention comprises a motor-driven actuator ( | 06-03-2010 |
20100181511 | ACTUATOR FOR A PILOT FOR HYDRAULIC CONTROL VALVES - An actuator for a pilot for a hydraulic control valve including a direct-current servo-motor ( | 07-22-2010 |
20100187456 | Adjustment Device for an Open-Close Valve - An adjustment device for an open-close valve ( | 07-29-2010 |
20100207044 | CAM VALVE - In a step motor driven cam valve a stem freely ascends and descends within a body having an in-flow passage, an out-flow passage, a valve chamber, and a valve seat. The stem is descended by an actuator, composed of a step motor and a cam mechanism located at a position above the stem, that changes a rotational motion of the step motor to a linear motion and transmits the linear motion to the stem. A diaphragm within a valve chamber or a valve body at a lower end part of the stem rests on the valve seat. A lift support mechanism that supports the actuator to freely ascend and descend is arranged at a bonnet that covers the valve chamber. A height fine-adjustment mechanism, arranged at the lift supporting mechanism, finely adjusts the height of the actuator relative to the stem so as to perform zero-point adjustment of the valve. | 08-19-2010 |
20100301243 | ROTARY CONTROL UNIT, IN PARTICULAR NOMINAL VALUE ROTARY CONTROL UNIT, FOR A VEHICLE HEATING SYSTEM AND IN PARTICULAR VEHICLE AIR CONDITIONING SYSTEM - The rotary control unit to which the invention relates, in particular nominal value rotary control unit for a vehicle heating system and in particular vehicle air conditioning system, is provided with a rotatable rotary control element ( | 12-02-2010 |
20110001070 | Device and Method for Determining a Failure Mode of a Pneumatic Control Valve Assembly - A control valve assembly is capable of diagnosing malfunctions in the control valve assembly and discerning a location of a control fluid leak in the control valve assembly. The control valve assembly includes a control valve, an actuator and a positioner. The actuator includes an actuator vent in an actuator housing, the actuator vent being connected to a flow switch. By determining a flow condition through the actuator vent, the positioner determines whether a control fluid leak is located in a control line or in a diaphragm. | 01-06-2011 |
20110012040 | FLAME SAFETY SYSTEM FOR IN SITU PROCESS ANALYZER - A method of operating a process a combustion analyzer having a measurement cell is provided. The method includes exposing the measurement cell to exhaust of a combustion process where fuel and oxygen are combined in a burner to produce a flame. The measurement cell is heated to a temperature above a flashpoint of the fuel. When a condition is detected, such as a fault or abnormal situation, gas is directed to the measurement cell to form a gaseous barrier between the measurement cell and unburned fuel while the detected condition exists. Once the condition abates, the gas flow is disengaged and process combustion gas measurements are provided | 01-20-2011 |
20110037005 | HOLD OPEN CONFIGURATION FOR SAFETY VALVE AND METHOD - An actuator and counterbalance system including a nonmobile carrier; a mobile carrier, mobile relative to the non mobile carrier; and a counterbalance system in operable communication with the mobile carrier and configured to counterbalance less than 100 percent of a return force of a tool actuated by the actuator and method. | 02-17-2011 |
20110101258 | Motorized automate/manual push button system - A driving mechanism, mounting to a flush apparatus, includes an actuation housing coupling with a valve body, a manual actuation unit including a push button and a manual plunger arm transversely extended from the push button towards a pushing platform, and an automated actuation unit including a motorized unit and an automated plunger arm transversely extended towards the pushing platform. When the push button is manually pressed, the pushing platform is pushed by the manual plunger arm to move a diaphragm member at the unsealed position. When the motorized unit is activated in responsive to a presence of a user, the automated plunger arm is driven by the motorized unit to move towards the pushing platform, such that the pushing platform is pushed by the automated plunger arm to move the diaphragm member at the unsealed position. | 05-05-2011 |
20110127453 | BURGLAR PROOF LIQUID SPRAYING DEVICE - A burglar proof liquid spraying device comprises a circuit board; a liquid bottle storing spraying liquid and high pressure gas; the spraying liquid will cause a person not to act in certain time period as the liquid is sprayed on a body of a person; the liquid bottle | 06-02-2011 |
20110140017 | Fast Valve Actuation System for An Automatic Transmission - A fast valve actuation system for an automatic vehicle transmission includes a pair of spring-biased shift valves. Solenoids control the application of pressurized hydraulic fluid to the head of each of the shift valves. Each shift valve has at least one port that is coupled to a fluid chamber of a torque transferring mechanism of an automatic transmission. The position of each of the shift valves determines whether its ports are connected with fluid pressure. Fluid passages connect the head of each shift valve to the spring pocket of the other shift valve. | 06-16-2011 |
20110140018 | VALVE WITH AN ACTUATOR - The invention refers to a valve, in particular a pneumatic valve with a tappet or nipple provided on an actuator member that opens or closes a passage opening for a medium depending on the position of the actuator. A tappet is provided the spring of that presses the tappet or nipple on the passage opening in the closed position. | 06-16-2011 |
20110297855 | Motorized automate/manual push button system - A driving mechanism, mounting to a flush apparatus, includes an actuation housing coupling with a valve body, a manual actuation unit including a push button and a manual plunger arm transversely extended from the push button towards a pushing platform, and an automated actuation unit including a motorized unit and an automated plunger arm transversely extended towards the pushing platform. When the push button is manually pressed, the pushing platform is pushed by the manual plunger arm to move a diaphragm member at the unsealed position. When the motorized unit is activated in responsive to a presence of a user, the automated plunger arm is driven by the motorized unit to move towards the pushing platform, such that the pushing platform is pushed by the automated plunger arm to move the diaphragm member at the unsealed position. | 12-08-2011 |
20120032100 | CLUTCH APPARATUS FOR ELECTRIC VALVE ACTUATOR - Disclosed is a clutch apparatus for an electric valve actuator, in which, where a manual handle is operated by an operator in a state that a power supply is stopped in a main motor, a coupling state between the manual handle and the main motor is released and the main motor is separately driven during a re-supply of the power, whereby preventing a safety accident of the operator of the manual handle. | 02-09-2012 |
20120145934 | Switch device for water conduit valve - A switch device for water conduit valve comprises a valve body having a water inflow passage bifurcated to form more than one water outflow passage, a first water inlet and a second water inlet disposed between the water inflow passage and the water outflow passage, a magnetic valve switch device connected to the first water inlet and a manual control switch device connected to the second water inlet to provide a user to freely select controlling water flow that is introduced into the water outflow passage from the first water inlet or the second water inlet through any switch device. | 06-14-2012 |
20120175538 | INTERNALLY POWERED EARTHQUAKE TRIGGERED AND ELECTRICALLY CONTROLLABLE SHUTOFF VALVE - An earthquake triggered and electronically controlled shutoff valve for allowing or preventing a flow of a fluid. The shutoff valve incorporates a weight positioned on a pedestal and disengaged from a surrounding moveable tube. Upon sufficient vibrational force, the weight moves from its resting position on the pedestal and engages with the moveable tube to block the flow of the fluid through the shutoff valve. In addition to vibrational forces, the shutoff valve may be electronically triggered via a connector electrically connected to one or more solenoids positioned within the shutoff valve. The solenoids may engage with the weight upon electrical stimulation or may engage with a moveable member coupled to the moveable tube. An energy storage unit provides power for the solenoids such that the solenoids may function in the absence of external power to the shutoff valve. | 07-12-2012 |
20120199767 | ACTUATOR AND POSITION-DETECTING METHOD THEREFOR - In an actuator, an electric power supply to a position-detecting detector for an object to be driven can be carried out in a timely manner during a power failure to thereby suppress an electric power consumption in the position-detecting detector, whereby duration time of a power-failure compensation battery can be prolonged, and a variety of detectors can be selected and utilized without limitation in accordance with a use environment and usefulness. During the power failure, a switching means | 08-09-2012 |
20120211685 | PNEUMATIC ACTUATOR AIR FLOW CONTROL SYSTEM - A pneumatic actuator air flow control system includes a pneumatic rotary actuator (PRA) and a solenoid air flow control valve (SAFCV). The PRA contains an air reservoir and a vane housing allowing pressurized air to rotate an air-driven vane. The SAFCV includes a flow control valve body (FCVB), a pilot solenoid valve (PSV) and a switch system, wherein the FCVB and the PRA can be connected to direct the pressurized air into the air reservoir, and the PSV is used to control the pressurized air in and out of the PRA to change the vane's rotation movement in the vane housing. Additionally, the switch system allows users to switch between a double-acting and fail-safe operation. When there is no pressurized air and/or electrical power and if an emergent need to open or close the valve, a manual override in the PSV can be used without further installation of a declutchable manual gear operator or external piping when there is no pressurized air and/or electrical power. | 08-23-2012 |
20120228533 | DEVICE FOR THE FLOW CONTROL OF A LIQUID OR GASEOUS MEDIUM - A device for a flow control of a liquid or gaseous medium, in particular for metering a fluid to be admixed into an exhaust gas treatment system, contains an electromagnet which has a solenoid coil with a magnetic core and an end-side magnetic plate in a magnet housing, and actuates a valve element in a valve compartment of a valve body to control a valve seat located there. The solenoid coil is protected against deformation with respect to the valve compartment, and is sealed using a sealing device. | 09-13-2012 |
20120256109 | Magnetic Valve and Driver Assistance Device having such a Magnetic Valve - A magnetic valve includes a main body and a closure element, which is connected to an end region of the main body and which can be impinged by a fluid pressure. The main body has at least one first support surface allocated to the closure element in the end region thereof. A support element is provided, which is connected to the main body and has at least one other second support surface serving as a bearing surface or forms the bearing surface together with the first support surface. The bearing surface is larger than the first support surface. | 10-11-2012 |
20120280155 | ACTUATING DEVICE FOR HOUSED OR HOUSINGLESS VALVES - The invention relates to an actuating device for housed or housingless valves; in particular for valves for pipelines for transporting liquid or gaseous medium, preferably for pipelines above a nominal diameter of DN 100 or channels, having a drive motor, having a gearing ( | 11-08-2012 |
20130001449 | ELECTRONIC HYDRAULIC PRESSURE CONTROL APPARATUS AND METHOD USING VARIABLE BEHAVIOR - The present disclosure relates to an electronic hydraulic pressure control apparatus and an electronic hydraulic pressure control method using a variable behavior, and more particularly, to an electronic hydraulic pressure control apparatus and an electronic hydraulic pressure control method using a variable behavior which can detect that a user manipulates an electronic joystick of an electronic hydraulic system to positive and negative positions with respect to a neutral point in a preset time period, and vary a behavior (for example, a general behavior or an abrupt operation behavior) according to the detection result, thereby enhancing both comfortableness of an operator and an abrupt operation efficiency in manipulating a construction machine and providing a convenience for an operator. | 01-03-2013 |
20130075636 | Solenoid Bypass System for Continuous Operation of Pneumatic Valve - A solenoid valve assembly capable of providing a continuous flow of pressurized inert gas to operate a process tool without interruption. A system comprising the solenoid valve assembly is also provided. | 03-28-2013 |
20130175463 | LEAK-FREE ROTARY VALVE WITH INTERNAL WORM GEAR - A rotary valve assembly composing a leak-free enclosure containing a worm gear and a pinion gear, an adapter plate that is situated between a rotary valve body and the enclosure and that secures the rotary valve body to the enclosure, and a magnetic actuator assembly. The worm gear engages with the pinion gear such that when the worm gear relates, the pinion gear rotates as well. The enclosure is situated between the magnetic actuator assembly and the rotary valve body. A shaft extends through the center of the pinion gear and causes a valve within the rotary valve body to open and close based on rotation of the shaft. In an alternate embodiment, the invention is a rotary valve as described above with an integral adapter plate. | 07-11-2013 |
20130193358 | ELECTROMAGNETIC VALVE EQUIPPED WITH MANUAL OPERATION ELEMENT INCLUDING SAFETY DEVICE - On an outer surface of an electromagnetic valve body, a manual operation element is provided slidably horizontally, and a slide member is provided slidably in a direction orthogonal to a sliding direction of the manual operation element. The slide member is movable to a lock position and a non-lock position. At the lock position, the slide member is retained by the manual operation element to lock the manual operation element at a non-switch position. At the non-lock position, the slide member unlocks the manual operation element to allow the manual operation element to move toward a switch position. | 08-01-2013 |
20130264504 | REMOTELY OPERATED SHUTOFF VALVE - A remotely operated safety valve is provided for terminating flow through the valve. The safety valve includes an electromagnet for holding the safety valve open, and a swing plate for closing the safety valve. A power supply is provided for powering the electromagnet, and an electrical conductor extends between the shutdown switch, the power supply, and the electromagnet. A connector spaced along the conductor is separable during a separation of a towing vehicle from the towed vehicle. The safety valve automatically closes in response to one of activation of the shutdown switch or the termination of power to the electromagnet. | 10-10-2013 |
20130313453 | Solenoid Valve - A solenoid valve for controlling a fluid has a first housing part ( | 11-28-2013 |
20140001384 | MANUAL VALVE OPERATOR WITH OVERRIDE CLUTCH APPARATUS | 01-02-2014 |
20140054478 | SYSTEM AND METHOD FOR MANUALLY OVERRIDING A SOLENOID VALVE OF A FAUCET - A system for manually overriding a solenoid operated valve in an event of power failure is provided. The system includes a solenoid operated valve and a lifter. The solenoid operated valve includes a valve body including a sealing surface, a fluid inlet and a fluid outlet, a sealing element selectively separating the fluid inlet from the fluid outlet and a solenoid configured to selectively couple and decouple the sealing element to the sealing surface. The lifter is threadedly coupled to the solenoid operated valve. Rotation of the lifter relative to the valve body in a first direction causes the lifter to decouple the sealing element from the sealing surface. | 02-27-2014 |
20140070123 | OPERATING DEVICE - A hydraulic operated valve includes an electromagnetic adsorption mechanism and a steel ball. In the electromagnetic adsorption mechanism, when a current is supplied, an adsorption plate is adsorbed by a solenoid. By this adsorption, a steel ball is pressed against an outer surface of a cam disc. The outer surface of the cam disc includes two steps. When the cam disc is rotated clockwise or counterclockwise, the pressed steel ball engages the two steps. Thus, the cam disc is detented. These two steps are configured such that when the cam disc is returned to a neutral position, the adsorption plate is separated from the solenoid against the pressing of the electromagnetic adsorption mechanism. Thus, the detent state of the cam disc is canceled. | 03-13-2014 |
20140183387 | VALVE ACTUATOR DEVICE, IN PARTICULAR FOR A HEATING OR COOLING SYSTEM VALVE - A valve actuator device ( | 07-03-2014 |
20140264111 | AUTOMATIC VALVE ACTUATOR SYSTEMS - Automatic valve actuator apparatus and valve actuator assemblies are disclosed. The automatic valve actuator apparatus may include a sensor assembly configured to detect a condition and transmit a sensor signal indicating detection of the condition, and a valve actuator assembly configured to be attached to the manual valve and to move the manual valve between open and closed positions. The automatic valve actuator apparatus may additionally include a control assembly configured to receive the sensor signal and to transmit a first control signal to the valve actuator assembly based, at least in part, on the sensor signal. The valve actuator assembly may be further configured to receive the first control signal from the control assembly and to move the manual valve toward the closed position in response to receiving the first control signal. | 09-18-2014 |
20140291561 | MAGNETIC ROTARY ACTUATOR - Disclosed herein is an improved automated impactor turn wheel capable of being activated and used to turn valves from a remote location. In certain instances, the impactor turn wheel is contemplated to turn a ball valve. The improved impactor turn wheel will generate increased torque which will allow improved operation of a ball valve in high pressure applications. | 10-02-2014 |
20140306133 | MANUAL VALVE OPERATOR WITH OVERRIDE CLUTCH APPARATUS - A manual valve operator with override clutch apparatus is disclosed for selectively actuating a valve. The apparatus includes an operator housing defining an enclosure. An input shaft is rotatably supported by the housing and a worm wheel has a first and a second side, the second side of the worm wheel defining a clutch drive. The worm wheel is disposed within the housing and intermeshes with the input shaft such that when the input shaft is driven, the input shaft drives the worm wheel and the clutch drive about a rotational axis. A sleeve has an outer surface which defines an annular groove. The sleeve has a driven end and an output end. The driven end of the sleeve cooperates with the clutch drive of the worm wheel for selective engagement of the clutch drive and the driven end of the sleeve. A clutch actuating handle is rotatably supported by the housing. The clutch actuating handle has a first and a second end. The second end of the clutch actuating handle defines an offset clutch driver which slidably cooperates with the annular groove of the sleeve. The arrangement is such that when the handle is rotated relative to the housing, the offset clutch driver rides within the annular groove for urging the sleeve axially along the rotational axis so that in a first axial disposition of the sleeve, the clutch drive of the worm wheel and the driven end of the sleeve are engaged relative to each other so that the sleeve is rotated by the worm wheel about the rotational axis. However, when the sleeve is disposed in a second axial disposition thereof, the driven end of the sleeve is disengaged relative to the clutch drive of the worm wheel. A driven shaft has a first and a second end, the second end of the driven shaft being connected to the valve. The driven shaft extends coaxially through the sleeve, the driven shaft being keyed to the sleeve such that relative rotation between the sleeve and the driven shaft is inhibited while axial movement of the sleeve relative to the driven shaft is permitted. The arrangement is structured such that when the sleeve is in the first axial disposition thereof, the worm wheel drivably rotates the sleeve so that the rotating sleeve rotatably drives the driven shaft for actuating the valve. Also, when the sleeve is in the second axial disposition thereof, the driven end of the sleeve is disengaged from the clutch drive of the worm wheel so that rotation of the sleeve and the driven shaft keyed thereto by the input shaft is inhibited. | 10-16-2014 |
20150021503 | Pressure Reducer With Flywheel For Closing And Putting Into Service - The invention relates to an on-off valve with a pressure reducer intended to be connected to a gas cylinder. The objective of the invention is to ensure that the device is closed and put into service by way of simple and reliable means at high pressures. A shutter is controlled by a mobile part of the valve with pressure reducer, forming a low-pressure chamber of the device. The shutter is subjected to an elastic force in the closing direction. A working spring of the valve with pressure reducer acts on the mobile part in the opening direction. A rotary control member working over at least one turn makes it possible to compress the working spring into the position in which the valve with pressure reducer is put into service. In the closed position, a plate of pusher of the control member is remote from the working spring. | 01-22-2015 |
20150337872 | HYDRAULIC VALVE WITH ELECTROPNEUMATIC ACTUATOR - A hydraulic valve with electropneumatic activation includes an air inlet that receives pressurized air from an air compressor and directs it into a line of the cylinder. The line is connected to an extension line attached to a solenoid extension valve that allows or blocks the passage of pressurized air from the extension line to a rear line. The rear line is attached to the rear chamber of the cylinder and connected to a retraction line attached to a solenoid retraction valve that allows or blocks the passage of pressurized air from the retraction line to an anterior line, which is attached to the front chamber of the cylinder. Thus, the passage of pressurized air is managed according to the desired movement of the stem of the hydraulic actuator. The pneumatic tubes are eliminated and electropneumatic valves are replaced by solenoid valves incorporated into the cylinder of the hydraulic valve. | 11-26-2015 |
20160097463 | VALVE - A valve device includes a body portion having a plurality of openings, a valve seat located within said body portion, an end stop, corresponding to an opening of said body portion, said end stop comprising a port portion through which fluid may flow, and a nozzle, in fluid communication with said port portion, said nozzle configured for sealing against said valve seat and thereby preventing flow through the valve device, the valve device being openable by relative motion of said nozzle with respect to said valve seat, and adjustment means configured to allow independent adjustment of the location of said nozzle with respect to said valve seat. | 04-07-2016 |