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7540467 |
Actuator assembly with rotational coupler in-line with rotational valve shaft
An actuator assembly including an actuator housing assembly having a linear drive mechanism disposed at least partially therein. A linear variable differential transducer (LVDT) is coupled to the...
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7506662 |
One-way fluid valve
An improved one-way fluid valve construction is provided. A valve housing ( 102 ) includes one or more valve ports ( 108 ) and control ports ( 110 ). A control member ( 304 ) is disposed within the...
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7401759 |
Single-effect submarine actuator for operating valves
The invention relates to the field of the submarine valve actuators, and specifically to those actuators, that in order to effect a standard valve closing operation are connected to an oleo system...
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7390310 |
Shunt valve locking mechanism
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...
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7303176 |
Controller
Force amplifying means 5 comprises a tapered member 41 extending vertically downward from the lower end of an operating rod 3 , a disk member 42 provided at the upper end of a valve stem 16...
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7266891 |
Method for sealing a throttle valve housing
The present invention is a method where a one-piece throttle valve is fastened to a throttle valve shaft in a first step. In another step, at least one elastic compensating element is placed onto...
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7163194 |
Actuator for rotor valve
An actuator ( 16 ) for a rotor valve ( 10 ). The actuator includes a rack ( 86 ) for driving a pinion gear ( 87 ) of the valve. The rack is moved between first and second positions by the action of...
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7156364 |
Lever drive for a cryogenic valve
A valve assembly for controlling flow of cryogenic fluids is disclosed. In an embodiment, the valve assembly includes a valve housing and a valve member supported at the valve housing for movement...
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6929237 |
Valve actuation system and methods for pipeline valves
The invention is therefore directed to a rotary valve actuating system coupled to a pipeline for a pressurized fluid, the actuating system being coupled to the rotary valve to selectively cause...
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6892752 |
Pipeline isolating device
A pipeline isolating device for istallation into and occlusion of a pressurised liquid or fluid supply pipe comprising a substantially solid and deformable boot ( 1 ) wich is adapted to move...
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6883474 |
Electrohydraulic engine valve actuator assembly
An electrohydraulic valve actuator assembly for an engine includes a movable engine valve, a movable spool valve, and a driving channel interconnecting the spool valve and the engine valve. The...
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6883320 |
Control system regulating air flow to engine intake
A servomechanism for a valve controlling engine intake flow via a cooler and a bypass uses a proportional solenoid operating a hydraulic valve to power a hydraulic actuator setting the position of...
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6880568 |
Pressure relief system with multi-port valve
A pressure relief system is provided to detect and abate an overpressure condition in a pressurized fluid disposed in a conduit. The system includes a valve assembly and an actuator configured to...
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6871833 |
Disc drive shocking station with high speed spool valve actuation
The present invention includes a disc drive shocker having a fast valve which can be moved from a full on position to a full off position within a desired interval of time to impart a shock to a...
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6854478 |
Fluid-controlled valve for pipeline pig
A fluid control valve for a pipeline pig includes a main valve and a mechanism for operating the main valve. The main valve comprises a valve body communicated to a fluid pipe, a main valve core...
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6840493 |
Valve actuator
A valve actuator is provided in which a complementary set of pinions, each driven by a pair of racks, are located on opposite sides of the valve to be actuated. The racks are part of an annular...
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6793194 |
Rotary valve actuator
An actuator for operation of a valve, said actuator comprising tubular housing, which accommodates therein a piston, mounted with possibility for reciprocating linear stroke motion, an operating...
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6789561 |
Excess-flow valve
An automatically operating valve for use for example in a forecourt fuel pump has a body ( 10 ) defining a flow passage ( 20 ) within which is formed a valve seat ( 22 ), the body having a weakened...
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6783114 |
Cable assembly and air outflow valve incorporating the same
An improved air outflow valve having a cable assembly that enhances its reliability. In a particular embodiment, the cable assembly couples the diaphragm to the control arm of the air outflow valve...
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6732996 |
Gas cylinder valve
A gas cylinder valve comprises a valve body ( 10 ) having a valve chamber ( 30 ), an inlet passage ( 28 ) and an outlet passage ( 34 ) therein. An obturating body ( 38 ) is movable relative to a...
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6708946 |
Ball valve
A ball valve ( 10 ) is described which has a ball valve retaining mechanism which, when subject to very slight movement, allows a ball element ( 20 ) to be unloaded off a valve seat ( 48 ) during...
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6698712 |
Ball valve assembly
The ball valve assembly 10 includes a valve body 12 , a ball 14 , a seat ring 30 , a support ring 40 , and an actuator sleeve 50 surrounding the ball and axially moveable within the valve...
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6672565 |
Dual snap action for valves
An actuating means for a valve that is both opened and closed with a snap-action. The bidirectional, bi-stable snap acting valve has adjustable resistive forces governing the snap action of the...
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6651687 |
Pressure relief system with clutch activated valve
A pressure relief system for detecting and correcting an overpressure situation in a pressurized fluid. The system includes a pressure responsive member such as a buckling pin configured to...
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6585227 |
Roller screw actuator for subsea choke or module
An actuator for use with a subsea choke or similar apparatus is disclosed. The actuator uses a planetary roller screw mechanism to allow greater control of the torque output while allowing a fast...
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6581901 |
Automatic vacuum shut-off/noise reduction device
An automatic shut-off of a vacuum line for a tool having a first hose portion and a second hose portion, the portions of hoses being in fluid communication with each other. A first member is...
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6547214 |
Serpentine actuator disk
A serpentine disk lever that can be utilized for surround-type levering in a pneumatically controlled valve actuator for high pressure applications. The design of the serpentine disk lever allows...
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6494434 |
Butterfly valve
A butterfly valve comprises a valve housing with a valve opening and a valve seat, this valve housing enclosing a vacuum area of the valve; a valve plate which is mounted at a valve rod guided...
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6485258 |
Electromechanical actuator for a valve and steam turbine
The invention relates to an electromechanical actuating drive for a valve, in particular of a steam turbine. It has a push rod for setting an opening position of the valve and also an electric...
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6467498 |
City water flushing and sludge prevention control method
For use with a city water system having a plurality of street water mains interconnected by branch water mains and having hydrants connected to the branch water mains, a city water flushing and...
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6416032 |
Expansion valve of an air conditioning system in an automobile
The present invention discloses an expansion valve of an air conditioning system for an automobile which does not employ a conventional method that opens and shuts in response to a motion of a pin...
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6391629 |
Device for the production of an anaerobic, micro-aerophilic or another atmosphere in a closed interchangeable container
The invention relates to a static unit ( 1 ) for the production of anaerobic, micro-aerophilic or other atmospheres (e.g., CO2) in a mobile interchangeable container, which is connected, at a lid...
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6371439 |
Device for adjusting the central position of the pistons and the angular position of the pinion in a valve driving actuator
A device for adjusting the central position of the pistons and the angular position of the pinion in a valve driving actuator comprises a tubular body in which are tightly movably arranged a first...
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6347782 |
Axial actuator
An axial actuator for actuating a valve by rotating the shaft of the valve includes an outer enclosure forming an interior space having an inner enclosure therein. A piston is linearly moveable...
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6338330 |
Device for moving a valve flap
An apparatus for moving a valve flap, especially in the air intake duct of an internal combustion engine, including a vacuum box ( 20 ) which executes a longitudinal movement in dependence on the...
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6302128 |
Bi-directional rotary output actuator
A rotary valve is opened and closed with a combination incremental rachet mechanism and a continuous motor mechanism. Two separate control circuits are used for opening and closing the valve. When...
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6276659 |
Pushbutton controlled valve
A valve has a pushbutton assembly and a piston assembly. The valve has a chamber defined to receive therein the piston assembly and the pushbutton assembly. The piston assembly is controlled by the...
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6237693 |
Failsafe safety valve and method
A subsurface well safety valve having a flow tube telescopically movable in a housing for controlling the movement of a valve closure member. A piston and cylinder assembly actuates the flow tube...
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6231027 |
High torque rotating actuator
A high torque rotating actuator is disclosed. The high torque rotating actuator has a variable helix angle that allows the actuator to generate greater torque near the end of its travel when it is...
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6220566 |
Incrementally positionable ball valve
An incrementally positionable ball valve for use in the fluid circuit of a refrigeration or air conditioning system which can be remotely controlled by a low amperage control signal is disclosed....
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6199822 |
Fluid-operated actuator
A fluid-operated actuator (10) particularly for use in diesel-engined vehicles has a housing (12) defining a cylinder (14) having a cylinder wall (16) extending about a longitudinal axis (18). A...
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6179172 |
Cargo discharge gate
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6155531 |
Proportional control value
A proportional control valve has inlet and outlet solenoids controlling the pressurization and evacuation of a chamber between two pistons in a control valve of the rack and pinion opposed-piston...
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6152229 |
Subsea dual in-line ball valves
A dual in-line ball valve assembly for a subsea tree intervention tool has a pair of axially-movable pistons and a rotatable linkage member pinned between each of the pistons and the independently...
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6135414 |
Ball valve apparatus
Apparatus for coordinating the positions of valves in a pair of air flow passages along a jet engine nacelle to control two rotary valves from a single linear actuator. Each of the valves is of a...
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6113063 |
Actuator and exhaust brake unit thereof
The object of the present invention is to provide an actuator possible to transmit an output from a power rod of the actuator as rotary motion, and to provide an exhaust brake unit using the...
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6098714 |
Hydraulic fluid actuator with metal to metal seals
An improved fluid actuator is provided. The fluid actuator (25) comprises a variable volume fluid chamber (124). A first tube (162) is fixed within the variable volume fluid chamber (124). The...
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6089530 |
Gate valve
A swing gate valve for closing a lateral discharge opening in an elongated conduit includes a swing gate shaped to fit around the exterior of the conduit in an open position adjacent the lateral...
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6086038 |
Linkage locking device
Apparatus primarily for use in seating and unseating a valve by turning the valve stem between a fully opened and fully closed position. In one form of the invention, a lever arm attached to the...
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6085770 |
Remote cylinder valve opener
A method and apparatus for remotely opening a manual valve of a gas cylinder from a remote location. The gas cylinder is first connected to a purge system which is purged of oxygen and pressurized...
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