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| Number | Title | Issue Date |
| 8181931 | Mechanically operated hydraulic valve actuator A wellhead assembly includes a valve with a valve actuator. The valve actuator linearly moves a valve stem and valve member assembly to selectively open and close the valve. The valve actuator moves the valve stem by reciprocatingly moving a piston that is attached ... | 05/22/2012 |
| 7448591 | Step ratchet mechanism A step ratchet mechanism that allows for the incremental movement of an assembly that may be adapted to incrementally open or close an adjustable orifice. The step ratchet mechanism may be comprised of a modified body lock ring that permits incremental movement alon... | 11/11/2008 |
| 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 feeding an hydraulic cylinder (1), whose plunger (3), b... | 07/22/2008 |
| 7343927 | Blocking element, especially an explosion protection valve A closing body (3) which is mounted in a housing (2) in such a way that it can be axially displaced and can be pressed out of an opening position against a valve seat (4) into a closing position. The closing body (3) is rotationally symme... | 03/18/2008 |
| 7331561 | Method and an apparatus for selectively releasing air from a mold A method and an apparatus 10 for selectively venting air 98 from the internal cavity 94 of a mold 90. Particularly, the apparatus 90 includes a body 12 having a selectively movable member 30 whose position within the ... | 02/19/2008 |
| 7311153 | Flow-biased sequencing valve A technique that is usable with a well includes providing a sequencing valve to in a first state to communicate a first flow through a first port of the valve and in a second state close fluid communication through the first port. The technique includes communicatin... | 12/25/2007 |
| 7311212 | Display system A display system can accommodate a number of products. The system includes one or more modules. Each module may be mounted on a support wall and includes back and shelf portions. Advantageously, a number of modules are arranged in a number of rows, one row above ano... | 12/25/2007 |
| 7270724 | Scanning plasma reactor A scanning plasma reactor for exciting reactant gases at a substrate surface including a beam forming module, a gas injection module, a reaction chamber with a window and a vacuum chuck, a gas exhaust module. Radiation from the beam forming module and the reactant g... | 09/18/2007 |
| 7204211 | Arrangement of an internal combustion engine poppet valve and an actuator therefor The present invention (with reference to FIG. 1) is an arrangement of an internal combustion engine poppet valve and a hydraulic actuator therefor comprising: an actuator housing (16); spring means (104,105) for biassing the poppet val... | 04/17/2007 |
| 7195224 | Blowout preventer and locking mechanism A blowout preventer having a main body, a ram system with ram apparatus, a movement system with movable shaft apparatus connected to the ram apparatus, the ram apparatus movable from a first open-ram position to a second closed-ram position, the movable shaft appara... | 03/27/2007 |
| 7195225 | Rotary valve assembly The present invention is directed to rotary valve assemblies and, more particularly, to a rotary valve assembly for use in an oil and gas production system. The valve assembly comprises a movable actuator sleeve movable in response to hydraulic pressure and at least... | 03/27/2007 |
| 7155896 | Combustor drain valve A system for draining fuel from the combustion chamber of a gas turbine engine in the event of a false start includes associated passageways and a straight through flow pilot air actuated poppet valve. The valve is normally open and actuated by the pilot air to clos... | 01/02/2007 |
| 7147203 | Fluid control Fluid control apparatus and method of controlling fluid flow. The fluid control apparatus comprises an elongate tube having a first flow opening at an end of the tube and at least one second flow opening along the length of the tube, and a sleeve arranged to slide a... | 12/12/2006 |
| 7117745 | Process seal for process control transmitter A process control instrument for coupling to a process is attachable to a metal flange. The flange has a first passageway adapted to be filled with process fluid. The process control instrument includes a body having an opening adjacent to the first passageway for r... | 10/10/2006 |
| 7080558 | Process seal for process control transmitter A process seal for a process control transmitter is provided. The seal includes a contact region which provides a metal to metal seal against a coupling flange. ... | 07/25/2006 |
| 7069137 | Valve flow metering control system and method A turbine valve control system is provided. The turbine valve control system includes a variable flow metering device, a first sensor, a second sensor, a third sensor, a fourth sensor, memory, and processing circuitry. The variable flow metering device is capable of... | 06/27/2006 |
| 7059545 | Automatic air-assisted manifold mounted gun A coating material dispensing device includes a first component providing a connection to a source of coating material to be dispensed and a filter for filtering coating material to be dispensed. The first component includes a housing for housing the filter and a cl... | 06/13/2006 |
| 7059283 | System and method of retaining hydraulic fluid in a hydraulic valve actuation system Methods and systems for retaining hydraulic fluid in a hydraulic valve actuation system adapted to be installed on an internal combustion engine are disclosed. The system may include a hydraulic fluid supply connected by one or more passages to a fluid accumulator a... | 06/13/2006 |
| 7055607 | Seal assembly for a safety valve Methods and apparatus for sealing a safety valve within a tubular that the safety valve is designed to be landed and set in are disclosed. The valve includes a seal assembly having a seal on the valve that is acted on by a first piston disposed on a first side of th... | 06/06/2006 |
| 7051990 | Blowout preventer and movable bonnet support A blowout preventer which, in certain aspects, has a main body with a main top, a main bottom, and a main bore therethrough from the main top to the main bottom, at least one bonnet releasably secured to the main body, the at least one bonnet containing movable ram ... | 05/30/2006 |
| 7051989 | Blowout preventer and movable ram block support A blowout preventer which, in certain aspects, has a main body and ram block holding apparatus releasably secured to and movable with respect to the main body and/or to a door or bonnet, movable ram apparatus within the body including a ram block, the ram block hold... | 05/30/2006 |
| 7044430 | Lock bars for blowout preventer Lock bars for blowout preventers and blowout preventers having, in certain aspects, a body with a top, a bottom, and a bore therethrough, at least one bonnet releasably secured to the body, a first lock bar recess defined by a first portion in the body and a second ... | 05/16/2006 |
| 7033256 | Abrasive fluid jet machining apparatus A valve for controlling a flow of abrasive particles suspended in a pressurized carrier fluid has at least two apertured valve seats (74, 75) in face to face contact. One of the valve seats (74, 75) may be slid between a first position in which the ape... | 04/25/2006 |
| 7014164 | Device for protection against explosions in pipe-line A shut-off device (1) for protection against explosions in a pipe-line is fitted with a slide valve plate (10) movable transversely to the direction of flow (A). The slide valve plate is connected via a piston rod (25, 26) to a piston (27, 28... | 03/21/2006 |
| 7000890 | Pressure compensated shear seal solenoid valve A pressure compensated shear seal solenoid valve for use in subsea control systems is disclosed utilizing an arcuate cross section fluid passageway to improve flow rates, ease of serviceability and reduce size. ... | 02/21/2006 |
| 6969042 | Blowout preventer and ram actuator A blowout preventer with a main body; a base releasably connected to the main body, the base having a base space therein, the base having a ram shaft opening; a primary piston movably disposed within the base space; a ram shaft to which the primary piston is connect... | 11/29/2005 |
| 6968855 | Air operated fluid control valve This invention relates to an improved air operated fluid control valve which tends to inhibit or impede the travel of a fluid to the air controlled side of the control valve. The air operated fluid control valve includes a control valve having a valve body provided ... | 11/29/2005 |
| 6942192 | Gate valve with flow-through gate A gate valve for controlling the flow of fluid through a component having a fluid flow passage that includes at least a first branch and a second branch, the gate valve comprising a gate cavity which communicates with both the first branch and the second branch; a g... | 09/13/2005 |
| 6935355 | Small scale actuators and methods for their formation and use An actuator assembly and method for making and using an actuator assembly. In one embodiment, the assembly includes an actuator body having an actuator channel with a first region and a second region. An actuator is disposed in the actuator channel and is movable wh... | 08/30/2005 |
| 6899316 | Closure device for vacuum closure of at least one opening in a wall A closure device for a vacuum closure of at least one opening in a wall having a valve place, at least one piston-cylinder unit, at least one carrier unit, at least one cylinder bore hole, at least two sealing rings, and a line. The valve plate is associated with an... | 05/31/2005 |
| 6896236 | Controlled leakage hydraulic damper A hydraulic damper cylinder 270 is provided for an electromagnetic actuated internal combustion engine cylinder valve 20. The damper includes a piston 68 slidably mounted within the damper cylinder 270. The piston 68 bifurcates the... | 05/24/2005 |
| 6896003 | High efficiency low actuation force inlet door An inlet system for an inlet in a flow field includes an inlet recess housing having an interior with forward and rear end walls, a base wall, and an opening formed in an upper surface thereof. An intake duct is formed in a rear end wall of the inlet recess. An inle... | 05/24/2005 |
| 6886511 | Lost motion assembly for a poppet valve of an internal combustion engine A lost motion assembly for a valve of an internal combustion engine includes a cam, a cam piston which is spring biased to follow motion of the cam, a valve piston operatively engaged with a poppet valve, and an auxiliary piston. The cam piston, valve piston and aux... | 05/03/2005 |
| 6871618 | Valve actuating device, and method for controlling same A device and control method for actuating valves of a motor vehicle internal combustion engine including at least a controlled hydraulic actuator actuating the associated valve that is provided in the form of a cylinder. A mobile piston connected to the valve delimi... | 03/29/2005 |
| 6854705 | Flow control valve that may be used for mold temperature control systems A valve is formed to resist snap-action closure forces and provides a smooth closing action to minimize or eliminate water hammer. The valve is opened and closed by modulating the relative air pressures above and below a piston in the valve. Because the air pressure... | 02/15/2005 |
| 6840494 | Gate valve with flow-through gate A closure member for a tubing hanger which is suspended in a tubing spool and which comprises an elongated body having an annulus bore that extends generally longitudinally therethrough, the annulus bore comprising at least a first branch which is in fluid communica... | 01/11/2005 |
| 6775990 | Methods and apparatus for regulating gas turbine engine fluid flow A method enables a gas turbine engine to be operated. The method includes directing fluid flow from a source into an inlet of a valve, channeling the fluid flow entering an inlet portion of the valve towards an outlet portion of the valve such that a direction of th... | 08/17/2004 |
| 6755388 | Pinch valve A pinch valve of the invention comprising an elastic tube body 1, a cylinder body 4 having a cylinder portion 2 and a cylinder cover 3, a piston 11 sliding on the inner periphery of the cylinder body, a pressing piece 15 fix... | 06/29/2004 |
| 6679472 | Pressure balanced choke and kill connector A choke or kill line connector for a subsea blowout preventer stack which is slide member operated to provide pressure balanced design to eliminate the potentially high forces associated with connectors which do not have the complication of a locking conn... | 01/20/2004 |
| 6651950 | Valve for controlling liquids A valve for controlling fluids has a piezoelectric unit (3) for actuating a valve member (2) that is displaceable in a bore (8) of a valve body (9), having at least one control piston (7) and at least one actuating piston (10) for actuating a valve closin... | 11/25/2003 |
