| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 251157000 | WITH MEANS TO INCREASE HEAD AND SEAT CONTACT PRESSURE | 73 |
| 20080245987 | Valve regulation for turbocharger - The present invention provides a two-stage turbocharger unit having a valve that will help to create a smooth transition of exhaust gas energy from the high-pressure turbine (HP) turbine to the low-pressure (LP) turbine. The LP and HP turbines are positioned such that the valve can be in one position to force all of the exhaust gas to flow through the HP turbine and when in another position to force all of the exhaust gas through the LP turbine. When the valve is placed in an intermediary position, the exhaust gas can be variably directed to flow through both turbines, with the percentage of exhaust gas flowing through each turbine being dependent on the position of the valve. | 10-09-2008 |
| 20090008588 | Shut-Off Device for a Waste-Water Inspection Chamber - The invention relates to a shut-off device for a waste-water inspection chamber which has an upwardly open gutter in its interior with an inlet opening and an outlet opening for the waste-water flow, comprising a shut-off member which is arranged in front of the inlet opening, can be pivoted upwardly through the flow force of the waste-water flow and can be held and released by a magnetic catch, with the magnetic catch tightly holding the shut-off member against the inlet open in the shut-off position and releasing it again on a defined water pressure acting on it in the flow direction for the release of the inlet opening. | 01-08-2009 |
| 20090159826 | VALVE - The present invention relates broadly to a valve ( | 06-25-2009 |
| 20110095218 | CLOSING UNIT FOR A VACUUM VALVE - A closing unit for a vacuum valve includes a first valve plate ( | 04-28-2011 |
| 20110140019 | VACUUM VALVE - For a vacuum valve comprising a valve housing ( | 06-16-2011 |
| 20120104299 | Venturi valve pressure compensator apparatus and method - A venturi valve pressure compensator apparatus and method include a venturi valve with an inlet and an outlet and with a small diameter opening at the inlet and a large diameter opening at the outlet and with an air intake opening. An insert, with a front and a back, is provided such that the front of the insert faces the small diameter opening of the venturi valve. At least one hole is provided in the insert that extends through the insert from front to back. A pressure seal is located at the back of the insert, the pressure seal conformed to seal leaks around the insert and force fluid to flow through the at least one hole. | 05-03-2012 |
| 20130277589 | SUBSEA VALVE SEAT ARRANGEMENTS - A subsea valve comprises a valve gate ( | 10-24-2013 |
| 20140183390 | VACUUM CONTROL VALVE FOR VACUUM DRAINAGE SYSTEM - A valve for a vacuum drainage system includes a valve body having an interior chamber operatively connectable to a suction device and through an outlet to a vacuum source. A movable member having an aperture is secured within the chamber and movable through points between closed and open positions to adjust the open area of the aperture and the fluid flow through the outlet. The aperture is configured such that during adjustment to increase the effective operational area of the aperture, a rate of change of the effective operational area increases non-linearly in relation to a linear increase in the distance of travel, while providing advantageous and more controllable linear adjustment of the applied vacuum. The aperture can have a trilateral shape including at least one curved side, or comprise a plurality of sub-apertures, and the movable member can comprise a rotary sleeve. | 07-03-2014 |
| 251158000 | With positive reduction | 8 |
| 20080302989 | VACUUM GATE VALVE HAVING A LIMB ELEMENT - The invention relates to a vacuum gate valve comprising a closure disk for gas-tight closing of an opening by displacement over the opening and pressing of the closure disk onto the opening. A connecting rod with which the closure disk is coupled is linearly adjustable by means of a linear drive unit and the closure disk is thus displaceable between a position uncovering the opening and an intermediate position in which said disk is pushed over the opening. For pressing the closure disk with its closing side onto the valve seat into the closed position by means of an engagement element, at least two limbs are pivotably mounted at one limb end on the back of the closure disk via a first joint and at the other limb end on a support via a second joint. The limbs, the back and the support form an articulated parallelogram. Each of the limbs forms, with the respective first and second joints, a common integral part which consists of a resilient material, the first joint and the second joint being formed in each case by a thin-walled, flexible section on the limb. | 12-11-2008 |
| 20120298899 | DOOR FOR SEALING AN OPENIING - A door for sealing an opening ( | 11-29-2012 |
| 20130001452 | Vacuum Valve Device and Vacuum Die-Casting Device Using the Same - Provided is a vacuum valve device which is capable of ensuring and maintaining smooth operation of a valve body, and in which an adequate space is ensured as a vacuuming gas flow path, and also provided is a vacuum die-casting device using the vacuum valve device. The vacuum valve device includes a piston rod and a rod seat. The piston rod includes: a rod; a piston formed at one end of the piston rod; and a guide part extending from the piston as far as the rod towards the other end of the piston rod. The rod seat has an insertion hole into which the piston rod is inserted from a first end of the insertion hole and through which the piston rod passes to a second end of the insertion hole. At least a portion of the insertion hole including the first end of the insertion hole forms the gas flow path. The piston is inserted into the first end of the insertion hole when the gas flow path is closed, and the piston is exposed outside of the insertion hole with a portion of the guide part inserted into the first end of the insertion hole when the gas flow path is opened. | 01-03-2013 |
| 20140131603 | VACUUM VALVE - A vacuum valve having a valve rod ( | 05-15-2014 |
| 20140183391 | VACUUM SLIDE GATE VALVE - A vacuum slide gate valve with a drive unit that is formed in such a way that a closure plate, by displacement of at least one valve rod along a longitudinal axis, is displaceable from an open position into an intermediate position, and, by displacement of said valve rod along a transverse axis running at right angles to the longitudinal axis, is displaceable from the intermediate position into a closing position. The valve rod is rigidly connected to a sliding part, which is guided between a first position and a second position parallel to the longitudinal axis, and between the second position and a third position parallel to the transverse axis. A displacement member is mechanically coupled to the sliding part via an inclined connection to displace the sliding part from the first position into the second position and from the second position into the third position. | 07-03-2014 |
| 251159000 | Seat pressed to valve | 1 |
| 20100090145 | VACUUM VALVE - A vacuum valve including a valve body with a valve orifice, a closure member for closing the valve orifice, a first piston-cylinder unit, a second piston-cylinder unit, a first control element, and a second control element. When opening the vacuum valve, a pressure medium line, which applies pressure to the opening cylinder space of the second piston-cylinder unit, is blocked during the first part of the opening process, and is released at the end of the first part of the opening process by the first control element. When closing the vacuum valve, a pressure medium line, which applies pressure to the closing cylinder space of the first piston-cylinder unit, is blocked during the first part of the closing process, and is released by the second control element at the end of the first part of the closing process. | 04-15-2010 |
| 251160000 | Rotary valve | 2 |
| 20140319394 | SPHERICAL OBTURATOR FOR BALL VALVE AND BALL VALVE - Ball valve with a housing which forms an inlet, an outlet and an obturator seat, an obturator which forms an inner cavity with an inlet aperture, an outlet aperture opposite the inlet aperture, an auxiliary aperture between the inlet aperture and the outlet aperture, as well as a closed side opposite the auxiliary aperture. The inlet aperture and the outlet aperture connect the inlet with the inner cavity and with the obturator seat and an outer channel is formed in an outer surface of the closed side which, when the obturator is rotated from a closed position towards an open position, opens a first outer flow passage between the obturator seat and the outlet before the outlet aperture opens a second inner flow passage between the inner cavity and the outlet. | 10-30-2014 |
| 251162000 | Cam or wedge | 1 |
| 251163000 | Encased | 1 |
| 20090159827 | ROTARY GATE VALVE - A rotary knife gate valve includes a gate which rotates above a process flow axis within a pipeline. The valve includes a valve body defining a flow path having in inlet and an outlet and a knife gate channel. A shaft that has a longitudinal axis is positioned within an upper portion of the valve body. The gate has a first end connected to the shaft and positioned within the knife gate channel when the valve is in a closed position and rotationally displaced from the channel when the shaft rotates perpendicular to the shaft axis to open the valve. | 06-25-2009 |
| 251170000 | Seat pressed to valve | 19 |
| 20080230731 | Ball valve with removable means for retaining the axial seal - A ball valve comprising:
| 09-25-2008 |
| 20080315141 | Slit Valve Door - The present invention provides a slit valve for sealing an opening in a chamber, wherein the slit valve includes a door having an interior and an exterior surface. A sealing member is disposed on the interior surface of the door near a periphery of the interior surface of the door, and a portion of the interior surface extends outwardly from the door and into the chamber so as to disrupt a flow of chemicals flowing towards the sealing member from within the chamber. | 12-25-2008 |
| 20110253921 | NEEDLE VALVE ASSEMBLY WITH FLOATING SEAT APPARATUS - A valve assembly includes a valve body defining a valve channel, and a floating seat defining a seat orifice in fluid communication with the valve channel. The valve assembly also includes a needle at least partially disposed within the valve channel. The floating seat is adapted to move relative to the valve body in a manner adapted to accommodate a misalignment between the needle and the floating seat. | 10-20-2011 |
| 20120104300 | COMPOSITE SEAL - A seal ring assembly has a carbon member extending between spaced ends, and with a step at an outer periphery. A ring is received in the step to maintain spaced ends of the carbon member towards each other. A valve disc and shaft, a butterfly valve, and a method of installing a carbon ring seal are also disclosed. In a separate feature, a valve housing for a butterfly valve includes a first housing portion defining a flow passage, and a second housing portion extending integrally from the first housing portion, and defining a space to mount a valve shaft. | 05-03-2012 |
| 20140021391 | TEMPERATURE COMPENSATING FLANGED JOINT FOR A TEFLON DIAPHRAGM VALVE - Apparatus, including a diaphragm valve, is provided featuring a valve body, a diaphragm, a pressure ring, and at least one elastomeric member. The valve body may include a circumferential flange. The diaphragm may include a circumferential gasket portion configured to be seated on the circumferential flange so as to form a joint between the valve body and the diaphragm. The pressure ring may include concentric fluctuations, and may be configured to apply a sealing force against the joint so that the concentric fluctuations prevent radial movement of the circumferential gasket portion and the circumferential flange. The elastomeric member may be configured to respond to a compressive force and provide a substantially constant sealing force, transmitted through the pressure ring, regardless of small variations in the thickness or material dimensions of the circumferential gasket portion caused by temperature fluctuation or material flow and age. | 01-23-2014 |
| 20160116072 | Choked Flow Valve With Clamped Seat Ring - A fluid valve includes a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway. A valve seat is disposed within the fluid passageway. A fluid control member is movably disposed within the fluid passageway, the fluid control member cooperating with a trim assembly to control fluid flow through the fluid passageway. The valve seat is clamped into the valve body and the fluid valve operates under choked flow at a pressure drop of 10% or less of the inlet fluid pressure. | 04-28-2016 |
| 251171000 | Packing presed by gland | 1 |
| 20140061521 | Segmented Valve Packing Gland - A packing gland for a valve wherein the packing gland includes a top portion for receiving a gate. The packing gland includes first and second longitudinal sections of packing material for sealing the gate. In addition, the packing gland includes first and second stuffer elements located adjacent the first and second longitudinal portions. The packing gland also includes a plurality of clamp elements located adjacent the first and second stuffer elements, wherein the clamp elements provide pressure on selected portions of the first and second stuffer elements to compress corresponding selected portions of the first and second longitudinal sections of packing material. | 03-06-2014 |
| 251172000 | Fluid pressure | 8 |
| 20100090146 | VALVE SEALING ARRANGEMENTS AND METHODS - A valve includes a valve body, a valve element to selectively control flow through the valve, and a seal member and seat member together providing a fluid-tight seal between a valve cavity and a fluid passage in the valve body. A live-loaded biasing member is adapted to apply a live-loaded sealing force to the seat member to bias the seat member toward sealing engagement with the valve element. When the pressure in the fluid passage exceeds the pressure in the valve cavity, an unbalanced passage pressure load biases the seat member toward sealing engagement with the valve element. When the pressure in the valve cavity exceeds the pressure in the fluid passage, an unbalanced cavity pressure load biases the seat member toward sealing engagement with the valve element. The live-loaded sealing force is in parallel with each of the unbalanced passage pressure load and the unbalanced cavity pressure load. | 04-15-2010 |
| 20100200791 | Valve Having High Pressure and Low Pressure Seals - A valve having high and low pressure seals. The valve has a housing in which is mounted a valve closing member having a sealing surface which faces an opening in the housing. A low pressure seal surrounds the opening and is biased into contact with the sealing surface. A high pressure seal also surrounds the opening. Pressure in the valve pushes the closing member against the low pressure seal, which moves toward the opening until the closing member contacts the high pressure seal. | 08-12-2010 |
| 20100276620 | DOUBLE PISTON TRUNNION MOUNTED BALL VALVES AND METHODS OF USE - Disclosed are a method and a ball valve structure which provide for an improved seal in a trunnion mounted, double piston ball valve, which is especially useful in applications requiring a seal against high pressures, such as in the oil, gas and chemical process industries. Higher pressures on an inlet side of the valve are used, while the valve moves toward and is maintained in a valve closed position, to create movement of a ball element of the valve so as to bias the ball element against both piston seat elements (or rings) used to create the seals. This movement of the ball element thereby effectively uses such upstream pressure to create and enhance a seal between the ball element and both piston seat elements while in the valve closed position. | 11-04-2010 |
| 20110303862 | Pressure Energized Spring Seal - A metallic seal for a 90° valve features a generally rectangular shape in section that defines a chamber open to internal pressure that can enlarge the chamber to enhance the sealing effect. Sealing occurs at discrete locations at portions of the seal that are preferably rounded in shape. Overlapping ends that define the entrance to the chamber also are positioned to minimize excessive deflection and resulting plastic deformation that could close off the entrance to the chamber. | 12-15-2011 |
| 20120205569 | DIFFERENTIAL PRESSURE SEALING DEVICE FOR BALL VALVES - A differential pressure sealing device for use with ball valves that utilizes the pressure of the fluid being communicated in a piping system to increase the sealing force created by the sealing device. Fluid being communicated through a ball valve is provided to a sealing device that includes some type of element for creating a bias force. The pressure of the fluid being communicated increases the sealing pressure created by the sealing device. In this manner, the bias force created in the sealing device benefits from the pressure of the fluid being communicated to enhance the sealing when used with a ball valve or similar component. | 08-16-2012 |
| 20130313457 | VALVE WITH ADAPTIVE FACIAL SEALING RING - A valve including a flow control assembly having an adaptive, floating closure member is provided. In one embodiment, a ball valve includes a floating closure member having a shoulder enclosed within a recess of the valve body. The recess is larger than the shoulder of the closure member and allows axial movement of the closure member with respect to the valve body and along a flow path through the valve. Additional valve systems, devices, and methods are also disclosed. | 11-28-2013 |
| 20160102769 | HIGH PRESSURE BALL VALVE AND SEAT - A ball valve for ultra-high pressure applications wherein the inner annular surface(s) of the valve seat(s) has an annular sealing face in sealing engagement with the flow control element, support surfaces adjacent the sealing face in contact with the flow control element, and vent grooves between adjacent support surfaces and between the sealing face and the support surfaces. A method to utilize the bidirectional ball valve involves rotating the valve stem and control element and maintaining a pressure of 275.8 MPa (40,000 psi) or more for at least 1 hour without leaking before opening or after closing the valve. | 04-14-2016 |
| 251173000 | Butterfly valve | 1 |
| 20090272926 | Butterfly valves - A butterfly valve for handling materials where the temperature of the materials flowing through the butterfly valve can exceed the breakdown temperature of the sealing member with the butterfly valve inhibiting contact of hot transportable materials with the sealing member to isolate the hot transportable materials from the sealing member. Cooling conduits maintain at least portions of the valve that contacts the sealing member at a temperature below the breakdown temperature of the sealing member to prevent seal failure. | 11-05-2009 |
| 251174000 | Spring | 4 |
| 20090095931 | Ball valve having self-centering seats - A trunnion type ball valve having valve seats that are laterally moveable within seat recesses of the valve and establish sealing engagement with a valve ball member that is trunnion supported for rotational movement between open and closed positions. The valve seat members are self-centering for optimum sealing engagement with the spherical sealing surface of the ball member. The internal geometry of the seat assemblies are designed to permit optimum flow through the valve mechanism even under circumstances where the seat members are located in laterally off-center relation with respect to the centerline of the flow passages due to self-centering seat movement. The ball valve is readily adapted for fire-safe application via the use of heat resistant seals and metal-to-metal sealing of components to prevent or minimize leakage in the event of seal destruction or degradation by excess heat. | 04-16-2009 |
| 20100163769 | FLOW CONTROL VALVE FOR FLUIDIZED MATERIAL - “A flow control valve for fluidized material comprises a valve housing having a valve chamber with a valve seat and a valve plug having a flow passage, the valve plug being arranged inside the valve chamber in front of the valve seat ( | 07-01-2010 |
| 20120217425 | BALL VALVE HAVING MULTIPLE MOVEABLE SEATS - Embodiments and methods are disclosed herein that relate to a valve assembly. The valve assembly includes a housing having a passage formed therethrough, and a valve ball having a through hole and disposed in the housing, in which the valve ball is rotatable between an open position that has the through hole aligned with the passage and a closed position that has the through hole misaligned with the passage. The valve assembly further includes a first seat having a first sealing surface and disposed in the housing adjacent to the valve ball, and a second seat having a second sealing surface and disposed in the housing adjacent to the first seat such that the first sealing surface of the first seat is disposed adjacent to the second sealing surface of the second seat. At least one of the first sealing surface of the first seat and the second sealing surface of the second seat comprises an arcuate surface. | 08-30-2012 |
| 20150300509 | Floating Ball Valve - The present invention discloses a floating ball valve, which includes a valve body, a ball, (2) valve seats on both inlet and outlet ends, and a valve stem. The valve body includes a valve body cavity therein, the ball and the valve seats are both assembled in the valve body cavity, and the valve stem and the ball are connected and assembled in the valve body, the valve seats are connected to the valve body through elastic elements; and when the floating ball valve is closed, the ball of the floating ball valve and the valve seats both move inside the valve body cavity. | 10-22-2015 |
| 251175000 | Fluid pressure | 2 |
| 20090134349 | Control Valve for a Camshaft Adjuster - A control valve for a hydraulic adjuster for the camshaft of an internal combustion engine is provided, wherein an actuator acts on a pressure part ( | 05-28-2009 |
| 20140021392 | TWO-STUD DIAPHRAGM FOR DIAPHRAGM VALVES - A diaphragm valve features a valve body having a fluid flow channel with a weir portion to control the flow of fluid through the fluid flow channel; a diaphragm that responds to a closing or force to make sealing contact with the weir portion to interrupt said flow, or to release the sealing contact with the weir portion to allow the flow; a compressor configured to apply the closing or force in order to interrupt or allow the flow; and two studs configured to: couple the compressor and the diaphragm together, attach to the diaphragm to provide attachment points on the diaphragm on each side of the weir portion, and respond to the closing or opening force so the attachment points on both sides of the weir portion cause the diaphragm to make sealing contact with the weir portion or cause the sealing contact to be released. | 01-23-2014 |
| 251176000 | Spring | 14 |
| 20090179168 | METHODS AND APPARATUS FOR ADJUSTING A SPRING LOAD IN AN ACTUATOR - Methods and apparatus for adjusting a spring load in an actuator are described. An example actuator includes a housing and a plate. Further, the example actuator includes one or more springs disposed in the housing to apply a force to the plate. Additionally, the example actuator includes a spring load adjuster having a collar extending through and movably engaged to the plate to enable an adjustment of the position of the collar relative to the plate to change a load provided by the one or more springs. | 07-16-2009 |
| 20150137016 | Gate Valve - A gate valve is provided, the gate valve including a housing with two seat rings and two slide valve plates arranged on a plate holder and located between the seat rings, An actuator is arranged to bring the valve plates into a closed position bearing against the seat rings to halt flow between an inlet and outlet of the housing. Each slide plate has a depression in which a respective pressure piece is received. The pressure pieces face one another with one pressure piece having a projection that fits in a bore of the other pressure piece. Within at least a portion of the bore a plurality of spring elements are co-axially located on the projection between the pressure pieces biasing the pressure pieces and their respective valve plates apart. Preferably, the plurality of spring elements are cup plate springs, with a first group having a spring force that is less than and a spring force of a second group of the cup plate springs, and a spring deflection that is greater than a plate spring deflection of the second group of cup spring plates. | 05-21-2015 |
| 251177000 | Pivoted valve | 2 |
| 20150014564 | VALVE - A valve, which is provided in an exhaust passage of an internal combustion engine to release exhaust, includes a valve seat having an opening opened to the exhaust passage, a valve body having a conical surface or a spherical surface configured to close the opening by coming into contact with the valve seat, a movement unit configured to move the valve body in a direction of intersecting the opening, and an urging unit configured to urge the valve body in the direction of intersecting the opening, and the urging unit controls urging force by the movement unit in a direction of suppressing vibration of the valve body caused by vibration of exhaust pulse frequency determined by a speed of the internal combustion engine and a number of cylinders of the internal combustion engine. | 01-15-2015 |
| 20150060712 | ROTARY SLIDE VALVE - The invention relates to a rotary slide valve comprising a housing, a valve slide, a valve seat having a sealing surface, against which the valve slide rests and in which a flow opening is provided, which has a curved outer contour at least in substantial parts, wherein the valve slide can be pivoted about an axis that is eccentric to the center of curvature of the outer contour on the side of the center of curvature that faces away from the flow opening, and a drive that can adjust the valve slide between a closed position and an open position. | 03-05-2015 |
| 251180000 | Rotary valve | 7 |
| 20110284784 | SEALS, BALL VALVE ASSEMBLIES, AND METHODS OF OPERATING BALL VALVE ASSEMBLIES - Seals, ball valve assemblies, and methods of operating ball valves assemblies are provided. The seal includes an annular jacket, a restrictor, and a spring energizer. The annular jacket includes a first annular pocket and a second annular pocket. The restrictor is disposed in the first annular pocket and is capable of restricting shrinkage of the first annular pocket to a predetermined diameter range, if the seal is exposed to a temperature within a predetermined temperature range. The spring energizer is disposed in the second annular pocket and is configured to supply a force against the annular jacket to maintain the seal against a contact surface. | 11-24-2011 |
| 20150102246 | Interlocking Spring Seat Assembly and Rotary Control Valve Comprising Same - A spring seat assembly for a fluid valve includes a first spring seat having a first protruding member extending away from a first seating surface and a second spring seat having a second protruding member extending away from a second seating surface, the first spring seat being slidable relative to the second spring seat. A spring is disposed between the first seating surface and the second seating surface. A locking element is disposed on at least one of the first protruding member and the second protruding member. | 04-16-2015 |
| 20150377366 | Ball Valve and Method of Operating the Same - A ball valve comprises a selectively movable valve seat on its ball plug that is pressure actuated. The ball valve also comprises a moveable upstream valve seat that can selectively be seated by pressure actuation. The upstream valve seat thereafter will remain seated until the pressures upstream and downstream of the upstream valve are equalized. | 12-31-2015 |
| 20160186870 | DOUBLE PISTON EFFECT LIP SEAL SEATING ASSEMBLIES - A valve including a double piston effect seat assembly with unidirectional lip seals is provided. In one embodiment, a valve includes a ball disposed in a cavity of a hollow valve body. The ball includes a flow port and is rotatable to control flow through the valve. The valve also includes a seat assembly having a seat in contact with the ball, a ring positioned on an opposite side of the seat from the ball, and unidirectional lip seals. The seat assembly is a double piston seat assembly, with the double piston effect provided by the arrangement of the seat, the ring, and the unidirectional lip seals. Additional valve systems, devices, and methods are also disclosed. | 06-30-2016 |
| 251181000 | Plug | 2 |
| 20140001388 | VALVE ASSEMBLY AND COMPONENTS THERFORE | 01-02-2014 |
| 20140239212 | Seal Arrangement For Valve - A valve seat arrangement ( | 08-28-2014 |
| 251185000 | Spring in fluid | 1 |
| 20140319395 | SEAL CARRIERS FOR BALL VALVES, BALL VALVE ASSEMBLIES INCLUDING SUCH SEAL CARRIERS, AND RELATED METHODS - A seal carrier for a ball valve includes a carrier body to be located between a ball and a portion of a valve body. The carrier body may have an annular channel for carrying a ring seal in a side to be located proximate the ball. A spring is located at a peripheral portion of the carrier body. An end portion of the spring is configured to abut against the portion of the valve body, and the spring is configured to provide a compressive force between the portion of the valve body and the ball in a direction parallel with the direction of fluid flow through the ball valve assembly. A ball valve assembly may include such seal carriers. Methods of forming such seal carriers are also included. | 10-30-2014 |
| 251186000 | Piston | 3 |
| 20090179169 | SEAL ASSEMBLY FOR USE WITH VALVES HAVING A TWO-PIECE CAGE - A seal assembly for use with valves having a two-piece cage is described. An example seal assembly includes a body defining a bore extending along an axis to slidably receive a closure member. The body includes a first portion removably coupled to a second portion. The first portion includes a first groove and the second portion includes a second groove. The first and second grooves form a sealing surface when the first portion couples to the second portion. The example seal assembly further includes at least one sealing member disposed adjacent the sealing surface to provide a seal against the closure member and a biasing element to bias the sealing member toward the sealing surface. | 07-16-2009 |
| 20120292546 | MULTI-POSITION VALVE ASSEMBLIES - A multi-position valve assembly includes a valve body member at least partially defining a body chamber and a body orifice providing an inlet for ingress of a product into the body chamber. A stem member includes a plug portion at least partially located in the body chamber and a stem portion extending vertically from the plug portion beyond a top of the body chamber. The stem member includes a stem outlet capable of communication with the body chamber via a stem orifice. A first biasing member biases the stem member toward a closed position. A second biasing member biases the stem member toward the closed position only after the stem member is moved a clearance gap to a first open position. | 11-22-2012 |
| 20140166916 | ELECTROMAGNETIC PRESSURE-REGULATING VALVE FOR CONTROLLING PRESSURE-CONTROLLED COMPONENTS IN MOTOR VEHICLES - An electromagnetic pressure-regulating valve includes a housing comprising a first, a second and a third port, a valve seat, a valve closure member, an electromagnetic drive, and a biasing device. The electromagnetic drive comprises a coil wound on a coil carrier, an armature, a core, and an electromagnetic return-path device. The armature moves between a first and second end position and acts on the valve closure member. The biasing device is configured so that, when a current does not flow, the armature, and thereby the valve closure member, is positioned in a fail-safe setting on the valve seat so that a connection from the third port to each of the first and second ports is closed. The valve seat is connected via a fluid channel to the first and second ports. The armature is steplessly adjustable between the first and second end positions in every setting. | 06-19-2014 |
| 251187000 | Separate actuators or actuator motion | 5 |
| 20080265197 | GATE VALVE FOR A SYSTEM FOR CIRCULATING COOLING AIR THROUGH A TURBOMACHINE - Gate valve ( | 10-30-2008 |
| 20110155937 | APPARARTUS TO INCREASE A FORCE OF AN ACTUATOR HAVING AN OVERRIDE APPARATUS - Apparatus to increase a force of an actuator having an override apparatus are described herein. An example fluid control system includes a first fluid control apparatus to fluidly couple a control fluid supply source to a control actuator via a first passageway. The control fluid supply source provides a control fluid to move a control actuator member of the control actuator in a first direction or a second direction opposite the first direction when the control actuator is in the operational state. A second fluid control apparatus is in fluid communication with the first fluid control apparatus and is configured to fluidly couple an override actuator to the control actuator via a second passageway when the control actuator is in a non-operational state. The override actuator is operatively coupled to the control actuator. | 06-30-2011 |
| 251188000 | Rotary valve | 3 |
| 20130341545 | VALVE AND VALVE CARTRIDGE ASSEMBLY THEREOF - A valve cartridge assembly comprises a valve cartridge ( | 12-26-2013 |
| 20140252254 | VALVE CORE ASSEMBLY AND VALVE ADOPTING THE VALVE CORE ASSEMBLY - A valve core assembly and a valve adopting the valve core assembly. The valve core assembly comprises a valve core ( | 09-11-2014 |
| 20150076381 | SYSTEM AND METHOD FOR CONTROLLING A COMPRESSOR INLET VALVE - An air compressor system includes a housing defining an inlet and an outlet, a butterfly valve coupled to the inlet and movable between a closed position and an open position, and an actuator coupled to the butterfly valve and operable to apply an actuator force to the butterfly valve to move the actuator and the butterfly valve to a desired position between the closed position and the open position. A feedback actuator is coupled to the actuator and is operable to apply a variable secondary force to the butterfly valve in opposition to the actuator force, the secondary force varying in response to the position of the butterfly valve. | 03-19-2015 |
| 251190000 | Piston | 1 |
| 20090072175 | PRESSURE REDUCING VALVE - A pressure reducing valve is disclosed to include a housing connected to a compression gas source and covered with an end cap, a piston mounted in the housing and defining with the end cap an air chamber, a cylindrical elastic plastic member stopped between the piston and an inside part of the housing, and a valve flap held down by a return spring to close the air chamber. | 03-19-2009 |
| 251192000 | Rotary valve | 2 |
| 20110233435 | MEDICAL CONNECTOR - A medical connector of improved configuration. Annular grooves are formed in both inner and outer surfaces of an outer peripheral portion of an elastic valve element to form an annular constricted section. An outer peripheral side from the constricted section is made to serve as an annular fixation section. A valve receiving seat is formed at an inner peripheral edge of an aperture portion in a housing, and an annular ring is fixed to the aperture portion to sandwich and support the annular fixation section between the valve receiving seat and the annular ring. Engaging projections formed on mutually facing surfaces of the valve receiving seat and the annular ring are engaged with the annular grooves, and either the engaging projection and/or the engaging projection is divided in a circumferential direction to have a plurality of projection-divisions. | 09-29-2011 |
| 20140084198 | Ball Valve - Provided is a ball valve which may be manually opened and closed with ease by reducing handle torque and can securely prevent leakage. The present invention relates to a ball valve, comprising a valve body which has a fluid inlet passage, fluid outlet passage, and a communicating part provided between these passages, a ball which has a fluid communication passage and preferably is arranged on the communicating part of the valve body to be able to rotate about a reference axis, a substantially cylindrical ball seat which preferably has a desired opening part on its peripheral wall and is arranged between said ball and said valve body, a ball seat pressing part arranged inside said valve body so as to be adjacent to said ball seat, and a presser screw arranged to be screwed to fit in the inner periphery of said valve body. The ball valve preferably performs communication and interception between the fluid inlet passage and the fluid outlet passage by the rotation of the ball about the reference axis. The presser screw preferably presses the ball seat pressing part by adjustment of its tightening force and presses the ball seat pressing part without contacting the packing. | 03-27-2014 |
| 251193000 | Gate valve | 14 |
| 20090090883 | CHAMBER ISOLATION VALVE RF GROUNDING - Embodiments described herein provide a method and apparatus for grounding a chamber isolation valve. In one embodiment, a grounded chamber isolation valve for a plasma processing system is described. The chamber isolation valve includes a door and a bracing member movably attached to and opposing the door, and at least one electrically conductive member in electrical communication with the door, the at least one electrically conductive member comprising one or more reaction bumpers disposed on the bracing member that are adapted to contact at least one grounded component of the plasma processing system when the door is in the closed position. | 04-09-2009 |
| 20090127487 | Slide Valve - A slide valve is provided, in which the conductance in the minimum region is controllable with high accuracy to enable stable control, a slide plate is prevented from plastic deformation to acquire good controllability of the minimum flow rate, and it is made possible to detach a valve element and an air drive portion integrally with the slide plate, thereby facilitating the maintenance. The slide valve | 05-21-2009 |
| 20100327203 | VACUUM GATE VALVE AND A METHOD OF OPENING AND CLOSING GATE USING THE SAME - To reduce invasion and adhesion of foreign matters into and onto the gating-member retreat room in the transition from the gate-open state to the gate-close state including retreat and on-shutting-movement of the gating-member. The shutter, being moved in the shuttering movement room, shuts the entrance aperture by making the shutter sealing contact with the stationary seal by such movement of the shutter itself when the gating-member is accommodated in the gating-member retreat room, and, also being moved in the shuttering movement room, shuts the entrance aperture by making the shutter sealing contact with the second gate seal by such movement of the shutter itself when the gating-member, being moved in the shuttering movement room, shuts the exhaust port by making the first gate seal contact with the stationary seal by such movement of the gating-member itself. | 12-30-2010 |
| 20130168586 | VALVE SEAT RETENTION PIN - Embodiments described herein relate to a retention pin for retaining a seat member in the body pocket of a gate valve. Two retention pins may be installed on the outer circumference of the seat member. The seat member is inserted into the body pocket and rotated so that the retention pins are positioned in grooves in the body pocket and the seat member is retained in the body pocket. | 07-04-2013 |
| 20130306896 | Gate Valve In Which Amount Of Squeeze Of Sealing Material Is Controllable | 11-21-2013 |
| 20130313458 | VACUUM CONTROL VALVE AND VACUUM CONTROL APPARATUS - A vacuum control valve connected between a vacuum chamber and a vacuum pump includes a control valve main body having a valve seat formed in a vacuum flow passage, a valve body that manipulates the valve opening by performing a linear motion to adjust a lift, a rod that transmits driving force from a linear driving unit that generates the driving force, a sliding/sealing member that seals the vacuum flow passage while allowing the rod to slide, and a cylindrical member that covers a sliding range of the rod. The sliding range includes a range movable from a valve body flow passage side to an exterior side. The cylindrical member has an outer peripheral surface, a working fluid absorption amount per unit area of the outer peripheral surface being smaller than that of an outer surface of the rod. | 11-28-2013 |
| 20140061522 | Valve Actuator with Degressive Characteristic Spring - An actuator for a gate valve having a gate has a stem coupled to a gate. A spring is coupled to the stem and has an extended length position while the gate is in a closed position and a contracted length position while the gate is in an open position. The spring has a degressive characteristic such that a graph of a force required to move the gate from the closed position to the open position versus a deflection of the spring is a nonlinear curve with a positive slope that decreases when moving from the closed to the open position. The spring may be an array of wavy springs arranged in nested and in valley-to-crest combinations. | 03-06-2014 |
| 251195000 | Bifaced | 6 |
| 20080251749 | Ethylene Production Isolation Valve Systems - The present invention provides more efficient, cost effective ethylene productions isolation valve devices and system as well as more efficient, cost effective methods for isolating the flow of matter from one location to another in an ethylene productions operation where the valve comprises a first seat; a second seat aligned with said first seat; a blind; a main body having an orifice dimensioned to align with an orifice in said line; wherein said main body is coupled to said line; an upper and lower bonnet coupled to said main body, wherein said bonnets may be removed in order to replace valve parts without separating the main body from the line; and a plate located inside a bonnet, wherein the plate comprises a planar surface that contacts a surface of the blind. | 10-16-2008 |
| 20100219362 | VACUUM VALVE - For a vacuum valve including a wall ( | 09-02-2010 |
| 20130277590 | VALVE | 10-24-2013 |
| 20150034851 | SPLIT GATE VALVE WITH BIASING MECHANISM - A system includes a split gate valve with first and second gate sections coupled together and configured to move together within a cavity of the split gate valve between an open position and a closed position. The split gate valve includes a rolling actuator to reduce friction and to convert a rotational input into a linear motion to move the first and second gate sections between the open and closed positions. The split gate valve also includes at least one expansion bar configured to bias the first and second gate sections from one another to seal against opposite seats of the split gate valve, wherein each expansion bar includes a spring mechanism configured to compress upon moving the first and second gate sections into and beyond the closed position to prevent buckling of the expansion bar. | 02-05-2015 |
| 251197000 | Faces pressed by subsequently movable expander | 2 |
| 20120313023 | Gate Valve - Disclosed is an expanding gate valve that expands the gate assembly by engagement of symmetrical opposing inclined cam surfaces with corresponding symmetrical opposing wedges, where at least one of the wedges is driven by the stem that moves the gate assembly, and where the gate assembly is urged back toward the retracted position by at least one lateral-force-inducing member at least when the gate assembly is not in the closed position. Example compact and full body gate valve designs are disclosed. Lateral-force-inducing members may comprise one or more springs, such as a snap-ring, or may comprise cam followers running against surfaces defining the gate members' movement profile. A sealed sleeve is also disclosed that seals the interior of the valve body from pressure in the pipeline when the valve is open, while allowing the gate assembly to expand and retract laterally. | 12-13-2012 |
| 20140252255 | Expanding Gate Valve Assembly - An expanding gate valve assembly includes a segment and a gate Inner faces of the segment and gate are configured for slidable contact and angled faces of the segment and gate are configured for slidable contact to form a first gate assembly interface. The first gate assembly interface can further include a tab on the gate configured to contact a base surface of the segment to form a second gate assembly interface. A spring can be coupled between the gate and the segment to maintain at least the first gate assembly interface. The tab can be disposed below the segment to provide a lifting engagement with the base surface of the segment. The first gate assembly interface can be ledge-free. | 09-11-2014 |
| 251203000 | Cam or wedge | 1 |
| 20130256575 | GATE VALVE FOR BLOCKING A PIPE - A gate valve for blocking a pipe, wherein the gave valve comprises a valve body and a wedge, which is insertable into a wedge receptacle disposed in the valve body, wherein the wedge has a wedge plate on at least one side in the passage direction of the pipe, which is disposed on the wedge with a clearance in the direction of the center longitudinal axis of the pipe, wherein the wedge plate is adapted to be pressed by at least one elastic element against the wedge receptacle in the valve body, wherein the at least one elastic element is configured as an approximately circular-shaped circumferential bellows having a central opening. | 10-03-2013 |
