| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 251157000 | WITH MEANS TO INCREASE HEAD AND SEAT CONTACT PRESSURE | 38 |
| 20090159826 | VALVE - The present invention relates broadly to a valve ( | 06-25-2009 |
| 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 |
| 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 |
| 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 |
| 20110095218 | CLOSING UNIT FOR A VACUUM VALVE - A closing unit for a vacuum valve includes a first valve plate ( | 04-28-2011 |
| 251158000 | With positive reduction | 4 |
| 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 |
| 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 | 1 |
| 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 | 13 |
| 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 |
| 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 |
| 251172000 | Fluid pressure | 6 |
| 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 |
| 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 |
| 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 | 3 |
| 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 |
| 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 |
| 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 |
| 251175000 | Fluid pressure | 1 |
| 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 |
| 251176000 | Spring | 4 |
| 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 |
| 251180000 | Rotary valve | 1 |
| 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 |
| 251186000 | Piston | 2 |
| 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 |
| 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 |
| 251187000 | Separate actuators or actuator motion | 2 |
| 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 |
| 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 | 1 |
| 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 |
| 251193000 | Gate valve | 6 |
| 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 |
| 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 |
| 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 |
| 251195000 | Bifaced | 3 |
| 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 |
| 251197000 | Faces pressed by subsequently movable expander | 1 |
| 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 |
