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| Number | Title | Issue Date |
| 7357372 | Seat ring for butterfly valve A seat ring having a hollow cylindrical body portion with a flange surface as each of its side surfaces. The cylindrical body portion has stem through-holes above and below along a stem axial direction X and a stem penetrates said through-holes. An outer circumferen... | 04/15/2008 |
| 7350536 | Vacuumized receptacle for sample collection A portable receptacle is vacuumized for use in taking an air or gas sample for subsequent examination to determine type, origin, components of the air or gas. Critical to a long shelf life of the vacuumized receptacle is a valve which virtually seals the receptacle ... | 04/01/2008 |
| 7347408 | High differential pressure, low torque precision temperature control valve A high differential pressure, low torque precision temperature control valve is disclosed herein. This valve is trunnionated with stem components that are separable from the plug for ease of maintenance and manufacturability and thus reducing the need to remove the ... | 03/25/2008 |
| 7337797 | Ball valve and method of manufacture A ball valve having a ball valve assembly disposed within a unitary, elongated tube is provided. The unitary, elongated tube has a first, inlet end, a medial portion having a cross-sectional area, and a second, outlet end. The first, inlet end is a swedged tube havi... | 03/04/2008 |
| 7261276 | Flow regulator valve An apparatus such as a multiple orifice valve (MOV) for controlling a flow of pressurized fluid. A housing directs the flow from an inlet to an outlet and supports an interior stationary surface. A moveable surface selectively impedes the flow and is disposed in fac... | 08/28/2007 |
| 7210668 | Valve assembly having a pressure balanced segment seal A plug valve assembly includes a plug and a segment seal assembly. The segment seal assembly is configured to reduce the differential pressure load across the segment seal assembly when the valve is closed. The segment seal includes an opening in fluid communication... | 05/01/2007 |
| 7166912 | Isolated thermal interface An isolated thermal interface is presented. The inventive interface includes a flexible graphite sheet having two major surfaces, at least one of the major surfaces coated with a protective coating sufficient to inhibit flaking of the particles of graphite. ... | 01/23/2007 |
| 7093819 | Ball valve with shear bushing and integral bracket for stem blowout protection A valve 100 comprising a one piece valve body 112 having an axial fluid bore 124 and a rotatable fluid control element 110. The body 112 includes an integral bracket 128 which provides an open access area between the bracket... | 08/22/2006 |
| 7080820 | Elliptical sealing surface for butterfly valve A reduced component wear valve is comprised of a valve body having a passage therethrough and a disc attached to a rotatable shaft. The disc is utilized with a seal forming a gap between the disc and the seal proximate to the rotational axis of the disc. When the di... | 07/25/2006 |
| 7048004 | Valve system The invention relates to a valve system (1) with at least one valve body (2) and a longitudinal slide (3) slidably dispsoed therein which establishes or disrupts a connection between a feed line (4) and at least one inlet (5, 6) or... | 05/23/2006 |
| 7044148 | Apparatus and method for selectively securing a valve in an open or closed position The present invention generally relates to a locking apparatus adapted to interface with a valve and to selectively secure the valve in an open or closed position. More specifically, a valve handle lock is provided which is tamper resistant and is generally capable ... | 05/16/2006 |
| 7004452 | Valve seal assemblies and methods A method of sealing a valve engaging member to a valve body about a borehole and structure thereof. Two seal members disposed on either side of the valve engaging member include a seat member adjacent the valve engaging member and a pocket insert adjacent the seat m... | 02/28/2006 |
| 6997436 | Vehicle actuator with valve seat cushioned by o-ring A valve for a control system of a vehicle includes a plunger slidably supported in a valve housing. Within the housing is a valve seat member that defines a valve seat configured for engaging the plunger in a closed configuration. The edges of the valve seat member ... | 02/14/2006 |
| 6988708 | Low torque ball valve seat A ball has a valve body defining an inner cavity and a fluid inlet and fluid outlet, a control ball element rotatably mounted in the inner cavity, and having a segment defining a ball face, and a flexible valve seat positioned in the valve body. The seat comprises a... | 01/24/2006 |
| 6932104 | Field configurable shut-off valve A kit of parts for configuring and assembling a shut-off valve in the field has a valve body, a plurality of connection fittings, and a plurality of gaskets. The connection fittings each have a first end with a common configuration adapted to fit into any of three p... | 08/23/2005 |
| 6533241 | Retaining piece of a ball valve A retaining piece of a ball valve is provided with an engaging surface and a groove defined to provide resilience to the engaging surface which engages with an outer surface of a ball. With such an arrangement, the engagement between the outer surface of ... | 03/18/2003 |
| 6279875 | Gate valve with improved telescoping seat assembly A gate valve is disclosed having a telescopingly interfitted seat assembly that fits into a recess in a gate chamber between the gate valve body and the gate. A sealing cavity is formed between two seat elements that form the telescopic connection. A pref... | 08/28/2001 |
| 6217003 | Valve assembly having floating retainer rings A valve assembly including a valve housing having a fluid passageway extending through it. The fluid passageway has an inlet portion having a cross-section defined by a substantially annular inlet surface, an outlet portion having a cross-section defined ... | 04/17/2001 |
| 6217002 | Valve assembly having floating retainer rings A valve assembly including a valve housing having a fluid passageway extending through it. The fluid passageway has an inlet portion having a cross-section defined by a substantially annular inlet surface, an outlet portion having a cross-section defined ... | 04/17/2001 |
| 6029948 | Valve assembly having floating retainer rings A valve assembly including a valve housing having a fluid passageway extending through it. The fluid passageway has an inlet portion having a cross-section defined by a substantially annular inlet surface, an outlet portion having a cross-section defined ... | 02/29/2000 |
| 5676347 | Valve with adjustably pressurized sealing gaskets A valve mechanism for installation in a pipe line for controlling the movement of a flowable material therein that comprises a central body section with end sections connected thereto and forming therewith a valve stopper chamber, the end sections each ha... | 10/14/1997 |
| 5540414 | Actuator and zone valve A valve body including a first body member and a second body member adjacent the first body member, with the first and second body members defining a through-passage. A ball valve element having a bore therethrough is disposed within the valve body. A bal... | 07/30/1996 |
| 5535986 | Torsionallly loaded fluid seals for rotary valves A fluid seal for rotary valves wherein a metal seal ring is adapted to fit within a groove formed within the valve body and a retainer ring for sealing engagement with the sealing surface of a closure member. The metal seal ring has a non-symmetrical cros... | 07/16/1996 |
| 5478047 | Flexible seating structure for valves A rotary valve has a valve housing with a wall defining a flow passageway, a closure member journalled within the valve housing and mounted for movement between a first position for permitting flow of fluid within the flow passageway and a second position... | 12/26/1995 |
| 5388806 | Valve assembly having improved valve seat A valve comprising a valve body having a first end, a second end, and a through opening forming a fluid flow passage and a wall surrounding a portion of the fluid flow passage, the fluid flow passage defining an axis that is co-axial with the wall. A valv... | 02/14/1995 |
| 5288054 | Globe valve and method for making same A valve is presented comprising a valve body defining a chamber, a valve stem extending into said chamber, a disk attached to the valve stem, a discrete annular seat movably disposed in the chamber, a resilient ring disposed in the chamber adjacent the an... | 02/22/1994 |
| 5205536 | Top entry, trunnion-type ball valve A top entry, trunnion-type ball valve has identical, but oppositely arranged sealing assemblies on both sides of the ball. These sealing assemblies include a seal carriage that holds and maintains in position an annular body seal, an annular ball seal and... | 04/27/1993 |
| 5154397 | Peripheral knife gate seal A trapezoidal shaped peripheral seal is inserted in a trapezoidal cast peripheral groove in the valve body. A relief cut-out is disposed beneath the peripheral groove. The sealing function is effected by loading the peripheral seal with the gate so as to ... | 10/13/1992 |
| 5148946 | Method and apparatus for delivering predetermined amounts of fluids A method for delivering a predetermined amount of a fluid comprises the steps of pressurizing the fluid, passing it through a pressure feed passageway, opening and closing the pressure feed passageway, and thereby delivering a predetermined amount of the ... | 09/22/1992 |
| 4968000 | Valve A valve with a valve body (11, 43) in the form of a ball or of a segment of a ball has a second, concave, spherical sealing surface (20, 53) which is provided to be resiliently urged against a first sealing surface of the valve body, and at least an outer... | 11/06/1990 |
| 4915352 | Sealing arrangement having an annular elastically deformable seal and employment of such sealing arrangement The sealing arrangement comprises a seal having end sealing surfaces. The one end sealing surface bears against an annular sealing surface of a valve seat screwed into a lower part of a water faucet. The other end sealing surface presses upon a non-rotata... | 04/10/1990 |
| 4867197 | High pressure valve An arrangement for providing access to the seal rings of a seatless high pressure valve includes an aperture in the valve body and a demountable sealed closure for the aperture. The sleeve within the valve body for transmitting the gland force to the seal... | 09/19/1989 |
| 4834338 | High pressure flexible seat valve trim A fluid valve with improved valve trim for reliable fluid shut off in high pressure applications. The improved valve trim includes a flexible metal seat with a lip portion which flexes outwardly upon sealing contact with a valve plug seating surface. A de... | 05/30/1989 |
| 4815704 | Ball valve The ball valve according to my invention comprises a pressure-tight housing ith at least one inlet-side and at least one outlet-side connecting pipe element, a valve ball made of sintered ceramic material, a valve seat and an operating shaft connected to t... | 03/28/1989 |
| 4796858 | Dual seal valve A dual seal valve having a bubble-tight primary seal and a metal-to-metal secondary seal for sealing engagement with a rotating valve element. The primary seal is preferably a composite seal comprising a relatively hard, high lubricity element bonded to a... | 01/10/1989 |
| 4795133 | Ball valve with a ceramic valve ball and ceramic seat rings The ball valve, especially for a solvent-containing flow and/or an abrasive solid mixture, has a housing, a sintered ceramic valve seat, a sintered ceramic valve ball and an operating shaft for the valve ball guided through a shaft seal in the housing. Th... | 01/03/1989 |
| 4762301 | Compact multi-service ball valve A ball valve having a two component body with a bonnet section formed integrally with one of the body components. A first body member defines a first flow passage and a first end of a valve chamber. The second body member forms a second flow passage and a... | 08/09/1988 |
| 4724863 | Flue gas seal A damper mechanism of the slide gate type includes two curved seal segments positioned in back-to-back abutting relation to function as the primary flue seal. A seal door when closed extends between the upper ends of the seal segments and applies compress... | 02/16/1988 |
| 4685488 | Ball valve A ball valve comprising a housing having a cylindrical bore extending inwardly from the exterior and defining a valve chamber with inlet and outlet passages connected from the exterior of the housing to the chamber. A ball valve member is positioned axial... | 08/11/1987 |
| 4684105 | Ball valve A ball valve having means for releasably holding the sealing surfaces of a seal carrier in contact with the valve body and ball. The holding means includes a durable locking strip which is inserted through an opening in the valve body into an annular chan... | 08/04/1987 |
