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| Number | Title | Issue Date |
| 7398955 | Gripping valve seat The valve seat of the present invention is configured for attachment to the valve housing after the valve housing has been coated with a protective coating. The valve seat is configured to grip the valve housing, thereby providing a secure attachment. In its simples... | 07/15/2008 |
| 7331359 | Valve with bi-loading seal A fluid control valve has at its lower inlet end a bi-loading seal. The seal is generally ring shaped in top view. However, it has a first flexible load section for sealing the stationary disk with respect to the housing and a second load section having an annular i... | 02/19/2008 |
| 7325783 | Valve seat edge relief profile A valve seat has an outer surface, a rearward end, a face and a forward end. A passage extends from the rearward end to the face. A valve element slidingly contacts the face. Stress relief flanges are located on the face in areas of high bearing stress. Each flange ... | 02/05/2008 |
| 7308902 | Subsea valve assembly with replaceable fixed orifice insert The present invention is directed to an subsea valve assembly having a fixed orifice insert that can be removed and replaced using a remotely operated vehicle (ROV). The valve assembly includes a removable orifice insert holder and a threaded receptacle housing into... | 12/18/2007 |
| 7275732 | Solenoid-operated valve for fuel cells A valve housing has a bottomed hollow cylindrical main body and a boss projecting from and smaller in diameter than the main body. The main body has a tapered surface circumferentially along a joint where a side wall and a bottom wall of the main body are joined to ... | 10/02/2007 |
| 7198250 | Piezoelectric actuator and pump using same Thin chamber diaphragm-operated fluid handling devices, including thin chamber pumps and thin chamber valves, facilitate device compactness and, in some configurations, self-priming. Diaphragm actuators of the thin chamber devices either comprise or are driven by pi... | 04/03/2007 |
| 7134450 | Interior structure of water control valve for faucets An interior structure of a water control valve for faucets includes a control valve body, a control valve stem, and a valve plug wherein the control valve body has an upper coupling end with a valve stem hole defined therein disposed at the upper step thereof, a pai... | 11/14/2006 |
| 7124776 | Water faucet having different output effects A water faucet includes a valve body, two conducting members, a valve seat, two control valves, two control handles, and two control plates. Thus, the water faucet is available for an upright water outlet pipe and a horizontal water outlet pipe, so that the water fa... | 10/24/2006 |
| 7077384 | Integrated post-guided seat ring assembly A control valve having a seat ring assembly constructed from a unitary piece of material is disclosed. The seat ring assembly may include a base which serves as a valve seat for the valve plug of the valve, and which includes a plurality of exterior threads adapted ... | 07/18/2006 |
| 7013877 | Pressure control valve, especially for high pressure diesel pumps of injection devices of motor vehicles A pressure control valve for a high-pressure diesel pump of an injection device of a motor vehicle has a valve body and a piezo drive with a tappet securing the valve body in a closed position. The valve body in the closed position closes off a bore, containing a me... | 03/21/2006 |
| 6991236 | Device for securing a sealing member in a predetermined position A device for securing a sealing member in a predetermined position. The device comprises a positioning element of a predetermined size and shape having a first surface and a second surface, and a retaining element of a predetermined size and shape disposed on at lea... | 01/31/2006 |
| 6953183 | Proportional solenoid valve In a proportional solenoid valve, a solenoid main body includes a coil, a valve seat member having a seat portion, a valve element that is displaced in accordance with a current applied to the coil so as to be brought into and out of contact with the seat portion, a... | 10/11/2005 |
| 6799702 | Device for dispensing viscous liquids A liquid dispensing device including a body generally having an air passage and a liquid passage. A valve seat is connected to the body and a valve stem is mounted for movement within the body with respect to the valve seat. A piston is caused to move by pressurized... | 10/05/2004 |
| 6796545 | Poppet valve seal mechanism A poppet valve seal mechanism has a groove to which a seal member is mounted such that a width of an opening of the groove is smaller than a maximum width inside of the groove and a cross section area of the groove is smaller than that of the seal member. A maximum ... | 09/28/2004 |
| 6772993 | Plug and seal assembly Disclosed is a plug and seal assembly comprising an annular seat ring and a plug head for use in a fluid control valve utilized for regulating a flow of high-pressure fluid. The seat ring includes first, second, and third sealing discs alternately stacked with respe... | 08/10/2004 |
| 6752377 | Pressure relief valve with selectable orifice size Method and apparatus for configuring a pressure relief valve to have a desired internal orifice size. A population of nominally identical inserts are provided having different internal orifice diameters. A resilient seal ring is placed upon a selected insert and bot... | 06/22/2004 |
| 6736162 | Pressure relief valve with improved repairability A repairable pressure relief valve having a valve body that forms an internal fluted surface provides improved field repairability. The internal, fluted surface is adapted to mate with a removal tool. A valve assembly is slidably mounted in the valve housing and sli... | 05/18/2004 |
| 6708952 | Valve seat A method and apparatus for attaching a valve to another device such as a device, such as a device for separating a solid from a liquid. A valve seat according to the present invention is friction fitted into an orifice defined by the device and a conduit is attached... | 03/23/2004 |
| 6691982 | Valve body The invention relates to a valve, comprising a valve body for controlling a medium flowing through the valve, a valve housing (3), in which the valve body (1), which has at least one gasket (4) for sealing cooperation with the valve housing (3) or where a... | 02/17/2004 |
| 6668853 | Pressure relief valve with field-replaceable high corrosion-resistant components A pressure relief valve has a gasketed main body fastened to a vessel wall adjacent to a vent port, the body having a recess surrounding the port which receives a plastic insert removably coupled to the body by a retaining ring fastened to the main body. ... | 12/30/2003 |
| 6641112 | Seat support and threaded seat for valve with quadruple seat Threaded seat support for valve with quadruple seal, such as aspiration and exhaust check valves used in reciprocating hydraulic pumps, wherein the threaded seat support cap is comprised by a planar frustoconical metal body, inside which a thread has been... | 11/04/2003 |
| 6361051 | Face seal for barrel type water valve A cylindrically curved rectangular face seal is provided for a cross-ported barrel type rotary valve member. The seal has a central flow orifice therethrough with an annular raised rib formed about the orifice and extending in a radial direction from the ... | 03/26/2002 |
| 6189862 | Replaceable valve seat A valve having a housing and a valve member located in the housing for controlling the flow of a fluid or fluid pressure directed through the housing. The valve further includes a removable valve seat located in the housing and against which the valve mem... | 02/20/2001 |
| 6176265 | Valve unit having an insert molded inner valve block Pick-up tools and other devices for handling semiconductor wafers are require to be capable of withstanding corrosive chemical substances and extreme temperatures, and the valve unit for use in such devices must meet these requirements. The valve unit is ... | 01/23/2001 |
| 6164624 | Expansion valve and refrigerating system An expansion valve comprises an orifice formed in a valve body and a valve member fixed to a movable member. Movement of a diaphragm is transmitted to an actuating rod via a member and the actuating rod actuated the movable member to control the opening a... | 12/26/2000 |
| 6109295 | High reliability and efficiency valve with large flow capacity This invention relates to an improved valve which achieves high reliability through a simplicity of design, a minimum number of parts, a unique valve seat with a two stage sealing action, and at the same time provides a large flow when in the open positio... | 08/29/2000 |
| 6024121 | Check valve A check valve having a valve housing with a pair of opposite end faces including an upstream end face and a downstream end face. The valve housing has a fluid passage extending axially therethrough between the upstream end face and the downstream end face... | 02/15/2000 |
| 5960823 | Tank vacuum limiter assembly A vacuum limiter valve assembly has a valve body screwed into an opening on a cargo tank. It has a relatively soft elastomeric, lightly spring-loaded seal closing the passageway through the valve body between the tank interior and the surrounding environm... | 10/05/1999 |
| 5947152 | Check valve and backflow preventer A check valve or backflow preventer has a valve mechanism mounted to a valve cover for removal and replacement as a unit. The valve clapper is resiliently supported to accommodate variations in tolerance. The valve seat is removably secured within the val... | 09/07/1999 |
| 5941266 | Angle entry rotary valve Straight line flow rotary valves with the valve member flow passage (21) turned away from the pipeline flow axis (22), to dispose the valve internals to an access port (50) located downstream on the same flow axis of the valve member (11). Another embodim... | 08/24/1999 |
| 5871156 | Sprinkler with removable valve seat An irrigation sprinkler of the type having an inlet control valve is provided with a removable valve seat formed integrally with an inlet filter screen. The valve seat is positioned to engage a valve head to normally prevent water inflow to a sprinkler ca... | 02/16/1999 |
| 5749394 | Check valve including molded valve seat A ball check valve including a housing and a ball element movably positioned in the housing. An insert member is located at an inlet port of the housing, and an elastomeric element is molded directly onto the insert member and is positioned facing toward ... | 05/12/1998 |
| 5709240 | Check valve and backflow preventer A check valve or backflow preventer has a valve mechanism mounted to a valve cover for removal and replacement as a unit. The valve clapper is resiliently supported to accommodate variations in tolerance. The valve seat is removably secured within the val... | 01/20/1998 |
| 5676348 | Asymmetric seal segment configuration A valve comprising a body having an interior cavity, an inlet port and an outlet port; an upstream seat and a downstream seat positioned within the cavity, each seat including a bore in alignment with the inlet and outlet ports to define a flow passage th... | 10/14/1997 |
| 5671776 | Valve mount assembly An end body 34 is formed with a chamber 45 having a bevelled surface 62 and a cylindrical wall 60 in a portion thereof. A sleeve 46 is formed with an outward flange 48 at one end thereof and an annular bead 50 near another end 54 thereof. The sleeve 46 is... | 09/30/1997 |
| 5618026 | Hybrid rotary control valve assembly There is provided a hybrid rotary control valve for use on existing rotary concentric control valve, or ball valve, platforms. In particular, the hybrid rotary control valve comprises a concentric valve chamber, adjustable valve seat, eccentric control va... | 04/08/1997 |
| 5562116 | Angle entry rotary valve Straight line flow rotary valves with the valve member flow passage (21) turned away from the pipeline flow axis (22), to dispose the valve internals to an access port (50) located downstream on the same flow axis of the valve member (11 ). Another embodi... | 10/08/1996 |
| 5503180 | Valve having easily replaceable seat A valve has a seat that is replaceable without disassembly of the bonnet from the body or removal of the stem and closure member. The seat is maintained in a fixed position within the body of the valve by a single retainer member that is readily separable... | 04/02/1996 |
| 5485984 | Diaphragm valve A diaphragm valve is provided with a removable metallic elastic seating ring (7) having a first passage (10) and at least one second passage (11) extending through it. The first passage communicates with an inlet passage (8) of the valve while the second ... | 01/23/1996 |
| 5485983 | Seal apparatus for a flow control valve A gas metering valve is provided for selectively providing a series of different calibrated gas flow rates. The valve includes a valve body having a gas inlet, a gas outlet, a chamber situated between the gas inlet and gas outlet. The valve also includes ... | 01/23/1996 |
