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| Number | Title | Issue Date |
| 7845619 | Two-part back cap for a plug valve and plug valves incorporating same A two-part back cap for a plug valve includes a back cap seal body and a back cap retainer nut. The back cap retainer nut secures the back cap seal body within the plug valve and securely supports the back cap seal body. A gap between an outer periphery of the back ... | 12/07/2010 |
| 7699291 | Two-part back cap for a plug valve and plug valves incorporating same A two-part back cap for a plug valve includes a back cap seal body and a back cap retainer nut. The back cap retainer nut secures the back cap seal body within the plug valve and securely supports the back cap seal body. A gap between an outer periphery of the back ... | 04/20/2010 |
| 7644904 | Pressure relief valve for use in cementitious material pumping systems A pressure relief valve integrally formed with a section of conduit in a closed system for pumping cementitious material eliminates any dead space in the system within which the cementitious material may flow and set, and thus avoids system disassembly for cleaning ... | 01/12/2010 |
| 7597307 | Two-part back cap for a plug valve and plug valves incorporating same A two-part back cap for a plug valve includes a back cap seal body and a back cap retainer nut. The back cap retainer nut secures the back cap seal body within the plug valve and securely supports the back cap seal body. A gap between an outer periphery of the back ... | 10/06/2009 |
| 7516942 | Plug-style air-conditioning service valve An air-conditioning service plug-type valve includes a valve body having a chamber. First and second openings extend through the valve body. The air conditioning plug-type valve also includes a stem having a plug portion configured for being received in the chamber ... | 04/14/2009 |
| 7481418 | Two-part back cap for a plug valve and plug valves incorporating same A two-part back cap for a plug valve includes a back cap seal body and a back cap retainer nut. The back cap retainer nut secures the back cap seal body within the plug valve and securely supports the back cap seal body. A gap between an outer periphery of the back ... | 01/27/2009 |
| 7429029 | Sealing structure for a rotary valve of a squirt gun The present invention is a sealing structure for a rotary valve of a squirt gun. The rotary valve is placed into a housing of the squirt gun body between an inlet duct and an outlet duct. The rotary valve is provided with a through hole, and both ends of the rotary ... | 09/30/2008 |
| 7407148 | Rotary valve assembly for fluid filtration system A valve assembly is disclosed for use in conjunction with a replaceable filter cartridge system. The valve assembly includes a head member having an interior valve chamber defining a central axis, and inlet and outlet passages extending parallel to and communicating... | 08/05/2008 |
| 7347406 | Shut-off valve and method of shutting off opening of vacuum chamber A shut-off valve disposed between openings formed to a vacuum chamber includes a casing, a valve body disposed inside the casing and having a shaft rotating around a central axis of the valve body, a drive unit for driving the valve body to rotate the shaft, and an ... | 03/25/2008 |
| 7314452 | Self flushing luer activated blood sampling devices A blood sampling device for allowing a fluid pressure measurement and a fluid sample to be taken from a patient, having an inlet port configured to receive blood from the patient, an outlet port configured to be coupled to a monitoring channel having an infusion flu... | 01/01/2008 |
| 7255130 | Control valve for an engine cooling circuit A control valve (10) for a fluid circulation circuit comprises a body (12) which is equipped with a fluid inlet (18) and at least two fluid outlets (20, 22 and 24) and which delimits a cylindrical housing for an adjusting member ( | 08/14/2007 |
| 7240691 | Rotary bleed valve assembly A rotary bleed valve (10) for a gas turbine engine comprises a passage (11) connecting high pressure gases from a compressor to an exhaust and a valve member (12), the valve member (12) may be rotated within the passage (11)so as t... | 07/10/2007 |
| 7204474 | High-pressure plug valve A plug valve has a valve body, a cage fitted within the valve body and a rotatable plug housed within a cylindrical cavity in the cage, for controlling fluid flow through the valve. The cage has first and second opposed flat side surfaces, each side surface has a po... | 04/17/2007 |
| 7195225 | Rotary valve assembly The present invention is directed to rotary valve assemblies and, more particularly, to a rotary valve assembly for use in an oil and gas production system. The valve assembly comprises a movable actuator sleeve movable in response to hydraulic pressure and at least... | 03/27/2007 |
| 7188477 | High temperature dynamic seal for scramjet variable geometry A seal assembly for use in an engine, such as a scramjet engine, having a movable element, such as inlet cowl flap, is provided. The movable element has an outboard structural member which requires thermal protection. The seal assembly includes a sealing element and... | 03/13/2007 |
| 7178786 | Stem construction for rotatable valve body A valve stem construction for a manipulable valve member used to control fluid flow through a valve. The valve stem extends externally of the valve housing for engagement by a valve handle used to manipulate the valve member between open and closed positions. The va... | 02/20/2007 |
| 7166047 | Toy ball A toy ball is formed from two shells and a pair of lock mechanisms 220. During construction, the shells, which may be hemispherical, are mated together and then the lock mechanisms are secured to the shells to form a substantially smooth-surfaced sphere. The ... | 01/23/2007 |
| 7150445 | Valve device having a long adjustment stroke The invention provides a control valve device enabling the positioning precision of its abutment to be reduced without reducing the overall control precision of the valve. For this purpose, the valve device comprises a valve body defining a fluid flow duct in which ... | 12/19/2006 |
| 7114700 | Metering and flow control valve A valve for controlling the rate of fluid flow therethrough by rotating a rotor about a spindle having an inlet bore in communication with an eccentrically oriented o-ring set into an eccentrically oriented slot formed in the rotor. The perimeter of the eccentric sl... | 10/03/2006 |
| 7104521 | Dual chamber orifice fitting valve Apparatus and methods for operating a valve assembly for a dual chamber orifice fitting. The dual chamber orifice fitting comprises a body attached to a top. A passageway connects between the body and the top and allows an orifice plate carrier to move between the b... | 09/12/2006 |
| 7081223 | Method for manufacturing a rotatable plug element and valve A valve for controlling the flow of a gas therethrough which requires no machining in order to attain an effective seal between the valve seating surface and a rotatable plug element. The valve seat surface remains as cast while the plug consists of an overmolded pl... | 07/25/2006 |
| 7073775 | Rotating check valve for compression equipment Methods and apparatus for controlling the flow through a compressor with a valve assembly comprising a rotating body having an outer surface. The rotating body is disposed within a valve cavity in the compressor. A non-contacting seal operates to limit the flow of f... | 07/11/2006 |
| 7066445 | Control valve having closely sealing effect A control valve includes a valve seat, a control switch, and at least one leakproof ring. Thus, when the control valve is disposed at a closed state, the water inlet or the water outlet of the valve seat is stopped by the leakproof groove of the control switch and i... | 06/27/2006 |
| 7059585 | Fluid valve control members having contoured sealing surfaces Fluid valve control members having contoured sealing surfaces and methods of making the same are disclosed. An example fluid valve control member includes a body portion having a sealing surface configured to engage a sealing ring within a fluid control valve. A fir... | 06/13/2006 |
| 7051996 | Plug-style air-conditioning service valve In a plug-style valve, such as an air-conditioning service plug-style valve, basically including a valve body, a stem, a retainer including a service fitting and a valve core, and a cap, the plug including an intermediate O-ring, between the valve body and the plug,... | 05/30/2006 |
| 7047994 | Stopcocks and methods of manufacture thereof A medical stopcock is provided that is constructed and arranged to withstand high pressures and gamma irradiation. The stopcock generally includes a housing and a valve member. The valve member is trapped within the housing so that, when subjected to relatively high... | 05/23/2006 |
| 7036793 | Stop valve A stop valve includes a valve body, a multishot resilient control sleeve, O-ring and handle. The control sleeve is molded to the valve stem to create an integral but separately molded fluid control member. Inlet line pressure resiliently biases the side walls of the... | 05/02/2006 |
| 7028927 | Flowrate control device, in particular for medical use The invention concerns a device comprising two components connected to each other with possible displacement of one component relative to the other, sealing means arranged between said two components, and flow rate adjusting means actuated by displacement of one com... | 04/18/2006 |
| 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 |
| 6935613 | Compact integrated flanged isolator ball valve The present invention provides a flanged ball valve device which can be connected, as an integrated compact unit, to a pump at the valve flange end of the device by means of an integral flange and to various types of piping systems at the pipe end of the device by m... | 08/30/2005 |
| 6929023 | Back flow prevention device for pipelines conveying fluids A back flow prevention device is shown for use in a plastic pipeline for conveying water, sewage, hydrocarbons or other fluids. A valve body features a flow control mechanism which is formed entirely or primarily of plastic materials. The valve body and its opposing... | 08/16/2005 |
| 6880808 | Gamma-stable high pressure stopcock A medical stopcock is provided that is constructed and arranged to withstand high pressures and gamma irradiation. The stopcock generally includes a housing and a valve member. The valve member is trapped within the housing so that, when subjected to relatively high... | 04/19/2005 |
| 6874759 | Plug valve A main valve body has a first passage, a second passage, and an opening which intersects the first passage and the second passage. A main plug body is rotatably inserted into the opening, and has an upper section into which a handle is inserted, and a lower section ... | 04/05/2005 |
| 6845967 | Control device for an oil drain valve A control device for an oil drain valve can control opening and closing of the oil drain valve at a far end. The oil drain valve includes a base and a control element connected to the base. The control device further includes a guide element and a driving element. T... | 01/25/2005 |
| 6827857 | Control valve and water purification method The present invention consists of an apparatus and method for supplying purified water to a faucet or other apparatus for use from a purification loop maintaining water in constant motion. The apparatus allows the user to select and withdraw the amount of water need... | 12/07/2004 |
| 6824120 | Flow amount control device In a flow amount control device, column shaped valve element is slidably disposed in a cylindrical inner circumferential wall of a valve body. The valve element is provided along an outer circumference thereof with two ring shaped grooves. Fuel stored in the ring sh... | 11/30/2004 |
| 6820630 | Swiveling intake elbow for dry sectional gate valve A dry sectional gate valve having a swiveling intake elbow and shot pin assembly for selectively locking the elbow into a fixed position. A shot pin extends from a pull-knob through the flange of the elbow into one of a plurality of spaced-apart detent slots or hole... | 11/23/2004 |
| 6786465 | Metering and flow control valve A valve for controlling the rate of fluid flow therethrough by rotating a rotor about a spindle having an inlet bore in communication with an eccentrically oriented o-ring set into an eccentrically oriented slot formed in the rotor. The perimeter of the eccentric sl... | 09/07/2004 |
| 6712040 | Variable throttle valve A variable valve comprising a first cylinder having a first aperture and a second cylinder having a second aperture. The first cylinder moves between a first position and a second position. Preferably, the second cylinder moves in cooperation with the first cylinder... | 03/30/2004 |
| 6698718 | Rotary valve A valve assembly including a main body defining a central axis and a gate. The gate includes a curved surface relative to the central axis and the gate is disposed within the main body. The gate is rotatable about an axis of rotation running along the len... | 03/02/2004 |
