Matches 1 - 50 out of 329 1 2 3 4 5 6 7 >
Match Document Document Title
7600528 Double-disk slide valve  
A double-disk slide valve ( 10 ), the shut-off plates ( 16, 17 ) of which are displaceable by means of an actuator rod ( 21 ) and which is provided with a bridging pipe ( 22 ) having two sealing...
7578496 Valve arrangement  
A valve arrangement includes a valve body defining an enclosure, having a bonnet connected to the valve body. A stem is rotatably attached to the valve body and positioned at least partially within...
7520297 Pressure regulator device and system  
A pressure regulator is provided. In one embodiment, the pressure regulator includes a housing having a supply port for receiving a pressurized medium within the housing and an outlet port for...
7506660 Gate valve with replaceable inserts and method of refurbishing same  
A gate valve includes a valve body having a cylindrical passage defining a flow path through the valve, a gate for controlling fluid flow through the valve and a replaceable wear-resistant...
7481239 Gate valve with replaceable inserts  
A gate valve includes a valve body having a cylindrical passage defining a flow path through the valve, a gate for controlling fluid flow through the valve and a replaceable wear-resistant...
7458559 Bi-directional knife gate valve apparatus and method  
An improved method and apparatus for a valve assembly features a valve body, a first seat ring mounted in the valve body, a second seat ring mounted in the valve body, and a retractable blade gate...
7448595 Shut-off fitting  
A shut-off instrument for a flow medium, in particular a slide valve instrument designed for pressurization on both sides with an instrument housing forming a flow channel and a slide valve chamber...
7422653 Single-sided inflatable vertical slit valve  
A vacuum chamber having a gate valve including a chamber housing defining an internal vacuum region and first and second openings through the chamber housing and a gate valve secured to the chamber...
7377758 Fluid pump  
A pump comprising a piston in communication with a valve chamber provided with a first valve seat and a second valve seat, and a resilient valve element comprising a first tapered portion, a second...
7306201 Gate valve with tongue and groove or bridging seal to annular seat elements  
A gate valve for controlling fluid flow, in which a valve body forms a cylindrical flowbore and includes a gate cavity intersecting the flowbore to provide opposed openings into the flowbore. Seat...
7296783 Vacuum processing apparatus  
An inexpensive and reliable vacuum processing apparatus is provided. The vacuum processing apparatus comprises a sealed gate located between two vacuum vessels for allowing them to communicate with...
7255329 Gate valve with offset valve stem  
An improved gate valve has a main body defining a flow passage, and a cylindrical gate member, which has a continuous seal disposed within a groove in the gate surface. The gate is actuated by a...
7225827 Insertion valve and installation method  
A valve assembly for insertion in a pipe containing fluid under pressure includes a valve body adapted to be assembled over the pipe and a valve-stopping mechanism that mounts on the valve body....
7114702 Slide valve  
In a slide valve, especially for coating installations, for fluidic separation of two modules or chambers, interconnected through an opening, containing at least one slide plate, integrated in a...
7000899 Shutoff device  
A shutoff device for shutting off liquids or gases comprises a device housing ( 10 ) and a device ( 13 ) movable in said housing ( 10 ), the device ( 13 ) being provided with an opening ( 14 ). For...
6978980 Slide valve closure for the casting of a metal melt and a refractory plate unit belonging to it  
In a slide valve closure for the casting of a metal melt a slider plate and a stationary closure part are braced against each other by means of spring units or by other means. There is provided a...
6966538 Gate valve  
A gate valve has a valve rod equipped with a valve plate having a pair of valve plate surfaces, wherein the valve rod is tilted by an actuator to thereby effect highly reliable valve...
6959912 Injectable packing unit in a single knife gate body  
A knife gate valve is provided, comprising: a unitary valve body having a flow channel extending there through, a guide segment and a stuffing box. A knife gate is located in the guide segment, the...
6959908 Gate valve flexible wedge  
A flexible wedge has a pair of pressure retaining plates and a central wedge body therebetween. The pressure retaining plates have inclined seating surfaces on opposed outer faces thereof for...
6957659 Sliding disk valve for pneumatic conveyance of abrasive material  
A linear actuated disk valve for a fluid conveyance system constructed with a valve body having an internal chamber and a passage through the valve body, the valve body having opposite ends with...
6957816 Loop seal for knife gate valve  
A seal for use with a knife gate valve is disclosed, the seal having a loop to which is attached an axially facing sealing lobe. A sealing surface is positioned on the sealing lobe, the sealing...
6918574 Reduced torque gate valve with roller screw  
A gate valve is disclosed which comprises a valve body which includes a flow bore that extends completely therethrough and a gate cavity that extends partially therethrough and intersects the flow...
6893002 Lockout valve  
A lockout valve is provided having a valve body with an inlet conduit, a central chamber and an outlet conduit, to form a continuous passageway. The lockout valve also includes a slide mechanism...
6854708 High-vacuum valve with retractable valve plate to eliminate abrasion  
A valve achieves a high-vacuum seal and opens and closes with no sliding or otherwise abrading contact between the sealing plate and the valve seat, while maintaining pressure of the plate against...
6745999 Gate valve for high-density slurries, and a valve body assembly, and a solids-containing wall lining means therefor  
Flexible, plastic, solids-containing liners or panels are disposed in the chamber of the valve body for contacting, interfacing engagement with the gate. Accordingly, the panels and gate...
6726178 Gate valves  
The invention provides a gate valve comprising a wedge-shaped gate 10 movable into a passageway 11 to seal the passageway, the wedge-shaped gate having first and second sides 13, 14 and a...
6688324 Valve for hydrate forming environments  
Methods and apparatus for allowing the injection of hydrate inhibitors into a valve cavity without washing out the valve seals, generally comprising a valve having a sealing member, such as a gate...
6619619 Clamping device for a refractory-made plate of a sliding gate  
The object of the present invention is a clamp for clamping device for a refractory plate in a seating of a slide valve in a casting installation, the said clamp having on one hand a thrust zone...
6488263 Valve stem and method of manufacture; improved stem packing  
A valve stem has a thickness of hardfaced material on its outer diameter in the area contacting the stem packing where the seal is formed which prevents corrosion, erosion and/or scratching of the...
6422535 Knife gate valve  
A knife gate valve having modular ends for attachment to pipe ends is disclosed. A knife gate is movable transversely to a fluid flow path and constrained by guide plates positioned along opposite...
6375157 Slide valve  
A valve substantially made of plastic material having a housing which is connected to a conduit for a flowing medium, which housing contains a slide which is capable of movement transversely to the...
6367770 Vacuum valve for separating two vacuum chambers  
A vacuum valve for separating two vacuum chambers and including a valve body having an opening and a valve seat having two sealing surfaces encompassing the valve opening, and a valve slide...
6338469 Flexible wedge gate valve  
A wedge gate valve having a valve body defining a valve chamber and flow passages and upwardly diverging circular seat surfaces of circular, flat configuration and defining seat planes. A valve...
6286307 Exhaust gas control device for an engine  
An improved exhaust gas control device that has a hollow diverter pipe to divert exhaust around the muffler and in which a gate valve is slidably mounted to open and close the hollow pipe thus...
6273053 Engine shutdown valves  
The shutdown valve design is comprised of a housing in which a gate slides from an open to a closed position in a guillotine type motion. At one end of the housing is an unobstructed bore, which is...
6260490 Burner isolation valve for pulverized fuel systems  
A burner isolation valve or gate for use in the coal-delivery pipes of coal-fired power plants. Safety regulations often require that two valves be placed in the coal delivery line between a...
6250604 Valve stem and method of manufacturing, improved stem packing  
A valve stem has a thickness of hardfaced material on its outer diameter in the area contacting the stem packing where the seal is formed which prevents corrosion, erosion and/or scratching of the...
6206338 Fail as-is hydraulic actuator  
A hydraulic actuator for a valve that fails as-is in the event of control line failure. The actuator has a housing carrying an actuator piston for actuating the valve open or closed. An elongate...
6131594 Gas cartridge actuated isolation valve  
An isolation gate valve (10, 10a, 10b, 124, 146, 210) is provided which has a valve body (12, 126, 212) presenting a passageway (14, 214) therethrough; a shiftable, apertured gate member (18, 224)...
6125874 Gate valve having fail safe actuator  
There are disclosed three embodiments of a gate valve having a fail safe actuator which is especially useful in a subsea environment at considerably depth below water surface. The gate is urged to...
6116572 Valve  
6016826 Automatic center cavity equalizing valve  
An automatic center cavity equalizing valve for equalizing pressure in a main valve. The equalizing valve includes a body with a bore for providing fluid communication between an upstream port and...
6010115 Cavityless gate valve  
A gate valve has a pair of spaced-apart body halves with a slot positioned between them. The slot extends transverse, preferably perpendicular, to a fluid passageway. In one embodiment, an O-port...
5979874 Split knife gate valve having a uniformly compressed and constrained resilient gate seat and method for producing the same  
A knife gate valve is constructed of two body members bolted together about a resilient gate seat. The two body members and the resilient gate seat include sets of axially aligned bolt holes...
5967168 Method of connecting branch pipe  
A method of connecting a branch pipe to an existing main pipe is disclosed. The method includes the steps of: connecting and communicating a branch-pipe joint having a branching pipe portion to an...
5899438 Gate valve having a swingable-slidable valve plate  
A gate valve has a manual actuator that includes a crank having a direct pivotal connection with a slidable valve plate. The valve plate has a teardrop configuration that enables the valve plate to...
5890700 Gate valve  
A packingless gate valve is disclosed which includes a housing having opposed similar housing halves with primary resilient sleeve units which compressibly engage each other in the valve open...
5836569 Guided gate valve  
A guided gate valve having a valve body with an interior surface defining a passage having an upstream opening an downstream opening. Upstream and downstream valve seats are mounted within the...
5803431 Shearing gate valve  
The shearing gate valve includes a gate reciprocably mounted between opposing seat rings. The gate has an opening which aligns with bores in the mating seat rings. The opening in the gate and the...
5762089 Hardface coating for seal surfaces in a gate valve  
A gate valve for use in a high pressure line has a movable gate and a static seat within a valve body. The seat has a seat face which is in sliding contact with a gate face. The seat and gate faces...
Matches 1 - 50 out of 329 1 2 3 4 5 6 7 >