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Match Document Document Title
9004090 Sluice valve for operations  
An operation for securing and coupling a coupling flange and a fluid device mounted through the interior of a valve case of a sluice valve for operations can be performed with good efficiency from...
8973897 Valve seat retention pin  
Embodiments described herein relate to a retention pin for retaining a seat member in the body pocket of a gate valve. Two retention pins may be installed on the outer circumference of the seat...
8936701 Coke drum bottom de-heading system  
The present invention features a coke drum de-heading system that includes a de-header valve. The de-header valve includes: (1) a main body; (2) a live loaded seat assembly coupled to the main...
8905374 Double disc gate valve  
The invention provides a double disc gate valve where the discs are movable in a casing by a disc manipulation structure which can change an orientation of at least one of the valve discs relative...
8888068 Split gate valve with biasing mechanism  
A system includes a split gate valve with first and second gate sections coupled together and configured to move together within a cavity of the split gate valve between an open position and a...
8877001 Shuttered gate valve  
Embodiments of gate valves and methods of using same are provided herein. In some embodiments, a gate valve for use in a process chamber may include a body having an opening disposed therethrough...
8813771 Gate valve  
A gate valve for controlling the flow of pressurized fluid having a dynamically-energized seal between a seat ring and a valve body. The dynamically-energized seal may be located in an annular...
8727316 Knife gate valve with urethane liner  
A knife gate valve for specific environments comprises a knife valve with a body, a hand wheel, a yoke sleeve, a gland packing, a gland bushing, a stem, a wedge gate, seating surfaces and the...
8701234 Pig receiver assembly  
A pig receiver and method retrieve pigs in pipeline pigging operations. In one embodiment, a pig receiver includes a pig receiver unit. The pig receiver also includes a pig gate valve assembly...
8690124 Gate valve  
A gate valve and a method for making a gate valve for use with abrasive fracturing fluids, include provided enlarged spaces in the gate valve body wherein sand or other debris from the fracturing...
8679299 Coke drum bottom de-heading system  
The present invention features a coke drum de-heading system comprising (a) at least one coke drum having an orifice therein; (b) a de-header valve removably coupled to the coke drum designed to...
8657256 Vacuum valve  
A vacuum valve, including a valve housing, which has a passage having an axis, a seat that surrounds the passage and that lies in a first plane, and a counter seat that surrounds the passage and...
8613424 Disc valve with diversion hole  
A disc valve with a diversion hole for a solid granule medium aims to solve the problem of material accumulation in a valve cavity and includes a valve body with a valve passage, the valve cavity...
8567759 Advanced fluidics gate valve with active flow control for subsea applications  
A valve assembly for use in a wellhead assembly that includes a valve body, a cavity formed in the valve body, and a flow passage through the valve body that intersects the cavity. Also included...
8511642 Closing unit for a vacuum valve  
A closing unit for a vacuum valve includes a first valve plate (7) for closing a first valve opening (2) of the vacuum valve, a second valve plate (8) for closing a second valve opening (3) of the...
8499783 Gate valve with seals  
A gate valve for mounting in a pipeline comprises a valve body and a gate mounted in the valve body so as to be movable between an open position, and a closed position where a valve opening formed...
8469053 Flow control valve  
A constant-flow valve assembly having a first passageway carrying fluid at a first pressure, a piston chamber, and a second passageway connected to the chamber and carrying fluid at the second...
8448917 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...
8403298 Gate valve with integrated support members  
A gate valve has support members that are attached to a main body structure of the gate valve adjacent to the valve gate opening. These support members are affixed on both sides of the valve gate...
8282074 Delayed coker isolation valve systems  
The present invention provides more efficient, cost effective coke drum isolation valve devices and system as well as more efficient, cost effective methods for isolating the flow of matter from...
8123197 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...
8028972 Gate valve for vacuum apparatus  
Even when a gate valve for a vacuum apparatus used in a vapor deposition apparatus is in an open position, reliability of keeping a vapor deposition chamber vacuum can be improved by protecting an...
7950410 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...
7950625 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...
7849874 Slide valve apparatus and method of manufacturing slide valve apparatus  
A slide valve apparatus includes a first member having a first fluid channel for allowing a fluid to flow therethrough, a second member sliding along the first member and having a second fluid...
7819378 Floating plug gate valve  
A gate valve has a gate that moves in a gate cavity between a lower closed position and an upper open position. A seal member in the gate seals against a downstream seat ring when the gate is in...
7770595 Flow control valve  
In one embodiment, a constant-flow valve assembly is provided that comprises a first fluid passageway carrying fluid at a first fluid pressure, a piston chamber, and a second fluid passageway...
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...
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...
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...
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...
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...
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 sealing...
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...
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...
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,...
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...
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...
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...

Matches 1 - 50 out of 355 1 2 3 4 5 6 7 8 >