Class 251/357 - Removable seat engaging element

Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter in which the valve is provided with a readily
No. of patents: 157
Last issue date: 11/08/2011

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Number	Title	Issue Date
8052119	Valve device A valve device includes: a valve housing defining a cylindrical space connected to a high-pressure source, and having a first communication hole open at a valve seat located at a bottom portion of the valve housing and providing fluid communication between the cylin...	11/08/2011
7387292	Apparatus to connect a stem to a valve member Apparatus to connect a stem to a valve member and, more particularly, apparatus to connect a threaded stem to a valve member of a control valve are disclosed. An example apparatus includes the threaded stem received in a threaded opening of the valve member and a pl...	06/17/2008
7341073	Valve member for a balanced pressure reducer A valve member (1) for a balanced pressure reducer, said valve member (1) having a wide head (1′) designed to co-operate with a valve seat (6), said valve member (1) having a central body (2) made of a material that is har...	03/11/2008
7328222	Method and apparatus for preserving data coherency in a database by generating a command object that includes instructions for writing a data record to a local cache A method of and system for managing cached data across disparate systems is disclosed. A system for providing cached data coherency includes: a client computer, an application server, a main database, one or more remote application servers, and a communication netwo...	02/05/2008
7282097	Slit valve door seal Embodiments of the invention generally provide a slit valve door seal. In one embodiment, a slit valve door seal includes a ring-shaped base having a center axis and at least one finger extending from the base. The finger is oriented substantially parallel to the ce...	10/16/2007
7266891	Method for sealing a throttle valve housing The present invention is a method where a one-piece throttle valve is fastened to a throttle valve shaft in a first step. In another step, at least one elastic compensating element is placed onto the throttle valve. In another step, the elastic compensating element ...	09/11/2007
7249609	Yard hydrant with closure valve check valve A yard hydrant having a valve body with a valve seat and a drain port. A closure valve disposed within the valve body and engaging the valve seat. The valve body having a conduit in fluid communication with the drain port and a hollow interior of the valve body. A c...	07/31/2007
7237574	Controlled dispersion multi-phase nozzle and method of making the same A nozzle design and method for designing such a nozzle being adapted for three phase slurry flow from the choke into the flash tank during pressure let-down in autoclave mining operations that uses a selection of the expansion ratio in the choke to select a nozzle d...	07/03/2007
7234680	Combination valve and regulator with vented seat for use with pressurized gas cylinders, particularly oxygen cylinders A combined valve-regulator apparatus, for safely regulating the flow of combustible gases such as oxygen. A compressible o-ring is used to provide controllable sealed seating of the valve and regulator during operation. A system is provided in the valve-regulator ap...	06/26/2007
7172172	Valve packing removal device A valve having a valve packing removal device attached thereto is disclosed. The valve may include a valve plug reciprocally disposed within the valve housing and connected to a sliding stem. The packing may be provided about the valve stem to ensure or minimize lea...	02/06/2007
7165327	Method for installing a valve member in an auxiliary control valve device A method for arranging a valve element in an additional control valve device includes provides that, after a first position has been set, a valve plate is pushed onto the stem until the valve plate contacts the stop of a trapping magnet. The valve plate is then conn...	01/23/2007
7165505	Integrated accessory for an inflatable apparatus Apparatus including an inflatable enclosure delimited by a flexible wall to which an accessory is secured. The wall has an opening defined by an edge to which a protruding reinforcement is secured; two rigid frames straddle the edge of the opening on each side of th...	01/23/2007
7134315	Pulse radar level sensing gauge An improved pulse radar level sensing gauge for insertion into a storage or processing tank includes a housing; a probe cover comprising a sealing flange; and a probe for sensing electrical and mechanical properties, positioned at least partly below the sealing flan...	11/14/2006
7125003	Liquid treatment injector A reagent injector and/or aerator for aqueous fluids can use a variety of different removable end caps to adapt a venturi to different types of water treatment systems. The invention is adjustable because the end caps can be removed and springs that activate poppet ...	10/24/2006
7114699	Combination valve and regulation for use with pressurized gas cylinders, particularly oxygen cylinders A valve apparatus, and combined valve-regulator apparatus, for safely regulating the flow of combustible gases such as oxygen. ...	10/03/2006
7069941	Electronic faucets for long-term operation An electronic faucet (10) mounted on a countertop (12) includes a housing, at least one fluid inlet line (24a, 24b) extending into the housing, a fluid outlet (46) from the housing, a solenoid (142, 143) for op...	07/04/2006
7060184	Quick-drain valve member for use with filter apparatus A filter apparatus comprises a filter element to be positioned in an interior region defined by a housing. The filter element comprises a quick-drain valve member to block a flow of fluid from the interior region through a quick-drain outlet defined by the housing w...	06/13/2006
7056806	Microfeature workpiece processing apparatus and methods for controlling deposition of materials on microfeature workpieces The present disclosure provides methods and apparatus useful in depositing materials on batches of microfeature workpieces. One implementation provides a method in which a quantity of a first precursor gas is introduced to an enclosure at a first enclosure pressure....	06/06/2006
7000898	Vertical shut-off valve A vertical shut-off valve is provided to get instant access of a fluid supply delivered from a pressurized inlet source to the outlet of the valve housing body. A movable stem assembly has of an upper member, a ring seal, and a base plate is engaged with a valve sea...	02/21/2006
6991218	Control valve with retained pin for easy valve trim maintenance A process control valve includes a valve stem, a valve plug. The valve stem and the valve plug are attached to one another by an arrangement that includes a locking pin that passes through substantially aligned bores in the valve stem and the valve plug. The locking...	01/31/2006
6978801	Backflow prevention valve A backflow prevention valve includes a cylindrical case member with an inflow opening at one end and an outlet at the other end or a peripheral surface or both, and a valve member contacting a peripheral edge of the inflow opening for closing the inflow opening. An ...	12/27/2005
6969048	Valve element for supplementary control valve device The valve element is composed of a valve stem, at one of whose ends a valve head is arranged, said valve head being of concave design in the direction of the valve stem, having on the outside a continuous annular region and having at least two cutouts between the an...	11/29/2005
6901962	Surge prevention device A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves locat...	06/07/2005
6892999	Probe activated valve system A probe activated valve system is disclosed that permits easier and safer testing of fluids in a pressurized system. The system has a shell having a valve passage. The valve passage has an end through which the valve passage is fluidly connected to a probe passage. ...	05/17/2005
6874753	Refrigeration modulating valve sealing device A sealing device for a modulating valve of the type having a valve body defining a flow passage, an inlet and outlets, a valve displaceable in the flow passage, and an actuator having an actuator rod rotatably coupled to the valve for displacing the valve in the flo...	04/05/2005
6837485	Flow quantity control valve A flow quantity control valve includes second spring holder that is fixed within housing and holds one end of valve spring which is located on a side of valve disk. The second spring holder is a roughly cylindrical member made of a material with a lower thermal cond...	01/04/2005
6830230	Air blast device The invention relates to an air blast device comprising an air flow control device disposed between an inlet conduit and an outlet conduit. The control device comprises an evacuation valve (16) that controls the flow of the air contained in a rear chamber to ...	12/14/2004
6811140	Shut-off valve assembly A shut-off valve assembly for refrigerant liquid and/or gases including a valve body (1) having an inlet port, an outlet port and a flat annular valve seat, and a bonnet (2) fitted on the valve body (1). The bonnet (2) is provided with an...	11/02/2004
6793198	Banded valve plug head A valve plug design is disclosed that uses a plug head band and a retaining ring to restrain a valve plug head to a valve plug stem. This invention is specifically directed to providing valve plugs where the plug head material is different and distinct from the plug...	09/21/2004
6789784	Seat ring for valves An improved seat ring, valve body, and seat ring valve assembly have self-aligning characteristics that reduce leakage without the need for an unacceptably high level of assembly torque. The seat ring includes at least one annular thrust bearing surface rim for rece...	09/14/2004
6776182	Sealing structure of stop valve A stop valve which is fitted with a cylindrical supporting portion is comprised of a ring-shaped rigid axial portion, a ring-shaped platy bendable valve portion extending outward, and a sealing lip portion extending inward. The sealing lip portion has a first sealin...	08/17/2004
6776392	Retractable plug assembly A retractable plug assembly for engaging a seat ring seating surface comprises a plug housing, a plug body, a retainer ring, a wear ring, a spring retainer and a valve spring. The plug housing has the plug body slidably disposed therewithin and defines a plug body s...	08/17/2004
6708951	Annular sealing device having a positive stop means for use in a valve member An annular sealing device having a positive stop to prevent over pressurization on the sealing device. The annular sealing device includes a substantially rigid support member having at least one substantially flat outer surface portion. There is a generally round c...	03/23/2004
6698720	Valve member with a crimped gasket, and a method of manufacturing such a member In a valve member adapted to co-operate with an annular seat and comprising a plate with an annular channel for receiving a gasket which is crimped by folding in an outer wall of the channel, any risk of the gasket being ruptured is minimized by the outer...	03/02/2004
6585500	Valve fastening structure of a reciprocating compressor utilizing permanent magnets A valve fastening structure of a reciprocating compressor is provided. The valve fastening structure of the reciprocating compressor includes a piston, which is combined with a moving magnet of a driving motor and is in a linear reciprocating motion insid...	07/01/2003
6565065	Disc valve adaptor An adaptor is for a rising disc valve which has a handle for rotating a stem in a housing bore having a shoulder and which displaces a disc valve member which seals against a frusto-conical housing seat spaced from the shoulder. A stack of Belleville -ste...	05/20/2003
6390442	Two-port valve There is provided a two-port valve in which a deviation of a degree of parallelization of a valve member and a valve seat can be corrected automatically, which has excellent airtightness, and in which assembly and replacement of the valve member are easy....	05/21/2002
6367767	Control member for a piezo-valve A control member for a piezo-valve having an elongated flexible element, which at one of its two axial ends has a respective sealing face on oppositely placed longitudinal side faces. The two sealing elements are a common component of a sealing body, whic...	04/09/2002
6322051	Elastomeric molded valve stem and spring hat A valve comprises a valve body including a valve cavity with an inlet and an outlet. The valve body has a valve seat in the valve cavity. The valve seat has a flow passage disposed between the inlet and the outlet. A valve stem is movable in the valve cav...	11/27/2001
6164311	Pressure regulator for watering system A pressure regulator for a drinking system for birds or other animals that includes a housing and first and second engaging members for engaging the elongated supports for the fluid supply conduit of the drinking system. The first engaging member includes...	12/26/2000

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Class 251/357 - Removable seat engaging element