Class / Patent application number | Description | Number of patent applications / Date published |
251329000 | Bodies | 16 |
20090057598 | Resilient Wedge Gate Valve - A resilient wedge for a gate valve displaceable by a valve stem along a longitudinal axis extending through at least a portion of a valve body. The resilient wedge is displaceable between an open position and a closed position and includes a pair of wedge guides each having a channel portion for engaging respective body guides on an interior cavity of the valve body. A wedge body having a pair of slots is configured to receive at least a portion of the wedge guides. | 03-05-2009 |
20090095934 | PRESSURE RATED OIL FIELD GATE VALVE - The disclosure provides an efficient design for a pressure rated oil field gate valve that meets the challenges of providing a quality product with minimal increase in price due to the design. It minimizes weight increase in the valve body over valves not meeting strict pressure specifications, due to strengthening ribs at strategic places without having to increase the overall body size as in commonplace in the industry. It provides redundancy of seals with minimal costs and no change in seat pockets over valves not capable of meeting the higher standards. It provides multiple shear points along a valve stem that can still allow a user to operate the valve from external to the valve bonnet. It further provides for additional sealing of the valve bonnet to the valve body by using elasticity in metal over long lengths to maintain a compression seal between the bonnet and the body. | 04-16-2009 |
20090236555 | GATE VALVE - A gate valve which comprises a body ( | 09-24-2009 |
20110163251 | SLIDE VALVE - A gate valve, comprising a body ( | 07-07-2011 |
20120068100 | GATE VALVE - Roller insertion grooves are formed along the longitudinal direction of inner wall portions of side frames, which are provided in the interior of a housing that makes up a gate valve. Respective pairs of retaining rollers are inserted into the roller insertion grooves. A valve disk is tilted, such that in a valve closed state in which the valve disk is seated on a valve seat, a load imposed from a displacement block, which is connected to a valve rod and tiltably displaced thereby, is imposed on the retaining rollers, the load being borne by first and second pressure receiving bodies, which abut against the retaining rollers and are disposed on the side frames. The first and second pressure receiving bodies are formed from a material having a hardness greater than that of the side frames. | 03-22-2012 |
20120068101 | SLEEVE SEAL FOR GATE VALVES - A gate valve sleeve including a reinforced elastomeric valve sleeve member with an integrally molded reinforcing member disposed therein. In one embodiment, the reinforcing member comprises a pair of parallel spaced ring elements connected by a plurality of spacers. In another embodiment, the reinforcing member comprises first and second ring member abutted to form a T-shape. In a further embodiment, the reinforcing member comprises a ring and a plurality of axially oriented spacer members. In yet a further embodiment, the reinforcing member comprises a pair of ring elements connected by a plurality of pins. The pins are fixed to one of the ring elements and are slidably engageable with the other ring element. In an alternate embodiment, an auxiliary ring member is located within an interior opening of the reinforcing member. | 03-22-2012 |
20120161055 | GATE VALVE - A gate valve includes: a valve box; a support body disposed inside a hollow portion; a valve plate including a fixed valving section, a movable valving section sliding in a direction in which a flow passage is extended, a first peripheral region; and a second peripheral region; a first biasing section disposed at the first peripheral region, allowing the movable valving section to move toward a first opening portion, allowing the movable valving section to come into contact with an inner surface, pressing the movable valving section onto the inner surface, and closing the flow passage; and a second biasing section disposed at the second peripheral region, allowing the movable valving section to move toward a second opening portion, and releasing the flow passage by separating the movable valving section from the inner surface. | 06-28-2012 |
20120175544 | THERMOPLASTIC COMPOSITE BASED GATE VALVE - A displaceable valve body incorporated into a housing including a rigid thermoplastic body including suspended within the housing by a vertically displaceable stem associated with a solenoid. A softer thermoplastic material is applied in perimeter extending fashion to an exterior of the first material for sealing the valve when displaced to an interrupting position established between inlet and outlet locations communicating with the valve housing and, in the lowered position, a lower and arcuate configured edge of the body seals the interior of the valve housing. The solenoid is mounted atop the housing and communicates with the body via an interiorly/vertically translating stem in order to selectively lift and lower the body relative to a through flow interior established within the housing. | 07-12-2012 |
20120280164 | 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 communicated with the valve passage is formed in the valve body, a valve disc for closing and opening the passage is arranged in the valve cavity, the valve disc is fixedly connected with a valve rod through a valve rod connecting hole of an eyeglasses plate, and the eyeglasses plate is also provided with the diversion hole and a hole for placing the valve disc. The outer wall diameter of the diversion hole is greater than the diameter of the valve passage, and the height of the diversion hole is the same as the length of the valve passage passing through the valve cavity. | 11-08-2012 |
20130068983 | VALVE ARRANGEMENT OF A BLIND FLANGE VALVE - A valve arrangement to ensure zero leakage from a blind flange valve is described. The blind flange valve is adapted to seal a pipeline into complete sealing according to set requirements. The base, or bottom, of the blind flange valve is in fluid communication with the inlet of an actuateable first valve that is in fluid communication with the inlet of a second actuateable valve. A fluid chamber is in fluid communication with the outlet from the first valve and the inlet of the second valve. The outlet from the second valve can be drained out, and that respective actuateable valves can be actuated by signal from predetermined sensor or sensors. | 03-21-2013 |
20130240774 | SELF ALIGNING SPHERICAL BACKSEAT ASSEMBLY FOR A VALVE - A gate valve assembly having a body, a gate, a stem, and a backseat for sealing between the stem and the body. The backseat is an annular member with a complementary surface on its inside that fits over a spherically shaped section of the stem; thus allowing the backseat to rotate and pivot with respect to the stem. An outer surface of the backseat is beveled for sealingly engaging a stem passage formed through the body. A flex member is provided that is for sealing a surface adjacent the backseat. The flex member can form a seal between the backseat member and the stem or between an annular retainer and the backseat. | 09-19-2013 |
20140042354 | Pressure Control Valve Assembly - A pressure control valve assembly includes a valve body including a valve opening that is characterized by an axis, a bonnet assembly removably attached to the valve body, wherein the bonnet assembly and the valve body collectively form a valve housing, and the valve housing defines a moving direction that is substantially perpendicular to the axis, a strongback assembly movably disposed in the valve housing and capable of moving in the moving direction defined by the valve housing, and a valve gate movably mounted on the strongback assembly and selectively sealing the valve opening, wherein the bonnet assembly, the strongback assembly and the valve gate are detachable from the valve body and from each other. | 02-13-2014 |
20140077117 | FLUIDTECHNISHES FLACHSCHIEBERVENTIL - The invention relates to a flat gate valve for fluid applications having a sandwich design and including at least one input port, one output port, a top plate and a bottom plate, with a sliding element being provided between said top plate and said bottom plate, which sliding element can be used to modify the fluid paths and flow characteristics which are adjusted by the position of the sliding element relative to the top plate and the bottom plate. The invention is characterized in that at least one spacer is provided between said top plate and said bottom plate which defines a distance of said top plate to said bottom plate, which distance is larger by a gap of a defined gap size than the thickness of said sliding element, wherein the sealing of the flat gate valve is exclusively accomplished by means of the set gap. | 03-20-2014 |
20140175318 | COATING METHODS AND COATED ARTICLES - One aspect of the present invention includes an article. The article includes a substrate and a coating disposed on the substrate, wherein the coating includes a plurality of cermet particles bonded along their prior particle boundaries. The plurality of cermet particles have a median particle size less than about 5 microns and less than 25 percent of the plurality of cermet particles include melted and re-solidified particles. Gate valves are also presented. | 06-26-2014 |
20150069282 | GATE VALVE - Disclosed is a gate valve, which comprises a valve blade | 03-12-2015 |
20150323084 | Valve wedge for a slide valve - Valve wedge for a slide valve including a rough cast metal wedge core encapsulated in a soft seal encapsulation and having two guide members projecting transversely in opposite directions, each of the guide members including a sideways projecting rib of the rough cast wedge core and a prefabricated wear and corrosion-resistant slide shoe arranged thereon, each rib having laterally opposite lateral surfaces and each shoe including two opposite lateral walls with inner surfaces, each shoe being fixedly vulcanized to the respective one of the ribs by means of soft seal encapsulation present between the rough cast wedge core and the shoe where the outer lateral surfaces of the ribs are finished surfaces and the opposite inner surfaces of each of the slide shoes is laterally rigidly supported by the corresponding outer lateral surfaces of the respective one of the ribs so that each rib laterally rigidly supports the respective one of the slide shoes. | 11-12-2015 |