Abstract: A coupler including a tubular conduit having a length disposed between a first end and a second end and a thickness disposed between an external surface and internal surface defining an interior passage, and a tubular guide, coupled to the first end, widening between the first end and a tubular guide terminal end of the tubular guide.

Abstract: Pipe sections are often connected together with a spigot end received within a bell end and a gasket provided there between. An assist may be helpful to apply at least a tension if not move the gasket towards a gap between the bell end and an exterior surface of the spigot end of the two pipe portions, and/or against the exterior surface of the spigot end so as to improve the likelihood of an adequate seal.

Abstract: A valve includes a housing, a solenoid arranged in the housing, a pin movable by the solenoid, a piston connected to the pin, and a seal arranged between the housing and the piston. The seal is an axially acting seal which, in the closed state of the valve, interacts with a sealing surface of the piston.

Abstract: Pipe joints and more particularly circular push-on type pipe joints including a flexible gasket having both hard and soft portions and where the soft portion overlaps a flange and an inner curved section of the hard portion.

Abstract: A coiled tubing system includes a first section of coiled tubing, a second section of coiled tubing, a first insert assembly attached at an end of the first section of coiled tubing, a second insert assembly attached at an end of the second section of coiled tubing, and a connector disposed between the first and second sections of coiled tubing and removably coupled to the first and second insert assemblies. A portion of the connector is configured to pivot with respect to a longitudinal axis of the connector.

Abstract: A vacuum container of a laser oscillator includes a first sealing member and a second sealing member that are disposed between a tube and an insertion member. The first sealing member is made of a material having a corrosion resistance higher than the second sealing member, the first sealing member is disposed on a vacuum side relative to the second sealing member, the second sealing member is made of a material having a sealing property higher than the first sealing member, and the first sealing member at least partially includes a deformation portion that deforms in such a manner as to enhance a sealing property thereof.

Abstract: A bush assembly comprising a component having a bore, a bush fitted in the bore and having a flange that extends radially outwardly over a surface of the component surrounding the bore, and a seal assembly for sealing the interface between the flange and the surface of the component, wherein the seal assembly includes a seal member and a layer of sealant between the seal member and the interface between the flange and the surface of the component. Also a method for sealing a bush, a kit of parts for forming a bush assembly, and a clamping tool for forming a bush assembly.

Abstract: A combustor includes a breech end, a plurality of fuel nozzles connected to the breech end and extending downstream from the breech end, and a shroud that circumferentially surrounds the plurality of fuel nozzles inside the combustor. A support extends radially inside at least a portion of the shroud. A leaf spring is between the support and one or more of the plurality of fuel nozzles, wherein each leaf spring includes at least three leaves.

Abstract: A sealing unit (28) that fits within the sealing unit opening (26) of a housing 22. The sealing unit (28) including a sealant arrangement (32) that define a plurality of cable ports (30). The sealing arrangement is also configured for providing a peripheral seal between the housing (22) and the sealing unit (28). The sealing unit (28) includes an actuation arrangement (31) for pressurizing the sealant arrangement (32) within the sealing unit opening (26). The sealant arrangement (32) includes a plurality of sealing modules (33a-33e) each sized to form only a portion of the pressure actuated sealant arrangement (32).

Abstract: A liquid and gas tight bi-directional metal frustro-conical seal is energized by compression between planar, annular faces causing its inner and outer diameters to sealingly engage opposing cylindrical surfaces of inner and outer metal pipes. The contact forces between the concentric sealing surfaces are high in order to locally deform the softer metal and eliminate leakage paths. The sealing ring is backed-up by a similar ring that is reduced in cross-sectional width, such that when compressed the ring does not engage the inner and outer cylindrical surfaces. The second ring is nested with and directly below the sealing ring, and equally axially compressed when the joint is assembled. When the pipe joints are disassembled, the second ring serves to restore the seal ring to its original, deeper frustro-conical shape, allowing the pipe joints to be easily separated for reuse of the piping in a different location.

Abstract: A crown-type probe seal for a female hydraulic coupling member has one or more circumferential, spring-energized seals. One particular preferred seal comprises a closely-wound helical spring which imparts an inwardly-directed radial force to the crown seal. In certain embodiments, the helical spring is substantially encased in a polymer jacket. In yet other embodiments, a liner is interposed between the outer surface of the helical spring and the polymer jacket. An optional, axial extension on at least one end of the crown seal provides a bore liner for a female hydraulic coupling member in which the crown seal is installed.

Abstract: A sealing assembly for forming a seal about an elongate object includes a resilient seal member and a loading mechanism. The resilient seal member includes an inner wall surface defining a channel to receive the elongate object. The seal member has first and second opposed sides. The loading mechanism includes a first pressure member on the first side of the seal member; a second pressure member on the second side of the seal member; a biasing member on the second side of the seal member and interposed between the seal member and the second pressure member; and an adjustable displacement mechanism accessible and operable from the first side of the seal member to displace the first and second pressure members relative to one another to selectively apply a compressive load to the seal member such that the inner wall surface is expanded inwardly to exert a sealing pressure on the elongate object.

Abstract: An improved floating collar assembly for gas turbine combustion units consists of a sheet metal collar with a flat flange and an E seal that is pre-compressed within a block of epoxy. The collar fits over a corresponding fuel nozzle burner tube and is retained on a cap assembly by a flat plate. During assembly, the collar is loose so that it floats, which makes cap assembly easy. During operation, the epoxy used to pre-compress the E seal heats up and burns off, whereupon the E seal opens up and produces a seating load between the collar and plate that is high enough to keep the collar from rotating and thereby reduce collar wear.

Abstract: A radioactive-material container includes a container body that shields nuclear radiation, which includes a cavity that stores a basket containing a recycle fuel assembly, a lid that covers the cavity, and a metal gasket that includes a sealing area that makes a physical contact with the container body and the lid. The sealing area has a specific shape that disperses tightening stress acting on the metal gasket for a sealing.

Abstract: A gasket is adapted to seal between a first member and a second member, and includes a first portion a second portion. The first portion includes a first elastomeric seal portion adapted to be in sealing engagement with the first member. The first portion may also include a clip or a coil spring contained within an elastomeric portion in order to provide a sealing force against the first member. The second portion is preferably molded integral with the first portion and includes a second elastomeric seal portion having a coil spring contained therein. The second portion is adapted to be in sealing engagement with the second member, with the coil spring being compressed in its normal direction when the gasket is assembled between the first member and the second member. The coil spring, then, exerts a sealing force with minimal degradation over time.

Abstract: An improved modular, radially-compliant, redundantly-sealing journal-type bearing assembly comprising two bearing elements retained in a housing and positively loaded in opposing directions by a compression spring disposed therebetween. A shaft to be supported and sealed against leakage by the bearing, such as a valve pintle shaft, is disposed in an axial bore in each of the bearing elements, which bores are fitted as closely to the diameter of the shaft as is possible without causing the shaft to bind in the bores. Each of the radial bearing faces opposite the spring forms a seal with a corresponding internal surface of the housing, defining thereby a redundant sealing system. The bearings are radially compliant within the housing by a predetermined small distance to allow the shaft to be operatively self-centered, such as by an attached valve head mating into a valve seat.

Abstract: A plastic or polytetrafluoroethylene split seal ring having highly flexible, annularly extending, axially spaced apart side walls is disclosed for sealing opposed, concentrically overlapping open end portions of a pair of gas conduits together or for sealing a sleeve of a flexible coupling to end portions of two opposed, spaced apart gas conduits is disclosed. The ring includes an annularly extending base portion, a pair of axially spaced apart, annularly extending side walls connected to and along opposite sides of the base portion. The side walls project radially beyond a radially inwardly or radially outwardly facing surface of the base portion to form a groove in which an expansion or contraction member can be disposed to effect a gas tight seal of the ring against and around a surface of one of the conduits.

Abstract: A metal gasket excellent in sealing performance and capable of sealing with a small pressing force. The metal gasket comprises at least one metal sheath with C-shaped cross-section and a ring elastic core surrounded by the metal sheath and the metal gasket is served for sealing with aid of the contact with the sealing face tightened by exerting a force in the axis center direction, wherein the metal sheath has the worked portion with a locally thin cross-section over the whole length, and when the metal sheath is exerted with a force and deformed, the deflection in the axis direction of the metal sheath due to concentrated stress on the thin worked portion causes to form projections at the both sides of the deflection which projections are pressed onto the sealing face.

Abstract: Single-plate slide, especially single-plate pipe bridge slide (10) with a slide-plate (16) and if necessary a pipe bridge (20), which is or are movable by means of an actuating device (18, 19) within this casing (11) in order to close or open a fluid passage (17) formed in a casing (11), the slide plate (16) or pipe bridge (20) having lateral seal surfaces which correspond with seal surfaces located on the casing side, especially annular seal surfaces (14, 15). At least one of the seal surfaces (14, 15) on the casing side forms part of a seal ring (23) located in the casing (11), which abuts with resilient pre-stressing on the facing seal surface of the slide plate (16) or pipe bridge (20).

Abstract: A metal gasket excellent in sealing performance and capable of sealing with a small pressing force. The metal gasket comprises at least one metal sheath with a C-shaped cross-section and a ring elastic core surrounded by the metal sheath. The metal gasket provides a seal upon exertion of a force in the axis center direction. The metal sheath has a locally thin cross-section over the whole annular length, and when the metal sheath subject to a force and deformed, the deflection in the axis direction of the metal sheath due to concentrated stress on the thin worked portion causes the formation projections at both sides of the deflection which projections are pressed onto the sealing face to form air-tight seals.