Abstract: Flexible seal assemblies having a relatively low torsional rigidity and high longitudinal flexure to thereby allow the flexible seal assembly to flex between adjacent components and maintain a seal, even when movement between adjacent components occurs, is described. In some embodiments, the flexible seal assembly includes one or more layers of metal matrix material, the metal matrix material being comprised of a plurality of short segments of thin wire arranged randomly and sintered together to form a semi-rigid sheet. The one or more layers of metal matrix material can be sandwiched between an upper casing and a lower casing of a metal alloy casing. In various embodiments, additional features are provided for helping to make sure the seal assembly stays together, such as spot welds formed through the seal assembly, an S-shaped casing, and a recess/protrusion feature provided on adjacent layers of metal matrix material.

Abstract: A female undersea hydraulic coupling member is equipped with a plurality of pressure-energized metal seals configured to seal between the body of the female member and the probe of a corresponding male hydraulic coupling member in response to ambient hydrostatic pressure and/or hydraulic fluid pressure. Pressure-energized metal seals may also be provided to seal between the body of the female coupling member and a removable seal retainer or seal cartridge. In one particular preferred embodiment, the pressure-energized seals are back-to-back metal C-seals separated by annular seal supports having a generally T-shaped cross section and retained on one or more shoulders in the body of the female member by a removable seal cartridge.

Abstract: A highly adaptive seal for use in advanced aircraft propulsion and missile systems is provided. The seal is capable of effectively limiting invasive thermal energy and corrosive airflow from entering the internal systems and hardware of the aircraft by managing and controlling the incoming air flow. The seal is configured to be disposed between component parts of the aircraft and create a tortuous path for air flow. The seal maintains contact with the component parts between which it seals by allowing for significant radial and axial displacement freedom of the component parts. Accordingly, hot gas intrusion may be limited in a wide variety of dynamic environments and component displacement conditions. Limiting such hot gas intrusion has a substantial impact on component survivability over the course of free flight of an aircraft.

Abstract: Disclosed herein is a kinetically deposited metal ring seal. In particular, disclosed herein is a joint assembly including a housing, a component, and a seal assembly. The housing defines an opening and a central axis. The component is positioned proximate the opening of the housing. The seal assembly comprises a kinetically deposited metal layer attaching the housing to the component and forming an airtight barrier around the central axis between the housing and the component. The kinetically deposited metal layer comprises a plurality of plasticized metal particles. Accordingly, the kinetically deposited metal layer can be applied at low temperatures, ensuring the temperature stays below the activation temperature of loaded fuel. Further, the kinetically deposited metal layer forms a low volume, airtight seal, which does not degrade over time, and does not require application of high forces to maintain the seal.

Abstract: In order, in the case of an intermediate plate for mounting between housing parts of a fluid-operated control unit, in particular a gear unit, including a central unit that is constructed in the shape of a plate and, on either side of the central unit, a respective sealing system for sealing between the central unit and the housing part opposed thereto, this sealing system including sealing elements which are arranged on the respective side of the central unit and provide sealing around passages, to achieve the best possible seal between the central unit and the respective housing part, it is proposed that the respective sealing system should include as the sealing element at least one layer of an elastomer material that is resilient and is appliable adhesively to stick to the respective housing part.

Abstract: A washer and fastener combination for use in building construction includes a fastener having a cylindrical shaft, with a threaded end defining one end and a head defining another end, and includes a plastic washer. The washer includes a bottom side and an upper side defining a solid outer surface, and an aperture extending through the washer. A cavity is formed in the upper side at the aperture that defines an opening in the upper side, with the opening defined by the cavity being larger than an opening defined by the aperture whereby the cavity includes a seat that is disposed about the aperture and is recessed from the upper side. The fastener further includes one of either a flange or a secondary washer at the head, with the shaft of the fastener configured for insertion into the aperture with the flange or secondary washer recessed within the cavity.

Abstract: The present application provides a seal assembly for a turbine. The seal assembly may include a first metal shim, a second metal shim, and one or more flexible layers positioned between the first metal shim and the second metal shim.

Abstract: The composite seal includes a metal member arranged on a first substrate side and an elastic member arranged on a second device side and capable of elastic deformation. The composite seal having a structure capable of suppressing degradation even with ultraviolet radiation is thus provided.

Abstract: A washer for use in building construction has an outer side having a solid upper surface defined by an upper wall, an underside opposite the outer side, and a perimeter, with an aperture extending from the outer side to the underside. The washer further includes an engagement portion configured to be at least one of a projection member or a receptacle in the outer side and located inward of the perimeter, with the projection member extending upward from the upper surface and the receptacle extending inward from the upper surface. The engagement portion is configured for mating with an adapter of a fastener gun for locating the fastener gun relative to the aperture. The washer can additionally include one or more prong members projecting from the underside and disposed radially inward from the perimeter.

Abstract: A system, comprising a seal segment including a cable fastener. The system also includes a syngas cooler component that includes a cable guide, where the cable guide may route a cable coupled to the cable fastener to enable the cable to pull the seal segment into a mounting position.

Abstract: A method for inhibiting diffusion of gases and/or transmission of photons through elastomeric seals and a diffusion inhibiting elastomeric seal wherein at least a portion of the surface of a diffusion inhibiting elastomeric seal is coated with a compatibly-deformable, malleable metal coating.

Abstract: According to one aspect of the invention, an assembly for preventing fluid flow between turbine components includes a shim and a first woven wire mesh layer that includes a first surface coupled to a first side of the shim and a second surface of the woven wire mesh layer opposite the first surface. The assembly also includes a first outer layer coupled to the second surface of the woven wire mesh layer, where the first outer layer includes a high temperature non-metallic material.

Abstract: In a copper-based sliding material in which a Cu alloy layer contains 5% to 30% by mass of Bi, and the balance consisting of Cu and an unavoidable impurity, Bi is dispersed as particles of a Bi phase in the Cu alloy layer, and the mass ratio of the particles having a particle size of 2 to 50 ?m and a circularity of 0.1 to 0.7 is 30% or more in the entire Bi phase in the Cu alloy layer, so that the particles of the Bi phase are uniformly dispersed in the Cu alloy layer. Therefore, the particles of the Bi phase in the Cu alloy layer are sequentially exposed to a sliding surface as wear of the sliding material progresses while excessive flow-out of molten Bi is prevented, so that improved seizure resistance is achieved.

Abstract: A copper-based sliding material including a steel back metal layer and a Cu alloy layer is provided. The Cu alloy layer contains 0.5 to 15 mass % of Sn, 0.2 to 5 mass % of inorganic compound particles and the balance being Cu and unavoidable impurities. The inorganic compound particles are dispersed in a Cu alloy matrix and have an average size of 1 to 10 ?m. A ratio of a true density of the Cu alloy matrix in relation to that of the inorganic compound particles is 0.6 to 1.4 and a ratio of a thermal expansion coefficient of the Cu alloy matrix in relation to that of the inorganic compound particles is 1.5 to 3.0. An average distance between the inorganic compound particles dispersed in the Cu alloy matrix is 5 to 50 ?m.

Abstract: The present invention provides a cloth seal for use with turbine components. The cloth seal may include a number of cloth layers, a shim positioned between the cloth layers, and an end seal positioned at an end of the cloth layers so as to block a leakage flow path through at least one of the cloth layers.

Abstract: A seal comprising a high temperature silicone adhesive sealant layer; a first non-ceramic layer mounted to the silicone adhesive sealant layer; a first expanded metal layer mounted to the first non-ceramic layer; a first silicone cloth layer mounted to the first expanded metal layer; a metal reinforcement layer mounted to the first silicone cloth layer to provide structural integrity without the use of ceramic materials; a second expanded metal layer mounted to the metal reinforcement layer; a second non-ceramic layer mounted to the second expanded metal layer; a turbine mesh layer mounted to the second non-ceramic layer; a second silicone cloth layer mounted to the turbine mesh layer; a sealing castable applied over the second silicone cloth layer to provide a covering; and, a high temperature bonding adhesive disposed between each layer following the first non-ceramic layer to bind the layers together.

Abstract: A device including a metal substrate and a ceramic substrate including a back-tapered groove separated from each other by a sealed flexible link. The link includes: a metal element including an end connected to the metal substrate and at another end housed in the groove of the ceramic substrate, the metal element being elastically deformable both in the groove along a direction radial to the groove and, in the separation space between the metal substrate and the ceramic substrate along the separation direction, and a joint-forming mass with a greater thermal expansion coefficient than that of the ceramic substrate and adhesively bonded to the end of the metal element housed in the back-tapered groove, the joint fitting with direct contact a portion of the height of convergent sidewalls of the groove.

Abstract: Applicants disclose a gasket for use between a removable workpiece and a base. The gasket has a polyurethane body, is generally tabular, and on one side has a fabric skin attached thereto. On the non-skinned side, the body, typically polyurethane, is sticky to the touch.

Abstract: A metal gasket formed from a suitable iron-nickel chromium alloy includes at least one embossment that exhibits essentially full functional recovery at temperatures exceeding 1000° F. and including in the range of 1100° F. to 1600° F. or more and which is made from sheet material that is work hardened and strengthened by cold rolling, or a combination of cold rolling and precipitation hardening, without any post embossment heat treating that would act to further harden the material. Suitable iron-nickel-chromium alloys include those comprising, by weight, greater than 18% nickel; greater than 14% chrome and 0.1-10% of at least one element selected from the group consisting of Mo, Ti, V, Al, Co, Nb, Ta and Cu, with the balance being substantially Fe, wherein the gasket sheet alloy has a deformed microstructure.

Abstract: A sintered sliding member comprises a back metal (21a) and a ferrous sintered sliding body (20) which is sintering-bonded to the back metal (21a). The ferrous sintered sliding body (20) has martensite phase having a solid soluble carbon concentration of 0.15 to 0.5 wt % and contains carbide in a content of 5 to 50% by volume. The sintered sliding member is excellent in abrasion resistance, seizing resistance and heat crack resistance.

Abstract: A seal part having a base material, a porous coating layer formed by flame spraying a hard material on a seal surface of the base material, and a lubricating film containing one or more types of materials selected from silver, gold, and tin and a gold-cobalt alloy on the porous coating layer. The seal part of the present invention has superior durability and sealability and further a long life and high reliability even when used in a high temperature (for example 400° C. or more, in particular 400 to 600° C.) and high pressure (for example 2 MPa or more) environment.

Abstract: Multi-layer seals are provided that find advantageous use for reducing leakage of gases between adjacent components of electrochemical devices. Multi-layer seals of the invention include a gasket body defining first and second opposing surfaces and a compliant interlayer positioned adjacent each of the first and second surfaces. Also provided are methods for making and using the multi-layer seals, and electrochemical devices including said seals.

Abstract: A power transfer unit that includes a structure, a tube and a seal. The structure defines a boss that projects along an axis. The boss has a first portion, which defines a gripping surface, and a second portion that defines a sealing surface. The tube has an end that is disposed concentrically about at least a portion of the boss. The seal is received between and sealingly engaged against the structure and the tube. The seal includes a seal body with a seal member and a coupling portion. The seal member sealingly engages the sealing surface and the coupling portion frictionally engages the gripping surface.

Abstract: A gasketed collar for reducing EMI emission from a communication module is presented. The gasketed collar includes a conductive metal collar designed to fit at least partway around the communication module, and a gasket. The gasket is electrically conductive and compressible. The gasket fits at least partway around the communication module and overlaps the conductive metal collar. A communication module including such gasketed collar and a method of making such communication module are also presented.

Abstract: The invention relates to a static seal of the type that comprises a support (3). According to the invention, a layer of elastomer is cold-deposited on at least one face of the support and subsequently shaped, with the optional formation of threads or ribs (7), in a heated mould which is also used for curing. The support is characterised in that not all of the surface thereof is covered with the elastomer and the non-covered zones perform a function other than sealing.

Abstract: An assembly for connecting two vertically aligned cooling tower modules is provided. The assembly includes a lower module with a top structural edge and an upper module with a bottom structural edge. The top structural edge of the lower module includes an outer structural component and an inner sealing component. The bottom structural edge of the upper module includes an outer structural component and an inner sealing component. The outer structural component of the lower module has a generally flat surface that supports the bottom generally flat surface of the outer structural component of the top module. The inner sealing component of the top structural edge of the lower module includes a generally flat surface that abuts the inner generally flat surface of the outer structural component of the top structural edge of the lower module.

Abstract: (Problems to be Solved) The present invention is intended to provide a metal gasket material plate with which exfoliation of the coating or blister can be prevented even if it is used in the presence of an electrolyte aqueous solution and which can be manufactured through a process without use of hexavalent chromium in consideration of the environment, etc. (Means for Solving the Problems) The present, invention relates to a metal gasket material plate comprising a metal plate 1 having a rubber layer 4 on one side or both sides thereof through an adhesive layer 3, wherein a rust-resistant pigment is added to both of said adhesive layer 3 and said rubber layer 4.

Abstract: The present invention features a flange to flange dynamic seal and sealing system, particularly suited for use within high temperature, high pressure environments, such as a delayed coking process. The dynamic flange seal and sealing system comprises two primary elements or seals, each of which are capable of independently forming a flange seal between two flanged components or combining to create a flange seal. Specifically, these primary seals are an iconel bellows seal and a bi-material gasket, each of which surround a flange opening along a sealing surface. The flange seal created by the dynamic flange seal and sealing system is capable of being maintained in light of, or rather the sealing system adapts to, any structural or environmental changes within the connected flanges. As such, the flange seal may be a dynamic flange seal or a static flange seal or both.

Abstract: A sealing arrangement, for example between adjacent nozzle guide vane platform segments (2A, 2B) in a gas turbine engine, comprises a seal (12) which extends across a gap (13) between the platform segments (2A, 2B) and engages, at opposite ends, in grooves (8A, 8B). The seal (12) comprises a web element (14) having recesses (20A, 20B) at its opposite edges, which receive sealing elements (16A, 16B). The sealing elements (16A, 16B) may comprise a braided amorphous silica yarn or other filamentary temperature-resistant material.

Abstract: A seal arrangement for reducing the seal gaps within a rotary flow machine, preferably an axial turbomachine, has rotor blades and guide vanes, which are respectively arranged in at least one rotor blade row and guide vane row and have respective blade/vane roots (2,3) which protrude into fastening contours within the rotor blade and guide vane rows. A sealing element (4) of plastically deformable material is provided between at least two adjacent blade/vane roots (2,3) along a rotor blade row or guide vane row or between a blade/vane root (2,3) of a rotor blade or guide vane and a rotary flow machine component directly adjoining the blade/vane root.

Abstract: A metal laminate gasket with a hole to be sealed includes a base metal plate having a first hole corresponding to the hole to be sealed, and a first steel plate laminated on one side of the base metal plate and having a second hole with a diameter greater than that of the first hole. The second hole has an inner surface and is aligned with the first hole when the base metal plate and the first steel plate are laminated. A coating layer is deposited on the first steel plate and has a portion deposited on the inner surface of the second hole.

Abstract: The transferrable EMI gasket assembly utilizes a carrier with a pair of arms, each attached to a back panel by a hinged connection and extending in the same direction to overlie one another. The conductive, deformable gasket material is attached to the carrier and positioned adjacent the back panel. The assembly is collapsed for installation with the back panel overlying one of the arms hinged thereto to present a reduced height. The assembly is placed in the operative position by moving one arm relative to the other to pivot the carrier back panel to a near right angle position with respect to the carrier arms. In the operative position, the gasket material is compressed and deformed against the confronting surfaces to effect the EMI seal while the biasing force of the compressed gasket material, in the preferred embodiment, secures the carrier arms together.

Abstract: The present invention is a gasket comprising a length of rope formed at least substantially by a plurality of interwoven fibrous glass yarns and having at least two ends, and a soft wire mesh termination sleeve placed around and attached to the rope member at the joint that conforms to the shape of the gasket joint.

Abstract: In order to provide a gasket which can be repeatedly used over a temperature range in which a rubber gasket cannot be used, which does not have any risk of damaging a flange, and which can follow the change of the distance between flanges, a gasket is constructed in such a way that two metallic coned disc springs each of which has a circulation opening for a fluid in a central portion and each of which is formed into a seal surface in which an outer peripheral portion with respect to the circulation opening rises having an arc-like curved surface are combined while being oppositely directed and have outer diameter peripheral edge portions which are welded and fixed so that by tightening flanges, repulsive force of the two coned disc springs concentratedly affects the seal surfaces consisting of the arc-like curved surfaces, and a tight fluid seal is formed between the flange surfaces.

Abstract: A metal-to-metal sealing element for a wellhead assembly which includes at least first and second adjacent components and first and second generally annular sealing surfaces that are each formed on a corresponding one of the components. The sealing element comprises an annular base, an annular sealing lip which projects radially toward at least one of the first and second sealing surfaces and which comprises a seal retaining groove, a soft metal sealing insert which is disposed within the seal retaining groove and which in use engages the at least one sealing surface, and an annular intermediate portion which extends between the base and the sealing lip. The intermediate portion presses the sealing insert against the at least one sealing surface in an interference fit relationship.

Abstract: Nut that screws together with pinion gear, and bearing that is arranged on the inner circumferential side of the nut, are provided on the front of a spinning-reel rotor. Pressing member is mounted on the front faces of the nut and bearing, such that it abuts on outer race of bearing. Pressing member is installed so as to be rotatable with respect to spool shaft, which is a rod element. Pressing member is water-repellency treated over all its surfaces, including the face that forms a clearance with spool shaft. The present invention prevents invasion of water droplets into rotatory-component clearances in a water-sealing component assembly composed of a relatively rotatable plurality of components, while sustaining rotational efficiency of the rotatory components.

Abstract: A component having at least one support member with a first connecting portion and at least one part with a second connecting portion is formed by activating the second connecting portion by plasma treatment and then combining the first and second connecting portions and securing their attachment to one another by a heat and pressure treatment.

Abstract: A packing material wherein one or a plurality of hard metal wire and one or a plurality of soft metal wire are tied up or twisted in a bundle to construct a weft material wherein the ratio of the number of the former to the number of the later is 1:1-0.3, the weft material is put in weft knit processing such as plain stitch, rib stitch, pearl stitch, welt stitch, half cardigan, full cardigan, plating stitch and inter-lock stitch, and Brinell hardness of said hard metal wire is 90-240 (Kg/mm2) and Brinell hardness of said soft metal is 40-55 (Kg/mm2).

Abstract: In a gas turbine having a chordal hinge seal between an inner rail of each nozzle segment and an annular axially facing sealing surface of a nozzle support ring, a supplemental seal is disposed between the support ring and inner band of the nozzle segment on a high pressure side of the chordal hinge seal. The supplemental seal includes a pair of sheet metal shims overlaid by a woven metallic cloth supported by a bracket secured to the inner margin of the inner rail. The radially inner end of the cloth seal bears against the annular sealing surface of the nozzle support ring. The shims of the legs of the supplemental seal are slit along their distal margin and staggered circumferentially relative to one another to provide flexibility and effective sealing engagement with the nozzle support ring.

Abstract: In a gas turbine having a chordal hinge seal between an inner rail of each nozzle segment and an annular axially facing sealing surface of a nozzle support ring, a supplemental seal is disposed between the support ring and inner rail of the nozzle segment on a high pressure side of the chordal hinge seal. The supplemental seal includes a pair of sheet metal shims overlaid by a woven metallic cloth supported by a bracket secured to the nozzle support ring. The radially outer end of the cloth seal bears against a back side of the inner rail. The shims of the legs of the supplemental seal are slit along their distal margin and staggered in a circumferential direction relative to one another to provide flexibility and effective sealing engagement with the inner rail.

Abstract: An annular metal-to-metal sealing system, for use in wellhead systems and having many other uses, has a metal member defining an annular internal or external sealing surface for which sealing is intended. An annular seal body composed of high strength metal material is positioned in concentric relation with the annular sealing surface and is sufficient flexible to become spring loaded, typically during assembly, for continuous application of a spring force. The annular seal body defines one or more annular seal retainer grooves each having an annular soft metal sealing insert therein, with a portion thereof exposed for sealing engagement with the annular sealing surface. The spring loaded characteristic of the annular seal body applies constant force to maintain the soft metal seal insert in constantly energized sealing relation with the annular sealing surface and maintains effective sealing even when dimensional changes to the sealing surface occur due to temperature or pressure changes.

Abstract: A gasket (10; 40; 50; 70) comprises a sealing member which forms a closed loop extending around a hole. The sealing member is formed from resilient metal and has a transverse cross section which is generally X-shaped and comprises two arms (12, 14) which project inwardly of the hole, and two arms (16, 18) which project outwardly of the hole. The inwardly projecting arms form a first seal around said hole, and the outwardly projecting arms form a second seal around said hole. Each arm extends from a junction (22) with the remainder of the gasket to a tip (24) of the arm which engages one of the bodies. Each arm has its greatest thickness at said junction (22) and its smallest thickness at a point adjacent to or at said tip (24), the arm continuously reducing in thickness between said junction and said point. The gasket can yield from the tips of the arms inwardly as the pressure on the gasket increases.

Abstract: A spiral-wound gasket includes a plurality of tightly wound metal windings to form a core. The windings each have a Chervon cross-section, wherein V-notched undulations of each winding registers with an adjacent winding at said notches. The edges of the windings are welded to form a pre-assembled integral composite that is installed into a J-shaped outer wrap or cover. Finally, the cover is closed about the core so as to entirely cover and encapsulate the core. In a preferred form, both the core and outer cover are formed of stainless steel materials.

Abstract: A seal assembly includes a cloth seal for sealing a cavity between a first mating body and a second mating body, the seal dividing the cavity into a high pressure region and a low pressure region. The cloth seal has a shim assemblage and a cloth assemblage. A first peripheral portion of the cloth seal may include a portion of the cloth assemblage and/or the shim assemblage which contacts the high pressure region and a second peripheral portion including a portion of the cloth assemblage adapted to contact the low pressure region. Knowing the flow conditions and pressure differential through the seal, the density of the cloth seal may be calibrated to control leakage and the shim and cloth assemblages may be designed to minimize contact loads on a mating body.

Abstract: A seal for hydraulic assemblies operating at high temperatures having adaptations (19, 20, 49, 50) for low pressures sealing and configured to move across the gap to be sealed at higher pressures with an angled base on a slope (23, 44) or a cup shape (73, 74) nested into a groove (72). The seal at the point of the gap being an elastic, metallic material.

Abstract: An electromagnetic interference (EMI) shielding gasket. The gasket is formed as having a resilient core member of an indefinite length which is sheathed in an electrically conductive fiber mesh member. A thermoplastic member is incorporated within the fiber mesh member for consolidating at least a portion of the fiber mesh member. The consolidation is effective to maintain the integrity of the fiber mesh member at an end of the gasket when the gasket is terminated to a determinable length.

Abstract: A sealing ring is provided that can be used at low load conditions. The sealing ring basically has an annular center section, a first annular end section and second annular end section. The center section has a first end, a second end and a curved bight portion located between the first and second ends of the center section. The first annular end section extends from the first end of the center section. The first end section has a first axially extending leg portion and a first sealing surface facing in a first direction substantially parallel to a main central axis of the sealing ring. The second annular end section extends from the second end of the center section. The second end section has a second axially extending leg portion and a second sealing surface facing in a second direction substantially parallel to the main central axis of the sealing ring. In certain applications, the sealing ring can be provided with a coating of soft material or a second ply of soft material.

Abstract: A high temperature, gas-tight seal is formed by utilizing one or more compliant metallic toroidal ring sealing elements, where the applied pressure serves to activate the seal, thus improving the quality of the seal. The compliant nature of the sealing element compensates for differences in thermal expansion between the materials to be sealed, and is particularly useful in sealing a metallic member and a ceramic tube art elevated temperatures. The performance of the seal may be improved by coating the sealing element with a soft or flowable coating such as silver or gold and/or by backing the sealing element with a bed of fine powder. The material of the sealing element is chosen such that the element responds to stress elastically, even at elevated temperatures, permitting the seal to operate through multiple thermal cycles.

Abstract: A knitted metalized yarn gasket fashioned from a core, a first tubular layer formed from a hot melt yarn around the core, and a second tubular structure knitted from a conductive yarn and disposed over at least a portion of the first tubular layer and core assembly. The hot melt yarn forming the first tubular layer adheres the second tubular structure to the core such that fraying of the knit gasket is substantially prevented.

Abstract: A mounting system includes a wall having at least one hole formed therein, and a track having at least one barb extending from a first surface of the track, the track having a second surface on an opposite side of the track from the first surface. The at least one barb is wider than the at least one hole and is sufficiently resiliently compressible to be passed through the at least one hole in one direction and expand to prevent removal of the barb in a second direction, thereby securing the track relative to the wall.