Abstract: A device for a tight connection between a first housing (1) having a wall (3), an opening (4), a flange (5) and a door (6), and a second housing (2) having a wall (7), an opening (8), a flange (9) and a door (10). The flanges are complementary, and elements are used to displace the door (6). Elements are used to hold the two doors against each other, and the housings communicate between each other via a communication space (13). There is an inner annular critical line on the door (6) and an outer annular critical line of risk of contamination on the flange (9). The device includes elements (25 and/or 26) that are structurally integrated into the door (6) and/or the flange (9) and can form a separation between the communication space and the inner annular critical line and/or the outer annular critical line, when the doors are open.

Abstract: A seal assembly is disclosed that can be used to seal a bearing case in a turbine. The seal assembly has an annular seal plate seated within a groove defined in the bearing case and radially-offset from the turbine shaft. A seal retainer is mounted on the shaft axially-offset from the annular seal plate and defines a channel therein for receiving and seating a seal therein. The seal has a flexible lip that extends from the body of the seal and engages either the inside surface of the bearing case or a counterface of the annular seal plate, thereby preventing or substantially restricting the influx of contaminants into the bearing case.

Abstract: A method and system for sealing a gap between a bucket dovetail and a rotor is provided. The dovetail seal includes a first end portion extending from a first extent of the first end portion a predetermined distance along a length of the dovetail seal, a second end portion extending from a first extent of the second end portion a predetermined distance along a length of the dovetail seal towards the first end portion, and a body extending between the first and second end portions. The body includes a U-shaped bend complementary to a sealing groove in a dovetail of a turbine blade. The first end portion includes a converging flared cross-section from the first extent of the first end portion toward the second end portion and the second end portion includes a converging flared cross-section from the first extent of the second end portion toward the first end portion.

Abstract: A workpiece holder for fluid processing a workpiece including a transportable frame, a flexible member connected to the frame and defining at least one retaining feature, and a ring comprising at least one engagement feature engageable with the at least one retaining feature of the flexible member, wherein the flexible member is flexed to provide a force to the at least one engagement feature to cause the ring to form a barrier to fluid entry with the workpiece.

Abstract: An example method of sealing an interface within a gas turbine engine includes holding a sealing ring arrangement relative to a turbine nozzle using a flange extending from a combustor liner. The method further includes urging the sealing ring arrangement toward a sealed relationship with the turbine nozzle.

Abstract: According to one aspect of the invention, an assembly to be placed between adjacent turbomachinery components is provided, where the assembly includes a first shim comprising a U-shaped cross-section geometry, wherein the first shim is configured to form a seal between adjacent components. The assembly also includes an insert placed within a recess of the U-shaped cross-section geometry of the first shim and a plurality of staggered couplings between the insert and the first shim.

Abstract: Configurations and methods of reducing oxygen infiltration into an oxygen-sensitive process environment of a plant are presented in which carbon dioxide is isolated from a process stream within the plant, and in which a small portion of the isolated carbon dioxide is used in the plant as a transport gas or a seal gas for devices that are known to exhibit air in-leaking.

Abstract: A fluid seal assembly (the assembly) of the present invention is disposed between an outer surface, i.e. engine block or any other part that requires application of the assembly and a rotatable member, such as, for example a shaft, wherein the assembly circumscribes the shaft and lubricated the shaft and the same rotates around the axis. The assembly includes a primary seal and a wear sleeve. The primary seal includes a casing and a seal element that contacts a sealing surface on the wear sleeve. The casing includes an outer diameter and an outer seal formed onto the outer diameter. The wear sleeve has a cylindrical portion defining an inner diameter and an inner seal formed into the inner diameter of the wear sleeve. The outer and inner seals of the present invention provide improved retention in metal bores during thermal expansion and eliminate spring back effect of the assembly after installation.

Abstract: According to one embodiment, an inkjet device includes: an inkjet head; an armor section configured to surround the periphery of the inkjet head; a first gap formed over the entire periphery in the peripheral direction in a plurality of the armor sections; and a seal body for forming a surface tension seal by fluid in a second gap arranged in the first gap to form a gap narrower than the first gap.

Abstract: A gap molding and associated methods reduce accumulation of undesirable material in a gap. A gap molding comprises a top portion configured to at least partially bridge a gap, and a retention portion configured to frictionally engage with at least one side of the gap. The gap molding may be configured with a taper in order to smoothly transition from the surfaces on either side of the gap. The gap molding may comprise silicone or other suitable material. The gap molding may desirably be placed between appliances, countertops, and/or the like in order to provide improved aesthetics and/or reduce accumulation of food waste and other debris.

Abstract: The present invention relates to a system comprising magnetic nanoparticles of a metal oxide and a polymer, which in turn contains monomers with different functional groups. This system can be solid (nanocomposite) or liquid (ferrofluid). The present invention also relates to a process for obtaining the system, as well as its use, mainly in biotechnological, veterinary and medical applications, such as, for example, for the diagnosis and treatment of human diseases.

Abstract: An application for an arced sealing tape has a bottom, an inner wall and an outer wall. The surfaces of the inner wall and the outer wall that are closest to a center point of the arc have an adhesive. Likewise, a bottom surface of the bottom also has an adhesive.

Abstract: An application for an arced sealing tape has a bottom, an inner wall and an outer wall. The outer wall has an outward flare extending outwardly from the center. The surfaces of the inner wall and the outer wall that are closest to a center point of the arc have an adhesive and a bottom surface of the bottom also has an adhesive.

Abstract: The present invention relates to a sheet for mounting a workpiece and a method for making the same. The method includes the steps of: (a) providing a sheet body having a top surface, a bottom surface, at least one side surface and a plurality of pores, wherein some of the pores open at the side surface; and (b) sealing or narrowing the pores that open at the side surface. Since the pores that open at the side surface are sealed or narrowed, the slurry is prevented from entering into the interior of the sheet body. Therefore, the infiltration distance reaches a predetermined value slowly, thereby increasing the effective life of the sheet.

Abstract: A gate valve has a body, the body having a cavity and a flow passage intersecting the cavity. A seat ring is mounted to the body at the intersection of the flow passage and the cavity, the seat ring having an engaging face. A gate in the cavity has an engaging face that slidingly engages the face of the seat ring while being moved between open and closed positions. A seat sealing element is located in a cavity between seat rings and a counterbore formed in the flow passage and body of the valve. The sealing element blocks flow from the flow path to the interior of the valve. The sealing element also prevents debris from entering the counterbore-to-seat interface to improve sealing integrity. The sealing element has an axial spring property that enhances contact between the seat and gate and accounts for thermal expansion of the valve internals.

Abstract: A side seal for sealing the side edges of adjacent combustors of a turbine engine include extended ends. The extended ends of the side seal abut and seal against inner and outer circumferential seals to prevent leakage of combustion gases.

Abstract: A spirally wound strip (300) is thicker in the middle and is curved on both sides. Short flats (306) are formed at each side by surfaces that converge towards each other. Soft sealant material (316) extends over the flats (306).

Abstract: The present invention relates generally to a composite plate produced by an alternating stack of (n+1) flexible graphite foils and (n) perforated metal reinforcing foils with spurs (where n?2). The thicknesses of the flexible graphite foils used are preferably such that any 2 mm slice of thickness of the composite plate comprises at least 3 layers of flexible graphite, and has a graphite density per unit area of at least 2.34 kg/m2. For each perforated metal reinforcing foil, the spurs present on the foil generally have a height in relation to the surface of that foil that does not exceed about 1.3 times the thickness of the thinnest of the flexible graphite layers to which it is attached. A composite plate of the present invention enables the manufacture of gaskets that resist temperatures up to 550° C. under continuous service.

Abstract: The present invention relates to compositions and methods for creating insulating seals for use in a variety of applications, and to seals created by such compositions and methods. In particular, the present invention provides novel compositions and methods for creating insulating edge seals that provide multiple contact surfaces. The present invention further provides seals that facilitate attachment of flexible covering materials (such as fabrics, plastics, metals, etc.) to hard surfaces (such as plastics, metals, woods, etc.). The present invention is particularly useful for creating insulating edge seals that provide a means of attachment for removable covers for vehicles (such as tops for automobiles, watercraft, and aircraft), structures, and objects.

Abstract: A pressure vessel includes a pump having a passage that extends between an inlet and an outlet. A duct at the pump outlet includes at least one dimension that is adjustable to facilitate forming a dynamic seal that limits backflow of gas through the passage.

Abstract: A threaded joint includes a flange, a nut and a flexible seal. The flange, the nut and the flexible seal have threads respective inner surfaces, the threads having shapes complementary to threads on an outer surface of a stem. The flange is configured to allow the stem to move by rotation through the flange. The nut and the flexible seal are configured to move by rotation relative to the stem. The flange has a counter bore and the nut has a groove. The flexible seal has a first portion configured to fill the counter bore in the flange, and a second portion configured to fill the groove of the nut.

Abstract: A wellhead seal assembly that forms a metal-to-metal seal between inner and outer wellhead members. A metal seal ring has inner and outer legs that are threaded to each other and separated by a slot and provide bi-directional sealing. The threaded connection provides a pathway for annular pressure into the slot. The inner and outer legs have inner and outer walls, respectively Inner and outer legs have a soft metal inlay on their interior surfaces. Wickers may be located on the outer surface of the inner wellhead member and on the inner surface of the outer wellhead member. An energizing ring is moved into the slot to force the outer and inner walls of the seal into sealing engagement with the inner and outer wellhead members. The soft metal inlays deform onto the energizing ring. If present, wickers on the wellhead members embed into the walls of the seal ring.

Abstract: A t-joint assembly includes a gasket having first and second ends, and a substantially elongated body having a profile. The first end includes an enlarged tapered section having a distal tip and a force-transfer surface disposed substantially perpendicular to the body. The assembly also includes a first component having a channel with a profile and a reaction surface configured to respectively complement the profile and accept the force-transfer surface of the gasket. The first component also has a first sealing surface arranged substantially parallel to the reaction surface, and a second sealing surface arranged substantially perpendicular to the reaction surface. The t-joint assembly additionally includes second and third components, each having a sealing surface. Inserting the gasket into the channel and assembling the three components compresses the gasket against the channel, and the tip of the gasket against the reaction surface, to thereby seal the t-joint.

Abstract: A wellhead seal assembly that forms a metal-to-metal seal between inner and outer wellhead members and a face seal between inner wellhead members. The face seal is created by two opposing sealing surfaces on inner wellhead members that sealingly engage each other. The inner wellhead members that interact to form a face seal may be a casing hanger, bridging hanger, or lockdown hanger. A wicker profile formed on one of the opposing seal surfaces bites into the opposing seal surface in response to a load. The face seal is designed such that well pressure enhances the face seal.

Abstract: The invention relates to a method for sealing a structural joint using a sealing element (1) composed of an at least partially open-cell, elastically resilient foam, and to a sealing element. The sealing element is able to expand from a compressed state to a partially or a completely expanded state due to elastic resilience of the foam, and is provided with an expansion-influencing medium. It is proposed that the sealing element (1) is held in a compressed state by the medium, and the expansion of the sealing element is enabled by separate action of heat on the medium.

Abstract: The present invention relates to a form of lap joint for forming a water-tight joint between sheet materials comprising a sealant strip between 2 sheets of material, the sheets of material being held about the sealant strip by means of a plurality of fasteners. The sealant strip comprises a pliable sealant material in which is embedded, along the length of the strip, one or more elastomeric cords. The invention provides an improved form of construction such that sealant in a non-hardened form, such as before setting or when of a non-setting form is not extruded from a joint overtime and thus the integrity of the joint is maintained.

Abstract: In one embodiment, a first substrate including first and second array regions are prepared. The first and second array regions respectively include first and second active areas. A peripheral seal material having an air intake opening is arranged outside the first and second array regions. A second substrate is arranged on the surface of the first substrate in which the first and second seal materials and peripheral seal material are formed in a vacuum chamber under vacuum state. Atmosphere is introduced into the vacuum chamber and a space between the first and second seal materials from the air intake opening. Then, a pressure is applied to the first and second substrates by pressure difference between the atmospheric pressure of circumference which surrounds the first substrate and second substrate, and the atmospheric pressure of the space between the first substrate and second substrate.

Abstract: A holding sealing material includes a mat including an inorganic fibrous material. In a plan view, the mat has a basic quadrangular shape consisting of long sides extending in a longitudinal direction and short sides substantially perpendicular to the long sides. The mat has a recessed portion at one of the short sides and a projected portion at another of the short sides, whereby the projected and recessed portions should fit to each other when the mat is rolled around a periphery of a member to be wrapped. In a cross-sectional view, the projected portion is a quadrangle and the recessed portion is a gap between two quadrangles. At least one corner portion of the projected portion is cut out on a side of the member to be wrapped or another corner portion of the quadrangle of the projected or recessed portions is cut out.

Abstract: A micro-abrasive blasting device comprises a mixing chamber, a delivery conduit extending from external the mixing chamber to the mixing chamber and a discharge conduit extending from the mixing chamber. Embodiments having delivery and discharge conduits extending from the same, or from opposite ends of the mixing chamber are disclosed. Abrasive material may selectively be sealed in the chamber by positioning the discharge conduit to abut the inlet port. Other sealing techniques are disclosed, such as capping or plugging the delivery and discharge conduits. The chamber may be spherical to deliver consistent powder perturbation at all mixing chamber orientations. Methods of using the device are disclosed. Methods of making the device by blow molding are disclosed.

Abstract: A method for sealing a membrane module by introducing a seal or a sealing mass between a head plate holding a tube bundle and a mounting ring holding the head plate. Alternatively, a sealing mass containing quartz sand is proposed for sealing cracks in the head plate.

Abstract: A process chamber that provides an interior surface and an exterior surface is confined within a containment chamber. Secured to the containment chamber is a collar that communicates with the process chamber. A seal formed between the process chamber and the collar, includes at least an adjustable backing ring encircling the exterior surface of the process chamber, a preload ring secured to the collar, and a sealing structure encircling the process chamber and positioned between the adjustable backing ring and the preload ring. The adjustable backing ring is adjustably secured a predetermined distance from the preload ring, based on a perimeter dimension of the process chamber, to form the seal between the process chamber and the collar.

Abstract: A method of fluid sealing a workpiece is provided. The method includes placing a workpiece on a ring, engaging at least one engagement feature of the ring with at least one retaining feature defined by the member and flexing the member to provide a force to the at least one engagement feature to cause the ring to form a barrier to fluid entry with the workpiece.

Abstract: A sealing system for an outlet of a plastic-lined cylinder has a plastic liner outlet extending into a bore of a boss. An insert is engageable with the bore, forming a primary seal between the insert and portion of the liner outlet. Further, a tapered compression surface of the insert engages a tapered bore portion of the liner outlet adjacent the primary seal for compressing the liner outlet and closing any annular assembly clearance at the primary seal for obviating opportunity for seal extrusion under pressure. An axial position in the boss, and dimensional integrity, of the liner outlet is maintained by engaging an annular distal end of the liner outlet in the bore by a stop. The stop can be integral with the boss. Reverse extrusion of the primary seal due to trapped gas and rapid decompression of the cylinder can be defeated by providing a leak path.

Abstract: In a seal structure sealing a housing for passing a signal line therethrough, the seal structure includes: a first case; a second case joined to the first case to define the housing, and provided with a recess portion through which the signal line passes at a joining surface joining the first case; a first seal member arranged on a bottom surface of the recess portion, and mounting the signal line; a second seal member including a gelatinous composition arranged to cover the signal line arranged on the first seal member; and a third seal member arranged between the first and second cases, and pushing the second case.

Abstract: A sealing system for an outlet of a plastic-lined cylinder has a plastic liner outlet extending into a bore of a boss. An insert is engageable with the bore, forming a primary seal between the insert and portion of the liner outlet. A tapered compression surface of the insert engages a tapered bore portion of the liner outlet adjacent the primary seal forming a tapered interface and a secondary seal. An axial position in the boss, and dimensional integrity, of the liner outlet is maintained by engaging an annular distal end of the liner outlet in the bore by a stop. The stop can be formed on the insert.

Abstract: A container adapted for dispensing a product is provided. The container includes an outer casing body for receiving a dispensing tray. The dispensing tray has an internal storage compartment for storage of a plurality of units of a product to be dispensed, and includes a cover portion defining at least one dispensing aperture through which a stored unit of product is accessible when the outer casing body is in a dispensing position. A sealing member is engaged with one of the outer casing body and the dispensing tray, and is configured to interact with the other of the outer casing body and the dispensing tray to form a seal about an outer peripheral portion of the dispensing tray when the outer casing body is in a closed and locked position. The container includes a locking mechanism that releasably locks the outer casing body in the closed and locked position.

Abstract: A bridging seal comprising a stack of two or more layers of elastomer, the bridging seal having a first edge and a second edge opposite the first edge, adjacent layers being attached to each other at the first and second edges, wherein adjacent layers of the bridging seal have opposing surfaces and a substantial portion of the opposing surfaces is unbonded. The bridging seal may be used to seal a gap between two aerodynamic surfaces on an aircraft.

Abstract: The present invention relates generally to a composite plate produced by an alternating stack of (n+1) flexible graphite foils and (n) perforated metal reinforcing foils with spurs (where n?2). The thicknesses of the flexible graphite foils used are preferably such that any 2 mm slice of thickness of the composite plate comprises at least 3 layers of flexible graphite, and has a graphite density per unit area of at least 2.34 kg/m2. For each perforated metal reinforcing foil, the spurs present on the foil generally have a height in relation to the surface of that foil that does not exceed about 1.3 times the thickness of the thinnest of the flexible graphite layers to which it is attached. A composite plate of the present invention enables the manufacture of gaskets that resist temperatures up to 550° C. under continuous service.

Abstract: A sealing member is disclosed for use with a wick of a diffuser, or the like. The sealing member seals a vessel containing a liquid in a fluid chamber. The sealing member may be composed of a malleable material that may also be resistant to a liquid fragrance contained in the vessel. The sealing member may include a body, flaps and an opening for receiving a wick therethrough. The sealing member may form a persistent seal when a wick is inserted therethrough, while at the same time allowing venting to the fluid chamber.

Abstract: According to one aspect, a valve is provided for an inflatable device that is shaped and configured to support at least a portion of a user where the valve includes a base including a first region configured to seal to a fluid impermeable wall of a bladder of the inflatable device, a cap including a rim, and a seal. According to some embodiments, the base includes a second region that defines an orifice for exhausting fluid from an interior of the inflatable device, the second region configured to provide a sealing surface. Further, the rim can include a generally circular peripheral region including at least one rib located about an underside of the peripheral region and a cavity defined in part by at least one wall located radially inward of the rib. Still further, the seal can include a first end region secured to the cap within the cavity between the at least one wall and the at least one rib and a second end region configured to freely move with the at least one first end region secured to the cap.

Abstract: A gasket for sealing two mating surfaces is described. The gasket has: a) an outer portion comprising a core interposed between sealing layers, the outer portion defining a first aperture, the core and/or the sealing layers defining an inner edge of the outer portion, the said inner edge immediately surrounding the first aperture; b) an inner portion comprising deformable material defining a second aperture therein, the inner portion having an inner edge defining the second aperture and an outer region designed to be secured to the outer portion so that the inner portion is held securely by the outer portion, the thickness of the inner portion being greater than the thickness of the outer portion so that in use the inner portion deforms to a greater extent than the outer portion. In some embodiments, the deformable inner portion includes a chemical treatment agent. The invention extends to methods of using the gaskets, uses for sealing corroded joints and methods of production of the gasket.

Abstract: The gasket of the present invention is mainly comprised of a pressure-sensitive adhesive sheet containing a non-halogenated flame retardant, and at least one surface thereof is a pressure-sensitive adhesive face of the pressure-sensitive adhesive sheet containing a non-halogenated flame retardant. According to the present invention, a highly flame retardant gasket having practically sufficient tight-sealing property, which does not produce a toxic halogen gas during combustion can be realized. In addition, a highly flame retardant gasket having practically sufficient tight-sealing property, which does not produce a toxic halogen gas during combustion, and does not cause corrosion and discoloration of a metal member to be an adherend can be realized.

Abstract: An electronic device is provided. The electronic device has a gland-side housing member formed by a hard resin. The gland-side housing member has a trench-like gland forming portion along and close to an outer fringe of the gland-side housing member. The electronic device has a gland-opposite housing member having a gland-opposite portion facing the gland forming portion. The electronic device has a packing gland component formed by a soft resin. The packing gland component has a packing gland portion formed and integrated with the gland-side housing member in the gland forming portion. The packing gland component has a gate portion formed on the inside of the packing gland portion as the soft resin flows into the gland forming portion. The packing gland component has an overflow portion formed by the soft resin which overflows the gland forming portion.

Abstract: A thin flange for insertion between two ultra-high vacuum flanges includes opposing, parallel sealing surfaces. The sealing surfaces can be surrounded by mounting surfaces having mounting holes therein alignable with holes in the flanges. Forces applied by bolts inserted through the aligned holes are distributed by the flanges so that the thin flange is subjected only to symmetric, compressive forces. Since no deforming forces are applied to the thin flange, the thickness of the thin flange can be less than previously attained, and can be less than 15% of its diameter, or even less than 6.5%. The thickness of the thin flange can be less than 0.28 inches or less than 0.16 inches. Knife edges on the sealing surfaces pressed against soft metal gaskets can form vacuum seals. The thin flange can include a feature such as an inward-facing mounting groove, a threaded mounting bore, and/or an electrical feed-through.

Abstract: A microvalve for controlling fluid flows, and a sealing device for sealing cavities in a microfluidic system, particularly in a lab-on-a-chip system, and a method for the production thereof. A sealing surface of a valve body, or a sealing element, respectively, rests on a sealing surface of a substrate and is pressed against the sealing surface of the substrate in a fluid-tight manner by means of a clamping element. The clamping element and/or the valve body, or the sealing element, respectively, are at least partially elastic.

Abstract: A seal arrangement includes a plurality of seal elements arranged in series. At least one seal element has a predetermined rated pressure and includes a relief arrangement permitting relief of pressure across the seal element at a predetermined level lower than said rated pressure.

Abstract: A downhole tool includes a first portion having a first metal protrusion configured to seal against a first metal surface and a second portion having a second metal protrusion configured to seal against a second metal surface. A ratcheting device includes a first element having a plurality of grooves, and a second element having at least two sets of teeth, wherein one of the at least two sets of teeth engages the plurality of grooves. Additionally, a method of forming a downhole seal includes disposing in a wellbore a downhole tool including an inner tubular, a lock ring, a lower ring, an upper ring, an insert ring, and a deformable element. The method further includes moving a wedge sleeve axially downward with respect to the downhole tool such that the wedge sleeve engages the deformable ring and forces a first metal protrusion on the deformable element into contact with an outer tubular.

Abstract: A finishing element 1 comprises a relatively form-retaining core body 2 connected liquid-tightly to a relatively flexible rim body 4, which here extends laterally around the core body in at least substantially liquid-tight manner. The core body 2 comprises a cavity for the purpose of receiving liquid-tightly therein an at least substantially shank-like free outer end 10 of a construction element. A finishing element 1 is thus provided with which the outer end of a construction element can be finished in reliably liquid-tight manner.

Abstract: A radial seal is described for use in a filtration system having annular elements. The rings or annuli fit in a groove in an outer surface of a seal plate. Each annulus has an outer diameter larger than the inner diameter of a cylindrical housing of the filtration system. A gap in the annulus has a width selected to enable the annular element to deform sufficiently to permit insertion of the at least one annulus into the cylindrical housing. Two or more annuli can be configured such that the gaps of the annuli are misaligned when both annuli are installed in the groove, thereby minimizing leakage in operation. A registration system includes a registration element that cooperates with a registration element of the other annulus to ensure misalignment of the gaps of the pair of annuli.

Abstract: The present invention relates to the process for preparing hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art.