Abstract: A packing assembly for a hydraulic apparatus, for example a faucet comprising first and second members in fluid communication with each other, the second member having a recessed seat adapted to receive a substantially cylindrical core member, the core member having outwardly extending flanges from the top and bottom ends thereof, an elastomeric packing insert set into the recessed seat and secured about the core member, such that the core member provides reinforcement to the packing insert, and a spring received within the recessed seat of the second member, such that the spring maintains the core member and the packing insert in sealing contact with the first member.

Abstract: In the case of a housing seal (3, 3′) for cable through-duct apertures that can be inserted into receptacles (2, 2′) for the cable through-duct apertures, whereby housing seal (3, 3′) has at least two sealing areas (7, 7′or 9, 9′) with different sealing contours and can be inserted into receptacles (2, 2′) in different directions as desired, a low overall height and the use of the housing seal with the same shape for the inlet and outlet apertures of a housing are possible even when asymmetrically profiled cables are used if two sealing areas (7, 7′or 9, 9′) are provided on adjacent sides of housing seal (3, 3′), whereby one side points in the direction of the cable through-duct.

Abstract: A roller (10) incorporating a heat pipe cavity (12) has a port (25) through which a medium (29) is flowed and a vacuum is drawn. The port (25) is sealed by a plug (20) which is lodged in a hole (14) by advance of a screw (16) against the plug (20) to form a metal-to-metal seal that will withstand pressures in the heat pipe cavity (12). A body of grease (21) is one of several ways disclosed for centering the plug (20) in the hole (14). The screw (20) can be advanced with a conventional Allen wrench or a special tool (35) having a driver head (22) on a shaft (23) that extends through a casing (24) for conveying medium or drawing a vacuum. The screw (16) has vents (28) to allow a vacuum to be drawn as the port (25) is sealed. A method of sealing is also disclosed.

Abstract: A gasket having centering features. The gasket comprises a centering portion for which three embodiments are described. The centering portion is switchable between a flush configuration, in which the gasket may be employed between the flange faces of two pipe flanges as typical, and a centering configuration, in which the gasket provides a means for centering the gasket in the pipe joint. In a first embodiment, a normally flush centering portion comprises a flap for centering the gasket, in a second embodiment, the centering portion comprises a collapsible protuberance for centering the gasket, in a third embodiment, the gasket comprises a non-collapsible protuberance for centering the gasket which is physically removable, and in a fourth embodiment the centering portion comprises an annular ring adapted for mating with an annular relief formed in a corresponding one of the flange faces.

Abstract: Flat gasket ring, in particular for producing a flange connection between moldings, the flat gasket ring having, along its outer circumferential line, lip structures which are intended for accommodating the gasket ring in a positively locking manner in relation to moldings.

Abstract: A cable sleeve consisting of two seal members with adjustable cable entry openings and an integrated cable clamping apparatus. The adjusting in the cable entry opening occurs by removal of concentric adjusting rings, wherein the number of adjusting rings removed and the strength of the sealing wrapper applied are determined with the aid of a template.

Abstract: A flange protector for protecting opposing flanges of a pipe joint from corrosion and leakage. The flange protector is comprised of a transparent, flexible, elastomeric band for wrapping around the periphery of the opposing pipe flanges of the pipe joint. The band has metal straps that support a fastener for pulling the ends of the band together tightly around the pipe flanges and lubrication inserts for injecting a lubricant through the transparent band to the surfaces of the flanges. The transparent band is sufficiently clear so as to allow visualization of the amount of the lubricant present at the flanged pipe joint and the presence of any corrosion of the flange surfaces without the removal of the flange protector from the flanged pipe joint.

Abstract: An article includes an object and a sealing member. The object includes a cavity formed therein. The sealing member includes sealant and a carrier to which the sealant is attached. At least one of the carrier and the object includes attachment means whereby the carrier is configured to be attached to the object such that at least a portion of the sealant is retained within the cavity.

Abstract: A slip joint for an engine exhaust system having a male and female manifold section which utilizes a sleeve assembly that is disposed about one of the manifold sections. The sleeve assembly has a positioning portion and locating portion. The positioning portion is in sealing engagement with one of the manifold sections and the locating portion is in resiliently sealing engagement with the other manifold section. The principle use is for exhaust manifold connections, however any joint that has thermal expansion or encounters vibrational loads will benefit from this invention. For example, exhaust gas recirculation systems may have passages connected with this invention.

Abstract: The invention relates to a sealing device constituted by a round seal (12), that is to say a seal having a non-planar outer surface, and by a flat seal (3) which are contiguous, characterised in that, on either side of the round seal (12) and in the area of the flat seal (3), projects a planar lug (5a, 10a; 5b, 10b) moulded in a single piece with the seal body (12), each of the said two lugs (5a, 10a; 5b, 10b) fitting into a cut out portion of a matching shape provided in the flat seal (3), so as to locate the interface between the round seal (12) and the flat seal (3) entirely in the plane of the latter.

Abstract: A double lobed seal comprises first and second annular seals, each having a radially inwardly projecting annular lobe that engages against a sealing surface of a valve element in a valve housing to seal the valve element in its closed position. With increasing fluid pressure exerted on the dual lobe seal, the upstream seal is compressed and moves radially away from the valve element sealing surface. This movement allows the fluid under pressure to enter a void between the two annular seals. The increasing fluid pressure in the void exerts a compressive force on the downstream annular seal that causes its annular lobe to move radially inwardly increasing the force of its sealing engagement with the disk valve sealing surface. In this manner, the dual lobe seal increases its sealing effectiveness when subjected to increasing fluid pressures.

Abstract: A sealing device comprises two substantially conical or cylindrical sealing surfaces (6, 8) which are axially introducable one into the other to a substantially concentric sealing position in which the sealing surfaces define between themselves an annular sealing space (12) and further comprising a sealing element (10) consisting of elastic material, the sealing element being compressed in the sealing space between the sealing surfaces and being at least in axial direction bound to a first sealing surface of said sealing surfaces. The second sealing surface (8) is formed with at least one projection (16) and the sealing element forms in cooperation with said first sealing surface at least one pair of portions (20, 22) positioned adjacent each other in the axial direction and presenting different compression resistances under the influence of the projection of the second sealing surface.

Abstract: An improved seal allows a fuel nozzle to be securely fastened to an aircraft refueling adaptor and the seal does not allow fuel to leak or spill. Significantly, the seal is simple to install and remove because the fuel nozzle does not have to be disassembled or removed from the fuel hose and the seal does not have to be bonded to the seal support. The seal is securely attached to the fuel nozzle without the use of adhesives because the seal is much stiffer than conventional seals, and the seal is mechanically retained in a deep annular groove in the seal support structure. The improved seal includes a body with a first leg, a second leg, a cavity and a projection which is attached to the first leg and it extends at least halfway across the width of the cavity. Desirably, the projection extends about two-thirds of the way across the width of the cavity.

Abstract: The expandable band is used to secure a sealing element within a generally cylindrical structure, such as a pipe or manhole, or other round hole. The expandable band includes a band body having a first band end portion and a second band end portion. A plurality of slots are disposed in the first band end portion, and a locking member extends from the second band end portion. The locking member includes a tab for extending through the second band end portion and into one of the plurality of slots to lock the expandable band at the desired diameter. An end section of the second band end portion extends beyond the tab of the locking member to ease the transition between the overlapping first and second band end portions. When the band is expanded, the tab is disengaged from the slots and slides over the slots, allowing the first and second band end portions to move relative to one another. At the desired diameter, the tab engages one of the slots to lock the band at the desired diameter.

Abstract: The sealing assembly for a port of a valve or the like is disclosed. In detail, the sealing assembly includes the port having a circular shaped end with a circular shaped knife-edge thereon. The sealing assembly further includes a hollow cap having a closed first end with an aperture therethrough and an open second end. The cap further includes internal threads adapted to mate with the external threads of the port. A gasket is mounted within the cap having flat first and second principle sides and made of a deformable metal, the first principle side of the gasket for mounting against the circular shaped knife edge of the port. A plunger having a circular shaped disc portion is adapted to fit within the hollow cap and is engagable with the first principle surface of the gasket and includes a shaft portion extending out of the aperture. The cap and shaft of the plunger include external wrenching flats.

Abstract: A sealing device (20) includes a layer of sealant (22) for sealing an internal surface (30) of a hollow member (34). The internal surface is nonparallel to the open end of the hollow member, and has an aperture pattern (44) for receiving at least one substrate (40) extending from a support surface across the hollow member. The layer of sealant is disposed adjacent the internal surface and supported by a backing (24) having an aperture pattern corresponding to the aperture pattern of the internal surface. The backing is spaced from the support surface and is movably supported inside the hollow member. The layer of sealant is adhered to the front surface of the backing to form a self-supporting article that can be easily positioned into the hollow member. One or more substrates can be inserted through the support surface across the hollow member, through the apertures in the backing and the layer of sealant, and through the apertures on the internal surface.

Abstract: A process diaphragm seal includes a diaphragm seal body having a seal body ring portion surrounding a cavity and a diaphragm having a diaphragm ring portion. The diaphragm ring portion includes a diaphragm ring outer portion that corresponds to a seal body ring outer portion of the seal body ring portion and a diaphragm ring inner portion that corresponds to a seal body ring inner portion of the seal body ring portion. A first weld of the diaphragm ring outer portion to the seal body ring outer portion forms a closed path around the seal body ring portion. A second weld of the diaphragm ring inner portion to the seal body ring inner portion forms a closed path around the cavity. Between the first and second welds a diaphragm ring back surface is in substantially continuous contact with the seal body ring portion.

Abstract: A seal joint is for an arrangement for separating a gas and liquid mixture having a vessel with an inlet for entry of the gas and liquid mixture and an outlet for exit of a separated gas, and a centrifugal separation cyclone in the vessel for centrifugally separating the gas from the mixture. The joint requires the vessel to have an internal vessel flange defining a flange opening. An inlet tube extends into the flange opening. A first retaining ring having a first outer ring which engages the flange, also has a first inner ring portion extending around the inlet tube in the flange opening. A second retaining ring has a second outer ring engaged with the flange and a second inner ring extending around the inlet tube in the flange opening. An O-ring is engaged around the inlet tube and between the first and second inner rings and fastening bolts are use for fastening the first and second outer rings to the flange, around the flange opening for deforming the O-ring against the inlet tube.

Abstract: The invention relates to a sealing unit for a fuel pressure sensor for sealing an at least virtually flat sealing joint between the sensor and a component that carries it via a screw connection, wherein a round sealing washer with a central bore is disposed between the threaded bolt-shaped end of the sensor housing with its central sensor bore and the bottom of the threaded bore of the component with its central pressure fluid opening. A pin is formed onto the threaded bolt-shaped end of the sensor housing, which pin centers the sealing washer, fixing it in a positive and/or frictional, non-positive manner, and rises above an end face that serves as a bearing surface for the sealing washer. The pin ends in an end face and has a length that is shorter than the thickness of the sealing washer. A sealing unit is produced that assures a reliable sealing function and permits a simple installation and disassembly of the sealing washer while reclaiming the sealing washer in a sealing position.

Abstract: A watertight grommet for a wire harness including a core made up of a pair of complementary semi cylinders which are placed together to form a complete cylinder surrounding the harness. The harness extends through the bore of the complete cylinder and is tightly retained thereby in a watertight matter. There is an enlarged inner diameter of the bore near the front end, thus forming a gap between the harness and the inner surface of the bore wherein a sealant is introduced. A cylindrical sleeve is drawn over the outside of the core to complete the seal. The latter can have a groove therein for mounting on a separator.

Abstract: To provide a gasket holder facilitating attachment and detachment of the gasket holder and capable of preventing positional shift and detachment of a gasket, a first gasket holding portion formed in a straight line and a second gasket holding portion formed in a curved line are provided to a gasket retainer, a gasket is held by three point support of a recess of the first gasket holding portion and recesses and of the second gasket holding portion, and bending portions and of the gasket retainer are bent and are held by stopper holes of a flow rate control valve block.

Abstract: Apparatus including an elastomeric gasket and a rigid holder therefor for resiliently connecting a sewer pipe in the wall opening of a concrete manhold to prevent leakage through the connection under extreme conditions of ground settling and overhead loading. The base of the gasket is anchored in the opening with its interior surface in flush alignment with diverging surfaces of the wall opening and having an inside diameter substantially corresponding to the outside diameter of the pipe for a press fit. The holder is preassembled with the gasket for casting of a port in a wall in situ.

Abstract: A retainer comprises a gasket holder for holding the outer periphery of an annular gasket, and a coupling member holder for holding an end portion of a coupling member. The coupling member holder comprises two elastically deformable lugs projecting axially of the retainer for holding the coupling member. The retainer has handle pieces elastically deformable radially inwardly of the retainer to thereby elastically deform the coupling member holding lugs radially inward.

Abstract: An improved spiral wound gasket is disclosed that deters and redirects buckling. The invention includes the following: an integral inner ring, a gasket element, outer wraps and a outer guide ring. The integral inner ring is a winding of a thin strip of metal of at least seven revolutions that is overlapped over itself and secured to itself. The gasket element is wound around the integral inner ring and includes a second thin strip of metal and also a thin strip of filler material so as to form alternate layers of the thin strip of metal and filler material. The outer wraps are a winding around the circumference of the gasket element of a thin strip of metal. The invention also discloses a new outer guide ring that has a inside edge that, together with the outside circumferential edge of a spiral wound gasket, defines apertures. These apertures or expansion zones allow filler material to displace radially outwardly rather than radially inwardly to form buckles.

Abstract: A split dove-tail gasket channel structure includes a fir structure having a first external surface and a first edge plane substantially parallel to the first external surface, a first surface substantially perpendicular to the first edge plane, a second surface adjacent to the first surface and at an acute angle to the first edge plane, and a third surface adjacent to the second surface and at an acute angle to the first edge plane. A second structure has a second external surface and a second edge plane substantially parallel to the second external surface, a fourth surface substantially perpendicular to the second edge plane, a fifth surface adjacent to the fourth surface and at an acute angle to the second edge plane, and a sixth surface adjacent to the fifth surface and at an acute angle to the second edge plane.

Abstract: An apparatus and method for injecting corrosion control compound into a crevice or void such as pipe flanges featuring a corrosion control kit comprising a syringe injector having a detachable nozzle, a corrosion control compound, pipe tape and a mantle for heating the compound. Other optional items may be included in the kit. The method of the subject invention utilizes the apparatus, is cost efficient and easy to perform. The resulting seal formed between the flanges is easy to inspect and requires no maintenance.

Abstract: Interlocking end members for expandable compression rings. Compression rings are formed by attaching the interlocking members to the ends of a flexible strip and coupling the interlocking members together. The interlocking members include a recess for receiving the ends of a flexible strip and a jaw structure for engagement with one another. The jaw structure includes two or more offset opposed jaw members which include angled teeth. The teeth of opposed jaw members of coupled interlocking members engage one another in a locking relationship, whereby the resulting compression ring can be expanded and locked into a range of positions.

Abstract: A device is positioned for passing a lengthy object through an opening in a wall to which a flat plate made of a stable material is attached. The plate has a hole that corresponds to and is aligned with the opening. A one-piece rubber sleeve that surrounds the lengthy object is provided for its moisture-proof insertion, and has a lengthwise separation which can be closed. A circumferential groove is provided on the inside of the rubber sleeve and is designed to lay against the lengthy object; this groove contains a ring-shaped insert made of a flexible material. In addition, the rubber sleeve has an outwardly open circumferential recess at one outer axial end, to seal the edge that limits the hole in the plate.

Abstract: A planar cavity sealing article comprises:(a) at least one driver comprising a crosslinked foamable polymer, and(b) a sealer comprising an uncrosslinked foamable polymer in intimate contact with the at least one driver and substantially surrounding the at least one driver in the plane of the article.

Abstract: An anchored guide tube centered on an axis and a conduit passing axially through the tube are relatively sealed by a feedthrough fitting having a flexible and shrinkable sleeve having an inner portion secured to an outer surface of the guide tube at an end thereof and a outer portion folded back over the inner portion and forming an annular fold generally at the tube end. A lubricant or the like is provided for facilitating sliding of the outer portion on the inner portion from a storage position folded back over and lying on the inner portion and a use position extending outward past the tube end away from the inner portion.

Abstract: An expandable band and locking mechanism is used to install and secure a flexible sealing element, such as a rubber seal or gasket, against an internal annular surface, such as in a manhole or pipe. The expandable band is capable of expanding and being locked at various diameters. The expandable band preferably has a plurality of deviations or ribs that provide a plurality of pressure points against the sealing element. The expandable band includes a first locking region, such as an end locking portion of the band, and a second locking region, such as one or more adjustable locking elements or notches in the band. The locking mechanism preferably includes a locking member having a first locking tab for engaging with the end locking portion of the band and a second locking tab for engaging with one of the adjustable locking elements or notches in the band. The locking mechanism further includes a housing for covering the locking member and engaging the band.