Abstract: A seal and guard assembly for a bearing cup assembly in a universal joint includes an annular seal assembly provided about the open end of a bearing cup. The seal assembly includes a metallic support ring and an elastomeric seal. The support ring is generally Z-shaped in cross section, having upper and lower radially extending flange portions which are connected together by an axially extending intermediate portion. The intermediate portion of the support ring is press fit within the inner bearing surface of the bearing cup. The upper flange portion of the support ring extends radially inwardly from the intermediate portion. The lower flange portion of the support ring extends radially outwardly from the intermediate portion adjacent the open end of the S bearing cup. The elastomeric seal is disposed within the intermediate portion of the support ring and is attached thereto. An annular seal guard is removably secured to the seal assembly.

Abstract: An arrangement to seal an element (1), moving in respect to an oblong slit, and to reduce friction, in which slit there is as a slealing at least one medium pressurized tubular sealing (4) characterized in that in the element (1), which moves in respect to the slit there is a part (6) tapering off towards its ends and the side of which is furnished with a hole (7) for feeding pressurized medium, for instance air, to the sliding face between the sealing (4) and the part (6), and that there is on the side of the part, at least at a certain distance of the said sliding face, a groove (8) along which pressurized medium can be fed.

Abstract: A gas-path leakage seal for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a gas turbine (such as combustor casing segments). The seal includes a cloth-layer assemblage positioned in the leakage-gap. The cloth-layer assemblage includes a metallic, woven cloth layer having a first group of generally equal-diameter warp wires and a second group of generally equal-diameter weft wires. Adjacent wires of one of the first and second groups of wires are spaced apart by a center-to-center distance equal to generally between four and ten times the diameter of the wires of the other of the first and second groups of wires.

Abstract: A gasket assembly includes an elongate flexible seal having opposite top and bottom edges. A portion of the seal adjacent to the top edge presenting a generally bulbous configuration. Another portion of the seal adjacent to the top edge presents a generally planar configuration. The bottom edge of the seal contains a channel. A rigid support member has a top portion which is received within the channel of the seal.

Abstract: A metal gasket for a cylinder head includes a superposed assembly of an elastic metal base plate having a plurality of beads formed along a plurality of juxtaposed holes for combustion chambers, an elastic metal adjusting plate having a plurality of beads formed along a plurality of juxtaposed holes for combustion chambers, and a grommet having a plurality of juxtaposed holes for combustion chambers which are smaller in diameter than the holes in the base and adjusting plates. The grommet is folded about the edges of the holes in the adjusting plate lying between the base plate and the grommet in intimate contact therewith, so that the holes in the base and adjusting plates and the grommet may be aligned to form a plurality of bores.

Abstract: A metal laminate gasket of the invention is engaged with an engaging projection of an engine part for immovably locating the gasket on the engine part. The gasket is basically formed of first and second metal plates laminating together. The first plate includes at least one first hole and at least one first engaging portion extending into the first hole. The second plate is situated above and connected to the first plate. The second plate includes at least one second hole and at least one second engaging portion extending into the second hole. When the gasket is urged against the engine part, the vertically spaced first and second engaging portions deform and engage the engaging projection to thereby prevent the gasket from easily disengaging from the engaging projection.

Abstract: A head gasket comprising a laminate, metallic core and fiber-elastomer facing layers on each major surface of the core and defining a plurality of combustion openings, oil and water holes and bolt holes. A thin shim is disposed on one of the facing layers. The shim has arcuate elements lying adjacent to each of a pair of adjacent combustion openings. U-shaped armors at each combustion opening have legs overlapping the edges of the facing layers and portions of the shim elements adjacent to the edges of the combustion openings, with the shim elements extending radially outwardly beyond the armor legs.

Abstract: This metal gasket is formed by laminating a pair of bead plates and a pair of intermediate plates, and capable of setting the temperature distribution thereof uniform by efficiently cooling high-temperature regions which are in the vicinity of swirl chambers without causing a decrease in the rigidity and strength thereof. The portions of the bead plates which are in the vicinity of the parts thereof in which the swirl chambers are positioned are provided with coolant-contact areas surrounded by half beads formed on the bead plates, these coolant-contact areas being provided with holes. The wall surfaces of these holes directly contact the cooling water flowing in a water jacket in a cylinder head, and fulfil the function of radiating the heat transmitted from a high-temperature combustion gas thereto.

Abstract: A seal assembly for use in completion and production operations of a subterranean hydrocarbon well for sealing the annular space between the production casing and tubing, which assembly generally includes primary seal members having a circular, oval or elliptical shaped cross-sections, and secondary seal members having convex sections for abutting the primary seal members. The assembly further includes retainers on the tubing which define the seal bore into which the seal members are positioned, and a polished surface on the casing for allowing movement of the seal members against the casing.

Abstract: A metallic gasket includes two base plates and a subplate interposed between the base plates, and cylinder bore holes are formed respectively in the base plates and the subplate concentrically. Beads are respectively formed on the base plates circumferentially along a periphery of the cylinder bore hole. An inner edge of the subplate facing the cylinder bore hole is folded back to form a folded section having two layers, and a starting point of a substantially round-shaped folded end portion of the folded section of the subplate is positioned on a line perpendicular to a surface of the gasket, which line passes through ends of the base plates defining the cylinder bore hole, or the starting point of the folded end portion of the folded section of the subplate is positioned slightly at an inside towards the cylinder bore hole beyond the ends of the ends of the base plates. As a result, the folded end portion of the subplate protrudes beyond the ends of the base plates.

Abstract: An improved mechanical seal of the type useful to form a seal between a stationary housing and a rotatable shaft having a shaft axis extending through an opening in the housing. The mechanical seal has stationary components and rotatable components. The stationary components comprise a stationary seal element having a stationary seal surface and the rotatable components comprise a rotatable seal element having a rotatable seal surface. The stationary and rotatable seal surfaces have substantially equal and oblique, preferably, acute, angles to the shaft axis. The seal surfaces oppose each other and are forced together to form a seal. The seal can be secured in place by improved connector clips.

Abstract: A valve stem seal comprising a cylindrical stem-sealing membrane and a membrane supporting flange. The membrane has a corrugated profile which defines one or more loop-shaped channels bounded by contact surfaces on a radially inner face and each channel is inclined at 5.degree.-10.degree. with respect to a plane perpendicular to the longitudinal axis. The channels form a labyrinth seal for any fluid leaking along the outer surface of the stem. A support bearing for the stem is provided on the membrane supporting flange.

Abstract: An improved fluid pressure activated piston return spring seal element is installed in a piston housing annular groove having first and second radial side walls, an axial base wall, and a mouth. The element is annular, formed of an elastomeric material, and has an axis, first and second radial faces, and an axial face. The first radial face faces toward the first side wall, defines an inwardly extending crotch region, and includes a base wall pressure sealing lip. The axial face faces toward and protrudes through the groove mouth and includes a piston pressure sealing lip and first and second angled surfaces.

Abstract: An oil seal for sealing off a fast rotating shaft (10) relative to a housing (11) comprises a first seal element (15) mounted on the shaft (10), a second seal element (18) resiliently mounted in the housing (11), both seal elements (15, 18) having cooperating contact surfaces (25, 26), and a spring (22) acting on the second seal element (18) to provide an axial contact pressure between the contact surfaces (25, 26). The contact surfaces (25, 26) of the seal elements (15, 18) are made of materials of different hardness, and the one consisting of the hardest material is formed with one or more circular ribs (27a-c) disposed concentrically with the shaft (10) and intended to cut mating circular grooves in the other seal element contact surface (25) during a running-in period.

Abstract: This invention relates to a magnetic gasket particularly suitable for forming a seal between a fixed part and an openable part including in regions of curvilinear extension, for example between the body and door of a vehicle, of the type comprising an element for fixing to one of said parts and a seat housing a magnetized bar (11) of substantially rectangular cross-section in which said fixing element and said seat (8) for the magnetized bar are connected together by an extendable deformable tubular chamber, characterised in that said bar (11) is magnetized along at least one of the two shorter opposing sides (19, 19') of its substantially rectangular cross-section, said magnetized side facing when in its operating position the part with which contact is to be made for sealing purposes.

Abstract: An annular metallic support member has a cylindrical surface mountable within a bore of the spherical plain bearing outer ring or bearing housing such that a conical surface of the metallic support member overlies the spherical member. An annular elastomeric seal lip is mounted on the conical surface of the metallic support member, and an elastomeric seal body is mounted on the conical surface of the metallic support member, axially inward of the elastomeric seal lip, such that the elastomeric seal lip and elastomeric seal body contact the spherical member. The elastomeric seal body may have grooves for supplying lubricant to the elastomeric seal lip.

Abstract: A metal gasket of the invention is used as a cylinder head gasket or a manifold gasket. The gasket is formed of a metal plate for constituting a metal gasket, at least one fluid hole, a plurality of bolt holes, and a bead formed in the metal plate to completely surround the fluid hole for sealing the same. The bead includes a waving portion at a portion where high pressure is applied when the engine is operated, and a non-waving portion. The waving portion has a covering area greater than that at the non-waving portion. Therefore, the waving portion can support pressure without creep relaxation.

Abstract: A split mechanical seal including first and second seal ring assemblies, at least one resilient biasing element and at least one axial biasing element. The first and second seal ring assemblies each include a seal ring having two segments that are resiliently supported in the seal. The segments have an outer surface and a pair of segment sealing faces disposed at opposite ends of the segments. The mechanical seal includes a pair of resilient biasing elements disposed about each seal ring, and the resilient biasing element is preferably an elastomeric member. The axial biasing element is associated with at least one seal ring for generating and applying, in cooperation with the elastomeric member, a second radially inward force; the second force operating to bias the segment sealing faces together when the mechanical seal is exposed to a selected pressure condition.

Abstract: A metal gasket assembly for a cylinder head comprises: a metal substrate having a predetermined shape with apertures including cylinder openings, bolt holes, coolant openings and lubricant openings, which metal substrate being provided with half-beads in regions adjacent to the cylinder openings and full-beads in regions therearound; a metal sub-plate having the same planar configuration with and being thinner than the metal substrate; ring-shaped shims attached to the metal sub-plate in regions corresponding to the half-beads of the metal substrate; and a metal by-plate having the same planar configuration with the metal substrate and provided with full-beads in regions corresponding to the full-beads of the metal substrate; which metal substrate, metal sub-plate with shims and metal by-plate forming a laminated gasket assembly.

Abstract: A temperature-responsive actuator for a sealing assembly comprises first and second annular members each having a camming surface for engagement with one another, the first and second annular members being positioned against each other so that they are nested and together exhibit a height "h" at ambient temperatures, the first annular member having a coefficient of thermal contraction less than the coefficient of thermal contraction of the second annular member so that when the thermal actuator is subjected to temperatures less than ambient temperatures, the first and second annular members contract different amounts such that the "effective" height of the actuator becomes "h+.tangle-solidup.h".