Abstract: A gasket is provided having a body including at least one service aperture and an integrally formed sealing bead portion. In an embodiment, the sealing bead portion includes a first outwardly extending bead and a first concave channel opposite the first outwardly extending bead. The first concave channel is defined by a second outwardly extending bead and a third outwardly extending bead. In an alternative embodiment, the sealing bead portion includes an annular sealing member molded to the body, and the annular sealing member is opposite an outwardly projecting sealing bead. In a second alternative embodiment, the sealing bead portion includes an internal chamber filled with a pressurized gas. In a third alternative embodiment, the sealing bead portion defines a chamber filled a polymeric material.

Abstract: A novel gasket is provided for filling the space between two mating surfaces on components in an automotive transmission. The gasket includes one or more patches of silicone integrated into a portion of the gasket for providing one or more channels through the gasket, having leak proof seals at the ends of the channel. Bolt passage holes are spaced in the gasket to register with corresponding bolt holes in the mating surfaces. A channel aperture passes through the portion of the gasket augmented with the silicone patch, providing a channel between the mating surfaces. The ends of the channel define leak proof seals between the gasket and the mating surfaces for providing a leak proof fluid flow channel between the mating surfaces.

Abstract: The invention relates to the application of a projection to a metal layer of a metallic cylinder-head gasket for an internal-combustion engine having at least one elastic metal sheet, which is provided with one opening or a plurality of adjacent openings depending on the number of combustion chambers of the internal-combustion engine, a bead being provided in the at least one elastic metal sheet around each opening, at a distance from the latter, so that a straight section of sheet metal is left clear in the region of the edge of the opening, for which bead a spring travel limiter or stopper, which runs coaxially with respect to the bead and is formed by the projection, is provided, the projection being produced from a mixture which contains a plastic with a high mineral filler content. A mixture of an elastomer in particular with a filler which has been surface-treated by means of a silane is used.

Abstract: A metallic gasket having a first seal line SL1 arranged in a manner to encircle the peripheral edge of an exhaust gas hole 3, a second seal line SL2 arranged along the outer peripheral edge of a base plate 2, and full beads 6, 7 formed each in a convex cross-section by bending the base plate 2 along both seal lines. Elastic sealing material 8 to 11, the height of which is substantially equal to the height of a convex portion of the beads, are fixed to the convex portion and a flat surface continuous to the convex portion. The elastic sealing material on the flat surface is so arranged as to cover up to the opening mouth position of the exhaust gas hole 3 or a peripheral edge position of the base plate 2 and, furthermore, elastic material parts 12, 13 are filled in a concave portion of the bead on the reverse side of the convex portion. This structure of the gasket leads to cost reduction and enables the gasket to maintain a stable sealing performance for a long period of time.

Abstract: A sealing element, especially a flat seal, consisting of a metal-supported elastomer material, containing sealing profiles that are offset form one another, between which, at given intervals, elements that provide acoustic de-coupling, also made of elastomer material, are located.

Abstract: A gasket assembly is formed at least two carrier layers laminated together and formed with at least one opening through the carrier corresponding to openings across a parting plane of two members to be sealed. an elastomeric seal is molded to the carrier to define sealing beads on opposite sides of the carrier adjacent the opening with respective contact surfaces which engage the members to be scaled. The sealing contact surfaces are asymmetrically arranged contact surfaces are asymmetrically arranged relative to one another across the carrier to accommodate associated misalignment of the openings of the members to be sealed across the parting plane.

Abstract: A metallic gasket comprising a base plate having a first thickness-increased portion 3 formed at a peripheral edge on a combustion chamber opening 3 side of a base plate, and a first seal line SL1 and a second seal line SL2 arranged on the outer side of said first thickness-increased portion 3. No openings other than a cooling water hole 8 exist between said two seal lines. Beads formed along said seal lines SL1 and SL2 each consist of a convex metal bead raised only upward from an upper surface of said base plate and a rubber bead made of an elastic sealing material fixed to a convex portion and a concave portion of said metal bead. This structure of said metallic gasket can improve a processing accuracy of said metal bead and also enhance cooling effects on said metallic gasket itself and said joint surfaces of an engine, between which said metallic gasket is disposed.

Abstract: A crankcase is coupled to a lower end face of a cylinder block of an engine and includes first and second case halves coupled to each other in a plane perpendicular to joint surfaces of the cylinder block and the crankcase. A U-shaped seal groove is defined in one of the joint surfaces of the case halves. Enlarged recesses are made at opposite ends of the seal groove. A bar-shaped seal member having enlarged end portions formed at opposite ends thereof is mounted in the groove such that the enlarged end portions are filled in the enlarged recesses. Thus, it is possible to ensure accuracy of the positioning of the bar-shaped seal member without the need for a high level skill; thereby, reliably sealing portions of intersection between the joint surfaces of the cylinder block and the crankcase and the joint surfaces of the case halves of the crankcase.

Abstract: A metallic gasket including a base plate having a convex metal bead formed, by bending the base plate, between a combustion chamber opening and on the outer periphery portion of the base plate, and a first thickness-increased portion formed thicker than the remaining portions of the base plate to provide a difference in thickness, by which a surface pressure is made to concentrate on the first thickness-increased portion to seal a joint between a cylinder head and a cylinder block when the metallic gasket is disposed between the joint surfaces of the cylinder head and the cylinder block and fastened by clamping bolts. An elastic sealing material is fixed to the convex portion of the metal bead and filled in a concave portion on the reverse side of the base plate to form a rubber bead, and the sealing material is deformed under compression in the through-thickness direction in cooperation with the deformation of the metal bead when the gasket is fastened with clamping bolts.

Abstract: The invention relates to a gasket having at least one metallic layer, in which at least one gasket opening and at least one bead are formed, and in and/or adjacent to the bead a coating is applied as a deformation limiter, which comprises at least one filler and one bonding agent, the mass proportion of the filler being greater than the bonding agent and the filler being present in particle form, and the individual spherical particles having a small surface in relation to the volume of the particle.

Abstract: A metal gasket for an internal combustion engine is formed of a metal plate including a base portion extending substantially throughout an entire area to be sealed, at least one hole formed in the base portion, a curved portion extending from the base portion, and a flange extending from the curved portion and disposed on a part of an upper surface of the base portion. A coating member is deposited on the flange facing the base portion and/or the base portion facing the flange. The coating member is formed of a non-thermoplastic coating material to operate as a surface pressure regulating member between the flange and the base portion to thereby regulate a surface pressure at the flange.

Abstract: This invention relates to a stainless steel gasket having markedly improved strength and fatigue properties due to precipitation strengthening. Its composition comprises C: at most 0.03%, Si: at most 1.0%, Mn: at most 2%, Cr: 16.0%-18.0%, Ni: 6.0%-8.0%, N: at most 0.25%, if necessary Nb: at most 0.30%, and a remainder of Fe and unavoidable impurities. After cold rolling, final annealing is carried out, and after a structure is formed of recrystallized grains with an average grain diameter of at most 5 ?m having an area ratio of 50-100% and an unrecrystallized portion having an area ratio of 0-50%, a metal gasket is formed by steps including temper rolling with a reduction of at least 30% to make the area ratio of a strain induced martensite phase at least 40%, and forming and heat treatment at 200-350° C.

Abstract: The seal for the head gaskets of internal combustion engines may be a bead seal of material that may be elastic, resistant to compression and deformable under pressure. The bead seal may be attached around the holes in a malleable copper head gasket on each side of the head gasket. The bead seals on each side of a selected hole may be at different distances from the hole.

Abstract: A metal gasket seals two engine members of an internal combustion engine. The metal gasket includes a metal gasket member extending substantially throughout an entire area of the engine members and has two surfaces to contact the engine members. At least two seal coatings are coated on the two surfaces of the gasket member to constitute sealing lines on the surfaces of the gasket member. One of the sealing lines on one surface of the metal gasket member is shifted from the other of the sealing lines on the other surface of the metal gasket member. Micro coatings are coated on the two surfaces of the gasket member. The thickness of the micro coating is less than that of the seal coating.

Abstract: A metal gasket for sealing a region whereat there exists three pairs of sets of opposing surfaces between a cylinder block, a chain case and a cylinder head of a chain driving engine. The metal gasket includes an elastic seal member provided on an inner rim of a chain opening formed in said metal gasket, and a storing structure for liquid gasket material used for sealing. The storing structure defined is an enlargement of the chain opening oriented to coincide with a juncture of the region whereat three pairs of opposing surface areas exist, the enlargement defining a cavity in which is housed liquid gasket material and a through hole is provided externally of the cavity.

Abstract: The invention relates to the application of a projection to a metal layer of a metallic cylinder-head gasket for an internal-combustion engine having at least one elastic metal sheet, which is provided with one opening or a plurality of adjacent openings depending on the number of combustion chambers of the internal-combustion engine, a bead being provided in the at least one elastic metal sheet around each opening, at a distance from the latter, so that a straight section of sheet metal is left clear in the region of the edge of the opening, for which bead a spring travel limiter or stopper, which runs coaxially with respect to the bead and is formed by the projection, is provided, the projection being produced from a mixture which contains a plastic with a high mineral filler content. A mixture of an elastomer in particular with a filler which has been surface-treated by means of a silane is used.

Abstract: An infant care apparatus having a canopy movable vertically with respect to an infant platform. The canopy has a lower edge mating with upper peripheral edges of a plurality of vertical walls forming an infant compartment. At least one of the vertical walls is a door pivotally affixed to the infant platform and rotates between open and closed positions. A seal is located on the lower edge of the canopy to seal against the upper peripheral edge of the vertical walls. An elongated flange of the seal is affixed to the canopy by hardware and a cover flap extends downwardly from the upper edge of the flange to cover the hardware. A sealing flap extends downwardly and inwardly toward the infant compartment from the lower edge of the flange. A flexible material is co-extruded with the seal for the sealing flap and a hinge between the flange and the cover flap.

Abstract: A cylinder head gasket is formed of a single metal base plate for sealing between a cylinder head and a cylinder block of an internal combustion engine. The cylinder head gasket has a primary sealing portion including a grommet or shim around a cylinder bore, and a secondary sealing portion outside the primary sealing portion. The secondary sealing portion is formed of a bead and a foamed coating layer coated on one side or both sides of the bead to cover at least a portion of the bead in a belt shape.

Abstract: A seal assembly and method of making a seal assembly for a transmission that provides a plurality of pressurized fluid connections. The seal assembly is formed between two adjacent plates that have corresponding holes that include axially extending perimeter walls. An elastomeric sealing element is over molded onto a first plate to line the holes and cover the perimeter walls. The second plate is assembled to the first plate.

Abstract: A valve shaft seal for a valve shaft of an internal combustion engine, includes at least one sealing lip of an elastomer material having a first inside diameter and configured to surround the valve shaft and a plurality of projections distributed uniformly around a circumference of the sealing lip and directed toward the valve shaft, a second inside diameter, smaller than the first diameter, being formed by the projections.

Abstract: A heat exchanger has a fluid chamber with a peripheral foot, as well as a collector plate with an edge delimiting a groove for a gasket and the peripheral foot. The gasket is formed from a bead of a polymerizable material which is deposited, at a chosen location, on the bottom of the groove, and then polymerized before being compressed by the peripheral foot of the fluid chamber.

Abstract: Flat gasket for sealing a sealing gap between sealing surfaces of machine components which are pressable against the flat gasket, the flat gasket having a gasket plate formed by several sheet metal layers and provided with at least one elastomeric sealing element in an area serving to seal a sealing gap area in which the component sealing surfaces lead to a locally varying sealing surface pressure at the flat gasket, the sealing element being arranged on a first one of the sheet metal layers and, in the mounted state of the flat gasket, extending through a cutout in a second sheet metal layer forming a first one of the main surfaces of the gasket plate; in order that the sealing element can already be applied by the gasket manufacturer, but, nevertheless, is protected against damage in the course of assembly of the machine components, the gasket is so designed that the sealing element is in the form of a sealing element formed from a material which is applied to the first sheet metal layer and is curable in s

Abstract: A gasket for sealing an intake manifold of an internal combustion engine, includes a plastic body defining substantially co-planar surfaces that define top and bottom surfaces of the gasket. Each of a plurality of air intake apertures includes an interiorly molded circumferential elastomeric edge bead. Each aperture edge includes a circumferential array of small openings for mechanical securement of the elastomeric bead to the plastic carrier, and each opening fills with elastomer upon the overmolding of the bead to the edge during manufacture. The gasket also includes primary and secondary compression limiters, formed of powdered metal in described embodiment, located immediately adjacent bolt holes and symmetrically between air intake apertures, respectively. Finally, the gasket includes flexible locator grommets for assuring positive alignment between the cylinder head and intake manifold.

Abstract: A gasket assembly for interposition between a mating, mutually-opposed pair of curved surfaces. The gasket includes a flexible metal retainer, and at least one seal element which is supported on the retainer along at least a portion of the inner or outer perimeter thereof. In a stressed state, such as under compression between two curved interface surfaces, the retainer is made to conform to curvatures of the surfaces. However, upon being removed from compression, the retainer substantially recovers to its normal state.

Abstract: A cylinder head gasket is used for an internal combustion engine with at least three cylinder bores. The gasket is formed of a metal plate extending substantially throughout an entire area to be sealed, and a reinforce coating. The metal plate includes two end holes, at least one inner hole sandwiched between the two end holes, and beads surrounding the respective holes. The two end holes and at least one inner hole are arranged linearly to correspond to the cylinder bores of the engine. The reinforce coating is deposited around the peripheral portion of the at least one inner hole so that sealing pressures are formed substantially equally around the two end holes and at least one inner hole. Other reinforce coatings may be deposited around the peripheral portions of the end holes.

Abstract: A unitary boundary gasket adapted for sealing between flanged portions of two axially mated surfaces of rigid metallic members, such as between an engine block and an associated engine oil pan. In one preferred form, the gasket has a rectilinearly shaped annular body, and is formed of a one-piece radially outermost rigid metallic carrier having a first axial thickness, and adhesively bonded to a one-piece radially innermost elastomeric sealing body. The sealing body, bonded to the metallic carrier at the radially innermost edge of the carrier, includes a plurality of spaced apertures adapted for accommodating passage of bolt members for fastening said flanged portions together about the gasket body. Intermediate the apertures are longitudinally extending waffle pattern regions designed for sealing against leakage of fluids between said apertures. In one preferred form, a plurality of sealing beads extend medially between each waffle pattern region.

Abstract: A unitary boundary gasket is adapted for sealing between flanged portions of two axially mated surfaces of rigid metallic members, such as between the bottom of an engine block and an associated engine oil pan. In one preferred form, the gasket has a rectilinearly shaped annular body, and is formed of a one-piece radially outermost rigid metallic carrier having a first axial thickness, and adhesively bonded to a one-piece radially innermost elastomeric sealing body. The sealing body is bonded to the metallic carrier at the radially innermost edge of the carrier. The sealing body includes a plurality of spaced elastomeric apertures adapted for accommodating passage of bolt members for fastening said flanged portions together about the gasket body. The apertures are designed for sealing against leakage of fluids between said apertures and said bolt members. For this purpose, each aperture includes at least two axially spaced integral sealing lips.

Abstract: The invention concerns a joint comprising a flat metal core made of soft steel, coated on each of its surfaces with a layer of elastomer bound by constituents ensuring its adherence on the metal, the thickness of the elastomer varying on the joint surface, depending on the shape of the parts between which the joint is designed to be mounted and the sealing requirements at each point on the joint surface, the elastomer being cold deposited on each joint surface, then the whole assembly being placed in a heated mould, for forming the elastomer before vulcanisation.

Abstract: Flat gasket with a gasket plate formed by a sheet metal layer for sealing a sealing gap between sealing surfaces of machine components, the gasket plate being provided with an elastomeric sealing element in an area in which the component sealing surfaces lead to a locally varying sealing surface pressure; in order that the sealing element can already be applied by the gasket manufacturer and will not be subjected to the danger of damage during installation of the gasket, a sealing element formed from a material curable in situ is applied to a first main surface of the sheet metal layer, and the sheet metal layer is provided with a cutout for passage of the curable sealing element material therethrough so that the sealing element material passes through this cutout and comes to rest against the adjacent component sealing surface only after installation of the gasket.

Abstract: A metal gasket for an internal combustion engine is formed of at least one metal plate extending substantially throughout an entire area to be sealed. The metal plate includes a hole to be sealed, and a bead projecting outwardly from the metal plate to surround the hole. A concave is formed inside the bead to extend inwardly from an outer surface of the metal plate. A sealing material is disposed in the concave to project outwardly from the outer surface of the metal plate. Thus, even if a foreign material is disposed on the bead, the sealing ability of the gasket is not substantially affected.

Abstract: A metallic gasket installed between confronting surfaces of engine components is improved in heat conduction between the components so as to reduce the adverse thermal influence to the engine. The metallic gasket used between the confronting surfaces of, for example a cylinder head and a cylinder block is composed of an annular raised portion defining inside a gas hole in alignment with an associated cylinder bore, and a surrounding metallic sheet connected to the annular raised portion. Both the annular raised portion and the surrounding metallic sheet are made of aluminum material to render the heat conduction between the components efficient. Thus the improved gasket can reduce the adverse thermal influence such as thermal deformation, thermal stress, and so on, whether the components are made of different materials or same materials.

Abstract: A gasket assembly for interposition between a mating, mutually-opposed pair of curved surfaces. The gasket includes a resilient retainer formed of a metal material and having an inner perimeter and an outer perimeter defining an enclosed geometric shape which extends in a normal state of said gasket within a first plane to a first diametric extent along a first axis, and to a second diametric extent along a second axis disposed within said first plane generally perpendicular to said first axis. The retainer is flexible in the first and second diametric extents within one or more planes generally perpendicular to the first plane. At least one generally annular seal element is supported on the retainer to extend coaxially along at least a portion of the inner or outer perimeter thereof. Each of the seal members has oppositely-disposed first and second radial sealing surfaces configured for abutting, sealing contact with a corresponding one of the interfaces surfaces.

Abstract: This gasket comprises two superimposed similar metal plates, each of which comprises a central main part and a peripheral part which are separated from one another by a slot intended to house a bead of sealing elastomer, the two parts of each plate being locally connected by bridges, the coincident slots of the two superimposed metal plates being lined with one and the same bead of sealing elastomer protruding from both sides of the gasket, and means for laterally immobilizing the two metal plates.

Abstract: Flat gasket, in particular, cylinder head gasket with a gasket plate which has at least one aperture and at least one sheet-metal layer which is provided with a bead surrounding the aperture, as well as with a stopper device preventing any excessive bead deformation; so that the sheet-metal layer does not tear even during dynamic pressure loads on the bead in the bead area which accompany a considerable flattening of the bead, the recess formed by the bead is filled over at least a considerable part of its depth with an elastomeric material which has appreciable flow properties under pressure even at ambient temperature (21° C.), i.e. is plastically deformable to a not inconsiderable extent.

Abstract: A gasket comprises a thin plate to be arranged between confronting surfaces of a cylinder block and a cylinder head. The thin plate has attached with adhesives susceptible to plastic deformation at areas where the thin plate comes in mating with the confronting surfaces. The adhesives come in adhesion with the confronting surfaces to restrain relative displacement that might occur constantly between the mating surfaces of the plate and the confronting surfaces. This contributes to keeping the gasket stiff. The adhesives of plastic deformation property are arranged along peripheries of cylinder bore holes at the areas where the thin plate comes in mating with the confronting surfaces. The adhesives, when have come in adhesion with the confronting surfaces, not only establish the reliable head-to-block sealing, but also restrain the displacement that might occurs constantly between the mating surfaces, in favor of plastic deformation of the adhesives.

Abstract: A metal laminate gasket is installed in an internal combustion engine having at least one hole therein. The gasket includes a first metal plate, a second metal plate situated over the first metal plate, and an auxiliary sealing member. The first plate includes a base portion, a curved portion to define a first hole, and a flange extending from the curved portion. The flange, the curved portion and a part of the base portion constitute a main sealing portion without substantial elasticity. The second plate has a large second hole and is situated above the base portion of the first plate. The sealing member is situated in a space between an edge of the second hole and the flange. The main sealing portion non-resiliently seals around the hole, while the sealing member resiliently seals outside the main sealing portion, so that even if the engine is made of light metal, the engine is not damaged by the gasket. The gasket can securely seal around the hole.

Abstract: A gasket (40) has a trough (44) in a supporting sheet (42) thereof. The trough has a bead (52) mounted therein. Said bead has a transverse cross section defined by lower (56) and side (58) surfaces which conform to and engage bounding surfaces of the trough, and also defined by an upper surface (60) which, in an uncompressed state of the bead, defines a projection (54) extending out of the trough. The surface (60) also defines a recess (62) extending parallel to said projection, the recess being formed within said trough. Said projection (54) is positioned on one side of the longitudinal center-line (70) of the bead (52) and said recess (62) is positioned on the other side of said center-line.

Abstract: A packing body 11 is accommodated in a packing accommodating groove 29 provided on a seal end surface 26 in one side of a case 19. A mounting projection 12 is provided integrally on the packing body 11 and is protruded from the packing body 11. The mounting projection 12 has a hook pin hole 17, into which a hook pin 32 protruded from a rear side of the seal end surface 26 of the case 19, is inserted, and an engagement hole 18 which is closer to a tip than the hook pin hole 17 and into which a fixing assistant tool 33 for pulling the mounting projection 12 is inserted.

Abstract: A soft gasket material having two opposed facial surfaces and an edge that is substantially perpendicular to those surfaces has a coating on the edge. The coating has a thickness length B which is a distance extending directly from the edge at its center point to the coat's outer surface. The coating further covers the edge from side to side and extends past at least one corner of the edge in a protruding length A which is an amount that is effective to form a barrier against the passage of fluids onto the face of the gasket. In coatings where the protruding length A is not supported by the gasket face, the ratio of protruding length A: thickness length B must be at least about 0.8, protruding length A must be a minimum of at least about 4 mils, and thickness length B must be a minimum of at least about 3 mils. In coatings where the protruding length A is supported by the gasket face (a distance C), the ratio of protruding length A: thickness length B can be at least about 0.

Abstract: A T-joint gasket assembly for sealing a first surface, a second surface adjacent to the first surface and a third surface intersecting the first and second surfaces, said first, second and third surfaces generally forming a T-joint, said T-joint being sealed absent an external sealant such as an RTV sealant agent, said gasket assembly comprising: a first gasket member which has at the ends thereof a plurality of sealing beads and at least one sealing finger, a second gasket member positioned generally coextensive with said third surface, and being oriented so as to provide a T-joint like connection with said first gasket member, with both the first gasket member and the second gasket member including a supportable elastomeric sealing material to carry out the gasket sealing, said second gasket member possessing a plurality of elastomeric sealing pads thereon, said sealing beads and said sealing finger of the first gasket member being provided to make sealing contact with said sealing pads on said second gaske

Abstract: A static gasket for sealing mating flanges which are clamped together by at least one fastener. A carrier holds the seal in a groove and the seal is protected from over compression by a compression limiter which is inserted into an aperture in the carrier. The compression limiter is crescent shaped to permit the insertion of a fastener stud into a through hole formed between the compression limiter and the aperture in the carrier.

Abstract: A cylinder head gasket has at least one combustion opening, a central metallic core and an expanded graphite facing layer on each side of the core. A stress rising bead is disposed on at least one of the graphite layers encircling each combustion opening for sealing around the combustion openings.

Abstract: A gasket having two opposed faces and an edge disposed therebetween is given a wide coating on the edge. The coating is sufficiently wide so that it goes from corner to corner on the edge and protrudes past the corner on at least one side of the gasket in a direction perpendicular to a facial plane of the gasket. The coating protrudes in an amount effective to give the gasket a sealing ability which is better than the sealing ability of the same gasket if it had a coating merely extending from corner to corner without protruding.

Abstract: A seal structure and capable of reducing a width of a seal portion as much as possible while preventing the seal portion from being broken away. The seal structure for sealing between two members in a fluid-tight or air-tight manner is structured such that the seal portion is formed in at least one of joint surfaces of the two members by continuously printing along a seal portion of the joint portions and that a recess portion or a groove is formed at a middle portion of the seal portion in a widthwise direction.

Abstract: The invention permits stacking of seals without possibility of the sticking of their synthetic rubber seal members to one another. Moreover, when assembling the seals to produce anti-friction bearings, the invention permits storing the seals as a stack in a stocker of an automatic assembler and, unlike the case of using silicon or like prior art anti-sticking material, substantially eliminates generation of fine particles or the like adversely affecting precision apparatuses and deteriorating the reliability thereof. In an anti-friction bearing comprising an inner ring (1), an outer ring (2), and rolling elements (3) provided between the inner and outer rings, a side gap between the inner and outer rings is closed by seals (4) of the invention, which each include a synthetic rubber seal member (6) and a surface active material (7) coated thereon.

Abstract: A rubber composition comprising the following components (A) to (C) and comprising no zinc-containing compound:(A): an ethylene-.alpha.-olefin copolymer rubber, ethylene-.alpha.-olefin-nonconjugated diene copolymer rubber, or, ethylene-.alpha.-olefin copolymer rubber and ethylene-.alpha.-olefin-nonconjugated diene copolymer rubber,(B): magnesium oxide, and(C): carbon black.

Abstract: A gasket assembly for use in an automotive engine for sealing a T-joint or multi-joint assembly without the use of a secondary sealing media such as RTV. The gasket assembly including a first gasket having a core member, having a plurality of orifices. A seal member attached to the side of the core member. At least one sealing bead extending from an end of the seal member, at least one of the sealing beads engaging with a sealing pad attached to a second gasket to form a T-joint between an engine block, an oil pan and front cover.

Abstract: A gasket of the invention is formed of a gasket member extending substantially throughout an entire area to be sealed. The gasket member includes a base metal plate and at least one sealing member disposed on at least one of surfaces of the base metal plate. A sealing section and a pressure affecting portion are formed in the sealing member. The sealing section has a compressibility, while the pressure affecting portion has a height and compressibility less than those of the sealing section. When the gasket is tightened, the sealing section is compressed to securely seal around a hole to be sealed. The pressure affecting portion having less compressibility is formed near bolt holes, so that the gasket can be tightened easily without gradually decreasing its tightening pressure.

Abstract: An edge of a cylinder bore hole of a base plate is folded back on the base plate to form a double-layer folded portion, and a soft member is held in the inside of the folded portion. Folded portions are also formed by folding an outer peripheral edge of the base plate at positions along a straight line which passes through center points of bolt holes which are located at each side of a reference line passing through center points of cylinder bore holes. The straight line is parallel with the reference line. Further folded portions are formed by folding the outer peripheral edge of the base plate at positions along a further straight line which passes through center points of bolt holes which are located at both sides of the reference line so that the further straight line is orthogonal to the the reference line. Rubber beads made of silicon rubber are formed on both joining surfaces of the base plate to bound each of the cylinder bore holes and the bolt holes.

Abstract: A vented, unitary sealing grommet for establishing a first liquid-tight interface between a ignition coil and a spark plug adapter tube and a second liquid-tight interface between the ignition coil and a valve cover includes a hollow main body portion having a substantially cylindrical shape with a longitudinal axis and including a pair of annular sealing ribs, a planar flange portion which is disposed within a geometric plane which is substantially perpendicular to the longitudinal axis, the main body portion being designed to fit between the ignition coil and the spark plug adapter tube such that the annular sealing ribs are compressed due to the interference fit. The planar flange portion is designed to fit between ignition coil and the valve cover.