Abstract: An annular seal assembly which is adapted to be utilized in a vehicle air conditioning compressor. The seal assembly includes an outer annular support housing which is sealingly secured to the main body of the compressor in coaxial relationship with a rotatable shaft. An annular PTFE seal element includes an outer annular periphery sealingly secured to the support housing, and an inner annular periphery adapted to sealingly engage the rotatable shaft. In the preferred embodiment of the invention, the outer annular housing of the seal assembly is formed to include an inwardly facing annular recessed portion which is adapted to receive an annular gasket ring utilized to provide a seal between the PTFE seal element and the outer annular housing. The outer annular housing is also provided with an outwardly facing inner annular recessed portion which is adapted to receive a suitable tool for removing the seal element from the main body of the compressor.

Abstract: A weather seal device for providing a seal between a surface having longitudinal ridges and/or valleys and an elongate conduit extending therethrough, the device having an apertured base of resilient deformable material and a sleeve of resilient material integral with the base and projecting from one side. The base in use is superimposed on the surface and the elongated conduit extends through the aperture and through the sleeve. The base has a marginal edge portion to be positioned in use so that it extends in a direction inclined in the direction of the longitudinal ridges and/or valleys. The marginal edge portion is contoured along its length in a direction normal to the plane of the base, so that in a free state the length of the marginal edge portion measured along the contours is greater than the linear length.

Abstract: A sealing boot for sealing a power transmitting mechanical joint of the plunging type, especially a mechanical joint which is subject to angular articulation between its input member and output member. The mechanical joint has an outer member, and the outer member has an external cylindrical surface. The sealing boot has a semi-rigid or non-flexible segment which surrounds a portion of the cylindrical surface and this non-flexible segment has a cylindrical slot that sealingly and slidingly receives the cylindrical end portion of a second boot segment, which is also of semi-rigid or non-flexible character. The sliding action of the second boot segment in the first boot segment results from the plunging action of the joint. The second boot segment also has a slot at its other end and this slot slidingly and sealingly receives an end portion of a third boot segment. The third boot segment, in turn, seals to a member of the mechanical joint.

Abstract: A head gasket assembly for closely adjacent cylinder bores and method of making the assembly. In the zone of adjacency of the combustion openings in the gasket assembly, part of the gasket body material is absent. Adjacent armoring is joined to form a bridge at the zone of adjacency. The armoring has wires which are substantially greater in thickness than the gasket body material. When the gasket assembly is pre-compressed and compressed in use, the wires in the zone of adjacency are deformed into sealing engagement with each other.

Abstract: An endless backup ring for hydraulic apparatus seal comprises a ring-like body having, a plurality of notches extending radially through a portion of the ring-like body and forming a staggered relationship in the circumferential direction between each others to enable said ring-like body to expand circumferentially when stretched.

Abstract: In a sealing device for a rotary machine of the type that an annular groove is provided in an inner circumferential surface of a through-hole of a stationary member through which a rotary body supported rotatably by a bearing device extends, gap spaces between the rotary body and the both side portions of the stationary member on the opposite sides of the annular groove are sealed by seal rings, and a seal fluid feed hole for feeding a sealing fluid into the annular groove is provided in the stationary member; improvements are made in that a vibration suppressing movable ring is accommodated within the annular groove, the movable ring is mounted to the stationary member so as to be movable only in a radial direction so that an outside annular gap clearance may be formed between an outer circumferential surface of the movable ring and an inner circumferential surface of the annular groove and also an inside annular gap clearance may be formed between an inner circumferential surface of an inner hole of the mov

Abstract: A sealing ring having at least one jacket face serving as a slide surface is produced of fibers and sliding agent that are passed to one another, with the fibers being relatively short fibers.

Abstract: A pair of beveled-face load rings between which is confined a seal ring sub assembly formed of segmented, polytetrafluoroethylene seals. The seals too have beveled faces which slidably engage the beveled faces of the load rings and, thereby, are prevented from manifesting undue wear and extrusion. Three seal segments of the seal ring assembly form an inner seal which is slidably supported on a land formed on a three-segment outer seal of the seal ring assembly. A circumferential spring urges the segments of the inner and outer seals inwardly into sealing engagement with a to-be-sealed shaft or the like. Locating pins fixed in, and extending from, the outer seal nestably engage the inner seal segments and restrain the latter against unwarranted circumferential displacement.

Abstract: A packer unit and packer insert adapted for use in an annular blowout preventer. The packer insert includes a generally longitudinal web with its leading edge facing the axial bore of the packing unit sloping from top to bottom in a generally radially outward direction.

Abstract: A gasket assembly having improved compression stoppers. The stoppers facilitate the rapid, easy and certain securance of the stoppers in a predetermined relationship in a gasket assembly. A gasket assembly, in accordance with this invention desirably comprises a main body having a pair of side sections, each comprising a self supporting core member and compressible facings fast with the core member and defining fastener openings through which fasteners are adapted to pass. The core members extend along the side sections of the gasket assembly, said facings and said core providing side sections of a first thickness. The main body further comprises end portions joining the side sections. Separate compression stoppers are provided in the fastener openings.

Abstract: A coiled spring includes a plurality of coils with each of the coils being interconnected with one another in a spaced-apart relationship and disposed in a preselected acute angle with the centerline of the coil spring for causing the coil spring to exert a constant force in a loading direction approximately normal to the centerline of the coiled spring in response to a deflection of the coil spring along the loading direction. When placed in an operative relationship with a sealing material, the resulting coil spring seal enables positive sealing between cooperating parts to prevent passage of fluid therepast, despite small changes in the spacing between the parts which may change due to eccentricity and part dimension, wear, temperature, or pressure effects.

Abstract: A high pressure sealing system is disposed between a housing and a reciprocating member. One version has a reciprocating plunger and in another version is a reciprocating piston associated with a free floating piston.

Abstract: Sealing joint between two housings (1, 2; 14, 15; 28, 29) connected by two orifices (7, 8; 9, 11; 31, 32) capable of being offset axially and/or radially, characterized in that it comprises two stays (18, 19; 33, 37), the first of which is provided with a packing means (21, 34) made of elastic material, intended to come up against one of the housings under axial compression, so as to provide a seal in the axial direction, while the second stay (19, 37) is equipped with a packing means (22, 36) made of elastic material, intended to bear on a surface of the second housing (14, 29) and working under radial compression, and in that the two stays (18, 19; 33, 37) are joined to one another by means of an elastic joint (24, 35) providing a seal between the stays and working under radial compression and/or axial shearing.

Abstract: A ring-like, radial, shaft-sealing element that is provided with a relatively rigid sealing member embodied as a molded member. The sealing member is spaced from a support member, and is connected to the latter via a spring member. Formed between the sealing member and the support member is a radially effective, free spring portion that, during a radial movement or wobble of a shaft that is to be sealed off, has a sufficient elasticity in order to allow the radial movement to be followed. The sealing member has a relatively great thickness that alone provides for the static and dynamic sealing of the sealing element. The sealing member is disposed in a recessed portion of the spring member, with this recessed portion being opened in the direction toward the end face of the spring member. The sealing member extends beyond this end face, with this projecting portion of the sealing member sealingly resting against the shaft.

Abstract: A seal for an anti-friction bearing, which bearing includes an outer and inner ring and rolling elements riding between them. At the inner ring, the seal includes an axially outwardly extending leg or membrane, the radially inward side of which carries two axially spaced apart sealing ridges which are resiliently biased against the inner ring for effecting a seal. In the above axial membrane, there is an additional membrane of smaller cross section formed by a radial constriction of that axial membrane between the two sealing ridges, which makes the support of the axially outward sealing ridge more flexible. The distance between the sealing ridges is at least equal to the axial clearance in the completed installed bearing.

Abstract: A steel laminate gasket comprises a plurality of thin steel plates to be stacked one after another, and devices for identifying the position of the steel plates formed on the steel plates where no sealing ability is affected. When the steel plates are stacked in the proper order, the devices form a stepped portion with different height relative to a predetermined horizontal plane of the gasket. Consequently, a user can notice the proper order of assembly of the gasket.

Abstract: A radially-sealing ring has a sealing element of a non-elastomeric plastic, preferably of PTFE, planar, annular disk having plane-parallel surfaces held at its outer circumference in a stiffening ring and cold flexed in the axial direction to form a cuff at its inner circumference which engages the shaft with bias. The disk has a thickness of from 0.3 to 0.8 mm and an inside diameter approximately 1.5 to 7 times its thickness less than the diameter of the shaft. The distance between the shaft and the line about stiffening ring where the disk is held is 2 to 7 times as great as the thickness of the disk. The radially-sealing ring is preferably for sealing the crankshaft of a two-cycle engine.

Abstract: A non-contact type seal device for a turbocharger in which lubricating oil is prevented from leaking into the compression chamber of the turbocharger over the entire range of rotational speeds thereof. The seal device of the invention includes a retainer mounted in a compression chamber of a housing of the turbocharger, a collar attached to a compressor wheel mounting portion of the rotor shaft of the turbocharger, and a ring provided on an inner peripheral surface of the retainer. An annular groove receiving the ring is formed in the outer peripheral surface of the collar. A first gap is formed between the outer peripheral surface of the collar and the inner peripheral surface of the retainer, while a second gap is formed between the inner surface of the annular groove and each of the inner and outer end surfaces of the ring. A threaded groove is formed in the inner peripheral surface of the retainer in opposition to the outer peripheral surface of the collar.

Abstract: A bearing sealing device comprises a middle ring having peripheral channel adapted to partially accommodate an annular sealing means that exerts a sealing action against a rotating member to be protected, and against the inner surface of the encircling casing within which the rotating member is located, and an lower ring which, by being urged against the middle ring, insures a sound tightness by virtue of the contact of one annular surface thereof with an opposing surface of the first annular element; a spacer means insertable into the first annular element, which spacer is retained in place by the lower ring. It is provided with a lower cylindrical recess partially accommodating a second annular seal which is adapted to exert a sealing action on the central shaft on which the rotating member being protected is mounted.

Abstract: A finger seal assembly for use between a stationary member and a movable member is formed of two overlapping metallic members having a solid portion at one end and having fingers at the other end, a layer of high temperature resistant cloth being positioned between said overlapping metallic members; said fingers of one metallic member being bent over the fingers of the other metallic member to hold said fingers together, and said solid portions of said metallic members being welded together, trapping said high temperature resistant cloth between said metallic members. High pressure acts on the inner metallic member to compress the high temperature resistant cloth.