Abstract: An assembly of fluid conduit parts is disclosed along with a method of assembling, a method of manufacturing and an apparatus for manufacturing the one of the fluid conduit parts. The assembly includes a blow molded part having a first portion. A second part includes a tapered section and a sealing flange extends from the first portion towards a central axis of the first portion at a distance, an end of the sealing flange defines an opening. The second part inserts into the opening and at least part of the tapered section is of a size larger than the opening. The sealing flange flexes upon insertion of the second part into the opening to define a contact surface between the tapered section and the sealing flange that extends around a perimeter of the tapered section where the sealing flange contacts the tapered section.

Abstract: The present invention relates to a packing structure for packing a gap between two bodies, and more particularly, to a packing structure which tightly seals a gap between two bodies and maintains the tight contact therebetween for a long time.

Abstract: A gasket for sealing a gap between a through hole formed on a wall body and a pipe to be inserted into the through hole, the gasket being provided for the pipe and made of tubular elastic material, the gasket having an inner circumferential lip portion which elastically contacts an outer circumferential face of the pipe; and an outer circumferential lip portion which elastically contacts an inner circumferential face of the through hole; an inner seal area on an inner circumferential side where the inner circumferential lip portion is provided is located at a position so that the inner seal area does not overlap in a radial direction with an outer seal area of an outer circumferential side where the outer circumferential lip portion is provided.

Abstract: It is disclosed an adapter device for a vacuum cleaner comprising a hollow tubular body comprising a first end configured to engage a part of the vacuum cleaner and a second end configured to engage an accessory or a flexible tube, wherein the hollow tubular body is at least partially of a deformable material with elastic return and comprises a ring protruding radially outwards from the external surface of the tubular body. The adapter device could comprise a plurality of rings protruding radially outwards from the external surface of the tubular body. The rings of the plurality of rings could have an increasing diameter.

Abstract: A node may be additively manufactured. The node may include a first surface and a second surface, and the second surface may bound a recess of the node. A structure may be inserted into the recess. A sealing member extend away from the second surface and contact the structure, such that a sealed space may be created between the node and the structure. An adhesive may be applied in the sealed space to at least partially attach the structure to the node.

Abstract: A pipe coupling includes a coupling segment having an inner surface defining a ring groove proximate to an axial end of the coupling segment, the ring groove comprising a groove bottom surface extending from a first end of the coupling segment to a second end of the coupling segment; and a pipe connection ring disposed within the ring groove, the pipe connection ring defining a body with two ring ends and an outer surface, the outer surface of the pipe connection ring contacting the groove bottom surface at a midpoint between the first end of the coupling segment and the second end of the coupling segment when the pipe connection ring is in an uncompressed condition. The pipe connection ring may be a split ring defining an opening between the two ring ends, which may be square, tapered, angled, or stepped.

Abstract: A pre-assembled pipe coupling (10) includes a gasket (200), a housing (12) surrounding the gasket, and a fastener (20). The housing has three segments sequentially coupled to each other to define an insertion boundary (11). A bridge segment (12c) has a first mount (18) extending lateral from the wall and having a plurality of first lateral walls defining a first aperture (22) and a second mount (18) having a plurality of second lateral walls defining a second aperture (22). A first clamp segment (12a) has a first hook (14) disposed in the first aperture. A second clamp segment (12b) has a second hook (14) disposed in the second aperture. The fastener is disposed through the first fastener aperture and the second fastener aperture. The fastener has an adjusted length at which the first clamp segment grips the gasket, and the second clamp segment grips the gasket to locate the first sealing lip and the second sealing lip within the insertion boundary.

Abstract: A pre-assembled pipe coupling (11) includes a gasket (200), a housing (12) surrounding the gasket, and a fastener (20). The housing has three segments sequentially coupled to each other to define an insertion boundary. A first segment (12c) includes a first mount (18) extending lateral in a first direction from the wall and having a plurality of first lateral walls that define a first aperture (22), and a second mount (18) extending laterally in a second direction from the wall, the second mount having a plurality of second lateral walls that define a second aperture (22). A second segment (12a) includes a first hook (14) disposed in the first aperture and a first tab (16) defining a first fastener aperture. A third segment (12b) includes a second hook (14) disposed in the second aperture and a second tab (16) defining a second fastener aperture. The fastener is disposed through the first fastener aperture and the second fastener aperture.

Abstract: A universal fluid system connector creates an airtight seal between a variety of smoke evacuation system receptacles and various hoses. The universal connector includes a body, a seal having a plurality of radially extending flexible fins, and a swivel. A plurality of fins on the seal are disposed along the length of the body with the outer edges of the fins forming a frustoconical shape. The fins also include one or more flexion zones of various stiffness and one or more flexible fin extensions. The fins deform against the inner wall of a receptacle and form an airtight friction fit between the universal connector and the receptacle, regardless of the taper angle, size, threads, or other features of the receptacle. The swivel facilitates rotational movement between the universal fluid system connector and an associated hose.

Abstract: A part of a gasket that conducts electricity across the otherwise nonconducting gasket. Versions of the insert provide an electrical connection when installed even if the parts sealed by the gasket deflect, and do not deform under compression due to their resilient nature. The gaskets can be used in pipe joints, among other uses, resulting in a pipe joint that conducts electricity between the pipe spigot and the socket of a pipe or fixture even if a deflection event occurs.

Abstract: A universal fluid system connector creates an airtight seal between a variety of smoke evacuation system receptacles and various hoses. The universal connector includes a body and a seal having a plurality of radially extending flexible fins. A plurality of fins on the seal are disposed along the length of the body with the outer edges of the fins forming a frustoconical shape. The fins also include one or more flexion zones of various stiffness and one or more flexible fin extensions. The fins deform against the inner wall of a receptacle and form an airtight friction fit between the universal connector and the receptacle, regardless of the taper angle, size, threads, or other features of the receptacle.

Abstract: A gripping element includes a body extending lengthwise from a first end to a second end. The body includes a first wall, a second wall extending from the first wall, and a third wall extending between the first wall and the second wall. The first wall, the second wall, and the third wall collectively define a hollow interior of the body. The body also defines an opening at each of its first and second ends. The opening at each of the first and second ends is in communication with the hollow interior of the body to permit an elastomeric material to be received within the opening at the first end of the body, within the hollow interior of the body, and within the opening at the second end of the body.

Abstract: A part of a gasket that conducts electricity across the otherwise nonconducting gasket. Versions of the insert provide an electrical connection when installed even if the parts sealed by the gasket deflect, and do not deform under compression due to their resilient nature. The gaskets can be used in pipe joints, among other uses, resulting in a pipe joint that conducts electricity between the pipe spigot and the socket of a pipe or fixture even if a deflection event occurs.

Abstract: A rough-in box used during the construction of buildings having poured concrete flooring, such as multi-story high-rise buildings. The rough-in box may be used to retain an opening in the floor through which plumbing and mechanical components may be installed after concrete has been poured around the device and hardens into a slab. The present invention also relates to a method comprising the steps of assembling the side walls of a box, placing a lid made of a material stronger than that of the side walls and capable of supporting a weight of 2,000 pounds, placing the box over a hole on the floor, and pouring concrete to form a floor around the box. The box will remain in place providing an accessible penetration through the flooring with space for plumbing connections and a flush surface with the floor over which pallet jacks and workers may travel without obstruction.

Abstract: An object is to provide a seal structure capable of reducing abrasion of a seal ring without increasing the number of components and of minimizing generation of abrasion powder. A seal structure to seal clearance between an outer peripheral surface 8a of a rotary shaft 8 and an inner peripheral surface 6a of a bearing housing 6 includes: a first seal groove 22A formed on the outer peripheral surface 8a of the rotary shaft 8; a second seal groove 22B disposed between the first seal groove and the impeller; a first seal ring 26 to be mounted to the first seal groove; and a second seal ring 28 to be mounted to the second seal groove.

Abstract: A modular hopper tee including a modified tee box, a tee box liner, a readily detachable inflow adapter for coupling a first pipe to the tee box and a readily detachable outflow adapter for coupling a second pipe to the tee box, the liner and adapters being constructed from an elastomeric polymer such as polyurethane. Each of the inflow and outflow adapters includes a flange portion and a cylinder portion extending through the flange portion, the flange portion dividing the cylinder portion into a first cylinder portion that extends through a sidewall opening of the tee box and sealingly engages the liner and a second cylinder portion that is located outside of the box. A metal cylinder member, which is embedded within the first cylinder portion and surrounds an exterior of the second cylinder portion, is provided for reinforcing the adapter.

Abstract: A pipe joint assembly including a first pipe element, a second pipe element, a pair of segments, each segment defining a first end and a second end, each first end comprising a tongue and each second end comprising a groove, each groove defining a groove shoulder surface, the tongue of the one segment defining a tongue outer surface, the tongue outer surface of the tongue of the one segment angled at a non-zero angle relative to the groove shoulder surface in an assembled and untightened position, the tongue outer surface of the tongue positioned parallel and flush to the groove shoulder surface of the groove of the second segment in an assembled and tightened condition; and a pair of fasteners configured to deflect each segment around the first pipe element and the second pipe element in the assembled and tightened condition.

Abstract: A pipe joint assembly including a first pipe element, a second pipe element, a pair of segments, each segment defining a first end and a second end, each first end comprising a tongue and each second end comprising a groove, each groove defining a groove shoulder surface, the tongue of the one segment defining a tongue outer surface, the tongue outer surface of the tongue of the one segment angled at a non-zero angle relative to the groove shoulder surface in an assembled and untightened position, the tongue outer surface of the tongue positioned parallel and flush to the groove shoulder surface of the groove of the second segment in an assembled and tightened condition; and a pair of fasteners configured to deflect each segment around the first pipe element and the second pipe element in the assembled and tightened condition.

Abstract: An end seal assembly configured to seal with a pipe. The seal assembly may include a cylindrical finned insert including an insert portion to be received in the pipe and a base portion at least partially facing the end face of the pipe, the insert portion having at least one annular fin extending radially outwardly, a pocket being formed between the at least one annular fin and the base portion, the at least one annular fin being deformable against the inner surface of the pipe; and a malleable annular end seal positioned near the pocket, the end seal being axially compressed between the base portion and the end face of the pipe and flowing around the end face to the inner surface of the pipe and into the pocket to inhibit fluid from passing from the inner surface of the pipe to the end face of the pipe.

Abstract: A sealing member is disclosed having an outer surface that supports segments of a pipe coupling for joining pipe elements in end to end relation. The segments are supported in spaced relation to permit the pipe elements to be inserted into the coupling without disassembly. The sealing member is a flexible ring that has conical lips around its inner circumference to engage and guide the pipe elements into the coupling. A tongue extends radially inwardly between the lips, the tongue having conical shoulders which engage and guide the pipe ends. The tongue locates the coupling segments relatively to the pipe elements.

Abstract: A screw connection device for connecting two pipes, comprising two pipes with flanged pipe ends, a screw, a nut, and a spacer, wherein the nut includes a receiving space, wherein the spacer is securely received in the receiving space. The spacer retains the first pipe securely in the nut, wherein the second pipe is retained in the screw and can be fastened in the nut by means of the screw. An exterior surface of the spacer has at least one cylindrical section, wherein the spacer has a first end surface and a second end surface. A first projection is provided on the spacer, which engages with the nut in the region of the receiving space such that it is securely accommodated therein. The nut includes an exterior surface with flat sub-surfaces. At least one flat sub-surface includes an indentation to form a detent in the retaining space to secure the spacer in the nut. In one form the exterior of the nut has six flat sub-surfaces and every other flat sub-surface has a detent.

Abstract: A method of coupling first and second pipe elements in end-to-end facing relationship includes obtaining a coupling, the coupling including an annular gasket, at least one segment, and a fastener, each segment being approximately semi-circular and including at least two ends, each end including at least one of a tongue and a groove, each tongue protruding circumferentially from at least one end, each groove defined circumferentially in at least one end; slipping the coupling onto the first pipe element beyond any groove proximate the end of the first pipe element; aligning the second pipe element in end-to-end facing relationship with the first pipe element; slipping the coupling onto the second pipe element such that the segments of the coupling straddle the ends of the first and second pipe elements; and engaging each fastener to deform each segment into contact with the outer surfaces of the first and second pipe elements.

Abstract: A joint structure for connecting lengths of pipe uses a plurality of teeth to engage the surface of at least one end of the adjacent lengths of pipe to connect the ends. A deformable member applies forces to the plurality of teeth to engage the surfaces. In an aspect, the plurality of teeth are releasable. In another aspect, the plurality of teeth are permanently engaged into the surfaces.

Abstract: Interlocking bend limiter sections are substantially mirror images of each other and are joined to form an interlocking bend limiter segment without use of fasteners by engaging each other's interlocking ends. An interlocking bend limiter comprises a plurality of interlocking bend limiter segment secured at an end by an end piece. In alternative, related embodiments a repair system comprises one or more machinable length sections which function as chain clamps to repair a subsea pipeline while the subsea pipeline is still in service and which can comprise interlocking sections similar to bend limiter sections or which are locked in more traditional manners such as by using bolts or other fasteners.

Abstract: An connector includes a terminated cable, a connector body defining a cylindrical terminal cavity configured to receive the terminated cable, and a cable seal axially surrounding a portion of the terminated cable. The cable seal defines a compliant primary sealing ring that is in compressive contact with an inner wall of the terminal cavity. The cable seal further defines an extended sleeve. The connector also includes a seal retainer that is inserted within a distal end of the terminal cavity and axially surrounds at least a portion of the extended sleeve. An inner surface of the seal retainer is proximate at least a portion of the extended sleeve and an outer surface of the seal retainer is proximate the inner wall of the terminal cavity.

Abstract: A system for dynamically sealing an opening through which at least one pipe, cable or duct extends via a conduit sleeve which is fittingly and sealingly fixed to the circumference of the opening or which corresponds to the opening. The system comprises at least an elastically deformable plug which is fittingly and sealingly insertable in the conduit sleeve. The plug has two ends, an outer side and an inner side. Each end has dimensions that allow for fitting of that end in the conduit sleeve. The outer side comprises a number of outer ribs having tops spaced apart in a longitudinal direction of the plug for realizing annular contact surfaces between the plug and an inner circumferential wall of the conduit sleeve. The inner side comprises a number of inner ribs having tops spaced apart in the longitudinal direction of the plug for realizing annular contact surfaces between the plug and the at least one pipe, cable or duct.

Abstract: A ring-shaped seal has projections on an outwardly facing surface in the form of tubes which have a longitudinal axis oriented perpendicular to a plane containing the ring. The seal is received within a channel defined by segments attached end to end forming a coupling for coupling pipe elements in end to end relation. The segments have pockets which receive the projections. The projections support the segments in spaced apart relation to allow the pipe elements to be inserted into the coupling without loosening or disassembling it. The projections deform when the segments are drawn toward one another by adjustably tightenable fasteners and allow the segments to engage and capture the pipe elements in end to end relation.

Abstract: Systems and methods for assembling a fuel filler system for use in a vehicle are provided. The fuel filler system includes a closure device assembly and a fuel filler tube. A circumferential rim extends radially outwardly from a first end of the fuel filler tube. The rim has a non-planar cross-sectional shape. The fuel filler system also includes at least one catch member that extends from an inner surface of the closure device assembly. A seal member encircles a portion of the closure device assembly, and is axially spaced apart from the at least one catch member. After the closure device assembly is coupled to the fuel filler tube, the circumferential rim is axially captured between the at least one catch member and the seal member.

Abstract: A valve is disclosed and can include a valve body having a central bore for passage of fluid there through and a longitudinal axis. The valve can also include a seal installed within the valve body along the central bore. The seal can include a first seal member having an annular ring portion and a hub portion extending from the annular ring portion. The seal can also include a second seal member including an annular ring configured to engage a distal end of the hub portion and create a sealing engagement between the hub portion and the annular ring when a compressive force is applied to the first and the second seal members.

Abstract: A system for providing a sealed transit for a situation wherein one or a plurality of cables, pipes or ducts (2) extend through the transit, wherein the system comprises a frame (100) which is sealingly fixed or fixable into or onto an opening, wherein the frame (100) comprises one or a plurality of conduits (203) which are each suitable for receiving at least one of the plurality of cables, pipes or ducts (2) and for receiving an elastically deformable plug (4) for sealingly filling space between an inner circumferential wall of the conduits (203) and at least one of the plurality of cables, pipes or ducts (2), when the system further comprises at least one blocking element (37) for hindering in each conduit (203) movement of one end of a plug (4) which is inserted in that conduit (203).

Abstract: A seal assembly (10) comprising a sealing body (40), a shoe (42), a first collar (44), and a second collar (46). The shoe (42) is positioned within a space defined by radially inner surfaces of the sealing body (40), the first collar (44) is positioned on a first axial side of the sealing body (40), and the second collar (46) is positioned on a second axial side of the sealing body (40). These components (40, 42, 44, 46) collectively form inter-component sealing surfaces, pocket sealing surfaces, gate sealing surfaces and/or part sealing surfaces which prevent the infiltration of outside fluid into, and the escape of operative fluid from, a fluid coupling.

Abstract: The present invention provides a gasket for glass or resin syringes which is laminated with an inert resin film and is excellent in plugging properties, liquid-tightness, and slidability. The gasket laminated with an inert resin film has multiple circular ribs that are to be in sliding contact with an inner wall of a syringe barrel, wherein the circular ribs include a front circular rib having a sliding contact portion whose cross section has a diameter that expands substantially linearly toward a back end of the syringe barrel, the linear portion has a length of 10 to 55% of the length of a sliding side face of the gasket, and the diameter of the linear portion which expands substantially linearly toward a back end of the syringe barrel has a diameter expansion ratio X between a minimum diameter r (mm) and a maximum diameter R (mm) of 0.1 to 8.0%.

Abstract: Coupling devices for joining pipe ends include annular gaskets. Example gaskets include pipe interface profiles for sealing performance and manufacturability.

Abstract: A number of devices (floor grommets) for providing an air seal of an aperture through which one or more cables or conduits pass are disclosed. The devices (1, 90) include a frame (6) and at least first and second opposing sealing members (91, 92) defining sealing faces mounted in the frame. At least one of the sealing members (91, 92) is movable between a position in which the aperture is substantially closed and a position in which the aperture is substantially open. The sealing members (91, 92) comprise resilient flexible compressible foamed plastics or polymeric material or the like. The sealing members provide a substantial air seal across the frame opening in use with said resilient flexible compressible foamed plastics or polymeric material forming the sealing members deforming and conforming around any cables or conduits or the like extending through the frame.

Abstract: A system for providing a sealed transit for a situation wherein one or a plurality of cables, pipes, or ducts extend through the transit, wherein the system comprises a frame which is sealingly fixed or fixable into or onto an opening, wherein the frame comprises one or a plurality of conduits which are each suitable for receiving at least one of the plurality of cables, pipes or ducts and for receiving an elastically deformable plug for sealingly filling space between an inner circumferential wall of the conduits and at least one of the plurality of cables, pipes or ducts, wherein the system further comprises at least one blocking element for hindering in each conduit movement of one end of a plug which is inserted in that conduit.

Abstract: An annular seal for use in sliding or translating applications is provided. An annular can comprises a metallic material formed into a ring. One or more ribs are disposed about an inner surface or an outer surface wall of the ring where the ribs provide a sliding sealing surface smaller having a reduced contact area relative to the width of the ring wall. The sliding sealing surface provides a seal against one or more sliding members. The rib-wall structure forms a circular beam providing greater structural integrity to the seal than would otherwise be possible.

Abstract: A seal assembly includes a tubular member having a longitudinal axis and a tubular member seal profile. A metal seal ring having a proximal base and a distal end has a seal ring seal profile between the proximal base and distal end that contacts the tubular member seal profile. A distal annular recess is in one of the seal profiles, the distal annular recess being spaced axially from the distal end of the seal ring, defining a seal surface between the distal end of the seal ring and the distal annular recess that engages a seal surface of the tubular member seal profile. The contacting portions of the seal surfaces form a metal-to-metal seal area. A proximal annular recess in one of the seal profiles is spaced axially from the distal annular recess, defining a support area axially spaced from the metal-to-metal seal area.

Abstract: A seal for a perpendicular plug feed-through is disclosed for electrically contacting a control device which is arranged within a housing. The seal includes a sealing piece which has at least one sealing lip and which is surrounded by a guiding piece. The sealing piece has at least one sealing lip, which is designed in a circumferential manner or in alternating segmentation and which has a slope declining in the radial direction towards the outside.

Abstract: A high pressure seal assembly configured for sealing contact with an opposing surface. The seal assembly comprises an annular seal body with a sealing surface on one side of the seal body. An end of the sealing surface includes a sealing face for sealing contact with the opposing surface. The sealing surface also includes at least one support point that contacts the opposing surface when the seal is placed in sealing contact. Strategically positioning the support point on the sealing surface selectively adjusts the sealing contact stress between the sealing face and the opposing surface.

Abstract: A crown-type probe seal for a female hydraulic coupling member has one or more pressure-energized seals for sealing between the probe seal and the body of the coupling member which retains the probe seal. The generally ring-shaped probe seal has one or more annular fluid chambers in the wall of the seal's body. Each annular fluid chamber is open to the outer circumference of the probe seal. Hydraulic fluid under pressure may enter an annular fluid chamber through its opening and exert a generally radial force as a result of a pressure differential. This radial force can act to increase the sealing effectiveness of the probe seal both to the body of the coupling member retaining the probe seal and to the probe of a male coupling member inserted in the receiving chamber of the female member.

Abstract: The invention relates to the external sealing and joining of piping. More particularly, the invention provides an improved seal profile which is suitable for use inside pipe couplings. The invention provides a twin-lip seal profile particularly useful in combination with a pipe coupling, the seal comprising: a substantially flat base element, having a first (inner) face and a second (outer) face and two outer edges. Two spaced-apart support blocks projecting upwardly from the first face of the base element, each support block having an outer and an inner face. Two lip members projecting from the outer edges of the base element, the lip members overlapping and resting on the closest support block and leaving a hollow space between the base element, the lip member and the outer face of the support block.

Abstract: A crown-type probe seal for a female hydraulic coupling member has one or more pressure-energized seals for sealing between the probe seal and the body of the coupling member which retains the probe seal. The generally ring-shaped probe seal has one or more annular fluid chambers in the wall of the seal's body. Each annular fluid chamber is open to the outer circumference of the probe seal. Hydraulic fluid under pressure may enter an annular fluid chamber through its opening an exert a generally radial force as a result of a pressure differential. This radial force can act to increase the sealing effectiveness of the probe seal both to the body of the coupling member retaining the probe seal and to the probe of a male coupling member inserted in the receiving chamber of the female member.

Abstract: A cast-in-place gasket is provided for an associated pipe joint. The gasket is mounted to a first associated pipe and adapted to provide a seal between the first associated pipe and a second associated pipe. The gasket includes a gasket body formed into an annulus from a resilient material. A first sealing head and a second sealing head protrude from the body in an axially rearward and radially inward direction. The first sealing head is axially spaced from the second sealing head. Each of the first sealing head and the second sealing head include a sealing surface. A first mounting foot and a second mounting foot protrude from the body in a radially outward direction. The first mounting foot is axially spaced from the second mounting foot. An open annular cavity is defined in the body between the first sealing head and the second sealing head. A first lip protrudes from the body proximal to a base of the first sealing head and extends in an axially forward and radially inward direction.

Abstract: The present invention provides a sealing ring having at least eight sealing edges. Sealing rings, such as O-ring seals, are generally known. These universal sealing rings can be used for statically or dynamically sealing machine elements. They have the advantage of being suited for a wide variety of possible applications, and of being simple and cost-effective to manufacture.

Abstract: A system for sealing a space (16) between an inner wall (6) of a tubular opening (7) and at least one tube (17) or duct at least partly received in the opening (7), wherein the system comprises at least two segmental longitudinal parts (1) for forming a sealing plug (5) which can be received in the said space (16), wherein the longitudinal parts (1) are each provided with an outside (2) provided with a number of outer ribs (3) for realizing, in use, contact surfaces (4) closed upon themselves between the sealing plug (5) and the inner wall (6) of the opening (7), and wherein, further, each of the longitudinal parts (1) is provided with an outer collar (9) intended to be placed against an outer edge of the opening (7) in use, and wherein, further, the outer ribs (3) each substantially have the shape of a sawtooth (11) with rising surface (12).

Abstract: A gasket and a piping system using the gasket are disclosed. The gasket has an o-shaped body including an inner diameter and an outer diameter. The gasket further may include at least one gasket retaining bar attached to the body that bar prevents the gasket from being displaced while the spigot is being inserted into the gasket. The gasket may also include at least one restraining device attached to the body. The restraining device has at least one edge that extends beyond the inner diameter of the body of the gasket to engage the spigot.

Abstract: A novel gasket includes at least one gripping element embedded in an annular member for forming a seal between two tubulars. For tubulars having socket and spigot ends, the gripping element includes teeth for gripping an outer surface of the spigot end and a blunt tooth for contacting a front wall of the socket end. The blunt tooth rolls along the front wall during relative movement between the tubulars and can include a contacting face of a specialized geometry to adjust contact dynamics and/or roughened surfaces to increase the frictional contact between the blunt tooth and the front wall. The embedded element can also include at least four teeth arranged such that no more than two teeth normally grip the outer surface of the spigot end. One or more teeth can also include a transverse groove to enhance penetration into the outer surface of the spigot end.

Abstract: A sealing assembly for forming a seal about an elongate object includes a resilient seal member and a loading mechanism. The resilient seal member includes an inner wall surface defining a channel to receive the elongate object. The seal member has first and second opposed sides. The loading mechanism includes a first pressure member on the first side of the seal member; a second pressure member on the second side of the seal member; a biasing member on the second side of the seal member and interposed between the seal member and the second pressure member; and an adjustable displacement mechanism accessible and operable from the first side of the seal member to displace the first and second pressure members relative to one another to selectively apply a compressive load to the seal member such that the inner wall surface is expanded inwardly to exert a sealing pressure on the elongate object.

Abstract: A sealing unit with a mounting error preventing construction, includes a cylindrical member and an annular sealing member mounted in a circumferential groove formed on an outer circumference of the cylindrical member. At least two projections having different sizes are provided on the sealing member asymmetrically with respect to an axis of the sealing member and are projected in a direction in which the axis extends. Cutout portions for receiving the projections are provided on the cylindrical member.

Abstract: An oil seal for preventing oil leakage and adapted to fit a shaft comprises an annular casing, a first seal component, a second seal component, a first seal lip and a second seal lip. The annular casing has a hole provided for the shaft passing through the annular casing. The first seal component is mounted on the annular casing. The second seal component is mounted on the annular casing and used for preventing a lubricating oil leaking from the first seal component. The first seal lip is disposed on the first side of the annular casing and used for preventing the lubricating oil leaking from the first side of the annular casing. The second seal lip is disposed on second side the annular casing, the second side is opposite to the first side, and the second seal lip used for preventing the dust from entering the oil seal.