Abstract: A metal O-ring is provided. The metal O-ring has a sidewall with an outer surface and an inner surface. The outer surface of the sidewall is machined to selectively thinning the thickness of the sidewall, such that the sidewall of the of the metal O-ring has a plurality of thicknesses equal to or less than a maximum thickness and equal to or more than a minimum thickness. Selectively thinning the sidewall by machining the outer surface allows for control of the elasticity of the metal O-ring. Controlling the elasticity of the metal O-ring, and potentially increasing the spring back, may provide for increased contract pressure at a sealing interface, which would facilitate sealing. The machined outer surface of the metal O-ring are generally machined to flat surfaces.

Abstract: A bladed assembly for a turbine of a turbomachine comprises an outer platform comprising, at an axial end, a transverse end surface and a sealing device protruding from the transverse end surface and comprising at least two sealing ribs (102) extending transversely to an axis of the bladed assembly and each having two respective sides which, in an axial cross-section, are radially and axially inclined in the same direction with respect to the axis. The radial direction of the inclination of the sides of the sealing ribs, in an axial cross-section, is the same for at least two of the sealing ribs. This particularity confers flexibility on each of the sealing ribs, which allows to favour a surface contact between the sealing ribs and a radial stator wall facing which the transverse end surface, and in particular the sealing device, are intended to be arranged.

Abstract: Fixation apparatus for releasably securing a fixation structure to an airway tube of an artificial airway device is provided, the apparatus (1) being adapted to allow captive axial movement thereof relative to the airway tube (3) in a release position, and to substantially prevent axial movement thereof relative to the airway tube (3) in a secured position.

Abstract: A pipe coupling assembly for coupling a first end portion of a first pipe with a second pipe includes a socket formed on an end of the second pipe and a locking ring. The socket includes a rim defining an end opening through which at least a portion of the first end portion is inserted, the rim including a rim sealing surface adapted to form a liquid-tight seal around the first end portion. The socket also includes a sleeve portion having an exterior surface and an interior surface defining an interior space for receiving the first end portion, the interior surface comprising at least two socket sealing surfaces adapted to form a liquid-tight seal around the first end portion. The locking ring is adapted to cause the rim sealing surface to compress to form a liquid-tight seal around the first end portion.

Abstract: A duct interface system and method includes a duct having a first end and a second end; a first receptacle for the first end of the duct and/or a second receptacle for the second end of the duct; and one or more first seals between the first end of the duct and the first receptacle and/or one or more second seals between the second end of the duct and the second receptacle.

Abstract: An air-to-air aftercooler (ATAAC) configured to cool compressed air from an air compressor is disclosed. The ATAAC may comprise a header at a cold end, and a plurality of core tubes. Each of the core tubes may have a first end and a second end. The ATAAC may further comprise a plurality of grommets each connecting the second end of one of the core tubes to a slot of the header. Each of the grommets may include an inner surface contacting the core tube and an outer surface contacting the slot of the header. The inner surface of the grommet may include radially-inwardly projecting regions contacting the core tube, and depressed regions providing clearance between the grommet and the core tube.

Abstract: A tube seal includes a cylindrical tube and an elastomeric seal body molded to the cylindrical tube. The elastomeric seal body includes a pair of seal lip regions extending from opposite ends of the rigid cylindrical tube and inserted into a respective bore of a pair of opposing members for providing a sealing relationship there between. The seal lip regions each include, in an unassembled condition, an axially extending seal lip and a radially outwardly extending seal lip connected to the ends of the rigid cylindrical tube by an elastomeric hinge region.

Abstract: An elastomeric press-in-place swivel fitting adaptor and a swivel fitting assembly using the adaptor are disclosed herein. The swivel fitting assembly includes retention and sealing features that allow it to be installed in a threaded port by hand. It is suitable for use in a variety of low pressure fluid passage and venting applications.

Abstract: The present invention concerns a seal comprising a front fitting (1, 21, 41), a rear fitting (2, 22, 42) and a compressible part (3, 23, 43). The compressible part (3, 23, 43) is placed between the front fitting (1, 21, 41) and the rear fitting (2, 22, 42). The seal is a transition for a conduit through a wall (16), wherein the conduit is received in a central through opening of the seal and wherein the seal is received in an opening of the wall (16). In a mounted seal the compressible part (3, 23, 43) seals inwards against the conduit and outwards against an inner surface of the opening of the wall (16). The axial extension of the compressible part (3, 23, 43) is larger than the thickness of the wall (16) at the opening of the wall (16).

Abstract: Systems, devices and methods for pipe connectors and associated components are disclosed. Features for no hub clamps, for locking mechanisms on no hub clamps, for tools for no hub clamps, and for gaskets are described. The gaskets may be hourglass-shaped or otherwise taper outward near the ends to facilitate assembly onto pipe ends and that compress inward when a clamp is secured over the gasket. The gaskets may reduce in circumference at the gasket ends upon contraction of the gasket by a clamp onto two pipe ends. The gaskets may include collapsible sections that collapse upon contraction of the gasket by a clamp onto two pipe ends.

Abstract: To achieve high waterproofness, a grommet that is attached so as to cover a shield pipe and a corrugated tube so as to bridge therebetween includes a pipe-side end portion that is formed in a tubular shape capable of being sealingly connected to an outer circumferential side of the pipe, and a corrugated-side end portion that is formed in a tubular shape capable of being sealingly connected to an outer circumferential side of the corrugated tube. A plurality of sealing lips that closely contact to an outer surface of the shield pipe are formed on an inner surface of the pipe-side end portion. The sealing lips are disposed inside and outside a width region W that is fastened by a fastening band disposed on an outer surface of the pipe-side end portion.

Abstract: To achieve high waterproofness, a grommet that is attached so as to cover a shield pipe and a corrugated tube so as to bridge therebetween includes a pipe-side end portion that is formed in a tubular shape capable of being sealingly connected to an outer circumferential side of the pipe, and a corrugated-side end portion that is formed in a tubular shape capable of being sealingly connected to an outer circumferential side of the corrugated tube. A plurality of sealing lips that closely contact to an outer surface of the shield pipe are formed on an inner surface of the pipe-side end portion. The sealing lips are disposed inside and outside a width region W that is fastened by a fastening band disposed on an outer surface of the pipe-side end portion.

Abstract: A seal ring, a method of providing a fluid seal and end fitting are disclosed. The seal ring which provides a fluid seal between a polymer layer and an end fitting of a flexible pipe comprises an annular body that has a cross section comprising a first arm portion (500) and further arm portion (510) extending in a spaced apart relationship away from a body end portion (530).

Abstract: A fitting is provided that may optionally be pulled-up to its final assembled condition by torque rather than by turns. In one embodiment, at least one fitting component includes a structure that facilitates pull-up by torque. The structure may take a wide variety of different forms.

Abstract: A vacuum adapter for feeding-through vacuum-insulated coolant lines (11, 12, 22, 23) from the surrounding atmosphere into a vacuum processing installation has an intermediate volume (2) which is connected firstly to at least one insulation intermediate space (32, 33) of the vacuum-insulated feed lines and secondly to a vacuum pump. The pump capacity is available at least temporarily for evacuating the insulation intermediate space around the coolant lines (22, 23).

Abstract: Provided herein are exemplary connector assemblies including a conduit body having a conduit inner surface opposing a conduit outer surface, at least a portion of the conduit inner surface being a threaded portion. The connector assemblies may further include a compression ring extending from a first circumferential end to a second circumferential end, wherein the first circumferential end is complementarily engageable with the second circumferential end, wherein the compression ring includes a first axial end and a second axial end, and wherein the compression ring has a circumferential gap between the first circumferential end and the second circumferential end in an uncompressed configuration. The connector assemblies may further include a bushing positioned within the threaded portion of the conduit inner surface of the conduit body.

Abstract: An object is to reduce loss of exhaust gas by improving a surface roughness to enhance efficiency of a turbocharger and to reduce generation of a crack due to thermal fatigue to improve durability, as well as to ensure rigidity to prevent exhaust-gas leakage to outside. A turbine housing accommodates a turbine wheel rotated by exhaust gas taken in from an engine and includes a scroll part having a scroll shape and forming, on a radially-inner side, an exhaust-gas flow passage. The turbine housing includes: a casted exterior member forming an opening portion accommodating a back-face member attachable and detachable in an axial direction of the turbine wheel; and a sheet-metal interior member disposed inside the exterior member via a predetermined clearance part from the exterior member and forming the scroll part. The interior member is configured to be attachable and detachable with respect to the exterior member through the opening portion.

Abstract: The present invention relates to a downhole expandable metal tubular to be expanded in a well downhole from a first outer diameter to a second outer diameter to abut against an inner face of a casing or borehole, the downhole expandable metal tubular having an outer tubular face and a longitudinal extension and comprising a first circumferential edge and a second circumferential edge provided on the outer tubular face and having a distance along the longitudinal extension, and a circumferential sealing element being arranged between the circumferential edges, wherein the downhole expandable metal tubular further comprises: a circumferential resilient element having an outer face part facing away from the outer tubular face and having an extension along the longitudinal extension, the extension of the circumferential resilient element being smaller than the distance, a space arranged adjacent to the circumferential resilient element in the longitudinal extension, and a first portion of the circumferential seal

Abstract: A drainage pipe fitting includes a cuff that permits the fitting to be coupled with pipes or fittings of various sizes. The cuff includes a plurality of sloped surfaces. For example, the cuff may include a first set of sloped surfaces and a second set of sloped surfaces on an interior of the cuff for receiving different-sized pipes or fittings on the interior of the cuff. The cuff may also include a third set of sloped surfaces, a fourth set of sloped surfaces, and a fifth set of sloped surfaces on an exterior of the cuff for receiving further pipes or fittings of different sizes on the exterior of the cuff. If desired, the cuff can include more or less sets of sloped surfaces. In some cases the sloped surfaces are arranged on internal and external fins of the cuff.

Abstract: An earth-boring tool includes a tool body having an aperture therein defining a nozzle port, a nozzle or nozzle assembly disposed in the nozzle port, and a shape memory material disposed adjacent a surface of at least one component of the nozzle or nozzle assembly. The shape memory material retains at least one component of the nozzle or nozzle assembly by a threadless connection. The threadless connection includes mechanical interference between the shape memory material, the at least one component of the nozzle or nozzle assembly, and the tool body or another component of the nozzle or nozzle assembly. The shape memory material is formulated and configured to transform from a first phase and a first shape upon heating and to transform from a second phase and a second shape upon cooling.

Abstract: A coupling device for coupling to a fluid line includes a coupler body having an end portion with a threaded outer surface and a conical inner surface. A fastener threadedly engages the threaded outer surface of the coupler body. A ferrule includes a rotational driving portion and a clamping portion having a threaded inner surface. When a tube is inserted through the ferrule and the fastener and into the end portion of the coupler body, the fastener threads onto the coupler body and the conical inner surface of the coupler body engages an outer surface of the clamping portion of the ferrule to substantially clamp the clamping portion of the ferrule around the tube. With the fastener tightened, the ferrule is rotatable relative to the fastener and the coupler body and the tube, whereby rotation of the ferrule moves the tube further into the coupler body.

Abstract: A guide and protection bushing assembly is mountable in a well production system (e.g., a subsea tree) having an intervention member (e.g., a blowout preventer). The assembly guides a string of components to a cable hanger sealing surface disposed in the production system without damaging the sealing surface. The assembly includes a body having a first end engaging an intervention member, a second end engaging the production system, an outer surface, and an inner through passage that expands radially at the first end to form a funnel shape. In some embodiments, the assembly may further include rollers, leaf springs, or a protective sleeve coupled to biasing members, a plurality of centering disks having a plurality of flexible flaps separated by spacers, and/or centering devices with fins separated by spacers.

Abstract: The present invention is directed to an enclosure for protecting a cable connection. The enclosure includes a sealing member contained within an inner shell. The sealing member is secured around the cable connection by slideably engaging a rigid outer shell over the inner shell. The inner shell has an external topography defining an inner shell profile and wherein the outer shell has an internal topography defining an outer shell profile such that the outer shell profile is similar to the inner shell profile.

Abstract: An apparatus and method for sealing pipes or underground structures is provided. In one embodiment, the end of a pipe is sealed by the use of a pipe liner and a sealing member. The sealing member may be a hydrophilic material, a hydrophobic material, a compressible material, or a paste. The sealing member is held in place by a mechanical fastener and a liner is installed adjacent the sealing member and against the wall of the pipe or other structure to be sealed. In another embodiment, a manhole is sealed by the use of a sealing member, a mechanical fastener, and a manhole liner.

Abstract: A seal body 24 is formed annularly to have a fitted/fixed portion 25 airtightly fitted and fixed to a shoulder 22 in a turbine housing 1 formed facing a scroll passage 8 and have a clearance facing portion 27 facing an outer periphery of a turbine-housing-side exhaust introducing wall 9a with a clearance S, the clearance facing portion 27 being caused to be pressed against the exhaust introducing wall 9a due to a difference in fluid pressure between the clearance S and the scroll passage 8. Slipout preventive means 29 is formed on the fitted/fixed portion 25 of the seal body 24 for preventing the fitted/fixed portion 25 from slipping out of the shoulder 22.

Abstract: Apparatus and methods for temporarily sealing a pipe including apparatus and methods for creating a temporary airtight seal at the open end of a pipe in a plumbing or refrigeration system. One such apparatus includes a body, grommet, washer, and a nut. Multiple airtight seals are created including a first primary seal between an exterior of the pipe and the grommet and a secondary seal between the open end of the pipe and the washer. The grommet does not require teeth and the apparatus does not require adhesive, sealant, or any other type of similar materials. Use of the apparatus and methods greatly minimizes and/or eliminates the potential for marring or otherwise distorting the open end of the pipe, thereby facilitating reuse of same.

Abstract: A holding sealing material includes a laminate of a plurality of mats and a film. The plurality of mats each include inorganic fibers and have a rectangular shape in a plan view. The plurality of mats are arranged in an order of longitudinal length from a shortest longitudinal length to a longest longitudinal length. The film is provided around a longest mat having the longest longitudinal length among the plurality of mats. The longest mat has a first main surface and a second main surface which is on a side opposite to the first main surface and which is in contact with a second longest mat. The film is adhered to the first main surface and longitudinal side surfaces of the longest mat and is adhered to the second main surface to allow the second main surface to be partly exposed.

Abstract: One aspect of the invention provides a bushing including a first annular internal rib adapted and configured to engage a corrugation valley of corrugated tubing and a second annular internal rib adapted and configured to press against a conductive layer surrounding the corrugated tubing. The second annular internal protrusion has a rounded, substantially non-piercing profile. Another aspect of the invention provides a sealing device for connecting a length of tubing. The sealing device includes a body member defining a sleeve portion and the bushing as described herein adapted and configured to be received in the sleeve portion. Another aspect of the invention provides a length of tubing including: an inner tubing layer and the fitting as described herein engaged with the inner tubing layer.

Abstract: A universal bushing is described herein. The universal bushing can include a base member and a first bushing member. The base member can include at least one outer portion and at least one inner wall that forms a first cavity, where the at least one inner wall has a perimeter that is substantially uniform along a first height of the at least one inner wall. The first bushing member can be removeably coupled to the base member and disposed within the first cavity, where the first bushing member includes at least one first wall having a first inner surface that forms a second cavity and a first outer surface, where the at least one first wall has a first inner perimeter that is substantially uniform along a second height of the at least one first wall, and where the first outer surface forms a first outer perimeter.

Abstract: A cylindrical gasket includes a reinforcing member 70, a heat-resistant material 71, and pores which are dispersedly distributed in the reinforcing member 70 and the heat-resistant material 71, the reinforcing member 70 and the heat-resistant material 71 are intertwined with each other so as to be provided with structural integrity, and with respect to a total volume of the cylindrical gasket, the reinforcing member 70 occupies a volume of 32 to 60%, the heat-resistant material 71 occupies a volume of 5 to 58%, and the pores occupy a volume of 10 to 35%.

Abstract: A grommet for insertion into an opening of a radiator header plate may have a cylindrical outer surface having a body outer diameter, an annular shoulder proximate a top surface and extending outwardly beyond the outer surface of the body, and an annular bead proximate a bottom surface of the body and extending outwardly beyond the outer surface of the body and have a bead outer diameter that is greater than the body outer diameter. The annular bead may include a tapered bottom portion having a decreasing outer diameter as the tapered bottom portion extends downwardly toward the bottom surface of the body, with the tapered bottom portion terminating with a bottom outer diameter that is less than the body outer diameter.

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: An annular sealing element to seal between metal surfaces for use in flanges, joints, packers and the like, located in oil and gas exploration and production equipment. The sealing element has inner and outer metal deformable surfaces joined at ends, defining an interior volume which is entirely filled with a plastic deformable material. The surfaces are arranged such that on compression of the element from the ends, the element will deform in a controlled manner on a cantilever principle. The volume of filler and the interior volume remain substantially equal during compression so that delamination does not occur. Thus the sealing element provides a seal combining the flexibility of elastomer seals with the integrity of a metal to metal seal.

Abstract: A pipe coupling for coupling adjacent ends of a pair of pipes includes a sleeve, a split-ring gland positioned around one of the ends of the sleeve, and at least one annular gasket positioned within the split-ring gland and configured to be compressed by the split-ring gland for sealing one pipe end to the sleeve. The split-ring gland includes two partially circular gland members with spaced ends defining a gap. The pipe coupling includes an armor positioned to span the gap between the spaced ends to provide a generally closed annular periphery about the gasket. The armor includes a corrugated portion having a plurality of corrugations engaging the split-ring gland and the gasket during compression of the gasket. The armor is cold formed to improve structural strength and durability.

Abstract: The present invention is to provide a connector seal allowing an accurate inspection of presence of an incorrectly formed bore in a terminal insertion bore of the connector seal. A connector seal includes a seal main body and a plurality of terminal insertion bores. Each terminal insertion bore has an upper membrane potion and a lower membrane portion, which are spaced one another and interconnected together with a lamella. Preferably, the terminal insertion bore has a membrane, which includes a substantially curved groove and a substantially curved lamella. Preferably, the terminal insertion bore has a membrane which includes a lamella, the lamella being oriented in a direction coincident with a diagonal line of a rectangular cross-section of a terminal so that corners of the terminal hit opposite ends of the lamella.

Abstract: A seal for a plug connector arrangement having a plug which is intended to latch into a standard socket in a releasable manner, wherein the seal is formed with a latching suppression means for permanently preventing the plug from latching in and with a pushing means for pushing the plug, which is not latched in, into its standard contact position.

Abstract: Provided is a coupler including two or more shell segments, each pivotally coupled at a pivot end to a rigid link, and being securable to one another at a locking end thereof by a locking mechanism, each shell segment is configured with a complimentary tubular element seat and at least a pair of substantially parallel radial tubular element engagement formations, and an annular gasket seat, where the two or more shell segments are pivotable between a closed position in which they complete a substantially closed shape, and an open position where at least one of the two or more shell segments is pivotally displaced with respect to the link and apart from one another.

Abstract: A sealing mechanism for a drop cable splice enclosure includes a base having an entry hole for receiving a drop cable inserted through a compression grommet assembly, from outside the enclosure. The cable can be prepared for splicing, outside the enclosure. The grommet assembly (and the optionally prepared cable) are inserted into the entry hole, from outside the enclosure. The assembly includes upper and lower pressure plates, a compressible grommet between them, and an adjustment mechanism to apply a compression force to the grommet. The grommet assembly is rotatable to lock it in a keyed section in the entry hole. The adjustment mechanism is then tightened, from outside the enclosure, to compress the grommet between the pressure plates, which seals the grommet in the enclosure base, at the same time sealing the cable in the passageway through the grommet.

Abstract: An adjustable seal for coupling a plumbing fixture to a waste outlet includes a member, a flexible sleeve, and a modular spacer. The flexible sleeve is operable to be connected to an upper surface of the member. The modular spacer is operable to couple the modular spacer to the member.

Abstract: For sealing a threaded connection, a tubular thread seal includes a proximal edge with a specified proximal diameter and a distal edge with a specified distal diameter. The distal edge is inserted over a threaded connection. The tube is disposed between the proximal edge and the distal edge.

Abstract: The present invention is directed toward a sealing assembly in a cable drop system. The sealing assembly includes a base mounted to a network cabinet and a cover hingedly connected to the base. The sealing assembly also includes a lower sleeve and an upper sleeve. The lower sleeve and the upper sleeve wrap around the cables passing through an opening in the cable drop system. The lower sleeve includes a top portion and a bottom portion. The bottom portion of the lower sleeve is connected to the base and the upper sleeve is positioned around the top portion of the lower sleeve to form the sealing assembly.

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: The invention relates to a sealing element (1) for sealing between an electric line (2) and a housing (100). In order to provide a sealing element (1) for a plurality of different line diameters, provision is made according to the invention for the sealing element (1) to have an elastically expandable inner sleeve (5) which has, in an axial direction (X) of the sealing element (1), a passage opening (4) for the line (2) which has at least one inner sealing surface (6a, 6b) extending along its inner periphery (6), an outer sleeve (10) surrounding the inner sleeve (5), which outer sleeve has at least one outer sealing surface (11a, 11b) extending along its outer periphery (11), and comprises at least one compensation section (7a-d) which is designed to be compressible in a radial direction (Y, Z) of the sealing element (1) and has a yieldingness which is greater than the yieldingness of the outer sleeve (10).

Abstract: When a sealing member held in a cavity of a housing is pressed by a cap toward the bottom of the cavity, the side surface of the sealing member is inclined to laterally expand. As a result, in the opening-side portion of the sealing member, the side surface is strongly pressed on the wall surface of the cavity, causing a strong friction force at the contact surface, which prevents the pressing force applied from the opening side from being transmitted to the bottom side. Therefore, at the beginning of the pressing operation, the internal stress of the sealing member is higher in the opening-side portion than in the bottom-side portion. With the lapse of time from the beginning of the pressing operation, the opening-side portion of the sealing member under the higher internal stress gradually moves toward the bottom side against the friction force.

Abstract: Disclosed herein is a sealing structure for an integrated hydraulic control system to integrate a first hydraulic control system to control brake hydraulic pressure, the first hydraulic control system having a modulator block, in which the hydraulic pressure line to supply brake hydraulic pressure to wheel cylinders of a vehicle is formed, and a second hydraulic control system connected to the first hydraulic control system, wherein the first and second hydraulic control systems are coupled to each other each other in a surface contact fashion such that the hydraulic pressure line formed in the modulator block of the first hydraulic control system communicates with a hydraulic pressure line formed in a modulator block of the second hydraulic control system to form at least one through channel, and a hollow channel connection seal to block leakage of the brake hydraulic pressure outside is provided in the through channel.

Abstract: Expandable seals have one or more conforming ribs to facilitate creation of a seal to a sealing surface disposed in the well. The conforming ribs comprise a core of material either capped, partially covered by, or entirely covered by a ring. The ring can be formed of a metal that is softer than the metallic core material of each rib. Suitable metals forming the rings include copper formed by metal spun methods. Disposed adjacent to the rings are one or more sealing elements. By moving the rings into the sealing surface during expansion of the expandable seals, the rings close the extrusion gaps between the internal surface of the casing and the expanded tubular member ribs. The rings better conform to the sealing surface of the casing, thereby facilitating the creation of the seal between this sealing surface and each of the sealing elements.

Abstract: An annular sealing element to seal between metal surfaces for use in flanges, joints, packers and the like, located in oil and gas exploration and production equipment. The sealing element has inner and outer metal deformable surfaces joined at ends, defining an interior volume which is entirely filled with a plastic deformable material. The surfaces are arranged such that on compression of the element from the ends, the element will deform in a controlled manner on a cantilever principle. The volume of filler and the interior volume remain substantially equal during compression so that delamination does not occur. Thus the sealing element provides a seal combining the flexibility of elastomer seals with the integrity of a metal to metal seal.

Abstract: An apparatus and method for sealing pipes. In one embodiment, the end of a pipe is sealed by the use of a pipe liner and a sealing member. The sealing member may be a hydrophilic material, a hydrophobic material, a compressible material, or a paste, and may also be a unitary member or formed from a sheet of material. The sealing member is held in place by a mechanical fastener and a liner is installed adjacent the sealing member and against the wall of the pipe or other structure to be sealed. The mechanical fastener aids in holding the sealing member in place at the end of the pipe.

Abstract: An apparatus and method for sealing pipes or underground structures is provided. In one embodiment, the end of a pipe is sealed by the use of a pipe liner and a sealing member. The sealing member may be a hydrophilic material, a hydrophobic material, a compressible material, or a paste. The sealing member is held in place by a mechanical fastener and a liner is installed adjacent the sealing member and against the wall of the pipe or other structure to be sealed. In another embodiment, a manhole is sealed by the use of a sealing member, a mechanical fastener, and a manhole liner.

Abstract: An annular sealing element to seal between metal surfaces for use in flanges, joints, packers and the like, located in oil and gas exploration and production equipment. The sealing element has inner and outer metal deformable surfaces joined at ends, defining an interior volume which is entirely filled with a plastic deformable material. The surfaces are arranged such that on compression of the element from the ends, the element will deform in a controlled manner on a cantilever principle. The volume of filler and the interior volume remain substantially equal during compression so that delamination does not occur. Thus the sealing element provides a seal combining the flexibility of elastomer seals with the integrity of a metal to metal seal.