Abstract: A beach erosion mitigation device is provided that includes an elongated, tubular member configured to be tethered to the shoreline and attenuate wave energy. The tubular member comprises a corrugated construction having enclosed air pockets that afford buoyancy. The ends of the tubular member are open, while along its length are disposed a set of overflow openings and a set of venturi openings. The venturi openings receive incoming water from the breaking wave and direct it axially along the interior of the tubular member. The overflow openings and the open ends allow water to escape prior to the next wave arrival. The device is placed alone, or in groups, along a shorefront to directly receive the energy of breaking waves. The energy thereof is attenuated by the structure of the device and via its redirection therethrough, thereby combating beach erosion caused by storm swells and high energy waves.

Abstract: A shaft seal assembly includes a metal case having a wall extending cylindrically about a central axis with an annular leg extending radially inwardly from the wall toward the central axis. An elastomeric material is bonded to the leg and a primary seal lip is operably attached to the elastomeric material. The primary seal lip separates an oil side of the assembly from an air side of the seal assembly. The elastomer material has an annular groove formed on the air side of the primary seal lip. The assembly further includes an auxiliary lip subassembly including an annular metal washer with at least one auxiliary lip fixed thereto as a one-piece subassembly. The annular metal washer has an annular outer periphery snappingly received within the annular groove.

Abstract: A seal assembly for sealing between a first member and a second member of a joint, the first member being able to pivot about an axis of the joint relative to the second member, is disclosed. The seal assembly includes a first ring, a load ring, a first seal ring, and a resilient second seal ring. The first ring is for a first seal cavity of the first member. The load ring is for a second seal cavity of the second member. The first seal ring may have a sealing surface extending in a radial direction. The resilient second seal ring may have an annular seal lip. The first seal ring is held stationary by the first ring in the first seal cavity of the first member, and the second seal ring is forced axially by the load ring into axial sealing engagement with the first seal ring.

Abstract: The system, method and apparatus for installing a piling generally includes a hollow piling having an inner surface and an outer surface with the piling having a lower end with a friction collar secured about the lower end. The friction collar is manufactured to have an inner surface wherein the inner surface includes portions with various diameters. The friction collar is placed over the lower end of the piling such that the lower end of the piling is aligned with an intermediate portion of the inner surface of the friction collar. A tapered die is pressed into the bottom of the piling to expand the lower end of the piling outwardly such that it extends into the intermediate portion of the friction collar. This secures the friction collar to the end of the piling. Optionally, an end cap may be placed over the piling and/or friction collar.

Abstract: A sealing element for sealing a gap between two components is provided. The sealing arrangement may be a seal arrangement of a gas turbine system, wherein the sealing element is elongate along a main line and has a contoured cross section in a corrugated center region. In cross section, the sealing element is directed along the main line and may be deformed in a direction substantially orthogonally with respect to the main line. In order to provide a wear-resistant, long-lasting sealing element with a particularly efficient blocking action, it is proposed that the seal teeth of the corrugation have a virtually rectangular cross-sectional contour, the tooth height of which seal teeth is between 10% and 40% of the sealing-element thickness which may be measured parallel to the tooth height.

Abstract: An assembly is disclosed for sealing the sliding interface between two objects capable of sliding or moving with respect to one another, but where the sliding interface must provide a substantial seal against pressure loss therethrough, such as where an assembly seals the sliding interface between a piston and a cylinder or between a rod and a bushing. The sliding interface includes a seal located in a seal groove, wherein the seal ring height is less than the height of the seal groove and the inner diameter of the seal is greater than the base of the groove. In one aspect, the difference in height is set by a shim and a piece of material of the same height as that of the seal ring.

Abstract: A steel pipe pile includes an elongated cylindrical steel pipe pile body with an open end and a helical wing fixed on an outer circumference of the pile body at a predetermined height range from the open end. The wing includes a wing edge extending outward from the outer circumference of the open end, and a wing body extending continuously with the wing edge and extending helically along the outer circumference and toward an upper side of the pile body. The open end includes an opening slanted in a radial direction of the pile body and a distal backside that is defined by a remaining circumference of the pile body. An upper end of the slanted opening is above the wing edge, and the distal backside has a point intersecting with a line orthogonal to a line connecting the wing edge and a center of the pile body.

Abstract: A device is for a release module for attaching a pipe string to a heave compensated, load bearing unit arranged on a floating installation, where two or more hydraulic cylinder units form an extendable connection between the heave compensated, load bearing unit and a portion of the pipe string.

Abstract: A rubber ring for a gasket has a first bulging portion composing a seal portion; a second bulging portion composing an attachment portion; and a depressed portion between the first bulging portion and the second bulging portion. The first bulging portion includes a thickest portion carrying out a sealing function, and when the rubber ring is compressed from both sides, the second bulging portion and the depressed portion have a thickness which does not contact with the faces sandwiching the gasket. An end of the metal plate is positioned in a range of the depressed portion between the first bulging portion and the second bulging portion, and between changing points wherein each of slope face, sloping toward the depressed portion from the two bulging portions, changes into a curved surface concaving on an outer side from a curved surface projecting on the outer side.

Abstract: Disclosed are apparatus, systems and methods for reducing displacement of a subsea conduit such as offshore hydrocarbon production pipeline, also referred to as pipeline walking or buckling, thus reducing the need for expensive pipeline anchoring or other mitigation solutions. A movement resistor adapted to be installed on a subsea conduit is provided having an inner portion adapted to receive and securely attach to a subsea conduit and at least one resistor portion adapted to resist induced forces. The at least one resistor portion includes a mesh layer therein that allows the passage of water but does not allow the passage of soil there through. At least one movement resistor can be installed along the length of a subsea conduit.

Abstract: A seal assembly between a rotor and a stator is disclosed. In one embodiment, the seal assembly includes: a rotor; a stator positioned around the rotor; and a plurality of seal leaves positioned between the rotor and the stator, the plurality of seal leaves circumferentially stacked around the rotor to define a seal ring between the rotor and the stator, wherein gaps between adjacent seal leaves are partially filled, such that contact faces and residual gaps are between adjacent seal leaves, wherein the contact faces generate friction to dampen vibrations during operation. Such damping effects still allow the compliant motion of the seal leaves with minimal leaf vibration. Also, thicker and more resilient leaves may be applied with reduced leakage through the root gaps.

Abstract: Backup rings are disposed on opposed sides of a sealing element. The backup rings are initially bow shaped in the run in position. Opposed ends of the bow shape are brought together to extend the extrusion barriers and compress the sealing element. The relative axial movement that brings the opposed ends of the bow shape together results in radially extending the bow shape. The bow shape is reformed into a teardrop shape that extends radially beyond a pinch location created by relative axial movement of adjacent support members coming closer together. A sealing element extends radially during the deployment of the extrusion barriers and is contained between them. The extension of the extrusion barriers allows conformance to surface irregularities in the surrounding tubular or wellbore wall.

Abstract: A sealing arrangement for shaft and tunnel constructions. The sealing of gaps between components of shaft and tunnel constructions is improved, in particular if the components are misaligned. For this purpose a) the sealing arrangement (1) comprises at least two components (2), which lie against each other at butt sides (3) so as to form a gap (4), b) the components (2) have an elastic sealing profile (5) on each butt side (3), and c) the sealing profiles (5) of the butt sides (3) that lie against each other lie against each other on a contact plane (6) and bridge the gap (4) in a sealing manner. The sealing profiles (5) have areas (7, 8) of different hardness arranged in alternation in the transverse direction (9) perpendicular to the respective profile longitudinal plane (10), the sealing profiles (5) of butt sides (3) that lie against each other differing from each other in the arrangement of the areas (7, 8) of different hardness in the transverse direction (9).

Abstract: A sealing assembly for a rolling bearing. The sealing assembly has at least one cover element for covering a bearing gap along a cover plane. The cover element has a securing section, a sealing collar, a base part connecting the securing section and the sealing collar, and at least one sealing surface provided on the sealing collar for non-contact sealing. At a starting section the sealing collar extends from the base part diagonally toward the inner side of the cover element facing the bearing interior and at an end section the sealing collar extends from the inside toward the outer side of the cover element facing away from the bearing interior. At the same time, the sealing collar forms a sealing surface substantially perpendicular to the cover plane and at the end of the end section at least one edge impeding the inflow of impurities into the bearing interior.

Abstract: An assembly is disclosed for sealing the sliding interface between two objects capable of sliding or moving with respect to one another, but where the sliding interface must provide a substantial seal against pressure loss therethrough, such as where an assembly seals the sliding interface between a piston and a cylinder or between a rod and a bushing. The sliding interface includes a seal located in a seal groove, wherein the seal ring height is less than the height of the seal groove and the inner diameter of the seal is greater than the base of the groove. In one aspect, the difference in height is set by a shim and a piece of material of the same height as that of the seal ring.

Abstract: A rock anchor includes a cartridge positioned in an elongate tubular body and having a rigid tubular housing. First and second compartments are defined within the cartridge. First and second adhesive components are positioned within the respective first and second compartments and are fluidly separated by a partitioning wall. A mixer is positioned within the elongate tubular body at a leading end of the cartridge. A pressing member is positioned within the cartridge towards a trailing end and includes a bladed formation which is operable to sever the partitioning wall when the bladed formation is caused to advance towards the leading end in response to fluid flowing into the cartridge, to thereby force the first adhesive component from the first compartment and the second adhesive component from the second compartment towards the leading end and into the mixer.

Abstract: An apparatus for clamping elongate elements in a parallel piggybacked arrangement during subsea laying of the elements is disclosed. The apparatus has opposed reciprocating jaws for forcing together clamp segments around the elongate elements to assemble a piggybacking clamp that applies clamping forces to the elongate elements.

Abstract: A reinforced helical pile system suitable for use in seismically active areas incorporates steel fibers in the grout and a fiber reinforced polymer sleeve (casing). A low-friction driving assembly and low-friction sleeve couplings enable the sleeve to be drawn into the soil substantially without rotation, reducing power consumption and preserving the integrity of the casing.

Abstract: Methods are provided for the creation of large diameter piles in all types of soils (cohesive, cohesionless or rocky), particularly for the construction of bulkheads made of juxtaposed or secant piles, while maintaining the deviation from the vertical well below the limit ?2% required by European standard EN 1536. The invention reduces verticality errors, advantageously exploiting the accuracy provided by the directional drilling technology. Tools for implementing such methods are also provided.

Abstract: A subsea well safing method and apparatus to secure a subsea well in the event of a perceived blowout in a manner to mitigate the environmental damage and the physical damage to the subsea wellhead equipment to promote the ability to reconnect and recover control of the well. The safing assembly is connectable to a subsea well and a marine riser. Pursuant to a safing sequence, the well tubular is secured in the upper and lower safing assemblies and the tubular is then sheared between the locations at which it has been secured. Subsequently, an ejection device may be actuated to physically separate the upper safing assembly and the connected marine riser from the lower safing assembly the subsea well.