Abstract: Annular, hollow upper and lower members are secured to an upwardly extending supporting leg of an offshore structure to project therefrom in generally the same plane. Each of the members includes a cylinder with the upper and lower cylinders being axially aligned and projecting from an end of each of the members; each cylinder also has a smaller diameter than its respective member to provide an annular space therebetween and each cylinder has an end portion within its respective member. Yieldable material is molded in the annular space between each member and its cylinder and is provided with longitudinal recesses therein to accommodate movement of the cylinder relative to its respective member. A longitudinal stem is provided for securing to and extending between the upper and lower cylinders with a support thereon for supporting a cylindrical bumper on the stem for rotation relative thereto. Second yieldable material is molded between the cylindrical bumper and the stem.

Abstract: An annular hollow support telescopically receives an annular hollow body in which is molded a longitudinally extending cylinder embedded in a frangible mass. The support includes an annular flange to seat and position the hollow body so that the hollow body projects longitudinally of and from the support and a surface is associated with the support to position the support on a marine structure so that the support projects laterally from the marine structure. Jack means are connected between the support and the annular hollow body for assisting in removing the annular hollow body and supported cylinder relative to the support.

Abstract: A bumper construction for offshore oil rig structures in which an upright metal bumper pipe member of considerable length is encased or sheathed loosely with a tubular rubber enclosure rotatable on the pipe member. The tubular enclosure is formed by a series of rubber sleeves telescoped over and stacked on the upright pipe. Each sleeve has three integrally vulcanized layers of elastomeric materials which have physical properties different one from those of each other layer. The different elastomeric materials are present in predetermined percentages by weight. Each sleeve has a length substantially greater than its inner diameter and preferably more than two times its inner diameter. The sleeves have interfitting conical formations at adjacent ends when stacked.

Abstract: The device comprises worn pneumatic tires positioned against one another on a cylindrical metal tube. The tube is filled with light concrete. The worn tires are filled with a low density elastic material. The part of the tires adjacent to the tube is closed off in a water-tight manner by a flexible sleeve. The tube is closed off at its ends by projecting plates which hold the assembly of tires pressed against one another. Used to protect ships' hulls when ships come alongside a quay wall.

Abstract: A rotatable energy-absorbing sleeve unit for ship bumpers including a rim-free vehicle rubber-containing tire carcass filled with elastomeric foam. The elastomeric foam may be either polyurethane or rubber foam. The tire may be an auto or truck new, used, retreaded or blemished tire.

Abstract: A rotatable fairlead suitable for use in the deployment, control and recovery of anti-pollution booms, comprises two end pieces (1 and 2), two pins, or rollers, 3 and 4, mounted between the end pieces and spaced sufficiently apart that a partially inflated boom may pass between the pins, means for rotating the said end pieces and pins through at least 270.degree. and means for holding them at a given angle of rotation.

Abstract: A bumper assembly for a marine structure is disclosed, comprising an essentially vertical frame member mounted by energy absorbing shock members at each end thereof to a stationary offshore structure, the vertical member carrying annular bumper members stacked thereon. The vertical member comprises concentric cylinders in order to extend the length thereof slightly as the shock absorbing members are actuated so that the movement of such shock absorbing members remains linear. At each end of the vertical support member, at the point of attachment of the shock absorbing member, a supporting chain or cable is attached to support such vertical member to prevent the vertical member from creating a cantilever effect on the shock absorbing members.

Abstract: The disclosure relates to improvements in or relating to the safety barrier, especially for freeways, constituting the subject matter of U.S. Pat. No. 4,062,521.Each module of the safety barrier comprises a casing 5 consisting of a stack of pneumatic tires 3 divided into units 6 and covered with a coating or outer covering 7, notches 8 being provided for the passage of the linear element or elements 2.Especially useful for the safety of vehicles, particularly on freeways.

Abstract: An energy absorption device of elastomeric material is disclosed which is particularly adapted for marine use. The device has an overall configuration resembling that of a cylinder and includes a central bore extending axially throughout its length and a plurality of additional bores extending axially throughout its length. The additional bores are symmetrically arranged around and between the inner and outer peripheral surfaces of the device.

Abstract: A fender maintains separation between a vessel, such as a pleasure boat, and a wharf to which the vessel is moored. The fender utilizes a thrust rod, one end of which is connected to the vessel. In a preferred embodiment, the other end of the thrust rod is linked to one end of each of two elastic shock absorber elements. The other ends of each of such shock absorber elements are capable of being affixed to the wharf. The embodiment also provides wheels at the wharf end of the thrust rod to reduce friction between the thrust rod end and the wharf.

Abstract: A guard barrier system for along the edge of a vehicular roadway or the like consists of substantially solid, resilient, generally cylindrical bumper elements axially mounted on posts for rotation thereon. A plurality of the posts with bumper elements thereon are spaced along the edge of a roadway or the like and are fixed to the ground in generally vertical position. Adjacent posts with bumper elements thereon are connected together to form a continuous barrier system by one or more cables or rails carried on the posts and extending between adjacent posts.

Abstract: A fender for marine use is described having an outer flexible shell forming a chamber, compressible buoyant material within the chamber and a mooring fitting connected to the shell to secure the fender. The shell is composed of a single piece of homogeneous elastomeric material, having a thickened annularly shaped lip extending around an orifice providing access to the chamber for filling. The mooring fitting is formed with a cavity and the lip of the shell is captured within this cavity to secure the fitting to the shell, so that the shell permits stretching of the fender when it is pinned between two objects while a tensile force is applied to said mooring fitting. The mooring fitting captures the lip without compressing it, so that the fitting may swivel with respect to the shell while still securing the shell from separating from said fitting.

Abstract: A bumper assembly for fending off vessels floating adjacent a marine structure includes bumper rings having flat lower surfaces and uniquely relieved upper outer surfaces. In a further aspect, an assembly includes a spring support element at one end thereof.

Abstract: A flexible terminator used as a terminal connector between the ends of a tether line and the ballast or a float for the construction of a tethered breakwater unit. One end of the terminator has a unique configuration which receives the end of the tether line in such a manner that the tether line is locked into attachment to the terminator without the use of a conventional knot arrangement. The terminator has a flexible central neck portion which receives the flexion between the floats and the ballast due to the wave motion in the water, eliminating the significant fatigue and normal fiber abrasion experienced by the tether line when tied to the ballast by a typical knot. The tether line is in axial alignment with the central neck portion of the terminator, so that the pendulum action at the attachment points between the tether line and the float and the ballast are transferred to the central portion of the terminator.

Abstract: A composite pneumatic marine fender comprising a plurality of independent and separate hollow chambers to be pressurized is disclosed. The hollow chambers are formed by bonding together outer and inner cylinders, each composed of a thin rubber like elastic cylindrical body and including an inextensible reinforcing member embedded therein at a plurality of regions separated from each other and extended in a direction parallel to the axial line of the outer cylinder and terminate at both ends of the outer and inner cylinders.

Abstract: A marine platform for offshore installation has a fixed central platform and an annular arrangement of floating dock units positioned thereabout arranged for movement therearound and vertical movement responsive to wave and water level changes. The annular arrangement of floating dock units accommodate the docking of ships and barges which may be rotated about the marine platform by rotary motion imparted the dock units.

Abstract: A fender system including a supporting frame mounted on a stationary structure by energy-absorbing shock mounting members, and the frame carrying annular bumper members stacked one above the other and sized for rotation about a pipe column, the bumper members each having their respective end surfaces stepped at an annular step in such a way that the stepped surfaces of adjacent bumpers mate and interlock, and the bumper members having multiple relief holes extending in from their end surfaces parallel to the axis of the bumper members and tending to impart a degree of asymmetrical distortion to an impacted bumper member causing it to creep around the pipe column on which it is supported; such rotation being aided by friction reducing means on the surfaces of the bumper members.