118results about "Cable installations on floats" patented technology

A multi-gimbal configured transition protectively interfaces a mooring and communication cable to a communication ocean buoy. The transition interface contains a segmented, flexible sheath formed of a plurality of pivotally interconnected gimbal rings having mutually adjacent interior apertures through which one or more communication link members pass. Successive gimbal rings are orthogonally pivotally interconnected with one another so as to make the flexible sheath flexible in three dimensions. Upper ends of one or more communication link members are connectable with a communication cable connection fixture of the buoy. Lower ends of the communication link members are connectable to communication cable terminal connectors of a terminal end of the mooring cable.

An electrical penetrator for subsea use has an annular cavity between the connector pin and the body of the penetrator that is filled with a dielectric oil which may act as a pressure compensator. In certain embodiments, a plurality of nested boot seals provide a watertight seal between an electrical cable and the body of the penetrator. An inner boot seal has a stepped inner diameter which engages a central, axial, connector pin and at least one wall of a cylindrical projection or an annular recess formed in the external face of the penetrator body. An outer boot seal has a stepped inner diameter which provides a watertight seal to an attached electrical cable, the connector pin and an outer segment of the inner boot seal.

A method for laying cable from a vessel at a near shore location in shallow water to shore. The cable on the vessel is wrapped around a modified roller quadrant on the vessel. The roller quadrant is moved from the vessel into the water. A pulling device is attached by a line to the roller quadrant. The pulling device is used to pull the roller quadrant and cable toward shore. The pulling device may be positioned in the water and moved to shore as required. The pulling device may also be initially positioned on shore. The roller quadrant may include a skid and buoyancy modules to reduce the pulling force required to move the roller quadrant and lay the cable to shore.

An intrusion detection system includes a suspended optical fiber having a neutral buoyancy and an optical time-domain reflectometer connected to the suspended optical fiber at an origin location. The suspended optical fiber is connected to a mooring at a first end of the suspended optical fiber and further includes at least one terminal end. The optical time-domain reflectometer includes a light source operable to emit an optical pulse of light into the suspended optical fiber from the origin location toward the terminal end, and a processor operable to receive an optical return signal from the terminal end of the suspended optical fiber or from a deformation created by a disturbance to the suspended optical fiber and to determine a location and a type of the disturbance based on an analysis of at least a time to receive the optical return signal and a magnitude of the optical return signal.

The invention relates to a high pressure, high voltage penetrator assembly for subsea use, wherein the assembly is upright attachable to a wet gas, subsea gas compressor, and wherein the assembly includes a penetrator unit for feed-through of electric power to a compressor motor; a funnel shaped housing with a housing chamber, the penetrator unit being located at an upper end of the chamber; a grid located inside the chamber transversely of a longitudinal axis of the chamber, the penetrator unit being located above the grid, a filter located in the chamber below the grid and above an inlet to a housing of the compressor motor, and a sensor unit extending into the chamber from the penetrator unit and towards, but spaced from the grid.

Ocean floating installations (1) are disposed on the ocean. The ocean floating installations (1) float on the ocean with the lower part of the ocean floating installations (1) being fixed to the seabed by mooring ropes (11). Each of the ocean floating installations (1) is connected at a connection part (5a) to a cable (3), which is a first cable. Each of the cables (3) is connected at a connection part (5b) to a cable (7), which is a second cable. In other words, the ocean floating installations (1) are connected to each other by the cables (3) and the cable (7). A connection is established with the cables (7) at the connection parts (5b) located on the seabed. In other words, the cables (7) are installed on the seabed.

The embodiment of the invention provides a shallow water floating type wind power system and a dynamic cable assembly thereof. The dynamic cable assembly for the shallow water floating type wind power system comprises a dynamic cable, a plurality of buoyancy units and a plurality of connecting units; each connecting unit comprises a mooring chain and an elastic cable; the dynamic cable is connected with a seabed through the mooring chains and the elastic cables; the connecting units and the buoyancy units jointly define the line type of the dynamic cable; the line type of the dynamic cable comprises a first wave trough section, a plurality of wave crest sections and second wave trough sections between every two adjacent wave crest sections; the buoyancy units are arranged at the top ends of the wave crest sections; and the connecting units are arranged on the sides, away from a floating type draught fan, of the wave crest sections. According to the dynamic cable assembly for the shallow water floating type wind power system, when the sea condition is severe, the dynamic cable cannot drift in a large range, when the impact borne by the dynamic cable is too large, the elastic cables can reduce the impact load borne by the dynamic cable, and the situation that the joint between the dynamic cable and the mooring chains is damaged due to too large impact is avoided.

The invention relates to a cable layout device. The cable layout device comprises a suspension buoy, a steel wire rope and a cable suspension part, wherein the upper part of the suspension buoy is of a cylindrical structure, the bottom of the suspension buoy is conical, a cable outlet pipeline is arranged in the axis of the suspension buoy, and a cable guide disk is arranged at the top of the suspension buoy; one end of the steel wire rope is wound and fixed on a cable storage disk, and the other end of the steel wire rope penetrates through the cable outlet pipeline; the suspension buoy lifts a cable through the steel wire rope; the cable suspension part is connected with the suspension buoy through the steel wire rope; a through hole is formed in the middle part of the cable suspension part; the cable is clamped and fixed in the through hole; the cable suspension part is used for pulling the cable. According to the cable layout device, the cable layout process can be conveniently and quickly completed, the cable can be effectively recycled for repeated utilization, the cost is greatly reduced, and the economic benefit is improved.

A non-metallic clip connection system includes a non-metallic clip having a substantially rectangular base portion, a first longitudinal flared wing portion, and a second longitudinal flared wing portion, wherein a plurality of edges of the clip along a path of insertion are beveled or radiused. The non-metallic clip connection system also includes a first non-metallic member having a first portion of a non-metallic clip receiver and a second non-metallic member having a second portion of the non-metallic clip receiver. The first non-metallic member is secured to the second non-metallic member by inserting the non-metallic clip in the non-metallic clip receiver. A non-metallic vertebrae bend restrictor and a non-metallic vertebrae end piece may use a non-metallic clip connection system.

The present invention concerns a device (1) designed to attach at least one cable (2) along a pipe (3), the device (1) comprising: a base (10) constituting a part of maximum height (H10) of the device (1); a channel (20) that extends along a longitudinal axis (X1) on an upper side of the device (1) and which is intended to receive the cable (2); a support surface (30) which is formed on a lower side of the device (1) and which is intended to rest against the pipe (3); two jaws which are formed protruding from the base (10) on the upper side, which border the channel (20) on either side of the longitudinal axis (X1) and which constitute a clamp (12) provided to grip the cable (2); and a transverse passage (40) which is formed through the base (10), between the channel (20) and the support surface (30), and which is intended to receive an attachment member (4) to press the device (1) against the pipe (3); characterized in that the device (1) comprises a longitudinal extension (50) prolonging the base (10), more elongated than the base (10) and having a height (H50) decreasing overall moving away from the base (10) along the longitudinal axis (X1).

A non-metallic clip connection system includes a non-metallic clip having a substantially rectangular base portion, a first longitudinal flared wing portion, and a second longitudinal flared wing portion, wherein a plurality of edges of the clip along a path of insertion are beveled or radiused. The non-metallic clip connection system also includes a first non-metallic member having a first portion of a non-metallic clip receiver and a second non-metallic member having a second portion of the non-metallic clip receiver. The first non-metallic member is secured to the second non-metallic member by inserting the non-metallic clip in the non-metallic clip receiver. A non-metallic vertebrae bend restrictor and a non-metallic vertebrae end piece may use a non-metallic clip connection system.

A buoyant power cable for electrically connecting a submerged robotic self-propelled pool cleaner to an external power supply that is subject to foaming coils in the floating portion that are not readily opened and interfere with the desired movement of the pool cleaner is provided with a separate flexible sleeve of polymeric material or an extruded coating of a foamable or solid polymeric composition having a relatively low coefficient of friction as compared to the surface of the floating cable over the portion of the cable that floats on the water's surface so that when one or more loops are formed in a portion of the cable covered by the sleeve or coating, the contacting surfaces easily slide over each other to permit the removal of the loops and the free movement of the pool cleaner.

The invention discloses an active transporting device applied to a seabed cable paving winch. The active transporting device comprises a machine frame, wherein a base is hinged to the top of the machine frame, the base is connected with the seabed cable paving winch, an active transporting wheel is arranged at the lower portion of the machine frame, the middle of the active transporting wheel is driven by an active transporting shaft, the rear end of the active transporting shaft is connected with a transporting motor, an underwater cable is arranged on the peripheral surface of the active transporting wheel, a head portion of the underwater cable is connected with a wet plug-in connector of the underwater cable, a first swing arm and a second swing arm are further arranged at the front end of the machine frame, the first swing arm is arranged at the end portion of the machine frame through a first swing arm shaft and is driven by a swing arm motor, the second swing arm is further arranged at the end portion of the machine frame through a second swing arm shaft, gear mechanisms are arranged at a head portion of the first swing arm and a head portion of the second swing arm and are meshed with each other, a tail portion of the first swing arm and a tail portion of the second swing arm are both provided with clamping grooves through springs, pressing wheels are arranged in the clamping grooves, the pressing wheels are in butt joint with the underwater cable, connection rods are arranged at two ends of the clamping grooves, and head portions of the connection rods are in hinge connection with the swing arms. The active transporting device can work reliably.

A wireline floatation device capable of reducing the weight of a wireline deployed down a well bore may include a floatation module capable of being detachably affixed to a wireline and formed at least partially of a buoyant material. A groove in the floatation module may extend longitudinally from a top face to a bottom face and laterally from an inner portion to an outer surface to receive the wireline. The groove may include a wireline receptacle portion capable of operatively housing the wireline. The floatation module may also include one or more gripping means capable of retaining the floatation module at a predetermined position on the wireline. The floatation module may further include a retaining means capable of selectively retaining the wireline within the groove. The floatation module may include a plurality of floatation modules capable of being operatively engaged to each other and detachably affixed to the wireline.