A system for fluid transfer is disclosed and includes a floatable buoy, an underwater hose, a plurality of underwater node units and circuitry. The underwater hose has a first end coupled to the floatable buoy and a second end. The plurality of underwater node units distributed along the length of the underwater hose and configured to generate positioning signals. The circuitry is configured to determine a relative distance between each of the plurality of undersea node units based on the generated positioning signals to generate a plurality of relative distances.

A flexible pipe having one way fluidic flow valves containing a working fluid that generates one way fluid flow to power a generator. Preferably the pipe is buoyant or otherwise flexed by motion of any supporting or surrounding liquid, so that waves in the liquid flex the pipe. Preferably an added interior pumping arm is provided to increase the fluid flow from flexing.

A hose includes a tubular section having an outer tube and an inner tube. The inner tube forms a liner for the outer tube. Apart from being connected by connecting means near both ends of the tubular section, the inner tube is unconnected to said outer tube.

An arrangement for a hose system (11) having an inner main hose (12) and an outer cover hose (13) delimiting a ring shaped air filled volume (14) to make the hose buoyant in water. At least at one end there is a connector (15) attached to the main hose as well as the cover hose, and which at its free end is attached to, or integrated with, a connector part (16) for connection of the hose system (11) to an external system. The connector (15) includes an inner sleeve (22), to which the end of the main hose (12) is attached to, as the inner sleeve (22) by its free end (26) is equipped with an element, in particular threads, for connection to a pipe system, an outer sleeve (16) to which the end of the cover hose is attached, a connector element (30) for connecting the inner sleeve (22) detachably to the outer sleeve (16), and a connection between the two hose parts (12, 14) having a one way valve which allows draining of the outer hose (14) to the main hose (12).

An arrangement for a hose system (11) having an inner main hose (12) and an outer cover hose (13) delimiting a ring shaped air filled volume (14) to make the hose buoyant in water. At least at one end there is a connector (15) attached to the main hose as well as the cover hose, and which at its free end is attached to, or integrated with, a connector part (16) for connection of the hose system (11) to an external system. The connector (15) includes an inner sleeve (22), to which the end of the main hose (12) is attached to, as the inner sleeve (22) by its free end (26) is equipped with an element, in particular threads, for connection to a pipe system, an outer sleeve (16) to which the end of the cover hose is attached, a connector element (30) for connecting the inner sleeve (22) detachably to the outer sleeve (16), and a connection between the two hose parts (12, 14) having a one way valve which allows draining of the outer hose (14) to the main hose (12).

A sea hose load analyzer system is disclosed. The sea hose load analyzer system also includes a transceiver interface. The sea hose load analyzer system also includes a memory storage. The sea hose load analyzer system also includes circuitry may include one or more processors configured to: receive load information of one or more sea hoses as node unit data via the transceiver interface, store the load information in the memory storage, and monitor additional node unit data via the transceiver interface.

One general aspect includes a buoy position analyzer system. The buoy position analyzer system also includes a transceiver interface. The buoy position analyzer system also includes a memory storage. The buoy position analyzer system also includes circuitry may include one or more processors configured to: receive node unit data via the transceiver interface, generate an operational movement envelope for a buoy based on the received node data, store the operational movement envelope in the memory storage, and monitor additional node unit data via the transceiver interface.

Device for a double hose structure with an inner main hose and an outer cover hose defining an annular space giving buoyancy in water. At least one end is provided with a coupling member forming a mount for the main hose and the cover hose which at a free end merges into a threaded portion for connecting the hose assembly to an auxiliary connection. The coupling member comprises an inner coupling sleeve connected to one end of the main hose and an outer coupling sleeve connected to the cover hose, the inner and outer coupling sleeves being mutually connected forming a liquid tight termination of the annulus by a ring-shaped plate. The plate is attached with screws through holes only to the outer sleeve, the plate being forced against a shoulder of the inner coupling sleeve by a ring nut with internal threads matching external threads on the inner sleeve.

Device for a double hose structure with an inner main hose and an outer cover hose defining an annular space giving buoyancy in water. At least one end is provided with a coupling member forming a mount for the main hose and the cover hose which at a free end merges into a threaded portion for connecting the hose assembly to an auxiliary connection. The coupling member comprises an inner coupling sleeve connected to one end of the main hose and an outer coupling sleeve connected to the cover hose, the inner and outer coupling sleeves being mutually connected forming a liquid tight termination of the annulus by a ring-shaped plate. The plate is attached with screws through holes only to the outer sleeve, the plate being forced against a shoulder of the inner coupling sleeve by a ring nut with internal threads matching external threads on the inner sleeve.

The invention relates to a system (2), having: a buoyant buoy (4), and a floating hose (6) which has a plurality of buoyant hose segments (8) which are coupled in series. The buoy (4) has a liquid outlet connection (12) which is connected to the floating hose (6), so that the floating hose (6) is arranged in a geometrical arrangement with respect to the buoy (4). A plurality of node units (18) are fastened in a distributed manner to the floating hose (6) and the buoy (4). Each node unit (18) is designed to establish, by means of an associated radio unit, a respective radio link (22, 24, 26, 28) to each of at least two of the further radio units of the respective node units (18, 42, 44, 46, 48), so that a radio network (30) is created. Each node unit (18) is designed to determine a relative distance (32, 34, 36, 38) from each further node unit (18) on the basis of the respective radio link.