BUOYANCY DEVICE AND METHOD FOR USING SAME

摘要

A method and a buoyancy device (2) adapted to impart buoyancy to at least one longitudinal element (1) submerged in water. The buoyancy device (2) is hollow and is preferably made of plastics or a similar corrosion resistant material. The device is preferably produced as one single unit, but may include several separate chambers (12, 16, 17) which, via valves (13) may be brought in communicating connection with the surroundings, in a controlled manner. The device (2) will no be exposed to large differential pressures during use, and accordingly may have a relatively thin wall. The buoyancy device (2) has a much smaller weight than existing buoys, is much simpler to assemble than traditional buoys of metal, and involves no corrosion problems.