Abstract: A device for the transport of loads under water which may be used also as a loading bridge, allows to reach great depths under water and comprises a tank (S), two tanks (Sg) and a float (G) in which the pressure automatically remains equal to the external hydrostatic one, due to a valve (V) with four functions that assures the air volume, predetermined in the loading phase, to be constant inside the tank with the variation of the depth.

Abstract: A floating modular system for the protection of harbours and the transformation of energy, consisting of: a plurality of modules (1) made of metal and/or reinforced marine concrete box-structure, comprising internal air spaces (2) for determining the floating thereof and a lower flooded room (4) for the stabilization, under the impact of the sea waves against the level surfaces (6) for their reflection, for the protection of the opposed harbour environment (AP), provided with floating quays (7); a series of floats (8) applied to the wave front of the modules (1), operated by the wave motion for absorbing their energy by double effect pumps (9) with the successive transformation into electric energy; a self-levelling system for the anchorage of each of the modules (1), with self-distributed traction; a system for balancing the tide variations and for levelling the modules (1); a system of joints for coupling the modules (1) according to the extension.