Patent ID: 7504025

Claim:
A floating self-propelled cleaning device for water surfaces, comprising: a) a floating body comprising a first and a second floating element; b) at least one net-shaped collection container arranged between said floating element, said net-shaped collection container connected to said floating body and having an inlet; c) a first and a second propelling means arranged respectively on said first and second floating elements suitable for generating opposite thrusts that cause the rotation of said floating body, so that the inlet of said container sweeps a portion of the water surface; d) means for providing and switching energy alternately to each of the first and second propelling means so as to generate intermittent thrusts thereby causing a shifting movement to said floating body that serves, together with said rotation, to move the floating body horizontally on the water surface; and e) at least one electric energy source integrally associated with said floating body for providing and switching energy to said first and second propelling means, wherein said means for causing a shifting movement comprises a distribution element that distributes alternately the energy to each propelling means for generating intermittent thrusts, and wherein said distribution element distributes alternately the energy to each propelling means with the rotation of the floating body.