UNDERWATER SURFACE TREATMENT DEVICE AND METHOD Russian patent published in 2017 - IPC B63B59/08 B63B59/10 

FIELD: technological processes.

SUBSTANCE: underwater surface treatment device comprises a housing which is equipped with two brush elements, rotating in opposite directions to each other and provided with bristles, a skirt portion which surrounds the brush elements at an underwater surface, and an outlet opening formed in the casing to release the casing from the material, removed from the underwater surface. The brush bristles are in at least partial contact with each other in a contact area on the said level of underwater treated surface. For the treatment of underwater surface, an outlet device is located in combination with a skirt portion at the underwater surface level. The device brush elements with bristles are rotated along the underwater surface level. The brush bristles are in at least partial contact with each other in a contact area at the treated underwater surface level and are rotating in the direction to the outlet, and are generating vacuum for holding the device housing with a tight fit on the treated underwater surface by rotating the brush elements in opposite directions, together with the skirt portion.

EFFECT: design simplicity and operation efficiency of the device.

14 cl, 10 dwg