Patent ID: 9505472
Filing Date: 2016-11-29
CPC Classification: A46B,B08B,B63B,E02B

Claim Text:
1. An apparatus for treating an underwater surface, said apparatus comprising: an enclosure, two brush members fitted in the enclosure and arranged to rotate in directions opposite to each other and equipped with bristles, a skirt portion surrounding the brush members at a level of the underwater surface, whereby the brush members with the bristles are arranged to rotate along said level of the underwater surface, and a discharge opening provided in the enclosure for relieving the enclosure of matter removed from the underwater surface, wherein the skirt portion is arranged to extend to the discharge opening from both sides thereof, and wherein the discharge opening is fitted in connection with the skirt portion and is thus arranged so that, when the brush members are rotating on the underwater surface to be treated, the discharge opening is arranged to settle at said level of the underwater surface to be treated, and whereby the bristles of the brushes are at least in partial contact with each other in a contact zone at said level of the underwater surface to be treated and in such a manner that the rotating directions of the brush members in the contact zone are towards the discharge opening.