초록 ▼

Apparatus for cleaning underwater surfaces and including at least one rotatable brush, and at least one pump the generating a stream of water passing from the front to the rear of the brush to hold the apparatus against an object to be cleaned. The apparatus can be readily manipulated and held in an

Apparatus for cleaning underwater surfaces and including at least one rotatable brush, and at least one pump the generating a stream of water passing from the front to the rear of the brush to hold the apparatus against an object to be cleaned. The apparatus can be readily manipulated and held in any desired attitude as a result of the brush being surrounded by an annular tube containing two immiscible materials of different specific gravity, such as a solid and a liquid, or two immiscible liquids.

대표청구항 ▼

An underwater cleaning apparatus, comprising: at least one rotatable brush having a front side for contact with an underwater object to be cleaned and a rear side opposite said front side; pump means for generating a water stream flowing from said front side to said rear side; an annular tube surrou

An underwater cleaning apparatus, comprising: at least one rotatable brush having a front side for contact with an underwater object to be cleaned and a rear side opposite said front side; pump means for generating a water stream flowing from said front side to said rear side; an annular tube surrounding said at least one brush and pump means; and two immiscible liquids of respectively different specific gravities filling, freely flowably movable with respect to each other in, and hermetically sealed in said annular tube, so that the liquid having greater specific gravity moves downward in said annular tube relative to the other of said two liquids in synchronism with changes in the attitude of said apparatus, thereby to assist in attitude control and facilitate maintenance of a change in attitude of said apparatus.