APPARATUS FOR REMOVING PETROLEUM PRODUCTS FROM WATER SURFACE Russian patent published in 1997 - IPC

FIELD: removal of oil pollution. SUBSTANCE: apparatus has casing with inlet and outlet connecting pipes wherein rings are installed, their diameters being less than that of casing. Distance between rings and their material are chosen such as to allow oil to form meniscus. Central cavity confined by rings is provided with overflow dam member disposed before oil-drain hole, whereas water-drain hole is provided with pressure valve in centrifugal field of liquids enclosed in space extending from surface of casing up to and including peripheral part of central cavity, its thickness being equal to height of overflow dam member. EFFECT: facilitated cleaning of water surface. 3 cl, 2 dwg