Device for recovering oil from an oil-slick on a stretch of...

Liquid purification or separation – With movable support – Float

Reexamination Certificate

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Details

C210S923000

Reexamination Certificate

active

06905597

ABSTRACT:
A device for recovering oil from an oil-slick on a stretch of water is supported on the water by at least one first floating body and is provided with an inlet that is open facing the oil-slick and that flows into a channel with side walls. The channel is provided with at least one separating body that extends between the side walls in such a manner that an upper drain zone is formed above the separating body and a separate lower drain zone is formed below the separating body. The front edge of the separating body facing the oil-slick is substantially disposed on the level of the water/oil interface and the oil can be discharged from the upper drain zone. The device makes use of the natural interface between the oil-slick and the subjacent water.

REFERENCES:
patent: 3675771 (1972-07-01), McKee
patent: 3700108 (1972-10-01), Richards
patent: 3708070 (1973-01-01), Bell
patent: 3822789 (1974-07-01), Crisafulli
patent: 3823828 (1974-07-01), Derzhavets et al.
patent: 3860519 (1975-01-01), Weatherford
patent: 3951810 (1976-04-01), Crisafulli
patent: 3966615 (1976-06-01), Petchul et al.
patent: 4257889 (1981-03-01), Wober et al.
patent: 4487694 (1984-12-01), Brandt et al.
patent: 4851133 (1989-07-01), Rymal
patent: 5215654 (1993-06-01), Karterman
patent: 5409607 (1995-04-01), Karlberg
patent: 4233526 (1994-04-01), None
patent: 2425975 (1979-12-01), None
patent: 1522803 (1978-08-01), None
patent: 1533814 (1998-11-01), None
patent: WO 92/03383 (1992-03-01), None
R. Klimek & G. Clauss, “Development of an oil skimming and separating system to combat oil spills at sea”, pp 9-15, Feb. 1983.
One page English Abstract from esp@cenet for DE-4233526-A1, Apr. 1994.
One page English Abstract from Derwent for FR-2425975, Dec. 1979.

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