Abstract: A skimmer used to remove both heavy and light oil from a body of water or for the removal of either light or heavy oil and a method of operation of the skimmer. The heavier oil is removed from a first location on a rotating member and the lighter oil is removed from a second location on the rotating member. The oil removed at both locations is collected at a single location and a pump removes the oil from the skimmer.

Abstract: A skimmer used to remove both heavy and light oil from a body of water or for the removal of either light or heavy oil and a method of operation of the skimmer. The heavier oil is removed from a first location on a rotating member and the lighter oil is removed from a second location on the rotating member. The oil removed at both locations is collected at a single location and a pump removes the oil from the skimmer.

Abstract: The invention comprises a roof assembly, comprised of a frame and a plurality of louvers rotatably mounted within the frame, each louver having a channel running along its longitudinal axis. The assembly may also include a gutter located at one end of the frame below the louvers and running perpendicular to the longitudinal axes of the louvers. Also, the assembly further includes a mechanism for rotating the louvers from an open position to a closed position. The result is that liquid can flow along the channels in the louvers and into the gutter.