| 摘要 |
A recovery device (10) for containing a material (16) floating on the surface of a liquid (12) comprises a shroud (26) having an open top and an open bottom, the top being of smaller diameter than the bottom, thus forming a truncated cone-like shape. The open top has an open area which is smaller than the area of the open bottom. The device (10) is positioned with the open bottom above the surface of the liquid (12) and encircling at least a portion of the floating material (16). It is then allowed to sink to its collection position, in which the open bottom is submerged below, and the open top is at or above, the surface of the liquid (12). As a result, the floating material (16) is encircled by the open bottom and is forced into the smaller area of the open top as the device (10) sinks into the water. The recovery device (10) may include a collar (24) attached to the open top, a skirt (28) attached to the open bottom and ballast weights (38) to aid in sinking the device (10).
|
