Patent ID: 8740500

Claim:
A vessel at a first position in a waterway having a hull and a deck including: an engine mounted on said deck, said engine driving a first system and a second system, said first system including said engine connected to a speed reducer, said speed reducer connected to a power take off clutch, said power take off clutch connected to a drive coupling, and a centrifugal pump to fill and empty at least one container located in said hull, said second system further including said engine connected to an electromagnetic clutch, said electromagnetic clutch connected to a hydraulic pump, said hydraulic pump powering at least one winch, said at least one winch connected to a cable, said cable further connected to a position proximal the waterway, whereby said hydraulic pump causes said winch to rotate, pulling said cable, causing said vessel to move from the first position to a second position, the second position perpendicular to the flow of the waterway, where said centrifugal pump floods said at least one container, causing said vessel to sink, blocking the waterway.