Patent ID: 7828494

Claim:
A buoy assembly for at least partially containing a floating material on a surface of a body of water in a selected area thereon, the buoy assembly comprising: a roll subassembly comprising a core element defined by a central axis thereof and a concentric roll of a predetermined length of a barrier material wrapped around the core element, the barrier material extending between a fixed end attached to the core element and a free end thereof; a body defining a cavity therein, the body comprising a mounting subassembly for locating the roll subassembly in a predetermined position therein; and the body comprising an aperture through which a deployed length of the barrier material passes as the deployed length exits the body, the aperture being formed for twisting the deployed length into an at least partially helical configuration such that upon deployment of the deployed length on the water surface, the deployed length engages the water surface and extends above the water surface by a predetermined minimum distance for engaging the floating material.