Patent attributes
A protective tarp for covering a mass includes of a flat, flexible sheet material having a top and a bottom and having a peripheral edge, e.g. a plurality of edges. Along the peripheral edge or along each of at least two of the plurality of edges, there is a plurality of unconnected tank compartment anchors, arranged in a predetermined pattern, that have at least one fill orifice and closure means for the fill orifice. The plurality of tank compartment anchors are hollow, flexible tank compartment anchors, and, in preferred embodiments, the tank compartment anchors and sheet material are formed of the same material. In some embodiments, the sheet material is rectangular from a top view and has four edges, the four edges being two sets of two opposite edges. There are at least two edges opposite one another which contain a plurality of tank compartment anchors.
