Patent ID: RE38785

Claim:
A container for storing a liquid comprising: upright walls surrounding a chamber, a bottom wall located in a horizontal plane joined to the upright walls to retain liquid in the chamber, a top wall joined to the upright walls to close the top of the chamber, said top wall having a plurality of linear ribs and the bottom wall having a plurality of grooves having sizes and shapes that correspond to the size and shapes of the linear ribs that permit two of said container to be stacked with the ribs of one container to be mated with grooves in the other container, corners joining adjacent portions of the upright walls, a liquid fill opening in the top wall adjacent one corner, cap means attachable to the top wall to close the fill opening, said one comer corner having a bottom portion located above the horizontal plane of the bottom wall providing a space below in the one corner vertically aligned with the liquid fill opening to allow a liquid to be placed in a chamber of a container having a fill opening below the space below the bottom portion of said one corner, and valve means mounted on an upright wall adjacent the bottom wall for controlling the flow of liquid from the chamber.