US Patent 7524230 Non-spill container having a stopper

A container has a container body that has an inner chamber, a bottom wall, a top wall, a opening provided in the top wall, and a tube extending from the opening into the inner chamber to provide communication between the inner chamber and the exterior of the container body. The opening can be curved, the tube can have a curved cross-section, and the tube can be positioned offset from the center of the inner chamber.