US Patent 8641891 Multi-chambered container

A multi-chambered container, which reduces backflow and which can include a filter to remove contaminants from a beverage, a first chamber having a first opening disposed adjacent to a top of the container through which fluid enters the first chamber and a second opening disposed adjacent to a bottom of the container through which fluid flows out of the first chamber, a second chamber having a third opening disposed adjacent to the top through which fluid enters the second chamber and a fourth opening disposed adjacent to the top through which fluid is dispensed from the second chamber, and a fluid conduit connecting the second opening of the first chamber to the third opening of the second chamber.