Today in 1985, US Patent 2225996 A was issued, an invention of Hubertus J. Souren, assigned to Grolsche Bierbrouwerij B.V., for his “Stationary Beer Container.” Here’s the Abstract:

A stationary beer container having upper and lower end connections coupled with a flow line coupling and valve assembly adapted to cooperate with a standard beer tap head used with barrels or kegs. The flow line coupling and housing assembly of the invention is connected with a line to the lower end of the beer container and a vertical line to the upper end of the container including a transparent section for determining the beer level in the container. The same type of tap head is used for tapping beer from the container, filing the container, and cleaning the container.