Today in 1945, US Patent 2369721 A was issued, an invention of William F. Delzer, for his “Beer Dispenser.” There’s no Abstract, but the introduction to the description gives something similar.

This invention relates to beer dispensers. The dispenser of the present invention is particularly adapted for home, club, picnic, or other uses where bar facilities are not available for the serving of draft beer. An object of the present invention is to provide a dispenser readily applicable to present commercial forms of kegs and the like and capable of discharging beer there from without the necessity of using hand pumps or other types of pressure devices heretofore required in dispensing.