Today in 1899, US Patent 633341 A was issued, an invention of Johann Dreckmann, for his “Siphon For Beer.” There’s no Abstract, although in the description it includes these claims:

This invention consists of an improved construction of fountain or siphon for drawing beer and carbonated or aerated drinks.

The herein-described fountain or siphon comprising two vessels, one a liquid-receptacle and the other a gas-receptacle with a reducing-valve connecting the two and a check-valve opening from the liquid-receptacle into the gas-receptacle, whereby a substantially constant pressure is maintained in the liquid-receptacle while dispensing therefrom, substantially as described.