Today in 1963, US Patent 3091366 A was issued, an invention of Thomas A. Hutsell, for his “Beer Dispenser.” There’s no Abstract, though it’s described this way in the application:

This present device relates to the general art of devices intended for the measuring and dispensing of effervescent beverages. More particularly this invention relates to a beer dispensing device for dispensing draught beer. Means are provided in this present device to automatically dispense a measured amount of beer and the device is further capable for adjustment so that the desired amount of head of foam can be supplied as a part of the measured amount even though the beer in the dispensing keg may have physical properties quite different from that of the beer in the keg to which the device was previously connected.