Today in 1966, US Patent 3229852 A was issued, an invention of Aram Y. Lawson, for his “Draft Beer Dispensing Unit for Use in a Household Refrigerator.” There’s no Abstract, although in the description it includes this summary:
This invention is a draft beer dispenser made of aluminum specially designed for simple installation in household refrigerators.
The purpose of this invention is to provide a dispensing unit for a pressurized beverage, which unit is to be installed on the shelf of a household refrigerator. In use, the door of the refrigerator may be opened, and the spigot of the dispenser actuated so that the beverage may flow directly into a glass (or other receiver) manually held adjacent the said spigot. After removing the glass full of beverage, the door may then be closed. During the inactive period, the refrigerating effect of the refrigerator will maintain the beverage at the desired temperature, ready for the next use.
Further objects are to provide a dispensing unit which may be readily re-filled, and, when the beverage is carbonated, (i.e. beer), the pressurization means for the dispensing will also be utilized to maintain the said carbonation.