Today in 1969, US Patent 3422448 A was issued, an invention of Mack S. Johnston, for his “Tapping Device for Beer Kegs and the Like.” There’s no Abstract, but here’s his introduction in the description:
The present invention relates to a new improved tapping device for drawing fluid such as beer from containers such as beer kegs or barrels, using a gas to drive the fluid from the container. In particular, the invention relates to a new improved tapping device usable with conventional beer kegs and comprising a sub-unit, called a keg adapter, which constantly seals the keg, and a subunit, called a coupler, which is attached to the beer dispensing apparatus in a restaurant or tavern and is readily connected to the keg adapter so that the tapping device is automatically in operating condition.
The Duke of Dunkel says
1969? How the heck did anyone get through college prior to 1969?
Remember the kegs with holes at both the top & bottom?