Today in 1949, US Patent 2462930 A was issued, an invention of Victor Alvear, for his “Keg Closure.” There’s no Abstract, but the description claims that the “object of the present invention to provide a bung for a keg in which the stopper is a fixture on the keg and cannot become lost and the chance of its becoming damaged is reduced to a minimum.” Alvear also writes that in addition, additional reasons for his patent include the “means for bringing the stopper or plug to alignment with the bung hole by gravity where it can easily be moved into closed position, the “means for readily grasping it with a tool and with means for sealing the opening in the bung,” “eliminate hammering and pounding on the barrel head and to eliminate spearing of corks,” to “facilitate tapping of the keg,” “provide a stopper that is sanitary, simple in construction and economical to manufacture,” “provide a stopper that cannot leak or blow out regardless of the pressure in the keg thereby providing an air-tight seal,” and “to provide a stopper that is self-sealing.” That is one impressive keg stopper.
