Today in 1950, US Patent 2514773 A was issued, an invention of Wallace R. Kromer, assigned to the Superflow Mfg. Corp., for his “Fluid Pressure Dispenser with Gas Pressure Supplying Reservoir Within the Supply Container.” There’s no Abstract, although in the description it includes this summary:

This invention relates to a dispensing device for beer or carbonated beverages and has for its object to provide a dispensing container that is provided with cooling and pressure generating means that are so designed that they occupy but Small space within the container and reduce but little the liquid capacity of the container.

A further object is to provide a dispensing container of simple. compact construction having convenient cooling, pressure generating and dispensing devices attached to its top wall and adapted to be disposed wholly Within and below the top edge of the chime at the top of, the container so that containers embodying the invention may, be stored and shipped without damage to the attachments; v

An additional object of the invention is to provide a simple” and convenient means for utilizing solid carbon dioxide generally known ‘as DryIce, to cool the beverage and to create and maintain a pressure within the receptacle that will prevent escape of carbon dioxide from the beverage and that U will force the beverage through the tap when the faucet valve is opened.

“A further object of the invention is to provide a faucet that can be moved from an inoperative position overlying the top of the. container, to an operative position projecting laterally from the container and that is detachably fastened in its inoperative position so that it may be used as a handle for carrying the container.