Today in 1954, US Patent 2679346 A was issued, an invention of Rudolph H. Breeback, assigned to Crown Cork & Seal Co., for his “Filling System.” There’s no Abstract, though it’s described this way in the application, “The present invention relates to filling systems and, more particularly, to filling systems used in the bottling of carbonated beverages.” And that’s pretty vague, but there’s no other simple sentence or even paragraph that explains it in a nutshell way. Basically, you have to read the whole application.