ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,307, issued on Feb. 17.
"Medium installation of a vehicle, emptying device for a medium line, and vehicle with the medium installation" was invented by Alexander Mayerhofer (Markt Taschendorf, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An emptying device for a medium line of a vehicle, such as a recreational vehicle, can be connected between a medium tank of the vehicle and the medium line to be emptied. A first non-return valve is arranged in a first connecting line between the medium tank and the medium line to be emptied and permits a flow of the medium from the medium tank into the medium line, but blocks a reverse flow. A second con...