ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,176, issued on May 27, was assigned to Georg Fischer Rohrleitungssysteme AG (Schaffhausen, Switzerland).
"Butterfly valve housing" was invented by Stefan Buergi (Basadingen, Switzerland), Alexander Ernst (Thayngen, Switzerland), Timo Jaeckle (Hilzingen, Germany), Lars Mayer (Singen, Germany) and Maxim Wasetzki (Singen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Butterfly valve housing for a butterfly valve having a closing element mounted rotatably in the housing, wherein receiving openings are arranged in the housing between the two flange connection discs and between the reinforcement structure, wherein the receiving openings are direc...