US Patent Issued to VAT HOLDING on March 4 for "Vacuum valve for providing a symmetrical fluid flow" (Swiss, Austrian Inventors)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,556, issued on March 4, was assigned to VAT HOLDING AG (Haag, Switzerland).

"Vacuum valve for providing a symmetrical fluid flow" was invented by Florian Ehrne (Frumsen, Switzerland), Martin Netzer (Bludenz, Austria) and Hanspeter Frehner (Sevelen, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a regulating vacuum valve having a first valve seat having a first valve opening defining a first opening axis and a first sealing surface surrounding the first valve opening, and a first valve disk having a first contact surface corresponding to the first sealing surface. The valve includes a drive unit coupled to the first valve dis...