ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,356, issued on July 1, was assigned to SAMSON AG (Frankfurt am Main, Germany).
"Control valve unit" was invented by Stefan Kolbenschlag (Darmstadt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A control valve unit includes a valve rod sealed from a valve housing via a seal assembly. The seal assembly has a packing, received axially between a pressure sleeve and a counter bearing on the valve housing. The pressure sleeve is movably and axially mounted via a pressing element relative to the valve housing and transmits a pressing force to the pressure sleeve by a spring element to the packing. The spring element is supported on a pretensioning...