ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,941, issued on July 28, was assigned to HAMMELMANN GmbH (Oelde, Germany).
"Sealing device for a rod" was invented by Egbert Helmig (Ennigerloh, Germany) and Christian Stoffers (Rheda-Wiedenbruck, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sealing device for sealing a rod that is moveable movable in a high-pressure chamber of a pressure-resistant housing filled with a liquid medium, between the high-pressure chamber and a low-pressure region. The sealing device includes a sealing cylinder and a sealing ring for statically sealing a first annular gap and which is arranged resting on an outer jacket surface of the sealing cylinder near th...