ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,989, issued on June 23, was assigned to Freudenberg Flow Technologies LLC (Houston).
"Flange connection" was invented by Przemyslaw Lutkiewicz (Drammen, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "A flange connection system, including a pair of flange rings each including a neck portion and a radially extending flange portion. The radially extending flange portion includes a distal face including a contact surface that protrudes from a remainder of the distal face. The radially extending flange portion includes a plurality of circumferentially spaced bolt holes extending parallel to a center axis. The distal face including a first seal poc...