ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,366, issued on July 1, was assigned to Roxtec AB (Karlskrona, Sweden).

"Combination of split plate and sleeve, and a sleeve" was invented by Ronnie Pettersson (Karlskrona, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "Combination of a plate and a sleeve (1, 34) to be received at an opening of a transition. The plate is a split plate (2, 35) formed of two plate parts, forming an opening when joined to each other. The sleeve (1, 34) has a through opening to be placed in line with the opening of the transition and the opening of the split plate (2, 35). Said through opening of the sleeve (1, 34) is adapted to receive a seal. The sleeve (1, 34) i...