US Patent Issued to VALLOUREC OIL AND GAS FRANCE, NIPPON STEEL on June 17 for "Self-locking threaded connection partially in non-locking engagement" (French Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,851, issued on June 17, was assigned to VALLOUREC OIL AND GAS FRANCE (Aulnoye-Aymeries, France) and NIPPON STEEL Corp. (Tokyo).

"Self-locking threaded connection partially in non-locking engagement" was invented by Thimothe Delbosco (Meudon, France), Wesley Ott (Meudon, France) and Scott Granger (Meudon, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A threaded connection comprising: a first tubular component (1) having a first male threaded portion (16) and a second male threaded portion (17), a root width in the first male threaded portion (16) decreasing in a direction oriented a first pipe body (3), the root width being constant in the se...