US Patent Issued to VALLOUREC OIL AND GAS FRANCE, NIPPON STEEL on July 29 for "Self-locking threaded connection partially in non-locking engagement" (French Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,171, issued on July 29, was assigned to VALLOUREC OIL AND GAS FRANCE (Aulnoye-aymeries, France) and NIPPON STEEL Corp. (Chiyoda-ku, Japan).

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

According to the abstract* released by the U.S. Patent & Trademark Office: "A flush self-locking threaded connection partially in a non-locking engagement comprises a first and a second tubular component provided respectively with male and female threaded zone at their respective ends. First portions of the male and female threaded zones with varying thread widt...