US Patent Issued to Schlumberger Technology on Feb. 24 for "Lock sequencing system for a blowout preventer" (French Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,044, issued on Feb. 24, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"Lock sequencing system for a blowout preventer" was invented by Pascal Berthaud (Beziers, France), Jean-Luc Pujol (Beziers, France) and Benoit Jauzion (Beziers, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lock sequencing system includes a first fluid line that couples a fluid source to a first portion of a piston cavity of a blowout preventer and to a hydraulic motor of a lock. A first discharge valve is positioned along the first fluid line to delay delivery of fluid to the hydraulic motor of the lock to cause sequential closure of a ram coupled ...