ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,955, issued on Dec. 30, was assigned to Baker Hughes Oilfield Operations LLC (Houston).
"Annular seal assembly with axial load decoupling feature" was invented by Samuel H Cheng (Katy, Texas), Greg Dunn (Houston), Daryl Attaway (Houston), Joseph Pallini (Tomball, Texas) and Amini Shakib (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "An annular seal system for sealing between a casing hanger and a wellhead housing, the system including an actuator ring having a rigid portion and a flexible portion, and a lockdown ring positioned adjacent the actuator ring. The annular seal system further includes a seal assembly capable of moving between a d...