US Patent Issued to Baker Hughes Oilfield Operations on Dec. 9 for "Side pocket mandrel with direct check valves" (Texas Inventor)

ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,619, issued on Dec. 9, was assigned to Baker Hughes Oilfield Operations LLC (Houston).

"Side pocket mandrel with direct check valves" was invented by Donavan Brown (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A side pocket mandrel for use in a gas lift system includes a primary flow bore that is linearly aligned with the primary longitudinal axis of the production tubing. The side pocket mandrel also includes valve pocket that is laterally offset from the primary flow bore, where the valve pocket includes a port that extends through the side pocket mandrel to the annular space (annulus) to place the interior of the valve pocket in fluid co...