US Patent Issued to Halliburton Energy Services on Nov. 3 for "Suction retainer for a check valve" (Texas Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,866, issued on Nov. 3, was assigned to Halliburton Energy Services Inc. (Houston).

"Suction retainer for a check valve" was invented by Stephen Michael Greci (Carrollton, Texas), Hadi Arabnejad Khanouki (Carrollton, Texas) and Ryan W. Mcchesney (Carrollton, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Check valves with suction retainers and methods of using the same. A check valve has a valve housing with a flow path. A restriction in the flow path narrows the diameter of the flow path. A blocking member in the flow path moves in the flow path to block the restriction and at least partially seal the flow path. A suction retainer has a longitu...