US Patent Issued to SCHLUMBERGER TECHNOLOGY on Nov. 11 for "Inline bistable valve arrangement for oilfield drilling tools" (British Inventor)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,327, issued on Nov. 11, was assigned to SCHLUMBERGER TECHNOLOGY Corp. (Sugar Land, Texas).

"Inline bistable valve arrangement for oilfield drilling tools" was invented by Edward Richards (Cheltenham, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system includes a bottom hole assembly (BHA), including at least one valve including a bistable actuator coupled to a stem having a valve element, wherein the bistable actuator is configured to move the stem along an axial path of travel to position the valve element in an open position or a closed position relative to a valve seat. The at least one valve also includes a pressure-compensated...