ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,736, issued on Aug. 26, was assigned to ABB Schweiz AG (Baden, Switzerland).
"Magnetic force compensator for a pneumatic positioner" was invented by Sebastian Breisch (Neckarsteinach, Germany), Arda Tueysuez (Darmstadt, Germany) and Ondrej Frantisek (Heddesheim, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A magnetic force compensator for at least partially compensating a closing force required to shift a valve of a pneumatic positioner into a closed position using a magnetic device, the magnetic device including a permanent magnet; and a magnetic counterpart; wherein the magnetic device and the magnetic counterpart are configured to inter...