US Patent Issued to Fisher Controls International on Sept. 8 for "Control system with dynamic reference pressure" (Iowa Inventor)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,462, issued on Sept. 8, was assigned to Fisher Controls International LLC (Marshalltown, Iowa).

"Control system with dynamic reference pressure" was invented by Michel K. Lovell (Marshalltown, Iowa).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid control system is provided for controlling flow of a process fluid through a pipeline. The fluid control system can include a valve, one or more instruments in fluidic communication with the valve, and a pressurized chamber. In one example, the pressurized chamber contains the one or more instruments. In one example, the pressurized chamber has a dynamically variable pressure, which corresponds to a p...