ALEXANDRIA, Va., Oct. 18 -- A.R. Wilfley & Sons, Commerce City, Colorado, has been assigned a patent (9,790,960) developed by Jack Postuchow, Houston, for a "centrifugal pump with governor actuated seal." The abstract states: "The present invention relates to centrifugal pumps, and more specifically to a centrifugal pump device with a governor actuated cartridge seal and a method of attaching a centrifugal pump device with a governor actuated cartridge seal. The centrifugal pump comprises a seal . . .