ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,405, issued on April 14, was assigned to Fisher Controls International LLC (Marshalltown, Iowa).
"Rotary bearing maintenance indication" was invented by Bryan Quinn Leger (Marshalltown, Iowa).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems, apparatus, articles of manufacture, and methods for rotary bearing maintenance are disclosed. An example apparatus includes a valve body defining a fluid passageway; a flow control member in the fluid passageway; a drive shaft coupled to the flow control member, the drive shaft extending through a shaft bore defined in the valve body; and a bearing around at least a portion of the drive shaft. The bearing ...