ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,428, issued on July 14, was assigned to Flowco MasterCo LLC (Houston).
"Unibody shift rod plunger" was invented by Mitchell A Boyd (Haslet, Texas) and Garrett S. Boyd (Granbury, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A unibody bypass plunger has a unitary one-piece hollow body, a valve cage, a clutch, and a shift rod with a valve located on a lower portion of the shift rod. A fishneck is provided on an upper end of the shift rod. The fishneck may comprise a cylindrical member that is attached to the upper end of the shift rod. Flow ports are provided on both the upper and lower portions of the one-piece hollow body. The flow ports may ...