ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,873, issued on Dec. 16, was assigned to Flowco MasterCo LLC (Houston).
"Unibody bypass plunger and valve cage" was invented by Garrett S. Boyd (Granbury, Texas) and Mitchell A. Boyd (Haslet, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bypass plunger includes a unitary or one-piece hollow body-and-valve cage, which retains a dart valve within the valve cage portion of the hollow body using a threaded retaining nut that is secured to the hollow body by crimple detents. A series of helical grooves surround the central portion of the outer surface of the hollow body of the plunger to control spin during descent. A canted-coil-spring disposed ...