ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,956, issued on Oct. 21, was assigned to Centerline Manufacturing LLC (Winnsboro, Texas).
"Duplex drive head" was invented by Cory L. Miller (Winnsboro, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein are embodiments of a drive head for use with positive displacement pumps. In one embodiment, a drive head for use with a pump comprises a central shaft having a first end and a second end; first and second drive rod connection points coupled to the central shaft proximate the first and second ends, the first and second drive rod connection points being located radially outside of a centerline of the central shaft; first and second ...