US Patent Issued to NATIONAL OILWELL VARCO on Oct. 6 for "Long stroke parallel pump" (Oklahoma, Texas Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,746, issued on Oct. 6, was assigned to NATIONAL OILWELL VARCO LP (Houston).

"Long stroke parallel pump" was invented by Kyle Christopher Chady (Broken Arrow, Okla.), James Sterling Evans (Owasso, Okla.), Travis Lee Bolt (Travis, Texas) and Shriram Pushparaj Patil (Richmond, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pump system may include a drive shaft extending along a longitudinal axis and supplying rotation about the longitudinal axis, a gear system operably coupled to the shaft for changing the orientation of the rotation, and a slider-crank mechanism. The slider crank mechanism may include a rotating member assembly mechanically cou...