US Patent Issued to Percheron Manufacturing on Sept. 9 for "Chamfered sinker bar connection" (Texas Inventors)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,661, issued on Sept. 9, was assigned to Percheron Manufacturing (Odessa, Texas).

"Chamfered sinker bar connection" was invented by Mark Nease (Odessa, Texas) and Clois Montague (Odessa, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sinker bar includes a cylindrical body having an outer surface terminating at a pin end. The pin includes a transition surface extending from an outer surface of the sinker bar and including a chamfered surface extending from the outer surface, an arcuate surface extending from the chamfered surface, and a straight-line surface extending from the arcuate surface, a tapered section extending from the straight-lin...