ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,333, issued on Nov. 11, was assigned to PRUITT TOOL & SUPPLY Co. (Fort Smith, Ark.).
"Tall flange rubber adapter" was invented by Grant Pruitt (Fort Smith, Ark.) and Cris Braun (Van Buren, Ark.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The tall flange rubber adapter attaches to the inner barrel of a rotating head assembly. A rubber attaches to the tall flange rubber adapter. The rubber secured to the rubber adapter also rotates with the inner barrel thus maintaining the seal with the drill string to divert the drilling fluid from the well to the outlet flange. Fasteners install upward into the adapter and the inner barrel to secure the rubber a...