US Patent Issued to Sandvik Mining and Construction Tools on Sept. 1 for "Earth boring rotary bit and method" (Indian Inventor)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,473, issued on Sept. 1, was assigned to Sandvik Mining and Construction Tools AB (Sandviken, Sweden).

"Earth boring rotary bit and method" was invented by Bala Balaji Devireddi (Pune, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "An earth boring rotary bit and method of manufacturing the same is provided. The rotary bit is intended for rotary drilling and includes a bit body having three uniform legs and three uniform rolling cone cutters rotatably mounted to the legs. The three cone cutters have a uniform angular offset (Ao) and a linear offset (Lo). Further, the magnitude of the angular offset is 2-17deg and the magnitude of the linear offs...