ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,103, issued on Jan. 13, was assigned to OptionX Holdings Pty Ltd (Burleigh Waters, Australia).
"Microtunneling apparatus" was invented by Albert Fourie (Burleigh Waters, Australia), Allen Henley (Burleigh Waters, Australia), Stuart Ronald Harrison (Burleigh Waters, Australia) and Gregory Alan Geldard (Mount Lofty, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "This invention relates to a reamer assembly (6) for enlarging a substantially horizontal pilot hole (14) in the ground to produce a bore hole (18), including a cutter (21) which is rotatable about an axis X-X. A gear box (20) is positioned on a first side of the cutter (21) for inter...