ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,706, issued on April 7, was assigned to Boart Longyear Manufacturing And Distribution Inc. (Salt Lake City).
"Underground drill rig and systems and methods of using same" was invented by Paul Clausen (Marden, Australia), Shane Fox (Morphett Vale, Australia), Lee Gagne (Cobalt, Canada), Steve Corboy (Morphettville, Australia), Geoffrey John Moroney (Ellenbrook, Australia) and David Barrett (Albany, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes drilling a first bore into a formation to a first depth, the bore having a bore wall and a first diameter that is sufficient to receive a casing pipe. A casing pipe is driven into t...