ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,487, issued on Nov. 4, was assigned to Herrenknecht (Schwanau, Germany).
"Drill head for creating a borehole in the ground" was invented by Tobias Gerhardt (Teningen, Germany) and Boris Jung (Schutterwald, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drill head for creating a substantially vertical borehole in the ground, includes a body connected to a rotational drive of a drilling device; drilling tools on the body, for loosening the ground at a working face of the borehole; suctioning elements for leading away the loosened ground, which can be connected to a pump, and the suctioning elements include an opening region on the body and wi...