US Patent Issued to EPIROC ROCK DRILLS AKTIEBOLAG on April 22 for "Pulsed power drilling tool and a method for breaking a mineral substrate" (Swedish Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,573, issued on April 22, was assigned to EPIROC ROCK DRILLS AKTIEBOLAG (Orebro, Sweden).

"Pulsed power drilling tool and a method for breaking a mineral substrate" was invented by Harald Merkel (Orebro, Sweden) and Erik Jakobsson (Orebro, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pulsed power drilling tool configured for passing a pulsed electrical current through a mineral substrate to break the mineral substrate, the drilling tool including: a pulsed power generator for generating high voltage current pulses, a drill head including at least one pair of a first electrode and a second electrode, the first electrode including a first sol...