ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,864, issued on Aug. 19, was assigned to Epiroc Industrial Tools and Attachment LLC (Delhi, Iowa).
"Railroad track rail drill" was invented by Jeffery Weatherill (Portland, Ore.) and Gabe West (Portland, Ore.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rail drill drive train can include a common drive end between a single drive motor and a common gear. A speed train end can extend from the common gear to rotate the drill spindle. A feed train end can independently extend from the common gear to advance and retract the drill spindle. The speed train end can include a sprag gear so that, without unmeshing any gears, the drill spindle is not unnece...