ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,736, issued on April 7, was assigned to FCI Holdings Delaware LLC (Wilmington, Del.).
"High capacity rock bolt" was invented by Anthony Dodds (New South Wales, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A friction bolt (10) includes a first generally circular tube (12) having an internal diameter and defining a longitudinal split, the tube being radially expandable. The bolt has a first leading end (16) for insertion into a borehole (50), a second end defining a head (18), and a second generally circular tube defining a longitudinal split and having an external diameter which is substantially the same as or larger than the internal dia...