ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,989, issued on Aug. 11.
"Portable truss cable roofing safety apparatus and method" was invented by Robert A. Austin (Hobe Sound, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A portable truss cable roofing safety apparatus and method to assist users while working on the roof of a building structure. The portable apparatus provides a pair of similar opposing vertical trusses mounted adjacent opposite sides of the building structure. At least one brace is adaptable for securing each of the pair of vertical trusses to the building structure. A cable is connected to and extends between the pair of vertical trusses. An automatic belay device slidab...