ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,331, issued on Dec. 30, was assigned to THE ROBERTS BV (Nieuwpoort, Belgium).
"Device for lifting a steel reinforcement mat" was invented by Daan Gilleman (Maarkedal, Belgium) and Jan Nouwen (Hellebecq, Belgium).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for lifting a steel reinforcement mat includes a grid of parallel rods in a first direction and, placed thereon and fastened permanently, parallel rods in a second direction, each according to a predetermined mesh width. The device has a hoisting frame suitable for being secured to a hoist. The hoisting frame has supporting elements on opposite sides positioned in such a way that when th...