ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,151, issued on Feb. 24.
"Adjustable displaced differential drive system" was invented by Gregory James Newell (Cascais, Portugal).
According to the abstract* released by the U.S. Patent & Trademark Office: "An adjustable displaced differential (ADD) drive unit is disclosed. The ADD drive unit includes a first drive wheel connected to a first pivot and having a vertical axis that is offset laterally from the first wheel traction point. The ADD drive unit includes a second drive wheel connected to a second pivot having a vertical axis that is offset laterally from the second wheel traction point. The ADD drive unit includes differential steering, where if the speed of rotation of t...