ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,293, issued on May 6, was assigned to Purple Line Ltd. (Great Britain).
"Caravan mover system" was invented by Ben Hawkins (Ipswich, Great Britain), Jonathan Harrison (Ipswich, Great Britain) and Yuxian Tao (Aberdeen, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an adjustable control system for a caravan moving system in which the caravan movers each include a brushed motor. The adjustable control system can control two caravan movers (10) mounted on a single axle caravan or two caravan movers mounted on a twin axle caravan or four caravan movers mounted on a twin axle caravan (quad system). The carav...