Frederick Jones (1892 - 1961) was one of the most prolific Black inventors ever, holding more than 60 patents in a variety of fields. Frederick Jones patented more than sixty inventions, however, he is best known for inventing an automatic refrigeration system for long-haul trucks in 1935 (a roof-mounted cooling device). Jones was the first person to invent a practical, mechanical refrigeration system for trucks and railroad cars, which eliminated the risk of food spoilage during long-distance shipping trips. The system was, in turn, adapted to a variety of other common carriers, including ships.
Frederick Jones was issued the patent on July 12, 1940 (#2,303,857). Frederick Jones also invented a self-starting gas engine and a series of devices for movie projectors: adapting silent movie projectors for talking films, and developing box office equipment that delivered tickets and gave change.