What key problem did Frederick McKinley Jones solve for road transport with his invention?

Answer

Power and mobility independent of fixed infrastructure

Frederick McKinley Jones is cited as the central figure who invented the first successful self-powered refrigeration unit specifically designed for trucks and trailers in the 1930s and 1940s. Prior to his patented, self-contained, thermostatically controlled system, keeping perishable cargo consistently cold during road transport was exceedingly difficult because it required frequent stopping to resupply external ice. Jones's innovation fundamentally solved the power and mobility challenge by making the cooling process self-sufficient and reliable, effectively decoupling it from fixed external infrastructure like rail icing stations, which was revolutionary for road distribution.

What key problem did Frederick McKinley Jones solve for road transport with his invention?

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