AFRICAN AMERICAN ACHIEVEMENTHistory for every day—and beyond.
January 19, 1954 · Engineering & Refrigeration

Engineering Against the Ice

Frederick McKinley Jones received U.S. Patent 2,666,298 for a method and mechanism that detected excessive frost and initiated a defrosting cycle in refrigeration equipment.

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Then

Frost on an evaporator acted like insulation, weakening heat transfer and cooling.

Now

Automated control remains essential to reliable temperature-managed systems.

Next

Cold-chain innovation must meet rising needs for food, medicine, and resilient infrastructure.

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