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Charles F. Kettering

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Charles Franklin Kettering was a prolific American inventor, engineer, and businessman. He held 186 United States patents during his career.

Time-magazine-cover-charles-kettering
Time-magazine-cover-charles-kettering

Kettering was known for being a practical inventor. He did not just study theory in a lab. Instead, he worked closely with sales teams. He believed they had a real understanding of what customers wanted. This approach helped him create tools that people actually used. He eventually became the head of research at General Motors. He held this leadership position from 1920 until 1947.

Kettering's career began in earnest at the National Cash Register company, also known as NCR. Between 1904 and 1909, he earned 23 patents while working there. He invented the electric cash register in 1906. This device made the job of sales clerks much easier. He also developed an early system for easy credit approval. In 1907, his colleague Edward A. Deeds invited him to tinker with automobiles. They met at night and on weekends in Deeds's barn. This group of engineers became known as the "Barn Gang." Kettering was often called "Boss Ket" by his teammates.

In 1909, Kettering left NCR to focus entirely on automotive technology. He and the Barn Gang formed the Dayton Engineering Laboratories Company, or Delco. One major problem they solved involved how cars started. Early automobiles required a manual hand crank to start the engine. This process was physically difficult and sometimes dangerous. If the engine kicked back, it could cause serious injury. In February 1911, Delco developed a practical electric self-starter. Kettering designed an electrical system that performed three essential functions. It acted as the starter, the producer of sparks for ignition, and the source of current for lighting.

Time-magazine-cover-charles-kettering
Time-magazine-cover-charles-kettering

Kettering's automotive innovations led to massive industrial growth. In 1912, Henry M. Leland ordered 12,000 self-starters for Cadillac models. This required Delco to move from research into large-scale production. The invention was so successful it won the Dewar Trophy in 1913. In 1916, Kettering sold Delco to the United Motors Company. The sale price was $2.5 million. This success helped him lead various companies, including Flxible Sidecar Company. He also helped found the Engineers Club of Dayton in 1914. This club recognized the high level of engineering skill in the city.

During his time at General Motors, Kettering explored many different scientific fields. He led research into air-cooled engines between 1918 and 1923. These engines used fans to force air across copper fins to dissipate heat. While his specific "copper-cooled" version was not a commercial success, the concept of air-cooling is used today. He also worked with the DuPont Chemical Company on several projects. He helped develop Duco lacquers, which were the first practical colored paints for mass-produced cars. He was also responsible for inventing Freon. Freon is a refrigerant used in air conditioning and refrigeration systems.

KetteringAerialTorpedo
KetteringAerialTorpedo

Kettering also made significant contributions to fuel science. He believed that adding certain substances could make engines more efficient. He wanted to increase the octane rating of gasoline. In December 1921, Kettering and Thomas Midgley Jr. identified tetraethyllead, or TEL, as an effective additive. Using TEL at a dilution of one thousand to one eliminated engine knocking. This led to the founding of the Ethyl Corporation in 1923. However, the use of leaded gasoline had long-term consequences. The combustion of this fuel released large amounts of lead into the atmosphere. Because lead is neurotoxic, leaded gasoline has been widely banned since the late 1990s.

Beyond cars, Kettering's inventions touched many other areas of life. In 1918, he developed the "Bug," which was an aerial torpedo. This device is considered the world's first aerial missile.

KetteringAerialTorpedo
KetteringAerialTorpedo

He also worked on lightweight two-stroke diesel engines. These engines revolutionized the heavy equipment and locomotive industries. His son, Eugene Williams Kettering, continued this legacy at General Motors. Eugene helped develop important diesel engines for locomotives. Charles Kettering also applied his research mind to medicine. In 1945, he helped found the Memorial Sloan Kettering Cancer Center. This center applies industrial research techniques to the study of cancer.

Kettering's life was defined by a belief in persistence. He famously said that failures are like "finger posts" on the road to achievement. He believed people would remember a success more than a failure. His many honors included the Franklin Medal and the Hoover Medal. He was also elected to the United States National Academy of Sciences in 1928. In 1998, the General Motors Institute was renamed Kettering University to honor his legacy. His work helped build the foundation for much of modern automotive and industrial technology.

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