David Crosthwait was an electrical and mechanical engineer and one of the leaders in the United States in the field of heat transfer, ventilation and air conditioning. His achievements include the receipt of 39 U.S. patents and 80 foreign patents for his inventions. Mr. Crosthwait also designed the heating systems for Radio City Music Hall and Rockefeller Center in New York City and authored a heating and cooling manual that detailed standards and codes.
Crosthwait received his B.S. degree from Purdue University in 1913, then went on to get a Masters of Engineering. He served as Director of Research Laboratories for C.A. Dunham and Co. from 1925-1930, then consulted for the company until 1971. Beginning in 1969, Crosthwait taught steam heating theory and control systems at Purdue University. He received an honorary doctorate from Purdue in 1975.
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