Apparatus for treating air
- Filed
- 16 September 1904
- Granted
- 2 January 1906
- Assignee
- Buffalo Forge Co
Mechanical engineering
Willis Haviland Carrier: inventions and patents
Known for Spray-type air conditioning and psychrometric formulaeNationality Born near Angola, New York, United States26 November 1876 to 7 October 1950
Willis Haviland Carrier, born near Angola in western New York, built spray-type air conditioning equipment described in his patent Apparatus for Treating Air, granted in 1906. The National Inventors Hall of Fame says he presented his Rational Psychrometric Formulae to the American Society of Mechanical Engineers in 1911. In 1915 he and other engineers founded the Carrier Engineering Corporation.1,2
Patents
Inventions
- Spray-type air conditioning equipment, 1906. Equipment for controlling temperature and humidity, first applied at a Brooklyn printing plant.1
- Low-pressure centrifugal refrigeration machine. A refrigeration machine using a nontoxic, nonflammable refrigerant.1
Recognition
- 1985 Inducted into the National Inventors Hall of Fame1
Sources
- National Inventors Hall of Fame, Willis Haviland Carrier (accessed 2026-10-27)
- Google Patents, US808897A Apparatus for treating air (accessed 2026-10-27)