Oscar H. Banker

An Armenian by descent, Oscar Banker was born as Asadur Sarafyan in the Ottoman Empire in 1895. Asadur left the Ottoman Empire as a teenager and settled in Chicago. He was also mentioned in Ralph Nader's book Unsafe at Any Speed. Banker was also noted for his contribution to aviation mechanics. He invented the primary control of the first Sikorsky helicopter. The invention eventually led to the mass production of helicopters during World War II. Bob Hull has published Oscar H. Banker's memoirs titled ''Dreams and Wars of an American Inventor: An Immigrant's Romance'' in 1983. In his memoirs Banker writes: "America is yet the greatest country existing for opportunity, for achievement and if a person can endure the hardships, ridicule, rebuffs, whatever and keep on going! That is what counts. And absolutely nothing else." Oscar Banker had a son named Oscar Banker Jr. Oscar Banker died in Cleveland, Ohio in 1979 at the age of 83. ==Notable patents==

• Band Saw Sharpener U.S. Patent Number 1,634,281, filing date: 3 March 1924, issue date: 5 July 1927. • Change Speed Transmission U.S. Patent Number 1,985,884, filing date: 14 December 1932, issue date: 1 January 1935. • Change Speed Transmission Mechanism U.S. Patent Number 2,198,072, filing date: 31 May 1934, issue date: 23 April 1940. • Automatic Transmission U.S. Patent 2,199,095, filing date: 18 October 1934, issue date: 30 April 1940. • Gun Type Inoculator U.S. Patent Number 3,518,990, filing date: 2 May 1968, issue date: 7 July 1970. • Self-cleaning Apparatus for Purifying Sea Water by Distillation U.S. Patent Number 2,735,807, filing date: 20 October 1951, issue date: 21 February 1956. • Change-Speed Gearing for Aircraft Propellers U.S. Patent Number 2,348,716, filing date: 15 May 1941, issue date: 16 May 1944. • Power-steering Mechanism U.S. Patent Number 2,977,813, filing date: 13 April 1955, issue date: 4 April 1961. • Relief Valve for High Pressures U.S. Patent Number 2,989,072, filing date: 24 April 1959, issue date: 20 June 1961. • Automatic Light Switch and Battery Disconnect U.S. Patent Number 3,963,941, filing date: 16 April 1975, issue date: 15 June 1976. • Inking Mechanism for Multicolor Printing Press U.S. Patent Number 2,022,840, filing date: 7 July 1927, issue date: 3 December 1935. ==References==