William DzusWilliam Dzus (b.1895 in Ukraine - d.1964 in New York, born Volodymyr Dzus or Dzhus (uk:Володимир Джусь) was an American engineer of Ukrainian descent, and the inventor of the Dzus fastener

Dzus fastener

Dzus is a proprietary name for a type of quarter-turn fastener often used to secure skin panels on aircraft.It was invented and patented by a native Ukrainian William Dzus in the early 1930s. Quarter-turn fasteners are used to secure panels in equipment, airplanes, motorcycles, and racing cars...

, also known as the quarter-turn fastener. He was also one of the founders of the Ukrainian Institute of America, a cultural foundation, for which he purchased the Harry F. Sinclair House

Harry F. Sinclair House

The Harry F. Sinclair House is a mansion at 2 East 79th Street at Fifth Avenue, Manhattan, New York City that houses the Ukrainian Institute of America, which promotes art and literature by hosting exhibitions open to public, among other means.- History :...

(its current home).