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Charles C. Hansen
Charles C. Hansen () var sønn av
Charles C. Hansen had been mechanical engineer with the Ingersoll-Rand Company of Phillipsburgh, New Jersey, for thirty-five years when he died in 1938. He is credited with over 100 patents on compressed-air tools and other drilling equipment.
Hansen studied at the Norwegian university and at the technical schools of Berlind and Zurich, becoming a specialist in marine engineering.
After spending several years in the early 1890`s along the Canadian side of the Great Lakes, he was employed on the New York Barge Canal. Later he was associated with a firm manufactoring Corliss steam engines used to drive air compressors, and he went to Ingersoll-Rand in 1903 and assisted in the construction of their Phillipsburgh plant.
When transferred to the rock drill engineering department, Hansen was put to work perfecting tools used extensively in mining and canal construction. He designed, among others, most of the drilles used on the Panama and Barge canals.
- Kenneth Bjork. Saga in Steel and Concrete. Norwegian Engineers in America, page 395.
- Norwegian-American Technical Journal vol 2, no 1, page 15 (March 1929) and Minneapolis Tidende, November 22, 1911