Robert Hubbard, of Minnetrista and Fountain Hills, Ariz., improved grain elevator safety around the world as a Cargill executive.
Hubbard, a Navy combat veteran of World War II, died on June 29 in Fountain Hills.
He was 86.
Many of his innovations aimed at reducing the risk of grain explosions live on in Cargill elevators and other companies' facilities today.
"His work definitely contributed to increased grain elevator safety around the world," said Ron Christenson, corporate vice president and chief technical officer for Cargill.
A graduate of Roosevelt High School in Minneapolis, he received his bachelor's degree in chemical engineering from the University of Minnesota in the early 1940s.
During the war, he was a torpedo officer on the submarine USS Manta in the Pacific Theater. Later in life he often was invited to speak at schools and ceremonies in Minnesota and Arizona and told audiences that among the 10 officer trainees with whom he was grouped, he was the only survivor of the war.
"He felt that he had a purpose in life, and he was purposeful," said his daughter Julianne Peterson of Wayzata.