Ron Cobb, a production designer known for designing Back to the Future’s time-traveling DeLorean, the Nostromo in Alien, and aspects of Conan the Barbarian, has died. He was 83. [caption id="attachment_2410263" align="alignnone" width="720"] Ron Cobb (Photo by Gerrit Alan Fokkema/Fairfax Media via Getty Images).[/caption] Robin Love, Cobb’s wife of 48 years, reported that Cobb died Monday of Lewy body dementia, according to THR. Cobb was most known for his production design work on numerous sci-fi and action films.