Keith W. "Tant" Tantlinger, 92, an engineer and inventor whose designs include the corner castings found on every shipping container, died in his home in Escondido, Calif., on Aug. 27. Tantlinger, who worked for Malcom McLean as vice president of engineering and research at Pan Atlantic Steamship Co. (which became Sea-Land Service), developed the ubiquitous corner casting and twist-lock system used to load, unload and secure containers to ships, truck chassis and rail cars and oth...