Keith Tantlinger
Keith Tantlinger was an American mechanical engineer who, working with Malcom McLean, designed the corner castings and twist-lock that let containers be lifted, stacked, and locked together.
What they did and why it matters
Tantlinger designed the hardware that makes every standard container interchangeable, the reason a box can move from ship to crane to truck chassis to rail car without repacking. His corner fittings and twist-lock let containers be lifted by spreaders and secured to each other and to chassis. He persuaded McLean to release the patents royalty-free, and the design became the basis of international standards. When a brand books a 40-foot container or a drayage carrier picks up a box at a port, the equipment works because of the standards he enabled.