The object
The lever-driven wheelchair lets users travel efficiently over rough ground while retaining ordinary push-rim use, providing a durable mobility device designed around the actual terrain and repair constraints of underserved communities. Its mechanical design directly responds to the terrain and repair needs of working users.
01
What Amos did
Invented the Leveraged Freedom Chair, an all-terrain wheelchair for low-resource settings.
02
Why it matters
The chair won an R&D 100 award and became a documented global-accessibility product.
03
Living-status check
MIT's March 2026 news profile identifies Winter as a current mechanical-engineering professor.