sentences:  In January 1964, David R. Snoeyenbos, while working for General Motors Corporation, revised the design of the air caster, and filed a patent for a “reversible air bearing support”.General Motors Corporation manufactured air casters, or “air bearings” for several years, then sold the rights to Snoeyenbos, who moved to Decatur, Illinois to found Airfloat.He launched his company from his brother’s manufacturing shop in 1964, and officially incorporated as the Airfloat Corp in 1967.