Chair with ball-casters

摘要

A chair is mounted on ball-casters. Each leg of the chair is mounted on a caster wheel that is surrounded by a ring of small metal balls, such as ball bearings, enabling the chair to roll freely without scuffing or scratching the floor or dulling the floor polish, and making it virtually impossible for the occupant to lean back in the chair with any stability.

主权项

1. A caster wheel and ring assembly comprising a caster wheel; said caster wheel being spherical in shape; an inner housing; said inner housing being cylindrical in shape; said caster wheel being mounted freely rotatably within said inner housing; a cap; said cap having a cylindrical interior; a plurality of ball bearings; said plurality of ball bearings being disposed within said cap; said inner housing being rotatably mounted within said plurality of ball bearings within said cap.