US Patent 7434820 Yarn Storage Apparatus

A yarn storage apparatus that is portable, capable of winding and storing a plurality of yarns, and also capable of storing other items is disclosed. The apparatus is supported on two inverted U-shaped legs, each having omnidirectional casters. A plurality of removable and interchangeable spools are disposed between the legs. Each spool is motor driven in a choice of “wind”, “stop”, and “neutral” positions. Each spool is provided with non-slip coating and yarn orifice and yarn clamp, which can be selectively retained in open or closed position.