Patent attributes
Sortation systems and methods are described, in which the sortation systems may include a cylindrical sortation tower. The cylindrical sortation tower may include a plurality of sortation levels, and each of the sortation levels may include a plurality of sortation positions arranged around a periphery of the level. Each sortation position may include a sortation container. The cylindrical sortation tower may also include one or more horizontal tracks and vertical tracks, and each of the sortation levels may further include a circumferential track. Shuttles may traverse the horizontal, vertical, and circumferential tracks to transport items to desired sortation containers. Further, robotic arms may remove completed sortation containers from and add empty sortation containers to the cylindrical sortation tower.