Patent attributes
A container having complementary walls that provide 180 nest/stack functionality. Opposing walls, despite being dissimilar, include outer contact surfaces that provide consistent, rigid contact with arms of a storage and retrieval system. One end wall of the container includes alternating inner and outer portions. The other end wall of the container includes complementary alternating inner and outer portions. The outer surface of at least one of the inner portions of one end wall includes a plurality of ribs providing a contact surface. The outer surface of at least one of the outer portions of the opposite end wall has a plurality of ribs extending outwardly to an end wall face. The ribs of the one wall and the end wall face of the opposite wall provide similar contact surfaces for arms of an automated storage and retrieval system.