Patent attributes
A rack and container assembly and the associated method of holding the containers in the rack. The rack has frame elements that define at least one slot of a first width. The frame elements are rounded in cross-section having a first radius of curvature. Each of the containers has an exterior surface of a second width that is greater than the width of the slots in the rack. An arcuate groove is formed in the exterior surface of each container. The arcuate grooves enable the containers to pass into the slots. Each arcuate groove has a cross-section with a second radius of curvature that is at least as large as the first radius of curvature of the frame elements that form the slot. When the containers are placed in the slots, the only area of the containers that physically contacts the rack is the shallow area of the arcuate groove.
