An interlocking or engaging container and container system are presented herein. In particular, the system includes a plurality of adjacently disposed (side-by-side, end-to-end and stacked) containers that are dimensioned to maximize the available space on a pallet, for example, a 463-L Pallet, HCU-6/E Pallet or other pallet. The containers include enlarged wheels, one or more support feet, and a handle assembly. The containers are configured to include a plurality of interlocking or engaging portions such as one or more wheel assembly receiving portions, one or more foot receiving portions, outer extensions or engaging portions, and a handle engaging portion. The Interlocking or engaging portions are configured to matingly engage or abut corresponding portions of an adjacent container and at least partially restrict movement there between.

Described herein are various coupling systems to be used with storage units that are selectively coupled and decoupled. The coupling systems may be used with storage units that are stackable and/or transportable, thus allowing the storage units to function well within a large stationary environment, such as a basement, and also for a subset of the storage units to be selected and easily moved to another location.

A highly efficient bakery tray is provided. The tray includes a square base and is configured to stack upon another like tray in any of three or four orientations to provide three or four different product clearance heights between the trays.

A bakery tray according to one embodiment includes a base a front wall and a rear wall. A pair of opposed side walls extend upward from side edges of the base. Each side wall including a pair of stacking feet and a center projection. Each side wall includes an upper support surface between an inner rail and an outer wall. The inner rail is interrupted by a plurality of pockets arranged to receive the stacking feet and the center projection of an identical tray stacked thereon in a high stack position and in a low stack position. The outer wall includes a plurality of recesses aligned with the plurality of pockets. The tray may provide a substantially constant height support surface between the pockets. Further, stops may be provided at front and rear ends of the upper support surface.

Disclosed herein are modular container systems having child-resistant containers, tray inserts and tray frames. Also disclosed are methods using the modular container systems and methods of storing substances in containers. The containers have a container base and a container cap and provide for child-resistant containers. A user can releasably remove the container cap from container base with a squeeze and lift sequence. For example, the user squeezes opposite sides of the container base, which releases a locking mechanism and allows for removal of the cap by lifting or pulling the container cap off from the container base. The components of the modular container system are modular and stackable. The modular system allow for organized, efficient, accessible and storage of the child-resistant containers. The modular container system also allows for easy counting, sorting and processing of the containers.

Described herein are various coupling systems to be used with storage units that are selectively coupled and decoupled. The coupling systems may be used with storage units that are stackable and/or transportable, thus allowing the storage units to function well within a large stationary environment, such as a basement, and also for a subset of the storage units to be selected and easily moved to another location.

Described herein are various coupling systems to be used with storage units that are selectively coupled and decoupled. The coupling systems may be used with storage units that are stackable and/or transportable, thus allowing the storage units to function well within a large stationary environment, such as a basement, and also for a subset of the storage units to be selected and easily moved to another location.

Aerodynamic members and/or spacers are provided to improve airflow around shells used in processes such as blast freezing. The aerodynamic members can include air control surfaces configured to control airflow so as to reduce a boundary layer of flow over a blast freeze container. The spacers can provide spacing between adjacent blast freeze containers. The spacers and/or aerodynamic members can be incorporated into the blast freeze containers as attachments or integral structures of the containers. Aerodynamic members and spacers can also be combined into articles for placement between blast freeze containers.

A block stacking arrangement that includes a plurality of container receiving slots; a loading space arranged in the direction of gravity below the container receiving slots; a pass-through opening between each of the container receiving slots and the loading space; and a holding device at the pass-through opening, which has at least one holding pawl that is pivotable between a holding position and a release position. The holding pawl has a cutout that, in the holding position, is directed into the pass-through opening.

Described herein are various coupling systems to be used with storage units that are selectively coupled and decoupled. The coupling systems may be used with storage units that are stackable and/or transportable, thus allowing the storage units to function well within a large stationary environment, such as a basement, and also for a subset of the storage units to be selected and easily moved to another location.