A tray includes a base and a plurality of walls extending upward from the base. In one feature, a first wall of the plurality of walls may include a projection outward from the first wall. The projection is aligned with an upper edge of the first wall, such that the projection is outward of a portion of the upper edge of the first wall. The projection of an identical upper tray stacked on the tray would interlock with the upper edge of the first wall to resist outward deflection of the upper edge of the first wall of the tray. In another feature, a platform may extend inward from at least one of the walls to support smaller trays stacked thereon. In another feature, an exterior of each of the side walls may include an interlocking recess for receiving automated handling equipment for supporting the tray.

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 pet feeder includes an assembly base and a feeder body. The assembly base includes a base body having an annular external rim provided with a plurality of pluggable fins. The feeder body includes an annular surrounding wall and a feeding trough defined inside the surrounding wall. The surrounding wall of the feeder body is provided with several sets of slots arranged in a circumferential direction about a central axis thereof and annularly spaced from each other in the circumferential direction. Each of the several sets of slots extends a distinct depth and has a plurality of slots matching the pluggable fins of the assembly base. As such, a height of the feeding trough of the feeder body can be conveniently adjusted when one of the several sets of slots with a specific depth is coupled with the pluggable fins of the assembly base.

The present invention relates to a workpiece carrier for transporting and/or storing components of a drug delivery device, comprising: an array of accommodating recesses extending in a first lateral plane (x, y) and being adapted to receive at least one component of the drug delivery device, at least one stack forming structure adapted to mate with a corresponding stack forming structure of another workpiece carrier for mutually aligning workpiece carriers when stacked on one another, wherein the center of the at least one stack forming structure is arranged laterally offset with respect to the center of the array of accommodating recesses in at least one lateral direction, and wherein the stack forming structure comprises a surrounding edge comprising at least in sections a corrugated or undulated structure.

The present invention relates to a workpiece carrier for transporting and/or storing components of a drug delivery device, comprising: an array of accommodating recesses extending in a first lateral plane (x, y) and being adapted to receive at least one component of the drug delivery device, at least one stack forming structure adapted to mate with a corresponding stack forming structure of another workpiece carrier for mutually aligning workpiece carriers when stacked on one another, wherein the center of the at least one stack forming structure is arranged laterally offset with respect to the center of the array of accommodating recesses in at least one lateral direction, and wherein the stack forming structure comprises a surrounding edge comprising at least in sections a corrugated or undulated structure.

A pet feeder includes an assembly base and a feeder body. The assembly base includes a base body having an annular external rim provided with a plurality of pluggable fins. The feeder body includes an annular surrounding wall and a feeding trough defined inside the surrounding wall. The surrounding wall of the feeder body is provided with several sets of slots arranged in a circumferential direction about a central axis thereof and annularly spaced from each other in the circumferential direction. Each of the several sets of slots extends a distinct depth and has a plurality of slots matching the pluggable fins of the assembly base. As such, a height of the feeding trough of the feeder body can be conveniently adjusted when one of the several sets of slots with a specific depth is coupled with the pluggable fins of the assembly base.

The present invention relates to a workpiece carrier for transporting and/or storing components of a drug delivery device, comprising: an array of accommodating recesses extending in a first lateral plane (x, y) and being adapted to receive at least one component of the drug delivery device, at least one stack forming structure adapted to mate with a corresponding stack forming structure of another workpiece carrier for mutually aligning workpiece carriers when stacked on one another, wherein the center of the at least one stack forming structure is arranged laterally offset with respect to the center of the array of accommodating recesses in at least one lateral direction, and wherein the stack forming structure comprises a surrounding edge comprising at least in sections a corrugated or undulated structure.

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.

The present invention relates to a workpiece carrier for transporting and/or storing components of a drug delivery device, comprising: an array of accommodating recesses extending in a first lateral plane (x, y) and being adapted to receive at least one component of the drug delivery device, at least one stack forming structure adapted to mate with a corresponding stack forming structure of another workpiece carrier for mutually aligning workpiece carriers when stacked on one another, wherein the center of the at least one stack forming structure is arranged laterally offset with respect to the center of the array of accommodating recesses in at least one lateral direction, and wherein the stack forming structure comprises a surrounding edge comprising at least in sections a corrugated or undulated structure.

A stackable crate has a horizontally oriented bottom panel and four vertically oriented side panels that are separately attached at their edges to form the stackable crate. Two straight-line channels, with widths at their tops being greater than at their bottoms, form ribs within the crate. When the channels and ribs of a first crate are aligned with the channels of a second stackable crate, the first crate nests within the second crate even when non-uniform material in the second crate is stored within it, without spilling the material or toppling the stack. When the channels and ribs of the first crate are not aligned with the channels of the second crate, the first crate does not nest within the second crate but instead rests on the tops of the ribs of the first crate.