Abstract: The invention provides cleats or bars for interlocking produce lug boxes at the top tier of multiple tier columns of such boxes arranged on a pallet in a unitized stack. The lug boxes have rectangular plastic frames at their ends, surmounted by spacers, and the invention provides cleats or bars which clamp to these spacers at the top of the stack. The end frames of the containers engage end-frame to end-frame in the stack, and are provided with interlocking elements which prevent lateral shifting of individual containers. In combination with the use of these interlocking elements, the clamping bars at the top provide an especially well integrated stack of containers. In addition, certain binding tapes are used, and these interengage with guides and recesses in the end frames and locking bars to unitize and stabilize the stack. The clamping bars also provide flat platforms on which can be mounted a second pallet supporting a second stack of containers.

Abstract: Each retainer consists of a thin walled plastic molding generally of elongated rectangular shape having an elongated open top and partially open front and including a combination vertical plug and socket at diagonally positioned opposite rear corners for simple friction assembly in superposed stacked relation, with each stack capable of end junctions for forming simple angular, triangular, rectangular and other polygonal formations of stacks for retaining pluralities of relatively small articles, such as spectacles, notions or other packaged goods.

Abstract: An improved disposable container cover for use with recessed-bottom frusto-conical containers includes annular projection means on its surface which will fit into the recessed bottom of an adjacent like container in telescopic forceful frictional engagement. The projection means is resilient and of diameter greater than the inner diameter of the container recessed bottom and deforms upon pressure of interengagement therewith to fit therein. Upon release of this pressure the projection means seeks to expand to its original diameter and siezes the recessed bottom to permit stable stacking of a plurality of containers. In another embodiment, an annular projection secures the exterior of a flat-bottomed container. A stack of containers may be secured by a binding strap which fits into recesses on the container cover periphery to maintain alignment and permit spill-proof carrying thereof.

Abstract: A container comprises a horizontally disposed base having upstanding and contiguous side walls disposed thereon to define an open top compartment. A combined reinforcing and support member is attached to an upper end of each corner of the container, defined at the juncture of each adjacent pair of side walls, and has a horizontally disposed platform bridged between such pair of side walls.