A stackable material handling container comprising a bottom support wall. Opposed pairs of leg members are provided on opposite sides of the bottom support wall, each of the leg members having a support surface spaced downwardly of the bottom support wall and an intermediate bearing surface spaced between the bottom support wall and the support surface. A rigid upstanding wall is secured to a marginal edge of the bottom support wall and extending thereabove across each pair of leg members. Guide means is provided on a top edge of the upstanding wall to position the bearing surface of each of the leg members of a further container in a respective support edge section of the top edge whereby containers may be stacked in alignment one on top of the other.

A collapsible material handling container comprising a deck bed having a plurality of support legs thereon, and a deck mat fixed to the upper surface of the deck bed. A first side wall is hinged along the lower edge thereof to the deck mat, and a pair of opposed end walls are hinged along the front edges thereof to the opposite side edges of the first side wall. A second side wall is hinged along the lower edge thereof to the deck mat. In the erected condition of the container, the second side wall is connectible to the end walls by releasable lock mechanisms. The upper portion of the first side wall may comprise a gate having a releasable lock mechanism which coacts with the end walls for connecting the gate to the walls, in the erected condition of the container. The hinges between the first side wall and the end walls extend vertically along only the lower portion of the first side wall. When the container is to be collapsed, the locking mechanisms associated with the second side wall are released, and the opposed end walls are individually and sequentially folded inwardly to overlap the first side wall. The second side wall is then folded inwardly to directly overlie the deck mat and then the first side wall, with the end walls folded thereon, is folded inwardly to overlap the second side wall.

A collapsible metal wire basket comprising a hollow base with upper edges on which side walls are articulated. Upper supports are provided on the upper external post of at least two opposed articulated side walls and lower supports are provided on the exterior of the base. Feet are provided on the base for resting on supports of an identical basket. In use, the articulated walls may be folded into the hollow base in which case the feet rest on the lower supports of the identical basket, or the articulated walls may be erect in which case the feet rest on the upper supports of the identical basket. An openable door can be provided in the side walls.

The invention is an interlocking structure. It can be shipped in a low volume disassembled state. It is easily interlocked together, without tools or special skills, by the eventual user. The interlocked structure has uncommon rigidity and strength. Containers like dresser drawers, laundry baskets or waste paper baskets, shelters like dog houses and human shelters, or furniture like a portable fireplace can be interlocked together using a plurality of interconnecting rods and hooks. The abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

A wire bag stand 10 or 30 is made for resiliently gripping and holding the open mouth of a plastic bag. Stand 10 or 30 includes a base 11 and generally U-shaped sides 12 and 13 mounted on base 11 to splay upright above the base for supporting the bag. Base 11 provides stops against inward movement of the upright sides. Top spans 32 of the sides are bent outward to grip and engage a plastic bag, and the sides resiliently flex so that their tops can be sprung toward each other by a bag stretched and held between them.