A plastic article useful as a riser assembly for a septic tank or as part of another structure is comprised of a multiplicity of identical shape conical wall plastic risers. The risers are attached to each other at joints by tabs which engage rim segments; each end of the riser has alternating tabs and rim segments. A riser assembly wall undulates in the lengthwise direction. The risers nest within each other for shipment or storage.

The object of the invention is an air cargo container (1) comprising a rectangular, planar bottom side (2) for accommodating a transported product (8), a rectangular, planar top side (6), at least four connecting profiles (10) and an least triangular, planar intermediate element (12) made of a flexible material, wherein the connecting profiles (10) each connect one corner (11) of the bottom side (2) and one corner (11) of the top side (6) with one another in order to form sides (3) of the air cargo container (1), a guide device (19) is disposed on each of at least three connecting profiles (10) and/or a guide device (19) is disposed on each of two opposing edges (21) of the bottom side (2) and on at least one edge (21) of the top side (6) or on each of two opposing edges (21) of the top side (6) and on at least one edge (21) of the bottom side (2) such that the guide devices (19) define a plane, and the intermediate element (12) comprises a snap-fitting means (20) at each corner (14), wherein said snap-fitting means has a variable length and is designed to snap into the guide device (19).

A plastic article useful as a riser assembly for a septic tank or as part of another structure is comprised of a multiplicity of identical shape conical wall plastic risers. The risers are attached to each other at joints by tabs which engage rim segments; each end of the riser has alternating tabs and rim segments. A riser assembly wall undulates in the lengthwise direction. The risers nest within each other for shipment or storage.

A plastic article useful as a riser assembly for a septic tank or as part of another structure is comprised of a multiplicity of identical shape conical wall plastic risers. The risers are attached to each other at joints by tabs which engage rim segments; each end of the riser has alternating tabs and rim segments. A riser assembly wall undulates in the lengthwise direction. The risers nest within each other for shipment or storage.

A modular container storage system includes multiple container units configured to be assembled to one another in an indefinite expanded state for enabling sheltered access to the stored items through a corridor enclosure, and in a compacted state for convenient transport and/or reduced storage space.

A modular container storage system includes multiple container units configured to be assembled to one another in an indefinite expanded state for enabling sheltered access to the stored items through a corridor enclosure, and in a compacted state for convenient transport and/or reduced storage space.

A container that is formed from a plurality of panels that are joined to each other by a plurality of edge brackets. Each of the edge brackets includes a first channel member and a second channel member that are joined to each other. The first channel member includes a first receiving channel and the second channel member includes a second receiving channel. The first and second receiving channels are arranged to be perpendicular to each other and are each sided to receive a side edge of one of the panels that form the container. The series of edge brackets can be used to securely assembly the container from the plurality of panels after the disassembled container has been shipped.

A collapsible container including a roof; a base; a collapsible wall between the roof and the base; a linkage connecting the roof to the collapsible wall to collapse the collapsible wall and raise the collapsible wall to an erect position; and a foldable wall, wherein the roof includes a constant-force device to act on the foldable wall.