The present invention includes a portable, snap-together cooler and methods for providing a portable, snap-together cooler. The cooler may include six panels, wherein each of the panels includes connector elements that snap onto other connector elements to assemble the cooler. Each of the six panels may include attachment elements that may be used to secure each of the panels onto at least one other panel when the panels are stacked.

Collapsible reusable carrying cases are provided in sizes varying from small food containers to large push cart bins on casters. The cases are assembled or disassembled from a joined flat space-saving configuration to a functioning case and vice-versa. All parts that make up a carrying case do not separate from the carrying case and no parts can be removed. The cases are formed from rigid plastic panels, and are assembled or disassembled without tools. The sides of the cases are erected progressively by hand by interlocking elements at the corners. The panels also disassemble progressively by being manually pulled apart. When folded into a flat storage or shipping configuration, the panels stay together, resisting unfolding by virtue of snaps which are either molded into the panels or bonded to them. The carrying cases are resistant to water, dirt, bacteria, molds, allergens, and inclement weather.

A portable collapsible container for transporting fluids. The container is formed of flexible walls that can be folded to collapse the container. A specialized rim is connected to the container walls through a transition collar which enables a hard rim to be joined to relatively soft and pliable walls. A metallic ring is embedded in an upper aspect of the container to maintain the container in cylindrical form and prevent denting of the rim which could cause separation of the lid from the rim.

A reconfigurable structure includes one or more linkage assemblies that are each formed by one or more linkage chains of a plurality of linkages. Neighboring pairs of linkages of each linkage chain are rotatably coupled to each other via a first pin-in-slot joint and a second pin-in-slot joint. The reconfigurable structure includes a material layer mounted to the plurality of linkages of each linkage assembly. The material layer maintains a constant length across a range of motion of each linkage assembly, thereby reducing or eliminating in-plane strain of the material layer across the range of motion. In an example, the reconfigurable structure can provide a first configuration corresponding to an annular tube shape for a fluid vessel, conduit, or other suitable structure, and a second configuration corresponding to a flattened shape. The flattened shape of the second configuration can be used for storage and transport of the reconfigurable structure.

A reconfigurable structure includes one or more linkage assemblies that are each formed by one or more linkage chains of a plurality of linkages. Neighboring pairs of linkages of each linkage chain are rotatably coupled to each other via a first pin-in-slot joint and a second pin-in-slot joint. The reconfigurable structure includes a material layer mounted to the plurality of linkages of each linkage assembly. The material layer maintains a constant length across a range of motion of each linkage assembly, thereby reducing or eliminating in-plane strain of the material layer across the range of motion. In an example, the reconfigurable structure can provide a first configuration corresponding to an annular tube shape for a fluid vessel, conduit, or other suitable structure, and a second configuration corresponding to a flattened shape. The flattened shape of the second configuration can be used for storage and transport of the reconfigurable structure.

A multi-piece plastic tank is provided and includes a tank top section, wherein the tank top section defines a tank top opening surrounded by a top flange that extends along the length of the top flange, a tank bottom section having, wherein the tank bottom section defines a tank bottom opening surrounded by a bottom flange that extends along the length of the bottom flange, wherein the top flange and bottom flange are configured to be connected to form the multi-piece plastic tank.

A container system including a first container having a first wall defining a first opening therethrough; a second container having a second wall defining a second opening therethrough; and a connecting member securing the second container to the first container. The second wall is disposed adjacent to the first wall, and the second opening is aligned with the first opening. The connecting member includes a narrow portion at least partially received within each of the first opening and the second opening; a first wide portion received within the first container, extending across the first opening, and engaging the first wall on opposing sides of the first opening; and a second wide portion disposed adjacent to the second wall, and extending across the second opening, such that the connecting member secures the second container to the first container.

Reusable, stackable containers for produce and the like, along with related methods. In some implementations, a method for folding a sheet into a container may comprise folding a first rollover panel against a first panel, wherein the first panel is configured to define a first sidewall of the container. The first rollover panel may further be configured to define a reinforced upper portion of the first sidewall of the container. A second rollover panel may be folded against a second panel, wherein the second panel is configured to define a second sidewall of the container opposite from the first sidewall. The second rollover panel may be configured to define a reinforced upper portion of the second sidewall of the container.

A portable collapsible container for transporting fluids. The container is formed of flexible walls that can be folded to collapse the container. A specialized rim is connected to the container walls through a transition collar which enables a hard rim to be joined to relatively soft and pliable walls. A metallic ring is embedded in an upper aspect of the container to maintain the container in cylindrical form and prevent denting of the rim which could cause separation of the lid from the rim.

A box cover, configured for sealing a box body with a first opening, an inner surface of the box cover is provided with a protruding component, the protruding component is abutted against and connected to a connecting component of the box body by means of interface fusion, to form an integrated connection. The box cover is integrated with the connecting component of the protruding component and the box body to form an integrated joint, which is conducive to improving the stability and reliability of the connection between the box cover and the box body, thereby reducing the risk of leakage or detachment of internal components of the box body.