Electrical and electronic devices are often installed in so-called racks. Racks of this type are shelf-like frames into which the devices are inserted and can be fastened, for example by means of screws. The racks commonly provide a pair of support rails for each device, upon which rails the device can be placed and can be inserted into the rack. The device can be subsequently fixed to the rack, for example screwed in. Within the scope of the invention, a device arrangement (1) is disclosed comprising at least one stacking device (4), wherein the stacking device (4) has adjustable feet (15) on the bottom surface (11) for supporting on a placement surface, comprising a base device (3), wherein the at least one stacking device (4) is arranged on the base device (3) so that these form a device tower (13), wherein the adjustment feet (15) of the stacking device (4) stand on the base device (3), wherein the device arrangement (1) comprises a 19-inch frame (2) and the stacking device (4) and the base device (3) are designed as insert devices with front plates (6) for the 19-inch frame (2), wherein the base device (3) and the at least one stacking device (4) are arranged as a device tower (13) in the 19-inch frame (2), and wherein the front plates (6) are connected to the 19-inch frame (2).

A furniture unit includes at least one substrate having an upper surface, a lower surface, a proximal peripheral surface, a distal peripheral surface, a first seam, and a second seam. The lower surface is opposite the upper surface. The proximal peripheral surface extends from the upper surface to the lower surface. The distal peripheral surface is opposite the proximal peripheral surface and extends from the upper surface to the lower surface. The second seam is spaced apart from the first seam. The first and second seams extend in a direction parallel to the proximal peripheral surface. The proximal peripheral surface engages the lower surface such that the substrate defines a first hollow support.

Methods and systems for modular fuel storage and transportation are provided. In an embodiment, a fuel storage system includes one or more fuel containers each supported by a fuel container support assembly. The fuel storage system may be mounted to a transportation device such as a vehicle or used in a stand-alone fashion. Each support assembly may include a plurality of detachable end support members such as end support members configured to support the end portions of the fuel container and side support members configured to support the body portion of the fuel container. Some of the end support members may include neck grooves such that when the end support members are coupled, the neck grooves form an enclosure around the neck portion of the fuel container. In an embodiment, the support assembly is configured to facilitate release of excess pressure in the fuel container.

A multipurpose piece of furniture (1) has four square panels (3, 4, 6, 7), i.e., a first vertical side panel (3), a second vertical side panel (4) arranged parallel thereto, a third panel (6) that is arranged between an edge (5) of the first side panel (3) and an edge of the second side panel (4) at a right angle to the first side panel (3) and the second side panel (4) and that connects the first side panel (3) and the second side panel (4) into a U-shaped piece of furniture. The fourth panel is an intermediate panel (7) that is inserted into the piece of furniture between the first side panel (3) and the second side panel (4) at a right angle thereto and at a right angle to the third panel (6). At their four corners, the first side panel (3) and the second side panel (4) have recesses (33, 34) and/or projections (19, 20, 21, 22), wherein these are recessed in the corner regions of the side panels (3, 4) extending substantially in the shape of an elongated rectangle into the edges (5) of the side panels, or extending out of the edges in the shape of an elongated rectangle and running at a right angle to each other in their directions of elongation at each of the corner regions.

A shelf or storage rack includes a top defined by a pair of elongated members held at a spaced distance from one another by a pair of frame end members and at least two frame cross-members respectively disposed at a spaced distance from each of the pair of frame end members to define a plurality of spaced slots. A left side support and a right side support are each defined by elongated support members held by at least one support cross-member, wherein at least a portion of the elongated support members has a first end including a protrusion and an adjoining support ledge and an opposed second end including a notch or groove. The protrusions and notches or grooves interact to provide a vertically stackable modular shelf or storage rack system.

The invention relates to E-commerce in consumable goods, such as groceries, which is intended to supplement or substitute for diversified retail stores, such as supermarkets. In a first aspect, the invention is of a portable rack, mountable on a load pallet and structured to comprise one or more compartments, arranged one above the other. Each compartment is configured to hold one or more containers, containing goods, and includes a plurality of carry rails, disposed to collectively carry the containers so as to enable lifting each container horizontally out of the compartment. In a second aspect, the invention is of an E-commerce system, for supplying fast moving consumer goods in response to customers' orders, that utilizes an integrated computer network and portable racks in order to increase operating efficiency, reduce required inventory size of each product, shorten supply time and enable offering of a larger variety of products.

A folding shelf may include a first shelving unit having first side frames, one or more shelving boards, a first retractable control unit; and a second shelving unit having second side frames, one or more second shelving boards, a second retractable control unit. The first/second retractable control unit may include a first/second main body; a first/second pole partially received in the first main body; and a first/second locking member. When the folding shelf is folded, the user can first twist a first/second locking element to untightened first/second main body and first/second pole. The user can then lift the side frames in the center portion as to collapse the shelf. More specifically, the sliding movement of the first pole and the second pole can bring two side frames toward the center portion of the folding shelf to significantly minimize the size thereof.

A furniture unit includes at least one substrate having an upper surface, a lower surface, a proximal peripheral surface, a distal peripheral surface, a first seam, and a second seam. The lower surface is opposite the upper surface. The proximal peripheral surface extends from the upper surface to the lower surface. The distal peripheral surface is opposite the proximal peripheral surface and extends from the upper surface to the lower surface. The second seam is spaced apart from the first seam. The first and second seams extend in a direction parallel to the proximal peripheral surface. The proximal peripheral surface engages the lower surface such that the substrate defines a first hollow support.

A multi-tiered expandable filing assembly provides at least three modular trays arranged in stacked tiers and supported from two side by a pair of lateral frames. The modular trays receive, store, sort, and organize files, documents, and mail. The modular trays comprise a panel, a peripheral region, and at least one protrusion extending from the periphery. The protrusion extends from the sides of the panel and are configured to couple with the concave humps that form in the support bars of the lateral frames. The modular trays are arranged into three tiers and expanded to additional tiers of trays through constructive arrangement with the lateral frames. The lateral frames comprise a pair of legs, a top bar forming a top convex hump, and a bottom bar forming a bottom convex hump. The top and bottom convex humps from multiple assemblies can be stacked to further expand the assembly.

A foldable display case includes: a case main body; first connection portions; second connection portions; first side-wall portions, each configured to be turnable between a first position where the first side-wall portion stands up from the case main body and a second position where the first side-wall portion falls down on the case main body, and each including first engagement portions; second side-wall portions, each configured to be turnable between a third position where the second side-wall portion stands up from the case main body and a fourth position where the second side-wall portion falls down on the case main body, and each including second engagement portions; and joint portions each including third engagement portions engageable with and disengageable from the first engagement portions of the turning first side-wall portion, and fourth engagement portions engageable with and disengageable from the second engagement portions of the turning second side-wall portion.