Abstract: Portable structures are disclosed that include a housing having top, bottom, first side, and second side walls; a first mating element having a cleat and positioned on a first region between the bottom wall and the first sidewall, the cleat extending laterally outward from the first region; and a second mating element having an actuator and a cleat and positioned in a second region between the bottom wall and the second sidewall, the second mating element pivotally movable about a pivot axis extending longitudinally along the second region, and the second mating element biased to a first position in which the actuator is positioned against the second region and the cleat extends laterally outward from the second region, and movable to a second position in which the actuator is spaced laterally outward from the second region and the cleat is retracted laterally inward relative to the second region.

Abstract: A power outlet box is disclosed. The power outlet box includes a housing having a drum disposed therein, the drum being rotatable relative to the housing. The power outlet box includes a power cord windable about the drum, the power cord being extendable or retractable through an opening in the housing based on a direction of rotation of the drum. The power outlet box includes at least one power outlet externally fixed on the housing and electrically coupled to the power cord. The at least one power outlet remains electrically connected to the drum as the drum rotates relative to the housing.

Abstract: A stackable storage system is disclosed. The system includes a base storage container disposed on a wheeled cart, and one or more additional storage containers removably secured on top of the base container. The system further includes a power outlet box which is interchangeably securable in the system with the other storage containers. The power outlet box includes an extendable AC power cord which may be plugged into a wall outlet, and one or more electrical output plugs, include AC outlets and USB outlets which are powered by the AC power cord. The power outlet box and other containers are securable to each other by a spring loaded latch system. The power outlet box is also usable separate with a storage container having an overhead carry handle allowing both the container and power box to be transportable together.

Abstract: A support for supporting a distance measurement device on a tool, includes a main body and an adjustment part. The main body includes an attachment part for removably attaching the support to a tool. The adjustment part is attached to the main body and includes a mount for removably mounting a distance measurement device thereto. The mount is movable with respect to the main body to adjust a position of the distance measurement device with respect to the main body. The distance measurement device may comprise a distance measuring roller configured for measuring distances along surfaces by rolling contact therewith. The distance measurement device may be removably attachable to a tool by means of the support, for measuring distances on a workpiece worked on by the tool.

Abstract: A stackable storage system is disclosed. The system includes a base storage container disposed on a wheeled cart, and one or more additional storage containers removably secured on top of the base container. The system further includes a power outlet box which is interchangeably securable in the system with the other storage containers. The power outlet box includes an extendable AC power cord which may be plugged into a wall outlet, and one or more electrical output plugs, include AC outlets and USB outlets which are powered by the AC power cord. The power outlet box and other containers are securable to each other by a spring loaded latch system. The power outlet box is also usable separate with a storage container having an overhead carry handle allowing both the container and power box to be transportable together.