A portable restroom system provides multiple restroom units and an arrangement which allows the size of the system to be reduced for easy storage and transportation. The system includes a first restroom array, a second restroom array, a water-supply manifold, and a waste-removal manifold. The first restroom array and the second restroom array each preferably provide at least four restroom units. The first restroom array and the second restroom array are structurally arranged to allow retractability of the walls, the ceilings, and the floors of the restroom units in order to allow the system to be easily stored and transported when not in use. The water-supply manifold provides clean water to the associated restroom units of the first restroom array and the second restroom array. The waste-removal manifold removes any waste produced after use of the associated restroom units of the first restroom array and the second restroom array.

A collapsible shelter comprising a rigid-framed box section and a plurality of rigid panel sections, wherein each panel has a complimentary shape and dimension to fit within a neighbouring section such that the structure can be collapsed to form a storage case when all the panel sections fit within the box section.

A support structure comprising a pultruded outer beam (12), a pultruded inner beam (14), a plurality of wear tabs (16) affixed to the inner beam, and a gear track (18) affixed to the inner beam. The outer beam is substantially hollow and adapted to receive the inner beam and the inner beam is shaped so that a portion of the inner beam extends nearly the entire height of the outer beam and a portion of the inner beam extends nearly the entire width of the outer beam, the plurality of wear tabs are located at one or more corners of the inner beam, and the gear track contacts a gear for facilitating movement of the inner beam.

A mobile tower for transportation to and rapid deployment at remote sites where the mobile tower can be engaged with the ground, the mobile tower including an extendable and retractable tower secured to a mobile support structure including a frame having a plurality of rapidly deployable outriggers, wherein the tower includes three series of pivotally interconnected tower sections or segments, sections or segments of which engage with segments of each of the other series when the tower is assembled; the mobile tower including a plurality of guy wires secured between the extendable and retractable tower and the respective outriggers to stabilize the tower after the tower is assembled. The guy wires are preferably secured to the extendable and retractable tower at first and second connecting positions that are displaced from one another about an outer perimeter. Methods of deploying the mobile tower are also disclosed.

An extendable and retractable column which is formed from at least three linked sections or chains. The linked sections include a plurality of individual segments linked end to end. As the linked segments are extended, each of the individual segments of the linked chains engage individual segments of adjacent linked sections to form a column. As the linked sections are retracted, each of the individual segments of the linked sections disengage from the individual segment of the adjacent linked sections and the individual linked sections may be rolled up into a multi-sided form for compact storage.

Aspects of the present disclosure are directed to a telescopic mast. In some embodiment, the telescopic mast includes at least two telescope members with parallel walls. One of the at least two telescopic members including at least two adjoining telescopic sections, with one of the at least two adjoining telescope sections being thinner than the others of the at least two adjoining telescope sections, so that a telescope section can be passed respectively into and out of a telescope section positioned round it in a telescope member. This telescope section positioned round it can be passed into and out of a further telescope section in a further telescope member. The telescopic mast further including elastic elements/actuators fitted between the adjacent telescopic sections, the elastic elements/actuators equalize and bear the dead weight and the useful load on the telescopic mast.

A three dimensional grid system for lighting, data, and power equipment that can be used to position both the grid system as well as any equipment mounted upon it above the user and away from or otherwise off the surface of their work area for optimum productivity. The grid system may include both manual and motorized lifters, so that the grid system may be raised or lowered for maintenance and configuration changes. Clamps hold equipment and move along the tubing for optimum equipment placement, and motorized equipment lifters raise and lower devices to/from the work area. For the motorized lifters, software is included that communicates with the device across internet connections and gives users the ability to reconfigure their work area remotely, without touching the device.

A mobile tower for transportation to and rapid deployment at remote sites where the mobile tower can be engaged with the ground, the mobile tower including an extendable and retractable tower secured to a mobile support structure including a frame having a plurality of rapidly deployable outriggers, wherein the tower includes three series of pivotally interconnected tower sections or segments, sections or segments of which engage with segments of each of the other series when the tower is assembled; the mobile tower including a rigging apparatus that generally encircles the tower and a plurality of guy wires secured between the tower and the respective outriggers to stabilize the tower after the tower is assembled. The guy wires are preferably secured to the rigging apparatus at first and second connecting positions that are displaced from one another about an outer perimeter of the rigging apparatus. Methods of deploying the mobile tower are also disclosed.

A portable restroom system provides multiple restroom units and an arrangement which allows the size of the system to be reduced for easy storage and transportation. The system includes a first restroom array, a second restroom array, a water-supply manifold, and a waste-removal manifold. The first restroom array and the second restroom array each preferably provide at least four restroom units. The first restroom array and the second restroom array are structurally arranged to allow retractability of the walls, the ceilings, and the floors of the restroom units in order to allow the system to be easily stored and transported when not in use. The water-supply manifold provides clean water to the associated restroom units of the first restroom array and the second restroom array. The waste-removal manifold removes any waste produced after use of the associated restroom units of the first restroom array and the second restroom array.

This invention discloses a lower system in which a telescoping tower with a plurality of tower structures is contained within a rigid transportation container in a substantially horizontal position for transportation, may be extended to a height much greater than its contracted length. The tower may be transported horizontal, repositioned to a vertical position and then the individual tower structures extended and secured via spring pins relative to the adjacent tower structure, the erection of the tower sections may be with external equipment such as a boom truck, or utilizing an internal hydraulic cylinder.