This invention discloses a tower 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.

A Mobile Autonomous Solar-Wind Electrical Station (MASWES) comprises an offshore container (2), which equipped with a reinforced case (18); a reinforced grillage (19) provided by at least two beams laid along, and plurality beams laid across the container (2); at least two reinforced internal columns (42) arranged in opposite corners of the container (2) and between the grillage (19) and the middle part of the reinforced case (18); a plurality of light reflecting mats (21); a plurality of movable screw-piles (22), which in the transport position are stored in the plurality of cylindrical channels (38); at least two monolithic towers or telescopic masts (52) of powerful horizontal-axis wind turbines (23) providing at least 10 kW power each with blades and wind vanes taken off in the transport position. The reinforced internal columns (42) are the bases for the monolithic towers or the telescopic masts (52) and equipped with a hydraulic mechanism or an electric actuator (54) and an erection tool for installation of mentioned monolithic towers or telescopic masts (52). The container (2) comprises gondolas, which in the transport position are arranged horizontally in opposite ends of the container (2); a plurality of photovoltaic double-sided panels (24); a plurality of multifold frameworks for photovoltaic panel arrays (25) with at least 30 kW power total and at least one charging point (28) stored inside the container and at least one rechargeable battery (31).

A mobile tower system includes a tower cassette sized to be accommodated in a bed of a pickup truck. The tower cassette includes a container, a tower vertically fixed to a back portion of the container, and a mounting member fixed to a top of the tower. The mounting member has a free end for mounting a piece of equipment thereto, and the mounting member is moveable between a stowed position and a use position. When in the stowed position, the free end of the mounting member is disposed inside of the container for securing the piece of equipment mounted thereto in the container when the tower is not in use. When in the use position, the free end of the mounting member is disposed outside of the container for operating the piece of equipment when the tower is in use.

A fall protection apparatus includes a heavy support base with a pivotal mast having a top member for rotation around the axis of the mast carrying a series of booms pivotal about respective vertical axes, each having an end coupling member for receiving a fall restraint harness. Each boom is formed by a tube which fractures on a fall and an elongate stainless steel strap inside the tube which bends without fracturing. The mast includes a series of telescopic rectangular mast sections with a winch driven cable and pulley arrangement for extending the first section which acts to pull the second inner section to the extended position as the first inner section moves out of the outer section. Each section includes first and second pulleys mounted at the same face of the section with the cable located between the face of the section and the face of the next section.

Expandable light towers suitable for mounting to a mobile unit, and methods for their use. Such an expandable light tower includes a telescoping assembly comprising first and second telescoping units. The second telescoping unit is telescopically received in the first telescoping unit to configure the expandable light tower to have retracted and extended configurations. The light tower further includes a light-mounting assembly mounted to the second telescoping unit and a mounting assembly coupled to the first telescoping unit and adapted to mount the telescoping assembly to a hitch of a mobile unit. The mounting assembly enables the telescoping assembly to pivot about a transverse axis.

A lighting tower system comprises a tower having adjacent telescoping sections, the telescoping sections sliding relative to one another between retracted and extended positions, and the telescoping sections comprising at least an upper section and a lower section. A light assembly is rotatably mounted to the upper section such that the light assembly may be rotated from a first position parallel to the tower to a second position extending away from the tower. A storage container is positioned in the bed of a vehicle, and the tower is fitted in the storage container and connected to the storage container by a folding mechanism, the folding mechanism permitting the tower to move between a folded position inside the storage container and an upright position extending out of the storage container when the tower is retracted and the light assembly is in the first position.

An autonomous mobile device (AMD) includes a telescoping mast with sensors on top that are connected to a cable running through the mast. An inner section of the mast includes a bobbin that secures cables. The bobbin has a shaft and features that guide cables to helically wind around the shaft. The bobbin reduces stress on the cable as the mast moves. The mast is lifted by a rack that includes a portion with teeth and a portion without. The portion with teeth is driven by a motor. The portion without teeth connects the rack to a spool. The toothless section reduces stress on the toothed portion of the rack as it spools or unspools. The AMD includes a hinge to tilt a display. To securely position the hinge on a shaft, the shaft is spun after assembly so that a push nut cuts a retention groove in the shaft.

A method for manufacturing a tower structure of a wind turbine includes printing, via an additive printing device, a plurality of concentric sections of the tower structure of the wind turbine. The concentric sections may be printed simultaneously from concrete, may include tensioning cables or other structural supports, and may define other support flanges or overhangs. After curing, the method may include raising an inner section of the plurality of concentric sections to a top of an adjacent outer section and joining the two sections. This process may be repeated to telescope the concentric sections and raise the tower structure.

A telescopic mast includes: a tubular main body in which a power supply signal wire is embedded; one or more tubular sections coupled to be withdrawn from or insertable into the tubular main body; one or more coupling members which are provided at the top ends of the tubular main body and the tubular sections to fix or release the coupling between the tubular main body and the tubular sections during a withdrawn or insertion operation of the tubular sections; and a power supply coupling member which is connected to the power supply signal wire embedded in the tubular main body to supply power thereto.

A telescopic pipe includes a base pipe having a base inner pipe rotated by external force, and a base outer pipe arranged to receive the base inner pipe; a connecting pipe having a connecting inner pipe coupled to the base inner pipe to be extendable to transfer rotational force, and a connecting outer pipe screw-coupled to the inner circumferential surface of the base outer pipe to be extendable; and a finishing pipe including a finishing inner pipe coupled to the connecting inner pipe to be extendable and to be rotated, and a finishing outer pipe that is interlocked by means of rotation of the finishing inner pipe and is screw-coupled to the inner circumferential surface of the connecting outer-pipe to be extendable, wherein the connecting outer pipe is interlocked by the rotational force of the extended finishing outer pipe and thus is extended and retracted along the base outer pipe.