A collapsible structure connection system and method including an apparatus having a pair of mated ferrules or rod segments and a spring-loaded push-button locking mechanism, the spring-loaded push-button locking mechanism having a spring-loaded push-button seated on a dowel of a male ferrule or mail rod segment, and a cavity aperture traversing a dowel cavity of a female ferrule or female rod segment. Each ferrule couples to a rod segment of the structure, the ferrules connecting the rod segments when mated, but allowing the rod segments to disengage into a collapsed structure. An exemplary embodiment of the apparatus and collapsible structure connection system includes a pair of mated ferrules or rod segments, one pivoting pin and at least one slider arm. The slider arm rotates around the pivoting pins, allowing the ferrules or rod segments to rotate into various positions when selectively connecting and collapsing rod segments.

A portable lightning protection system including a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; and a base assembly attachable to the base mast section via a hinge assembly, wherein the hinge assembly is configured to allow the base mast section to hinge from a substantially vertical position to a substantially horizontal position relative to the base assembly. A catenary lightning protection system including at least two lightning protection systems, each lightning protection system may include a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; a base assembly attachable to the base mast section; and may further include a catenary wire connected between the at least two lightning protection systems.

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.

The system of the present invention is a tilt over mast that is easy to construct from the ground and permits azimuthal adjustments from the ground with the mast elevated to working heights. The system used for calibrating a directional antenna and includes two or more mast sections, namely a base member, a mid member, and a top member. The mid member may be pivotally coupled about the base member at a number of positions. The top member is coupled to an opposing end of the mid member and supports the desired equipment. A method of constructing and operating the system is described.

A lightning isolation support arm assembly for mounting an accessory unit, such as an antenna, sensor, camera, or any other suitable accessory/device, to a mast assembly of a lightning protection system. The support arm assembly may include a mast base adapter and one or more support arms attached to the mast base adapter. A portable lightning protection system including a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; a base assembly attachable to the base mast section via a hinge assembly, wherein the hinge assembly may be configured to allow the base mast section to hinge relative to the base assembly; and a support arm assembly attached to the mast assembly.

A portable lightning protection system including a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; and a base assembly attachable to the base mast section via a hinge assembly, wherein the hinge assembly is configured to allow the base mast section to hinge from a substantially vertical position to a substantially horizontal position relative to the base assembly. A catenary lightning protection system including at least two lightning protection systems, each lightning protection system may include a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; a base assembly attachable to the base mast section; and may further include a catenary wire connected between the at least two lightning protection systems.

A utility pole is resistant to breakage by providing a connection between an upper and a lower portion. In many embodiments, the upper portion with an arm supporting a utility line is able to deflect relative to a lower portion at the connection and then either be replaced or restored to the upright configuration.

Disclosed is a pivotable signpost support device. The device includes a signpost support that is vertically aligned with a ground post support, wherein the signpost support is disposed above the ground post support that is affixed to a ground post. The signpost support and the ground post support are secured between first vertical support and a second vertical support. The signpost support is pivotally secured to the first and second vertical supports by means of a pivot bolt having a die spring at an end thereof, so that it can pivot forward and backward relative to the first and second vertical supports. The pivot bolt can tighten the die spring so as to keep the signpost support in an upright position but allowing the signpost support to fall into a collapsed position.

The present invention discloses a high-capacity drilling rig system that includes novel design features that alone and more particularly in combination facilitate a fast rig-up and rig-down with a single set of raising cylinders and maintains transportability features. In particular, a transport trailer is disclosed having a first support member and a drive member which align the lower mast portion with inclined rig floor ramps and translate the lower mast legs up the ramps and into alignment for connection. A pair of wing brackets is pivotally deployed from within the lower mast width for connection to the raising cylinder for raising the mast from a horizontal position into a vertical position. A cantilever is pivotally deployed from beneath the rig floor to a position above it for connection to the raising cylinder for raising the substructure from a collapsed position into the erect position.

The device disclosed herein is for a folding mast device for use on watercraft. In the preferred embodiment, the mast is used on a bridge erection boat; however, additional watercraft may also incorporate this device. The mast includes clamps and other components in order to allow the mast to be assembled and disassembled without tools, which also makes the assembly and disassembly quick. The mast is also quickly removable and replaceable. The mast also can incorporate safety features, such as lighting and other devices needed for safe navigation, and is capable of adjusting to accommodate fabrication differences.