The invention concerns a trailer unit for use with a towing vehicle for transporting tracked constructional machines, such as excavators, said trailer unit including: a pair of wheeled carriages, respectively a left and a right wheeled carriages, adapted to be detachably connected to a pair of track frames, respectively a left and a right track frames, of a tracked constructional machine through first connecting means; a drawbar having a first end adapted to be detachably connected to a rear frame of the towing vehicle and a second end adapted to be detachably connected to a bottom frame of the tracked constructional machine through second connecting means.

An apparatus for transporting a helicopter by ground transportation is hereby presented, the apparatus comprising a mechanism pulling on the rotor assembly to alleviate at least a portion of a mass of the blades to prevent mechanical compression to be applied on a rotor of the helicopter when the helicopter is transported with the apparatus. A trailer thereof, an operation command center, a helicopter crate and a method of use thereof are also presented therein.

An axle assembly having a unitary trunnion bracket, an axle, and a support bracket. The unitary trunnion bracket may include an axle interface portion and a bracket interface portion. The bracket interface portion may extend from the axle interface portion. The axle may engage the axle interface portion. The support bracket may engage the bracket interface portion.

In accordance with presently disclosed embodiments, systems and methods for handling bulk material in a manner that reduces dust, noise, and emissions are provided. The presently disclosed techniques use portable containers to transfer bulk material from a transportation unit to a blender inlet. The containers may be carried to the location on the transportation unit, where a hoisting mechanism is used to remove the container from the transportation unit and place it in a desired location. When bulk material is needed at the blender inlet, the hoisting mechanism may position the container of bulk material onto an elevated support structure. Once on the support structure, the container may be opened to release bulk material to a gravity feed outlet, which routes the bulk material from the container directly into the blender inlet. The disclosed containerized bulk material transfer system and method allows for reduced dust, noise, and emissions on location.

An axle assembly having a unitary trunnion bracket, an axle, and a support bracket. The unitary trunnion bracket may include an axle interface portion and a bracket interface portion. The bracket interface portion may extend from the axle interface portion. The axle may engage the axle interface portion. The support bracket may engage the bracket interface portion.

A modular trailer includes: a front module including a frame, a plurality of axles connected to the frame, and a plurality of wheels connected to each axle; a rear module including a frame, a plurality of axles connected to the frame, and a plurality of wheels connected to each axle; a center module including a frame having a front end and a rear end, the front end removably pinned to the front module and the rear end removably pinned to the rear module, the center module further including a bearing rotatable relative to the frame; and a steering device operatively associated with the bearing and co-acting with at least one of the axles such that rotation of the bearing effects turning of the at least one axle. A towing system and a module of a modular trailer are also disclosed.

A height adjustable transporting trailer includes a main frame, a plurality of left wheel assemblies, a plurality of right wheel assemblies, and a hydraulic system. The plurality of left wheel assemblies and the plurality of right wheel assemblies are pivotally connected to a rear section of the main frame through a fixed end of a control arm. A free end of the control arm retracts and extends the plurality of left wheel assemblies and the plurality of right wheel assemblies with a hydraulic cylinder of each left wheel assembly and each right wheel assembly that is operated through the hydraulic system. Resultantly, the height adjustable transporting trailer can efficiently load/unload a manufactured house as the main frame can be lowered and positioned underneath the foundation of the manufactured house.

A system for and method of utilizing and generating electrical power is provided. The trailer assist system is configured to engage with a trailer of a tractor trailer or other vehicle, thereby converting the vehicle into a hybrid vehicle and/or a power generation vehicle as the vehicle travels along a road. The trailer assist system includes one or more drive wheel for selective engagement with the road, an electrical motor being selectively configured to provide power to the drive wheel and a regenerative braking system being selectively configured to generate power from the drive wheel. Retractable positioning wheels are selectively deployed to assist in moving the trailer assist into and out of position relative to a trailer, thereby facilitating exchanging one trailer assist system for another trailer assist system. A control system utilizes information from one or more sensor to optimize performance of the trailer assist system.

A trailer lift that that rises to high levels that may tilt for loading and unloading. The trailer lift includes a lift-and-tilt mechanism, a trailer base, and a trailer platform. The lift-and-tilt mechanism includes a lower-strut link, an upper-strut link, a support member, a lower lift cylinder, and an upper cylinder. The lower-strut link and the upper-strut link are pivotably and terminally attached to each other. The support member is positioned offset to the lower-strut link and is pivotably attached to the upper-strut link to guide the upper-strut link. The trailer platform is terminally and pivotably connected to the upper-strut link. Similarly, the trailer base is pivotably and terminally connected to the lower-strut link and the support member. The upper lift cylinder is pivotably mounted in between the upper-strut link and the trailer platform. The lower lift cylinder is pivotably mounted between the upper-strut link and the lower-strut link.

A high density mobile power unit may include an elongated unibody frame having a frame cavity, a front end, a rear end, an elongated roof panel, a front panel, a rear panel, an elongated floor assembly having an upper side and a lower side, an elongated first side panel, and an elongated second side panel. An enclosure may be formed by the elongated roof panel, the front panel, the rear panel, the elongated floor assembly, the elongated first side panel, and the elongated second side panel. An under carriage structural lattice arrangement may be coupled to the lower side of the floor assembly from the midpoint and extending towards the front end. The under carriage structural lattice arrangement may include a first elongated lattice and a second elongated lattice, and the first elongated lattice and second elongated lattice may be substantially parallel to each other.