A safety trailer is shown including first and second platforms, at least one of said first and second platforms having an axle and wheels attached thereto; a plurality of interconnected wall sections positioned between and connected to the first and second platforms, the plurality of wall sections defining a protected work area on a side of the trailer; The axle of the trailer is engaged with a vertical adjustment member configured to selectively adjust a vertical position of the surface of the trailer.

Disclosed is a trailer including a bed portion. The bed portion includes a deck, a front extension, and a rear extension. The deck has a first end and a second end. The front extension is slideably engaged with the first end of the deck, and the rear extension is slideably engaged with the second end of the deck. The trailer is a double stretch trailer that is extendable from both ends of the deck. A towing system including a cab and the trailer is also disclosed.

A system includes a trailer frame, a lifting mechanism coupled to the trailer frame, wherein the lifting mechanism is configured to raise or lower a coil of pipe or a reel of pipe, a braking mechanism configured to apply pressure to the pipe while the pipe is being deployed by the system, and a hydraulic power unit configured to hydraulically power the system.

A system includes a trailer frame, a lifting mechanism coupled to the trailer frame, wherein the lifting mechanism is configured to raise or lower a coil of pipe or a reel of pipe, a braking mechanism configured to apply pressure to the pipe while the pipe is being deployed by the system, and a hydraulic power unit configured to hydraulically power the system.

A transportable fold-out at least partial enclosure includes in one aspect of the invention a stationary platform having a major surface defining a stationary plane, a plurality of side edges, a front edge and a back edge. A primary platform has a major surface defining a primary plane, an inside edge, an outside edge, a front edge, a back edge, the inside edge being joined to the stationary platform, the primary platform having a folded position in which the primary plane and stationary plane are oblique or orthogonal, and the primary platform having an extended position where the primary platform is unfolded from the stationary platform. An end wall assembly has at least two segments, each segment having a major surface defining a segment plane, side edges, a top edge and a bottom edge, the side edges of the segments being joined to each other, the bottom edges of each segment being joined to one of the stationary platform and the primary platform. The end wall assembly has an extended position in which the segment planes are at an angle to form a wall to both the stationary plane and the primary plane, and the end wall assembly having a folded position. At least one actuating mechanism is joined to at least one of the segments and the stationary platform or the primary platform to which said at least one of the segments is joined, said at least one actuating mechanism configured to provide a force to urge said at least one of the segments to the extended position.

A suspension system is provided comprising at least one ride height valve, when engaged, that allows an air flow to engage a hydraulic control valve such that it initiates either extension or retraction of a hydraulic piston from a cylinder. Extension or retraction of the hydraulic piston causes a booster frame to be bias downwardly or upwardly, respectively. The ride height valve is engaged when a booster axle is at a predetermined distance from the frame.

A housing and trailer system comprising a trailer and a housing. The housing includes a lower housing and an upper housing and may be positioned on friction-reducing members that reduce friction between the housing and trailer. The reduction of friction facilitates the housing to slide more efficiently on the trailer. A safety lever and linkage system operates to safely move roof support structures and raise/lower the upper housing. An adjustable cargo system is attached to a roof on the housing. The adjustable cargo system is adjustable to receive and/or secure different sizes of cargo.

An extendable trailer assembly configured to be towed by a vehicle. The extendable trailer assembly includes a first compartment including a floor, a pair of opposing sidewalls, and a ceiling. The first compartment is configured to be coupled to a trailer hitch of the vehicle. The extendable trailer assembly also includes a second compartment including a floor, a pair of opposing sidewalls, and a ceiling. The extendable trailer assembly also includes a slide assembly slidably coupling the second compartment to the first compartment such that the second compartment is slidable relative to the first compartment between a fully extended position and a fully retracted position in which the first compartment is at least partially housed inside of the first compartment. The extendable trailer assembly is free of road-capable wheels for transport by the vehicle.

A trailer includes a trailer frame having a hitch. A stationary support base is joined to the trailer frame. Two supports are slidably guided on the support base toward and away from each other. A wheel assembly is mounted to an end of each of the supports remote from the other support such that a distance between the wheel assemblies varies with movement of the supports on the support base. A locking device selectively locks each support to the support base in a first position where the wheel assemblies are furthest from each other and a second position where the wheel assemblies are closer to each other.

A tiltable trailer that can assume a high, or road, position, and a low loading position in which the trailer is tilted with respect to the ground. The trailer includes wheels; a chassis mounted on an axle that pivots with respect to the wheels; an actuator for actuating the pivoting of the axle relative to the wheels to vary the position of the chassis with respect to the ground, the actuator including a flexible element secured to the axle and a tensioner attached to the chassis for adjusting tension of the flexible element; and a lock for locking the trailer in the high position, which is separate from the actuator. The lock includes a sliding locking bar, a first end of which is secured to the axle and a second end of which cooperates with a locking mechanism, mounted on the chassis, when the trailer is in the high position.