This invention refers to a mobile room, which is designed to expand its interior spaces through a mechanism driven by a motor, which can be used as an auditorium or conference room, and can be installed temporarily in areas where there are no rooms or conventional audiences.

The collapsible trailer device includes a central support. The central support has a front end that is defined on an opposing side of a second end. The front end of the central support includes a trailer interface. The rear end of the central support provides an attachment for a rear support via a central support interface. The rear support is removably attachable to the central support and defines a first end opposite a second end. The second end of the rear support includes a rear axle. The rear axle defines a first side and a second side. The first side of the rear axle includes an interface for a first wheel via a first fastener. The second side of the rear axle includes an interface for a second wheel via a second fastener.

A slide-out room system includes a motor-driven sheath with wound cables for extending and retracting the slide-out room. The cables and the sheath are configured such that rotation of the sheath in one direction displaces the cables to extend the room and such that rotation of the sheath in an opposite direction displaces the cables to retract the room.

A material delivery and waste removal trailer that includes a scissors lift mechanism mounted on a main frame of the trailer that elevates a storage bin from the main frame and retracts the storage bin to the main frame. The storage bin has a frame mounted on the scissors lift and a container mounted to the frame of the storage bin. The container of the storage bin is movable pivotally vertically away the frame of the storage bin and linearly horizontally through the frame of the storage bin. A first hydraulic cylinder controls movement of the scissors lift mechanism away from the main frame and toward the main frame and a second hydraulic cylinder controls movement of the container of the storage bin away from the frame of the storage bin and toward and the frame of the storage bin.

The inventive disclosures described herein pertain to an improved folding trailer that is comprised of an improved load-absorbing swivel jack featuring a load-absorbing torsion-spring assembly to more-easily aid in safe trailer-folding operations, a hinged trailer tongue, an integral winch with an extended flexible coupling shaft, and an external or onboard rotational power source to drive the winch. More specifically, this folding-trailer configuration minimizes the physical exertion required of a user to fold or unfold the trailer, as well as significantly reduces the potential for serious user injury during the folding/unfolding process. The improved folding trailer also features foldable cargo-containment sides and multi-positionable tailgate, as well as removable/configurable cargo-carrying racks/rails.

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 bottom seal assembly (500) is disclosed for use with mobile living quarters such as an RV or residential vehicle (202). The bottom seal assembly (500) can include a jacket (514) connectable to a frame of the RV (505). The jacket (514) includes a main body (520), and a pair of wipes (528, 530) extending in a parallel configuration and directed toward a slide-out room floor (503). A bight portion (529) connects together the two wipes (528, 530) so as to form a gutter (534) for carrying off water and debris. A bottom wipe (524) extends outwardly from a base (522) of the main body (520). A spacer leg (532) extends inwardly from the jacket (514) and is used to appropriately position rollers (512) or wear bars (612), which can be utilized to smoothly move the room floor (503) between a raised and lowered position.

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; and wherein the trailer supports a ballast member, the ballast member being positioned near a first side of the trailer and the wall sections near a second, opposing side of the trailer, the ballast member offsetting, at least partially, a weight of the plurality of wall sections.

Method and apparatus for an extendable logging trailer constructed of left and right main I-beam members having left and right male telescoping beams moving on rollers on the bottom inner flange of the main I-beam members. The male telescoping beams allow the trailer to be retractable or extendable so that it can assist in offloading the logs/pipes from the logging trailer. In operation, a front bolster and push rack are moved in unison by a first hydraulic cylinder toward the rear of the trailer at the same time as a rear bolster is moved by a second hydraulic cylinder toward the front of the trailer thereby causing the length of the trailer to shorten. As the trailer shortens, the logs/pipes which are carried on the bolsters are forced toward the rear of the trailer so that gravity eventually causes the rear ends of the logs/pipes to fall downwardly toward the ground which allows the operator of the tractor which is pulling the logging trailer to move the logging trailer forwardly causing the logs/pipes to become completely offloaded from the logging trailer.

The inventive disclosures described herein pertain to an improved folding trailer that, in many embodiments, is comprised of an improved swivel jack to more-easily aid in safe trailer-folding operations, a hinged trailer tongue, an integral winch with an extended flexible coupling shaft, and an external or onboard rotational power source to drive the winch. More specifically, this folding-trailer configuration minimizes the physical exertion required of a user to fold or unfold the trailer, as well as significantly reduces the potential for serious user injury during the folding/unfolding process. The improved folding trailer also features foldable cargo-containment sides and multi-positionable tailgate, as well as removable/configurable cargo-carrying racks/rails.